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The effect of temperature and carbon dioxide on the acerbity , texture, color and soluble component in persimmon were studied.

试验以新鲜涩柿果为原料,采用CO2脱涩法对柿子进行脱涩,研究了温度和CO2浓度对柿果的涩度、硬度、可溶性固形物含量的影响。

The extract of acetyl acetate have been studied on inhabited effect of 4 species bacteria.

乙酸乙酯萃取物对4种细菌的抑菌试验表明,其对枯草芽孢杆菌的抑制效果最好。

The optimal conditions were found as follows: reaction temperature 90℃, reaction time 50 min, the molar ratio of catalyst to diethyl adipate 1.1:1, providing 99.5% yield.

结果表明,各试验因素的影响效能为反应温度(反应时间(催化剂用量;最佳合成条件为反应温度90℃,反应时间50 min,催化剂与原料的摩尔比为1.1:1,在此条件下,常压合成目标物的产率可以达到99.5%。

The main factors affecting the soil-structure interface behaviors were found experimentally and theoretically, including: 1 the thickness of the interface that is five to six times the average grain size of the soil; 2 the aeolotropy of interface, which is responsible for anisotropic response of the stress-strain response of the interface; 3 two physical states, including crashing and compression of the soil near the structure surface, which govern the stress-strain response of the interface strongly; 4 two shear deformation components due to sliding and constraint of the structure surface relative to the soil respectively, which forms the deformation of the interface; 5 the volumetric strain due to dilatancy, which is found to be composed of a reversible dilatancy component and an irreversible dilatancy component. 4. A unified constitutive model of the interface, based on new elasto-plasticity damage theory, was developed. It was confirmed to be effective for the conditions considering monotonic and cyclic shearing, coupling effect of shear and volumetric strains, evolution of physical state, micro-structure aeolotropy of the soil and the resulting aeolotropy of the interface as well as the three normal boundary conditions stated above. 5. 2D and 3D finite element formulations of the present model were derived and incorporated into the FEM codes. They were applied to the evaluation of practical engineering problems with different typical interfaces between soil and structure. The new model was shown to be reasonable and effective.

确定了粗粒土与结构接触面厚度约为5~6倍的平均粒径,首次揭示了接触面的细观结构异向性以及由此所引起的宏观剪切异向性,发现了在单调和往返剪切荷载作用下土颗粒破碎和剪切压密两种物态变化机制共同支配着接触面力学性质的变化,通过细观分析证实了接触面的变形可分解为一般同时发生的土与结构交界面上的滑移变形以及结构面位移约束范围之内土体本身的剪切变形两部分,观测到接触面受剪时表现出明显的相对法向位移,并可分解为可逆性和不可逆性两个分量;(4)建立了第一个能够统一地描述单调与往返剪切特性、剪应变与体应变耦合特性、细观结构和宏观剪切异向性以及土颗粒破碎等物态变化特性的土与结构接触面弹塑性损伤本构数学模型,并采用多种法向边界条件复杂加载路径的试验成果验证了新模型的合理性和有效性;(5)提出了新模型的二、三维有限元格式并结合实际边值问题进行了应用计算分析,比较了不同接触面本构模型对计算结果的影响,证实了新模型及其有限元格式不仅能够合理地描述土与结构接触面的主要力学特性,还能够较好地反映土体与结构物在接触面处的滑移、脱开等不连续现象。

The Etest is an altenmative to agar dilution method for gonococci susceptibility testing to ceftriaxone,penicillin and ciprofloxacin due to its rapid,effectiveness and significant relationship with agar dilution method.

菌株来源实验菌株均从我所STD门诊患者的泌尿生殖道分泌物中分离得到,所有菌株经革兰染色、氧化酶试验和糖发酵试验证实为淋球菌传代一次,洗于脱脂牛奶中,于- 78℃低温冰箱冻存备用。2 。

Finaly many experiments are completed in the lab in diffrient conditions , which contains illuminance of crack 、 contrast of image 、 distance of shotting and focal length, to review the accuracy of the new system and to analys the rule of th effection of the accuracy .

在论文的后阶段,设计了实验室中进行的两个层次的考核和标定试验,并对应用中必然遇到的物面光照度、图像对比度、测量距离和焦距的改变,对试验样本测量精度的规律作出了初步分析,为新方法的进一步完善提供了有价值的工作基础。

Fifteen japonica and 15 indica rice cultivars were grown in the field for two crop seasons both in Taipei and Taichung. Samples were taken at 4 different growth stages (booting, heading, milky and dough stage) during each season to obtain data of leaf atea index, leaf area duration, leaf N concentration, the amount of dry matter accumulated , crop growth rate, and net assimilation rate.

本试验以稉秈稻各十五个品种为材料,分别於台北及台中进行两期作之田间试验,并於孕梗期、抽梗期、乳熟期及糊熟期取样,测定叶片氮素浓度、叶面积及总乾物重,并求叶面积指数、叶面积持续期、作物生长速率及净同化率。

The concents of testosterone and NO of the mouses gavaged with high dosages of Chinese chive extractiong were not significantly more than that of giving middle dosages.This indicated that Chinese chives might be more safe than traditional chinese herbals of sexual improvement function.2、The screening of sexual improvement function chemical substances of Chinese chivesThe crude extract was leached to four phases by petroleum ether, ethyl acetate,n-butanol and water.By doing animal tests to detect the contents of testosterone and NO in serum of mices,the result was showed that the extracts of petroleum ether and n-butanol have sexual improvement function,especial the n-butanol phase.

从小鼠灌喂不同剂量的韭菜提取液试验结果来(来源:ABCa539a5论文网www.abclunwen.com)看,灌胃高剂量的小鼠的睾酮含量和NO含量相对于中剂量来说并不上升,而是保持稳定,因为睾酮含量和NO含量过度上升可能会带来付作用,所以由此可以说明其食用安全性高,副作用小。2、韭菜改善性功能物质的筛选将韭菜粗提物依次通过不同溶剂萃取,分成石油醚、乙酸乙酯、正丁醇和水四个萃取相,通过小鼠灌胃的动物试验,以小鼠血液NO含量和睾酮含量为指标,发现正丁醇和石油醚萃取相中的物质有改善性功能的效果,尤其是正丁醇相效果非常显著。

Toxicity testing of fire effluents; part 4: the fire model furnaces and combustion apparatus used in small-scale testing

燃烧废物的毒性试验。第4部分:燃烧模式小型试验中使用物燃烧炉和燃烧仪表

Though geological structures in metallic ore areas are very complex and seismic method for ore exploration is still in experiment phase, potential of the method in the future ore exploration can be found from primary experiment effects of seismic method, as the method possesses larger prospecting depth and less ambiguity as well as higher precision to distinguish underground target.

尽管金属矿区的地质构造十分复杂,金属矿勘查中的地震方法技术还处于试验应用研究阶段,但由于该方法探测深度大、多解性少、分辨地下目标物的精度高,从该方法的初步试验效果就能看出地震方法在今后金属矿勘查中的潜力。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力