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- Especially, thepresence of Sn in TiO_2-SnO2-SiO2 catalyst promotered the selectivity to DPO. 经Sn改性后的复合型TiO_2-SnO2-SiO2催化剂,使DPO的选择性明显提高。
- Compared with those in two groups, the PaO 2 and(A a)DpO 2 have no difference in preoperative period ( P >0.05). 术前治疗组和对照组PaO2 和 (A a)DpO2 无明显差异 (P >0 .;0 5 )
- TS-1 catalyst showed high selectivity of MPO and DPO during transesterification of DMO with phenol. TS-1在催化DPO合成反应中表现出良好的选择性，弱的L酸中心是DPO合成反应的活性中心。
- The design of a Digitally Programmable Oscillator (DPO) is described for applications in the area of FSK modulator. 介绍了一种可用作FSK调制器的数字可编程振荡器(DPO)的设计。
- The dpo conversion control can track currentwithout any error in steady state, but it need complex computation. dpo变换方式可以作到无稳态误差跟踪，控制精度高，但控制涉及到复杂的变换。
- Accordingly,TiO_2-SiO2 catalysts showed high selectivity to target products, DPO. TiO_2主要以Ti-O-Si键的形式存在,表现出更多的弱酸性,因而有利于DPO选择性的提高。
- TiO2 /SiO2 catalyst was best for improving the total selectivity of MPO and DPO as well as the conversion of DMO. 弱酸中心使得TiO2/SiO2具有高选择性。
- The total selectivity of methylphenyl oxalate (MPO) and DPO was up to 99.2% over TS?1, which was a weak acid. 以弱酸TS-1分子筛为催化剂;MPO和DPO总选择性为99.;2%25。
- The uniquely existed weak Lewisacid sites in the TiO_2/SiO2 catalyst resulted in high selectivity to MPO and DPO. 载体物化性能、TiO_2负载量以及焙烧温度是影响负载型TiO_2催化剂酸性的重要原因。
- Diphenyl carbonate (DPC) was synthesized by decarbonylation of diphenyl oxalate (DPO) over Ph 4PCl catalyst. 研究了以Ph4PCl为催化剂 ,草酸二苯酯脱羰基合成碳酸二苯酯反应。
- TDS3000 series DPO has been become low, high-powered the world leader with portable ability. TDS3000系列DPO已经成为低价、高机能和便携能力的世界带领者。
- Just as the company has a TDS and a DPO series, now there is an MSO4000 Series as well. 像一些仅有一个TDS和一个DPO系列的公司，现在也拥有了MSO4000系列。
- Objective To study the isoenzyme zymogram of monophenol oxidase (MPO) and diphenol oxidase(DPO) of Schistosoma japonicum adult worm. 目的观察日本血吸虫成虫单酚氧化酶(monophenoloxidase,MPO)和二酚氧化酶(diphenoloxidase,DPO)的同工酶酶谱形式。
- The MoO3/SiO2 catalyst with 1 wt% Mo content performed best, giving 54.6% conversion of DMO and 99.6% selectivity to MPO and DPO. Mo负载量为1%25的MoO3/SiO2催化性能最好，DMO转化率54.;6%25，MPO和DPO总选择性99
- The TiO2 species in the form of amorphism is more responsible than that of the crystalline TiO2 for the synthesis of MPO and DPO. 微晶态TiO2的产生会导致催化性能的下降。
- Oscillograph of fluorescence of DPO4000 set number (the function that DPO) asks to examine the most slashing signal offerred place to need. DPO4000 系列数字荧光示波器(DPO)为查看要求最苛刻的信号提供了所需的性能。
- Of the system, P0 is one of the important components; it has twoactivities, MPO and DPO, and exists as proenzyme PPO in the insect. 其中，PO是PPO系统的关键成分之一，它是以酶原形式PPO存在于昆虫体内，具有MPO和DPO两种酶活性。
- Firstly, both MPO and DPO activities in all three groups were identified andmeasured by zymography following native PAGE at 5,7,11 and 15 days,respectively. 首先，经非变性PAGE分离后，采用酶底物显色方法，鉴定并测定了血餐后d_5、d_7、d_(11)和d_(15)三组雌大劣按蚊血淋巴MPO和o-DPO酶活性。
- DPO is designed using a PLL chip LM565, the centre frequency of VCO within which is controlled by 8031 microcontroller using a Resistor Array implemented by CMOS CD4066 switches. 该振荡器使用一片PLL电路LM565,其VCO的中心振荡频率由8031单片机经由CMOSCD4066开关所接的电阻阵列来控制。
- DPO will be a sinusoidal DPO by improving the circuit. A good quality FSK output are easily obtained with good phase continuity which is controlled by using 8031 microcotroller. 将电路改动为一个正弦的DPO后,得到了一个由8031控制的相位连续的BFSK调制输出。
