柱
- 与 柱 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Said simple building comprises building body, roof and pool inside room; the lower building body is complete closed, the upper building body is provided with pillar on lower building body, and is circled with sun-shading net around pillar, the outside of sun-shading net is equipped with movable curtain; the roof is straw roof and has two sides along ridge; the pool inside the room comprises cultivation pool and laying-up basin, each cultivation pool is provide with a overflow bench, the bench surface is equipped with a cushion and the cushion is fixed on slope bench with a plurality of bracing column of same height, and a bamboo curtain is placed on the bracing column for young wood frog rest.
该简易房,包括房体、屋顶和室内池,其下房体为全封闭体;上房体是在下房体上设有房柱,再用遮阳网沿房柱排列的走向围拢,在遮阳网的外面还设有活动帘;屋顶为稻草屋面,沿屋脊坡向两面;室内池包括养殖池和蓄水池,每一个养殖池中均设有漫坡台。坡台面上设有软垫,并有相同高度的多根支撑柱钉穿过软垫固定在坡台上,支撑柱钉上再放置供幼蛙栖身的竹帘。
-
Chemiluminescent immunoassay is one of the advanced immunoassay ofnon-radioisotopic immunoassay because of its high sensitivity, wide dynamic range,high accuracy, stable labeled protein, full automation and extensive application field.CLIA using acridinium ester derivatives as chemiluminescent label has advantages oflow background, high signal-to-noise ratio, no need of catalyst and simpleluminescence system. Different aspects associating the DMAE·NHS-based CLIA were studied in thisthesis, including synthesis of acridinium ester, chemiluminescentcharacteristics of DMAE·NHS, labelling antibody or streptavidin with DMAE·NHS,two-site sandwich chemiluminescent immunoassay for TSH, two-sitesandwich chemiluminescent immunoassay involved biotin-streptavidinsystem for TSH, and competitive chemiluminescent immunoassay usingbiotin-streptavidin system for TT〓. The desired acridinium ester, DMAE·NHS, was synthesized according to thereference method with some modifications. The products were identified by IR, NMR,MS and elemental analysis. In our method, KOH was used in place of NaOH tosynthesize benzyl ester of 3,5-dimethyl-4-hydroxybenzoic acid,2',6'-dimethyl-4'-(n-succinimidyloxycarbonyl) phenyl-acridinium-9-carboxylate waspurified on a silica gel column with chloroform/ethylacetate(4:1, v/v) as eluent andfurther purified by triturating with hexane/acetone(2:1, v/v).
DMAE·NHS的合成是本论文的关键和难点,我们对文献方法进行改进:文献方法用氢氧化钠与3,5-二甲基-4-羟基苯甲酸反应制得3,5-二甲基-4-羟基苯甲酸钠,再用3,5-二甲基-4-羟基苯甲酸钠与苄氯作用制备3,5-二甲基-4-羟基苯甲酸苄酯,我们用氢氧化钾代替氢氧化钠,使合成取得成功;在合成2',6'-二甲基-4'-苯基-吖啶-9-甲酸酯时,文献方法对粗产品进行两次硅胶柱层析纯化,第一次柱层析用氯仿/乙酸乙酯(4∶1,V∶V)作溶剂和淋洗剂,第二次柱层析用己烷/丙酮(2∶1,V∶V)作溶剂和淋洗剂,按照文献方法得到的不是所需要的化合物,我们只进行第一次柱层析纯化,然后用己烷/丙酮(2∶1,V∶V)进行研磨,过滤,洗涤,除去溶于己烷/丙酮(2∶1,V∶V)的部分,得到所需要的产品。
-
The optimal carrier gas velocity of prepared SE-30 series capillary chromatographic columns was studied and used to separate isomeric compounds. The efficiency of SE-30 capillary chromatographic columns has been studied with different diameters, film thicknesses and oven temperatures, using n-do-decane, phenol, aminobenzene, and butyl acetate as test samples.
研究自制的SE-30系列毛细管气相色谱柱的载气最佳线速度,并应用于同分异构体的色谱分离分别用十二烷、苯酚、苯胺、醋酸丁酯作试祥在不同载气线速条件下对不同口径、不同膜厚、不同柱温的SE-30毛细管色谱柱的柱效进行考察,并在最佳线速度条件下分离异戊醇、硝基氯苯、硝基甲苯及二乙苯同分异构体体系。
-
The separation of tocopherols and tocotrienols by using the method of adsorption chromatography on silica and on silica impregnated with silver nitrate have been discussed. Satisfactory separation could be obtained with argentation column chromatography by eluting batchwise with n-hexane containing increasing amounts of diethyl ether. More than 90% of vitamin E amount in eluate was tocotrienols.
以乙醚正己烷混合溶液为淋洗液,探讨了硅胶柱层析和硝酸银硅胶柱层析分离生育三烯酚和生育酚的效果,结果表明:通过改变淋洗液中乙醚含量可以将生育酚和生育三烯酚大部分分离:硝酸银硅胶柱层析分离生育三烯酚和生育酚的效果明显高于硅胶柱层析,其洗脱液中生育三烯酚可占V〓总量的90%以上,最高达98.47%。
-
The fluid flows and heat coupled calculation method is used. The standards two equations turbulence models, velocity and pressure coupled arithmetic are used.According to the results of numerical simulation analysis the local coefficient distribution changes along the pin fins.Study the effection that its height and shape of the pin fins have on the average Nu and the average number of pressure loss coefficient Eu.The circle-shaped and elliptic-shaped pin fins have different circumcolumnar regional,therefore the mixed conditions are effected.
数值计算中采用标准双方程湍流模型,速度压力耦合算法;根据数值模拟的结果分析沿扰流元的局部换热系数分布变化,研究其扰流柱高度及形状对扰流柱通道平均努赛尔特数Nu和平均压力损失系数Eu的影响,圆形和椭圆形扰流柱的绕流尾涡影响的区域的不同对扰流柱群内流体混合状况的影响。
-
The epoxide groups of the column were modified by a reaction with diethylamine that affords ionizable functionalities required for ion exchange chromatography. The influences of the contents of the cross-linker and porogen on column pressure were investigated.
考察了交联剂及致孔剂用量对色谱柱压力的影响,发现:随着交联剂用量的减小,致孔剂用量的增大,柱压下降;当交联剂和致孔剂用量达到一定水平后,柱压变化不再明显,但柱体机械强度降低。
-
The relative formula between axial pressure ratio and hooped reinforcement ratio of short column is obtained. The suggested limit values of axial pressure ratio and minimum hooped ratio of short columus are put forward through the test, which satisfy certain requirement of ductility.
通过试验对高强混凝土短柱的破坏特性和滞回特性进行了分析,分析了影响高强混凝土短柱延性的主要因素,得出了满足一定延性要求的高强混凝土短柱的轴压比和配箍率的关系公式;同时提出了满足一定延性要求的高强混凝土短柱的轴压比限值和箍筋加密区的最小配箍率的建议值。
-
Pistillata. However, the mean growth rates of S. pistillata in two mesocosms at 25℃ were significantly different. The mean growth rates of S. hystrix in two mesocosms at 28℃ were significantly different and did not show a consistant relationship compared to those of S. pistillata. The mean growth rates of S. hystrix in two mesocosms at 20℃ were significantly different, but those of S. pistillata were the same.
在25℃的2个生态箱之间,尖枝列孔珊瑚的平均生长率相似,并且大部份都显著高於萼柱珊瑚,而萼柱珊瑚的平均生长率则显著不同;然而,在28℃的2个生态箱之间,尖枝列孔珊瑚的平均生长率变异较大,与萼柱珊瑚的平均生长率比较并无一致的趋势;在20℃的2个生态箱之间,萼柱珊瑚的平均生长率相似,尖枝列孔珊瑚却有显著不同。
-
Hystrix at 25℃(S. pistillata: 0.0126±0.0045 g/g*day; S. hystrix: 0.0253±0.0081 g/g*day) were significantly higher than those at 28℃(S. pistillata: 0.0066±0.0027 g/g*day; S. hystrix: 0.0083±0.0046 g/g*day) and 20℃(S. pistillata: 0.0058±0.0014 g/g*day; S. hystrix: 0.0047±0.0022 g/g*day).The mean growth rates of S. hystrix in two mesocosms at 25℃ were similar and significantly higher than those of S.
结果发现,萼柱珊瑚和尖枝列孔珊瑚群体的平均生长率在25℃(萼柱珊瑚:0.0126±0.0045 g/g*day;尖枝列孔珊瑚:0.0253±0.0081 g/g*day)皆显著地高於28℃(萼柱珊瑚:0.0066±0.0027 g/g*day;尖枝列孔珊瑚:0.0083±0.0046 g/g*day)和20℃(萼柱珊瑚:0.0058±0.0014 g/g*day;尖枝列孔珊瑚:0.0047±0.0022 g/g*day),显示25℃较适合这两种珊瑚的生长。
-
C arbitrarily inequiaxial T-shaped, L-shaped and "十"shaped columns subjected to 792 load conditions is calculated using compiled C++ programme. On the basis of calculation results, the factors influencing the worst load orientation are analyzed and load orientation of the least curvature ductility of three kinds of sections is presented.Furthermore a analysis of failure mechanism for R.
本文采用非线性全过程分析方法,采用C++语言编制了不等肢异形柱截面曲率延性比的计算程序,首先计算了不等肢T形、L形和十字形柱在792种工况下的截面曲率延性比,在此基础上分析了影响不等肢异形柱截面延性的最不利荷载方向的各种因素,并得出了这三种截面不等肢异形柱在上述工况下的截面延性最不利荷载方向。
- 推荐网络例句
-
The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.
采用不同浓度K2CrO4(0,0.4,0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗,测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。
-
By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.
通过分析数学形态学在图像中的理论基础,研究二值图像的形态分析算法,探讨最小结构元素的两种基本形态:膨胀和腐蚀;分析了数学形态学复杂算法的基本原理,把数学形态学的部分并行处理理念引入到家实际应用中。
-
Have a good policy environment, real estate, secondary and tertiary markets can develop more rapidly and improved.
有一个良好的政策环境,房地产,二级和三级市场的发展更加迅速改善。