无反应的

After microinjection of the antagonists of glucocorticoid RU 38486 or mineralocorticoid spironolactone (40 ng/0.1 ul/site, respectively) into the rVLM bilaterally, a decrease in BP, HR and the pressor response induced by the dPAG stimulation was observed in the normotensive rat, and there was no change on the tachycardiac response induced by the dPAG stimulation.

分别微量注射糖、盐皮质激素的拮抗剂RU 38486(40ng/0.1μl/site)或螺旋内酯(40ng/0.1μl/site)至双侧rVLM，则引起正常血压大鼠的BP下降、HR减慢，以及电刺激dPAG诱发的防御性升压反应减弱，对电刺激dPAG诱发的加快心率反应无明显改变作用。

Further studies are underway to investigate the exact intracellular mechanisms underlying the effects of the two substances. In Chapter 4, we observed the effects of metabolites of mangrove fungus Xylaria sp. from the South China Sea Coast, Xyloketal A～D, on the activity of acetylcholinesterase in vitro, and the present data indicated that AChE activity was remarkably inhibited by Xyloketal A～D in a dose-dependent manner.

另一方面，在论文第3章离体豚鼠回肠收缩实验中，发现323-A和323-B可剂量依赖性地抑制组胺、乙酰胆碱以及氯化钾所引起的GPI收缩，pD2'依次为5.13、4.97、5.36和5.51、5.56、5.62，并且，通过机制分析发现，323-A和323-B可以显著降低在外界无钙离子存在时由细胞内钙储库释放钙所产生的收缩反应，而对由细胞外钙离子内流所引起的收缩无明显影响。

For the aerobic oxidation of benzyl alcohol reaction,metallic palladium supported on the SiO_2-Al_2O_3 support was used as catalysts.

研究主要涉及以氧气为氧化剂的苯甲醇选择氧化反应和在惰性气氛中无氢受体存在的条件下的苯甲醇氧化脱氢反应两部分。

A new view of reaction mechanism of polyethylene grafted maleic anhydride was put forward based on experiment results.(4) EDA has obvious inhibition ability to the cross-linking by-reaction of PE grafted MAH ,which can show MI increase and stabilization with the EDA increasing.

在PP接枝MAH的研究中发现：（1）PP/DCP反应挤出体系呈现典型的降解过程，表现为MI随DCP增加而显著上升，EDA对该体系的降解无抑制作用；（2）在PP/DCP/MAH反应挤出接枝体系中，随DCP增加，MI上升而Gx下降；随MAH增加，MI下降而Gx呈上升趋势。

On the other hand, the molybdenum species of Mo/HZSM-5 catalyst is reduced and carburised during the aromatization of CH4 and this leads to the formation of different kinds of molybdenum species.

Mo／HZSM-5具有较好的甲烷无氧芳构化性能，但迄今在Mo／HZSM-5仅进行了甲烷的无氧芳构化研究，尚未实现甲烷的有氧芳构化反应。

A method was developed for synthesis of DBP catalyzed with non-proton acid and the result showed that aluminum oxide can be used to synthesize dibutyl phthalate characterized with high reaction activity,good selectivity and high rate of conversion,but less environmental pollution.

通过研究非质子酸催化合成增塑剂邻苯二甲酸二丁酯的方法，探讨了合成的最佳工艺条件。实验结果表明，Al2O3催化酯化合成邻苯二甲酸二丁酯具有反应时间短、反应活性和选择性好、产率高、无环境污染等优点、是理想的合成DBP的催化剂。

Through modifying proportions of potassium nitrate, sulfur, phenolophthalein and potassium hydrate, formula of charcoal-free black powder is optimized by replacing charcoal with reactant of phenolphthalein and potassium hydrate.

以酚酞和氢氧化钾的反应物替代木炭，通过调整硝酸钾、硫磺、酚酞及氢氧化钾的混合比例对无木炭黑火药配方进行优化设计，对比研究了普通黑火药与无木炭黑火药在机械感度、静电火花感度、热分解过程及输出特性等方面的差异。

In this paper,the phase diagram of the aqueous solution system of potassium chloride and ammonium sulphate is calculated,analyzed and compared with that of such aqueous solution system into which certain amount of methanol is added,and the yield of the reaction is caculated.

硫酸钾是一种优质无氯钾肥，由氯化钾与硫酸铵复分解制备硫酸钾是十分重要的生产方法之一，其反应可表示为2KCl+(NH4)2SO4=K2SO4+2NH4Cl该反应氯化钾转化成硫酸钾的转化率受到各组分在体系中的溶解度限制而较低[1，2]。

The results shows that the flow characteristics of SiC-AlN granulated powder is obviously promoted after spray drying and a suitable particles grade match. With the increasing of pressure, the density of green body increases by the style of ladder at the pressure range of 4080 MPa, 80160 MPa and 160220 MPa, the green body is uniform and densification without hard pelleted particles above 160 MPa. The pressureless sintering SiC-AlN multiphase ceramic possesses superior sintering properties and mechanical properties. It is due to the rampart formation of AlN to SiC grain growth and the reaction of SiC and AlN to form 2H solid solution. It results in the grain fining, crack expansion producing bypass and deflection, fracture section producing tearing-open and pulling-out effects, which cooperatively improves the strength and fracture toughness of the multiphase ceramics.

结果表明：喷雾造粒后，复合粉体的流动特性显著提高，粒度级配合理；随着压强增加，坯体密度在40~80、80~160和160~220 MPa范围内呈现阶梯式增长，160 MPa以上成形后素坯均匀致密，无硬球颗粒存在；无压烧结SiC-AlN复相陶瓷具有优越的烧结性能和力学性能，这是由于AlN对SiC晶粒形成生长势垒，并反应生成2H型固溶体，从而细化晶粒，导致裂纹扩展产生了绕道与偏转效应，呈现晶粒撕裂与拨出现象，协同改善了复相陶瓷的强度及断裂韧性。

The mechanism to remove carbon disulfide in one step was confirmed by the experiment design.

通过无氧、有氧试验设计以及反应产物分析，推断出耦合催化脱除二硫化碳的宏观反应历程，认为二硫化碳的水解是催化耦合过程的控制步骤。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。