查询词典 radiation-therapy

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。

Structure ; sound radiation ; boundary element ; singular integral ; multi-frequency calculation ; sound radiation mode ; sound radiation sensitivity

国家自然科学基金；攀登计划结构；声辐射；边界元；奇异积分；多频计算；声辐射模态；声辐射灵敏度

Structure; sound radiation ; boundary element; singular integral ; multi-frequency calculation; sound radiation mode ; sound radiation sensitivity

工程科技II，工业通用技术及设备，声学工程结构；声辐射；边界元；奇异积分；多频计算；声辐射模态；声辐射灵敏度

Main section of this paper as follows: First,Comparison of ET0 which were calculated by different net solar radiation,such as they are estimated from solar constant,solar radiation measured and the measuring net radiation data.

用由太阳常数、太阳短波辐射计算出的浑善达克沙地气象站所在地的净辐射值及实测的净辐射值计算了参考作物蒸散速率(ET0)，分析比较了计算的结果。

Discussing the effect of brines radiation transmission on the thermal performance of the solar pond. Comparisons were made among three typical models for radiation transmission, and a numerical simulation was performed to study the effect of the radiation transmission on the temperature profile.

讨论了盐水的辐射透射率对太阳池性能的影响，比较了三种典型的太阳池辐射透射模型，并且分析辐射透射率对温度场分布的影响。

The first part is a summary of the late thirty years′observational materials, it divides the Active Galatic Nucleis into ordinary AGNs and Blazer, according to the radiation origin of thermal radiation or non-thermal radiation, and the view is strongly supported here.

论文的第一部分综述了活动星系核近三十年来的观测资料，充分地肯定了根据活动星系核的辐射起源而把它们划分为以热辐射为主的普通活动星系核和以非热力学辐射为主的布莱扎天体这一观点。

The methods of theory analyses and digital simulation have been used in this thesis and several schemes of strapdown guidance law based on analyzing the performance of several classical guidance laws have also been present according to the characteristics of strapdown Anti-Radiation homing seeker. The stapdown guidance systems were built for a certain Anti-Radiation missile, adopting acceleration autopilot and the attitude autopilot, and the paper has focus on analyzing the performance of low frequency strapdown Anti-Radiation homing seeker. The Approaches of lead correction and dead-zone relay control were given to improve the guidance precision, and also the increasable observability law was attempt and validate.

本文采用理论分析和仿真实验相结合的方法，在对经典制导律进行理论分析和验证的基础上，针对捷联反辐射导引头的特点，提出了捷联制导律多种设计方案，并以某型反辐射导弹为应用背景，分别采用姿态角反馈自动驾驶仪和过载反馈自动驾驶仪构造了捷联制导系统，重点基于反辐射导引头的低频端特性，开展了捷联制导律的导引性能对比分析工作，提出了应用超前校正和带死区继电控制提高制导精度的方法，并对提高可观测性的捷联制导算法的实现思路进行了尝试和验证。

A temperature sensor in front of the electromagnetic field, the said without interference from the methods include: the temperature sensor is made on the characteristics of semiconductor material pre-selected wavelengths of light transmission function as the temperature sensor, west DingZheng prismatically configuration sensor, in order to provide a direct path through the reflective temperature sensor said, Another kiss for primary sources said wavelength, Choose 12.449 coupled with optical fiber sensor, the radiating waveguide song, Another kiss can detect radiation intensity detector change along, through direct transmission path as temperature sensor reflective function, Optical fiber sensor probe second waveguide coupling, And the radiation temperature sensing along the road, directly from the first glance through optical waveguide fiber-optic sensors represent temperature, pulsing said waveguide detection radiation intensity of optical fiber sensor, forwarding through said waveguide as the second pen function temperature.

一种温度传感当着电磁场无干扰电磁场说，该方法包括：从编造温度传感器具有半导体材料的特点进行预选波长的光传输功能作为温度传感器、西丁正prismatically配置传感器，以提供一个直接透过反光路说温度传感器；亲另方面说预选波长为辐射源；选择 12.449偶合传感器的辐射源，以光纤波导首；亲另方面探测器能够探测辐射强度的变化直接传送沿说，通过传感器作为道路反光函数温度；光学传感器耦合的光纤探测器第二波导；与由导演辐射温度传感沿线道路反光直接从第一说，通过光纤波导表示温度光纤传感器脉动说波导二、检测辐射强度转发的光纤传感器，通过说波导作为第二笔功能温度。

The company's products used by the fabric, is the company's own design and production of worsted fabrics radiation, soft texture, permeability, and washable, radiation effects through国家技术监督局Identification Test Center in Shanghai (Shanghai, China, the United States of using the Test Center Test Association of ASTM D4935-99 standard test results show that on Sonneratia weft fabric used by the radiation, electromagnetic shielding efficiency up to 99.99 percent).

公司产品所采用的面料，是公司自行设计生产的精纺防辐射面料，质地柔软、透气性好，耐水洗，防辐射效果通过国家技术监督局上海测试中心鉴定（中国上海测试中心采用美国材料试验协会ASTM D4935-99标准的检测，结果表明上海桑纬所采用防辐射面料，电磁屏蔽效率可达99.99%）。

The results show that 60Co-γ ray radiation has the most remarkable effect on the degradation of organophosphorus pesticides such as fenitrothion, parathion, methyl-parathion, phorate and chlorpyrifos and the maximum degradation rates are over 85%. The degradation rates of methamidophos, acephate, malathion ,dimethoate are slightly inferior to them and the optimum degradation rates is just only 34.70%. At the same time, the contents of soluble total sugars, glucose, fructose, sucrose and total sugars in apple juice decrease unconspicuously, but the total acid content in apple juice and its color value and clarity increase. Based on a comprehensive consideration of the 60Co-γ radiation effect on the actual degradation of organophosphorus pesticides in apple juice and its main chemical and physical indexes, organophosphorous pesticides residue will be decreased to a lower level with radiation dose of about 5 kGy but the main chemical and physical indexes of export apple juice can not be affected.

结果表明： 60Co-γ射线辐照处理对苹果汁中杀螟硫磷、对硫磷、甲基对硫磷、甲拌磷、毒死蜱降解效果最为显著，最高降解率均在85%以上；对苹果汁中甲胺磷、乙酰甲胺磷、马拉硫磷和乐果的降解效果不显著，最高降解率仅为35%；在0～9 kGy辐照剂量范围内降解苹果汁中有机磷农药的同时，会使苹果汁中的可溶性固形物、葡萄糖、果糖、蔗糖及总糖含量轻微降低，苹果汁的总酸度有所增加，苹果汁的色值及透光率提高；综合分析60Co-γ射线辐照对苹果汁中有机磷农药的实际降解效果及对苹果汁主要理化指标的影响，选用5 kGy的辐照剂量已完全使苹果汁中的有机磷农药残留降低到一个很低的水平，又不会对苹果汁出口主要理化指标造成影响。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。