相量
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Using the information from exploratory adit can class rock mass structure, drawing lessons from internal successful experiences in rock mass quality and weathering zone classification, dam abutment rock mass is classed by choosing quantization indices of rock mass structure, the outcome same as investigation, accord with commonly geoloical rule. Using the information from slope image can finish stability analysis of lithologic slope, get 3-D cutaway view and date, it is important datum for research engineering geoloical condition of dam abutment rock mass.
利用勘探平洞洞壁图片采集的结构面信息处理成坝肩岩体结构研究的基本量化指标及实体模型,进行拉西瓦水电站坝肩岩体结构类型划分,并借鉴国内岩体风化分带、岩体质量分级规范,以岩体结构量化指标作为风化分带和质量分级的主要指标,划分两岸坝肩岩体风化分带、岩体质量分级,划分结果与野外现场判定及地质师室内划分结果相符合;利用边坡图片解译结果完成了坝肩岩体抗滑稳定边界条件分析,及不稳定块体的量化值和三维展示图,为坝肩工程地质条件评价提供重要资料。
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a kind of design project of multifunction electric power quality gauged instrument based on virtual instrument is put forward in this article.this system integrates virtual instrument programming and power electronics together,to realize diverse signals of current electric power quality field allin one.the integrated signal generator unit which carries out the collection of high speed digital data,d/ a conversion and analog output in four channels,unsymmetrical synchro control fifo etc.by fpga are introduced,the flow of electric power system various signal which generates by vc programming is elaborated,and the structural design of signal amplification unit is analysed.the experiment text result shows that this gauged instrument has attained current advanced high grade of accuracy and it will accelerate the steps of electric power quality calibration because of its accuracy and versatility.
摘 要:提出一种基于虚拟仪器技术的多功能电能质量标定仪的设计方案,采用虚拟仪器编程技术和电力电子技术相结合实现集目前电能质量领域的多样信号于一体。介绍采用fpga实现高速数字量采集、d/a转换及4通道模拟量输出、非对称同步控制fifo等的集成信号发生单元,阐述利用vc编程实现的电力系统多样信号的产生流程,分析信号放大单元的结构设计。实验测试结果表明该标定仪达到目前先进的高精度等级,由于其准确性和多功能性将加快电能质量标定的步伐。
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METHODS: In combination with the clinical manifestations, the followings were performed:① quantitative detection with APS-5000 automatic sight apparatus in the Department of Neurological Ophthalmology;② achromatic color clear liquid glucose quantitation in nasal cavity;③ tetrofosmin 99Tcm labeled pentetate acid and stannous chloride ECT leakage imaging;④ cranial CT;⑤ electroencepalogram and brain topographic mapping;⑥ Eysenck personality questionnaire;⑦ Minnseota multiphasic personality inventory;⑧ Symptom checklist;⑨ Wechsler adult intelligence scale-Chinese revised;⑩ clinical memory scale.
结合临床表现进行了①神经眼科APS-5000自动视野仪定量检测;②鼻腔无色透明液体糖定量;③99Tcm标记的亚锡喷替酸ECT漏口显像;④头颅CT;⑤脑电图和脑电地形图;⑥艾森克人格问卷;⑦明尼苏达多相人格调查表;⑧症状自评量表;⑨中国修订韦氏成人智力量表;⑩临床记忆量表的检查。
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Then, the sequence voltages of the slack bus is replaced, and finding the positive sequence power flow several times until convergence comes off. Compared with the three-phase Newton-Raphson method, the Jacobian matrix with the proposed algorithm is of much lower order. The computation of finding the negative sequence component from the coupling power is only division arithmetic.
本文算法中修正方程式的雅可比矩阵阶数同单相潮流算法相同,是传统三相潮流算法的1/3,而通过耦合功率求解负序分量的计算,仅仅是简单的除法运算,计算量远远小于高阶矩阵的处理,因而总体上,与传统方法相比,大大降低了计算量。
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In the CVB-PIV system,the image of astatic particle reflection is a circle,whose center represents the in-plane position of the particle andradius is equal to the displacement of bias related to the out-plane position of the particle.
同时,通过CVB-PIV对单个或多个粒子的静止、直线运动、摆动和圆周运动的研究,以及对平面镜角速度等参数对于粒子影像的影响和粒子面外位置与粒子影像偏移量对应关系的探讨表明,静止粒子的影像是一个圆,圆心坐标与粒子的面内位置相对应,圆的半径就是粒子影像的偏移量,与粒子的面外位置一一对应。
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Considering complicated conditions of the coastal dynamic environment, sediment dynamics, and together with the immature sediment itself, the predicted results will be somewhat limited if only with numerical model. So, in order to obtain microcosmic quantitative assessment and macroscopically understanding, numerical model is combined with field observations in the thesis. Firstly, the tidal current, SSC distribution, benthal deposited materials were basically analyzed by field observations. Then, the tidal current, SSC distribution, and the erosion and accumulation of the seabed were simulated with the numerical model of ECOMSED.
但由于海岸动力环境多变,泥沙运动复杂,加之泥沙问题本身的复杂性,如仅用数学模型,其预测结果将受到一定的限制,故本文采用实测调查与数学模型计算相结合的方法,宏观把握,微观量化,在掌握岚山港西突堤工程所在海域潮流、悬沙量分布、表层底质沉积物类型及特点基本态势的基础上,紧扣开发工程可能引起潮流场变化,分析工程后悬沙量、海底冲淤变化及其空间分布,进而建立潮流作用下的泥沙输运数学模型,首先比较好地模拟目前岚山港西突堤工程附近海域的潮流场和悬沙场,然后预测海湾沿岸可能引起的冲淤强度变化和冲淤区域的空间分布。
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The content of biuret by colorimetry and the total content of nitrogen in urea and biuret were mensurated.
摘 要:对固相法和液相法合成氰尿酸的方法进行比较,采用比色法测定缩二脲含量,用甲醛测定尿素、缩二脲的总氮量,由缩二脲的含量、总氮量推算出尿素的含量及产品的纯度,从而说明液相法的优势。
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The valence electron structure of medium chrome cast iron matrix is set up and the effect of Si on medium-temperature phase transformation is analyzed by using empirical electron theory of solids and molecules.
此文建立了290Cr8Si2中铬铸铁基体的价电子结构,运用固体与分子经验电子理论分析了中铬铸铁中Si对铸铁中温相变的影响,分析和实验结果表明,290Cr8Si2中铬铸铁基体含C、Cr、Si的-γFe晶胞中,C原子与Si原子的结合力强于C原子与Cr原子的结合力,中铬铸铁中较高的含Si量降低了铸铁基体的含Cr量,进而降低了中铬铸铁的淬透性。
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Have a capacity of hatching-year 28 million kinds of hatching young plants, filling in feed amounted to one million feed plant to fill the annual slaughtering capacity of 20 million processing plant and its matching refrigerator, an annual output of 200,000 tons of feed mill has an annual output of 5000 tons of eider down factory.
拥有年孵化能力达2800万只种雏的孵化厂,年填饲量达100万只的填饲厂,年屠宰量达2000万只的加工厂及与其相配套的冷库,年产20万吨的饲料厂、年产5000吨的羽绒厂。
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Based on the relationship between the material elastic constants and the strain energy, the three-dimension SOEC and TOEC tensor expressions are obtained by using tensors derivation principle.
因为材料的弹性常数同其应变能相联系,所以利用张量的求导法则,给出了三维情况下SOEC和TOEC的张量表达式。
- 推荐网络例句
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For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether
年美国个人破产法的一个改动使得破产登记急速下降,而后引起了信用卡大规模的亏损。
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Eph. 4:23 And that you be renewed in the spirit of your mind
弗四23 而在你们心思的灵里得以更新
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Lao Qiu is the Chairman of China Qiuyang Translation Group and the head master of the Confucius School. He has committed himself to the research and promotion of the classics of China.
老秋先生为中国秋阳翻译集团的董事长和孔子商学院的院长,致力于国学的研究和推广。