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Most conventional methods for the extraction of substrate network were based on the use of frequency behavior of Y22 + Y21. However, we found that the feedback signal through the internal circuit elements makes the conductance of the substrate network underestimated while makes the susceptance of the substrate network overestimated. If conventional methods are directly performed on large area SiGe HBTs, a negative effective substrate resistance will be extracted. In the first part of the thesis, a new extraction method for the substrate network parameters of SiGe HBTs is proposed. When extracting the substrate network parameters, the feedback signal through internal circuit elements is considered. All the circuit elements of substrate network are extracted from Ysub instead of Y22 + Y21. The extracted substrate network parameters show a different bias dependence as compared to the conventional methods. By using a simple n+-p junction, we successfully explained the extracted bias dependent substrate network parameters. We developed a series linear regression equation to extracted the intrinsic circuit elements from the ABCD parameters. Compared with the conventional methods which extracted the circuit elements from Y-parameters or Z-parameters, the proposed method is much simple and easy to implement in the computer programs.

传统方法在萃取基板网路参数时，常常由所量得的Y22 + Y21来著手，但我们的研究发现，利用Y22 + Y21的频率关系来萃取基板参数时，基板网路的电导会被低估而基板网路的电纳则会被高估，另外传统基板网路参数萃取方法在萃取大尺寸元件基板网路参数时会得到负值基板等效电阻，以上的非理想效应皆因忽略部份信号会经由本质参数对基板网路做回授的影响，因此本论文中提出一个新的基板网路参数萃取方法，在萃取基板网路参数时考虑了由本质参数所回授的信号，并且由Ysub而非Y22 + Y21萃取基板等效电阻、基板等效电容及基板与集极空乏电容，成功的解决上述的一些非理想效应，所得到的基板网路参数与集极偏压的关系与传统方法所得的趋势相异，经由一个简单的模型成功的解释了所萃取得到的基板网路参数与偏压的关系，在萃取本质参数时，我们舍弃传统萃取方法中常用的Y参数或Z参数萃取方程式，而改用ABCD参数，并提出一系列的线性回归方程式，萃取所有的本质参数，与传统方法比较起来，比较简单而且容易建立在使用者的参数萃取软体中。

HNC_2H_4S C_(12H_(25)_2·CrCl_3 and Et_2ZrCl_2 were supported on SiO_2 and the effects of different supporting strategies on trimerization selectivity, 1-hexene incorporation efficiency and copolymerization activity were studied and compared to the homogeneous system.

当R基为-C_2H_5时，1atm下65℃时活性最高可达550kg hexene／，提高反应压力有助于得到更高的活性，但是会降低催化剂的选择性；当R基为-C_(12)H_(25)时，1atm下75℃时活性最高可达450kg hexene／。

The wavelet time-frequency properties of the uncracked rotor and the cracked rotor were discussed by the continuous wavelet time-frequency analysis algorithm. A new algorithm using the wavelet time-frequency analysis algorithm to detect the crack was proposed. The influence of the sampling frequency on the wavelet time-frequency analysis algorithm was analyzed through the numerical simulation research; the valid sampling frequency was presented.

利用连续小波时频分析方法，讨论了裂纹转子与无裂纹转子的小波时频特性，提出了利用小波时频分析方法识别裂纹的新方法；数值仿真研究了采样频率对小波时频分析方法的准确性和有效性的影响，并给出了建议性的采样频率。

ANP and CX43 began to express at 2nd week after induction and increased gradually,about 60% of the resulting myogenic cells were positive at 4th week after induction ,they were negative for uninduced cells.hMSCs'surface antigen profiles obtained by Flow Cytometry were negative for CD31\CD34\CD45 before and after induction,but CD90 expressed higher after induction while was weak positive before induction(P.05). Apotosis index was correlated with the cultural time after induction,The apoptosis rate of induced hMSCs was remarkably higher than control group(P.01),and the variation between groups was notable(P.05),the cell cycle analysis showed that the percentages of G_0/G_1phases were reduced significantly after induction. The expresstion levels ofβ-MHC and CTNT mRNA were undetectable before induction,began to increase at 1st、4th week after induction,reached the peak at 6th week and decreased after that,the expression of Bcl-2 and Bax mRNA varied regularly after treated with 5-azacytidine. hMSCs'resting membrane potential、range and rate of depolarization were heightened gradually after being induced.

结果：hMSCs诱导前为纺锤形，诱导后第2天部分细胞即开始发生形变，呈球形或短棒状，1周后胞浆中颗粒增多，约20～30%细胞边缘呈毛刷样变化；hMSCs表面抗原CD31、CD34、CD45在诱导前后差异无统计学意义，CD90未诱导时表达呈弱阳性，诱导后明显增高(P.05)；ANP和CX43在诱导前无表达，诱导后第2周开始表达且表达随时间逐渐增强，但CX43在诱导后第5周表达量开始降低。hMSCs诱导后凋亡指数随诱导后培养时间增加，低浓度诱导组低于标准浓度诱导组，组间差异有统计学意义(P.05)，G_0/G_1期细胞比例诱导后较对照组显著减少(P.05)；β-MHC和CTNT基因分别在诱导后第1周和第4周时表达开始增强，在第6周时均达到高峰，第8周时表达开始衰减，Bcl-2、Bax基因表达呈时间依赖性变化，hMSCs经诱导后随心肌样细胞特征的表达膜静息电位、去极化幅值和去极化速率逐渐增高。

The cells of literature hiding in my bones will immediately act when I see the yulan blossom outside my building, when I stand lonely beside the window, when I take a walk in the rain, or when I pick up my pen devoutly. On these occasions, my world will be filled with the air of literature.

在我望见窗外盛开的玉兰时，在我孤寂的立在落地窗旁时，在我漫步在细雨中时，在我虔诚地提起笔时，那潜藏在骨里的文学细胞活跃了起来，霎时我的世界便充满了文学的空气。

The performance capability of DOCSIS compliant architectures is dependent upon the headend scheduling algorithms which are not specified in the specifications. Therefore, it is important to establish a set of reference performance characteristics for the most simple of scheduling algorithms against which more complex algorithms can be compared. A prioritized FCFS scheduling algorithm is adopted in this paper.

即使对于严格要求的实时CBR业务的延时性能，采用抢占优先级的服务策略所能提供的性能也大大好于业务所要求的性能，这就为进一步提高非实时数据业务的延时性能提供了机会，有可能采用适当的调度策略在满足实时CBR业务的延时性能的基础上，提高非实时数据业务的延时性能。

At the same time, the change of the fluorescence and the activity was detected when the enzyme was thermally denatured.

结果表明，该酶的稳定性非常好，蛋白的质量浓度为0.4 mg/mL时， 90 ℃的半衰期为20 h， 0.2 mg/mL时的半衰期为12 h；而蛋白的质量浓度为0.04 mg/mL时，保温2.5 h时残余活力仍在50%以上。

They do this using a mixture of internal mechanisms (such as sweating when too hot, shivering and fluffing out抖开 feathers/fur when cold) and external methods (moving into the shade, wallowing in mud or swimming when too hot, moving into shelter when cold).

它们是利用一组内部之机转(例如太热时出汗，冷时发抖，或抖开羽毛/毛皮)，以及外部之方法(太热时往阴影移动，泥中打滚，水中游泳；太冷时往遮蔽物移动)。

They do this using a mixture of internal mechanisms (such as sweating when too hot, shivering and fluffing out抖开 feathers/fur when cold) and external methods moving into the shade, wallowing in mud or swimming when

它们是利用一组内部之机转(例如太热时出汗，冷时发抖、或抖开羽毛/毛皮)，以及外部之方法(太热时往阴影移动、泥中打滚、水中游泳；太冷时往遮蔽物移动)。

In complete Nativities the Moon returns to the sign ascending at conception, or its opposite, or to the body or aspect of some Planet with whom she was at the conception, or to her own sign, and generally the Ascendant at birth is the Moon's place at conception, or its opposite, or the place of the Lord of the New Moon foregoing the conception, yet there are sober genitures too, when the Sun comes to the place of the Ascendant or its Lord, etc.

在完整准确的出生图中，月亮会回到受孕时的上升星座、或其相对的星座、或回到受孕时与某些星体成相位的位置、或是回到同一个星座；通常来讲，出生时的上升星座，即为受孕时的月亮的位置、或是其相对的星座、或孕期前月亮定位星所处的位置。如果太阳回到上升位置或其定位星的位置，那么小孩是顺产。注：这一论断可以帮助生时矫正。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。