摘要:
Refrigerant is circulated through a vapor compression system including a compressor, a gas cooler, an expansion device, and an evaporator. An auxiliary electric heater is activated to further heat the heated water exiting the gas cooler when the heating capacity of the system is low. The auxiliary electric heater can be located on the water line exiting the gas cooler, in a water tank that stores the heated water, or on the refrigerant line proximate to the compressor discharge.
摘要:
The efficiency of a vapor compression system is increased by coupling the evaporator with either the intercooler of a two-stage vapor compression system or the compressor component. The refrigerant in the evaporator accepts heat from the compressor component or the refrigerant in the intercooler, heating the evaporator refrigerant. As pressure is directly related temperature, the low side pressure of the system increases, decreasing compressor work and increasing system efficiency. Additionally, as the heat from the compressor component or from the refrigerant in the intercooler is rejected to the refrigerant in the evaporator, the compressor is cooled, increasing the density and the mass flow rate of the refrigerant to further increase system efficiency.
摘要:
Provided is a recombinant yeast expressing germacrene A synthetase or a fusion protein thereof, wherein the fusion protein is germacrene A synthetase and farnesyl pyrophosphate synthase. The recombinant yeast improves the yield of germacrene A, and is suitable for the industrialized production of β-elemene and/or germacrene A.
摘要:
A method comprises controlling a mobile device comprising one or more wireless interfaces, one or more applications that require the mobile device to communicate wirelessly, and a database, to perform measuring power consumption during wireless communication in each of a plurality of circumstances in which one or more conditions are present for plural combinations of the one or more applications, and the one or more wireless interfaces and/or available access points, for each measurement of power consumption, recording in the database the measured power consumption (4.5) along with: information on the associated one or more conditions, and indicators identifying the one of the one or more applications and the one of the one or more wireless interfaces and/or access points (4.1), detecting a requirement of a first one of the one or more applications for wireless communication (4.2), utilising the database and information on current conditions to identify the wireless interface and/or access point that might be expected to cause the lowest power consumption (4.3), and using the identified interface and/or access point to allow the first application to communicate wirelessly (4.4).
摘要:
A method for transmitting data between first and second nodes in a network comprises (a) the first node sending a start packet to the second node, (b) the first node starting a first counter concurrently with sending the start packet, wherein the first counter starts counting, (c) the second node starting a timer in response to the start packet, (d) the second node starting a second counter in response to the timer running for a predetermined delay time, wherein the second counter starts counting, (e) the first node stopping the first counter and sending a stop packet in response to the first node determining that the number of accumulated first counts corresponds to the data (thereby transmitting the data solely as a time interval between the start and stop packets), the second node stopping the second counter in response to the stop packet (and receiving the transmitted data).
摘要:
A method for transmitting data between first and second nodes in a network comprises (a) the first node sending a start packet to the second node, (b) the first node starting a first counter concurrently with sending the start packet, wherein the first counter starts counting, (c) the second node starting a timer in response to the start packet, (d) the second node starting a second counter in response to the timer running for a predetermined delay time, wherein the second counter starts counting, (e) the first node stopping the first counter and sending a stop packet in response to the first node determining that the number of accumulated first counts corresponds to the data (thereby transmitting the data solely as a time interval between the start and stop packets), the second node stopping the second counter in response to the stop packet (and receiving the transmitted data).
摘要:
A water heater is provided by a refrigerant cycle, in which the gas cooler is utilized to heat the water. A drain is incorporated into a water circuit for draining all of the water outwardly of the circuit when the system is shut down. In a preferred embodiment, a water outlet of the gas cooler is at the vertically lowermost portion of the water circuit. A drain valve is placed in this vertically lowermost location such that the water can be easily drained.
摘要:
Refrigerant is circulated through a vapor compression system including a compressor, a gas cooler, an expansion device, and an evaporator. An auxiliary electric heater is activated to further heat the heated water exiting the gas cooler when the heating capacity of the system is low. The auxiliary electric heater can be located on the water line exiting the gas cooler, in a water tank that stores the heated water, or on the refrigerant line proximate to the compressor discharge.
摘要:
A method comprises controlling a mobile device comprising one or more wireless interfaces, one or more applications that require the mobile device to communicate wirelessly, and a database, to perform measuring power consumption during wireless communication in each of a plurality of circumstances in which one or more conditions are present for plural combinations of the one or more applications, and the one or more wireless interfaces and/or available access points, for each measurement of power consumption, recording in the database the measured power consumption (4.5) along with: information on the associated one or more conditions, and indicators identifying the one of the one or more applications and the one of the one or more wireless interfaces and/or access points (4.1), detecting a requirement of a first one of the one or more applications for wireless communication (4.2), utilizing the database and information on current conditions to identify the wireless interface and/or access point that might be expected to cause the lowest power consumption (4.3), and using the identified interface and/or access point to allow the first application to communicate wirelessly (4.4).
摘要:
A variable nozzle system can comprise a gas inlet ring, an opposing gas outlet ring, an actuation ring, guides, and vanes circumferentially spaced about and disposed between the gas inlet ring and the gas outlet ring. The gas inlet ring, the gas outlet ring, and the vanes can form nozzles, the nozzles being variable by rotation of the vanes about a pivot axis. The plurality of guides can extend from the gas inlet ring, the gas outlet ring, or the actuation ring, and the vanes can be connected to the actuation ring, so that each vane can be rotated by rotation of the actuation ring and by sliding against a respective guide from the plurality of guides. The actuation ring can have a gear rack and can be rotated by rotatable engagement of the gear rack with a pinion attached to the end of a rotatable gear shaft.