查询词典 threshold exposure

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。

Part 2. Measurement of macular light sensitivity and FM 100-hue test in normal prese- nium and geratic people. The macular light sensitivity 、macular foveal light sensitivi- ty in 64 (82 eyes) and hue discrimination in 75 (100 eyes) normal presenium and geratic people were examined with macular threshold (white、red、blue and green color light) program of the Humphreh Field Analyzer and FM 100-hue test respectivity. The re- sults showed that the light sensitivity in four color light threshold was all declined with age. The mean error score square of each spectral region and whole spectral was increased with age, the loss of light sensitivity and hue discrmination was a linear correlated with age. The light sensitivity of the different field was compared, except blue color light threshold, the light sensitivity was decreased with the increasing of the eccentricity, white and red color light threshold in the inferior field showed lower sensitivity than that in the superior field.

二、老年前期及老年期正常人的黄斑阈值及FM100-色调试验检测采用Humphrey视野分析仪黄斑阈值程序和FM100-色调试验仪分别对82例（82眼）和75例（100眼）老年前期及老年期正常人进行了黄斑光敏度、黄斑中心凹光敏度及色调分辨力的测定，结果显示四种色光阈值的光敏度均随年龄增加而降低，FM100-色调试验各个色区及全色区错误记分方根随年龄增加而增高，光敏度及色调分辨力的降低与年龄呈线性相关；不同视野的光敏度比较，除蓝色光阈值外，光敏度均随视野偏心度的增加而减少，视野的上半部光敏度较下半部低；视野的鼻侧与颞侧及各象限的光敏度无显著差异。

If the Exposure fluctuates above the threshold, Collateral will be moved to reflect the Exposure less the threshold.

如果风险敞口扩大到起点金额之上的数额，担保金额将变动至风险敞口减去起点金额后的程度。

What about stacked exposure? If we want to talk about origins, it began as a mistake in photographic exposure that eventually became a widely used technique. It is just like today's topic and exhibition; every time I have a discussion with an artist it is an exposure, and when there are more discussions, it becomes a double or multiple exposure, talking, chatting, laughing, moving on.

叠影？如果真的说清楚来源，是影像中一次失误的曝光形式，刚开始是错误，后来却成为精巧的技术被摄影界广泛使用，就像我们今天谈的话题和这个展览，每一次和艺术家的讨论就象曝光，都有几次以上的叠影，谈。

In this way, it seems a bit out of date, the trend by the mainstream, but non-mainstream layout its greatest advantage is the negative of exposure, and proto-photoptic part of the form a natural way, so there is still used in the long version of the business and lithographic printer rotary machine, it can only do Ministry of exposure and proto-formation, and the version and edition of the exposure draft is not necessary and thus smaller, faster, and the other, negative version of the UPS can borrow bakeout and re-exposure produces and proto-hardening, seyuan plates, long after their transformation to card printing 200,000 points, such as bakeout multiplicable plates after four hundred thousand copies of the publication and the newspaper industry has a positive effect.

这栽方法看来有点过期，是由干不源走向否干不源版式，但它最不小劣势是晴片型曝平，有感平部不合才酿成印纹的板滞方法，所以目后仍用在不幼版的商用及印报轮转平印机，它可以只怠工印纹酿成部曝平，而版口及版尾不离是必定曝平地域，因此背积较小、速率较迟，另边，晴片型冷感版可以不还烘烤及再曝平爆发印纹强硬，啬耐印度，在不幼转制卡二十万不合印版，如烘烤后可补充耐印四十万份，差不小度出书及报业有正背功用。

Materials and methods:Male Sprague—Dawley rats were randomly divided into four groups as follow:Normoxia sedentary group,Hypoxic exposure group,Normoxia exercise group,living high training low group.the normoxia sedentary group lived in normoxic environment,hypoxic exposure group made hypoxic exposure for 12h in normobaric hypoxic tent(oxygen concentration 13.6%),Normoxia exercise group took 1h endurance exercise in normoxic environment at daytime,Hiho group was exposured in hypoxia at night after trained at daytime,the mode and duration of the both load were identical to hypoxic exposure group and normoxia exercise group.

研究方法：以雄性SD大鼠为研究对象，分成4组：常氧安静组、低氧暴露组、常氧运动组、高住低训组。常氧安静组在常氧环境下安静生活，低氧暴露组每晚在常压低氧(氧浓度13.6%)帐篷中低氧暴露12h，常氧运动组白天在常氧环境中进行耐力运动1h，高住低训组运动和低氧暴露的方式和时间分别同常氧运动组和低氧暴露组。

Therefore, a experimentent with three exposure types (early cleavage exposure, 0hpf; gastrula exposure, 8hpf and 0hpf exposure but stop after 8 hours, 8h stop) were designed to investigate the toxicity and bioaccumulation of bisphenol A in zebrafish embryo in different stages.

为研究胚胎在不同发育阶段对外源化合物的毒性敏感差异，以0hpf、8hpf和8h终止3种暴露方式进行染毒，探讨斑马鱼胚胎在不同暴露时段对双酚A毒性和生物蓄积特征。

Therefore, a experimentent with three exposure types (early cleavage exposure, 0hpf; gastrula exposure, 8hpf and 0hpf exposure but stop after 8 hours, 8h stop) were designed to investigate the toxicity and bioaccumulation of bisphenol A in zebrafish embryo in different stages.

为研究胚胎在不同发育阶段对外源化合物的毒性敏感差异，以0hpf、8hpf和8h终止3种暴露方式进行染毒，探讨斑马鱼胚胎在不同暴露时段对双酚A。

The isotopic abundances of rare gases and cosmic-ray exposure ages of asteroid meteorites, planetary meteorites and the Apollo lunar samples applied to clue up and understanding cosmic-ray exposure history of parent bodies of different meteorite types, collision events, the relationship between cosmic-ray exposure ages and heliocentric distance of the parent bodies, irradiation history of precompaction exposure of chondrules, pairing meteorites for the Antarctic meteorites and desert meteorites, the ejection history of planetary meteorites, and relative ages of lunar craters and so on.

小行星陨石、行星陨石及阿波罗月球样品的稀有气体同位素丰度和宇宙射线暴露年龄，已广泛应用于探索和了解不同类型陨石母体的宇宙射线暴露历史、冲击碰撞事件、暴露年龄与日心距离的关系、吸积形成母体前硅酸盐球粒的辐照历史、南极和沙漠陨石中成对陨石的判别、行星陨石的溅射历史及月坑的相对年龄等关键词：宇宙射线暴露年龄；陨石；球粒陨石；无球粒陨石；火星陨石；中铁陨石

A soon-to-exposure, exposure toppedwith photoptic layer of PS plate is placed on a printer over a film, the main light, exposure to an extreme and two film on designs in the PS version shows basic "" image (Note: all model PS version of exposure conditions is recommended to use cyclophos phamide light source of iodine to 3KW lamp light version of gallium with a distance of 1 m).

一、曝平曝平即不兵涂有感平层的PS版置于晒版机工息台下，放好底片，堵住宾平、输平两不宾曝平使底片上图案在PS版上表现不入根基&影像&（注：各型号PS版的曝平后提保举搁置①平源为3KW的碘镓灯②灯版距1m）。

I'm not an actor. I'm a professor of paleontology.

我不是演员，我是古生物学教授

Spider Network Web site that is a very image of the name.

网络蜘蛛即Web Spider，是一个非常形象的名字。