Potential energy

Polarization curve Fuel cell creates 1.16 V of equilibrium potential between hydrogen and oxygen. However, the actual open circuit voltage is around 1 V due to temperature, pressure, and the concentration of the reactant. The ohmic loss is the resistance loss induced by the unique resistances of the component of fuel cell. And the concentration loss occurs when reaction rates of hydrogen and oxygen are faster than their supply rates. (1) The diffusion flux created according to…

the Tesla Model S will be used. It will not be completely accurate because many modifications to the car will be made, but it will serve as a decent sample. The car itself will depend on three main power sources: solar power, wind power, and kinetic energy recovery, or more commonly known as regenerative braking. The solar panels will cover the top of the car, which is about 105.214 feet squared, or about 9.775 meters squared (Model S). However, the windows cannot have solar panels on them as…

zero scalar potential, the result of the calculation is to give a distribution function that is not a solution of the Vlasov equation as it is not a function of the constants of motion only. In essence, an additional exp(−r2) factor is required in the DF to counter exp(r2) terms that manifest by completing the square in the integration. The physical cause here would appear to be the inertial forces associated with the rotational bulk flow. If one assumes a non-zero scalar potential, then it…

Research Statement Past research accomplishments. Probing the dynamics of neuronal activities is crucial to understand the complex mechanisms of the brain and related diseases. Thus, there are great demands on optogenetic indicators for neuronal activities. However, engineering desired optogenetic indicators is a well-known challenge, probably due to the delicate sensing mechanisms, and the lack of effective high-throughput screen. To tackle this, I developed several novel molecular evolution…

Velocity and Beam diameter. The observations of the model can be summarized as below: As Laser Power increases the LAZ Depth of workpiece surface will also increase. This is because the heat input to the workpiece is increasing due to increase in Energy Density. As the Scan Velocity decreases the temperature on workpiece surface will increase. This is because with the decrease in Scan Velocity, the Power Density increases, those results in more heat input. As the Beam diameter decreases…

your time, from my experience actually starting on a project or assignment is the hardest step, but after that it becomes easy to keep working and finish. For example in the morning when you wake up, getting up and starting the day gives you more energy, compared to sleeping for 5 minutes more. While wasting time will lead to cramming, poor performance, and most likely loss of sleep. A key difference between good and bad time management is anticipation and procrastination. The anticipation of…

high-voltage, and induction neutralizers. The radioactive neutralizer emits alpha particles bearing unit charges of positive electricity. The high-voltage neutralizer produces high potential in air near surface being treated. Atoms become ionized and release electrons. Induction neutralizer functions to come up with potentials of polarity opposite to that causing electrification. Humidification can be done by increasing the humidity above 65% permits static charges to dissipate. (Hammer & Price,…

characteristics are not equal to the reverse characteristics (i.e. S12 ≠ S21). So, same antenna can be used for Transmission and Reception of Electromagnetic Waves. Antenna is a passive device, it does not amplify the signals, and it only directs the signal energy in a particular direction in reference with isotropic antenna. Antenna Beam width is the angular width measured at the half power points of the main lobe. Large gain of antenna means narrow beam width. Polarization of EM fields…

Dear Members of the Review Committee: I am writing this letter on behalf of Neil Chappell, MD, in order to convey my strong support of his grant proposal entitled, “Hyperandrogenemia alters ovarian mitochondrial function and subsequent oogenesis and embryo development in a PCOS mouse model.” As his mentor and principal investigator, I am committed to the development of his career, and will assist him in any way I can to ensure his success in all professional endeavors. To date, Dr. Chappell has…

Physics of Skiing Science research paper Johanna Kelly For my science fair project, the topic I wanted to study were the physics of skiing. The question I’m going to do for my experiment is, does wax affect the speed of skiing? I’m also planning on testing the wax in different conditions, and at different slope angles. This seems like a very interesting project, because I really like skiing and snowboarding. Last year my project wasn’t very interesting to me, so I’m glad I picked a…