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The results of study show:1. White pulp and red pulp in parenchyma of spleen of embryo can be obviously discerned after 18 days. Periarterial lymphoid sheath and ellipsoid periarterial lymphoid sheath also can be obviously discerned in spleen of 4 days chicken. T, B lymphocytes in appendix basement of embryo emerge after 20 days. It is the initial shape of cecal tonsil. Crypt structure of conjunction of esophago and stomachus glandularis form obviously at 4 days. It is the initial shape of esophago tonsil. The germinal center firstly emerges in these three organs at 14 days. With the increase of day age, the characteristic structure peripheral immune organs gradually develop mature. Spleen achieve mature at 21 days and cecal tonsil at 35 days.2. IgM~+ and IgA~+ cells in spleen of embryo emerge at 15 days. IgG~+ cell, CD3~+ and CD8~+T lymphocytes of embryo emerge at 20 days. CD3~+, CD8~+ and IgM~+ cells in cecal tonsil of embryo emerge at 20 days. However CD4~+, IgG~+ and IgA~+ cells all emerge in 1 day age chicken out of crust. CD3~+, CD4~+, CD8~+, IgM~+ and IgG~+ cells in esophago tonsil of embryo all emerge at 20 days. However IgA~+ cells emerge in 1 day age chicken out of crust.3. The amount of T, B lymphocytes in peripheral immune organs increase follow with the increase of day age, and hold an upgrade tendency. The amount of T, B lymphocytes in spleen achieved stabilization at 21 days, and in tonsil of esophago and appendix at 35 days.

研究结果表明:1、在组织结构方面,脾脏实质内的白髓与红髓在胚胎18日龄后明显可辨,4日龄雏鸡脾脏中形成明显可辨的动脉周围淋巴鞘和椭球周围淋巴鞘;盲肠基部T、B淋巴细胞在胚胎20日龄时开始出现,即初步形成盲肠扁桃体;食管与腺胃结合处在4日龄时形成明显的隐窝结构,即食管扁桃体初步形成;14日龄时,三种器官中首次出现生发中心;随着日龄的增长,外周免疫器官特征结构不断发育成熟,脾脏在21日龄时达到成熟水平,盲肠扁桃体和食管扁桃体在35日龄时达到成熟水平。2、在T、B淋巴细胞出现时间方面,脾脏中IgM~+和IgA~+细胞在胚胎15日龄时开始出现,IgG~+细胞、CD3~+和CD8~+T淋巴细胞在胚胎18日龄时出现,CD4~+细胞在胚胎20日龄时出现;盲肠扁桃体中CD3~+、CD8~+和IgM~+细胞在胚胎20日龄时开始出现,而CD4~+、IgG~+和IgA~+细胞均在雏鸡出壳后1日龄时出现;食管扁桃体中CD3~+、CD4~+、CD8~+、IgM~+和IgG~+细胞均在胚胎20日龄时开始出现,而IgA~+细胞则在雏鸡出壳后1日龄时出现。3、在T、B淋巴细胞数量变化方面,外周免疫器官中T、B淋巴细胞的数量随日龄增长,整体均呈上升趋势。

Faults of ball milling system in power plant are analyzed by means of fault tree analysis. A fault tree is established that contains faults of ball mill, coal feeder, mill exhauster and separator. The minimal cut set is figured out. The cause for the faults are detailed.

利用故障树分析法对火力发电厂制粉系统的常见故障进行了分析研究,建立了制粉系统的故障树,涵盖了球磨机、给煤机、排粉机、粗细粉分离器的常见故障,求出了其最小割集,给出了制粉系统发生故障的原因及导致故障各种原因组合的可能性。

The biological activities of partial imidazolones were studied. The results showed that they did not exhibit obviously herbicidal activity but fungicidal activity.

研究了部分咪唑啉酮化合物的生物活性,结果表明此类化合物均未表现出明显的除草活性,但表现出抑菌活性。

The resulting populations of proteins were considered as induced protein positive to heat stress. Using LC-ESI MS/MS, several proteins were identified, including glyoxalase I and 3beta-hydroxysteriod dehydrogenase. Degenerative primers were designed and RACE technique was applied to obtain the complete gene sequences of the two-mentioned proteins from heat-sensitive and heat-tolerant tomatoes.

经由此研究,成功地找出多个具有高度差异性的蛋白质,在功能分析及归纳整理之后,挑选了其中两个蛋白质glyoxalase I和3beta-hydroxysteriod dehydrogenase,设计degenerative primer,并利用RACE技术将上述2种蛋白质在二种番茄品系中的完整基因序列定出。

The steps are as the following:1、Preparing the cerebrospinal fluid one hour before the experiment,take some of them for cryopreservation;2、Without paralyse,cuting down the rat head quickly and dislodge the hippocamp part which is used in the experment in freezing liquid,and trim the hippocamp distrct.3、Fixing the hippocamp tissue on the vibratome,to cut down a brain slice with 300μm,use the haustorial tube to move the slice to the preincubate dish,cultivanting it for one hour.Then move it to the record incubation chamfer.4、Preparing the glass micloelectrode and fill it with NaCl,the corcentation is 3mol/L.5、adjusting the recorder,after cultivate the brain slice in the incubation chamfer for 2 hours,the expermentize can be gone on.6、In order to ensure the accurate of the experimental result,use only one medicine concentration for one brain slice in every experiment.

本实验研究方法是:1、实验前1小时配制好所需脑脊液并充以95% O2和5% CO2的混合气,取小部分冷冻保存;2、在乙醚麻醉下,快速断头并在冷冻液里取出包含海马的大脑部位,修整出所需海马区;3、将海马组织固定于振动切片机上切出300μm厚的海马脑片,用广口吸管转移至预孵育皿培养一小时,后再转移到记录用孵育槽内;4、拉制好玻璃微电极,并充以3mol/L的NaCl;5、调试好记录仪器,将脑片在孵育槽内培养2小时后进行实验;6、为了保证实验结果的准确性,每一块脑薄片只进行一个浓度的药品实验。

To introduce perturbation corrections of lattice strain intosemiempirical MO calculations,we have written out the programs,STRAIN+SPHF,for calculating perturbation corrections of lattice strain,based onsemiempirical MO calculation program package MOPAC3.0.In principle,the theoretical method and program for calculating corrections of latticestrain can be employed for the studies of growth mechanisms for diamondfilms or other non-metallic films on any non-metallic heterogenic substrates.

运用引入晶格应变修正的AM1半经验分子轨道方法和不包含该修正的AM1方法,通过在Si(100)和(111)衬底表面上提取H原子以及CH3和C2H2吸附过程的计算比较研究,发现包含应变修正的结果比不包含该修正的结果更准确地描述了Si衬底上发生的化学反应过程,并且还能够揭示出无应变修正结果中没有揭示出的表面物理化学现象。

Transcendental phenomenology, through epoche, reaches pure consciousness which is independent of natrural world and yet constitutes it. But there is such a question in this thinking that it is still hiddenly influenced by natrural attitude which Husserl strongly wants to overcome.

先验现象学的特点是,通过&悬搁&的彻底化,剥离出完全独立于自然世界、又构成着后者的纯粹意识,实现哲学的绝对的自身奠基,并释放出《逻辑研究》未达到的自身构成的现象世界。

Behaviour ecology, physio-ecology and community ecology of vines in the evergreen broad-leaved forest of Tiantong National Forest Park, Zhejiang Province, China, were studied and rich first-hand data were collected in this project.Some vines with different climbing motheds were much different in leaf anatomy, ecophysiology, growth rhythm and behavior, and another vines with same climbing methods showed similar adaptation to habitat, on which their distribution in a forest depended. The concept of climbing unit consisted of internode, leaves and tendrils or other climbing organs on it was put forth, and the method to calculate and value the climbing capaity of a vine was set up. In the meantime,experimental ecology of a twining vine Humulus scandens was carried out.

本项目以浙江天童常绿阔叶林为基地,从行为生态、生理生态和群落生态学等角度较系统深入地研究了常绿阔叶林藤本植物的生态适应特征,取得了丰富的第一手资料,结果表明不同攀援类型的藤本在形态结构、生理生态、生长和攀援行为上表现出明显的差异,而同一攀援类型的藤本表现出较大的趋同适应的特征,但也存在着差异,这些特征或差异决定了它们在群落中分布的层次和与支持木之间的作用方式;提出了攀援单位的概念,初步建立了攀援能力的测定和评估方法。

Using JDM-30 strain gauge measurement and 4192A impedometer, effect of magnetization field and stress on the magnetostrictive properties d33, k33 and μ of the Fe83Ga17 alloy are measured.

采用真空感应熔炼法制备出铸态Fe83Ga17合金,用定向凝固的方法制备出取向多晶Fe83Ga17合金,使用JDM-30型磁致伸缩参数自动测量仪和4192A型阻抗分析仪,研究了磁化场和预压力对取向多晶Fe83Ga17合金磁致伸缩性能参数d33、k33及μ的影响。

Properties of FRP materials have been improved by experimental and analysis on hybrid of two or three kinds of fiber, and various products have been manufactured accordingly. At the same time, the resin and equipment that are suitable for those FRP materials have been developed. A series of key applied techniques, such as strengthening of steel structures, masonry structures and concrete structures reinforced with prestressed FRP, lossless inspectability of structures and so on, have been developed though experimental research according to requests of engineering. There are four codes and guidelines for applying FRP techniques to construct foundational establishment. Among them, one technical specification was published in May 2003. It can be standardization of applying FRP materials on engineering. There have been more than one hundred engineerings strengthened with FRP materials since 1999 based on research and investigation of FRP materials and techniques.

在材料改性研究以及产品开发方面,通过纤维混杂改性,开发出适用于不同工程要求的单一品种纤维和混杂纤维的FRP产品及配套树脂材料、配套设备机具等;在关键应用技术开发方面,根据工程需要,开发出钢结构加固技术、砌体结构加固技术、预应力加固技术、结构无损检测技术等基础设施建设中应用FRP材料的关键技术;在规范标准编制方面,主持编制国家规范标准4项, 1项已获批准实施,其它3项正在按计划进行;在工程应用方面,应用自主开发的材料和技术,改造、加固工程100多项,创造了巨大的经济效益及广泛的社会效益。

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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。

When I was in school, the rabbi explained everythingin the Bible two different ways.

当我上学的时候,老师解释《圣经》用两种不同的方法。