进行中的

Comparison of the coding regions of BH1-BH4 genes showed that BH1 had a lower sequence identity to other previously published B-hordeins than the other three B-hordeins obtained in this study. BH1 was then cloned in a bacterial expression vector based on bacteriophage T7 RNA polymerase. The resulting plasmid produced a 28.15 kDa protein in Escherichia coli. The potential value of B-hordein genes in grain quality improvement of hull-less barley has been discussed.

并且，在4个基因BH1～BH4中，BH1与先前报道的B组醇溶蛋白基因有较低的序列相似性，因此我们对BH1基因进行了原核表达，含该基因的表达载体在大肠杆菌中表达出相对分子质量为28.15 kDa并以包涵体形式存在的蛋白，进一步对其在青稞谷粒品质改良中的潜在价值进行了探讨。

In catalytic cracking, the enlarged space in which hot oil is contacted and cracked with the catalyst; in isomerization, the vessel containing catalyst in which the hydrocarbon is isomerized; in alkylation plants, the vessel containing emulsified acid in which most of the alkylation occurs.

在催化裂化中是热油与催化剂接触并进行裂化的扩大空间；在异构化中含有催化剂的容器是烃类进行异构化的场所，在烷基化装置中是发生大部分烷基化反应的含有乳化酸的容器。

Objective: The aims of our research are ① to filter candidate Wnt genes which are important for maintenance of normal hESCs or resulting in karyotypic change through analysis of Wnt genes of differential expression in human and mouse feeder cells and hESCs during culture of normal or abnormal karyotype hESCs.② to research the function of Wnt9a that RNAi for human Wnt9a were performed.

研究目的：对核型正常和异常的人类胚胎干细胞在体外培养过程中Wnt基因在饲养层和hESCs中的差异表达分析，分别筛选出可能促进hESCs正常增殖和引起核型发生变化的候选Wnt基因，并对其中的Wntga候选基因进行RNAi研究，了解其生理功能；在小鼠睾丸或生殖域中克隆与生精相关的新基因，并对其功能进行初步研究。

Based on the detailed analyzing of impact system working process, the differential eguation of the system was got, and the mathematical model of the hydraulic impact system was builted, on basis of the mathematical model, By using of dynamic simulation function of Matlab ,the author has built the simulation model of the impact system based on software Simulink and run it after inputting the parameter ,the dynamic graph curve of impact velocity and presser of oil and position of knife rest were got, and the dynamic characteristic of impact system was analyzed,the simulated results are accorded with the fact,and some rational parameters can be found.

在对冲击式采煤机液压冲击系统工作过程进行详细分析的基础上，运用微分方程建模方法，建立了液压冲击系统的数学模型即系统的动态方程，并在该数学模型的基础上，采用Matlab中的Simulink动态仿真功能，建立了基于Simulink的冲击系统仿真模型，通过给定冲击式采煤机冲击系统的相关参数，对该系统进行仿真，得到了冲击式采煤机工作过程中冲击速度和油液压力以及刀架位移的变化曲线，进而对冲击系统的动态特性进行了分析，结果与实际情况较为吻合，并由此得出某些合理的参数。

Firstly, the realizable ways of signal detection and sample、 power circuit and the application of low-consumption model of MSP430 are discussed, by which the required function of current protection and voltage protection can be realized. Secondly, different protection algorithm based on micro-computer are discussed in this article, and from the virtues and defects of Fourier algorithm, an improved algorithm is put forward, and the importance of the improved algorithm is displaced. Thirdly, according to the national standard of GB/T18858 .3-2002, the principle of networklization of intelligence trip relay and how to realize it are mentioned. Lastly, using the current conditions, the test of precision is done. The experimental date present that the system is working well and can realize the real-time function of on-line detection.

首先在硬件设计上，对于信号检测、处理、电源电路、MSP430系列单片机的低功耗方式应用以及人机接口电路等问题提出了实现方法，基本实现了大范围电流、电压信号实时监控等功能；其次，本文还对当前各种微机保护算法进行了介绍，分析了傅立叶算法在实现智能脱扣器保护功能中的优缺点，并针对傅立叶算法中计算偏于复杂的问题对该算法进行了改进，提出了基于FFT的改进算法，通过算法的分析和比较，对改进算法的性能给出了评价；然后结合我国现场总线国家标准GB/T18858.3-2002讨论了DeviceNet现场总线在实现脱扣器网络化的原理，实现方法，论述了通讯接口电路的设计；最后利用现有条件，对装置进行了性能测试，试验数据说明系统工作状态较好，可以满足低压配电网自动化对低压脱扣器的各项要求。

Abstracts: To sample high speed random signals without drop, a design of O-shaped high speed random signals acquisition card based on the CPLD and its realization are presented. It consists of same three sets of acquisitive circuits, which construct O-shaped structure to sample the signals without drop .And it adopts threshold judging method to determine the valid data in the process of the acquisition, abandons vast of the redundant useless data at the same time, it only sends the useful data to the host computer by the way of DMA, so it is easy to processing the data. The design is concise and reliable. The sketch map of the logic circuit and the explanation of the main parts are presented. This design has been applied in the engineering project of sampling α nuclide.

为了对随机到来的信号进行不丢失的高速采集，提出了一种基于CPLD的随机信号环形高速采集卡的设计与实现；通过采用三套采集电路形成一个环形结构，可以对随机到来的信号进行不遗漏的高速采集，而且在采集过程中利用阈值的方法鉴别出有用信号，并舍弃了大量的冗余无用数据，从而只将有用数据以DMA的方式传于主机，便于进行信号的处理；电路设计简洁可靠，并给出了主要的逻辑电路示意图与主要部件说明；该系统已经应用在采集α核素的工程实践中。

There are ten chapters in the thesis, we analyze the structure and movement of the wefting mechanism and the shuttle box detailedly. The first chapter introduces some basic things about the task, establishes the research course and some performance guide lines, and lists the rebuilding contents and idiographic parameters. In the second chapter, with the whole structure of the heavy wide loom, the thesis briefly introduces a looms component parts and some important weaving parameters, and we may design and analyze it in terms of them. In the third chapter, the thesis discusses the wefting principle,we may make reference to the wefting principle of the ordinary gripper shuttle loom.

第一章主要介绍与课题相关的一些基本情况，在确定其研发进程和一些性能指标的同时，针对JURGENS织机，给出此次改造的内容和该织机的具体特征；在第二章中，论文首先给出织机的整体架构，并简略地介绍织机的各组成部分和一些重要的织造参数，以此作为重型宽幅织机设计和分析的基础；在随后的第三章中，主要阐述重型宽幅织机的引纬原理，详细地分析其整个动作过程，由于重型宽幅织机与常规片梭织机在引纬原理上有相似之处，为此对照常规片梭织机的引纬原理阐明其合理性与优越性：第四章则是对重型宽幅织机所特有的引纬器进行分析，在这部分我们也采用比较分析的方式介绍大型片梭，在对其结构进行分析的同时，也对大型片梭上容易疲劳的部件进行应力分析，以期求得到合理的结构。

The endurance abilities of the embryos of sea perch, flounder and turbot at different developing stages to vitrification solutions were studied. The result showed that sea perch at tail-bud stage, heart-beating stage and pre-hatching stage had more endurance abilities to VSD2, flounder at 4-5 somites, 16-20 somites and tail-bud stage had more endurance abilities to PM3, and turbot at 4-5 somites, 16-20 somites and tail-bud stage had more endurance abilities to PMP1. The feasible equilibration time of three marine fish embryos in vitrification solutions was determined, which guided the dealing process before freezing.

对花鲈、牙鲆、大菱鲆三种鱼类不同时期胚胎分别在玻璃化液中的适应性进行了研究，发现花鲈尾芽胚、心跳胚和出膜前期胚对VSD2的耐受能力较强；牙鲆4-5以肌节胚、16-20对肌节胚、尾芽胚对PM3的耐受能力较强，大菱鲆4—5对肌节胚、16—20对肌节胚、尾芽胚对PMP1的耐受能力较强，较适合于进行玻璃化液处理和冷冻保存；并且确定了三种鱼类各时期的胚胎在玻璃化液中的适宜平衡时间，为胚胎在玻璃化液中处理和冷冻提供了一定的参数。

Methods First to have a clinicopathological analysis of the 50 cases of maxillofacial osteosarcoma and to observe the ultrastructure of 3 cases. Immunohistochemical staining was used to detect the expression of OC、BSP、OPN、 CD1、MDM2 in 50 cases of the tumor. The results were analysed statistically among different histological types and between recured and nonrecured cases.

首先对50例颌面部骨肉瘤进行临床病理分析和超微结构观察，并对其OC、BSP、OPN、CD1、MDM2的表达进行免疫组化检测，对上述蛋白在不同组织学亚型、复发与无复发病例中的表达结果进行统计学分析。

The general information,including primary diseases,therapeutic drugs,infection pathogens in 6 patients with pulmouary infection and unknown reason anemia were integrated and analyzed. The leukocyte and reticulocyte counts,total bilirubin,direct bilirubin,fasting blood glucose were all determined by conventional method. At the same time,the erythrocyte direct antiglobulin test,complement fixation test,cell culture and smear examination were carried out.

对2004年6例肺部感染且不明原因贫血分析的患者的基础疾病、治疗用药、感染病原体等消息进行归纳，对患者外周血进行白细胞计数、网织红细胞计数、分胆红素、间接胆红素、血糖检测，对患者的红细胞进行间接抗人球蛋白试验、补体结合实验、细胞培养与涂片镜检，对患者血浆中的抗体进行间接抗人球蛋白试验。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。