查询词典 delayed effect

Paired t-test was used to compare the intensity value.Results:After having injected FX530,enhancement of liver on grey scale imaging was divided into four continuous phases-arterial,phase,portal veinous phase,capillary phase and delayed vascular phase,three phases in kidney—arterial,capillary and delayed vascular phases,but no parenchyma enhancement appeared in testis.Parenchyma enhancement in liver showed"detained enhancement",while in kidney it showed "wash-in and wash-out".

结果：造影后，肝脏二维灰阶增强分为四个连续的时相即动脉相、门静脉相、毛细血管相和延迟血管相，实质增强有&滞留增强&现象；肾脏二维灰阶增强分为动脉相、毛细血管相和延迟血管相，肾实质增强表现为一过性；睾丸仅表现为血管增强，睾丸实质无增强。

Stacked PIN diodes in parallel and series operate at a hold-off voltage of 8.0 kV,and the dV/dt is promoted from 2.4 kV/ns to 3.2 kV/ns. Delayed breakdown device ; PIN diode ; Delayed breakdown

因此在输入脉冲 dV/dt很快的情况下，二极管会产生很高的过压，这时空间电荷区的电场强度远远大于雪崩击穿的临界场强，电子和空穴的电离率非常高，导致二极管在很短的时间内击穿，这个现象被

To investigate the relationship between delayed fluorescence change and chlorophyll content of Gerbera hybrida ray floret during its development (from P1 period to P6 period), delayed fluorescence analysis of Gerbera hybrida ray floret during its development was done.

以非洲菊Gerbera hybrida为研究对象，对其生长发育过程（P1-P6期）中外轮舌状花进行延迟荧光（delayed fluorescence， DF）分析，并利用激光共聚焦成像系统对其各期表皮细胞中叶绿素的分布和相对含量进行检测，以研究非洲菊外轮舌状花发育过程中延迟荧光改变与其叶绿素变化的关系。

Based on the structure and principle of the CEFR delayed neutron detection system, a calculating model of the delayed neutron detection signal was proposed.

根据中国实验快堆缓发中子探测系统的结构特点和探测原理，构建了缓发中子探测系统的计算模型。

The analysis shows that when λ is amended the resolution of single group delayed neutron model is approximately equal to the numerical solution of six groups delayed neutron model, which meets engineering accuracy.

结果表明：采用修正后的单组解析方法计算阶跃正反应性输入的中子密度响应，计算结果与六组的接近，满足工程计算精度要求，同时计算简便，避免了刚性问题，可以实现快速计算。

In the paper, a way of amending λ was introduced to solve the point-reactor neutron kinetics equations so that the numerical solution of single-group delayed neutron model is closed to that of six groups delayed neutron model when a positive step changed reactivity was introduced.

通过修正单组缓发中子先驱核衰变常量λ值，使点堆中子动力学方程单组缓发中子模型在正反应性阶跃输入时的数值计算结果趋近于六组缓发中子模型数值计算结果。

After we checked in for our flight to CUZ in the Lima airport, we saw the flight status board showing that the earlier CUZ flights were delayed. We didn't know what happened, but when our 7.40am flight was also delayed, oh… bad weather in Cusco.

在 Lima 机场办理到 CUZ 的机票后，当我们看到航机起程的营幕出现 CUZ 早机都延时，也没理解何故，当我们的7.40am 班机也延时，才晓得，噢…Cusco的天气恶劣。

Optimal mixing ratio of SRA as delay forming agent in cement treated base is 0.05%-0.06%; the influence of compacting delay on strength and dry density of road base may be reduced by SRA additive, forming time may be delayed to 9h; after the forming time is delayed to 4h, 6h and 9h, the strength and dry density shrinkage of cement-treated base with SRA admixture are much less than that of those without SRA.

SRA用作水泥稳定粒料路面基层的延迟成型剂的最佳掺量在0.05％～0.06％：用SRA可降低因延迟压实对水泥稳定粒料基层的强度和干密度的影响，可把延迟成型时间延长到9h；在成型延迟4h，6h，9h后，掺入SRA的水泥稳定粒料的强度和干容度损失明显小于未掺外加剂的混合料在相同延迟成型务件下的强度损失。

From the results obtained in the study, the following conclusions can be made:The methylene blue and spectrophotometer method can capture the free radicals generated successfully. This is an effective way to measuring the free radicals quantitatively in cavitation, moreover it is easy to fulfill.The intensity of cavitation increases with reduction in the cavitation number. But the different mechanism of various enhancive processes (chemical and physical processes) results in different effect by cavitation number.The effect of operating parameters, such as inlet pressure, temperature and time on cavitation indicate that optimum operating conditions exist at the cavitation enhancive effect is maximum.It is important to optimize the structure of hydrodynamic cavitation reactor for achieving a desired effect. A reasonable geometric parameter can promote the enhancive effect for a fixed hydrodynamic condition.Ventilating appropriate gas to cavitating flow can increase cavitational intensity and hence promote the enhancive effect of hydrodynamic cavitation.

研究结果表明：亚甲基蓝分光光度计法，能够成功地捕捉到水力空化产生的羟自由基，是定量检测空化自由基简便易行的有效方法；空化程度随空化数的减小而增强，但对于不同的强化过程，因其强化机理不同，故空化数对强化效应的影响也不同；水力空化系统的压力、温度及时间等操作参数对空化强化效应的影响规律表明：在适宜的操作条件下可产生最佳的空化强化效果；空化发生器结构的优化设计是保证空化强化效应的重要前提，在一定的水力学条件下，合理的结构尺寸可以增强空化作用效果：往水流中适量加入干扰气体能够提高空化强度，增强空化强化效果。

Five models were used to investigate the "Changdong"" s anti-tumor effect: mice S180 sarcoma solid model, mice liver cancer H22 solid model, mice Lewis lung cancer model, as well as human liver cancer QGY and colon cancer LOVO implanted in naked mice; mice liver cancer H22 was also used to evaluate the enhancive effect of "Changdong" when it was co-applied with other anti-tumor agent or with radiotherapy; The "Changdong"" s cytotoxic effect in vitro on such tumors as QGY, LOVO, lung cancer A549, breast cancer MCF-7, as well as mice leukemia P388 was observed through MTT method. And investigate the effect of "Changdong" on proliferation of spleen lymphocyte, on activity of NK cell and on synthesis of IL-2 in mice bearing Lewis lung cancer, respectively. With propidium iodide straining, cell aigptosis and cell circle were analyzed by flow cytometry. Result:"Changdong" has an evident tumor inhibitive effect on mice tumor model as well as human tumor implanted in naked mice with a quantity-effect relationship.

使用小鼠S180肉瘤、小鼠肝癌H22实体瘤和小鼠Lewis肺癌模型，以及人体肝癌QGY和人体肠癌LOVO裸鼠异种移植模型，进行"长动"的抗肿瘤药效学研究：用小鼠肝癌H22进行"长动"合并放疗和化疗的增效作用研究；用MTT法进行"长动"对肝癌QGY、肠癌LOVO、肺癌A549、乳腺癌MCF-7、小鼠白血病P388等10株人体和动物肿瘤细胞的体外细胞毒性作用研究；用淋巴细胞转化试验、小鼠NK细胞活性试验、小鼠胸腺细胞增殖法分别测定"长动"对荷Lewis肺癌小鼠的脾淋巴细胞增殖的影响、自然杀伤细胞活性的影响和对小鼠产生白介素-2(IL-2)的影响；用流式细胞仪PI单染色法进行"长动"对人体肝癌QGY细胞的体外诱导凋亡作用和对肿瘤细胞周期的影响的研究。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。