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Abstract: A system by which the process of dynamic tension of yarn can be measured is studied.This system includes a force sensor with double holes beam structure and an electronic circuit for measuring.With the help of the system,the dynamic tension proc
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文摘:研究了一种测量络纱动态张力变化过程的系统.系统中设计了一种双孔梁力传感器和简易的测量电路板.该系统能够对络纱动态张力进行定量测定并绘制张力变化曲线,对研究络纱张力变化规律,分析影响张力变化的因素以及控制络纱张力波动,实现恒张力络筒具有重要的意义. |
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Abstract: A thermo-economical diagnostic mathematical model for pressurizedwater reactor (PWR) nuclear cogeneration plant is proposed based on heat assignment method.This model simplifies the calculation of thermal system and can be used to calculate the
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文摘:基于热电联产机组热量法分配的特点，建立了热电联产压水堆机组热力系统发生变化对热经济性指标影响的计算模型，提出了供热系统参数——供热回水率、回水温度、回水地点变化对压水堆机组热经济性影响的定量诊断数学模型，可将复杂的热力系统全面计算简化成3个一次方程.通过实例计算，验证了所提数学模型是正确可行的，同时具有概念清晰、计算简捷的特点. |
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Abstract: A time domain recursive low pass filtering algorithm based on Kalman filtering theo-ry is analyzed.
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文摘:分析了一种基于卡尔曼滤波理论的时域递归低通滤波算法。 |
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Abstract: A user-base computer-aided process planning (CAPP) system model is introduced which is aimed at machining various parts in small quantity production.Several problems,such as part information encoding methods are discussed in detail.
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文摘:介绍了一个基于用户的面向多品种零件机械加工的CAPP系统，主要介绍了其中零件信息处理方法，讨论了适于多种零件的信息编码系统和工艺设计系统的信息集成问题。 |
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Abstract: A vertical sandwich deep trench with a field limiting ring is proposed to improve the breakdown voltage of power devices and high voltage devices.Simulation result shows that nearly 100％ breakdown voltage of the plane junction can be realized.
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文摘:提出一种二氧化硅/多晶硅/二氧化硅夹心深槽场限制环新结构来提高晶体管的击穿电压.模拟结果显示,该结构可以使射频功率双极性晶体管的击穿电压几乎100％达到平行平面结的理想值. |
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Abstract: A village regulation is a regulation which all adults from the same village lawfully formulate together in accordance with their custom for self-restraint in order to meet the need of autonomy.
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摘要：村规民约是依照法律法规，适应村民自治要求，由同一村的村民在生产、生活中，根据习俗和共同约定而形成的自我约束的一种规范。 |
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Abstract: A wear-resistant electrode used in high stress state is studied.By adjusting electrode's component,we find a alloy system which is suitable to shredders with hammer.Microstructure and X-ray analyses indicate that the hardfacing microstructure co
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文摘:研制了一种适用于高冲击条件下抗磨堆焊焊条，通过反复调整焊条药皮组成，找到了可应用于锤式破碎机锤头堆焊的合金系。 |
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Abstract: A wide variety of natural products, e.g. alkaloids, β-lactames, biotin, amino sugars has been synthesized by 1,3-dipolar cycloaddition reaction between nitrones and alkenes.
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文摘:通过硝酮与烯烃化合物的1，3-偶极环加成反应合成了许多天然产物，如生物碱、β-内酰胺、生物素、氨基糖等。 |
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Abstract: ANSYS (Application for FEA) is applied for analysis of performance of pre-loaded hollow cylindrical roller Bearing (HCR).
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摘要：利用有限元分析软件ANSYS对预负荷空心圆柱滚子（HCR）轴承的承载性能进行分析。 |
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Abstract: Abstract The relation of organic synthesis and green chemistry is briefly described.The importance of atom economy in organic synthesis is emphasized.
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文摘:本文概述了有机合成和绿色化学的关系，并介绍了原子经济性的概念及其在有机合成中的重要性。对21世纪的化学发展提出了希望。 |
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Abstract: Abstract: This paper introduced question of the brine purify in the Jiangxi Salt Mine.The reaction jug reformation and economic effect.
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文摘:介绍了江西盐矿卤水净化存在的问题，对反应罐进行了改造，取得的经济效益。 |
