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航天测控站大动态控制的实现 被引量:1
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作者 汪晓燕 《电讯技术》 北大核心 2004年第3期91-94,共4页
介绍航天测控通信系统中首区测控站微波接收大动态控制的实现方法,采用"二状态"断续自动控制方案和高性能大动态控制模块,达到96dB的大动态控制,实现了抗强信号互调、高灵敏度接收及和、差通道相位、增益的高一致性。
关键词 载人航天 测控站 大动态控制 干扰
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发射场区USB大动态控制功能的实现方法
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作者 杨福涛 《飞行器测控学报》 2002年第4期49-52,共4页
本文对载人航天测控系统中发射场区USB大动态控制问题进行了理论分析,阐述了适用的解决措施,设计了试验验证方法,试验结果表明该方法是适用有效的.
关键词 发射场 载人航天 S频段统一测控系统 USB 大动态控制
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Organizational Change and Dynamics of Control: An Analysis of Italian Call Center Workplace
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作者 Alessia Berni Mario Pezzillo Iacono Marcello Martinez 《Chinese Business Review》 2012年第4期402-410,共9页
The main goal of the paper is to interpret the concept of organizational change in the perspective of critical management studies, by analyzing both the discourses and the control practices used by management. We aim ... The main goal of the paper is to interpret the concept of organizational change in the perspective of critical management studies, by analyzing both the discourses and the control practices used by management. We aim at denaturalize the concept of change related to transition from a bureaucratic model to a professional (post-bureaucratic) model of the call centers organizational design, showing how these discourses and practices reproduce control systems. For this purpose, two cases study of call center outsourced industry are presented. On one hand, we emphasize the bureaucratic nature of call center A associated with standardization of processes and products and where work is highly controlled and routinised. On the other hand, we observe a different image of call center: call center B can be described as a place where work is customized, workers are considered key resources with higher competences and skills that are able to give customers unique solutions and to give answer to complex questions. We suggest that these "new practices" and "new organizational approaches" are merely illusions of change. We argue that in professional model (call center B), control institutionalized through technology is strengthened and deepened by the use of post-bureaucratic control in shaping organizational behaviors, reproducing a Panopticon structure both in terms of electronic surveillance and in terms of behavioral (self) regulation and discipline 展开更多
关键词 call center organizational change post-bureaucratic control SELF-REGULATION PANOPTICON
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Risk analysis of dynamic control of reservoir limited water level by considering flood forecast error 被引量:16
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作者 ZHANG YanPing WANG GuoLi +1 位作者 PENG Yong ZHOU HuiCheng 《Science China(Technological Sciences)》 SCIE EI CAS 2011年第7期1888-1893,共6页
Flood control forecast operation mode is one of the main ways for determining the upper bound of dynamic control of flood limited water level during flood season. The floodwater utilization rate can be effectively inc... Flood control forecast operation mode is one of the main ways for determining the upper bound of dynamic control of flood limited water level during flood season. The floodwater utilization rate can be effectively increased by using flood forecast information and flood control forecast operation mode. In this paper, Dahuofang Reservoir is selected as a case study. At first, the distribution pattern and the bound of forecast error which is a key source of risk are analyzed. Then, based on the definition of flood risk, the risk of dynamic control of reservoir flood limited water level within different flood forecast error bounds is studied. The results show that, the dynamic control of reservoir flood limited water level with flood forecast information can increase the floodwater utilization rate without increasing flood control risk effectively and it is feasible in practice. 展开更多
关键词 flood forecast error flood control forecast operation mode dynamic control of flood limited water level risk analysis Dahuofang Reservoir
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Control and Transfer of Entanglement between Two Atoms Driven by Classical Fields under Dressed-State Representation
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作者 廖庆洪 张旗 +3 位作者 许娟 鄢秋荣 刘晔 陈桉 《Communications in Theoretical Physics》 SCIE CAS CSCD 2016年第6期684-690,共7页
We have studied the dynamics and transfer of the entanglement of the two identical atoms simultaneously interacting with vacuum field by employing the dressed-state representation. The two atoms are driven by classica... We have studied the dynamics and transfer of the entanglement of the two identical atoms simultaneously interacting with vacuum field by employing the dressed-state representation. The two atoms are driven by classical fields. The influence of the initial entanglement degree of two atoms, the coupling strength between the atom and the classical field and the detuning between the atomic transition frequency and the frequency of classical field on the entanglement and atomic linear entropy is discussed. The initial entanglement of the two atoms can be transferred into the entanglement between the atom and cavity field when the dissipation is neglected. The maximally entangled state between the atoms and cavity field can be obtained under some certain conditions. The time of disentanglement of two atoms can be controlled and manipulated by adjusting the detuning and classical driving fields. Moreover, the larger the cavity decay rate is, the more quickly the entanglement of the two atoms decays. 展开更多
关键词 concurrence entanglement dynamics classical field
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