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We observe gate current by biasing the gate at fixed voltage and gate direct tunneling current will show two or three levels. The cause is carriers trapping in the trap site during tunneling through gate dielectrics and detrapping by thermal emission.

透过给一固定的闸极电压观察闸极电流,闸极直接穿隧电流会在多个层次间振动,其原因来自於电荷在穿越闸极层时,会掉进闸极层里面的缺陷并被抓住,但又容易藉著热从缺陷中散逸。

Methods: The PP/porous PTFE/PP composite electret film was prepared with porous PTFE,polyethylene and PP by heat melting technique.The charge storage stability of the electret film and transportation were evaluated by using the methods of isothermal surface potential attenuation and open-circuit thermally stimulated discharge current spectra.

利用热融法将多孔PTFE、聚乙烯和PP制备成PP/多孔PTFE/PP复合膜驻极体,利用等效表面电位衰减和开路热刺激放电电流谱方法研究PP/多孔PTFE/PP驻极体的电荷储存稳定性及其输运规律。

Methods: The PP/porous PTFE/PP composite electret film was prepared with porous PTF'E, polyethylene and PP by heat melting technique. The charge storage stability of the electret film and transportation were evaluated by using the methods of isothermal surface potential attenuation and open-circuit thermally stimulated discharge current spectra.

利用热融法将多孔FTFE、聚乙烯和PP制备成PP/多孔PTFE/PP复合膜驻极体,利用等效表面电位衰减和开路热刺激放电电流谱方法研究PP/多孔PTFE/PP驻极体的电荷储存稳定性及其输运规律。

As a new technique in the field of microchannel phase-change heat transfer , micro capillary grooved heat sink can drive fluid flow by capillary force and creat enhanced evaporation heat transfer conditions by promoting the formation of an extended meniscus in the three-phase contact-line region of a microgroove.

作为一种新兴的微通道相变换热技术,毛细微槽群蒸发热沉由于能依靠毛细力驱动液体流动,并易于在微槽内三相接触线区域促进扩展弯月面薄液膜的形成,创造高强度的蒸发换热条件,因而能够被用来实现极高换热系数和热流密度的换热过程。

To determine the most effectie temperature, different heat shocks (32, 35 and 38 8C) were applied to newly fertilized eggs at 8–11 min post-fertilization to inhibit the extrusion of polar body 1 (PB1), and ended when the second polar body began to form in control groups.

在受精后8-11分钟,用不同的热激温度(32,35,38℃)抑制第一极体(PB1)的排放,待对照组开始出现第二极体时停止处理,以确定最佳热激温度。

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。

With the trend of utility, common customs and manifold, country religion is more and more autochthonous.

认为改革开放以来江浙乡村的&宗教热&具有与此前不同的三大特征:宗教信众的增加主要集中在一些经济极发达地区和一些经济极贫困地区,乡村宗教发展呈现出两极化的趋势;佛教、道教等本土化宗教继续衰落或复兴无力,而天主教和基督教这些非本土的宗教却在农村迅速拓展,呈现为&西教东热&的趋势;宗教信仰功利化、信仰群体多元化乡村教会世俗化,呈现为适应江浙乡村社会现实的本土化趋势。

We proposed that the non-adiabatic passage at zero-crossings of quadrupole splitting would not lead to the great loss of the spin locking signals, and the second-order quadrupolar interaction had significant effects on triple-quantum coherences, which was responsible for the fast decay of the signals; the both experiments and numerical simulations supported this point of view.

另外,在该谱仪上还进行了四极核钠-23的自旋锁定效率的研究;从含时Shr〓dinger方程出发,提出了一个更为确切的四极分裂过零处的绝热通过判据,并指出四极分裂过零处的非绝热通过不会导致锁定信号的快速消失,四极相互作用的二阶项对三量子相干的影响不能忽略,它是引起锁定信号快速消失的原因;实验和数字模拟的结果证实了这个理论。

On a long table were small milk cartons from school, and our family's hibachi grill was glowing with red hot coals at maximum heat.

空气中飞扬着的是细细的白色粉末,在一个长桌上是一些从学校拿来的废牛奶纸盒以及家里的烧烤架,烧烤架已经被发红的炭烤到了极热,发着白光。

"There was fine white powder everywhere. On a long table were small milk cartons from school, and our family's hibachi grill was glow ing with red hot coals at maximum heat."

空气中飞扬着的是细细的白色粉末,在一个长桌上是一些从学校拿来的废牛奶纸盒以及家里的烧烤架,烧烤架已经被发红的炭烤到了极热,发着白光。

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Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车,和一双合并为一移交&整个lotta爱&。

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