期刊文献+
共找到5篇文章
< 1 >
每页显示 20 50 100
表面电机水平方向运动的模拟内环模型及控制 被引量:1
1
作者 刘学鹏 梅雪松 +1 位作者 张洪丁 江贤贵 《系统仿真学报》 CAS CSCD 2004年第1期162-165,共4页
表面电机是通过对平台的无摩擦悬浮,实现高速高精度的目的,它是下一代制造业技术的核心。国外对它的研究已经开展了十多年,国内尚无正式的文献报道。本文介绍了表面电机的工作原理并对电磁力进行计算分析。根据力学方程建立了表面电机... 表面电机是通过对平台的无摩擦悬浮,实现高速高精度的目的,它是下一代制造业技术的核心。国外对它的研究已经开展了十多年,国内尚无正式的文献报道。本文介绍了表面电机的工作原理并对电磁力进行计算分析。根据力学方程建立了表面电机水平方向运动的模拟内环模型,并对模拟内环反馈控制进行了研究,提出了无加速度感应器的控制方法。仿真结果表明,该模型具有较高的动态性能和稳定性。 展开更多
关键词 表面电机 模拟内环 电磁场 PID
下载PDF
纳米加工平台X-Y方向运动的数模控制策略 被引量:1
2
作者 刘学鹏 郝晓红 +1 位作者 张宏丁 马腾 《微细加工技术》 2003年第4期73-78,共6页
介绍了纳米加工平台的工作原理,并对电磁力进行计算分析。根据力学方程建立了纳米加工平台的X Y方向模拟内环模型和数字外环模型,并对数模两环反馈控制进行了研究,提出了无加速度感应器的内环控制和模糊控制外环方法。仿真结果表明,该... 介绍了纳米加工平台的工作原理,并对电磁力进行计算分析。根据力学方程建立了纳米加工平台的X Y方向模拟内环模型和数字外环模型,并对数模两环反馈控制进行了研究,提出了无加速度感应器的内环控制和模糊控制外环方法。仿真结果表明,该模型具有较高的动态性能和稳定性。 展开更多
关键词 纳米加工平台 电磁力 模拟内环 数字外 PID 模糊控制
下载PDF
Cell Engineering in Vitro and in Vivo for Environmental and Medical Biotechnology
3
作者 Pryhodchenko, E. Molchanova 《Journal of Pharmacy and Pharmacology》 2016年第7期366-374,共9页
The analysis was made over the leukograms of leukocyte concentrate in venous blood of healthy people (77 persons) and a group consisting from 18 persons with hybrid cells (LE-phenomenon) detected in them. Authors ... The analysis was made over the leukograms of leukocyte concentrate in venous blood of healthy people (77 persons) and a group consisting from 18 persons with hybrid cells (LE-phenomenon) detected in them. Authors constructed in vitro processes, which take place in vivo, and got the artificial morphological analogue of LE-cells through a physical and chemical agent--polyethylene glycol. The suggestion was made that the formation of hybrid cells in vivo (on the example of lupus erythematosus) depends on a contact of examinee with ecological toxicants. 展开更多
关键词 Cell engineering leukoconcentrate hybrid cells LE-phenomenon ecotoxicants.
下载PDF
Research Progress of Migration and Transformation of Pharmaceuticals and Personal Care Products in Underground Environment
4
作者 Zhang Fang Zhe Ma +1 位作者 Xinmin Xie Baizhong Yan 《Journal of Environmental Science and Engineering(B)》 2013年第12期736-740,共5页
With the increasing use of PPCPs (pharmaceuticals and personal care products), the impact caused by the accumulation of PPCPs on the environment has become increasingly serious and has attracted considerable attenti... With the increasing use of PPCPs (pharmaceuticals and personal care products), the impact caused by the accumulation of PPCPs on the environment has become increasingly serious and has attracted considerable attention. In the last 10 years, major studies on PPCPs have focused on the sources and analytical testing of concentrations in the environment. Afterward, studies have shifted to the transfer and transformation of PCPPs in the environment and to the environmental risk assessment of PPCPs. Studies on PPCPs in the underground environment have mainly focused on their adsorption, desorption, transfer, and transformation in the aeration and saturation zones. The main methods applied in these studies include indoor simulation experiments and outdoor sampling and testing. These studies have mainly considered one dimension, and most of them have concentrated only on the aeration or saturation zone. Therefore, the main developing directions of studies on PPCPs are the comprehensive study of the transfer and transform process from source to sink in the underground environment and the establishment of an effective and efficient PPCP detection system, 展开更多
关键词 PPCPS transfer and transformation POLLUTION underground environment.
下载PDF
The Application of Computer Simulation Technology in Building Design
5
作者 Ling Yu 《International Journal of Technology Management》 2014年第7期148-151,共4页
From the simulation software selection, meteorological data collection, model, boundary conditions, calculation setting and evaluation indicators, the paper summarize simulation method of wind, light and sound, summar... From the simulation software selection, meteorological data collection, model, boundary conditions, calculation setting and evaluation indicators, the paper summarize simulation method of wind, light and sound, summarize three kinds of environmental. The paper study on optimization analysis method of green building from four aspects of building orientation, architectural form, architectural layout and indoor environment, and puts forward the optimization scheme of the typical simulation analysis of simple questions; provide guidance for optimizing the design of green building. Finally, ECOTECT can adapt to the current domestic engineering design and consulting on green building simulation and design requirements, and has a broad application prospect. 展开更多
关键词 Building energy efficiency ECOTECT green building environment simulation
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部