Based on the cable-stayed bridge using method of cantilever, the paper establishes the optimization model of construction phase with multi-objective and multi-constraint and gives the example.
采用多目标、多约束的优化方法,以悬臂施工主梁的斜拉桥为例,建立了施工阶段的优化模型,并给出算例。
This paper describes briefly the principle of the phase stability of temperature in coaxial cables and its relationship with the cable construction and materials.
概述了同轴电缆的相位稳定性的原理,及其与电缆结构和材料的相互关系,也介绍了检测温度相位稳定性的试验方法。
The conduction of special cable and special phase lock loop technology makes high signal more accurate;
特种的传导电缆和特殊的锁相环技术使高度信号更精准;
Optical fiber composition phase conductor (OPPC) is an optical cable with optical fiber unit in phase conductor.
光纤复合相线(OPPC)是将光纤单元复合在相线中的光缆。
For real cables in rain-wind weather, it is likely that water rivulet is non-uniform along cable axis and the phase lag between each part of rivulet movement will be incurred.
实桥的斜拉索表面形成的水线位置沿索轴向有可能不均一,各部分水线的摆动可能存在位相差。
Signal processing circuit and demodulation circuit with an automatic phase-locked junction can recover the data signal from the cable.
解码电路对信号进行全面恢复处理,具有自动相位锁定功能。
Instead of the time consuming numerical computation, a simplified calculation of the maximum field strength is presented for the purpose of dimensioning the three-phase gas insulated cable.
为确定三相充气管道电缆的尺寸,本文提出利用最大场强的简化计算方法来取代繁复的数值计算。
Simulation results show that it is necessary to consider capacitance current compensation in the phase-splitting current differential protection scheme for HTS power cable;
结果表明,在高温超导电缆分相电流差动保护方案中必须考虑电容补偿;
The first class cable – suitable for one single –phase earthing – block time does not exceed one minute each time. Max. time not exceed 8 hours , and not exceed 125 hours in all in one year.
第一类——用于单相接地故障时间每一次一般不大于1min,亦可用于最长不超过8小时,每年累计不超过125小时的系统。
The first class cable – suitable for one single –phase earthing – block time does not exceed one minute each time. Max. time not exceed 8 hours , and not exceed 125 hours in all in one year.
第一类——用于单相接地故障时间每一次一般不大于1min,亦可用于最长不超过8小时,每年累计不超过125小时的系统。
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