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Abstract: A supply and demand coordination analyzing model based on the theory of the gray relational entropy has been developed using the theory of gray systems to combine the gray connectedness and gray entropy,providing the analysis of the coordination
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文摘:利用灰色系统理论，把灰关联度与灰熵结合起来，建立了基于灰关联熵理论的供需协调分析模型，为水资源供需协调分析提供新的方法，从而进一步完善了水资源评价体系. |
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Abstract: A surveillance study on enzoonostic nature of HFRS has been done in September1999,in the villages of Furao, Xinhua and Qianjin of Dayangshu District of Inner Mongolia.
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文摘:于1999年9月17-20日对内蒙古自治区呼伦贝尔盟鄂伦春自治旗大杨树镇的3个自然村(富饶对、新华村、前进村)的居民区和田野进行了肾综合征出血热(HFRS)疫源地性质调查。 |
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Abstract: A survey of an institution indicated that the eligibility rate of rediation intensity of ultraviolet lamps in microbiological laboratories were 32.2%？
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文摘:经调查，某单位消毒专业与非消毒专业微生物实验室紫外线灯辐照度值合格率分别为100%与32.2%。 |
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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。 |
