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<channel>
 <title>iMechanica - Blog entry - Comments</title>
 <link>http://imechanica.org</link>
 <description>Comments for &quot;Blog entry&quot;</description>
 <language>en</language>
<item>
 <title>Research Paper Writing Skills</title>
 <link>http://imechanica.org/node/2771#comment-7703</link>
 <description>&lt;p&gt;
Despite the illusion, the research-paper writing process (as with any&lt;br /&gt;
writing process) is quasi-linear at best. Follow the green navigation&lt;br /&gt;
bar on the left from top to bottom to follow the nine major steps in writing&lt;br /&gt;
a research paper, or if you&amp;#39;re working on a particular step, click on&lt;br /&gt;
that step to jump ahead in the process.
&lt;/p&gt;
&lt;p&gt;
The entire process will require a lot of hard work on your part, but&lt;br /&gt;
the results will be more than satisfying if you give it your best. In&lt;br /&gt;
the end, you&amp;#39;ll have passed an important &amp;quot;write of passage&amp;quot; &amp;lt;grin&amp;gt;&lt;br /&gt;
in your academic career and picked up a heap of useful skills along the&lt;br /&gt;
way.
&lt;/p&gt;
&lt;p&gt;
Though we&amp;#39;ve laid the process out step by step, the hypertext capability&lt;br /&gt;
of the Web allows you to rewind and fast-forward at your own ease, pace,&lt;br /&gt;
and convenience. So for a picture of what the process will &lt;em&gt;really&lt;/em&gt;&lt;br /&gt;
end up being like, see Cleveland State University Writing Center&amp;#39;s map&lt;br /&gt;
of the writing process. Remember that our OWL&lt;br /&gt;
tutors are around to help you at any stage of the process. Email them&lt;br /&gt;
with any questions that you may have.
&lt;/p&gt;
&lt;p&gt;
Now take a deep breath and click on Genre. The&lt;br /&gt;
journey&amp;#39;s about to begin.
&lt;/p&gt;
&lt;p&gt;
For more&amp;nbsp; &lt;a href=&quot;http://www.cheap-essays.net/&quot;&gt;&lt;span&gt;cheap essay&lt;/span&gt;&lt;/a&gt;
&lt;/p&gt;
&lt;br class=&quot;clear&quot; /&gt;</description>
 <pubDate>Thu, 07 Aug 2008 06:26:56 -0400</pubDate>
 <dc:creator>researchpaperwriting</dc:creator>
 <guid isPermaLink="false">comment 7703 at http://imechanica.org</guid>
</item>
<item>
 <title>More Effective Tips For Research Paper Writing</title>
 <link>http://imechanica.org/node/2771#comment-8463</link>
 <description>&lt;p&gt;Getting Started&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;br /&gt;
* Prepare yourself for the custom writing process: decide how much time&lt;br /&gt;
you may dedicate to the work, arrange your personal time-table and&lt;br /&gt;
stick to it. Be ready to work on a regular basis, working by fits and&lt;br /&gt;
starts won&amp;rsquo;t do any good for your research papers. Give yourself enough&lt;br /&gt;
time to collect the required material.&lt;br /&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp; * Choose a topic that&lt;br /&gt;
will involve you in the writing process completely, it should be&lt;br /&gt;
original, valuable for the science, corresponding to your knowledge and&lt;br /&gt;
skills and challenging too.&lt;br /&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp; * Think over your thesis statement.&lt;br /&gt;
Keep it concrete and precise, narrow or widen it if needed. Make sure&lt;br /&gt;
there is enough available material on it. Ask for your professor&amp;rsquo;s&lt;br /&gt;
advice about your thesis statement&amp;rsquo;s accuracy.&lt;br /&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp; * Find out the&lt;br /&gt;
quality of the materials at your library&amp;rsquo;s disposal and the way these&lt;br /&gt;
materials are referenced. Consult a librarian about the rules set in&lt;br /&gt;
the library.&lt;/p&gt;
&lt;p&gt;Taking Notes&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;br /&gt;
Make use of small colored&lt;br /&gt;
cards. The color code will help you differentiate the numerous ideas of&lt;br /&gt;
your research. Write all annotated bibliography information in the way&lt;br /&gt;
you are going to do it in your research paper, thus you will have&lt;br /&gt;
footnotes and citations already made.&lt;br /&gt;
&amp;nbsp;&lt;br /&gt;
Be accurate while writing down statistics, tables or direct quotes.&lt;br /&gt;
&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Outline&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;br /&gt;
Create an outline of your research paper. This will be a shortened form of your research papers:&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;br /&gt;
* Expand your thesis statement to a paragraph, analyze the purpose of&lt;br /&gt;
your work and the ways to achieve it. This will be your introduction.&lt;br /&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;br /&gt;
* Then propose the most important ideas in the form of headings and&lt;br /&gt;
subheadings. Find a note card to illustrate each one of them. This will&lt;br /&gt;
be the body of your work.&lt;br /&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp; * Ensure you have covered all the points you talked about in the thesis statement, summarize them in your conclusion.&lt;br /&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp; * We warn you: do not neglect the outline writing as its success almost guarantees the success of your research papers.&lt;/p&gt;
&lt;p&gt;Writing Drafts&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;br /&gt;
Make&lt;br /&gt;
several rough drafts and one final draft. Write as much rough drafts as&lt;br /&gt;
possible as it will improve the fluency of your writing language. Make&lt;br /&gt;
all the necessary changes in the rough draft copy: correct grammar&lt;br /&gt;
mistakes, spelling, style and format mistakes. Check paragraphs for&lt;br /&gt;
unity and cohesion.&lt;br /&gt;
&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Proofreading&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;br /&gt;
Do not&lt;br /&gt;
hesitate to check your final draft over and over again. Pay special&lt;br /&gt;
attention to referencing. Put aside your research paper, have some rest&lt;br /&gt;
and do the same.&lt;/p&gt;
&lt;p&gt;For more &lt;span&gt;&lt;a href=&quot;http://www.cheap-term-papers.net/&quot; target=&quot;_blank&quot;&gt;cheap term paper&lt;/a&gt;&amp;nbsp; &amp;amp;&lt;br /&gt;
&lt;/span&gt;&lt;a href=&quot;http://www.cheap-research-papers.com/&quot; target=&quot;_blank&quot;&gt;&lt;span&gt;cheap research paper&lt;/span&gt;&lt;/a&gt;&lt;/p&gt;
&lt;br class=&quot;clear&quot; /&gt;</description>
 <pubDate>Thu, 07 Aug 2008 01:10:02 -0400</pubDate>
 <dc:creator>researchpaperwriting</dc:creator>
 <guid isPermaLink="false">comment 8463 at http://imechanica.org</guid>
</item>
<item>
 <title>Write A Dissertation like A Research Paper</title>
 <link>http://imechanica.org/node/2771#comment-8455</link>
 <description>&lt;p&gt;&lt;font size=&quot;2&quot;&gt;&lt;/p&gt;
&lt;p&gt;
In addition of&amp;nbsp; Jack Smith....I want to added&lt;br /&gt;
more that essay writing is also a part of acedemic writing as like&lt;br /&gt;
research paper.......To improve it we have to follow the following&lt;br /&gt;
listed guidelines:
&lt;/p&gt;
&lt;p&gt;First: Warm up beforehand by writing&lt;br /&gt;
something. We all perform better once we&amp;#39;ve got the rhythm. A smart&lt;br /&gt;
test-taker writes a letter to a friend while waiting for the test to&lt;br /&gt;
begin.&lt;/p&gt;
&lt;p&gt;Second: Get excited. If you can get excited by what you&amp;#39;re saying and&lt;br /&gt;
become energized by your own performance, the way an actor gets&lt;br /&gt;
energized just by being on stage in front of an audience, you&amp;#39;ll have&lt;br /&gt;
won half the battle. As always, the easiest way to excite yourself is&lt;br /&gt;
to say something that matters to you and to write directly to someone&lt;br /&gt;
with the intent of moving him. Of course, many essay test topics make&lt;br /&gt;
this difficult. Do your best, and remember, a car salesman isn&amp;#39;t&lt;br /&gt;
excited by the car; she&amp;#39;s excited by the selling.&lt;/p&gt;
&lt;p&gt;Third: Get down to cases. You may feel you don&amp;#39;t have time, but that&amp;#39;s&lt;br /&gt;
like thinking you&amp;#39;re in such a hurry to leave town that you don&amp;#39;t have&lt;br /&gt;
time to gas up. No idea is worth a hoot without some &amp;quot;for instances,&amp;quot;&lt;br /&gt;
so however short the essay is, you must use them. If your test answer&lt;br /&gt;
is two sentences long, make the first sentence into a thesis and the&lt;br /&gt;
second an example.&lt;/p&gt;
&lt;p&gt;The rest of the universals all have to do with saving time. In essay&lt;br /&gt;
tests time is short, so take a moment to prewrite. The urge is to go&lt;br /&gt;
right to your first paragraph, but two or three minutes spent mapping&lt;br /&gt;
will usually pay for themselves by giving you a sense of direction&lt;br /&gt;
early. Too many writers discover the real direction of their essay on&lt;br /&gt;
page three when it&amp;#39;s too late. (That was four.)&lt;/p&gt;
&lt;p&gt;Fifth: Get on with it. Make sure that your first sentence jumps into&lt;br /&gt;
the heart of things. Skip all essay etiquette like a leisurely&lt;br /&gt;
introduction. Never repeat yourself.&lt;/p&gt;
&lt;p&gt;More Tips Add for College Essay writing...........................................  .................&lt;/p&gt;
&lt;p&gt;Write in your own language. It takes time to translate your thoughts into someone else&amp;#39;s language, and you don&amp;#39;t have time.&lt;/p&gt;
&lt;p&gt;Write only one draft. You won&amp;#39;t have time to rewrite. If you write a&lt;br /&gt;
few lines and then disown them, just cross them out and keep on&lt;br /&gt;
writing. Almost any instructor will accept such messiness.&lt;/p&gt;
&lt;p&gt;Be aware of the time. An unfinished good essay is worse than a finished okay essay.&lt;/p&gt;
&lt;p&gt;Proofread for garbled meaning. You&amp;#39;ll hate to spend the time, but hasty&lt;br /&gt;
writing is often garbled in ways that will crack up your instructor.&lt;br /&gt;
Just skim to see if you wrote the words you intended. It takes less&lt;br /&gt;
time than you think&amp;ndash;perhaps twenty seconds to proofread a thirty-minute&lt;br /&gt;
exam.&lt;/p&gt;
&lt;p&gt;Proofread your mechanics. Look only at your pet problems. Proofread for&lt;br /&gt;
them alone. You don&amp;#39;t have time for a thorough editorial polishing.&lt;/p&gt;
&lt;p&gt;For more &lt;a href=&quot;http://www.custom-dissertations.net/&quot; target=&quot;_blank&quot;&gt;custom dissertation&lt;/a&gt;&lt;a href=&quot;http://www.custom-research-papers.com/&quot; target=&quot;_blank&quot;&gt;&lt;br /&gt;
&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;img id=&quot;progress_88179&quot; src=&quot;http://www.course-notes.org/forum/images/misc/progress.gif&quot; alt=&quot;&quot; /&gt; 	 		 		 		 		 		 		 		 		 		 	 		 			 			 				 				&lt;a name=&quot;:QuickEdit::88179&quot; href=&quot;http://www.course-notes.org/forum/editpost.php?do=editpost&amp;amp;p=88179&quot;&gt;&lt;img src=&quot;http://www.course-notes.org/forum/images/buttons/edit.gif&quot; border=&quot;0&quot; alt=&quot;Edit/Delete Message&quot; title=&quot;Edit/Delete Message&quot; /&gt;&lt;/a&gt;&lt;br /&gt;
&lt;/font&gt;&lt;/p&gt;
&lt;br class=&quot;clear&quot; /&gt;</description>
 <pubDate>Wed, 06 Aug 2008 02:26:26 -0400</pubDate>
 <dc:creator>researchpaperwriting</dc:creator>
 <guid isPermaLink="false">comment 8455 at http://imechanica.org</guid>
</item>
<item>
 <title>hi</title>
 <link>http://imechanica.org/node/3639#comment-8453</link>
 <description>&lt;p&gt;
hi
&lt;/p&gt;
&lt;p&gt;
my name is ASWIN and i am doing my M.Tech 2nd yr in I.I.T.ROORKEE,INDIA.
&lt;/p&gt;
&lt;p&gt;
i am working on application of meshfre techniuqe to elastoplastic materials.
&lt;/p&gt;
&lt;p&gt;
upto now i have developed code in Mat-Lab for elastic.
&lt;/p&gt;
&lt;p&gt;
now i am getting problem with plasticity.can anybody help me in this aspect how to add this plasti relation to elastic p[roblem and how to solve it
&lt;/p&gt;
&lt;p&gt;
please help me so i will be very gratefull to them.
&lt;/p&gt;
&lt;p&gt;
&amp;nbsp;
&lt;/p&gt;
&lt;br class=&quot;clear&quot; /&gt;</description>
 <pubDate>Wed, 06 Aug 2008 02:03:46 -0400</pubDate>
 <dc:creator>aswani006</dc:creator>
 <guid isPermaLink="false">comment 8453 at http://imechanica.org</guid>
</item>
<item>
 <title>Re: Mechanical Design Principles of Ancient Fish Armor</title>
 <link>http://imechanica.org/node/3624#comment-8451</link>
 <description>&lt;p&gt;Thanks Christine for posting this exciting work. The paper reports lots of new insights about the toughening mechanisms. This is very helpful for my current research on biomaterials.&lt;/p&gt;
&lt;br class=&quot;clear&quot; /&gt;</description>
 <pubDate>Tue, 05 Aug 2008 21:38:00 -0400</pubDate>
 <dc:creator>Xiaodong Li</dc:creator>
 <guid isPermaLink="false">comment 8451 at http://imechanica.org</guid>
</item>
<item>
 <title>Re: Uncertainty and Monte Carlo</title>
 <link>http://imechanica.org/node/3466#comment-8449</link>
 <description>&lt;p&gt;
Cosma Shalizi has a nice intro to Monte Carlo methods and pointers to other sources in his Notebooks.&amp;nbsp; See&lt;a href=&quot;http://cscs.umich.edu/~crshalizi/notebooks/monte-carlo.html&quot; target=&quot;_blank&quot;&gt; http://cscs.umich.edu/~crshalizi/notebooks/monte-carlo.html&lt;/a&gt;.
&lt;/p&gt;
&lt;p&gt;
-- Biswajit&amp;nbsp;
&lt;/p&gt;
&lt;br class=&quot;clear&quot; /&gt;</description>
 <pubDate>Tue, 05 Aug 2008 18:18:30 -0400</pubDate>
 <dc:creator>Biswajit Banerjee</dc:creator>
 <guid isPermaLink="false">comment 8449 at http://imechanica.org</guid>
</item>
<item>
 <title>Viscoplasticity in heterogeneous metallic materials</title>
 <link>http://imechanica.org/node/3639#comment-8445</link>
 <description>&lt;p&gt;
This is a recent paper in Mater Sci Rev by David McDowell giving a&lt;br /&gt;
comprehensive review of the viscoplasticity in heterogeneous metallic&lt;br /&gt;
materials. You may find it useful.
&lt;/p&gt;
&lt;p&gt;
&lt;a href=&quot;http://dx.doi.org/10.1016/j.mser.2008.04.003&quot; target=&quot;doilink&quot;&gt;doi:10.1016/j.mser.2008.04.003&lt;/a&gt;
&lt;/p&gt;
&lt;p&gt;
&amp;nbsp;
&lt;/p&gt;
&lt;p&gt;
Regds,
&lt;/p&gt;
&lt;p&gt;
PJ&amp;nbsp;
&lt;/p&gt;
&lt;br class=&quot;clear&quot; /&gt;</description>
 <pubDate>Tue, 05 Aug 2008 17:12:11 -0400</pubDate>
 <dc:creator>PJ Guruprasad</dc:creator>
 <guid isPermaLink="false">comment 8445 at http://imechanica.org</guid>
</item>
<item>
 <title>research process is like arrangement of a dynamic puzzle!</title>
 <link>http://imechanica.org/node/2771#comment-8444</link>
 <description>&lt;p&gt;In fact if we call a result of a research a new thing!. every new thing is product of mutation and combination of two older things, research evolution is just like genetic evelution!. starting with an initial idea, trying to change it or combine it with other ideas, and sometimes choose another idea. first topic is only initial point of this iteration process.   i think this outline is very static. topic of research comes out in the middle of process!.&lt;/p&gt;
&lt;br class=&quot;clear&quot; /&gt;</description>
 <pubDate>Tue, 05 Aug 2008 09:30:27 -0400</pubDate>
 <dc:creator>Roozbeh Sanaei</dc:creator>
 <guid isPermaLink="false">comment 8444 at http://imechanica.org</guid>
</item>
<item>
 <title>Custom Research Paper Writing Short Tips &amp; Guide</title>
 <link>http://imechanica.org/node/2771#comment-8443</link>
 <description>&lt;p&gt;
Every person will have to write a research paper at some point in their lifetime. If you do not know the steps to writing a research paper, then it can become an overwhelming proposition. However if you know the steps to writing a research paper, then the task is not at all daunting. Breaking a research paper into small steps also allows you to focus on one part of the research paper at a time, which will translate into a much better finished product. Here are the steps needed to write a successful research paper:&lt;/p&gt;
&lt;p&gt;Pick a Topic&lt;br /&gt;
Write a Thesis &lt;br /&gt;
Research&lt;br /&gt;
Write an Outline&lt;br /&gt;
Write a Rough Draft&lt;br /&gt;
Make Corrections/Changes&lt;br /&gt;
Write a Final Copy
&lt;/p&gt;
&lt;p&gt;
For more &lt;a href=&quot;http://www.custom-research-papers.com/&quot;&gt;custom research paper&lt;/a&gt;
&lt;/p&gt;
&lt;br class=&quot;clear&quot; /&gt;</description>
 <pubDate>Tue, 05 Aug 2008 06:07:51 -0400</pubDate>
 <dc:creator>researchpaperwriting</dc:creator>
 <guid isPermaLink="false">comment 8443 at http://imechanica.org</guid>
</item>
<item>
 <title>RSS feeds for comments</title>
 <link>http://imechanica.org/node/3623#comment-8442</link>
 <description>&lt;p&gt;
RSS feed for comments is &lt;a href=&quot;http://imechanica.org/crss&quot; title=&quot;http://imechanica.org/crss&quot;&gt;http://imechanica.org/crss&lt;/a&gt;.&amp;nbsp; You can also form many &lt;a href=&quot;http://imechanica.org/node/1112&quot;&gt;other RSS feeds of your own design&lt;/a&gt;.&amp;nbsp; I&amp;#39;m not sure how the hits are counted, and will ask Lesley.
&lt;/p&gt;
&lt;br class=&quot;clear&quot; /&gt;</description>
 <pubDate>Mon, 04 Aug 2008 14:47:41 -0400</pubDate>
 <dc:creator>Zhigang Suo</dc:creator>
 <guid isPermaLink="false">comment 8442 at http://imechanica.org</guid>
</item>
<item>
 <title>Hit numbers and RSS feeds</title>
 <link>http://imechanica.org/node/3623#comment-8441</link>
 <description>&lt;p&gt;Zhigang, I assume there is no way to account for those of us who read iMechanica by RSS feeds?&amp;nbsp; I noticed recently that I had not been to the site in quite a while except via RSS.&amp;nbsp; I also wonder, since I am probably missing out by just reading the posts by RSS, is there an RSS feed for comments?&lt;/p&gt;
&lt;br class=&quot;clear&quot; /&gt;</description>
 <pubDate>Mon, 04 Aug 2008 12:14:09 -0400</pubDate>
 <dc:creator>MichelleLOyen</dc:creator>
 <guid isPermaLink="false">comment 8441 at http://imechanica.org</guid>
</item>
<item>
 <title>Thanks for sharing. </title>
 <link>http://imechanica.org/node/3624#comment-8439</link>
 <description>&lt;p&gt;====================&lt;/p&gt;
&lt;br class=&quot;clear&quot; /&gt;</description>
 <pubDate>Mon, 04 Aug 2008 09:40:30 -0400</pubDate>
 <dc:creator>Hugh H. Wang</dc:creator>
 <guid isPermaLink="false">comment 8439 at http://imechanica.org</guid>
</item>
<item>
 <title>sure</title>
 <link>http://imechanica.org/node/3541#comment-8438</link>
 <description>&lt;p&gt;of cource i &amp;#39;ll post it if I got the key.&amp;nbsp; I e-mail bruce and&amp;nbsp;other fracture group mebers,but no replys. perhaps they are on vacation now.&lt;/p&gt;
&lt;br class=&quot;clear&quot; /&gt;</description>
 <pubDate>Mon, 04 Aug 2008 04:09:16 -0400</pubDate>
 <dc:creator>bulls8862003</dc:creator>
 <guid isPermaLink="false">comment 8438 at http://imechanica.org</guid>
</item>
<item>
 <title>Scientific Computing and</title>
 <link>http://imechanica.org/node/3368#comment-7851</link>
 <description>&lt;p&gt;
Scientific Computing and computing Scientifically.
&lt;/p&gt;
&lt;p&gt;
&amp;nbsp;
&lt;/p&gt;
&lt;p&gt;
Excavation is a typical problem of geotechnical engineering. I didn&amp;#39;t use Abaqus to carry out the FE analysis of thus problems. But I did some with other softwares.&amp;nbsp; It seems that you are using the associated plastic flow rule (i.e. friction angle = dilation angle).
&lt;/p&gt;
&lt;p&gt;If unloaded Mohr-Coloumb soil with zero cohesion subjects to tension, the&amp;nbsp; convergence&amp;nbsp; problem may occure. &lt;/p&gt;
&lt;p&gt;
&amp;nbsp;
&lt;/p&gt;
&lt;p&gt;
Good Luck!
&lt;/p&gt;
&lt;p&gt;
&amp;nbsp;
&lt;/p&gt;
&lt;p&gt;
X. Chen&amp;nbsp;
&lt;/p&gt;
&lt;p&gt;
&amp;nbsp;
&lt;/p&gt;
&lt;br class=&quot;clear&quot; /&gt;</description>
 <pubDate>Sun, 03 Aug 2008 00:42:39 -0400</pubDate>
 <dc:creator>Donald X. Chen</dc:creator>
 <guid isPermaLink="false">comment 7851 at http://imechanica.org</guid>
</item>
<item>
 <title>photosynthesis for photovoltaics</title>
 <link>http://imechanica.org/node/3525#comment-8433</link>
 <description>&lt;p&gt;
&lt;br /&gt;
&lt;a href=&quot;http://www.eetimes.com/news/latest/showArticle.jhtml?articleID=207403402&quot;&gt;http://www.eetimes.com/news/latest/showArticle.jhtml?articleID=207403402&lt;/a&gt;
&lt;/p&gt;
&lt;p&gt;
Researchers claim photovoltaic cell advance
&lt;/p&gt;
&lt;p&gt;
Amir Ben-Artzi&lt;br /&gt;
EE Times Europe&lt;br /&gt;
(04/30/2008 7:59 AM EDT)
&lt;/p&gt;
&lt;p&gt;
&lt;br /&gt;
NETANYA, Israel &amp;mdash; Scientists at the University of Tel Aviv in Israel claim&lt;br /&gt;
they have found a way to construct efficient photovoltaic cells costing at&lt;br /&gt;
least a hundred times less than conventional silicon based devices, and with&lt;br /&gt;
similar or better energy conversion efficiency.&lt;br /&gt;
The reactive element in the researchers&amp;#39; patent pending device is&lt;br /&gt;
genetically engineered proteins using photosynthesis for production of&lt;br /&gt;
electrical energy.
&lt;/p&gt;
&lt;p&gt;
The scientists applied genetic engineering and nanotechnology for the&lt;br /&gt;
construction of a hybrid nano -- bio, solid state device. According to the&lt;br /&gt;
researchers, although using photosynthesis for photovoltaic application is&lt;br /&gt;
not new, their specific technique is the first to enable the production of&lt;br /&gt;
useful photosynthesis-based photovoltaic cells.
&lt;/p&gt;
&lt;p&gt;
The Israeli team is set to challenge others who are using photosynthesis for&lt;br /&gt;
photovoltaic cells, including universities such as Cambridge in the U.K.,&lt;br /&gt;
and Stanford, M.I.T, the U.S. Naval Research Laboratory, and the&lt;br /&gt;
Universities of Tennessee and Arizona in the U.S, and several others.
&lt;/p&gt;
&lt;p&gt;
The researchers suggest existing silicon based photovoltaic cells offer low&lt;br /&gt;
average energy conversion efficiency of 12-14 percent, while their system is&lt;br /&gt;
capable of efficiencies of about 25 percent. They based their photovoltaic&lt;br /&gt;
device on genetically engineered dry proteins photosystem I (PS I),&lt;br /&gt;
encapsulated in solid state substrate bottom metal and a top transparent&lt;br /&gt;
electrode.
&lt;/p&gt;
&lt;p&gt;
They also claim that PS I generates a stable charge separation in 200 ns&lt;br /&gt;
across 6 nm of protein to generate an electric potential of 1 V with quantum&lt;br /&gt;
efficiency of 1 and absorbed energy conversion efficiency of 47 percent. A&lt;br /&gt;
further advantage of PS I is said to be its transparency to infrared&lt;br /&gt;
radiation, which eliminates the need for expensive cooling equipment.
&lt;/p&gt;
&lt;p&gt;
The researchers include Prof. Chanoch Carmeli, Dr. Shachar Richter, Dr. Itai&lt;br /&gt;
Carmeli and Prof. Yossi Rosenwaks. Ramot, Tel Aviv University s technology&lt;br /&gt;
transfer company, is set to help commercialize the invention.
&lt;/p&gt;
&lt;p&gt;
Larry Loev, director of business development for high technologies at Ramot&lt;br /&gt;
told EETimes the low cost of the proposed device is based on the low cost of&lt;br /&gt;
PS I in comparison to silicon. While one square meter of PS I should cost&lt;br /&gt;
around $1, a similar area made of silicon should cost around $200.
&lt;/p&gt;
&lt;p&gt;
&amp;quot;We connected our device to electrodes and we saw how it converts light to&lt;br /&gt;
electricity,&amp;quot; said Loev.
&lt;/p&gt;
&lt;p&gt;
EETimes Europe has learned that Ramot will probably use the industrial&lt;br /&gt;
facilities of solar energy specialist Millennium Electric T.O.U Ltd.&lt;br /&gt;
(Ra anana, Israel) for making prototype devices, including engineering of&lt;br /&gt;
the prototype up scaling, automation of production and the integration of&lt;br /&gt;
the university&amp;#39;s photovoltaic cell with other components in the final&lt;br /&gt;
device. Ramot aims to develop a cost effective device of 10mm X 10mm in size&lt;br /&gt;
within three years.
&lt;/p&gt;
&lt;p&gt;
Asked about the competition, Loev claimed: &amp;quot;Certainly many researchers are&lt;br /&gt;
looking into how to use photosynthesis to create photovoltaic cells.&lt;br /&gt;
However, a deeper look at what has been published shows major differences&lt;br /&gt;
between what our group has achieved and the rest. First, ours is the only&lt;br /&gt;
group to utilize an organic material in a dry and stable environment.
&lt;/p&gt;
&lt;p&gt;
&amp;quot;Other groups have only done this under aqueous conditions which are much&lt;br /&gt;
less robust. Second, we are able to directly metallize the protein and make&lt;br /&gt;
good electronic coupling to the electrodes. Other groups have utilized&lt;br /&gt;
intermediate polymers for this purpose, which is a very complicated&lt;br /&gt;
procedure. Third, we have demonstrated multilayer capability, which is&lt;br /&gt;
crucial to getting good efficiency.&amp;quot;
&lt;/p&gt;
&lt;br class=&quot;clear&quot; /&gt;</description>
 <pubDate>Sat, 02 Aug 2008 07:14:18 -0400</pubDate>
 <dc:creator>Mike Ciavarella</dc:creator>
 <guid isPermaLink="false">comment 8433 at http://imechanica.org</guid>
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