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公开(公告)号：US20100070784A1
公开(公告)日：2010-03-18
申请号：US12557284
申请日：2009-09-10
申请人： Alok Kumar GUPTA , Minwen JI , Timothy P. MANN , Tahir MOBASHIR , Umit RENCUZOGULLARI , Ganesha SHANMUGANATHAN , Limin WANG , Anne Marie HOLLER
发明人： Alok Kumar GUPTA , Minwen JI , Timothy P. MANN , Tahir MOBASHIR , Umit RENCUZOGULLARI , Ganesha SHANMUGANATHAN , Limin WANG , Anne Marie HOLLER
IPC分类号： G06F1/32
CPC分类号： G06F1/3287 , G06F1/3203 , G06F9/5094 , H04L43/04 , H04L43/0876 , Y02D10/17 , Y02D10/171 , Y02D10/22 , Y02D50/20
摘要： A method of reducing power consumption of a server cluster of host systems with virtual machines executing on the host systems is disclosed. The method includes recommending host system power-on when there is a host system whose utilization is above a target utilization, and recommending host system power-off when there is a host system whose utilization is below the target utilization. Recommending host system power-on includes calculating impact of powering on a standby host system with respect to reducing the number of highly-utilized host systems in the server cluster. The impact of powering on is calculated by simulating moving some virtual machines from highly utilized host systems to the standby host system being recommended to be powered on. Recommending host system power-off includes calculating impact of powering off a host system with respect to decreasing the number of less-utilized host systems in the server cluster. The impact of powering off is calculated by simulating moving all virtual machines from the host system, which is being recommended to be powered-off, to less-utilized host systems.
摘要翻译： 公开了一种使用在主机系统上执行的虚拟机来降低主机系统的服务器集群的功耗的方法。 该方法包括当存在利用率高于目标利用率的主机系统时建议主机系统上电，并且当存在利用率低于目标利用率的主机系统时推荐主机系统断电。 推荐的主机系统开机包括计算对备用主机系统的上电影响，以减少服务器集群中高度利用的主机系统的数量。 通过模拟将一些虚拟机从高度利用的主机系统移动到被推荐启动的备用主机系统来计算上电的影响。 建议主机系统关机包括计算关闭主机系统的影响，以减少服务器集群中较少使用的主机系统的数量。 关闭电源的影响是通过模拟将主机系统中的所有虚拟机（被推荐关闭）移动到较少使用的主机系统来计算的。
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公开(公告)号：US20210039112A1
公开(公告)日：2021-02-11
申请号：US17045198
申请日：2019-03-04
摘要： The present disclosure envisages an air purification system. The system includes a shell, a blower, an electrode and a plurality of spikes. The shell has electrically-grounded wall(s), an inlet, and an outlet. The blower generates flow of air through the shell. The electrode is fitted within the shell between the inlet and the outlet and is electrically isolated from the shell body. The spikes extend from the electrode. The spikes have tips spaced apart from the inner surfaces of the walls and generate a corona between the tips and the inner surface of the walls when an high voltage electric current is passed through the electrode and thereby ionize gases and charge particles present in the air resulting in the particles being deposited on the inner surface of the walls of the shell.
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