The Laboratory for Astrophysics (LfA) at the National Air and Space Museum (NASM) is proposing a new exhibit: an outdoor model of the Solar System on the National Mall, dedicated to the Spirit of Human Exploration. At one ten- billionth of the size of the actual Solar System, the model...
Why not start by building a solar system model using just a roll of toilet paper? All you need do is use this handy space facts calculator. If you build your solar system on a roll of toilet paper, you can make the Sun about .4 inches (10 mm) across and still fit the entire ...
Resin Aircraft Plane Model UNITED OF AMERICA Air Force One with LED Light 47CM Airplane Models $28.13 - $36.86 Min. order: 3 boxes 1/200 Scale Supersonic airliner British Airways and Air France Concorde Plane Model Collection Airplane Alloy Diecast Fighter Je ...
In this paper a unified model of a solar electric generation system (SEGS) is developed using a thermo-hydrodynamic model of a trough collector combined with a model of a traditional steam power-house. The model evaluates thermal properties, steam flow rate and pressure drop in a direct steam...
The ecological environment directly affects human life. One of the ecological environmental issues that China is presently facing is deterioration of the ecological environment due to mining. The pollution produced by mining causes the destruction of lan
[1] High precision observations during Solar Cycle 23 using the Wisconsin H-alpha Mapper (WHAM) Fabry-Perot quantify a factor of 1.5 ± 0.15 higher Balmer column emission intensity during near-solar-maximum than during solar minimum conditions. An unresolved question is how does the observed ...
This paper proposed a simple model for characterizing the performance of PV arrays as a function of both solar irradiance and cell temperature. The model is based on an ideal cell where effects of series and parallel resistances are neglected. This simplification allows an analytical method to be...
Utility Regulatory and Business Model reforms for Addressing the Financial Impacts of Distributed Solar on Utilities British Petroleum (BP) was among the first major oil companies to commercialise solar power technologies and was also one of the largest fully integrated p... G Barbose,J Miller,B...
This study focuses on feed in tariff (FIT) and renewable portfolio standard (RPS). The objective of these two policies is attracting the public to invest in and to use solar PV system. Based on the experience of Germany about FIT, this paper aims to evaluate the FIT and RPS policies in...
In this paper, the role of the solar grid-based Virtual Power Plant (VPP) is evaluated in the state power utility for the reliability enhancement and cost minimization using a multi-objective model based on MILP optimization. A 90 bus industrial feeder having automatic reclosers, DER, and DSM...