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Accord- ing to the observation that the compounds were stable in low pH aqueous solution and their sta- bility decreased when pH increased, and they rapidly decomposed to form α-methylenecyclopen- tanones derivative when pH reached 6 to 7, we postulated that the compounds were unabsorbable in stomack (where pH1-3) and unstable in small intestine (where pH5-8). The decomposed product was indeed inactive.

对Ⅰ类化合物在稀溶液中的稳定性研究表明,低pH时化合物较稳定,随着pH值的升高稳定性逐渐降低,pH6~7时,化合物迅速分解成α-亚甲基环戊酮类化合物,由此而推测Ⅰ类化合物经口给药无效的原因为:它们在强酸性的胃中(pH1-3)呈离子状态,因而不易吸收,经胃的排空运动进入肠道后,随着pH逐渐升高(pH5-8)化合物迅速分解,而分解产物α-亚甲基环戊酮类化合物证明是无效的。

The level quickly rises as, one by one, the stranded passengers and captain end up dead – brutally slain in the most horrible way they each could imagine – in this cryptic thriller that takes terror into unchartered waters.

原本平静的周末外出。但对于5位度假者而言,当游船的领航员在晚上消失的无影无踪后,一次梦幻之旅迅速转变成恶梦。水平面迅速上涨,一个接一个,陷入困境乘客和船长相继死去–以他们能够想象的最残忍的方式被杀害。

The concentration of CWS was measured use drop method, as well as the viscosity characteristics was studied use rolling viscosimeter.

神华煤液化残渣的燃烧在低温段非常强烈,在150℃区间内迅速挥发完毕,试验样品的质量迅速下降,燃烧产物的50%以上是在这个阶段进行,说明神华煤液化残渣前期燃烧反应能力很强。

For vortex-liquid phase,the E-J relation could be described according to the Kim-Anderson model:U=U0(1-J/JC).While for vortex-glass phase,the electric field decays verydramatically with decreasing current density,so it is difficult to be observed with theinstrument has limited precision.In the intermediate current region,the E-Jrelations of the both phases could be fitted in terms of a phenomenological model:U=(U0/μ)[μ-1],it was concluded that the sign of μ-value changes fromnegative to positive when the temperature decreases lower than the glass-transitiontemperature Tg,meanwhile,the activation energy U enhances dramatically.Whilein the large current region,Zeldov's logarithmic model was suitable for fitthing theE-J curves of the both phase.Moreover,there was no abrupt change of U or thecharacteristic current density IC.However,the effective radius of vortex line variesremarkably around Tg.

对于涡旋液体相,小电流区的E-J关系可以用计及反跳的Kim-Anderson模型U=U0(1-J/JC)来描述,而对于涡旋玻璃相,小电流区的电场随电流密度减小而迅速衰减,以致很快脱离了实验测量精度的范围;在中等电流区,两相的E-J关系可以用共同的唯象过渡模型U=(U0/μ)[μ-1]来拟合,得到在玻璃转变温度Tg两侧μ值由正到负的变化,同时激活能U在Tg以下迅速升高;在较高电流区,两相的E-J关系可以很好的用Zeldov对数模型来描述,拟合结果表明U在Tg两侧的趋势没有明显变化,但是涡旋线的有效半径发生了显著变化。

Thus, the photosensitizers are expected to degrade more rapidly in the environment.5. Na2Fl shows no obvious algaecidal activity with or without illumination, however, the other five xanthene derivatives shows approximately similar inherent toxicity and phototoxicity.

实验证实,呫吨类化合物在自然条件下能在发挥光敏生物活性的同时迅速降解为小分子化合物,残留量少,同时,其降解中间产物和终产物的光敏生物活性也迅速降低,对环境的潜在风险很小。5。

The results show that, with the increase in ionic strength, the adsorbed amount of taurine on the resin D290, the distribution coefficient λ and the fraction of zwitterion Tau(superscript ±) all decrease, while the pH value of the solution at the equilibrium and the content of anionic taurine Tau(superscript -) increase. Moreover, it is found that, at a certain taurine concentration, the increase in ionic strength may improve the selectivity of the anion resin for taurine.

研究结果表明:(1)随着溶液离子强度的升高,阴离子树脂对牛磺酸的平衡交换吸附容量逐渐降低,牛磺酸在树脂上的分配系数λ逐渐下降;(2)随着溶液离子强度增大,达到平衡时液相的pH值升高,溶液中牛磺酸阴离子Tau含量迅速增加,而牛磺酸两性离子Tau含量迅速降低;(3)在一定的牛磺酸浓度范围内,溶液离子强度增大,有利于提高离子交换树脂对牛磺酸的选择性。

Afterwar, as the rapid development of science and technology, on the times of complete liberal economy rise quickly of the position as soft resource and be gone forever.

战后,随着科学和技术的迅速发展,完全自由经济的时代上随着软资源地位的迅速上升而一去不复返。

It is indicated that loosely compacted soil is of strain-softening behaviour under undrained conditions, accompanied with a rapid increase in excess pore water pressure. In anisotropically consolidated constant shear stress tests, a very small axial strain was required to induce the failure and the excess pore water pressure increased quickly at failure.

研究表明:松散填土在不排水条件下具有应变软化的特性,软化过程中伴随着孔隙水压力的迅速上升,有较高的液化势;在常剪应力排水剪条件下,具有破坏前轴向应变小、破坏时间短,破坏过程中孔隙水压力迅速上升。

Added with Astringent Essence、aweto extraction, it penetrates into skin pores rapidly and balance surplus lipid, thus to prevent pore block, herpes and acne.

添加了毛孔收缩精华素、中草药提取液,能迅速深入皮肤毛孔,平衡多余油脂,防止毛孔阻塞及粉刺的产生,加速细胞新陈代谢;令毛孔细致,令任何失去光泽的肌肤迅速恢复光滑嫩白,呈现细致透明感。

Erect panicle varieties grown in the north excluding Liaoning province have some relationships with Balilla. For the whole aspects, the erect property was not typical, and merely semi-erect.

自20世纪90年代以来,辽宁省直立穗型水稻品种的种植面积迅速扩大,年种植面积从100多万亩提高到400多万亩,种植比例也迅速提高,从15%左右提高到50%以上,1999年高达63.6%。

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