A synchronous rectifier using current driven approach is disclosed which can replace diode rectifier in most of the power converter topologies to enable low rectification loss. The present invention comprises a low loss switch and essentially a transformer with at lease one current sensing winding, .....
[Detail]
A Compound Of Formula (I): (Wherein R<1>-R<2>, M, T, X, Y, M And N Are Defined Herein). The Compound, When Combined With A Suitable Activator, Is Active For The Polymerization Of Olefins. For Specific Combinations Of The R<1>-R<7> And T Groups, These Catalysts Can Engage In W.....
[Detail]
A modified DNA sequence encoding full length cystic fibrosis transmembrane conductance regulator protein is provided to facilitate propagation and/or expression of the protein in living cells and in particular, bacterial cells. The modified DNA sequence comprises at least one of the 13 base pair rep.....
[Detail]
InGaP/GaAs/Ge化合物太阳能电池，特点：转换效率高、耐高温、抗辐射、可靠性强。 CPV是通过聚光方式把一定面积上的光通过聚光系统汇聚在太阳能电池上太阳光经过500-1000倍聚焦后，将导致太阳能电池上的温度升高，转换效率下降。具有较好耐热性的以锗为衬底的三五族化合物电池，成为了高倍率CPV系统电池的必然选择。 包含聚光型太阳能系统用锗单晶生长和加工的全套技术，其中锗单晶生长技术、锗单晶片双面磨削技术、锗单晶片化学腐蚀技术、锗单晶片抛光技术和锗抛光片清洗技术为填补国内空白的自主研发技术，处于国际先进水平。知识产权状况及获奖情况：专利名称：一种锗单晶片位错腐蚀检测方法专利号：2009.....
[Detail]
A Method And An Apparatus For Video Stabilization Is Disclosed For Detecting And Eliminating Unwanted Camera Motion From A Sequence Of Video Images. Motion Vectors Are First Generated Based On Sample Points Using A Block Matching Technique, From Which A Number Of Possible Camera Motions Are Estimate.....
[Detail]
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