The present invention provides a novel potassium-sodium niobate zirconium barium titanate series leadless piezoelectric ceramic composition which comprises perovskite type piezoelectrics KNaNbO3 and strong ferroelectrics Ba(TiZr)O3, the general formula is represented by (1-z)(KNa)NbO3-zBa(TiZr)O3, i.....
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一种采用射频鉴别的计算和验证装置，包括信息记录部分以及计算和验证部分，其中信息记录部分包括：具有射频鉴别标记的记录体，在射频鉴别标记中存储了数据和信息；其中计算和验证部分包括：智能计算和验证箱体（１），传感器（２）和天线（３），同轴电缆（４），以及通过同轴电缆（４）与传感器（２）和天线（３）相连的外置或内置ＣＰＵ的射频鉴别读出器（５），传感器（２）用于辅助检测记录体是否工作正常，天线（３）用于检测记录体上的射频鉴别标记，读取记录的数据和信息，并将读取的数据和信息经同轴电缆（４）传送到外置或内置ＣＰＵ的射频鉴别读出器（５），射频鉴别读出器接收数据和信息，外置或内置ＣＰＵ则将接收的数据和信息解密和.....
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The invention relates to a method for preparing a mugwort leaf oil microcapsule antibacterial crease-resistant fabric. The method comprises the following steps of: 1) emulsifying mugwort leaf oil in an emulsifying agent made of wall material; 2) performing complex coagulation reaction on the emulsif.....
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It introduces methods of screening, identifying and isolating HMG-CoAR inhibitors. In particular, said method is useful for screening natural raw products. It also provides potent HMG-CoAR inhibitors for treatment and prevention of diseases and conditions associated with elevated cholesterol and/or .....
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The present invention discloses a phase lead compensation network, power converters, and closed-loop control system, the phase lead compensation network is provided in the power converter closed-loop control system, the closed loop control system further comprises: power converter and control module.....
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