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以超细Co-B非晶态合金催化肉桂醛（CMA）液相选择性加氢制备肉桂醇（CMO）为目标反应，考察超声波预处理对其催化性能的影响并根据催化剂系统......
采用超声波技术激活钾钠液态低共熔物作为邻二甲苯与1，3-丁二烯烯基化反应合成5-苯甲基-2-戊烯（OTP）的催化剂，考察了催化剂预处理参数......
以磷酸和多聚磷酸为催化剂,邻苯二胺和草酸为原料,在超声波辐射下合成双苯并咪唑,并利用正交法探索最佳反应条件。通过实验探索得......
Preliminary Study on Renal Ultrasound Biometry in Apparently Healthy 18 to 30-Year-Old Subjects with
<strong>Introduction:</strong> In our practice, renal measurements in patients with normal renal function usually appear......
Asystemfor accurate localization and trackingof remote objects is introduced, which employs a reference frame of four co......
Transcranial sonography(TCS)is an ultrasound-based imaging technique,which allows the identification of several structur......
