Abstract: Disclosed is a sheep PDGFD, nucleic acids encoding PDGFD and recombinant lentivirus, host cell and use thereof, which relate to the technical field of molecular cell biology. The sheep platelet-derived growth factor PDGFD includes one or two of PDGFD-T1 and PDGFD-T2. The amino acid sequence of PDGFD-T1 is set forth in SEQ ID NO:1, and the amino acid sequence of PDGFD-T2 is set forth in SEQ ID NO:2. PDGFD-T1 and PDGFD-T2 are able to significantly inhibit the differentiation and maturation of precursor adipocytes and significantly reduce the mRNA relative expression levels of adipogenic differentiation-related genes CEBP?, PPAR?, FAS, FABP4 and LPL, thereby inhibiting animal fat deposition and improving animal meat quality, and have important guiding significance in the fields of life science, medical science, animal husbandry and the like.

Abstract: The present invention provides a method a device and a system for processing parallel services, which includes: determining, by a synchronization locking server, whether a service request for locking is locked after receiving a locking request sent by a service server, and locking the service request when the service request is unlocked and returning a locking success response to the service server, or returning a locking failure response to the service server when the service request is locked, so as to ensure accuracy of a processing result of the parallel services that are processed across the cities, IDCs or servers.

Abstract: An LED display device includes an installing pillar, a first fixing plate, an enclosure module, an LED display screen module and a first connection member, the enclosure module includes a front surface for display and a rear surface opposite to the front surface, the installing pillar is positioned on the rear surface of the enclosure module, the first fixing plate closely contacts the installing pillar, the first fixing plate defines a first fixing hole, the first connection member extends through the first fixing hole from the rear surface of the enclosure module and connects with the enclosure module, thereby clamping and securing the installing pillar between the first fixing plate and the enclosure module, and the enclosure module is fixed to the installing pillar via the first fixing plate and the first connection member, the LED display screen module is assembled to the front surface of the enclosure module.

Abstract: An LED display device includes an installing pillar, a first fixing plate, an enclosure module, an LED display screen module and a first connection member, the enclosure module includes a front surface for display and a rear surface opposite to the front surface, the installing pillar is positioned on the rear surface of the enclosure module, the first fixing plate closely contacts the installing pillar, the first fixing plate defines a first fixing hole, the first connection member extends through the first fixing hole from the rear surface of the enclosure module and connects with the enclosure module, thereby clamping and securing the installing pillar between the first fixing plate and the enclosure module, and the enclosure module is fixed to the installing pillar via the first fixing plate and the first connection member, the LED display screen module is assembled to the front surface of the enclosure module.

Abstract: The present invention provides a method a device and a system for processing parallel services, which includes: determining, by a synchronization locking server, whether a service request for locking is locked after receiving a locking request sent by a service server, and locking the service request when the service request is unlocked and returning a locking success response to the service server, or returning a locking failure response to the service server when the service request is locked, so as to ensure accuracy of a processing result of the parallel services that are processed across the cities, IDCs or servers.

Abstract: Apparatus for efficiently electrolyzing water comprising an electrolysis cell and gas-liquid separating mechanism, wherein the electrolysis cell is composed of a plurality of compartments, each of which has two plate electrodes with a membrane assembly sandwiched therebetween, the plate electrodes and the membrane assembly are spaced by a concavo-convex ion net and a concavo-convex nichel net respectively so that the spacing between the two electrodes is greatly reduced.