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Abstract: The oscillation criterion for the solutions of a class of neutral functional differential equations with positive and negative coefficients be investigated, some new sufficient conditions for all solutions of the equations to be oscillatory are
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文摘:研究一类具有正负系数的中立型泛函微分方程的振动性,得到了其解振动的新的充分条件. |
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Abstract: The out-particles of lubricating grease, which are splashed from rolling bearings or linear motion bearings, adhere to liquid crystal manufacturing equipment or hard disks, resulting in damage to product functions or capability.
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文摘:滚动轴承或直线运动轴承中的润滑油脂，可能飞溅出颗粒，粘附在液晶制品或硬盘上，导致设备失效。 |
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Abstract: The outflow through gate controlled multi-opening spillway of Yinhe Reservoir was analyzed.The analysis results were checked by the site observed data.
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文摘:分析了音河水库多孔有闸门控制的溢洪道出流，并用出流的实测资料进行了检验。 |
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Abstract: The output of ESO of ADRC has sufficient information to identify the parameter.If the controlled plant has known part and we use this part to compensate the input of ESO,the estimation precision of ESO can be improved,and the precision of parame
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文摘:自抗扰控制器中扩张状态观测器的输出提供了进行系统参数辨识的足够信息，受控对象若有已知部分，把此部分补偿给扩张状态观测器输入项，能提高扩张状态观测器的逼近精度，从而也能提高其输出值来进行参数辨识的精度. |
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Abstract: The pH control system of centralization process in sugar refinery and the predictive controller designed by using dynamic array contro1 algorithm are presented.
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文摘:介绍了糖厂酸碱中和的酸度控制系统以及采用动态矩阵控制算法设计的预测控制器。 |
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Abstract: The paleochannel sandstone-type uranium deposit which can be exploitated by low-cost in-situ leach technology is one of the most economic and competitive uranium resources in recent uranium industry.
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文摘:可采用低成本、原地浸出工艺开采的古河道砂岩型铀矿是当今铀工业中最具经济价值和竞争力的铀资源之一。 |
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Abstract: The paper accounts of the defects in the former design aboutBDK62 series of main shaft-pan system,reforms the defects of the main pan system.
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文摘:叙述了BDK62系列矿井主扇系统原设计中存在的问题，针对这些问题进行了相应的改造，效果良好。 |
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Abstract: The paper analyses the main problems of environment on campus.In the light of the environment design for the front courtyard of No.1 Private Middle School in Shijiazhuang,the author states his view,that is ,the outdoor environment should be mult
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文摘:分析了校园室外环境存在的主要问题,提出了校园室外环境的多层次、多功能和多景观性,并结合石家庄市私立一中办公大楼前庭园的规划设计,阐述了当前校园室外环境建设的新思路. |
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Abstract: The paper analyses the present situation of water resources in Yeji reform and development area, and puts forward some questions and countermeasures.
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摘要:文章对叶集改革发展试验区水资源现状进行分析，指出存在问题及对策。 |
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Abstract: The paper analyses the present technology conditions of HS-WEDM.It is pointed out the important directions to develop the technology of HS-WEDM are using PC based CNC system,applying AI based theories into computer software,bettering machine str
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文摘:分析了数控高速走丝电火花线切割加工技术的现状，指出了其今后的发展方向是：基于PC的数控系统的开发、人工智能(AI)技术的运用、机床设计的改善及多次切割工艺的应用。 |
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Abstract: The paper analyses the principle, adjusting and c ommon fault removing of intermediate frequency power supply with novoltage start ing.
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文摘:分析了零压启动式中频电源的原理、调试及常见故障排除。 |
