Finite element method was used to simulate the residual stress in soldered joints of QFP device with the same distance and number of leads,respectively.
对结果进行分析比较,从应力曲线图可以看出,由于残余应力累积的原因,应力具有迭加性;在引线数目相同的QFP器件中,TQFP64焊点的应力最小,VQFP64次之,SQFP64最大。
Improvement and Analysis of Overheat of Lead Terminal in LV Winding;
低压绕组引线端子过热的原因分析及改进
New High Frequency Welding Technique of Transformer Lead;
变压器引线高频焊接新工艺
Calculation for Mechanical Strength of Transformer Leads in Short-Circuit Condition;
变压器引线短路机械强度计算
The integral gold plating on the hybrid integrated circuit (HIC) package that has more leads and bigger volume will lead production cost to increase.
混合电路外壳引线多、体积大 ,用整体镀金技术导致成本加大 ,而封装时只需引线镀金。
The transport characteristics of a system formed by a quantum dot connecting to two ferromagnetic leads, whose magnetic moments are oriented at an angle with respect to each other, have been studied.
利用Bulka建立的量子点模型,研究了当左右引线的磁矩夹角为θ时该体系的量子输运性质;利用Keldysh非平衡格林函数方法研究了电流随偏压V、温度T和磁矩夹角θ的变化,给出了近滕(Kondo)区中的非线性电导,并得出电导中的近滕顶点高度受磁矩夹角θ的调制的结论。
The applied stresses of lead during test were analyzed and a failuremodel of fatigue fracture for leads was established.
通过SEM观察了经历不同弯曲次数疲劳试验的可伐合金引线样品,分析了引线在弯曲试验中所受的应力,提出了外引线弯曲疲劳断裂的失效模型,并讨论了施加的载荷、玻璃弯月面以及表面覆盖层对外引线弯曲疲劳断裂行为的影响。
Experiment method of 330 kV transformer without remove the down-lead;
330kV变压器不拆引线的试验方法
This paper analyzes the damage condition of a 220 kV transformer which suffered short circuit accident at low-voltage side,and finds that excessive leading wire caused the accident.
对一起220 kV主变低压短路事故的损坏情况进行了检查,对事故原因进行了分析,得出造成此次事故的原因是主变低压引线过长。
Can't allocate the requested number of pins (unknown error).
不能分配请求的引线数量(未知错误)。
Can't allocate the requested number of pins because the graph is not stopped.
因为没有停止图形，所以无法分配请求的引线数量。
"Can't allocate the requested number of pins because there is not enough memory available.
"因为没有足够的内存，所以不能分配请求的引线数量。
Convenient to Linear Algebra Research Based on Matlab
引入Matlab辅助线性代数研究
Research on Curved Path Real-time Interpolator with Feedrate Guide Curves
基于进给速度引导曲线的参数曲线实时插补器
An Approach to Introducing the Nonlinear Algebraic Equation System into Advanced Algebra Curriculum;
非线性代数方程组理论引入高等代数课程研究
Parameter Extraction of LFMCW Fuze Signal Based on Periodic Ambiguity Function
基于模糊函数的无线电引信信号参数提取
a spiral of insulated wire that introduces inductance into a circuit.
能够把感应系数引入电路的螺旋状绝缘线。
“（Callsign）,vectoring for (position in the circuit),runway (number).
1“（呼号），雷达引导到（起落航线的位置），跑道（数值）。”
Chaoti Synchronization of Network of Chaotic Attracters Using Nonlinear Coupling Function;
非线性函数耦合的吸引子网络的混沌同步
Study on the Attractors and Dimensional Estimates of Two Nonlinear Evolution Equations;
两类非线性发展方程的吸引子和维数估计
Study on Quantitative Ecology Alongside Wanjiazhai Yellow River Diversion Project;
万家寨引黄工程沿线植被数量生态学研究
Brief introduction of eigenvalue and eigenvector in linear algebra;
浅谈《线性代数》中“特征值与特征向量”的引入
Harq Transmission System for the Wireless Multi-Locomotive Synchronic Operation
多机牵引无线同步控制的混合ARQ数据传输系统
Existence of Exponential Attractors for the Nonlinear ExtensibleBeam Equations
非线性可拉伸梁方程指数吸引子的存在性
On-site Electric Parameter Measurement of 500kV Zinc Oxide Arrester without HV Lead Dismantled
现场不拆引线测试500kV氧化锌避雷器电气参数
Data Storage and Index Technique for Wireless Sensor Network
无线传感器网络的数据存储和索引技术
This includes text, numerical calculations, mathematical derivations, diagrams, graphs, computer programs, and output.
这包括本文，数字的计算，数学的引出，图表，曲线图，计算机计画和输出。