نتایج جستجو برای: energy losses
تعداد نتایج: 722079 فیلتر نتایج به سال:
The current voltage (JV) curve decomposition is a very powerful tool for interpreting simulation results but also measurements. However, drawing conclusions from it about power losses by simply multiplying by the solar cell voltage V is firstly incomplete because it overlooks power losses during transport and secondly incorrect because all free carriers in the solar cell do not carry an energy ...
due to the increasing interest on renewable sources in recent years, the studies on integration of distributed generation to the power grid have rapidly increased. in order to minimize line losses of power systems, it is crucially important to define the size and location of local generation to be placed. minimizing the losses in the system would bring two types of saving, in real life, one is ...
The energy densities of conventional foods (Paul & Southgate, 1978) and artificial feeds (Livesey & Elia, 1985~) are usually calculated from their compositions, i.e. protein, fat and carbohydrate contents, and the energy conversion factors for these components. Most often the factors are metabolizable energy (ME) values; that is an amount of energy thought useful for doing physical or metabolic...
We study light propagation in a photonic system that shows stepwise evolution in a discretized environment. It resembles a discrete-time version of photonic waveguide arrays or quantum walks. By introducing controlled photon losses to our experimental setup, we observe unexpected effects like subexponential energy decay and formation of complex fractal patterns. This demonstrates that the inter...
The losses in taste and smell that occur with advancing age can lead to poor appetite, inappropriate food choices, as well as decreased energy consumption. Decreased energy consumption can be associated with impaired protein and micronutrient status and may induce subclinical deficiencies that directly impact function. Most nutritional interventions in the elderly do not compensate for taste an...
The effect of oven-drying on the gross energy content of rat carcasses was investigated. No losses of carcass energy could be ascribed to oven-drying per se.
With increase in image quality and screen sizes, the energy consumption of computer displays and television sets has significantly grown. In a typical personal computer or PC, display accounts for 30%~50% of the total PC energy consumption [Mahesri 2005, Robertson 2002]. For instance, typical 19 inch LCD monitor, such as Sony SDM-S93 (1280x1024 pixels), burns in active mode 50W or almost 38% of...
The equivalent circuit model for artificial magnetic materials based on various arrangements of split rings is generalized by taking into account losses in the substrate or matrix material. It is shown that a modification is needed to the known macroscopic permeability function in order to correctly describe these materials. Depending on the dominating loss mechanism (conductive losses in metal...
The computer code ITMC (_Ion transport in Materials and Compounds) has been developed to study in detail the transport of charged particles in solid materials and surface related phenomena such as sputtered atoms and backscattered ions. The code is based on Monte Carlo methods to follow the path and the damage produced by the charged particles in three dimension as they slow down in target mate...
Heat exchangers are of key importance in overall performance and commercialization of thermoacoustic devices. The main goal in designing efficient thermoacoustic heat exchangers (TAHXs) is the achievement of the required heat transfer rate in conjunction with low acoustic energy dissipation. A numerical investigation is performed to examine the effects of geometry on both the viscous and therma...
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