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2008 Analysis of the Geometry of Drilled Holes in Demolition ...

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#21<br />

Development <strong>of</strong> a K<strong>in</strong>ematics Simulator and Problem Solver<br />

us<strong>in</strong>g Java<br />

Gabriel R. Borlongan<br />

ABSTRACT<br />

K<strong>in</strong>ematics, <strong>the</strong> study <strong>of</strong> motion, is one <strong>of</strong> <strong>the</strong> first topics physics students<br />

delve <strong>in</strong>. Without a good foundation, <strong>the</strong>y cannot go on to reach <strong>the</strong> different<br />

areas <strong>of</strong> one <strong>of</strong> <strong>the</strong> hardest sciences, physics. Teachers may also have a hard time<br />

<strong>in</strong> relay<strong>in</strong>g <strong>the</strong> lessons because <strong>of</strong> <strong>the</strong>ir students’ different aptitudes <strong>in</strong> science.<br />

With technology today, people f<strong>in</strong>d one <strong>of</strong> <strong>the</strong> best ways to overcome challenges<br />

and solve problems. Java, a multi-platform programm<strong>in</strong>g language, is usually<br />

used to write programs that simplify tasks.<br />

A successful program, <strong>the</strong> k<strong>in</strong>ematics simulator and solver, us<strong>in</strong>g Java<br />

and source code processor JCreator 4.0, was developed to overcome this hurdle <strong>in</strong><br />

<strong>the</strong> lives <strong>of</strong> many students, and teachers as well. The solver can f<strong>in</strong>d <strong>the</strong> value <strong>of</strong><br />

any k<strong>in</strong>ematics variable with any <strong>in</strong>put for any one-dimensional (1D) k<strong>in</strong>ematic<br />

problem 100% accurately and precisely <strong>in</strong> less than a second. Test<strong>in</strong>g was made<br />

cont<strong>in</strong>uously <strong>in</strong> one computer without program debugg<strong>in</strong>g. The simulator can<br />

graph <strong>the</strong> motion <strong>of</strong> a projectile given <strong>the</strong> user’s <strong>in</strong>put <strong>of</strong> velocity and angle <strong>of</strong><br />

fir<strong>in</strong>g from <strong>the</strong> ground. Because <strong>of</strong> expertise and time constra<strong>in</strong>t, <strong>the</strong> proponent<br />

<strong>in</strong>cluded only 1D motion for <strong>the</strong> solver. However, work on <strong>the</strong> 2D part has been<br />

started already so future developers can work more on o<strong>the</strong>r aspects like <strong>the</strong><br />

graphical user <strong>in</strong>terface. The project needs a few more modifications to be a<br />

perfect k<strong>in</strong>ematics study tool but <strong>the</strong> present successful stand-alone program is<br />

already a foundation for future developers.<br />

#22<br />

Celery seed Extract as active <strong>in</strong>gredient <strong>in</strong> tann<strong>in</strong>g lotions<br />

Christian John Immanuel S Boydon, Dennis C David, Gerard Paul T Dela Cruz<br />

ABSTRACT<br />

A tann<strong>in</strong>g lotion with celery seed extract as active <strong>in</strong>gredient was concocted<br />

<strong>in</strong> order to f<strong>in</strong>d out if it could be an effective but less expensive substitute to<br />

commercial tann<strong>in</strong>g lotions. Celery seeds were bought from AMSA Seed company<br />

and extract was obta<strong>in</strong>ed us<strong>in</strong>g soxhlet extraction technique. Sesame oil, coconut<br />

oil, an emulsifier and <strong>the</strong> celery seed extract were <strong>the</strong>n mixed toge<strong>the</strong>r, before<br />

add<strong>in</strong>g distilled water and lanol<strong>in</strong>.<br />

The lotion was <strong>in</strong>itially tested on <strong>the</strong> upper arm area to check for any<br />

allergic reaction or irritation on <strong>the</strong> sk<strong>in</strong>. The comparative test<strong>in</strong>g for color change<br />

<strong>in</strong>cluded us<strong>in</strong>g no tann<strong>in</strong>g lotion, us<strong>in</strong>g <strong>the</strong> celery seed extract tann<strong>in</strong>g lotion, and

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