To study the evolution of protoplanetary dust aggregates, we performed experiments with up to 2600 collisions between single, highly-porous dust aggregates and a solid plate. The dust aggregates consisted of spherical SiO2 grains with 1.5 μm diameter and had an initial volume filling factor (the volume fraction of material) of φ0 = 0.15. The aggregates were put onto a vibrating baseplate and, t...

Depletion of fossil fuels, increase in energy demand, escalation of cost of fuels and environmental pollution has enforced all the countries to give thought on using the renewable energy sources. Among all the possible renewable energy sources solar energy may be a better substitute. The main objective of solar energy application is its collection by collecting device of suitable shape and prop...

Title of Document: VISION ALGORITHM FOR THE SOLAR ASPECT SYSTEM OF THE HIGH ENERGY REPLICATED OPTICS TO EXPLORE THE SUN MISSION Alexander Krishnan Cramer, M.S., 2014 Directed By: Professor Ramalingam Chellappa, Department of Electrical and Computer Engineering This work covers the design and test of a machine vision algorithm for generating highaccuracy pitch and yaw pointing solutions relative...

Second-order shear deformation theory (SSDT) is employed to analyze vibration of temperature-dependent solar functionally graded plates (SFGP’s). Power law material properties and linear steady-state thermal loads are assumed to be graded along the thickness. Two different types of SFGP’s such as ZrO2/Ti-6Al-4V and Si3N4/SUS304 are considered. Uniform, linear, nonlinear, heat-flux and sinusoida...

An analytical analysis has been presented to evaluate the performance of a solar-assisted va-pour absorption cooling system with flat-plate absorber plate. The lithium–bromide water cycle is used obsstain effect. parameters, namely plate efficiency, collector efficiency factor, heat removal etc. have deter-mined variation fluid inlet temperature. coefficient perfor-mance (COP), COP, refrigerati...

Realistic appraisal of paleoclimatic information obtained from a particular location requires accurate knowledge of its paleolatitude defined relative to the Earth's spin-axis. This is crucial to, among others, correctly assess the amount of solar energy received at a location at the moment of sediment deposition. The paleolatitude of an arbitrary location can in principle be reconstructed from...

High brightness and efficient stacked white organic lightemitting diodes (WOLEDs) have been fabricated based on blue phosphorescent and red fluorescent emissive units consisting of NPB/mCP: FirPic/TPBi and NPB/Alq3: DCJTB/BCP, respectively. White light emission with CIE coordinates of (0.32, 0.38) was obtained. A luminance of 40,000cd/m was obtained using a driving voltage of 26V. The maximum l...

The key metric of surface texturing is the short-circuit current Jsc. It depends on front surface transmittance, light trapping and the spatial profiles of photogeneration G and collection efficiency hc. To take advantage of a one-dimensional profile of hc(z), where z is the shortest distance to the p–n junction, we determine G(z) via ray tracing. This permits rigorous optical assessment of com...