前后向的

Results: When the slide segment was retained 1 mm width,the fifth cheek tooth and anterior edge midpoint of condyle process anterior slope and coracoid process showed negative displacement and the angle of mandible and the posterior edge midpoint of condyle process posterior slope showed positive displacement on x axes.

结果：在牵张过程中牵张侧下颌骨标志点位移趋势为在内外方向上第五臼齿、喙突、髁状突前斜面前缘中点的运动趋势是向外的，而下颌角、髁状突后斜面后缘中点的运动趋势是向内的；在前后方向上第五臼齿、喙突的运动趋势是向后的，而下颌角的运动趋势是向前的；在上下方向上第五臼齿的运动趋势是向上的。

The expression level of metabolitic enzyme (CYP1A1, CYP1B1) and its correlation with cell differentiation /apoptosis were studied as well. The influence of resveratrol in cell cycle was determined with FCM. Results 1 Resveratrol not only suppresses the growth of medulloblastoma cells in a dose and time related fashion but also induces cell differentiation and apoptosis. Resveratrol promotes differention of UW228-1,-2 cells to forward glia, UW228-3 and Med-3 cells to neuron. A treatment of resveratrol in the concentration of 100μM for 48hrs comit most of cells die of apoptosis. 2 Among the four cell lines Fas and Caspase-3 were constantly expessed, whereas FasL was absent irrespective to the drug treatment. 3 ICC, RT-PCR, Western-blot hybridization and EROD enzymatic activity assay demonstrated that expression of CYP1A1 is different after treatment with resveratrol in four cell lines, up-regulated in three UW228 cell lines in a dose dependent manner but down-regulated in Med-3 cells. Suppressive effect of resveratrol on CYP1B1 expression is the same among four medulloblatoma cell lines. 4 Cell cycle distribution of UW228-3 was greatly changed after treatment.

结果：1、白藜芦醇以时间和剂量依赖性方式抑制髓母细胞瘤细胞生长，同时促进细胞的分化和凋亡：白藜芦醇促使UW228-1、-2靶细胞向神经胶质细胞方向成熟分化，UW228-3、Med-3细胞向神经元细胞方向成熟分化，以100μM作用48小时效果显著；2、四个细胞系均有Fas和Caspase-3表达，但无Fas-L基因表达和蛋白活性产生，因此难以形成Fas相关性死亡通路；3、白藜芦醇处理前后CYP1A1基因的表达在各细胞系略有不同：UW228-1，-2，-3三个细胞系白藜芦醇以剂量相关性方式上调CYP1A1的表达，而Med-3细胞系，白藜芦醇却抑制CYP1A1的表达；四个细胞系在白藜芦醇处理后CYP1B1的表达均受到抑制；4、UW228-3细胞系经白藜芦醇作用后细胞周期有较大改变，表现在G0/G1期在整个细胞周期中所占的比例增加，而其它时期则相应减少。

Three times, teams of soldiers from the main base ran a gantlet of hostile fire to resupply the observation post and carry back the dead and wounded. Within 30 minutes, American fighter-bombers were blasting the militant positions, followed by Apache helicopter gunships.

前后三次，主阵地中的美军士兵利用交叉火力向观察哨提供支援，并抢运死者的尸体和伤员。30分钟后，美军战斗机参战，他们向武装分子的阵地发动空袭，随后阿帕奇直升机也参与了进攻。

The deformation conditions of car door outer board in X and Y direction before/after the weather strip assembly are analyzed.

车门在安装密封条前后在X向和Y向存在着较大的变形，说明车门的刚度存在着薄弱环节。

Materials and Methods: There were 91 prostate cancer patients included in this study. We analyzed the characteristics of each item of the EORTC QLQ-C30 and EORTC QLQ-PR25 by CTT and IRT. The infit statistics of Rasch model was used to examine the unidimensionality of each domain, and also evaluate the item difficulty, the range of item threshold, item targeting and the reliability of the two questionnaires. Furthermore, patients were measured before therapy and at 1, 3 and 6 months after the start of therapy and then compared each health-related quality of life score of the post-therapy groups with the baseline scores. Finally, the item psychometric properties were examined for different groups stratified by age and disease severity.

材料与方法：本研究共计收案91名摄护腺癌患者，利用传统测量与项目反应理论（item response theory， IRT）比较分析问卷各题目的特质，以适合度指标检验各向度是否符合单一向度的假设，并检验每一题目的难度、门槛值范围、适中性，以及问卷的信度；然后，再检验各题目在治疗前后、不同疾病严重度或不同年龄族群中之心理计量特质是否相同。

The table base with the table backand forward is Y. The spindle head going up and down is thedirection of Z axis feed. The Z motor takes with brake. when thepower is cut off, the motor stops in order to prevent the spindlehead fall down because of self-gravity.

工作台底座带工作台前后运动为Y轴方向。Z向进给为主轴头的上下运动，并且Z向电动机是带制动器的，当断电时，Z向刹紧，以防主轴头因自重而下滑。

At the designed operating frequency, the refractive index approximates zero, which makes the nondirective electromagnetic wave tend to approximate plane wave along the normal direction of the superstrate and congregate the radiation energy. The gain patterns of the rectangular waveguide antenna and arrays with and without DNG structure are compared.

比较了双负媒质结构加载前后矩形波导天线及其阵列的增益方向图，数值仿真和测量结果表明，天线的前向增益得到显著的提高，同时对后向辐射也有一定的抑制效果。

Adopt one kind of design plan that PLC controls in the protection the main body of a book has been introduced succeeding an electricity in electric system, that capital is designed time is that the KV circuit imports 10 mainly , change into 380 V voltage grades, before the PLC front and back add front to passage and the queen to passage, change before to passage middle course electric current , voltage a train of, the wave filtering the general is exchanged changing waking up with a start for direct-current, the entering carrying out comparison and switch amounts again , controlling conducting entering PLC, by PLC, The malfunction signal is shown out by lamp light or the alarm signal.

本文介绍了在电力系统继电保护中采用PLC控制的一种设计方案，本次设计主要是将10KV线路输入，转化为380V电压等级，在PLC前后加入前向通道和后向通道，在前向通道中经过一系列的电流、电压转换，将交流转换为直流，进行滤波，再进行比较和开关量的输入，传入PLC，通过PLC的控制，将故障信号通过灯光或者报警信号表现出来。

Based on analyses of observations from the short-spaced GPS receiver array at Wuhan, the storm-time ionospheric irregularities which resulted in scintillations and rapid TEC fluctuations showed westward drifts between 21∶30 and 03∶00 LT with drift velocities changing from ~40 to ~130 m/s. And based on analyses of observations from the ultra-short spaced GPS receiver chain at Guilin, ionospheric irregularities which resulted in the L-band radio wave scintillations, showed eastward drifts around local midnight ranging from ~70 to ~55 m/s on the quiet-day and westward drifts ranging from ~150 to ~50 m/s before the midnight and eastward drifts after the midnight ranging from ~25 to ~65 m/s on the disturbed day.

短间距台网和超短间距台链观测实例的计算结果表明，暴时武汉地区引起TEC快速起伏的电离层不规则结构沿纬圈向西漂移，21∶30至03∶00 LT，西向漂移速度在约40 m/s至130 m/s的范围内变化；在桂林地区，磁静日午夜前后引起L波段电波闪烁的电离层不规则结构沿纬圈向东漂移，漂移速度从约70 m/s下降到约55 m/s，磁扰日午夜前不规则结构向西漂移，速度从约150 m/s下降到约50 m/s，午夜后转为向东漂移，速度从约25 m/s上升到约65 m/s。

In order to disclosure the reason why the electrocatalysis activeness and selectivity droped after being used several hundred hours continuously, the x-ray diffraction, scanning electron microscopy and energy dispersive spectroscope have been used to characterize the surface condition variations of Monel metal. The results indicated: Monel metal belongs to the Cu-Ni alloy around the electrolysis experiment.And after being used for 600hr, the surface layer element composition and geometry distribution of the alloy changed, namely in the alloy the Cu element /which superficial free enthalpy was smaller,"concentrated" to the alloy surface,and formed one kind of marble structure microcrystallite.Thus the electrode surface becamed rough a

为了揭示蒙乃尔合金阴极在连续使用数百个小时后电催化活性剂选择性下降的原因，采用X射线衍射仪、电子扫描电镜和电子能谱分析仪对电解实验所用的蒙乃尔阴极材料在电解实验前后的表面状态进行了表征，结果表明：所使用的蒙乃尔合金阴极材料在电解实验前后均属于Cu-Ni合金，使用600hr后，由于表面层元素组成和几何排布发生了变化，即合金中表面自由焓较小的Cu元素向合金表面&富集&，形成一种大理石结构的微晶，表面粗糙、不均一，这是造成其对硝基苯电还原的催化活性及选择性随着使用时间延长而逐渐下降的主要原因，同时也为此类电极的修饰改进提供了方向。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。