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 CONFLUENCE MODEL OF ISOCHRONIC INSTANTANEOUS UNIT HYDROGRAPH 等流时瞬时单位线汇流模型 短句来源 Determination of the value of 2e/h for the SI Unit and international adjustment 我国SI单位2e/h常数的测定及国际平差值 短句来源 The Study of Piecewise-Linearization Resistive Networks Using Unit Step-Function 用单位阶跃函数研究分段线性电阻网络 短句来源 Study on Unit Power Factor PWM Rectifier with Fast Dynamic Response 具有快速动态响应的单位功率因数 PWM 整流器 短句来源 The effect of residential electricity loads with per unit air temperature changing is nearly 3%～4%. 单位温升效应约为3%-4%. 短句来源 更多
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 New International Electricity Reference Standards and the Adjustment of National Electrical Units in China 新国际电学基准与我国电学单位改值 短句来源 -This paper gives here the background and basis for the new international electrical reference standards of voltage and resistance that have come into effect worldwide from 1st January, 1990. To keep the international consistency, the magnitudes of voltage and resistance units have increased by 8.90×10-6 and 1.53×106 in China, respectively. 本文介绍1990年1月1日起在全世界范围内开始生效的新国际电压和电阻基准的产生背景和基础。 为了与国际上保持一致,我国的电压单位量值增加8.90×10~(-6),电阻单位量值增加1.53×10~(-6)。 短句来源 Sets about System of Electromagnetic Units 电磁学单位制集合 短句来源 The transform between the international and the practical systems of units in electromagnetism 电磁学中国际单位制和实用单位制之间的转换 短句来源 The aim of researching on the ways of grid fault diagnosis is to judge the fault by computer instead of dispatcher and other units, using computer rapid calculation ability, provides the analysis result accurately fast, so that assist dispatcher make rational operation decision after fault occur. 研究电网故障诊断方法,是为了将需要调度员和其它单位协同完成的电网故障判断任务交给计算机来辅助完成,利用计算机的快速计算能力,在设备故障后快速准确地给出分析结果,以便辅助调度员故障后做出合理的运行决策。 短句来源 更多
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 The effect of residential electricity loads with per unit air temperature changing is nearly 3%～4%. 单位温升效应约为3%-4%. 短句来源 Meanwhile, the thermal neutron flux density at certain point is measured and then the thermalneutron flux density per unite power is given. 同时，测量了对应功率下反应堆内辐照座的热中子通量密度，得到单位功率的热中子通量密度，即额定中子通量密度下的运行功率。 短句来源 It shows that the output capacity per unit volume and the systematic efficiency of the Switched Reluctance machine system with the three phase double switch power converter and the three phase 6/4 structure machine are superior to those of the Switched Reluctance machine system with the four phase split supply power converter and the four phase 8/6 structure machine, whether the machines are operated as the motor systems or the generator systems. 结果表明 ,无论是用作电动机系统 ,还是用作发电机系统 ,由三相双开关功率变换器和三相 6/4结构电机组成的开关磁阻电机系统的电机单位体积输出容量和系统效率均比由四相分裂电源式功率变换器和四相 8/6结构电机组成的开关磁阻电机系统高 短句来源 The optimized transverse pitch is found to be 11.97 mm, at which the heat transfer rate per unit pumping power is the maximum. 计算结果表明,当横向管间距为11.97mm时单位泵功换热量最大。 短句来源 When the localization ratio of nuclear power reaches 60%～70%, the project cost can be reduced by 35%～40% with the cost per kilowatt 2～3 times that of coal power. 核电的国产化比例达到60%～70%时,可降低造价35%～40%,单位千瓦建成价约为火电的2～3倍。 短句来源
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 The unit capacity transformation investment expense is 306. 59 Yuan/kW, and the unit electric power investment of saving is 3294. 16 Yuan/kW. 单位容量改造投资费用为306．59元／千瓦,节约单位电力投资费用为3294．16元／千瓦。 The practical technique parameters follow as below: the NaOH solution of 14-16mol/L,the temperature of 303-308K,the surface anodic current density of 300A/m2,the unit electrolyzing speed of efficiency larger than 6.0A/L. ④采用较低的电流密度和较高的电解速度。 具体工艺参数是：14～16mol/LNaOH溶液、温度303～308K、表观阳极电流密度300A／m~2、有效单位电解速度＞6.0A/L。 短句来源 Based on the estimation of the unit solution matrixes of differential equations ,the unique steady state of the dynamic circuits with nonlinear resistors is studied by matrix measure. 本文利用微分方程单位解矩阵估计的相关方法 ,得到了确定含有非线性电阻的动态电路唯一稳态的条件。 短句来源 By the unit root test of inter and outer structure change, the change point of inter and outer structure for power demand is found out. 同时,利用内、外生结构突变的单位根检验,寻找到电力需求的内、外生结构变化点。 短句来源 The experiment in- dicates the rectifier has realized control of the unit' s power factor and has better dynamic and static characters. 实验结果表明:整流器实现了单位功率因数控制,具有优越动态和静态性能。 短句来源

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 Algebraic monoids with affine unit group are affine In this short paper we prove that any irreducible algebraic monoid whose unit group is an affine algebraic group is affine. One outcome is a simple proof that for $g_{m \alpha , n \beta}$ to span $L^2,$ the lattice $(m \alpha , n \beta )$ must have at least unit density. This is done by proving that a well-known method, the construction of a Perron Tree, can be applied to a larger collection of subsets of the unit circle than was earlier known. In the special case of Ω=Id, the d-dimensional unit cube, we prove this conjecture, with Ω'=Id, for d≤3, describing all the tilings by Id, and for all d when Λ is a discrete periodic set. 更多
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 It is assume that trading takes place in the sequence of spot markets and futures markets for securities payable in units of account. It is assumed that the trading takes place in the sequence of spot markets and futures markets for securities payable in units of account. Furthermore, task Ai can be processed on M1 for ai time units, or on M2 for a'i time units, while task Bi can only be processed on M2 for bi time units. The respective functions of the structure units of the main and branched chains were discussed. The proposed planning system is composed of several separate fuzzy units, which control individually each manipulator joint. 更多
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 In previous work, under some assumptions, we specified a replacement rule which minimizes the long-run (expected) average cost per unit time and possesses control limit property. By numerical analysis, the fertility decreases with the per capita capital and per capita consumption increasing and increases with the per capita capital and per capita consumption decreasing on the economic growth path are obtained. The static maximum adsorption capacity of naringin is 32.6 mg/g with naringin concentration at 2.7 g/L, while the dynamic adsorption capacity of naringin is 23.8 mg/g with naringin extract flow rate at two times that of resin volume per hour. The desorption ratio will rise to more than 85% when the flow rate of this optimal eluant is one to two times that of resin volume per hour. Detectability of 0.7 mg/l for pseudoephedrine hydrochloride was achieved at a sample throughput rate of 24 times per hour, which is 30% lower than that obtained by HDI-based conventional CE. 更多
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 This is done by proving that a well-known method, the construction of a Perron Tree, can be applied to a larger collection of subsets of the unit circle than was earlier known. For p∈(-∞, ∞) letQp(?Δ) be the space of all complex-valued functions f on the unit circle ?Δ satisfying, where the supremum is taken over all subarcs I ? ?Δ with the arclength |I|. In this article we consider a simple method of radial quasi-interpolation by polynomials on the unit sphere in ?3, and present rates of covergence for this method in Sobolev spaces of square integrable functions. Toeplitz operators on the Bergman space of the unit disc can be written as integrals of the symbol against an invariant operator field of rank-one projections. We present a method for constructing wavelet bases on the unit sphere S2 of R3, using the radial projection and an inner product associated to a convex polyhedron having the origin inside. 更多
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