Abstract: A signal processing system and method for a radiation detector based on a metal oxide semiconductor (MOS) transistor are disclosed. The signal processing system includes a power supply generation module, an analog signal processing module, and a digital signal acquiring-processing module. The power supply generation module provides a novel power supply method, and converts a positive high voltage power supply into a negative high voltage power supply to supply power to a last dynode of a photomultiplier tube (PMT). The analog signal processing module converts a negative current pulse signal into a voltage difference signal. The digital signal acquiring-processing module acquires a signal of the analog signal processing module, and converts the signal into a digital signal for identification.

Abstract: Automatic remove equipment for disaster blooming marine organisms of sea water intake channel belongs to the field of marine environmental engineering and equipment. The equipment comprises a cod-end of collecting net, a saw blade at the end of net, a fixation and support system, a submersible spiral pump, a transport pipe system, a separating system on coast and floats. The equipment collects the disaster blooming marine organisms in the sea water channel into the bottom of a cod-end of collecting net, and cuts and decomposes the collected disaster blooming marine organisms by using a saw blade at the end of net under the combined action of the water flow power and the suction pressure of a submersible spiral pump. Fragments after cutting are sucked by the submersible spiral pump and delivered to a coast, and are subjected to solid-liquid separation by a separating system on coast and then are centrally disposed.

Abstract: Provided are Ti(C,N)-based cermets with Ni3Al and Ni as binder and a preparation method thereof. The Ti(C,N)-based cermets are prepared by raw materials subjected to ball-mill mixing, die forming, vacuum degreasing and vacuum sintering, wherein weight percentage of each chemical component of the raw materials is as follows: TiC 34.2˜43%, TiN 8˜15%, Mo 10˜15%, WC 5˜10%, graphite 0.8˜1.0%, Ni 20˜24%, and Ni3Al powder containing B 6˜10%. Ni powder and Ni3Al powder containing B are used as binder. The Ti(C,N)-based cermets feature in excellent corrosion resistance, oxidation resistance and mechanical properties at high temperature, has a hardness of 89.0˜91.9 HRA, a room temperature bending strength of 1600 MPa or more, and a fracture toughness of 14 MPa·m1/2 or more, and is applicable for manufacturing high-speed cutting tools, dies and heat-resisting and corrosion-resisting components.

Abstract: Provided are Ti(C,N)-based cermets with Ni3Al and Ni as binder and a preparation method thereof. The Ti(C,N)-based cermets are prepared by raw materials subjected to ball-mill mixing, die forming, vacuum degreasing and vacuum sintering, wherein weight percentage of each chemical component of the raw materials is as follows: TiC 34.2˜43%, TiN 8˜15%, Mo 10˜15%, WC 5˜10%, graphite 0.8˜1.0%, Ni 20˜24%, and Ni3Al powder containing B 6˜10%. Ni powder and Ni3Al powder containing B are used as binder. The Ti(C,N)-based cermets feature in excellent corrosion resistance, oxidation resistance and mechanical properties at high temperature, has a hardness of 89.0˜91.9 HRA, a room temperature bending strength of 1600 MPa or more, and a fracture toughness of 14 MPa·m1/2 or more, and is applicable for manufacturing high-speed cutting tools, dies and heat-resisting and corrosion-resisting components.

Abstract: A method for producing synthesis gas, including: 1) pre-treating a biomass raw material; 2) carrying out low-temperature carbonization to obtain pyrolysis gas and charcoal, cooling the charcoal at an outlet of an carbonization furnace, and conveying the cooled charcoal to a charcoal storage bin; 3) separating the pyrolysis gas from charcoal powder; 4) delivering part of a separated pyrolysis gas to a combustion bed for combustion, heating the other part of the separated pyrolysis gas, and delivering a heated pyrolysis gas to the carbonization furnace; delivering a waste hot flue gas after heat exchange to a pretreatment part for the biomass raw material for drying; conveying the separated charcoal powder to the charcoal storage bin; 5) milling the charcoal powder to prepare a charcoal slurry; and 6) using high-pressure charcoal slurry pump, introducing the charcoal slurry to a gasification furnace for gasification.

Abstract: The invention is relates to a method and a system for producing synthetic gas from biomass by high temperature gasification, including: feeding raw material, carbonizing, pulverizing the charcoal, and transporting charcoal powder to the gasification furnace for gasification. A heat source for the carbonizing is achieved by a direct combustion reaction between external combustible gas and external oxygen in a carbonization furnace. The heat emitted from the reaction being directly provided to the necessary heat of biomass pyrolysis, and yielding pyrolysis gas and charcoal from carbonization furnace. The temperature of carbonization furnace is controlled at between 400° C. and 600° C. by adjusting the amount of oxygen. The temperature of a burner nozzle of the carbonization furnace is controlled at between 1200° C. and 1800° C. by adjusting the input amount of the external combustible gas at between more than 1 and less than 5 times that required for a complete combustion with the external oxygen.

Abstract: The invention is relates to a method and a system for producing synthetic gas from biomass by high temperature gasification, including: feeding raw material, carbonizing, pulverizing the charcoal, and transporting charcoal powder to the gasification furnace for gasification. A heat source for the carbonizing is achieved by a direct combustion reaction between external combustible gas and external oxygen in a carbonization furnace. The heat emitted from the reaction being directly provided to the necessary heat of biomass pyrolysis, and yielding pyrolysis gas and charcoal from carbonization furnace. The temperature of carbonization furnace is controlled at between 400° C. and 600° C. by adjusting the amount of oxygen. The temperature of a burner nozzle of the carbonization furnace is controlled at between 1200° C. and 1800° C. by adjusting the input amount of the external combustible gas at between more than 1 and less than 5 times that required for a complete combustion with the external oxygen.