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     [Method] The expression of CCL25/CCR9,CCL28 /CCR10 in the gastrointestinal tract of piglets were measured by conventional RT- PCR at 15d and 30d in the experiment.
     【方法】通过常规RT-PCR检测CCL25/CCR9、CCL28/CCR10分别在15日龄和30日龄仔猪胃肠道不同部位的表达。
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     [METHOD]A fragment TT12A corresponding to a specific conserved region of BnTT12 gene family was amplified by PCR and subcloned into intermediate vector pCambia2301G to form plant expression vector pCambia2301G-TT12A.
     【方法】通过PCR扩增得到BnTT12家族一段503bp的特异保守片段TT12A,通过亚克隆整合到中间载体pCambia2301G,构建TT12反义植物表达载体pCambi-a2301G-TT12A。
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     [Method]chickens were given 10.5% N,O-carboxymethyl chitosan 20ml/(kg·bw) (2.1g/(kg·bw) per time) orally within 24 hours, which was the maximum concentration and volume that could be allowed;
     【方法】以最大浓度的N,O-羧甲基壳聚糖(10.5%),按20ml/(kg·bw)(2.1g/(kg·bw)/次)剂量24h内给鸡灌服;
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     [METHOD]Using HNO3-HClO4-HF, HNO3-HClO4, HCl-HNO3-HClO4 and HNO3 methods to digested the soil, then through measured the heavy metal contents of Cr, Pb, As and Hg to compare four methods.
     【方法】采用HNO3-HClO4-HF、HNO3-HClO4、王水-HClO4、HNO3等不同的酸消解方法对蔬菜地土壤进行消解,通过对Cr、Pb、As、Hg4种重金属元素浓度的测定,然后对这4种消解方法进行实验比较;
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     [Method] Pheochromocytoma cells (PC 12) in logarithm period were taken in the experiment. The cells were divided into two groups according to the different treatment, group SPD (with 1.25. 2.5, 5, 10 mmol/L SPD respectively ) and group DFMO (with 2, 4, 61 8 mmol/L DFMO respectively).
     【方法】:取对数生长期嗜铬细胞瘤细胞株PC12细胞,按照作用剂的不同分为两组,即SPD组(分别含SPD1.25,2.5,5,10 mmol/L)和DFMO组(分别含DFMO 2,4,6,8 mmol/L),分别培养4天,每天观察PC12细胞生长情况。
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     【Methods】Immunohistochemical assay was used to detect the expression of MMP2 and COX-2 protein in cancerous tissues from 57 bladder transitional cell carcinoma(BTCC) patients and 12 normal bladder tissues.
     【方法】免疫组织化学SABC法检测57例膀胱移行细胞癌组织及12例正常膀胱组织MMP-2及COX-2的蛋白表达情况。
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     【Methods】The expression of SIPA1 was examined in 86 sets of HCC tissues and corresponding PCLTs(paracarcinomatous liver tissue),and 8 normal liver tissues by immunohistochemistry.
     【方法】采用免疫组织化学S-P法检测86例HCC组织及其癌旁肝组织和8例正常肝组织中SIPA1的表达情况,研究其与HCC临床病理学资料及预后的关系。
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     【Methods】Form 1990 to 2006,91 hips in 67 cases of congenital hip dislocation aged 7-year to 15-year old,were treated by combined operation,and were followed-up from 1 year to 15 years and 3 months(average,7 years and 4 months).
     【方法】自1990年至2006年作者使用组合术式(切开复位+骨盆内移截骨+髋臼成形+股骨转子下旋转缩短截骨术)治疗大龄儿童(7-15岁)CDH 67例91髋,随访时间1年至15年3个月,平均随访时间7年4个月。
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     【Methods】One hundred twenty four patients with stage Ⅲ and Ⅳ nasopharyngeal carcinoma were randomly divided into two groups,in which there were 60 cases in the combined therapy group and 64 cases in the radiotherapy alone group respectively.
     【方法】对124例Ⅲ、Ⅳa期鼻咽癌患者进行随机分组,实验组60例采用放射联合胸腺肽治疗,对照组64例单用放射治疗,对两组病例进行5年生存率、无瘤生存率、局控率和远处转移率比较。
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     【Methods】One hundred forty seven infertile women suffered from hydrosalpinx,and received IVF-ET for 155 cycles,who were divided into five groups as different treatment for hydrosalpinx: A:22 cycles without treatment for hydrosalpinx before IVF-ET;
     【方法】因输卵管积水致不孕147例,共治疗155个周期,按输卵管积水的处理方法分为5组。 A组:22个周期,输卵管积水未处理,直接行IVF-ET;
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     [Materials and Methods]female nude mice, 4-5 weeks old, were used.
     方法:
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     [Methods]82 patient involving the lumbar spondylolisthesis had been surgically treated and assisted by using the SEP index of preanaesthetization.
     方法
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     [Methods]Cases are from 200 ALL patients of our hospital.
     方法
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     [Methods]We studied a FH proband, which was diagnosed by clinical features and blood lipid tests.
     方法
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In ordinary sampled-data control systems the system response to a step input can reach its equilibrium state only within n or more sampling intervals (n is the order of the controlled plant). In this paper multiple-impulses are used, instead of ordinary simple impulses, to speed up the system response. In such sampled data systems the system response to step input can reach its equilibrium state within less than n, even one, sam-pling intervals. Methods of design of such kind of sampled-data systems and their...

In ordinary sampled-data control systems the system response to a step input can reach its equilibrium state only within n or more sampling intervals (n is the order of the controlled plant). In this paper multiple-impulses are used, instead of ordinary simple impulses, to speed up the system response. In such sampled data systems the system response to step input can reach its equilibrium state within less than n, even one, sam-pling intervals. Methods of design of such kind of sampled-data systems and their com-ponents are discussed. In the last part of the paper methods of compensating sampled data systems with dead time elements is also considered.

在通常的脉冲控制系统中,当输入信号是阶跃函数时,系统的过渡过程至少在n个采样周期内才能完全结束(n是控制对象的阶数).文中考虑了采用宽度不等的多拍脉冲代替通常的单拍脉冲以加快系统的过渡过程.在采用多拍脉冲以后,系统的过渡过程可以在少于n个采样周期内,甚至在一个采样周期内完全结束.文中叙述了这种脉冲系统的综合方法,也讨论了系统中有关组成部分——脉冲组成器和校正装置——的构成方案及其参数的计算方法.最后并考虑了由于时滞引起的对系统动态特性有害影响的补偿问题.文中举有例题,对文中各节内容作必要的说明.

In this paper the general synthesis problem of optimal control systems with the criterion of transient responses as a positive integral functional (3) is discussed.In the first part it is assumed that the motion of controlled object is described by a system of ordinary differential equations and that the final states of the system form a bounded and closed convex region in n-dimentional euclidian phase space. A method is proposed for finding all optimal control functions which lead any starting state into the...

In this paper the general synthesis problem of optimal control systems with the criterion of transient responses as a positive integral functional (3) is discussed.In the first part it is assumed that the motion of controlled object is described by a system of ordinary differential equations and that the final states of the system form a bounded and closed convex region in n-dimentional euclidian phase space. A method is proposed for finding all optimal control functions which lead any starting state into the given final region of states. Some conclusions are obtained from the maximum principle by using transversal conditions of optimal trajectories in terminal points, and the particular properties of the stated problem are pointed out. The case of linear dif-ferential equations with integral quadratic functional criterion is investigated in detail.Further, in the second part the fundamental properties of isoloss regions, the rela-tions between the isoloss region and optimal control functions are indicated. As a direct result a partial differential equation determining the optimal loss-function J (x) is found and the connection between function J (x)and optimal vector control function u (x) is also stated. The methods proposed are practically the extension of the me-thods used by us for designing time optimal control systems as seen in [5, 6 ,7].Finally, an example is illustrated with optimal trajectories shown in phase plane.The necessary numerical data is calculated by an analog computer with high accuracy.

文中研究了具有公式(3)表示的一般正积分泛函的最优控制系统的综合问题.在第一部分中研究了具有控制参数的一阶微分方程组.控制系统的终点状态为n维相空间内的某一逐段光滑边界的闭性区域Ω.文中指出了根据极大值原理和轨道终点的横截条件寻找引到Ω的所有最优轨迹的方法.这里详细地研究了具有二次泛函和被积函数中不明显含有控制参数的质量指标泛函的线性方程情况.在文中第二部分研究了等损耗区的主要特性.指出了等损耗区与最优控制函数之间的关系.导出了求算最优损耗函数J(x)的偏微分方程,以及这一函数与最优控制函数u(x)的关系.上述方法是我们曾在文献[5,6,7]中用过的最优快速系统的综合方法的推广.文章最后举有例证.

This paper describes the dynamic behaviors of a selfbiased bistable multivibrator by the use of waveform analysis with special attention to the switching action of the isolation diodes and the effect of the symmetrical triggering pulse. Seven typical forms of transi-tion and four typical forms of failure are introduced in which the monotonic transition case with the grid voltage intersection point at the leading edge of the triggering pulse gives the highest dynamic stability. Experimental results are included...

This paper describes the dynamic behaviors of a selfbiased bistable multivibrator by the use of waveform analysis with special attention to the switching action of the isolation diodes and the effect of the symmetrical triggering pulse. Seven typical forms of transi-tion and four typical forms of failure are introduced in which the monotonic transition case with the grid voltage intersection point at the leading edge of the triggering pulse gives the highest dynamic stability. Experimental results are included to illustrate the main points.

在研究触发器的动态过程中,我们考虑了隔离二极管的开关作用和触发脉冲的影响,介绍了一种简单直观的分析方法. 文中概括出触发器的七种典型翻转过程和四种破坏情况,指出“交点在前沿的单调翻转过程”的动态可靠性最高.文中主要论点都有实验验证.

 
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