Abstract: A system and method for providing dry cooling of a source liquid, having a plurality of heat exchangers which depolymerize and polymerize a polymer. Specifically, the depolymerization process is endothermic and draws heat from a source liquid in a first heat exchanger, and the polymerization process is exothermic and expels heat from a second heat exchanger. Additional heat exchangers and holding tanks may be incorporated in the system and method. In some embodiments the system further provides additional cooling of the polymer prior to depolymerization using cooler night ambient air.

Abstract: A system and method for providing dry cooling of a source liquid, having a plurality of heat exchangers which depolymerize and polymerize a polymer. Specifically, the depolymerization process is endothermic and draws heat from a source liquid in a first heat exchanger, and the polymerization process is exothermic and expels heat from a second heat exchanger. Additional heat exchangers and holding tanks may be incorporated in the system and method. In some embodiments the system further provides additional cooling of the polymer prior to depolymerization using cooler night ambient air.

Abstract: A method and system for implementing a high availability and high performance database cluster are disclosed. The method comprises: installing a distributed block device replication software, a high availability cluster component, and a dependent package of database multi-master software on a host and a backup machine; building a distributed block device replication software environment in the cluster for synchronizing data of the backup machine with the host; building a high availability cluster component environment in the cluster; building a database multi-master environment among nodes of the host, the backup machine and a slave; and defining a resource on the host and the backup machine so that the host and the backup machine are switchable to each other and the slave can access database services provided by the host and the backup machine to provide uninterrupted database cluster services.

Abstract: The invention discloses a method for achieving the monitoring option script of MySQL database, comprising the following steps: writing a shell monitoring script; uploading and configuring the shell monitoring script; modifying the execution authority of the shell monitoring script; executing the shell monitoring script; and examining the operation results of the shell monitoring script, and saving or downloading the operation results of the shell monitoring script. The invention further relates to a device for implementing the method for achieving the monitoring option script of MySQL database. The method and the device thereof for achieving the monitoring option script of MySQL database of the invention have the following beneficial effects of: simple and easy installation, easy maintenance and good cross-platform portability and more versions of cross-data database.

Abstract: The present invention regards a thermally driven, environmental control unit including, in a closed fluid-flow, non-pressurized circuit, a mixing heat exchanger, a heat recovery unit, a fractionator/evaporator, and one or more condensers. The system is designed to include at least one solute and a solvent, selected so that the mixture of each solute and the solvent produce an enthalpy change of between about 5 to 30 kJ/mol for cooling and ?10 to ?200 kJ/mol for heating. A plurality of pumps are integrated into the system to move the solute and the solvent, and a mixture thereof, among the various components of the present invention. The unit further includes a liquid loop coupled with the mixing heat exchanger and an air handler to provide warm or cool supply air.