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Seventhly, a series of experiments and projects were carried out for verifying the previous theory. First, the cable force control test of reticulated shell-string structure in 2.2m×4.6m was conducted using the arithmetic presented in the paper. Second, the numerical analysis during construction, the adjustment of cable forces and the changing of cable of the Beijing North Railway Station were conducted.

为了进一步验证本文前几章有关预应力空间钢结构索张拉计算方法的正确性,本文进行了一系列的试验研究,包括:用提出的基于索原长反分析法对一2.2m×4.6m的小型张弦网壳进行索张拉成形的试验研究;对北京北站进行了模型施工过程分析、模型索张拉力的调整、换索试验研究。

First, a chlorinator was self-designed in this paper, and dichloride of 2-methyl-1-propene was synthesized by 2-methyl-1-propene reacted with chlorine fast in this reactor. By means of the Orthogonal Experiments design and single factor experiments, the influence of several reaction variables on the yield were examined and the optimum reaction conditions under the intervallic operation were obtained, the yield and selectivity of dichloride of 2-methyl-1-prop-ene were more than 65% and 80% respectively. Second, the preparation of 2-methylene-1, 3-propanediol, which dichloride of 2-methyl-1-propene reacted with alkali was investigated. By means of the Orthogonal Experiments design and single factor experiments, the influence of several reaction variables on the yield were examined and the optimum reaction conditions under the intervallic operation were obtained, the conversion of dichloride of 2-methyl-1-propene was 100%. Moreover the preparation of MPO, which 2-methylene-1, 3-propanediol reacted with hydrogen, in presence of Al_2O_3-Pd catalyst, was gotten, and the product was appraised.

本文在氯化反应过程中,自行设计制作出了氯化管式反应器,在该反应器中异丁烯和氯气迅速混合反应生成二氯异丁烯,根据该氯化反应特征利用正交试验和单因素试验考察了有关因素的影响并优化得到了最佳工艺条件,二氯异丁烯的总收率达65%以上,选择性达80%;接着,对二氯异丁烯进行水解反应制得了2-甲烯-1,3-丙二醇,讨论了相关因素对水解反应的影响,并通过正交试验和单因素试验得到了较佳工艺条件,二氯异丁烯的转化率达100%;同时还对制备的2-甲烯-1,3-丙二醇在常压下采用三氧化二铝负载钯催化剂催化加氢得目的产物MPO,并对产品进行了鉴定,从而打通了整个工艺路线。

The main component of ramie glial was pectin, hemicellulose and lignin; The single factor on degumming of ramie test was respectively analyzed with a high vigorous of pectinase KDN and TZ-888 compound enzyme (mainly xylanase and mannanase on the pH value, bath ratio, dosage of enzyme, metal ions, temperature and time.The orthogonal test of L9(34 were done by bath ratio, dosage of enzyme, temperature and time. The results showed that the best compages of KDN pectinase on degumming was 1∶12 of bath ratio,pH 8.6,1 mmol/L Mg2+,300 IU/g of KDN pectinase,35℃、6 h;the best compages of TZ-888 compound enzyme on degumming was 1∶18 of bath ratio,pH 4.0,1 mmol/L Ca2+, 500 IU/g of TZ-888 compound enzyme,45 ℃,6 h.

摘 要:本研究根据苎麻胶质的主要成分为果胶、半纤维素和木质素,用高活性的KDN果胶酶和TZ-888复合酶(主要是木聚糖酶和甘露聚糖酶)从pH值、浴比、酶用量、金属离子、温度、脱胶时间等方面进行单因素试验,然后选取影响显著的浴比、酶用量、温度,时间进行四因素三水平的脱胶试验,结果表明鲜麻采用KDN果胶酶脱胶最佳组合为浴比1:18,pH 8.6, 1 mmoL/L Mg2+,酶用量300 IU/g,温度35 ℃、时间6 h时处理,TZ-888复合酶脱胶最佳组为浴比1:12,pH 4.0, 1 mmoL/L Ca2+,酶用量500 IU/g,温度45 ℃,时间6 h进行脱胶为优化的试验条件。

The main component of ramie glial was pectin, hemicellulose and lignin; The single factor on degumming of ramie test was respectively analyzed with a high vigorous of pectinase KDN and TZ-888 compound enzyme (mainly xylanase and mannanase on the pH value, bath ratio, dosage of enzyme, metal ions, temperature and time.The orthogonal test of L9(34 were done by bath ratio, dosage of enzyme, temperature and time. The results showed that the best compages of KDN pectinase on dry ramie degumming was 1∶12 of bath ratio,pH 8.6,1 mmol/L Mg2+,20 IU/g of KDN pectinase,4℃、4h;the best compages of TZ-888 compound enzyme on degumming was 1∶18 of bath ratio,pH 4.0,1 mmol/L Ca2+, 300 IU/g of TZ-888 compound enzyme,40 ℃,5 h.

摘 要:本研究根据苎麻胶质的主要成分为果胶、半纤维素和木质素,用高活性的KDN果胶酶和TZ-888复合酶(主要是木聚糖酶和甘露聚糖酶)从pH值、浴比、酶用量、金属离子、温度、脱胶时间等方面进行单因素试验,然后选取影响显著的浴比、酶用量、温度,时间进行四因素三水平的脱胶试验,结果表明干苎麻采用KDN果胶酶脱胶最佳组合为浴比1:12,pH 8.6, 1 mmoL/L Mg2+,酶用量200 IU/g,温度45 ℃、时间4 h时处理,TZ-888复合酶脱胶最佳组为浴比1:18,pH 4.0, 1 mmoL/L Ca2+,酶用量300 IU/g,温度40 ℃,时间5h进行脱胶为优化的试验条件。

To correct this problem of shear test, we improved the equipment of lab large-scale shear test and developed an especially new one which overcome the disadvantages of normal equipment, make the result more accuracy and can do more analyze about the shear surface, dilatability of the mixture only through shear test.

本研究对室内大型直剪试验进行了改进,研发了新型的土石混合料室内大型直剪试验系统,克服了常规直剪仪存在的主要问题,还可以进行剪胀率、剪切面起伏特征、剪切面分形等研究,使得试验结果更精确、可靠,试验分析更完善。

The experimental results are analyzed using the virtual linear viscous theory and the constitutive equation is established for the fibrocartilage.

通过对新鲜腕关节软骨板共计60个试件进行不同应变水平下的"应力松弛试验"和等应变速度下的"拉伸试验",了解腕关节软骨板在承受一维拉伸破坏试验时的力学性质,并用拟线性粘弹性理论对试验结果进行分析,建立了腕关节软骨板的本构方程。

At the same time, 9 groups data are conversely choosed according to uniform orthogonal array from 71 groups observed data of suspended grid plunge pool, the mold is set up by the method of PPR, the surplus 62 groups data are used to proceed examination, the empirical type optimum design of experiments are proceeded inversely, all of these confirm that a lot of model experimental results can be replaced by a few of test times under nonstrict uniform experimental condition. The result can provide the feasibility reference basis for same kind of model design of experiments in future.

同时从71组悬栅消力池观测数据中,按均匀正交表反选9组数据,用PPR方法建模,剩余的62组数据进行检验,逆向进行了实证性优化试验设计,证实了即使在非严格的均匀试验条件下,仍然可以用少量的试验次数替代大量的模型试验结果,为今后同类模型试验设计提供可行性的参考依据。

Based on the results of the large-size shaking table test of a subway station structure built in liquable site,considering the influence of the soil-structure nonlinear dynamic interaction by 2D finite element methods,the seismic responses of the soil- subway station structure system under different test conditions are analyzed by using ABAQUS software.

根据可液化土层上土-地铁车站结构动力相互作用大型振动台模型试验结果,以软件ABAQUS为平台,将地基土-地铁车站结构体系视为平面应变问题,采用记忆型嵌套面黏塑性动力本构模型模拟土体的动力特性,采用混凝土动塑性损伤模型模拟车站结构混凝土的动力特性,建立了土-地铁车站结构非线性动力相互作用的有限元分析模型,对各种试验工况下地基土-地铁车站结构体系的地震反应进行了数值模拟,并与试验结果进行了对比,结果表明:数值模拟与振动台模型试验结果基本一致,体现出了相似的规律性,相互印证了计算分析的力学建模和振动台试验结果的正确性。

Peach_pink,Lotus_shaped;flowers inclining to one side;short bloom shoots,small,pointed deeply toothed leaves with with bluish green stalks,half_spreading.

桃红色,蔷薇型。花茎较短,花朵侧开。叶柄青绿色,叶小尖,缺刻深。株型半开张。中文:航行试验前应依据&倾斜试验大纲&进行倾斜试验,并在消除了倾斜试验之中所发现之问题和缺陷并在船级社及船东同意之后才能进行航行试验。

Study on the rubber stator compoundof one step injection screw drilling tool;2. he paper presents a test method to research the dynamic property of the rubber stator for screw pump,compares the result of static and dynamic tests and selects the formulation according to the tests.

提出研究螺杆泵定子橡胶动态性能的试验方法,对静态试验及动态试验结果进行对比,并应用其试验对配方进行筛选,结果表明,橡胶压缩温升试验能较好地表征螺杆泵定子橡胶的动态性能,为橡胶定子的研究提供了较为可靠的依据,并在实际应用中得以证实。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。