查询词典 screening effect

This product works on the principle that the inertial vibrating riddler almost reaches resonance. It had a high rate of screening and big swing of the screening machine that it does not jam the screen sieve. It is also of great adaptability to materials. The main vibrating spring uses cutting rubber spring which has low noise, and a long life. It is sealed to prevent environmental pollution. The working efficiency is 3 times than that of the original frequency. It has a good anti-vibrating effect.

该机采用惯性共振系统在近共振状态下工作，单位面积筛分效率高，筛机振幅大不堵筛，对物料适应性强，主振动弹簧选用剪切橡胶弹簧，设备噪音低，寿命长，机壳密闭性好，环境污染小，工作效率为阁振系统固有频率的三倍，有良好的隔振效果。

A prediction model has been proposed to deal with threshold voltage shift as a function of 1MeV neutron flux and gate oxide thickness, and to deal with room-temperature annealing of threshold voltage shift induced-by 〓Coγ as a function of electric field and gate oxide thickness. The commonness and individuality of MOS device degradation between hot-carrier effect and ionizing radiation were investigated. The dependence of substrate current, gate current and threshold voltage shift due to hot-carrier on gate oxide thickness were simulated with MEDICI-2D simulator. The photocurrents of PN junction and bipolar transistor were studied. Their transient responses on varied bias voltages, pulse durations and absorbed doses were simulated. The influences of NPN base width on base and collector photocurrents were investigated. We also studied 1MeV neutron displacement damage in PN junction, and calculated reverse current leakage under the neutron flux of 2. 67×10〓 per square centimeter. 3 The study of nondestructive screening method for MOS radiation tolerance A theoretical and experimental study of nondestructive screening methods for radiation tolerance of nMOS and pMOS were firstly fulfilled. We determined the informative parameters pertinent to the method and proposed how to deal with experimental data and verify obtained results statistically, as well as make the required steps for nondestructive screening. Based on the experimental data of 180 samples of discrete pMOS devices, the relation between sample quantity and correlation coefficient, screening equation, and other significant results were obtained from the threshold voltage shifts of pre-and post-irradiation samples.

二、分立器件电离和位移辐射损伤响应研究在国内首次开展了电离辐射引起的氧化层阈值电压漂移和退火理论研究，编程计算了1MeV中子引起的MOS器件阈值电压漂移与中子通量及栅氧厚度的关系，计算了〓Coγ光子引起的阈值电压漂移及退火的时效曲线与纵向电场和栅氧厚度的关系等，对评估MOS型集成电路电离损伤和加固方法研究，以及论文中开展的MOSFETs无损筛选方法研究奠定了基础；分析了MOS器件热载流子损伤效应与辐射电离损伤效应之间的异同性，利用二维模拟软件MEDICI-2D模拟了衬底电流和栅电流，在不同栅氧厚度下随栅压的变化曲线，计算了热载流子效应造成的阈值电压漂移，研究结果对当前存在的以热载流子效应研究取代电离辐射损伤实验研究的设想，具有重要的参考价值；开展了PN结和双极晶体管电离光电流研究，计算了不同偏压、不同辐射脉宽和不同吸收剂量下PN结光电流的瞬时响应，计算了不同辐射脉宽下NPN晶体管基极电流和收集极电流的瞬时响应，以及基区宽度对NPN晶体管光电流的影响，研究结果对双极器件抗电离辐射损伤响应及加固方法研究具有重要意义；在国内首次开展了器件位移损伤的理论研究，分析了辐射产生的缺陷对电性能的影响，计算了注量为2.67×10〓cm〓的1MeV中子产生的缺陷对PN结反向电流的影响。

Screening Room is a strain, the effect of Health measurement room, processing room, and other forms of scientific research facilities, a strain breeding, toxicity screening, new product development, production process technology updates, transformation and application of international standardization, such as the ability to detect, keeping perennial DBM, Pieris rapae, Spodoptera litura, Culex, mosquitoes and other insects and training of a variety of microorganisms.

现具备菌株筛选室、药效生测室、剂型加工室等科研设施，具有菌种选育、毒力筛选、新品开发、生产工艺流程技术更新、改造和应用国际标准化技术检测等能力，常年饲养小菜蛾、菜青虫、斜纹夜蛾、库蚊、伊蚊等多种实验昆虫和培养多种微生物。

In the first section, we analyze the effect of allocation of credit screening power on the bank"s performance, and find that the bank"s allocation of credit screening power has no significant effect upon its performance.

第一节，文章实证分析了银行信贷审批权的配置对银行经营绩效的影响，以大银行为分析样本，发现银行信贷审批权配置对其经营绩效并没有显著影响。

The screening effect of the QCSE in the implemented white-light LED is quite small.

并且发现此样品对量子局限史塔克效应的影响是相当小的。

The trapped charge screening effect of poly-Si film is also observed when the devices with large defect densities.

另外，我们观察到了缺陷密度对於闸极电压和通道厚度之间的关系有很大的影响。

BACKGROUND: The European Randomized Study of Screening for Prostate Cancer was initiated in the early 1990s to evaluate the effect of screening with prostate-specific-antigen testing on death rates from prostate cancer.

背景：欧洲随机筛查前列腺癌的研究开始于上世纪90年代初，此项研究旨在对采用前列腺特异性抗原检测筛查列腺癌死亡率的有效性进行评估。

Therefore, we utilized the proposed method to synthesize CNT pillars to reduce the screening effect via the pillar density control.

因此，我们使用铁钛共镀催化金属方式来合成柱状结构的奈米碳管，并利用微影方式控制柱体密度，来降低电场遮蔽效应。

However, due to the screening effect of the metallic femoral head, bone changes within the femoral head have not been quantified clinically.

然而，由于金属股骨头不透X线，临床上股骨头骨变化没有量化。

Nuclear electromagnetic pulse ; interference ; protection ; coaxial cable ; pulse screening effect.

核电磁脉冲；干扰；防护；同轴电缆；脉冲屏蔽系数

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。