text:
Aquaculture/Mariculture/Algaculture

Seaweed has been cultured for decades (probably longer) along the coastlines of nations including China, Korea and Japan. Since the 1980's, much of the seaweed production from other asian nations has been harvested from wild stocks however in nations including the Philippines and Indonesia limited culture has taken place. Seaweed is harvested throughout the world as a food source as well as an export commodity for the production of agar and other derivative products.

Demand for seaweed and seaweed products has been greater than supply since the 1970's hence cultivation has since been viewed as the most effective means to increase production. Since this time seaweed farming has become increasingly economically viable and profitable and as a consequence its expansion has accelerated. It has been suggested that the farming of seaweed is both a means to improve economic conditions in developing nations and a means to reduce fishing pressures (this latter point seems to be related to the fact that seaweed provides protection and food to a variety of species ranging from snails to dugongs).

Although not a complete or totally comprehensive explanation on farming seaweed the following manual is a good resource for anyone interested in the methodologies required to successfully farm seaweed: Manual on Seaweed Farming

Links

 * Ocean Vegetables - Harvesting Seaweed
 * University of Tasmania - Kelp Watch

title: Aquaculture/Mariculture/Algaculture


text: File:Motivation and Emotion - Lecture 12 - Conclusion and review 2011 6slidesperpage.pdf

license: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/4.0/


text: File:Motivation and Emotion - Lecture 12 - Conclusion and review 2011 3slidesperpage.pdf


text:
Simulation

A simulation is a way of seeing a thing happen without it actually taking place in the same way. A simulation can be used to predict what might happen without doing it, in case it is dangerous or too expensive or difficult. It can also be used to show people what will happen next, or what happened in the past. It can also show what people believe is happening in a place or time where it is impossible to know what really happens.

There are research institutions just devoted to simulations, like, e.g., The George E. Brown, Jr. Network for Earthquake Engineering Simulation or NEES.

Simulations are very useful all over the world, because in a simulation things can be controlled that might not be easy to control in real life. They can use or smaller versions of an object or system for testing or practice. They can often use smaller versions of things, like space ships or rooms, to simulate the real thing. They can also use a safer thing in place of a thing that is dangerous, like when astronauts practice in a swimming pool rather than in outer space. Astronauts also practice in simulations of the moon before they went and landed there, and in simulations of spaceships that move the way real spaceships do, so they can get used to it. Simulations often use computers or television. Computers are used to make simulations of what a spaceship's route might be on the way to the moon, to help plan the mission.

title: Simulation


text:
Motivation and emotion/Book/2011/Nature and psychological well-being/Transcript

Nature and Psychological Well-being Chapter Overview
Below is the transcript of a |5 minute audiovisual overview of the Nature and Psychological Well-Being textbook chapter by Emily Stein. The book chapter was created as an assessment piece for Motivation and Emotion, a psychology unit at University of Canberra.

I would like to acknowledge my very good friends James and Chris for their help with filming, editing and interviewing. Thank you very much.

The Transcript
Interviewer: Joining us today is the author of the new book called “nature and psychological well-being”. Emily is here to explain and summarise the key points and take-away messages. Emily, tells us about your book.

Emily: The book was written as a self-help guide to solving psychological distress by finding the solutions in nature. In the book I summarise the biophilia hypothesis and explain environmental aesthetics. I explore the power of restorative environments and the attention restoration theory. I have also written about nature deficit disorder, seasonal affective disorder and green exercise. Interviewer: You mentioned the biophilia hypothesis. What is that exactly?

Emily: The biophilia hypothesis states that all humans have a natural desire to be affiliated with nature. This stems from the 2 million years that humans survived on the savannah. We have evolved to unconsciously prefer certain landscapes to others based on their suitability for life. We still have this ability today in the 21st century.

Interviewer: Considering we no longer live in the savannah, how can this ability help us today?

Emily: Even though we no longer need to judge landscapes as being suitable for life, we still have a preference for natural over man-made environments. The evidence for this preference comes from many preference studies that explore the way we judge, describe and feel about natural stimuli. One study has suggested that using natural stimulus in the work setting can improve the health and well-being of the staff. We call this a restorative experience.

Interviewer: Why is a restorative environment important?

Emily: One reason why a restorative environment is important is because of mental fatigue. When focus on a project we drain our stores of directed attention. Directed attention requires a lot of effort and can make us irritable and mentally fatigued. We can restore our directed attention by using involuntary attention. This is the type we use for interesting and fascinating stimuli. This is the Attention Restoration Theory proposed by Kaplan and Kaplan in 1989.

Interviewer: What defines a restorative environment?

Emily: A restorative environment has four components. Firstly, it is a place that is away from the normal distractions of life and distinctively different. Secondly, it has a feeling of being in a different world that can be explored. The third component is fascination. Soft fascinations use our involuntary attention and help restore our directed attention. The fourth component is compatibility.

Interviewer: In your book you have written about the works of Richard Louv. He has coined the term “nature deficit disorder”. Can you tell me more about that?

Emily: Care must be given when talking about Nature deficit disorder as a definite disorder because it is not in the DSM. It is included in my book because he argues that many childhood disorders are partly caused due to the lack of direct contact with nature. His theory is similar to that of the Kaplan’s in that he recommends that children should spend more time in restorative environments. He believes that this will reduce obesity, attention deficit disorders and depression in children.

Interviewer: What is seasonal affective disorder and why have you included it in a nature and well-being book?

Emily: Seasonal affective disorder is major depression with a seasonal pattern. The seasons are part of nature and this is why it is included. The use of light therapy to re-balance melatonin levels is successfully used to treat seasonal affective disorder. Bright light therapy and dawn simulation are both natural treatments. They both effectively treat an illness which is regulated by nature itself.

Interviewer: Another key point in your book is green exercise. Why should I use green exercise when I could use my treadmill?

Emily: You can use your treadmill if you want. But next time I recommend displaying pleasant natural scenes onto the wall in front of you. That way you can watch them as you run. This technique was used in an experiment by Pretty and colleagues in 2005. The results suggested that those who paired pleasant natural scenes with exercise had higher mood and self-esteem ratings than the other groups. Exercise and nature both improve well-being, so the combining the two is a great way to increase psychological well-being even further.

Interviewer: What are the key take away messages of your book?

Emily: I want my readers to understand that nature can be used to improve psychological well-being. I would like them to realise that being in nature is not an unpleasant experience, but rather one that takes us back to our ancestral roots. Ultimately, the key message is simple. Please go outdoors and use nature to improve your life.

Interviewer: Thank you for being here today

Reference list
Louv, R. (2008). Last Child in the Woods: Saving our children from nature-deficit disorder. Chapel Hill: Algonoquin Books.

Kaplan, R. & Kaplan, S. (1989). The Experience of Nature: A psychological perspective. Cambridge: Cambridge University Press.

Pretty, J., Peacock, J., Sellens, M., & Griffin, M. (2005). The mental and physical health outcomes of green exercise. International Journal of Environmental Health Research, 15 (5). 319-337.


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title: File:DLTI.DiffEQ.1.A.20111115.pdf


title: File:DLTI.Laplace.1.A.pdf


title: File:DLTI.zTrans.1.A.20111115.pdf


text:
TAO/Silver Knowledge

Introduction
This article presents the activity Silver Knowledge (“Silberwissen”), a series of workshops aiming at making older adults Wikipedia authors. In a first section, the article includes some recommendations drawn from an evaluation of Silver Knowledge. These recommendations are of particular interest to people who...

... organize workshops for older adults and/or

... work with ICT and older adults.

Silver Knowledge in a Nutshell Among Wikipedia authors, the generation 50+ is underrepresented. This means that their experience and knowledge are not to be found in the online encyclopedia. One of the main goals of Wikimedia Germany is the diversity of its authors. Winning seniors as new authors therefore is an important aspect of fostering the diversity of knowledge in the Wikipedia. The target group 50+ comes with diverse and extensive knowledge which can enrich the Wikipedia and other Wikimedia projects. Among certain groups of seniors experiences in scientific research and writing are available. They can be used for the concept of Free knowledge. The Silver Knowledge programme aims at attracting people with extensive professional and life experience as authors for Wikipedia. In Silver Knowledge, a series of workshops (implemented in different locations) familiarizes small groups of around ten people with the most important techniques and rules in Wikipedia. Experienced authors lead workshops and can adapt to the wishes of the participants. The courses also provide space for questions and individual exchange in the group.

Recommendations
The following recommendations result from our evaluation of different Silver Knowledge locations. They concern different topics – see the headlines for those that you find interesting. We tried to include recommendations that are valid not only for this specific programme.

Recruiting suitable locations
In general cooperation partners should be able to motivate, activate and support seniors and therefore become part of an active community.
 * Establish personal contact with partner institutions to prevent skepticism.
 * Choose cooperation partners that show a high esteem for older adults and Wikipedia.
 * Suitable cooperation partners are for example:Organizations, clubs or groups that are willing to share their topics in the Wikipedia; Senior universities also belong to the group of suitable potential partners- here the possibility of finding cross links and interconnections to their courses of studies should be checked.

Workshops and follow-up

 * A single workshop should not last longer than four hours.
 * A series of three workshops is enough to get people interested in being a Wikipedia author and to teach basic skills, but not to keep people motivated in the long run.

Sustainable integration into the community

 * In order to integrate workshop participants sustainably into the Wikipedia community, follow-up activities should be offered (regular research meetings, outings, personal contact with a mentor etc.)
 * Arrange meetings with community members during the workshops and as follow-up activities

Methods of instruction

 * Attempt to create cohesion in the group of participants, e.g. by starting with some introductory activities and encouraging cooperation during the workshops.
 * Use a live broadcast of what you’re doing on the computer during the presentation.
 * Give a demonstration of the project topics as an introduction – but have the participants make their own practical experience on their computer as soon as possible (in Wikipedia, have them use the „Sandbox“).
 * Provide a computer for each individual so that all participants can advance at their own pace – and encourage participants to bring their own laptop (to avoid problems due to a lack of familiarity with the computer)
 * Homework allows the participants to make use of the time between courses and increases motivation for the next workshop.

Participants with common fields of interest

 * A common field of interest may increase the sense of belonging of each individual in the group of participants. Therefore it is recommented to address organizations or clubs with a topical focus, they often show interest in sharing their topics in the Wikipedia. Starting with this motivation a sustainable cooperation can develop quite often.

 * If there are common interests in a group of participants, they can be used for cooperative practices, supporting speakers in their duties.

Different Locations – Different Approaches
Silver Knowledge workshops have been implemented in many different locations. For some of them, we have evaluated the strengths and weaknesses of their individual approaches to the organisation and the target groups.

See the Wikiversity site "Comparison of different locations of activity" for the results of these evaluations.

Testimonials
"In Wikipedia, I can bring in my knowledge from 25 years of academic research in natural science. At first, I only improved some articles, but by now I've been able to publish a series of new articles."

(Retrieved from "http://en.wikiversity.org/w/index.php?title=TAO/Silver_Knowledge&oldid=976294")

Generation 50+ Underrepresented in Wikipedia
The international surveys of Wikipedia authors show that “age” is a very significant predictor of active contribution. Only 6.3% of Wikipedia authors are between 40 and 49 years of age, and people between 50 and 85 years – a span of more than three decades – make up only 5.2% of authors (Gosh, Glott 2010; http://www.wikipediasurvey.org). The project Silberwissen is led by the association Wikimedia Deutschland e.V. in the framework of the AAL project TAO. The Centre for General Scientific Continuing Education (ZAWiW) of Ulm University consults and supports Wikimedia scientifically in its coordination of the project Silberwissen.

Objective of Silver Knowledge

 * The objectives of Silver Knowledge are
 * To win over and activate older persons as Wikipedia authors.
 * To coach and support Wikipedia authors at regular meetings, to take part in editorial groups, workshops, and the mentoring program.
 * To find additional locations of activity in cooperation with institutions, initiatives and local educational bodies, and – if possible – establish permanent structures.
 * To develop community activities ensuring a sustainable activation and integration of senior authors in the Wikipedia community.

Activities of Silver Knowledge
As an initial stage of Wikipedia author training, interested seniors took part in a motivational presentation and a multi-part course or workshop at the different locations of activity. In selecting the locations a deliberate effort was made to choose cooperation partners that varied with regard to the type of institution, the range of offers, the main focus and target groups, and the priorities in the course of the project.

In the further course of the project seniors will continue to acquire competences and skills for the production of Wikipedia articles. This will be done at the respective locations by following an approach of small steps and sticking to a low-threshold communication. Apart from being trained as authors of original Wikipedia articles the activity options will also include new roles/tasks, e.g. the correction and amendment of existing articles (orthography and grammar), entering links to other sources and web pages, carrying out tasks of categorization as well as getting involved in related projects such as Wiki Commons and Wiki Sources etc.

Information for cooperation partners
On the basis of previous activities a checklist was created for carrying out Silver Knowledge activities together with cooperation partners. It addresses the cooperation partners but it is as well useful for the Wikipedia speakers. To the Wikiversity site "Information for cooperation partners"

Development of materials
For example a short introduction to write the first article in Wikipedia:
 * 1) step for step to the first Article
 * 2) Lemma (name/titel of the article): it must be short!
 * 3) a good introduction: short and concise; Make the Importance clear at the beginning (relevance, for example performance or achievement by people)
 * 4) write in a neutral tone (no enthusiasm, facts speak for themselves)
 * 5) reduce to significant (no anecdotes, important facts, sometimes less is more)
 * 6) provide evidence and references
 * 7) only links with an actual connection
 * 8) categories, personal data etc. could be made by experienced Wikipedians
 * 9) Make articles well known (link)

Links
Handbook Chapters

Silver Knowledge: Information for cooperation partners

Silver Knowledge: Comparison of different locations of activity

Older Adults and Online Communities

Fostering Older adults' Online Participation

Wikimedia Seniors' Outreach

German-language Wikiversity site on "Silver Knowledge"

External Links

Wikimedia Germany's Information on "Silberwissen" (in German)

title: TAO/Silver Knowledge


text:
User:EGM6321.f11.team1.pan/HW6

= R*6.1 Special IFM to solve a nonhomogeneous L2-ODE-CC with general f(t)= == Given == A nonhomogeneous L2-ODE-CC is
 * {| style="width:100%" border="0" align="left"

$$
 * $$\displaystyle a_2y''+a_1y'+a_0y=f(t)$$
 * $$\displaystyle (Equation\;6.1.1)
 * $$\displaystyle (Equation\;6.1.1)
 * }
 * }

Find
$$\mathbf{(1)}$$ Find the PDEs that govern the integrating factor h(x,y) for Equation(6.1.1).

$$\mathbf{(2)}$$ Trial solution for the integrating factor $$\displaystyle h(t)=e^{\alpha t}$$ where $$\displaystyle \alpha$$ is unknown to be determined.
 * {| style="width:100%" border="0" align="left"

$$ Because of the integrating factor in exponential form, assume the LHS of Equation(6.1.2) take the form :
 * $$\displaystyle \int \, e^{\alpha t}[a_2y''+a_1y'+a_0y]dt= \int \, e^{\alpha t}f(t)dt$$
 * $$\displaystyle (Equation\;6.1.2)
 * $$\displaystyle (Equation\;6.1.2)
 * }
 * }
 * {| style="width:100%" border="0" align="left"

$$
 * $$\displaystyle \int \, e^{\alpha t}[a_2y''+a_1y'+a_0y]dt= e^{\alpha t}[\bar a_1y'+\bar a_0y]$$
 * $$\displaystyle (Equation\;6.1.3)
 * $$\displaystyle (Equation\;6.1.3)
 * }
 * }

$$\mathbf{(2.1)}$$ Find $$\displaystyle (\bar a_1,\bar a_0)$$ in terms of $$\displaystyle (a_0,a_1,a_2)$$.

$$\mathbf{(2.2)}$$ Find the quadratic equation for $$\displaystyle \alpha$$
 * {| style="width:100%" border="0" align="left"

$$
 * $$\displaystyle a_2\alpha ^2-a_1\alpha+a_0=0$$
 * $$\displaystyle (Equation\;6.1.4)
 * $$\displaystyle (Equation\;6.1.4)
 * }
 * }

$$\mathbf{(2.3)}$$ Reduced-order equation: Equation(6.1.3)and Equation(6.1.4) lead to
 * {| style="width:100%" border="0" align="left"

$$
 * $$\displaystyle \bar a_1y'+\bar a_0y=e^{-\alpha t}\int d^{\alpha t}f(t)dt$$
 * $$\displaystyle (Equation\;6.1.5)
 * $$\displaystyle (Equation\;6.1.5)
 * }
 * }

$$\mathbf{(2.4)}$$ Use the IFM to solve Equation(6.1.5)
 * {| style="width:100%" border="0" align="left"

$$ Find the solution y(t) for general excitation f(t).
 * $$\displaystyle \bar h(t)=exp[\int \, \frac{\bar a_0}{\bar a_1}dt]=e^{\beta t}$$
 * $$\displaystyle (Equation\;6.1.6)
 * $$\displaystyle (Equation\;6.1.6)
 * }
 * }

$$\mathbf{(2.5)}$$ Show that
 * {| style="width:100%" border="0" align="left"

$$
 * $$\displaystyle \alpha\beta=\frac{a_0}{a_2}$$
 * $$\displaystyle (Equation\;6.1.7)
 * $$\displaystyle (Equation\;6.1.7)
 * }
 * }
 * {| style="width:100%" border="0" align="left"

$$ thus $$\displaystyle (\alpha,\beta)$$ are roots of the quadratic equation:
 * $$\displaystyle \alpha+\beta=\frac{a_1}{a_2}$$
 * $$\displaystyle (Equation\;6.1.8)
 * $$\displaystyle (Equation\;6.1.8)
 * }
 * }
 * {| style="width:100%" border="0" align="left"

$$
 * $$\displaystyle (\lambda-\alpha)(\lambda-\beta)=\lambda^2-\underbrace{(\alpha+\beta)}_{\displaystyle \frac{a_1}{a_2}}\lambda+\underbrace{\alpha\beta}_{\displaystyle \frac{a_0}{a_2}}=0$$
 *
$$\displaystyle (Equation\;6.1.9)
 *
$$\displaystyle (Equation\;6.1.9)
 * }
 * }

$$\mathbf{(2.6)}$$ Deduce the particular solution $$y_p(t)\,$$ for general excitationf(t).

$$\mathbf{(2.7)}$$ Verify result with table of particular solution for:
 * {| style="width:100%" border="0" align="left"

$$
 * $$\displaystyle f(t)=texp(bt)$$
 *
$$\displaystyle (Equation\;6.1.10)
 *
$$\displaystyle (Equation\;6.1.10)
 * }
 * }

$$\mathbf{(2.8)}$$ Solve the nonhomogeneous L2-ODE-CC Equation(6.1.1) with the Hyperbolic function:
 * {| style="width:100%" border="0" align="left"

$$ For the coefficients $$(a_0,a_1,a_2)$$, consider two different characteristic equations:
 * $$\displaystyle f(t)=tanht$$
 *
$$\displaystyle (Equation\;6.1.11)
 *
$$\displaystyle (Equation\;6.1.11)
 * }
 * }

$$\mathbf{(2.8.1)}$$
 * {| style="width:100%" border="0" align="left"

$$
 * $$\displaystyle (r+1)(r-2)=0$$
 *
$$\displaystyle (Equation\;6.1.12)
 *
$$\displaystyle (Equation\;6.1.12)
 * }
 * }

$$\mathbf{(2.8.2)}$$
 * {| style="width:100%" border="0" align="left"

$$
 * $$\displaystyle (r-4)^2=0$$
 *
$$\displaystyle (Equation\;6.1.13)
 *
$$\displaystyle (Equation\;6.1.13)
 * }
 * }

$$\mathbf{(2.9)}$$ For each case in Equation(6.1.12)and Equation(6.1.13), determine the fundamental period of undamped free vibration, and plot the solution for the excitation for about 5 periods, assuming zero initial conditions.

Solution
$$\mathbf{(1)}$$ Multiply Equation(6.1.1) by the integrating factor h(t,y): $$\underbrace{h(t,y)a_2}_{\displaystyle f}y''+\underbrace{h(t,y)a_1y'+h(t,y)a_0y-h(t,y)f(t)}_{\displaystyle g}=0 $$ Recall the 2nd exactness condition for N2-ODEs: $$\displaystyle f_{xx}+2pf_{xy}+p^2f_{yy}=g_{xp}+pg_{yp}-g_y$$ $$\displaystyle f_{xp}+pf_{yp}+2f_y=g_{pp} $$ Calculate the following terms in the exactness condition: $$\displaystyle f_t=a_2h_t\,;\,f_{tt}=a_2h_{tt}\,;\,f_{ty}=a_2h_{ty}\,;\,f_{tp}=0$$ $$\displaystyle f_y=a_2h_y\,;\,f_{yy}=a_2h_{yy}\,;\,f_{yp}=0$$ $$\displaystyle g_t=a_1ph_t+a_0yh_t-f(t)\cdot h_t-h\cdot f'(t)$$ $$\displaystyle g_{tp}=a_1h_t$$ $$\displaystyle g_y=a_1ph_y+a_0yh_y+a_0h-f(t)h_y$$ $$\displaystyle g_{yp}=a_1h_y\,;\,g_p=a_1h\,;\,g_{pp}=0$$ Substituting those calculated terms into 2nd exactness condition: $$\displaystyle a_2h_{tt}+2p\cdot a_2 h_{ty}+p^2\cdot a_2h_{yy}=a_1h_t+\cancel{p\cdot a_1h_y}-\cancel{a_1ph_y}-a_0yh_y-a_0h+f(t)h_y$$ $$\displaystyle 0+p\cdot 0+2\cdot a_2h_y=0$$ From the second equation, we can obtain that $$\displaystyle h_y=0$$ which means that integrating factor $$\displaystyle h(t,y)=h(t)$$. Substituting h(t) into the first equation of 2nd exactness condition, we can obtain an L2-ODE-CC, $$\displaystyle a_2h_{tt}-a_1h_t+a_0h=0$$ Therefore, that PDE reduces into an ODE, which can be solved.

$$\mathbf{(2.1)}$$ Differentiate the RHS of Equation(6.1.3), $$\displaystyle \frac{d}{dt}\left[e^{\alpha t}(\bar a_1y'+\bar a_0y)\right]=\alpha e^{\alpha t}(\bar a_1y'+\bar a_0y)+e^{\alpha t}(\bar a_1 y''+\bar a_0 y')$$ $$\displaystyle =e^{\alpha t}[\bar a_1y''+(\bar a_0+\alpha \bar a_1)y'+\alpha \bar a_0y]$$ Compare the coefficient with the integrand on LHS of Equation(6.1.3), $$\displaystyle e^{\alpha t}[\bar a_1y+(\bar a_0+\alpha \bar a_1)y'+\alpha \bar a_0y]=e^{\alpha t}[a_2y+a_1y'+a_0y]$$ $$\displaystyle \bar a_1=a_2$$ $$\displaystyle \bar a_0+\alpha \bar a_1=a_1$$ $$\displaystyle \alpha \bar a_0=a_0$$

We can find $$\displaystyle (\bar a_1,\ \bar a_0)$$ in terms of $$\displaystyle (a_0,\ a_1,\ a_2)$$ that $$\displaystyle \bar a_1=a_2$$ $$\displaystyle \bar a_0=\frac{a_0}{\alpha}$$

$$\mathbf{(2.2)}$$ Substituting $$\displaystyle \bar a_0$$ and $$\displaystyle \bar a_1$$ into $$\displaystyle \bar a_0+\alpha \bar a_1=a_1$$, we can get that <\br> $$\displaystyle \frac{a_0}{\alpha}+\alpha\cdot a_2=a_1$$ Rearrange it, we obtain the quadratic equation for $$\displaystyle \alpha$$: $$\displaystyle a_2 \alpha^2-a_1\alpha+a_0=0$$

$$\mathbf{(2.3)}$$ Therefore, the reduced-order equation is obtained $$\displaystyle e^{\alpha t}[\bar a_1y'+\bar a_0y]=\int e^{\alpha t}f(t)dt$$ Rewrite it,
 * {| style="width:100%" border="0" align="left"

$$ Equation(6.1.14) is a L1-ODE-CC, which can be solved by the IFM.
 * $$\displaystyle \bar a_1y'+\bar a_0y=e^{-\alpha t}\,\int e^{\alpha t}f(t)dt$$
 *
$$\displaystyle (Equation\;6.1.14)
 *
$$\displaystyle (Equation\;6.1.14)
 * }
 * }

$$\mathbf{(2.4)}$$ Recall the IFM of general non-homogeneous L1-ODE-VC, $$\displaystyle 1\cdot y'+\underbrace{\frac{Q(x)}{P(x)}}_{a_0(x)}y=\underbrace{\frac{R(x)}{P(x)}}_{b(x)}$$ The integrating factor is $$\displaystyle h(x)=exp[\int^x a_0(s)ds]$$ The solution is $$\displaystyle y(x)=\frac{1}{h(x)}\left[\int^x h(s)b(s)ds+k\right]$$ Divided Equation(6.1.14) by $$\displaystyle \bar a_1$$, $$\displaystyle 1\cdot y'+\underbrace{\frac{\bar a_0}{\bar a_1}}_{\displaystyle \beta}y=\underbrace{\frac{e^{-\alpha t}}{\bar a_1}\, \int e^{\alpha t} f(t)dt}_{\displaystyle b(t)}$$ Therefore, we can obtain the integrating factor $$\displaystyle \bar h(t)=exp[\int\,\frac{\bar a_0}{\bar a_1} dt]$$ $$\displaystyle =exp[\int\,\beta dt]$$ $$\displaystyle =e^{\beta t}$$ Therefore, the solution of Equation(6.1.14) is $$\displaystyle y(t)=\frac{1}{\bar h(t)}\left[ \int^t h(s)b(s)ds+k\right]$$
 * {| style="width:100%" border="0" align="left"

$$
 * $$\displaystyle =\frac{1}{e^{\beta t}}\int^t e^{\beta s}\cdot\frac{e^{-\alpha s}}{\bar a_1}\left[\int^s e^{\alpha \tau}f(\tau)d\tau\right]ds$$
 *
$$\displaystyle (Equation\;6.1.15)
 *
$$\displaystyle (Equation\;6.1.15)
 * }
 * }

$$\mathbf{(2.5)}$$ Substitute $$\displaystyle \bar a_1=a_2\,;\,\bar a_0+\alpha \bar a_1=a_1\,;\,\alpha \bar a_0=a_0$$ into $$\displaystyle \alpha$$ and$$\displaystyle \beta$$, we can obtain that $$\displaystyle \alpha\beta=\alpha \frac{\bar a_0}{\bar a_1}=\frac{a_0}{\bar a_1}=\frac{a_0}{a_2}$$ $$\displaystyle \alpha +\beta= \frac{a_1-\bar a_0}{\bar a_1}+\frac{\bar a_0}{\bar a_1}=\frac{a_1}{\bar a_1}=\frac{a_1}{a_2}$$ Thus, $$\displaystyle (\alpha,\beta)$$ are the roots of the following quadratic equtation: $$\displaystyle (\lambda-\alpha)(\lambda-\beta)=\lambda^2-\underbrace{(\alpha+\beta)}_{\displaystyle \frac{a_1}{a_2}}\lambda+\underbrace{\alpha\beta}_{\displaystyle \frac{a_0}{a_2}}$$ Obviously, it is the same as the quadratic equation obtained by $$\mathbf{(2.2)}$$.

$$\mathbf{(2.6)}$$ Rearrange the solution of Equation(6.1.14) $$\displaystyle \frac{1}{e^{\beta t}}\int^t e^{\beta s}\cdot\frac{e^{-\alpha s}}{\bar a_1}\left[\int^s e^{\alpha \tau}f(\tau)d\tau\right]ds$$ $$\displaystyle =e^{-\beta t}[\int^t\frac{e^{(\beta-\alpha)s}}{\bar a_1}\int^s e^{\alpha \tau}f(\tau)d\tau]ds$$ $$\displaystyle =\frac{e^{-\beta t}}{\bar a_1}[\int^t e^{(\beta-\alpha)s}[\int e^{\alpha s}f(s)ds+k_1]ds]$$ $$\displaystyle =\frac{e^{-beta t}}{\bar a_1}[\int^te^{\beta-\alpha)s}[\int e^{\alpha s}f(s)ds]ds+\int^t e^{(\beta-\alpha)s}k_1ds]$$ $$\displaystyle =\frac{e^{-\beta t}}{\bar a_1}[\int e^{(\beta-\alpha)t}[\int e^{\alpha s}f(s)ds]dt+k_2+\frac{k_1}{\beta-\alpha}e^{(\beta-\alpha)t}]$$ $$\displaystyle =\underbrace{\frac{k_1}{\bar a_1(\beta-\alpha)}e^{-\alpha t}}_{\displaystyle C_1 y_H^1}+\underbrace{\frac{k_2}{\bar a_1}e^{-\beta t}}_{\displaystyle C_2 y_H^2}+\underbrace{\frac{e^{-\beta t}}{\bar a_1}\int e^{(\beta-\alpha)t}[\int e^{\alpha s}f(s)ds]dt}_{\displaystyle y_P}$$ The particular solution $$\displaystyle y_P(t)$$ for general excitation $$\displaystyle f(t)$$ is $$\displaystyle y_P(t)=\frac{e^{-\beta t}}{\bar a_1}\int e^{(\beta-\alpha)t}[\int e^{\alpha s}f(s)ds]dt$$

$$\mathbf{(2.8.1)}$$ $$\displaystyle \alpha$$ and $$\displaystyle \beta$$ is the roots of quadratic equation: $$\displaystyle (r+1)(r-2)=0.$$ Therefore let $$\displaystyle \alpha=-1\,;\,\beta=2$$ As for the excitation f(t) is Hyperbolic function: $$\displaystyle f(t)=tanh(t).$$ For the general solution Equation(6.1.15) $$\displaystyle y(t)=\frac{1}{6a_2}\left[1+2e^{-2t}log(e^{2t}+1)-4e^ttan^{-1}(e^{-t})\right]$$ This is calculated by www.wolframalpha.com.

$$\mathbf{(2.8.2)}$$ The quadratic equation is: $$\displaystyle (r-4)^2=0.$$ Therefore let $$\displaystyle \alpha=\beta=4$$ As for the excitation f(t) is Hyperbolic function: $$\displaystyle f(t)=tanh(t).$$ For the general solution Equation(6.1.15) $$\displaystyle y(t)=\frac{1}{a_2}\left[-\frac{Li_2(-e^{2t}\cdot e^{-4t})}{2}-\frac{e^{-2t}}{2}+\frac{1}{16}\right]$$ where $$\displaystyle Li_2(t)\,$$ is the polylogarithm function. This is calculated by www.wolframalpha.com.

title: User:EGM6321.f11.team1.pan/HW6


text:
User:EGM6321.f11.team1.pan/sample

 * {| style="width:100%" border="0" align="left"

$$
 * $$\displaystyle a_2y''+a_1y'+a_0y=f(t)$$
 * $$\displaystyle (Equation\;6.1.1)
 * $$\displaystyle (Equation\;6.1.1)
 * }
 * }

$$\displaystyle $$

$$\displaystyle $$

title: User:EGM6321.f11.team1.pan/sample


text:
Talk:Engineering Projects/Bridges/Howard Community College/fall2011/501 DAS 2

50/100 points .. means also that you are getting only half of your pending points .. please revise for more points .. let me know you have revised this p2 page 1sfoerster 18:33, 15 November 2011 (UTC)

incomplete reports, no next steps, no estimated time, no clear differenciation between story and summary, no single graphic for the poster, not even documentation of the success and innovation that I have physically seen 1sfoerster 18:31, 15 November 2011 (UTC)


text:
Talk:Engineering Projects/HoverCraft/Howard Community College/Fall2011/501 Glorious2

90/100 .. don't have a true poster, otherwise excellent 1sfoerster 18:39, 15 November 2011 (UTC)


text:
Talk:Helicopter/Howard Community College/Fall2011/501 Eagles

80/100 ... please create a true poster .. no total time .. just an estimate 1sfoerster 19:45, 15 November 2011 (UTC)

90/100 ... still no poster .. poster is a collage of different photographs 1sfoerster 14:54, 5 December 2011 (UTC)


text:
Talk:Static electricity/Howard Community College/Fall 2011/501 Lifters

100/100 ... good job 173.69.172.33 21:04, 15 November 2011 (UTC)


text:
Talk:Engineering Projects/Rubberband gun/Howard Community College/fall2011/501 Rubberman

10/100 ... basically nothing is filled out 173.69.172.33 21:06, 15 November 2011 (UTC)

100/100 .... good job 1sfoerster 19:49, 7 December 2011 (UTC)


text:
Talk:Engineering Projects/Engines/Howard Community College/Fall2011/501 BigBlock

100/100 1sfoerster 21:08, 15 November 2011 (UTC)


text:
Talk:Engineering Projects/BallBot/Howard Community College/Fall2011/501 BBotz2

80/100 ... no summary, no real poster ... just series of photos


text:
Talk:Engineering Projects/Corn Starch/Howard Community College/Fall 2011/501 Speakers

90/100 .. no real poster .. just series of photos .. need one jpg that can be used as a poster 1sfoerster 21:11, 15 November 2011 (UTC)


text:
User talk:1sfoerster/Tape purge/Howard Community College/Fall2011/502 ZNS

90/100 ... no poster 1sfoerster 21:15, 15 November 2011 (UTC)


text:
Geotechnical engineering

Geotechnical engineering is an important subset of civil engineering dealing with engineering performance of earth materials. Geotechnical engineering uses the principles of soil and rock mechanics to determine:

 * subsurface conditions and materials;
 * relevant physical/mechanical and chemical properties of these materials;
 * stability of natural slopes and man-made soil deposits;
 * risks posed by site conditions;

which should be used in a process of design of:
 * earthworks;
 * structure foundations;

and in monitoring of:

 * site conditions;
 * earthwork and foundation construction.

Foundations built for above-ground structures include shallow and deep foundations. Retaining structures include earth-filled dams and retaining walls.

title: Geotechnical engineering


text:
Bernoulli/Howard Community College/Fall2011/502 Desi'z

Problem Statement
To differentiate between Bernoulli and Coanda Effect.

Team Members
Put each team members name here with links to their personal page here. Real names do not have to be used.
 * User:Mkhan4793/enes100/Bernoulli Effect
 * User:Hsingh8658/enes100/Bernoulli Effect
 * User:Afayyaz6843/enes100/Bernoulli Effect

Summary
The main purpose of our project was to distinguish between Coanda and Bernoulli effect. We started by looking at some demonstrations of bernoulli effect. While looking through them, we found that some applications of Bernoulli effect were explained erroneously. We were focussing more on floating of table tennis ball in air stream of hair dryer. Bernoulli's law cannot be applied to a free air stream because friction plays an important role. The situation is similar to the laminar flow of a liquid with viscosity inside a tube. The different velocity of the stream layers is caused by viscosity. The static pressure is same throughout the whole cross-section. A free air stream in the atmosphere is decelerated by friction. If static pressure in a free air stream is equal to atmospheric pressure, some of the demonstrations are interpreted incorrectly since the effects observed are not caused by Bernoulli's law. The ball remains in air due to Coanda effect. Due to coanda effect the air stream sticks to the surface of the ball and the airstream is directed downward and the reaction force keeps the ball upwards. The following link explains this effect http://www.sciencetoymaker.org/balloon/links.html One source of confusion is the derivation of Bernoulli's law based on the theorem of energy conservation. Bernoulli's law should be derived from the tangential acceleration as a consequence of declining pressure. Another source of difficulties is the fact that many physics textbooks do not mention normal acceleration of flow and the resulting pressure gradients perpendicular to the flow.

Both, Bernoulli's law and the generation of pressure gradients perpendicular to the flow are consequences of Newton’s laws. None of them contradicts those.

Bernoulli's law is insufficient to explain the generation of low pressure. A faster streaming velocity never produces or causes lower pressure. The physical cause of low or high pressure is the forced normal acceleration of streaming air caused by obstacles or curved planes in combination with the Coanda-effect. Pressure gradients generated by the deflection of streaming air can be clearly demonstrated by simple experiments.Coanda is the tendency of a moving fluid, either liquid or gas, to attach itself to a surface and flow along it. As a fluid moves across a surface a certain amount of friction (called "skin friction") occurs between the fluid and the surface, which tends to slow the moving fluid. This resistance to the flow of the fluid pulls the fluid towards the surface, causing it stick to the surface. Thus, a fluid emerging from a nozzle tends to follow a nearby curved surface-even to the point of bending around corners-if the curvature of the surface or the angle the surface makes with the stream is not too sharp.

Poster
We have put the pictures of the demonstrations that we had done in the order:

Story
Our explanation of Bernoulli effect for standing of ping-pong ball in air was also wrong.The correct explanation involves the Coanda effect. When the air stream flows past the ball, some of the air follows the contour of the ball and only leaves after it moves a significant distance along the surface of the ball. In effect, the ball is "pulling" the air around its surface. There must always be some reaction force on the ball, which points in the direction of the air stream and upward, holding the ball in the air. This effect can be better understood by following this http://www.sciencetoymaker.org/balloon/links.html

We also had worked on different demonstrations during the coarse of last few weeks.

http://www.youtube.com/watch?v=Q7psavgw98Q

http://www.youtube.com/watch?v=bNNfs2P5Gkc&feature=related

http://www.youtube.com/watch?v=Z95TKv1YEPA&feature=related

http://www.youtube.com/watch?v=nsqNO_yPKg0&feature=related

These demonstrations were done by different team members put effort in them individually.

Decision List
We decided to work on the mechanism of Bernoulli Box. We did understood how it was working,but we were not able to find the bernoulli disk. Because of the reason we didn't get the bernoulli disk, we were not able to show the demonstration. We all decided to demonstrate the Bernoulli effect, but all agreed that the effect we demonstrated was more of a Coanda and not Bernoulli.

Material List
Two Hair driers.

Ping Pong balls

Zip drive that was designed on the basis of the Bernoulli principal.

Tube

5.0 amp adapter, and USB cable for zip drive

plain paper

roll of toilet paper

blower

Software List
The most part was to research using different search engines. Used different websites to conclude the information and research.

No particular software was used and needed for this project.

Time
The amount of time we spent on pushing the project forward was 5-6 hours weekly and 2 class periods. That's makes a total of 24 hours for each and a team total of 72 hours. Additional time was spent if needed to finish something. We all gathered up in the library, shared our ideas, and finished anything that was incomplete.

Tutorials
Doing research and understanding the difference between Bernoulli effect and coanda was the most important part of the project. Links on user-pages of our team members can be very helpful in understanding those differences.

Most of the tutorials we got were from youtube videos.

Next Steps
The research has been done from a variety of different resources. The differentiation has also been done on Coanda and Bernoulli effect based on the research we had done. The next step would be to design something new to distinguish between Coanda and Bernoulli Effect. Find a Bernoulli disk and make the motor spin to show the Bernoulli Effect in the Iomega Zip Drive.

Demonstrate the bernoulli effect using balloons

Misconceptions About Bernoulli Effect
We have reseached and done a lot of demonstrations in order to differentiate Bernoulli Effect with Coanda Effect. Our research mostly started with the explanations about Coanda effect which we thought was the Bernoulli Effect. The demonstrations that we did with the ping pong balls was the coanda effect. After having a discussion with the team mates, we came to the conclusion that the Bernoulli effect is the phenomenon of internal pressure reduction with increased stream velocity in a fluid.

These pictures are given in order to show the correctness of the airplane flight.


text:
Talk:Bernoulli/Howard Community College/Fall2011/502 Desi'z

10/100 ... nothing has been done on the team page


text:
Talk:Engineering Projects/Robot arm/Howard Community College/Fall2011/502 TFCWNS

100/100 ... 1sfoerster 17:01, 14 December 2011 (UTC)


text:
Talk:Helicopter/Howard Community College/Fall2011/502 Helicopter 2

90/100 ... need true poster 1sfoerster 21:31, 15 November 2011 (UTC)


text:
Talk:Engineering Projects/Music projects/Howard Community College/fall2011/502 The Tin Can Band

100/100 .. excellent 1sfoerster 21:33, 15 November 2011 (UTC)


text:
Talk:Engineering Projects/FanWing/Howard Community College/Fall2011/550 Aviators

90/100 .. no true poster 1sfoerster 21:39, 15 November 2011 (UTC)


text:
Talk:Engineering Projects/Illuminate Clothing/Howard Community College/Fall2011/550 T2C 2ND PROJECT

80/100 .. no poster, no total time spent 1sfoerster 21:45, 15 November 2011 (UTC)


text:
Talk:Wind Tunnel/Howard Community College/Fall 2011/550 Wizard Jr

100/100 .. good job 1sfoerster 21:50, 15 November 2011 (UTC)


text:
User talk:Afayyaz6843/enes100/Model Boat

10/10 . week 0 grading 1sfoerster 23:21, 15 November 2011 (UTC)

not really my old bike got thrown away...Mkhan4793 05:10, 14 November 2011 (UTC)

Definitely, I will bring the remote control next class so we can start working on the electrical side of it. Hopefully by then we will have our new tube as well Mkhan4793 20:59, 19 November 2011 (UTC)

10/10/30 ... good job 1sfoerster 20:54, 21 November 2011 (UTC)

adnan, good job with fans. Yes I do have an idea on how to connect the Middle Propeller to the boat. The RC remote will be connected with the Small reviver that we found in the car and the receiver will be connect with the fans. Mkhan4793 21:18, 26 November 2011 (UTC)

10/10/80 .. 1sfoerster 14:51, 28 November 2011 (UTC)

adnan, I guess we are almost done with our boat. Got to finish working on the remote connectivity. Mkhan4793 23:15, 2 December 2011 (UTC)

thanks adnan, it wouldnt be possible without you and sure will get going with it.

You guys did a great job, I was a bit busy last week; see you guys on tuesday Hsingh8658 04:21, 5 December 2011 (UTC)

10/10/80 ... great job 1sfoerster 18:51, 5 December 2011 (UTC)

0/0/0 ... nothing to grade 1sfoerster 16:57, 14 December 2011 (UTC)


text: User:Steven (WMF)

title: User:Steven (WMF)


text:
User talk:Jamorgan3/enes100/Glorious3

5/10 .. no week 0 objectives

Your supposed to say "I" in your wiki page, to tell us what you did, not what the team did as a whole. But I can tell that you are learning along with the team, so that is good. Drew_Dollas 11:17, 21 November 2011 (UTC)

10/10/10 .. not clear who did what with the resistors ... looks like both you and andrew did the same thing .. need to use electronic speed controllers .. what I was demonstrating in class 1sfoerster 15:30, 21 November 2011 (UTC)

hey so ive charged up the 8.4v batteries if we want to give it a shot. also i changed out the motor with the ics motor i brought in. everything works fine just the resistors still wont work but i dont know if we will need them cause the motor is significantly slower than the other one Jkim7610 04:22, 28 November 2011 (UTC)

I can tell that you are learning a good amount about batteries, that's good. Drew_Dollas 06:05, 28 November 2011 (UTC)

10/10/0 .. nothing new .. why aren't the resistors working? what is the science behind this? what is ohm's law? what are the internet motor tutorials? 1sfoerster 13:32, 28 November 2011 (UTC)

I have still not figured out how to get the motor to do what I want it to on the arduino board yet, but I am getting there. I did not bring the correct battery home with me, and I think that may be the reason why I cannot get it to work, because I only had a 9-volt battery to use for it. Drew_Dollas 05:35, 5 December 2011 (UTC)

10/10/5 .. not clear who is doing what ... say I when you do something 1sfoerster 15:03, 5 December 2011 (UTC)

10/10/10 .. again it is not clear who is doing what ... 1sfoerster 15:41, 14 December 2011 (UTC) Hey guys I uploaded three more videos onto youtube for the 3 different types of batteries that we have. Im pretty sure we are all gonna choose the lipo battery to power our project. go to my page on the team page and check out the video on week 4. Jkim7610 16:42, 5 December 2011 (UTC)

Its a good thing you are talking about what Austin is doing, since he is not talking about it. I wish we had more time to work on this project, everything is finally starting to come together. Drew_Dollas 07:46, 12 December 2011 (UTC)

title: User talk:Jamorgan3/enes100/Glorious3


text:
User talk:Drew Dollas/enes100/Glorious3

10/10 ... 173.69.172.33 22:28, 15 November 2011 (UTC)

It doesn't look like you have anything here for Week 1. Maybe I'm just early checking it, but make sure you get this done on time. Jamorgan3 04:06, 21 November 2011 (UTC)

10/10/10 ... need to distinguish who does what .. too much "we" with the resistors .. not enough transparency .. need to look into the electronic speed controllers I was demonstrating 1sfoerster 15:31, 21 November 2011 (UTC)

hey so ive charged up the 8.4v batteries if we want to give it a shot. also i changed out the motor with the ics motor i brought in. everything works fine just the resistors still wont work but i dont know if we will need them cause the motor is significantly slower than the other one. also ill bring in the smart charger that i use. ive got two of em. Jkim7610 04:23, 28 November 2011 (UTC)

Again, maybe I'm just checking this before you finish it. Let me know if that's the case, or try to get it done a little earlier. You are definitely making a lot of progress on this project and you're gaining a lot of knowledge. Just make sure your page gets done on time. Jamorgan3 04:36, 28 November 2011 (UTC)

10/10/0 ... you are using the word "servo" ... I don't see any evidence of a servo motor in your pictures ... you can get points for documenting all the details of your arduino failure ... this is more important than documenting success ... 1sfoerster 13:34, 28 November 2011 (UTC)

Well done. You've made a lot of progress on this project and have clearly learned a lot on the subject. Maybe we can get a working hovercraft by the end of the semester! Jamorgan3 05:24, 5 December 2011 (UTC)

10/10/10 .. ESC flashes when power is applied, flashes to communicate programming mode .. sometimes emits beeps ... need more detail of the circuit, of the software tried, did the motor twitch? ... this is opportunity to get lots of points observing as many details as possible 1sfoerster 15:02, 5 December 2011 (UTC)

Hey guys I uploaded three more videos onto youtube for the 3 different types of batteries that we have. Im pretty sure we are all gonna choose the lipo battery to power our project. go to my page on the team page and check out the video on week 4. Jkim7610 16:42, 5 December 2011 (UTC)

Your page looks good. You've filled out a good amount of info and filled us in. You've clearly learned a lot in this class and you've contributed to the project a lot. It's been great working with you on this project! Jamorgan3 07:41, 12 December 2011 (UTC)

10/10/30 ... 1sfoerster 15:41, 14 December 2011 (UTC)

title: User talk:Drew Dollas/enes100/Glorious3


text:
User talk:Ablomme2125/enes100/Glorious3

5/10 ... no week 0 objectives

It doesn't look like you have anything here for Week 0 or 1. Maybe I'm just early checking it, but make sure you get this done on time. It'll get you a lot of needed points. Jamorgan3 04:08, 21 November 2011 (UTC)

Come on man, again... nothing done on your wiki page... Drew_Dollas 11:19, 21 November 2011 (UTC)

0/0/0 .. nothing for week 1 1sfoerster 15:27, 21 November 2011 (UTC)

You were going to try to have this done after you figured out where it needed to go. You really need to keep up with this so you can improve your grade and share your information with everyone. Jamorgan3 04:34, 28 November 2011 (UTC)

dude u should really start to update ur wiki pages. losing some pretty serious points. and gotta get some work done in class as well. never see u in it. Jkim7610 04:40, 28 November 2011 (UTC)

Still nothing here... Drew_Dollas 06:06, 28 November 2011 (UTC)

0/0/0 ... nothing to grade 1sfoerster 13:35, 28 November 2011 (UTC)

You definitely know what you're doing and have made some helpful contributions to the project recently. You still aren't writing in your wiki page though. It's kind of late to make it up unfortunately. Jamorgan3 05:27, 5 December 2011 (UTC)

I don't think there is any reason for me to post something here for you to read, because you are not going to see it because you never get on wikiversity... Drew_Dollas 05:36, 5 December 2011 (UTC)

0/0/0 ... nothing to grade 1sfoerster 15:04, 5 December 2011 (UTC)

You've certainly done a lot in class and have contributed so much to this project. You just aren't documenting any of it online. You need to keep up with it all the time to keep others informed. It's been nice working with you on this project! Jamorgan3 07:43, 12 December 2011 (UTC)

Well, you have done a good job with the housing for the brushless motor, I wish you could have uploaded some pictures of it to wikiversity. Drew_Dollas 07:47, 12 December 2011 (UTC)

0/0/0 ... nothing to grade 1sfoerster 15:42, 14 December 2011 (UTC)

title: User talk:Ablomme2125/enes100/Glorious3


text:
User talk:Jkim7610/enes100/Glorious3

5/10 points .. no week 0 objectives

It doesn't look like you have anything here for Week 0 or 1. Maybe I'm just early checking it, but make sure you get this done on time. It'll get you a lot of points, as you know. Jamorgan3 04:07, 21 November 2011 (UTC)

Looks like we might have another Austin... nothing on your wiki page... Drew_Dollas 11:20, 21 November 2011 (UTC)

0/0/0 .. nothing to grade

You definitely have a grasp on what we have to do. You just need to fill in the page with a bit more data. You've got a lot written in your notebook; just try to transfer most of that to your Wiki page. Jamorgan3 04:33, 28 November 2011 (UTC)

That's good that the batteries are charged, we can try to use that now. And once the pinion gear remover comes in, maybe we can actually get something done. Drew_Dollas 06:08, 28 November 2011 (UTC)

Make sure you get your stuff onto your page. I know you definitely have documentation to put here, you just have to make sure you get it there on time. Jamorgan3 05:25, 5 December 2011 (UTC)

Thank you for bringing in those new batteries for us to try out. But you also should get your stuff posted. I hope you do it before Professor Foerster checks. Drew_Dollas 05:39, 5 December 2011 (UTC)

0/0/0 ... nothing to grade, I look for words, if I don't find any, then no grade 1sfoerster 15:06, 5 December 2011 (UTC)

10/10/30 ... 1sfoerster 15:42, 14 December 2011 (UTC)

Interesting research on the Brushless motors. Also, your design looks like something that would be cool to try. The only thing is, I feel like it will not be able to move forward very fast, but I may be wrong, that is just my initial reaction. Also, it looks like it will have more friction on the bottom compared to the hovercraft we have right now since yours will not have that air cushion under it like ours does. Drew_Dollas 07:31, 12 December 2011 (UTC)

I agree with Andrew. The idea is interesting, but until we try it I can't be sure how well it will work. You've done a lot in the four weeks you've been on this project and you've contributed well to the group. I've enjoyed working with you! Jamorgan3 07:44, 12 December 2011 (UTC)

title: User talk:Jkim7610/enes100/Glorious3


text:
User talk:Epropplerp/enes100/spsonic

this was from sept.

title: User talk:Epropplerp/enes100/spsonic


text:
User talk:Dpatel5391/enes100/Helicopter 3

10/10 .. good job 1sfoerster 22:53, 15 November 2011 (UTC)

You are doing great job with the programming and we are really close to get our project finish if we get out design ready and make sure you upload you week 1. Spatel5040 18:44, 20 November 2011 (UTC)

Hey Deep, I Hope you remember to do you your week 1. We are very close in completing the project. Just have to test the propellers on the see- saw gimble.Dkirby7518 04:56, 21 November 2011 (UTC)

Keep doing a pushing the project forward with the arduino. Remember to do week 1 too. Dammy125 12:10, 21 November 2011 (UTC)

10/10/80 ... 1sfoerster 21:06, 21 November 2011 (UTC)

0/0/0 .. nothing to grade

Try keeping up with the arduino work you have done for week 1 because its great work!!! Dammy125 12:10,3 December 2011 (UTC)

Great job with updating your webpage. You put up codes and video.Im impressed.Dkirby7518 17:36, 5 December 2011 (UTC)

10/10/80 wow ! 1sfoerster 19:24, 5 December 2011 (UTC)

You are doing a great work in the class keep up the good work and make sure you update your week 4 report Spatel5040 21:58, 11 December 2011 (UTC)

10/10/80 ... 1sfoerster 17:04, 14 December 2011 (UTC)


text:
User talk:Spatel5040/enes100/Helicopter 3

5/10 ... no week 0 todo 1sfoerster 22:54, 15 November 2011 (UTC)

Good job on uploading pictures that could possibly help me with the design of the helicopter. Anything help helps.Dkirby7518 04:59, 21 November 2011 (UTC)

Sunny, you've really done a great job in uploading the pictures.Dpatel5391 07:50, 21 November 2011 (UTC)

Great job!!! You have been doing a great job uploading the picture. Dammy125 12:10, 21 November 2011 (UTC)

10/10/80 ... wow!! I never thought that posting all these pictures would be useful, but it looks exhaustive 1sfoerster 21:08, 21 November 2011 (UTC)

0/0/0 ... nothing to grade 1sfoerster 14:58, 28 November 2011 (UTC)

Good job. The more you more about programmming the more its useful the team.Dkirby7518 17:37, 5 December 2011 (UTC)

10/10/0 ... nothing that pushes the project forward 1sfoerster 19:28, 5 December 2011 (UTC)

remember to come to class on Tuesday for poster Dpatel5391 04:43, 12 December 2011 (UTC)

10/10/10 ... not improving/referring to existing tutorial 1sfoerster 17:05, 14 December 2011 (UTC)


text:
User talk:Dammy125/enes100/Helicopter 3

5/10 .. no week 9 todo 1sfoerster 22:55, 15 November 2011 (UTC)

Figuring out the motors is vital so we start testing. Way to step up and push the project forward.Dkirby7518 05:01, 21 November 2011 (UTC)

10/10/10 .. you just posted pictures of dc motors ... the quad copter needs brushless outboard motors ... or inboard .. these are the two you need to research ... I am working up a background introduction to them in wikibooks 1sfoerster 21:10, 21 November 2011 (UTC)

0/0/0 ... nothing to grade 1sfoerster 14:58, 28 November 2011 (UTC)

Great research on the motors. Next we will be able to incorprate what you not to the helicopter.Dkirby7518 17:39, 5 December 2011 (UTC)

10/10/80 ... very good 1sfoerster 19:26, 5 December 2011 (UTC)

remember to come to class on Tuesday for poster Dpatel5391 04:43, 12 December 2011 (UTC)

10/10/10 ... ???? what was accomplished that pushed the project forward? did you create/update a tutorial? 1sfoerster 17:08, 14 December 2011 (UTC)

title: User talk:Dammy125/enes100/Helicopter 3


text:
User talk:Ddkirby7518/enes100/Helicopter 3

10/10 ... week 0 grading 1sfoerster 22:55, 15 November 2011 (UTC)

Week1
keep up the good work. You have been pushing the project better then before.Dammy125 12:10, 21 November 2011 (UTC)

10/10/50 .. keep up the work 1sfoerster 21:11, 21 November 2011 (UTC)

0/0/0 .. nothing to grade 1sfoerster 14:59, 28 November 2011 (UTC) You are doing really great job with uploading pictures and designing everything make sure you upload you week 3 report. Spatel5040 21:45, 4 December 2011 (UTC)

Good job with the design. I really like you pictures Dammy125 12:10,4 December 2011 (UTC)

Congrats! you have completed designing the balance system. I need your help in designing the gimble system for the arduino system to differentiate between accelerometer and gyro. You can look through my Week3 page, so you get to understand the topic. Dpatel5391 14:34, 5 December 2011 (UTC)

10/10/80 ... very good 1sfoerster 19:27, 5 December 2011 (UTC)

Good job!!! Dammy125 1:10,10 December 2011 (UTC)

Good documentation!Dpatel5391 04:42, 12 December 2011 (UTC)

remember to come to class on Tuesday for posterDpatel5391 04:42, 12 December 2011 (UTC)

10/10/20 ... good job pickingup on the gimbel


text:
User talk:Rhorton4549/enes100/Helicopter

5/10 .. no week 0 tasks 1sfoerster 22:56, 15 November 2011 (UTC)

Awesome job for doing the team page. WFalak 15: 13 20 November 2011 (UTC) Amazing work Truongdat120891 04:33, 21 November 2011 (UTC)

Great job finding out that the battery of the drone needs to be changed and changing it. Maybe we can work together and establish a better and more stable connection between the assigned remote and the drone.--Felhariri3680 06:08, 21 November 2011 (UTC)

10/10/30 ... 1sfoerster 20:01, 21 November 2011 (UTC)

Good job with Flight testing. WFalak 12:02 AM 28 November, 2011

10/0/10 .. good video .. no commenting on other's pages, no plans for week 3 1sfoerster 14:15, 28 November 2011 (UTC)

Great job.. looks like the set up Mr. Foerster showed us with the fan.. im guessing the next step would be to set up a switch of some sort.--Felhariri3680 02:12, 5 December 2011 (UTC)

Good job with mounting. WFalak 12: 31 am Dec 5, 11 very interesting. Good job, i was having a hard time tried to mount it up also. But i found another way to mount it is to mount it on an empty box. Truongdat120891 06:35, 5 December 2011 (UTC)

10/10/50 ... good job 1sfoerster 19:39, 5 December 2011 (UTC)

Good work with mounting motor. WFalak 11:35 AM Dec 12, 11 (UTC)

That look really nice, the video was good Truongdat120891 20:15, 12 December 2011 (UTC)

10/10/50 ... 1sfoerster 17:20, 14 December 2011 (UTC)


text:
User talk:Truongdat120891/enes100/Helicopter

5/10 .. no week 0 tasks

Good job for helping us to start the project. WFalak 15: 15 20 November 2011 (UTC)

Good work this week getting the project started. Rhorton4549 21:52, 20 November 2011 (UTC)

Maybe you and WFalak should come together and share your experience in working with the arduino! You should consider documenting the connections made between the arduino and the motor. Other than that good job!

10/10/80 .. good job 1sfoerster 20:02, 21 November 2011 (UTC)

Nice work getting the motor running. WFalak 12:03 AM 29 November, 2011

10/5/80 .. good work .. video shows that the motor is not mounted ... the wires will break if you continue to test without mounting on a board, ... comment on team mates work 1sfoerster 14:17, 28 November 2011 (UTC)

Good job with drone test. WFalak 12: 32 am Dec 5, 11

Your mounting job looks better than mine. We can compare on Monday. Rhorton4549 09:23, 5 December 2011 (UTC)

10/10/20 ... The motor came with mounting hardware. Calderon from another group successfully mounted the motor. It is in class. 1sfoerster 19:41, 5 December 2011 (UTC)

Good job with finding wiring link. WFalak 11:37 AM December 12, 11

Good progress. The power source is always tricky. Rhorton4549 18:34, 12 December 2011 (UTC)

10/10/50 ... 1sfoerster 17:22, 14 December 2011 (UTC)


text:
User talk:Felhariri3680/enes100/Helicopter

5/10 .. no week 0 grading

Good input for project start. Rhorton4549 21:52, 20 November 2011 (UTC)

Good work for bringing up the safety issues. WFalak 10: 55 21 November 2011 (UTC)

10/10/30 ... the guards are going to cripple the quad copter .. they are heavy and restrict air flow ... 1sfoerster 20:04, 21 November 2011 (UTC)

What is needed is a net seen in a lot of quad copter videos .. need to build a cage that we can deploy .. outside ... to fly in.

Good luck with the safety procedure. WFalak 12: 04 AM 29 November, 2011

0/0/0 ... nothing to grade

Good job with the safety net. WFalak 12:34 am Dec 5, 11 Very nice. I was having some problem about the drone, when it got out of balance from the dancing, it run straight to me and give me two or three cuts. Its really dangerous and thank you for doing this.Truongdat120891 06:38, 5 December 2011 (UTC)

Good work on getting measurements for the safety net. Definitely needed as the drone is not easy to fly. Rhorton4549 09:22, 5 December 2011 (UTC)

10/10/30 ... good job .. will order the fish net ... next step is to setup storage system and pvc pipe system that can be configured in different ways ?? 1sfoerster 19:42, 5 December 2011 (UTC)

Nice job with finding the dimensions. WFalak 11:39 AM Dec 12, 11 Nice work Truongdat120891 20:16, 12 December 2011 (UTC)

10/10/10 ... need prices ...estimates ... 1sfoerster 17:23, 14 December 2011 (UTC)


text:
User talk:Wfalak/enes100/Helicopter

5/10 .. no week 0 task 1sfoerster 22:58, 15 November 2011 (UTC)

Nice work on getting the arduino working. Rhorton4549 21:53, 20 November 2011 (UTC) good workTruongdat120891 04:33, 21 November 2011 (UTC)

Extremely talented with the arduino keep up the good work. Maybe this way we can have more control features!--Felhariri3680 06:09, 21 November 2011 (UTC)

10/10/20 .. the rc controller in your picture should be replaced by an arduino 1sfoerster 20:06, 21 November 2011 (UTC)

10/10/0 ... "we" was used .. not clear who your partner was or what your role in the operation was .. mentioned a link but could not find the link 1sfoerster 14:19, 28 November 2011 (UTC)

Good job.. yeah for the wire problem you'll find many lying around class somewhere.--Felhariri3680 02:08, 5 December 2011 (UTC) You can tried to scoulder them together like i did. Check out my first week set up. Truongdat120891 06:37, 5 December 2011 (UTC)

Sorry about the Arduino problems. I can show you my wire setup on Monday. Rhorton4549 09:24, 5 December 2011 (UTC)

0/0/0 ... nothing to grade 1sfoerster 19:43, 5 December 2011 (UTC)

Good work on the motor mount. As with Truong, the power source is always tricky. You have to find the right balance of voltage and amperage. Rhorton4549 02:52, 12 December 2011 (UT good job69.255.200.167 20:12, 12 December 2011 (UTC)

10/10/50 ... 1sfoerster 17:27, 14 December 2011 (UTC)

title: User talk:Wfalak/enes100/Helicopter


text:
User talk:Kjaved373/enes100/rubberband gun reloaded

10/10 .. week 0 1sfoerster 23:03, 15 November 2011 (UTC)
 * You helped on improving the prototype with me and even stood around for multiple tests on the projects and discussion for the next week's plan. Thanks to you, the amount time that could've been spent on the projects decreased a lot with your help along with better and more improvements with the shorter time spent. Anton1102 10:19PM 11/20/11

 * Helped with the improvement of our prototype. Your current string system was a nice/simple idea when firing our rubber bands however lets try moving forward in implementing a more automatic trigger system.--Felhariri3680 04:15, 21 November 2011 (UTC)

10/10/30 ... 1sfoerster 20:12, 21 November 2011 (UTC)
 * Did no work whatsoever and kept on playing soccer with other classmates. I told him to stop disrupting the construction but showed no will to stop. All he did was taking pictures at the end of the class and clean up the unused pieces. Anton1102 7:25PM, 27th November 2011

0/0/0 ... nothing to grade 1sfoerster 14:25, 28 November 2011 (UTC)
 * Helped with the ideas and improvements with the gun for this week. I hope to see a full motivation to finish this project next week and I will need all my team members' help. Anton1102 7:19PM 4th December 2011

10/10/10 .. not clear what you are doing and what Kang is doing, no transparency 1sfoerster 19:52, 5 December 2011 (UTC)

 * Stood around the construction and helped out when I needed help especially on the parts where I lacked the skills to finish or refine. The project progressed fast with his help and assistants. Anton1102 10:47PM 11th December 2011

0/0/0 ... nothing to grade 1sfoerster 17:30, 14 December 2011 (UTC)


text:
User talk:Anton1102/enes100/rubberband gun reloaded

10/10 ... week 0 grading 1sfoerster 23:04, 15 November 2011 (UTC)

It was amazing how you had a working prototype at the beginning of this week, need more brilliance like this from you. --Kjaved373 00:45, 21 November 2011 (UTC)

Great job on the prototype.. maybe we can get rid of the second base on the other side of the gun so we can easily move the gun up and down; making our gun more versatile.--Felhariri3680 04:13, 21 November 2011 (UTC)

you received 10/10/80 last week .. looks like I did not post it 1sfoerster 14:27, 28 November 2011 (UTC)

10/10/80 .. good job 1sfoerster 14:26, 28 November 2011 (UTC)

Helped a lot with improving on the bases and implementing the handle. We wouldn't be able to construct this gun without his pieces. --Kjaved373 22:46, 3 December 2011 (UTC)

10/10/80 .. good job 1sfoerster 19:52, 5 December 2011 (UTC)


text:
User talk:Thanson2045/enes100/Boating

5/10 .. no week 0 task 1sfoerster 23:06, 15 November 2011 (UTC)

0/0/0 .. nothing to grade

0/0/0 .. nothing to grade

10/10/80 ... good job 1sfoerster 15:17, 5 December 2011 (UTC)

0/0/0 ... nothing to grade 1sfoerster 16:06, 14 December 2011 (UTC)

title: User talk:Thanson2045/enes100/Boating


text:
User talk:Asatya/enes100/Boating

10/10 .. week 0 1sfoerster 23:07, 15 November 2011 (UTC)

0/0/0 ... week 1 .. nothing to grade 1sfoerster 15:45, 21 November 2011 (UTC)

0/0/0 ... week 2 .. nothing to grade 1sfoerster 13:53, 28 November 2011 (UTC)

0/0/0 ... nothing to grade 1sfoerster 15:18, 5 December 2011 (UTC)

0/0/0 ... nothing to grade 1sfoerster 16:07, 14 December 2011 (UTC)

title: User talk:Asatya/enes100/Boating


text:
User talk:Baminnick/enes100/Distillation

10/10 ... week 0 grading 1sfoerster 23:09, 15 November 2011 (UTC)
 * Nice job with the setup hopefully we can get to the distillation this week. Zchill 20:41, 20 November 2011 (UTC)

 * I feel like we all tried to do same thing this week, I was able to come up some ideas that we should share in class or between us. your set up is missing few things as far as I observe it from your picture. you need to have two temperature at least.. but still good job put it together.. Alex 10:53, 20 November 2011 (UTC)

10/10/30 .. good job 1sfoerster 15:47, 21 November 2011 (UTC)

 * I have found that you don't need any points, there for no work but still if you want to comment or add little bits here and there, you are welcome to.. Alex 11:53, 27 November 2011 (UTC)

0/0/0 ... 1sfoerster 13:54, 28 November 2011 (UTC)

0/0/0 ... nothing to grade 1sfoerster 15:24, 5 December 2011 (UTC)


text:
User talk:Ayapici/enes100/Distillation

5/10 .. nothing for week 0 listed 1sfoerster 23:10, 15 November 2011 (UTC)

10/10/30 ... good job 1sfoerster 15:47, 21 November 2011 (UTC)

10/10/50 ... get the theory, measurement of success process documented 1sfoerster 13:55, 28 November 2011 (UTC)

Nice job with this week, the chart is a little hard to read on week 3 though. Zchill 14:57, 5 December 2011 (UTC)

10/10/80 ... great job 1sfoerster 15:22, 5 December 2011 (UTC)

Sorry about the late finish to the project page and thanks for updating the story part on the team page, I am adding my pictures and will edit and add what I can to the team page Zchill 14:08, 13 December 2011 (UTC)

 * The image, File:Distillation setup.gif was copyvio, deleted on Commons. I requested a copy of the file, and when I had it, I could see that it was taken from this web page, though it was uploaded to Commons as "own work." Unless Ayapici is Stretton, I don't think so. While we could possibly place the image in the resource that was created, it isn't necessary there, becuase there is another diagram of a distillation setup. --Abd (discuss • contribs) 23:52, 9 March 2015 (UTC)

title: User talk:Ayapici/enes100/Distillation


text:
User talk:Zchill/enes100/Distillation

5/10 .. you started to describe what you were going to do .. needed to finish 1sfoerster 23:11, 15 November 2011 (UTC)

Week 1 Peer Review

 * Don't forget to keep posting the work you've completed for this project so far. Baminnick 21:07, 18 November 2011 (UTC)
 * my next is going to be making my home made perfume like that, hopefully you will tell us more in class about the shopping list...Alex 10:53, 20 November 2011 (UTC)

10/10/30 ... perfect 1sfoerster 15:46, 21 November 2011 (UTC)

 * Keep adding more information and some pictures if you can, but I think we are in a good shape this week, we can push this further...Alex 11:53, 27 November 2011 (UTC)

10/10/10 ... what clean up? document everything .. go through the documentation in engsoft, clean it up and put it on wikiversity! 1sfoerster 13:57, 28 November 2011 (UTC)

 * you have really worked hard this week most of all you have put some shown your work in documentation that we have done together.. good job buddy, and now we have to work on team page to complete the project.. hopefully..Alex 08:44 am, 05 December 2011 (UTC)

10/10/80 ... great job 1sfoerster 15:23, 5 December 2011 (UTC)

 * I have been looking at the wiki page to the last minute, and have not see any work done from you to add some details into the team page, you have said that you would add the story and summary for the perfume project, but did not see anything from you... Alex 08:44 am, 12 December 2011 (UTC)

 * I am glad you were able to finish it eventually to get some more points, It looks much better now thank you very much... Alex 11:44 am, 13 December 2011 (UTC)

title: User talk:Zchill/enes100/Distillation


text:
User talk:Zblaha2768/enes100/ComboLockPick

10/10 .. week 0 1sfoerster 23:15, 15 November 2011 (UTC)

I like that you brought in a combination lock and tried to open it to see the parts. Nridings2

10/10/0 .. nothing really gained .. verbal description does not help illustrate the insides of the lock .. better off with pictures of what you were left with and then a video 1sfoerster 20:32, 21 November 2011 (UTC)

10/10/80 ... great job 1sfoerster 14:45, 28 November 2011 (UTC)

10/10/80 ... great job, I did not program the arduino ... just used the default stepper test example 1sfoerster 18:43, 5 December 2011 (UTC)

10/10/10 ... 1sfoerster 16:46, 14 December 2011 (UTC)


text:
User talk:Bmart14/enes100/3rdEscher

10/10 ... week 0 grading 1sfoerster 23:17, 15 November 2011 (UTC) I know you started on the google sketch up so if you can send me the exact measurements that would be great. (Inmookchung27 17:02, 17 November 2011 (UTC))

10/10/30 ... work on a sketch up tutorial for more points ... or build one from other peoples work as you learn it 1sfoerster 20:39, 21 November 2011 (UTC)

This week i will send you the list of pieces i need measurements of, and if you send me a email of the measurements that would be great. Once i have the measurements documented we can start on the new escher project.(Inmookchung27 17:10, 22 November 2011 (UTC))

10/10/10 ... pictures uploaded did not work ... can get points for documenting a solution, problem points for figuring out what the problem is .. 1sfoerster 14:49, 28 November 2011 (UTC) i know you have been working on the sketch up of the project so if you can send me the measurements of the new project that would be great. Also we can meet up this weekend so you can see what the actual project looks like.(Inmookchung27 17:30, 1 December 2011 (UTC))

10/10/30 ... more points if have links to the actual google sketchup files ... put them in google docs, make the docs public and then link 1sfoerster 18:48, 5 December 2011 (UTC)

well this escher project did not take long to make so i found another project we can start on. I will send you a link to it and you can take a look at it, and maybe you can start drawing it up on google sketch. (Inmookchung27 15:03, 8 December 2011 (UTC))

10/10/30 ... 1sfoerster 16:49, 14 December 2011 (UTC)

title: User talk:Bmart14/enes100/3rdEscher


text:
User talk:Inmookchung27/escher3

10/10 .. week 0 grading

Everything seems to be going along smoothly, I moved on to working with Google Sketchup and will show you the drawings (they are also on my wiki page) and over the weekend I will send you some JPEG's of dimensions and what not (Bmart14 18:22, 17 November 2011 (UTC)).

10/10/20 .. need much more obvious documentation of the failure .. why things don't fit. 1sfoerster 20:37, 21 November 2011 (UTC)

In week two, i finished up my dimensions, so tell me which pieces you need dimensions for and then we can move on to the next project (Bmart14 17:10, 22 November 2011 (UTC))

10/10/10 .. good link to another project idea .. no links to a google doc upload of the sketch you have been working on ... nothing to leverage 1sfoerster 14:48, 28 November 2011 (UTC)

In week three, I finished all the drawings for the uphill illusions on google sketchup. I can send you dimensions if you need some to push the project forward, and it should help you with some problems.(Bmart14 17:31, 1 December 2011 (UTC))

10/10/0 ... vague report, implied a lot more was done in class 1sfoerster 18:46, 5 December 2011 (UTC)

In week 4, i like the progress done and the pictures uploaded. I recently just posted the google sketch-up link for the drawing in wik, so the file is there for everyone, including you, to play around with as long as they have google sketch-up. (Bmart14 16:49, 6 December 2011 (UTC))

10/10/80 ... 1sfoerster 16:49, 14 December 2011 (UTC)

title: User talk:Inmookchung27/escher3


text:
User talk:Cwoo4792/enes100/Robot Arm 2

10/10 .. 1sfoerster 23:24, 15 November 2011 (UTC)

10/10/80 ... great job 1sfoerster 21:04, 21 November 2011 (UTC)

Week 1 Peer Review

 * Hey Nathan you and Caleb did a great job on improving the robot i was thinking a could create my own in order to improve it even more let me know what you guys think about that idea. TFrancis3580 16:03, 21 November 2011 (UTC)

10/10/80 ... great job 1sfoerster 14:56, 28 November 2011 (UTC)

10/10/80 ... great job 1sfoerster 19:21, 5 December 2011 (UTC)

Week 4 Review

 * Great job on the robotic arm it looks fantastic with the electronic component added to it. TFrancis3580 12:35, 12 December 2011 (UTC)

title: User talk:Cwoo4792/enes100/Robot Arm 2


text:
User talk:TFrancis3580/enes100/Robot Arm 2

Bold text10/10 .. 1sfoerster 23:25, 15 November 2011 (UTC)
 * Hey Tim, I wasn't really able to work on anything with you this week because you left too early. If you're looking for something to do you could try to create a second Robot arm or help me create a way to control the one we have. Cwoo4792 00:31, 21 November 2011 (UTC)

10/10/0 ... nothing that pushed the project forward ... where the links to the stuff you uploaded ? 1sfoerster 21:05, 21 November 2011 (UTC)

 * Hey Tim, you can find multiple things to do for this project. You could keep trying to make a second robot arm, try to make an other one that is of a different design, of just make multiple end effectors of different or similar designs. Cwoo4792 21:45, 23 November 2011 (UTC)

0/0/0 ... nothing to grade 1sfoerster 14:55, 28 November 2011 (UTC)

 * Hey Tim, I didn't get a chance to really talk to you this week but you can keep working on a different end effector if you like. Remember though that you don't get points for successfully creating one but by documenting every step. You can take pictures of what you have, talk about the success you've had, and the problems you have. You can still get major points but you get what you put in.Cwoo4792 00:20, 4 December 2011 (UTC)

0/0/0 ... nothing to grade 1sfoerster 19:21, 5 December 2011 (UTC)

 * Hey Tim, Good job with that robot hand you created, sorry you didn't have all the pieces you needed. Make sure you document everything you did and don't forget to post that video to youtube and have the the link on your page. Cwoo4792 20:07, 8 December 2011 (UTC)

10/10/30 .. 1sfoerster 17:03, 14 December 2011 (UTC)


text:
User talk:Npsweet/enes100/Robot Arm

10/10 .. 1sfoerster 23:25, 15 November 2011 (UTC)
 * Hey Nathan, it was cool getting to think of ways to lift and lower the robot arm with you. Hurry up and finish with that tape purge so that you could implement something like it on the robot arm. Cwoo4792 00:37, 21 November 2011 (UTC)

Week 1 Peer Review

 * Hey Nathan you and Caleb did a great job on improving the robot i was thinking a could create my own in order to improve it even more let me know what you guys think about that idea. TFrancis3580 16:03, 21 November 2011 (UTC)

0/0/0 ... nothing to grade 1sfoerster 21:05, 21 November 2011 (UTC)

 * Hey Nathan, it was cool getting to try to implement our different ideas to raising and lowering the robot arm with you. Good job making that model screw raising system thingy. Cwoo4792 21:41, 23 November 2011 (UTC)

0/5/0 ... can not tell what you are doing .. not writing on others pages, not deleting instructions ... 1sfoerster 14:54, 28 November 2011 (UTC)

 * Hey Nathan, If you don't think your doing much for the robot arm you could at least post about all the other things you were building in the shop. If you want to do something for the robot arm you could create something to pull the end effector while I work on fitting the front motor on and making a program.Cwoo4792 00:26, 4 December 2011 (UTC)

10/5/10 ... not writing on others pages, not deleting instructions 1sfoerster 19:22, 5 December 2011 (UTC)

 * Hey Nathan, make sure you try to document everything you did on your wiki page even if some of it had nothing to do with the robot arm. Cwoo4792 20:10, 8 December 2011 (UTC)

Week 4 Peer Review
TFrancis3580 12:35, 12 December 2011 (UTC)
 * Great job Nathan on the robotic arm devices they are well thought out and easy to re do for future groups
 * Hey one thing you can try is you can see if the tape purge can be used by the robotic arm or in some fashion.

10/10/10 .. 1sfoerster 17:00, 14 December 2011 (UTC)

title: User talk:Npsweet/enes100/Robot Arm


text:
User talk:RyanPak/enes100/Escher

10/10 ... week 0 grading 1sfoerster 23:32, 15 November 2011 (UTC)

10/10/0 ... nothing that pushed project forward 1sfoerster 20:17, 21 November 2011 (UTC)

0/0/0 .. nothing to grade 1sfoerster 14:45, 28 November 2011 (UTC)

10/10/0 ... make a list of the wood, add the cost, add a drawing .. 1sfoerster 19:54, 5 December 2011 (UTC)

title: User talk:RyanPak/enes100/Escher


text:
User talk:Criveros0248/enes100/Electric Cars v.2

Week Zero
1010 .. week 0 1sfoerster 23:38, 15 November 2011 (UTC)

Week One
Nice work man!! Palluri9407 07:33, 21 November 2011 (UTC)

10/10/50 ... good job ... 1sfoerster 19:04, 21 November 2011 (UTC)

Week Two
10/10/50 ... need close ups of the connections ... or drawings of the wiring ... closeups of the sprockets .. need more documentation than just a report and picture .. or links to the instructions you are following 1sfoerster 14:07, 28 November 2011 (UTC)

Week Three
good job..but try explaining more about your work on wikiversity and thanks for the help on the braking system..Palluri9407 04:03, 5 December 2011 (UTC)

10/10/80 ... great job ... 1sfoerster 19:31, 5 December 2011 (UTC)

Week Four
10/10/80 .. 1sfoerster 17:12, 14 December 2011 (UTC)


text:
User talk:Mbaig7172/enes100/engine

Week 0
5/10 .. no task for week 0 1sfoerster 23:42, 15 November 2011 (UTC)

Week 1
I like the concept that you drew up in class. If it works let us know. Jeffrey Lloyd 20, November 2011 19:30 (UTC)

10/10/30 ... good start 1sfoerster 19:57, 21 November 2011 (UTC)

Week 2
0/0/0 .. nothing to grade

Week 3
Good work on the graphic. Jeffrey Lloyd 3 December 2011 10:30 (UTC) 10/10/10 ... more points if you link to the google sketchup drawing that has been uploaded to google docs 1sfoerster 19:36, 5 December 2011 (UTC)

10/10/10 ... link to a picture rather than a drawing 1sfoerster 17:16, 14 December 2011 (UTC)

title: User talk:Mbaig7172/enes100/engine


text:
Engineering Projects/Coanda/Howard Community College

Howard Community College is starting this project in the fall of 2011. The goal is to give those that program and/or game a very specific programming project.
 * /Spring2012/
 * /Fall2011/


text:
Engineering Projects/Coanda/Howard Community College/Fall2011

/502_Coanda/


text:
Engineering Projects/Coanda/Howard Community College/Fall2011/502 Coanda

Problem Statement
Put the last negotiated problem statement with the instructor or client of the project here.

Summary
Put an overall, one paragraph summary here with links to the team weekly reports.

Poster
Put a graphic in wikimedia, include the graphic here or link to it here. The graphic should be suitable for creating a traditional project poster.

Story
Tell a story of the project. Describe how split up, what the obstacles were, what testing was done, what informal decisions were made, what assumptions were made, what the results were. This is a longer version of the summary with links to all the details collected associated with the project. These links could be to software, links to videos, links to project pages with pictures, etc. Think of the story as a summary of the team weekly reports on one long page rather than a short paragraph like the summary.

Decision List
List all formal decisions made with links to their documentation such as a decision tree or decision matrix.

Material List
Figuring out what to purchase, what to build, what everything costs is a huge part of engineering. Typically there is a list of materials in stock, materials that are ordered, materials that should be ordered next time there is money, materials that have not been fully justified. These issues are part of healthy management of the engineering lab but are associated with a particular college. The detail needs to be published in this "Done" form. However in the project root, just a list of materials is necessary.

Software List
Installing and learning different software packages is part of most engineering project just like the materials list.

Time
Time estimates and actual time consumed measurements helps justify salaries (grades). The only way to gain respect for estimated project time and costs is to practice.

Tutorials
Most projects consist of making instructions to jump start the next team, shrink the learning of tools and software to the minimum, advice on where to purchase materials, how to assemble, etc. Tutorials modified or created are described here with links.

Next Steps
If this is not filled out, the next team may have to repeat each of your steps just to figure out what the next step is. It is best to write this immediately at the end of the project while creating the summary, poster, presentation, and story.


text:
User:Dpatel5391/enes100/Coanda

Link to project Coanda team page.

Give instructor top 3 project choice list
Typically the instructor picks teams. Students send the instructor their top 3 choices. The project choices are typically those found at Category:General_Engineering_Projects. The instructor tries to put students in the project of their choice. Put your top three choices here after they are used to assign you to this project. Create a link to the project root and to where your team will be working.

Write problem statement
Look through the existing problem statements. Find something not yet done on the project. Create a problem statement for it. Think of a new subsystem that needs to be built for the project. The goal is something simple, possible, for zero dollars.

Assign Task1
Tasks are typically done over the weekend. They are documented during the week, presented during the week and the next weekends work is negotiated during the week. Week 0 is the week that task 1 is negotiated. Record your individual task here. Plan on working on it during the weekend between week0 and week1.

Compare actual work done to Task1
Rationalize differences

Week1 Narrative
Upload photos to wikimedia. Upload video to youtube. Convert all spreadsheets, documents, and presentations to wiki format and create wiki subpage of your page for each of them. Link to them here in a narrative that tells a story. High light the problems (engineering problems) you had and how you solved them.

Week1 Peer Review
Go to each team mates weekly summary wiki page. Read their activities and narrative. Then go the associated discussion page. Say something positive on this page. Try some constructive criticism. Add your name and a signature ~ by entering four tildes in a row to create a time and date stamp. Create a new category if another team mate has already commented here.

Assign Task2
Record what you are planning on doing for the team during the weekend between week1 and week2 of the project here.

Compare actual work done to Task2
Rationalize differences

Week2 Narrative
Upload photos to wikimedia. Upload video to youtube. Convert all spreadsheets, documents, and presentations to wiki format and create wiki subpage of your page for each of them. Link to them here in a narrative that tells a story. High light the problems (engineering problems) you had and how you solved them.

Week2 Peer Review
Go to each team mates weekly summary wiki page. Read their activities and narrative. Then go the associated discussion page. Say something positive on this page. Try some constructive criticism. Add your name and a signature ~ by entering four tildes in a row to create a time and date stamp. Create a new category if another team mate has already commented here.

Assign Task3
Record what you are planning on doing for the team during the weekend between week2 and week3 of the project here.

Compare actual work done to Task3
Rationalize differences

Week3 Narrative
Upload photos to wikimedia. Upload video to youtube. Convert all spreadsheets, documents, and presentations to wiki format and create wiki subpage of your page for each of them. Link to them here in a narrative that tells a story. High light the problems (engineering problems) you had and how you solved them.

Week3 Peer Review
Go to each team mates weekly summary wiki page. Read their activities and narrative. Then go the associated discussion page. Say something positive on this page. Try some constructive criticism. Add your name and a signature ~ by entering four tildes in a row to create a time and date stamp. Create a new category if another team mate has already commented here.

Assign Task4
Record what you are planning on doing for the team during the weekend between week3 and week4 of the project here.

Compare actual work done to Task4
Rationalize differences

Week4 Narrative
Upload photos to wikimedia. Upload video to youtube. Convert all spreadsheets, documents, and presentations to wiki format and create wiki subpage of your page for each of them. Link to them here in a narrative that tells a story. High light the problems (engineering problems) you had and how you solved them.

Week4 Peer Review
Go to each team mates weekly summary wiki page. Read their activities and narrative. Then go the associated discussion page. Say something positive on this page. Try some constructive criticism. Add your name and a signature ~ by entering four tildes in a row to create a time and date stamp. Create a new category if another team mate has already commented here.

Complete Project Page
Follow the "project done" format.

Start Next Project Week0 activities
During this week you will perform the week0 activities of the next project.

title: User:Dpatel5391/enes100/Coanda