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Behavioral & Social Sciences
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Chemistry & Biochemistry
Civil & Energy Engineering
Computer Science & Applied Computational Methods
Environmental Sciences/Engineering
Electrical & Computer Engineering
Biomedical Engineering & Health Technologies
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Plant Sciences
BEHAVIORAL & SOCIAL SCIENCES
so basically there two bowls one fancy and one plane and where gonna see if people prefer the fancy bowl
ENVIRONMENTAL SCIENCES/ENGINEERING
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ELECTRICAL & COMPUTER ENGINEERING
The increasing global emphasis on sustainable energy and self powered systems necessitates innovative methods for converting readily available ambient mechanical energy into usable electricity, specifically focusing on micro-power applications such as illuminating LEDs or powering small DC motors. The principle of energy harvesting via the piezoelectric effect offers a pathway for achieving this goal. The real world application idea behind this effort is to integrate the piezoelectric sensor circuit into vehicle components to act as dynamic pressure sensors and produce an electrical output that can be correlated with air resistance. The engineering goal is to design and validate an electrical circuit that employs both amplification and voltage multiplication techniques to boost the transient micro-voltage output generated by the air resistance pressure on a piezoelectric sensor. The objective is to reliably achieve the threshold voltage and sustained power necessary to illuminate one or more LEDs.
Piezoelectric sensors, LM386, capacitors and diodes to build a voltage multiplier circuit, a resistor and a LED are used. A 5V voltage supply is used for LM386. The sensors are connected to an LM386 amplifier which is then connected to a voltage multiplier circuit. Varying air pressure using hair dryer and a hand held fan are applied and the resulting voltage for the varying air pressure/wind speed is recorded. Hair dryer and the fan simulate air resistance to a moving vehicle. The resulting voltage powers the LED in the circuit.
MECHANICAL & MATERIALS ENGINEERING
Its a magnetic baby gate that attaches to the wall.
MECHANICAL & MATERIALS ENGINEERING
This project is a magnetic baby gate that connects to the wall. With simple installation and even easier to disassemble keeping babies dogs and other small animals out from closed off areas.
MEDICINE & HEALTH SCIENCES
Researching the differences in mountain biking race times as boys and girls progress in age and skill from 7th to 12th geade in an effort to determine at which point boys start to naturally further surpass girls
PHYSICS, ASTRONOMY & MATH
This science experiment shows how the Sun’s heliosphere interacts with strong galactic cosmic radiation, such as a relativistic jet from a black hole. The heliosphere acts as a protective bubble around the solar system, shielding it from cosmic rays and interstellar particles. The goal of this project is to model and determine whether the heliosphere can still protect the Sun and its planets from extreme radiation beyond normal cosmic conditions. To simulate this, lasers of different power levels (30 mW, 140 mW, and 170 mW) were used to represent intensities of galactic cosmic radiation, and fish tanks filled with water modeled the heliosphere. The experiment measured the change in laser energy after passing through the tanks to calculate the percentage of change, mean, and standard deviation. Results are expected to show that the heliosphere, like the water barrier, significantly reduces radiation intensity but has limits when exposed to extreme levels of cosmic energy. This project helps demonstrate the importance and limits of the Sun’s heliosphere in protecting our solar system from intense cosmic forces.