进行选择

Selection of minning technology,support method and parameters of medium-thick seam is introduced.

介绍了中厚煤层一次采全高的回采工艺、支护方法和具体参数的选择，即工作面回采时不留底煤，增加煤炭回收率，对支柱布置形式进行改进，并在理论上进行安全系数验算。

Firstly, a series of organic molecules which use phthalimido group as electron acceptor, N as electron donor, COO~- as eletrofugal group were synthesized based on SET-promoted photocyclization processes. These compounds were irradiated by 500 W ultraviolet under nitrogen atmosphere in room temperature. After filtration of the photochemical character of these molecules, substrate S1 and S2 were selected as appropriate model reactants. Secondly, the monosubstituted derivatives at the 6-position ofβ-cyclodextrin were synthesized as chiral template of photocyclization.

首先，以单电子转移机理为指导，设计了一系列以邻苯二甲酰亚胺基为电子受体、N为电子给体、羧基为离去基团的光环合反应底物，这些化合物在氮气保护下以500瓦紫外光室温下进行光照反应，对这一系列的分子的反应情况进行了研究与筛选，最终选择底物S1和S2作为研究光环合反应中立体控制方法的模型底物；其次，又合成了一系列6-位单取代β-环糊精，以此作为光环合反应的手性模板。

Also, Petrologic features, diagenesis and pore evolution features, and reservoir feature were worked and evaluated. The study direction of Neopaleozoic reservoir geology in this area was pointed out too.4. Based on the time-space structure of source rock, reservoir rock and cap rock in petroleum system of Neopaleozoic in south of North China Basin, play and pool-forming unit of Neopaleozoic was divided. The matching relation between trap formation period and peak period of source rock hydrocarbon generation and expulsion was analyzed, which pointed out the future direction of hydrocarbon targets exploration in this area.

同时，对区内砂岩储层的岩石学特征、成岩作用及孔隙演化特征和储集特征方面等进行了综合研究和客观评价，并分析讨论了今后该区上古生界油气储层地质的研究方向。4、根据华北盆地南部上古生界含油气系统中烃源岩、储集岩和盖层的时空结构，进行了上古生界成藏组合和基本成藏单元的划分研究；通过对圈闭形成期与烃源岩生排烃高峰期匹配关系的分析研究，指明了今后该区油气勘探目标的选择方向

By comparing the amino acids sequences of SCRs of different regulators of complement activation and homologous structure units of DAF in different species, the conservative and nonconservative amino acids in DAF were determined. The possible activity sites were analysed and mutation amino acids sites to construct the mutant library were defined.3. Constructing and evaluating of yeast display mutant library on DAF scaffold.

SCRs多重序列比较及DAF突变位点的选择通过对补体调控蛋白家族成员、不同种属DAF分子的同源结构单位SCR的氨基酸序列进行多重序列比较，确定了DAF分子中的保守性氨基酸和非保守性氨基酸，并根据已有的实验结果，对DAF分子可能活性位点进行了分析，确定了构建酵母细胞表面呈现库的突变氨基酸位点。

Methods: Fifty-fix adolescents were chosen and divided into first premolar extraction and nonextraction groups, with 30 and 26 patients respectively. The pretreatment and posttreatment panoramic radiographs were taken. The indexes of third molar eruption space, distance from third molar to occlusal plane and the length of mandible were measured and analyzed.

选择56例上下颌第三磨牙均存在的患者进行方丝弓正畸治疗，按照第一前磨牙拔除与否分为拔牙组（30例）和非拔牙组（26例），利用术前术后曲面断层片对患者上下颌第三磨牙萌出间隙、第三磨牙与胎平面的距离以及下颌长度进行测量分析。

Then, Otus's threshold method is used to segment the image and locate the sea-sky-line, through which the target potential area can be determinated.

采用维纳自适应滤波，抑制随机噪声和高斯噪声；利用Otus阈值法分割图像，确定海天线和目标潜在区；利用Top Hat算子进行形态滤波处理，抑制平缓变化背景并保留高亮度区的目标和强噪声；选择结构元素进行形态开运算，去掉细小的背景杂波干扰；针对远距离舰艇小目标总是出现在海天线附近以及红外目标灰度高于其邻域背景的特点，确定阈值即可分离出真正的目标。

According to the general principles of constitutionalism, legislation, administration and judicature have different properties in public law and different features in the degree of openness and activity. To really realize governance by law, flexible choices should be made between formal positivism and formal passivism according to the different properties and features of legislation, administration and judicature, which altogether depends on the CCP's putting itself in a modest position. Only in this way can the ultimate conception of the harmonious combination of political and legal values of governance by law come into reality.

从宪政的一般原理上看，立法、行政与司法在公法上具有不同的性质，并且在开放性、能动性等方面具有不同的特性，要真正实现依法执政就必须依照立法、行政与司法的不同性质与特点在形式积极主义与形式消极主义间进行灵活选择，而这一切端赖于中国共产党的自我谦抑立场，如此方可实现将依法执政的政治价值与法治价值这两种不同的价值目标进行和谐统合的终极构想。

objective to search the factors of liver injury via the anit-induced liver injury in rats.methods male sprague-dawley rats,were divided into 4 groups,data were analyzed using a completely randmized factorial anova and linear correlation.results after anit intoxication,the necrosis of hepatic cell and neutrophil infiltration im periportal region of the liver were observed in liver setions.jinshisan can reduce the alt,the tbil.pla2 correlated positively with alt、akp and tbil.conclusion the severity of anit-induced liver injury correlated positively with the pla2.jinshisan can protect against the rat anit-induced liver injury.

目的 拟通过对α－萘异硫氰酸酯诱导大鼠肝损伤发病机理的探讨，对引起肝损伤的因素进行系统的研究。方法选择s-d大鼠，雄性，随机分4组，检测数据以平均值±标准差表示，采用方差分析，相关分析进行统计学处理。结果s-d大鼠经anit染毒后，病理切片显示肝损伤明显，汇管区有大量中性粒细胞浸润。经金石散及地塞米松治疗后，生化指标均有所下降，中药金石散优于地塞米松，血生化指标与pla2活性相关分析显示，呈正相关。结论 anit诱导的肝毒性损伤程度与肝组织匀浆pla2活力呈正相关，应用抑制剂降低pla2活力，肝损伤程度也减轻，中药金石散具有降低pla2活性，减轻肝毒性损伤。

Patients were randomly assigned to two groups, The one is chronic tonsillitis, the other was obstructive sleep apnea syndrome, Exclusion criteria of chronic tonsillitis included peritonsillar abscess history, bleeding disorders, and any other procedure together with tonsillectomy., Indications of chronic tonsillitis included intraoperative bleeding, operative time, postoperative pain, and return to normal diet were evaluated. Indications of obstructive sleep apnea syndrome included Intraoperative bleeding, operative time, Using spss11.0 software analyzed all the data.

实验设计和观察指标：选择慢性扁桃体炎患者30和鼾症患者30人，慢性扁桃体炎患者不包括伴随扁桃体周围脓肿患者，不包括有血液系统疾病和凝血障碍的患者，同时不包括扁桃体切除手术和其它手术同时进行的患者，鼾症患者不包括有血液系统疾病和凝血障碍患者，慢性扁桃体炎患者观察记录的指标包括手术时间﹑手术中出血量﹑术后疼痛时间和程度和正常饮食恢复时间，鼾症患者记录手术时间和手术中出血量，使用spss11.0软件对所有的数据进行描述性统计分析

Methods Fifty-two myopia patients were enrolled before LASIK. Distance lateral phoria, stereopsis acuity and other refraction parameters were measured and analyzed.

选择门诊近视眼术前检查的患者52例，在常规检查的基础上，对隐斜视及立体视锐度进行测量并进行统计学分析。

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。