- 更多网络例句与漂移相关的网络例句 [注:此内容来源于网络,仅供参考]
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In the modified drift flux model both the acceleration by gravity and the acceleration of the average volumetric flow were taken into account for the calculation of the drift velocities.
为计算漂移数学模型中的汽相速度,综合考虑了重力和流体本身的加速作用对汽相漂移速度的影响,故该漂移数学模型可用于分析多维汽液两相流。
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Drift Angle, Speed, Peak Drift Angle, Speed at Peak Drift, Current Sector, Sector Score, Total Score, Peak Longitudinal Acceleration, Average Speed
漂移角,速度,最大漂移角,最大漂移角时的速度,当前路段,路段分数,总分,最大纵向加速度,平均速度。
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It is confirmed from both the experimental investigation and numerical analysis that the constitutive correlation of the drift velocity in which the effect of the gravitational force and the acceleration of fluid flow on the drift velocity of the vapor phase is taken into account has reasonable accuracy and it can be used to determine the drift velocity of the vapor phase of two-dimensional and three-dimensional two-phase flow.
本文结合实验测量和数值计算两方面,验证了同时考虑重力和流体本身加速作用对汽相漂移速度的影响是合理的,这种漂移速度结构关系式可以用来计算二维和三维汽相漂移速度。
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The experiment shows that,there is phase drift of low frequency in the digital image seriel acquired by CCD camera and frame grabber,different CCD has different drift characteristic and level;the phase drifts are not identical even in the same image line,the phase drift of neighboring locations in an image line has distinct correlation;the drift levels ...
实验表明:经 CCD Camera和图像卡采集的数字图像序列中存在着低频的图像抖动,即位相漂移。而且不同的 CCD Camera具有不同的漂移特点和程度,甚至在同一个图像行内的漂移也不完全一致。一般在图像行内相近的位置之间,位相漂移有明显的相关性,不同的图像行之间的漂移的程度相同,但没有相关性。最后本文还给出了一种位相漂移的修正方法
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It is pointed out that the adaptive controller based on Lyapunov stability theory completes the integration of the square term caused by the integration of the multiplication term, and the integration of the square term is exactly the source of the slow-drift and its instability.
本文用均值平衡位置内摄动分析法,分析了有正态零均值噪音及有未建模动态时MRAC 的慢漂移。指出用Ляцунов稳定性理论或超稳定性理论设计的自适应控制器中,完成相乘项和平方项的积分,是MRAC慢漂移及慢漂移不稳定的根源。
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At first, exposure dose distribution model of polar laser direct writing was established , and the cause of radial shift was analyzed. And then, the linewidth broadening model and radial shift model were established corresponding to object lens with numerical aperture 0.5, and the coupling relationship between linewidth broadening and radial shift was analyzed.
首先推导了极坐标激光直写的曝光量分布模型,分析了径向漂移产生的原因,然后针对数值孔径为0.5的光刻物镜建立了线条展宽模型和径向漂移模型,并分析了线条展宽和径向漂移的耦合关系,在此基础上分别建立了线条展宽补偿模型和径向漂移补偿模型。
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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。
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The main work and achievements are as following:An overview of gyros drift is presented. Its cause is analyzed and it is categorized into three types: constant drift, slope drift and random drift.
主要的工作及完成的任务如下:首先对陀螺仪的漂移进行了概述,分析了其产生的原因,并把它分为三种:常值漂移,斜坡漂移及随机漂移。
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In a database the concept of an example might change along with time which is known as concept drift When the concept drift the classification model built by use of old data is unsuitable for classify new data Therefore concept drift has become a hot issue in data mining in recent years Although many algorithms had been proposed to resolve this problem they can not provide users with the reason of concept drift However a user might be very interested in such rules For example doctors want to find what makes disease change; researchers want to know the reason of the variety of the weather; and decision makers would like to understand why a customer's shopping habit change In this thesis we propose a Concept Drift Rule mining Tree called CDR-Tree to solve this problem CDR-Tree can not only find the rule of concept drift also build the prediction model for both old and new data at the same time
无论在大型资料库或现实生活中,同一资料样本的概念有可能会随著时间的递移而改变,也就是产生所谓的概念漂移。当样本发生概念漂移时,由旧有资料所建构的分类模组将不再适用於预测新获得的资料,因此,近年来概念漂移已成为资料探勘中一项热门的研究议题。虽然已有?多学者提出不同的技术来解决概念漂移的问题,但是这些方法都是利用修正或重建的方式来产生适合新资料的预测模组,并无法提供造成概念漂移的原因。然而对使用者而言,其感兴趣的可能正是这些引起概念漂移的规则,如医生可能想了解引起疾病变化的主因、学者会想要知道气候转变的规则、或是决策者想找出顾客购物习惯改变的因素等。因此,本论文提出概念漂移规则探勘树( Concept Drift Rule mining Tree ),简称CDR-Tree,来解决这个问题。CDR-Tree不但能探测出造成概念漂移的主要原因,亦能同时建立新旧资料的预测模组以供决策者运用使用。
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Based on analyses of observations from the short-spaced GPS receiver array at Wuhan, the storm-time ionospheric irregularities which resulted in scintillations and rapid TEC fluctuations showed westward drifts between 21∶30 and 03∶00 LT with drift velocities changing from ~40 to ~130 m/s. And based on analyses of observations from the ultra-short spaced GPS receiver chain at Guilin, ionospheric irregularities which resulted in the L-band radio wave scintillations, showed eastward drifts around local midnight ranging from ~70 to ~55 m/s on the quiet-day and westward drifts ranging from ~150 to ~50 m/s before the midnight and eastward drifts after the midnight ranging from ~25 to ~65 m/s on the disturbed day.
短间距台网和超短间距台链观测实例的计算结果表明,暴时武汉地区引起TEC快速起伏的电离层不规则结构沿纬圈向西漂移,21∶30至03∶00 LT,西向漂移速度在约40 m/s至130 m/s的范围内变化;在桂林地区,磁静日午夜前后引起L波段电波闪烁的电离层不规则结构沿纬圈向东漂移,漂移速度从约70 m/s下降到约55 m/s,磁扰日午夜前不规则结构向西漂移,速度从约150 m/s下降到约50 m/s,午夜后转为向东漂移,速度从约25 m/s上升到约65 m/s。
- 更多网络解释与漂移相关的网络解释 [注:此内容来源于网络,仅供参考]
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continental drift theory:大陆漂移说
大陆漂移|continental drift | 大陆漂移说|continental drift theory | 大气圈|atmosphere
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drift velocity:漂移速度;偏移速度
漂移时间 drift time | 漂移速度;偏移速度 drift velocity | 钻径规 drill gauge
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Deposition drift velocity:漂移速度
大陆漂移:continental drift | 漂移速度:Deposition drift velocity | 漂移补偿:drift compensation
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drift:漂移
20世纪的地球科学革命是很有特征性的:这场革命推翻了经典地学的核心理论--洋陆固定论,树立了大陆(连同海底部分)之间可以相互"漂移"(drift)的激进概念.这场革命历经了大陆漂移、海底扩张、板块构造三部曲,与哥白尼革命十分相似,
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drifts in intensity:强度漂移
漂移棒 drifting rod | 强度漂移 drifts in intensity | 漂移管式加速器 drift-tube accelerator
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electron drift detector:电子漂移检测器,电子漂移检测仪
electron drift 电子漂移 | electron drift detector 电子漂移检测器,电子漂移检测仪 | electron drift velocity detector 电子漂移速度检测器
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electron drift velocity detector:电子漂移速度检测器
electron drift detector 电子漂移检测器,电子漂移检测仪 | electron drift velocity detector 电子漂移速度检测器 | electron emission 电子发射=>電子放出
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drift, input offset current:输入偏移电流漂移
drift rate 漂移速率 | drift, input offset current 输入偏移电流漂移 | drift, input offset voltage 输入偏移电压漂移
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consecutive drift tube:连串漂移管,相接漂移管
consecutive days ==> 连续作业日,(装卸期条件)连续日 | consecutive drift tube ==> 连串漂移管,相接漂移管 | consecutive electrochemical reaction ==> 连串电化学反应
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Brno excursion:布尔诺漂移
布莱克漂移 Blake excursion | 布尔诺漂移 Brno excursion | 莫诺湖漂移 Mono Lake excursion