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The radiation environment on the surface of Mars is a potential threat for future manned exploration missions to this pl......
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As a state of ceremonies,the etiquette culture,which occupies a significant position in the Chinese culture,has gone dee......
The Characteristic of Dose Equivalent Rates of Photon and Neutron Outside the Treatment Room under H
Objective:The study aimed to explore the characteristic of dose equivalent rates(DERs)of photon and neutron outside the ......
Lag of accommodation predicts clinically significant change of spherical equivalents after cyclopleg
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Using the active feedback control system on the elastic wave metamaterial,this research concentrates on the sound transm......
Precipitation phase(e.g., rainfall and snowfall) and snow(e.g., snowpack and snowmelt runoff) in high-mountain regions m......
Stochastic Analysis of Short-Term Structural Responses and Fatigue Damages of A Submerged Tension Le
In connection with the design of floating wind turbines,stochastic dynamic analysis is a critical task considering nonli......
Thin-film polymer microelectrcxje arrays(MEAs)facilitate the high-resolution neural recording with its superior mechanic......
The aim of this study is to establish that, the equivalent class <img src="Edit_d35dd794-39a5-4ce4-992b-5130559b3c82.pn......
where γ（v） = a（v- b）<sup>2</sup> + c with positive a, b, c. As a simple mathematical model ofmono-species forest with two a......
A new shell finite element method (FEM) model with an equivalent boundary is presented for estimating the re-sponse of a......
We study the quasisymmetric geometry of the Julia sets of McMullen maps fλ(z)=z^m+λ/ze, where λ∈C\{0}and g and m ax......
Exact stationary solutions independent of energy for strongly nonlinear stochastic systems of multip
A new procedure is proposed to construct strongly nonlinear systems of multiple degrees of freedom subjected to parametr......
The aim of this study is to establish that, the equivalent class which is made up of homotopic loops is a group with re......
具有诱导细胞分化作用及癌和皮肤病化学治疗作用的维甲类化合物，不仅要求分子一端有疏水性、另一端为极性羧基和整个分子的共轭性，而......
从能量守恒、电荷守恒定律或拉氏函数的规范不变性、变分原理等基本规律出发 ,建立了麦克斯韦方程组 ,加深了对麦克斯韦方程组反映......
,Equivalent materials simulation experimental study on bed separations developing and mining subside
A new experiment was made on the developing of bed separations and mining subsidence from Tangshan T2192 working face by......
Characteristic Verification and Parameter Optimization of Airbags Cushion System for Airborne Vehicl
The major methods to investigate the airbags cushion system are experimental method,thermodynamic method and finite elem......
Equivalent model of close-packed film cooling holes in nickel-based single crystal cooled blade base
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
Vacuum Dielectric Recovery Characteristics of a Novel Current Limiting Circuit Breaker Base on Artif
A novel current limiting circuit breaker employs zero current switching method in cutting off DC current, which gives ou......
在机电电磁暂态混合仿真中，一侧系统计算需要对对侧系统进行等值建模。本文基于 RTDS/CBuilder 提出了一种计及机电侧系统三序等值......
针对我国长期以来,对复杂系统的电磁兼容管理主要依赖于对设备电磁兼容测试来发现问题,极大可能导致产品的“过设计”和“欠设计”......
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In this paper, the three major methods used by Shapiro in translating the names in Outlaws of the Marsh are analyzed in ......
为进一步提升光源性能,需要对加速器非线性束流动力学问题、宽带束流阻抗问题、恒流模式下注入脉冲引入的束流位置扰动问题进行研......
为了了解农村癌症费用,评价其费用负担、项目内容、治疗状况,采用典型选样与随机抽样相结合的方法,调查核算了主要癌症治疗及相关......
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本文讨论了两个重要极限公式、洛必达法则以及等价无穷小代换在确定型和不定型幂指函数求极限过程中的应用,给出并证明了相关定理.......
Laboratory investigation of the anisotropic confinement-dependent brittle-ductile transition of a Ut
This paper was developed as part of an effort by the National Institute for Occupational Safety and Health(NIOSH)to iden......
In order to improve the reliability of the mechanical movement of the rotary electronic dobby, the kinematics analysis o......
根据[1]、[2]文建立的非线性时变系统动力计算方法,本文提出了更接近我国实际的非线性轮轨动力分析模型,建立了系统运动方程并组程......
从直流电动机空载启动电流按指数衰减的变化规律,联想到电容器的充电电流也按指数规律衰减的特点,提出了直流电动机是否也具有"电......
从能量守恒、电荷守恒定律或拉氏函数的规范不变性、变分原理等途径建立麦克斯韦方程组，加深了对麦克斯韦方程组反映电磁现象普通规......
A novel control scheme is presented by using sliding-mode control for boost converter operating in continuous conduction......
为了解乌桕类可可脂(CTCBE)缓冷结晶横向胀罐爆裂原因,研究CTCBE结晶过程中的膨胀特性,采用流体静力法测试了不同等温结晶条件下CT......
根据2010年抚顺市环境统计数据,用等标污染负荷法,对抚顺市2010年的工业废水进行了评价,并得出了2010年抚顺市工业废水中的主要工......
利用RNG k-ε模型,对100 mm口径锥体差压式流量传感器进行了CFD数值模拟实验,其等效直径比β值分别为0.50、0.65、0.85,前锥角分别......
针对济钢双机架可逆冷轧机负荷分配不合理，采用等功率裕量法，并考虑轧制力、转矩和速度等约束条件，对负荷分配进行了优化，提高了生产效......
茉莉酮和二氢茉莉酮是一类名贵的香料,此类化合物的合成一直是人们所关注的问题。已有许多报道,其中包括庚醛、1-硝基庚烷与甲基乙......
用数值方法求取了换热管在不同的档板间隙、刚度及激振力下的撞击力及动态响应。对撞击力作等效线性化处理,将间隙支承转化为等效......
Principle analysis and electromagnetic design of half－bridge commutating circuit for thyristor arc w
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引入和研究德摩根拓扑代数的可列紧和序列紧，探讨了这两种紧性之间的关系以及这两种紧性与德摩根拓扑代数的紧之间的关系。......
为降低对大规模风电机群故障暂态仿真计算量,首先给出同步坐标系crowbar投入DFIG风电机组及其机群状态空间模型。其次,基于H∞范数......
Various E-plane strip discontinuities are analyzed by the moment method and gener-alized network analysis technique.By i......
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充填砂砾随携砂液进入地层时的运动状态对充填防砂的效果有着重要的影响，也是研究充填防砂作用机理的关键所在。利用液固两相流理论......
裂缝性气藏储层中的裂缝是其气井产能的主要贡献者,裂缝的形态与位置对气井产能影响较大。传统裂缝性气藏气井产能模型多基于等效......
