The invention is a hybrid photovoltaic/thermal collector that converts solar energy to electrical energy and thermal energy by using photovoltaic cells and thermal energy collector respectively. This solar collector comprises a layer of photovoltaic (PV) cells laminated to the surface of a thermal c.....
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測試網路通信中的通信協定的方法和系統
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The degradation of contaminant, PAHs is very ineffective and slow. Beside, during soil composting process, the toxicity of PAHs significantly increased with its increased molecular weight. More difficulty, the biodegradation of molecules containing five or more benzene rings of PAHs molecules is ver.....
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The invention relates to methods and apparatus for analyzing diamond colors by measuring the spectrum of light that passes through a cut diamond. A diamond is submerged in water or an optically clear liquid, and a light from a diffused daylight-approximating source is shot through the table facets o.....
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