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Abstract: The new method of measurement profile error of any line with error separation technique is studied.Based on developing mathematical models,computer imitation is made .
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文摘:研究了在数控加工中利用误差分离技术测量线轮廓度误差的新方法，在推导数学模型基础上进行计算机仿真。 |
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Abstract: The new method of real-time seperation of the rotary errors of axis system with three sensors synchronously in the same position, which is put forward in this paper, can seperate both of system and random errors during the measuring process and
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文摘:本文提出的三测头同方位同步测量实时分离轴系回转误差的新方法，能在一次测量过程中将轴系回转误差的系统误差和随机误差一并分离，可提高测量准确度几倍至几十倍。 |
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Abstract: The new technology of cross wedge rolling has been using in production of blank forming of oil ejector body.
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文摘:介绍了一种楔横轧制坯—精密模锻成形喷油器壳体毛坯的新工艺，及楔横轧模具设计工艺参数的选取。 |
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Abstract: The newest advances in ultrashort pulse laser technology are briefly reviewed, and the several most important applications of ultrashort pulse laser, such as ultra-high speed optical communication, storage of great capacity information, study of
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文摘:评述了国际上超短脉冲激光技术的最新研究进展以及超短脉冲激光在超高速光通讯、海量信息存储、光合作用研究、化学反应过程研究等领域广泛的应用状况。 |
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Abstract: The newest mannfacturing,sintering technology on superfine and nanom eter hardmetal powder,manufacturing technology of cemented carbide,as well as re covery technique on tungsten materials and hardmetal wastes were comprehensively expounded in t
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文摘:综合评述了第八届国际钨讨论会关于硬质合金领域的超细、纳米级粉末制造技术、烧结技术、硬质合金制造技术以及钨材料和硬质合金废品的回收利用技术，并对硬质合金的发展趋势、前景应用等新动向及环境问题提出了参考性建议。 |
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Abstract: The nommiformity of solid state image sensor which degrades performance severely,even no signal can be detected must be corrected in the condition of present technology.In this paper, the cause of nonuniformity generation is analyzed.Based on pr
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文摘:分析了非均匀性产生的主要原因，基于性能价格比和实时快速的原则，采用一点和两点法对固体图像传感器的非均匀性进行了校正并讨论了系统的校正范围，给出了用于实时校正的硬件电路框图和实验结果，取得了较满意的校正效果。 |
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Abstract: The nonlinear finite element dynamic simulation model for an oscillation mechanism with 4-eccentric axis for continuous casting machine is established by means of the theory of kineto-elastodynamics.
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文摘:根据运动弹性动力学的理论方法，建立了连铸机四偏心式振动机构非线性有限元动力学仿真模型。 |
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Abstract: The nuclear magnetic resonance is a new geophysical technique for groundwater explration. characterized by direct water survey.
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文摘:地面核磁共振找水技术是一种新的地球物理勘探技术，具有直接找水的特点。 |
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Abstract: The nucleosome, the structural unit of chromatin, is known to play a central role in regulating gene transcription from promoters.
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摘要：核小体作为染色质的结构单位，在基因启动子区域调节基因转录中具有重要的作用。 |
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Abstract: The numerical simulation of the rheological warm extrusion molding of the missile shell,a kind of aluminum alloy part,has been carried out,including the simulation of metal flow in the mold cave,velocity field,stress field,strain field,temperatu
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文摘:对铝合金零件弹托在温挤条件下的流变成形过程进行了数值模拟，其中包括对金属在模具型腔中的流动情况、速度场、应力场、应变场、温度场、节点力等的数值模拟。 |
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Abstract: The objective of this paper was to develop a semiautomatic method for the translation of assignment statements into their corresponding GSCCT expressions, and thus to facilitate automatic creation of database of generic chemical structures in pa
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文摘:本文研究了自然语言处理技术在药物专利检索中的应用,开发出一套翻译软件,能够将药物专利中对族性变量的文本描述半自动化地转化为符合规则的GSCCT格式,为准确、高效地建立药物专利检索数据库打下了基础. |
