摘要:
The present invention provides a magnetic refrigerant bed, which is a column composed of n magnetic refrigerant bed components, and these n magnetic refrigerant bed components are arranged in a descending order according to Curie temperatures or phase transition temperatures of the magnetic refrigeration materials used, wherein n=1-1000. The magnetic refrigerant bed components are flat sheets (1), straight wave-shaped sheets (2) or zigzag wave-shaped sheets (3) which can easily form a magnetic refrigerant bed with high specific surface area and flow channels of low resistance. And a method for manufacturing a magnetic refrigerant bed is also provided, which comprises the following steps: preparing magnetic refrigeration powder materials with Curie temperatures or phase transition temperatures in the operating temperature range of a magnetic refrigerator; and immersing the magnetic refrigeration powder materials into binder respectively; then loading the mixture into molds respectively and pressing the mixture into sheet magnetic refrigerant bed components; then arranging and assembling the obtained components in a descending order according to Curie temperatures or phase transition temperatures of the used magnetic refrigeration materials to obtain a columnar magnetic refrigerant bed. The magnetic refrigerant bed has advantages of large heat transfer specific surface area and small flow resistance of the refrigerant.
摘要翻译:本发明提供一种由n个磁性制冷剂床组分构成的柱的磁性制冷剂床,并且这些n个磁性制冷剂床组分按照所使用的磁性制冷材料的居里温度或相变温度按降序排列,其中 n = 1-1000。 磁性制冷剂床部件是能够容易地形成具有高比表面积的磁性制冷剂床和低阻力的流动通道的平板(1),直波形片(2)或之字形波片(3)。 还提供了一种用于制造磁性制冷剂床的方法,包括以下步骤:在磁性冰箱的工作温度范围内制备具有居里温度或相变温度的磁性制冷粉末材料; 并将磁性制冷粉末材料分别浸入粘合剂中; 然后分别将混合物装入模具中并将混合物压制成片状制冷剂床组分; 然后根据所使用的磁性制冷材料的居里温度或相变温度按降序布置和组装所获得的部件,以获得柱状磁性制冷剂床。 磁性制冷剂床具有传热比表面积大,制冷剂流动阻力小的优点。
摘要:
The present invention provides a refrigeration method combining magnetic refrigeration and gas-based regenerative refrigeration, the method comprises: replacing part of or all of regenerators (2) in a gas-based regenerative refrigerator with magnetic regenerators (2), wherein part of or all of fillers in the magnetic regenerators (2) are magnetic refrigeration materials to form magnetic regenerators (2) with the same operating temperature ranges as that of the corresponding regenerators in the gas-based regenerative refrigerator; disposing the magnetic regenerators (2) respectively in magnet assemblies (4) for generating controllable and periodically-changing field strength, and performing coupling control on working sequence of the gas-base regenerative regenerator and magnetic field changing sequence of the magnet assemblies to realize combination of magnetic refrigeration and gas-based regenerative refrigeration. And an apparatus combining magnetic refrigeration and gas-based regenerative refrigeration is also provided, which comprises: a pressure wave generator (1), m regenerators (2), m phase difference adjusting mechanism (3), j magnet assemblies (4) for generating controllable and changeable field strength and a coupling control system (5), wherein m is an integer between 1 and 5, and j
摘要:
Refrigerant mixtures used in the lower temperature stage of two-stage cascade refrigeration systems and obtained by physical mixing of ethane, hexafluoroethane, or/and trifluoromethane. One of the refrigerant mixtures comprises ethane and hexafluoroethane. Another refrigerant mixture comprises ethane and trifluoromethane. Yet another one of the refrigerant mixtures comprises ethane, hexafluoroethane, and trifluoromethane.
摘要:
A laser stabilization system includes laser source having first and second ends; first waveguide portion having first and second ends, first end of first waveguide portion coupled to first end of laser source; second waveguide portion having first and second ends, first end of second waveguide portion coupled to second end of laser source; micro-cavity coupled between second end of first waveguide portion and second end of second waveguide portion, micro-cavity having resonant frequency; and electronic locking loop coupled between micro-cavity and laser source, wherein electronic locking loop electronically locks laser source to resonant frequency of micro-cavity; wherein first waveguide portion is optical locking loop coupled between micro-cavity and laser source, wherein optical locking loop optically locks laser source to resonant frequency of micro-cavity; micro-cavity stabilization loop coupled with micro-cavity, wherein micro-cavity stabilization loop stabilizes resonant frequency of micro-cavity to reference frequency; and output for outputting light from system.
摘要:
The present invention discloses a base station system, including an indoor part and a remote RF subsystem (RRS). The indoor part includes a RIU, a CCU, a BBU, a GPSU and a local interface unit. The RRS includes a remote interface unit, a RF transceiver unit (TRU) and an antenna. The local interface unit and the remote interface unit are for signal intercommunicating between the indoor part of the base station and the RSS. The TRU is a RF transceiver module of the conventional RFU, for amplifying an analog RF signal from the remote interface unit and transmitting the signal to the antenna. By flexibly selecting between an optical cable and an If cable, the interface unit of the present invention provides a digital baseband remote manner and an IF remote manner. According to the structure of the base station of the present invention, the number of the base station sites and the network operating cost decreases; on the other side, since one base station may cover a cell by smart antenna with only one optical cable or IF cable, the difficulty in mounting is reduced.
摘要:
Compositions and methods are provided for the diagnosis and treatment of inflammation and autoimmune disorders, such as psoriasis. Compositions and methods for modulating IL-23 or IL-22 signaling are provided.
摘要:
An application platform of mobile video-messaging provides a standardized and automated process for building customized applications on independent deployed platforms across various industry verticals including sport, entertainment, tourism, health, safety, education, business, and politics. The branding application platform may be used to create a plurality of different types of applications of different categories, based on needs and wants defined by an operating entity.
摘要:
An application platform of mobile video-messaging provides a standardized and automated process for building customized applications on independent deployed platforms across various industry verticals including sport, entertainment, tourism, health, safety, education, business, and politics. The branding application platform may be used to create a plurality of different types of applications of different categories, based on needs and wants defined by an operating entity.
摘要:
A mobile video-messaging platform allows an entity to perform a live broadcast of audio, video and/or text content. The mobile video-messaging platform may undergo branding and be released from a single business entity. Advertisement display is optimized based on placement strategy to ensure maximum revenue without compromising overall user experience. Virtual gifts are awarded to users viewing broadcast content. Premium live broadcasts require prospective viewers to pay in-app credit to view live broadcast content. Multiple virtual payment systems within the platform are provided. Using location-based features, viewers may pinpoint where nearby users and broadcasters are located. Gamification of the video-messaging platform encourages user involvement with the application.
摘要:
An optical-fiber filter system to narrow a linewidth and to reduce noise fluctuations of an optical beam is provided. The optical-fiber filter system includes an optical fiber having a first end-face and an opposing second end-face, the first end-face and the second end-face setting a fiber length; a fiber Bragg grating having a first reflectivity positioned at the first end-face; and a reflector having a second reflectivity positioned at the second end-face. When the optical beam at a first frequency is coupled from a laser into one of the first end-face or the second end-face, a resonant cavity is established at the first frequency between the fiber Bragg grating and the reflector while Brillouin scattered light shifted from the first frequency within the optical fiber is transmitted through the fiber Bragg grating.