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Abstract: Have connected with IR target signature research, this paper deals with the principle and realization for the IR imaging terminal-guidance technology of an air-to-air missile in clutter backgrounds.The radiation signature of clutter earth backgr
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文摘:本文结合对目标红外特性的研究,论述了在复杂背景条件下空-空弹红外成像末制导技术的原理和实现,分析了地面背景的辐射和散射的特征;综合分析了军用喷气式战斗机作为主要被攻击对象的红外辐射特性,并给出了目标红外特征提取的多种方法和算法. |
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Abstract: Having analysed the inadequacy of the traditional education model in cultivating the pupils' ability of making innovations,the author puts forward the proposition of the new education model:taking learning as the principal thing.Then,the essay e
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文摘:本文从分析传统教学模式对于学生创新能力的培养存在不足入手，提出了“以学为主”的新的教学模式的构想，并阐述了这种教学模式的主要特点以及运用“以学为主”教学模式应注意的问题，从理论上证明了“以学为主”的教学模式是院校教育系统改革的一个重要环节，也是开展以“创新教育”为核心的素质教育的必然要求。 |
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Abstract: Having conducted investigation into problems related to the macro development of exploitation of Pearl River Valley's water power resources，the authors discuss water power resources of the valley and conditions and level of their exploitation an
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文摘:对珠江流域水能资源开发利用宏观发展有关问题进行了研究，着重论述本流域水能资源及其开发利用条件和开发程度，根据各省(区)经济发展、电力规划和区域电网结构建设的可能性，探讨21世纪前期，重点是21世纪前20年开发的战略部署。 |
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Abstract: Heat-resistant commercial electric detonators applic able to mines were studied.The detonator can be used under the mine when the hig h temperature coal layer in the fire area was exploited,and the performance of i ts resistance to the heat has
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文摘:研究了适用于煤矿井下火区高温煤层开采的具有一定耐热性能的工业电雷管，并对其耐热性能进行了测试。 |
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Abstract: Heilongjiang Province is a typical seasonal frozen earth area in our country.The dynamic variation character of groundwater table in the province differs due to the effect of frozen earth.During application of the dynamic information,especially
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文摘:黑龙江省是我国典型的季节性冻土区，受其影响，地下水位动态变化特征有其特殊性，故在动态资料分析中特别是在地下水资源计算参数的确定上应引起注意。 |
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Abstract: Higher fatigue strength for the thermal and mechanical load were demanded by the heavy duty engine piston due to the critical requirement of the engine.
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随着发动机强化程度的不断提高，要求活塞具有更好的抗机械疲劳性能和抗热疲劳性能。 |
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Abstract: Highway communication is an important physical factor for small towns' development .People should make a lead plan for the space correlation between highway and small towns' development for the purpose of optimizaion and beautification of small
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文摘:公路交通是小城镇建设发展的重要物质因素，要超前规划好公路和小城镇发展的空间关系，使城镇环境优化、美化。 |
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Abstract: Hill mourning the special and advantageous natural conditions, Ailaoshan become enormous natural biological species of germplasm resources gene pool, Yunnan as animals and plantskingdom of natural museumand specimen garden,is a variety of integr
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摘要：哀劳山特殊而优越的自然条件，使哀牢山成为巨大的天然生物种的种质资源的基因库，成为云南动、植物王国中的天然博物馆和标本园，是多种自然科学的综合实验地，是众多学科的理想的科学考察和研究基地，是开展科考、探险、摄影、科研、回归自然、森林的首选之地，本文通过对哀牢山爬行纲的抽取调查，对哀牢山的爬行纲给出一个较系统的，完善的叙述。 |
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Abstract: Hirudin is the potent antithrombotic factor found in nature.Hirulog is a dind of peptides designed by imitating hirudin.
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文摘:水蛭素是迄今发现的最强的天然凝血酶抑制剂，水蛭肽是模仿水蛭素与凝血酶的相互作用机制而合成的肽类化合物。 |
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Abstract: How to estimate the storage failure rate using periodic inspection data is important and difficult in electronic product's storage reliability research.
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摘要：利用定期检测数据求解贮存失效率是电子产品贮存可靠性研究的重点和难点。 |
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Abstract: Human body modeling is an important research work in the fields of biomedicine and computer engineering.On the basis of NURBS FFD (free-form deformation),a motion modeling method is discussed to simulate the bend of human leg and corresponding d
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文摘:如何建立人体各部分的数字模型是生物医学和计算机工程界较为关心的研究课题.利用基于NURBS的自由变形方法模拟膝关节弯曲和肌肉变形，并在二阶B样条基函数的基础上，依据关节的解剖结构，推导了符合膝关节运动特点和肌肉特性的计算公式.实验证明，采用适当的自由变形网格，利用推导的公式能够获得较好的膝关节弯曲和肌肉变形视觉效果.与采用曲面片插值的方法相比，该方法简单有效，可以方便地应用于人体其它关节的运动建模. |
