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 dc
 Study of Fast DC Circuit Breaker Based on Electronic-Driven 基于电子操动的快速直流断路器的研究 短句来源 Inspection, Analysis and Restraining of DC Transmission on Power Grid Equipment 电网设备直流偏磁影响检测分析与抑制 短句来源 Research on the Analysis and Control Strategy of Ultracapacitor DC Storage Energy System Application 超级电容器直流储能系统分析与控制技术的研究 短句来源 Research on the DC Bias Phenomena of Large Power Transformers 大型电力变压器直流偏磁现象的研究 短句来源 Experimental and Theoretical Study on Flue Gas Denitrification by DC Corona Oxidation Integrating with Chemical Scrubber 直流电晕氧化结合化学吸收烟气脱硝实验及机理研究 短句来源 更多
 direct current
 Distillation of Rare-Earth Elements in Argon-Oxygen Direct Current Arc 稀土元素在氩-氧直流电弧中的分馏 短句来源 THE DIFFERENTIAL-INTEGRAL EQUATION METHOD OF DIRECT CURRENT FIELD 直流电场的微分—积分方程法 短句来源 THE FOURIER TRANSFORM SOLUTION FOR DIFFERENTIAL- INTEGRAL EQUATION OF DIRECT CURRENT FIELD 直流电场微分-积分方程的Fourier变换解法 短句来源 ZnS:Mn,Cu POWDER DIRECT CURRENT ELECTROLUMINESCENCE (DCEL) ZnS:Mn,Cu粉末的直流电致发光(DCEL) 短句来源 Development of The Transistor Arc Welding Inverter with Pulse and Direct Current 脉冲—直流两用晶体管弧焊逆变器的研制 短句来源 更多
 hvdc
 The Development and Application of HVDC Light Technology 轻型直流输电(HVDC Light)技术的发展与应用 短句来源 Application of NETOMAC on HVDC System Simulation NETOMAC在直流输电系统仿真研究中的应用 短句来源 Study on Overvoltage Protection and Insulation Coordination for ±800kV HVDC Transmission System ±800kV直流系统过电压保护和绝缘配合研究 短句来源 Fauft Analysis for ±500 kV GE-NAN HVDC Link in 1991 1991年±500kV葛南直流输电线故障统计分析 短句来源 R&D of Converter Transformer for ±800 kV HVDC Power Transmission Project ±800 kV直流输电工程用换流变压器的研发 短句来源 更多
 direct
 Distillation of Rare-Earth Elements in Argon-Oxygen Direct Current Arc 稀土元素在氩-氧直流电弧中的分馏 短句来源 THE DIFFERENTIAL-INTEGRAL EQUATION METHOD OF DIRECT CURRENT FIELD 直流电场的微分—积分方程法 短句来源 THE FOURIER TRANSFORM SOLUTION FOR DIFFERENTIAL- INTEGRAL EQUATION OF DIRECT CURRENT FIELD 直流电场微分-积分方程的Fourier变换解法 短句来源 ZnS:Mn,Cu POWDER DIRECT CURRENT ELECTROLUMINESCENCE (DCEL) ZnS:Mn,Cu粉末的直流电致发光(DCEL) 短句来源 Discussion Consummation of Direct Ammonia Supply and Improvement of Refrigeration Efficiency 完善氨直流供液方式提高制冷效率的探讨 短句来源 更多

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 dc
 The structure and properties of the samples were investigated by XRD, Raman spectral techniques, and DC measurements and so on. Results of the analysis reveal that crystals of the complex 1 are orthorhombic, space group Pbcn, a = 4.6370(2) nm, b = 0.7549(2) nm, c = 1.3888(4) nm, V = 4.861(2) nm3, Z = 8, M = 945.49, Dc = 2.58 g/cm3, μ = 2.625 cm-1, R = 0.063, and wR = 0.075. Furthermore, it is clear that when carrier signal h(t)=0, closed-loop pulse-width modulation (PWM) DC-DC converters are not well posed, and when some condition is satisfied, the closed-loop PWM DC-DC converters with a P controller are well posed. The brushless DC motor (BLDCM) with trapezoidal electromotive force (back-EMF) waveform is used widely. Bifurcation and chaos in multi-parallel-connected current-mode controlled boost DC-DC converters 更多
 direct current
 Direct current magnetic susceptibility measurement in the 2-300 K temperature range supports a high-spin ground state. This paper analyzed the operating principles and power and torque characteristics of the wind turbine and the direct current motor (DC motor), and investigated the operating characteristics of the wind turbine compared to that of the DC motor. Surfacing beads are prepared by a direct current tungsten inert gas arc nickel-aluminum (Ni-Al) powder surfacing process. Using A-TIG welding with the modes of alternating current (AC), direct current electrode negative (DCEN) and direct current electrode positive (DCEP), respectively, the flux differently affects weld penetration when the polarity is different. The structure, phase transition, oxygen ion diffusion and electrical conductivity were studied with X-ray diffraction (XRD), differential scanning calorimeter (DSC), direct current (dc) resistivity, and dielectric relaxation (DR) measurements. 更多
 hvdc
 Digital controller for hybrid filter in HVDC based on approximate inverse system The results of both simulations based on PSCAD and experiments on a 30 kVA HVDC system prove that the proposed digital control system is stable and efficient for eliminating the harmonics. A robust adaptive control with unmodeled dynamic for HVDC transmission systems Utilizing the feature of quick response of HVDC to improve the performance of AC/DC system has become the emphasis to be researched. The additional control of HVDC with unmodeled dynamics only uses the local signals and its design is simple, furthermore it can obviously improve the stability of power system in different operational conditions. 更多
 direct
 We express them in terms of generatorsEij ofU(gl(n)) and as differential operators on the space of matrices These expressions are a direct generalization of the classical Capelli identities. For a cellA?Wf we consider a full subcategory formed by direct sums of tilting modulesQ(λ) with highest weights. The Direct Summand Property in Modular Invariant Theory The group of direct isometries of the hyperbolic space ${\Bbb H}^n \mbox{is} G=\mbox{SO}_0(n,1).$ This isometric action admits many differentiable compactifications into an action on the closed n-dimensional ball. We show that ${\mathcal M}(G,R)$ is a symmetric tensor category, i.e., the motive of the product of two projective homogeneous G-varieties is a direct sum of twisted motives of projective homogeneous G-varieties. 更多
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