反应的

To evaluate the vascular response in relation to baseline, adjusting for systemic effects and skewed data, we expressed the hyperemic response as the natural logarithm of the ratio of postdeflation to baseline pulse amplitude in the hyperemic finger divided by the same ratio in the contralateral finger that served as control.

为了评价血管反应性与基线血管反应的关系，校正全身性作用及偏离的数据，我们计算袖套排气后充血手指脉搏幅度与基线脉搏幅度的比率以及对侧作对照手指的脉搏幅度与基线脉搏幅度的比率，两比率之比取自然对数表示充血反应。

Methods 55 patients were treated with pelvic cavity fourfold radiography and conventional check before iodic allergic experiment.

方法选择门诊患者55例，均行四重造影检查，检查前常规行碘过敏试验阴性52例，用复方泛影葡胺为造影剂；用非离子型碘造影剂碘海醇为造影剂，观察造影过程中患者过敏反应，分析碘过敏反应的机制。

A method for synthesis of isobutyl acetate based on paratoluenesulfonic acid as catalyst was developed.

以冰醋酸、异丁醇为原料，对甲苯磺酸为催化剂合成乙酸异丁酯，通过正交实验考察了原料比、催化剂用量、带水剂用量和反应时间等因素对反应的影响。

The catalyst was prepared by isochoric impregnation and had strong basicity.

考察了催化剂制备条件和反应条件对酯交换反应的影响。

Using ab initio methods, three molecular reactions about Isocyanic acid were investigated in this thesis, that is :(1) HNCO+HCO→TS→NCO+CH2O (2) A:HNCO+CN→TS→NCO+HCN B:HNCO+CN→TS1→INT→TS2→HNCN+CO (3) HNCO+NO2→TS1→INT1→TS2→INT2→TS3→HNNO+CO2 The theoretical studies show that the reaction (2) may occur by two different reaction channels, A and B.

本论文采用量子化学从头算方法，研究了异氰酸下列三个反应的反应机理和速率常数。

Using ab initio methods, three molecular reactions about Isocyanic acid were investigated inthis thesis, that is :(1) HNCO+HCO→TS→NCO+CH2O (2) A:HNCO+CN→TS→NCO+HCN B:HNCO+CN→TS1→INT→TS2→HNCN+CO (3) HNCO+NO2→TS1→INT1→TS2→INT2→TS3→HNNO+CO2 The theoretical studies show that the reaction (2) may occur by two different reaction channels,A and B.

本论文采用量子化学从头算方法，研究了异氰酸下列三个反应的反应机理和速率常数。

The effects of reaction time, mole ratio of reactants and amount of catalyst on yield of ketal were investigated by using the [SO3H-bPy] [H2PO4] ionic liquid as catalyst. Results show that the ionic liquid was an efficient catalyst for the ketalization with high conversion and selectivity in mild conditions.

以磺酸基功能化的吡啶磷酸类离子液体[SO3H-bPy][H2PO4]为催化剂，系统考察了反应时间、酮与醇的配比、催化剂的用量及催化剂重复使用、不同阴离子、阳离子等因素对反应的影响，优化了反应条件。

The ketalization of cyclohexanone and 1,4-butanediol catalyzed by the Hβ zeolite was studied.Effects of reaction time,mole ratio of reactants and amount of catalyst on the yield of ketal were studied.Results showed that the Hβ zeolite was an efficient catalyst for the synthesis of ketal.

研究了Hβ分子筛催化1，4-丁二醇与环己酮的缩合生成新型七元环缩酮的反应，考察了反应时间、酮与醇的配比、催化剂用量、催化剂重复使用等因素对醛与醇缩合反应的影响。

The calculation results show that the SiH insertion reaction into HCl is thermodynamically dominant at low temperature and kinetically favored at higher temp...

该反应在研究的温度范围内是一放热、熵减少的反应，反应的速率常数随温度的升高而增大，而且服从Arrhenius定律。

The precursor of sodium titanate nanotubes is prepared by: reacting titanium dioxide, metatitanic acid or titanate ester in 20-80 wt.% NaOH aqueous solution at 100-140 deg.C for 12-72 h, washing with water, filtering and drying.

用于反应的前驱体纳米管钛酸钠由二氧化钛、偏钛酸或钛酸酯与20-80wt％NaOH水溶液在100-140℃反应12-72h后用水洗去NaOH，过滤、干燥制成。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。