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H-BN thin films were prepared on the (100)-oriented surface of n-Si by r. f. sputtering physical vapor deposition. The field emission characteristics of the BN films were measured in a ultra high vacuum system. It has been found that the field emission characteristics of BN films is affected evidently by substrates temperature.

利用射频磁控溅射方法，真空室中充入高纯N2(99.99%)和高纯Ar(99.99%)的混合气体，在n型(100)Si基底上沈积了六角氮化硼薄膜，在超高真空0^(-7Pa系统中测量了BN薄膜的场发射特性，发现沈积时基底温度对BN薄膜的场发射特性有很大影响。

The traditional circuit boards, particularly early pachytene circuit boards, as requested details of the lines is not very high, it can use the network will be printed circuits printed on the inner layer substrates.

传统的电路板，尤指早期的粗线电路板，由于线路的细致要求并不是很高，因此可以用网印的方式将线路直接印在内层基板上。

Olive oil, tributyrin and p-nitrophenyl palmitate were used as substrates to measure lipase activity.

分别以橄榄油、三丁酸甘油酯和对硝基苯酚棕榈酸酯为底物检测展示的脂肪酶酶活。

Methods: The health adult human primary hepatocyte microsome was randomly divided into 12 groups for control and itraconazole with different concentrations in the range of clinical drug blood concentration, each group have 10 samples. Control groups were added culture fluid, itraconazole groups were added itraconazole with different concentration respectively, after cultured 30 minutes, substrates (phenacetin for CYP1A2, testosterone for CYP3A4) were added and cultured for another 40 minutes.

采用健康成人肝细胞微粒体，分为对照组和不同浓度的伊曲康唑组，共12组，每组10个样本，伊曲康唑组分别加入血药浓度范围内不同对应浓度的伊曲康唑，对照组仅加入培养液，孵育30 min后，再加入CYP450同工酶1A2和3A4的相应底物再孵育40 min。

The substrates for measuring the activity of individual CYP in vitro included phenacetin, tolbutamide, debrisoquine, and omeprazole. RESULTS: Ther...

结果：CYP1A2、2C9及3A4的含量和活性具有很大的个体间变异，另外CYP2D6的活性在各样本间也有很大差异；CYP3A4(32％)是中国人肝微粒体中含量最丰富的CYP，CYP2C9(19％)和CYP1A2(16％)的含量也很可观；除了CYP1A2的含量和活性具有一定的种族和性别差异外，未发现其它CYP具有种族和性别差异；CYP1A2、2C9和3A4的酶蛋白含量分别和它们的活性具有很好的相关性。

The main characteristics, such as the matching behaviors of films coated on substrates in fabrication of concave cylinder photoresist microlens arrays, the structural parameter design of photoetching mask which is relevant to the fabrication of the microlens, and control basis of photoresist mask technological parameters, are analyzed respectively.

分析了在光致抗蚀剂柱凹微透镜图形制作过程中的膜系匹配特性，与制作该种微透镜有关的光掩模版的主要结构参数，以及光致抗蚀剂掩模工艺参数的控制依据等。

A potassium hydroxide etch process can produce deep high aspect ratio trenches in (110) oriented silicon substrates.

一种氢氧化钾蚀刻工艺，能在(110)定向硅衬底上产生深度大的深宽比的沟槽。

It consists of substrates preheater, intelligent proportion-integral-derivation controller and computer serial collecting and feedback control components.

该系统由基板预热器、智能比例微分积分控制器以及计算机串口温度采集反馈控制等3部分组成。

This sleeve dedicated flexo proof press will be of interest to printers and repro houses wishing to print production quality proofs onto the end users substrates.

此套专用柔印证明记者会感兴趣的打印机和繁殖的房屋欲打印生产质量证明，到最终用户的衬底上。

In 5 μM. pseudolaric acid B-treated HeLa cells, caspase-3 proenzyme decreased followed by the degradation of caspase-3 substrates, ICAD (inhibitor of caspase dependent DNase) and PARP poly-(ADP-ribose polymerase.

土槿皮乙酸5μM作用于HeLa细胞后，caspase-3的酶原被降解，caspase-3底物ICAD(inhibitor of caspase activated DNase)和PARPpoly-(ADP-ribosepolymerase降解，caspase-3的抑制剂可部分抑制土槿皮乙酸诱导的细胞死亡，表明土槿皮乙酸诱导HeLa细胞凋亡时激活了caspase-3。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。