查询词典 method study

After a series of study of numerical method related to impact dynamics, such as the transient finite element discretization method of conservation equations, numerical quadrature and hourglass control, the identification and redefinition of sliding interface and so on, the dissertation is aimed at to study a high efficient.

在分析八节点六面体单元出现沙漏变形的物理原因的基础上，通过引入抗沙漏节点力消除了因单点积分引起的各种沙漏模态。

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。

Line transect method and individual counting method were used to study the population size and sex ratio of Blood Pheasant in the main study area.

采用线路统计法和绝对数量调查法对研究中心区血雉的种群数量及性比进行了调查。

Just in order to solve thisproblem, this subject further researches the new display solving scheme --WindML based onVxWorks system, demonstrates the enormous advantages of the new scheme in technology,proceeds with the architecture of WindML, based on WindML basic 2D display scheme,throughthe research and study of the systematic principle of WindML system and different service andmanagement,I have put forward the Chinese solving scheme based on VxWorks system, andthrough the study and research of FreeType 2 font engine and vector font, utilized WindMLsystematic mechanism , have finished the implementation of bitmap and vector Chinesecharacter in VxWorks system, and on the basis of which, have designed and optimized theinquiry algorithm of the Chinese input method editor, developed the Chinese input method editorbased on VxWorks system.

本课题正是为了解决这一问题，深入研究了基于VxWorks 系统新的显示解决方案——WindML，论证了新方案在技术上的重大优势，从WindML 的体系结构入手，以WindML 基本2D 显示方案为基础，通过对WindML 系统的系统原理，各种服务和管理的研究和学习，提出了基于VxWorks 系统的汉字解决方案，并通过对FreeType 2 字体引擎、矢量字体的研究，利用WindML 系统机制，完成了位图及矢量汉字在VxWorks 系统中的实现，在此基础上设计并优化了汉字输入法的查询算法，开发出了基于VxWorks 系统的汉字输入法。

Since the physically carrying on the research of thorough study to the topic of this aspect currently quite a little, and this topic concerns to in personal complicated mental state the true feeling and the sharing of difficult expression, the complexity of its grain's not using the quantize research can investigate of applicably the quality method gives the thorough investigation.Hence the research carries on the preliminary study research with the individual cases depth interview method, and leading the research before being used as this research topic, providing the reference direction of the follow-up research and the actual situation operation.

由於目前对此方面的课题实际进行深入探讨的研究相当少，且这个课题牵涉到个人的复杂心理中真实感受及分享时的困难表达，其脉络的复杂性非使用量化研究可探究的，可适用质性方法予以深入探究，因此本研究以个案深度访谈法进行初探性研究，做为此研究主题之前导研究，提供后续研究及实务运作之参考方向。

In order to develop a new method to study the desorption and bioavailability of hydrophobic organic chemicals in soils, a method using semi-permeable membrane device to study desorption of HOCs in soils has been set up, and assisted desorption of polycyclic aromatic hydrocarbons, phenanthrene, pyrene, and benzo［a］pyrenein three different kinds of soils was studied using SPMD.

为了开发一种表征土壤中憎水性有机污染物解吸及生物有效性的新方法，建立了半透膜被动采样装置研究土壤中有机污染物解吸行为的方法，利用SPMD分析了多环芳烃菲、芘和苯并［a］芘在3种不同性质土壤中的辅助解吸行为。

Cantillate to read, not only is peacetime study thou the main method of the poem text, also is a study thou poem text of importance method.

诵读，不仅是平时学习古诗文的主要方法，也是学习古诗文的重要方法。

Through the comprehensive study on the mechanism of the joint application method, the improvement of the material and structure of the probe, the re-designing of the equipment, and the study of gold geochemistry, the foamed plastics absorption and electroextraction are combined into a totally new method with advantages of its originals, and without their disadvantages.

通过综合研究联用法找金机理，改进提取器材料、结构及仪器设备，并结合研究金的地球化学规律，使该联用法成为寻找隐伏型金矿床的新方法。

In the later half of the article, we adopt random analysis method to make preliminary study to the backfilled foundation and then analysis random influence factors that effect the settlement degree of gantry crane foundation. We used JC method to study the reliability of the settlement and Non-Uniform settlement degree of gantry crane foundation based on factors which influence the last settlement degree of railway foundation, and the same time, we utilized backfill construction parameter and the actual statistics data of earth backfilled on site.

本文后半部分，应用随机分析方法对该回填基础进行了初步的研究，分析了影响高架门机基础沉降量的随机影响因素，确定了沉降分析的计算模型，结合影响轨道基础最终沉降量的多种因素，利用施工现场实测回填土土性数值和回填施工参数，对高架门机基础沉降量和不均匀沉降进行了可靠性评价。

As method of inhering knowledge of ancestor and create new element, study has changed from traditional classroom based "teacher teach—student study" method into realize through a variety of ways already. The network teaching is an inevitable development tendency.

学习作为延续人类已有物质文化成果、并在原有知识基础上创造出前所未有的内容的活动，已从传统的基于课堂的&老师教授——学生学习&的模式转变为通过多种途径来实现，网络教学是一个必然的发展趋势。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。