single-span beam

Effects of pulsed laser parameters such as laser wavelength, beam spot size, pulse energy and pulse duration on threshold energy in laser simulating Single Event Effect testing are analyzed.

分析了在激光模拟单粒子效应试验中激光波长、束斑大小、脉冲能量、脉冲宽度等脉冲激光参数对阈值能量的影响。

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Stress Concentration Factors for Three-Point Bending Beam with Single-edge U-shaped Notch

U形切槽三点弯曲梁的应力集中系数

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Design narrow gap groove suitable for dual beam laser welding thick plates with filler wire, guaranteed technological requirements of single pass multilayer welding and low deformation, increased neutral of wire and light to some extent.

设计了适合于厚板双光束填丝多层焊的窄间隙坡口形式，保证了厚板激光填丝焊的单道多层焊与低变形工艺要求，并一定程度上提高了丝与光对中性。

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Based on the Xia men Ma xin main bridge, three-dimensional space finite element model is set up to simulate the hybrid girder cable-stayed bridge with single slanted pylon and fixed pier-pylon-beam system, and the structural dynamic characteristics and seismic response are analyzed in this thesis.

以厦门马新大桥主桥为工程背景，建立塔、梁、墩固结体系独塔混合梁斜拉桥的三维空间有限元模型，对其结构动力特性和地震响应进行了计算分析。

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It includes shear beam type, bending beam, single type, canister type and so on.

它包括剪切梁式, 弯梁, 单一型, 筒型等.

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For the cylindrical latticed intersected three dimensional beam system reticulated megastructure with single layer latticed intersected cylindrical shell substructure, the construction of structure, form parameters and support conditions are analyzed in this paper.

本文针对子结构为单层叉筒网壳的圆柱面交叉立体桁架系巨型网格结构，分析了结构的构成、形体参数、支承方式等；

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The movable targets are set up afterward the electron beam inject jet to get different kinds of single mono-energetic particle beam for the high energetic detector calibration in the second target chamber on E2 line.

在E2线上的第二靶室内，为了得到用于高能探测器刻度所需要的不同能量和种类的单能粒子束，在靶室的电子束流出口处安装了可移动的目标靶。

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Test beam provides single particle beam for different experimentation.

试验束能提供不同种类、一定动量的单粒子束流。

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And, to give the boundary conditions. ( 3) To determine the initial value of the electric field, magnetic field and electron beam. To simulate the interaction process of electron beam and electromagnetic waves in a single cycle in the helix traveling wave tube.

对电场、磁场以及电子注相关物理量初始值进行了确定，编程对螺旋线行波管单个周期内电子注和电磁波相互作用过程进行了数值模拟。

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In order to enhance resolving capability for multiple particles events and improve momentum resolution of single particle, the magnetic spectrometry system of E3 beam line in test beam is needed to be designed again.

随着BEPCⅡ的改造完成，E3束中多粒子事例将会增多。为了增强双粒子事例的鉴别能力，进一步提高单粒子的动量分辨率，试验束E3线的磁谱议系统需要重新做出设计。

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