Abstract: A light source system, comprising: a wavelength conversion layer (102, 202) used for receiving exciting light (L3) and generating excited light (L2); a transparent thermal conduction substrate (104, 204) used for supporting the wavelength conversion layer (102, 202), and an excitation light source which emits the exciting light (L3) from a side of the wavelength conversion layer (102, 202) to the wavelength conversion layer (102, 202); and a red light source which emits red light (L1) from a side of the transparent thermal conduction substrate (104, 204) to the wavelength conversion layer (102, 202). The light source system can effectively solve the problem of insufficient red light in fluorescent powder excitation technology.

Abstract: A light source system, comprising: a wavelength conversion layer (102, 202) used for receiving exciting light (L3) and generating excited light (L2); a transparent thermal conduction substrate (104, 204) used for supporting the wavelength conversion layer (102, 202), and an excitation light source which emits the exciting light (L3) from a side of the wavelength conversion layer (102, 202) to the wavelength conversion layer (102, 202); and a red light source which emits red light (L1) from a side of the transparent thermal conduction substrate (104, 204) to the wavelength conversion layer (102, 202). The light source system can effectively solve the problem of insufficient red light in fluorescent powder excitation technology.

Abstract: A light source system, comprising: a wavelength conversion layer (102, 202) used for receiving exciting light (L3) and generating excited light (L2); a transparent thermal conduction substrate (104, 204) used for supporting the wavelength conversion layer (102, 202), and an excitation light source which emits the exciting light (L3) from a side of the wavelength conversion layer (102, 202) to the wavelength conversion layer (102, 202); and a red light source which emits red light (L1) from a side of the transparent thermal conduction substrate (104, 204) to the wavelength conversion layer (102, 202). The light source system can effectively solve the problem of insufficient red light in fluorescent powder excitation technology.

Abstract: A light source system, comprising: a wavelength conversion layer (102, 202) used for receiving exciting light (L3) and generating excited light (L2); a transparent thermal conduction substrate (104, 204) used for supporting the wavelength conversion layer (102, 202), and an excitation light source which emits the exciting light (L3) from a side of the wavelength conversion layer (102, 202) to the wavelength conversion layer (102, 202); and a red light source which emits red light (L1) from a side of the transparent thermal conduction substrate (104, 204) to the wavelength conversion layer (102, 202). The light source system can effectively solve the problem of insufficient red light in fluorescent powder excitation technology.

Abstract: A negative pressure updraught pouring device and method are provided. A melting furnace has a top end covered by a flat plate with a suction pipe that has a bottom end dipped into the molten steel in the melting furnace. A mold is placed on the flat plate and the mold's flow path system is connected with the suction pipe. A chamber is covered on the mold and the flat plate, and the air inside the chamber is drawn out to reduce the air pressure inside the chamber and the mold cavity. When the mold cavity is filled with molten steel, a driving assembly is used to move a blocker to substantially block the flow of the molten steel in the flow path system. The negative air pressure is relieved to flow the molten steel inside the flow path system back into the melting furnace.

Abstract: A porcine circovirus type-2 (PCV2) immunogenic composition includes an antigenic peptide. The antigenic peptide is a non-arginine-rich peptide of a PCV2 open reading frame 2 (ORF2) and/or a recombinant fusion protein having the non-arginine-rich peptide of the PCV2 ORF2, a PE peptide, and a KDEL signal peptide. The number of arginines of the non-arginine-rich peptide of the PCV2 ORF2 is not greater than half of the number of arginines of the arginine-rich domain of the N terminal of the PCV2 ORF2.

Abstract: A negative pressure updraught pouring method is provided, wherein a melting furnace is filled with molten steel and a flat plate with a suction pipe is covered on a top end of the melting furnace with the bottom end of the suction pipe is dipped into the molten steel; a ventilated mold is placed on the flat plate such that a flow path system of the mold is connected with a top end of the suction pipe; and a chamber is covered on the mold and the flat plate, and the air inside the chamber is drawn out to reduce the air pressure inside the chamber and a cavity of the mold, thereby the molten steel inside the melting furnace is sucked into the mold cavity through the suction pipe and the flow path system by the negative pressure formed inside the chamber for forming a cast.

Abstract: A procine circovirus type-2 (PCV2) immunogenic composition includes an antigenic peptide. The antigenic peptide is a non-arginine-rich peptide of a PCV2 open reading frame 2 (ORF2) and/or a recombinant fusion protein having the non-arginine-rich peptide of the PCV2 ORF2, a PE peptide, and a KDEL signal peptide. The number of arginines of the non-arginine-rich peptide of the PCV2 ORF2 is not greater than half of the number of arginines of the arginine-rich domain of the N terminal of the PCV2 ORF2.