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The paper studied controlling rotor vibration with the super-elasticity of SMA and SFD, set up the new equation of sys tern vibration according to the stress-strain curve of SMA in super-elasticity state, used the nonlinear theory and the dynamic stabilit
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摘要研究利用形状记忆合金的超弹性和挤压油膜阻尼器控制转子振动，利用形状记忆合金在超弹性状态下的应力－应变曲线，建立了新的系统振动方程，运用非线性理论和运动稳定性理论研究转子在形状记忆合金控制下的振动状态，讨论了系统的稳定性条件，获得系统发生分岔时系统参数之间的关系；并提出了通过改变参数来提高系统稳定性和抑制振幅的方法，最后通过仿真验证了改进后的系统振动抑制效果。 |
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The paper studied the basic theoretic frame of DMDS (distributed monitoring and diagnosis system), put forward the definition, hiberarchy of DMDS and its function definition of each level, and analyzed the relation of DMDS and production control system.
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摘要研究了分布式监测诊断系统的基本理论框架，提出了分布式监测诊断系统的定义、层次结构和各层的功能定义，并分析了分布式监测诊断系统与生产控制系统的关系。 |
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The paper studied the effects of various ingredients such as film-former, preservatives, moisture-retaining agent and anti-oxidant in the emulsion system on strawberry preservation by edible coatings.
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摘要本论文主要研究在乳状液体系中各种涂膜保鲜成分如成膜剂、保鲜剂、保湿剂和抗氧化剂等对草莓进行涂膜保鲜效果的影响。 |
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The paper studies five important topics in the research of Xinjiang history: the administration of Xinjiang by the successive central governments; Xinjiang is the common homeland for various ethnic groups; diverse religions coexist in collision in Xinjian
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摘要本文对新疆历史研究中五个重大问题－历朝各代对新疆的治理，新疆是各民族共同生活的大家园，多种宗教在碰撞中并存，多元文化的共存、交融与互补，屯垦戍边的历史定位－进行了思考与探索。 |
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The paper studies in line with practice the time duration, objectives, contents and the approaches of analysis for the prediction of passenger flow in each stage as well us the methods for identifying the results of passenger flow prediction and presents
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摘要结合实际应用，对各阶段客流预测的年限、目标、内容和分析思维，以及对客流预测成果的控制性评判方法进行研究与探讨，在指导运营组织设计方面提供新的思路。 |
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The paper studies on the principal technologies on coal desulfurization and retardant mechanism of cement retarder and active mechanism of cement mixed material.
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摘要介绍了煤炭脱硫产物和它们作水泥缓凝剂、水泥混合材的研究。 |
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The paper studies on two different vegetation type areas in Jingyun Mountain in Chongqing City,which are broadleaved forests(Gordinya svchuanensvs)and bamboo (Phyllostachys edulis)forests.By contrasting the surface runoff and underground runoff in these t
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该文以重庆市缙云山的两个不同植被类型常绿阔叶林(四川大头茶)和楠竹林小区为研究对象,对小区中典型降雨后的地表径流、地下径流的实测资料进行对比分析.结果发现在相同降雨条件下,楠竹林的地表径流量与地下径流量明显要比常绿阔叶林的大,楠竹林地表径流和地下径流出现的时间也比常绿阔叶林早;两种植被的地表径流与地下径流过程具有一定的相似性,地下径流量都比地表径流量大. |
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The paper studies systemically the formation of experiential marketing depending on constructing the formative model of experiential marketing and analyzes the connotation of it and then puts forward some strategies of management to direct enterprises.
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摘要本文在全面分析顾客体验本质内涵的基础上，通过构建顾客体验的形成机理模型，深入考察了顾客体验的形成机理，并据此进一步提出了体验营销的实施策略，以更好地指导企业的经营实践。 |
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The paper studies that existence and uniqueness of fixed point for decreasing strict-set-contraction operator in product space.
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摘要研究了乘积空间中严格集压缩减算子不动点存在唯一性间题，在弱连续的条件下，得到了不动点的存在唯一性和迭代收敛性。 |
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The paper studies the application of rough set theory in data mining, presents a data mining approach based on rough set theory.
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摘要研究了粗糙集理论在数据挖掘中的应用，提出了一种基于粗糙集理论的数据挖掘算法。 |
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The paper studies the floods happened both in north and south of China through systematic analysis of the factors of natural background, population, flood control projects and economic strength, and points out that the flood control works in China will be
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透视1998年南北洪水，通过对自然背景因素、人口因素、防洪工程现状及经济能力限制等的系统分析，指出在今后30-40年间，我国防洪事务将面临空前严峻的挑战。 |
