Abstract: A novel polyvalent attenuated live bacterial vaccine for preventing and curing vibriosis of cultivated fish is provided. The vaccine mainly comprises attenuated deletion strain of Vibrio anguillarum without marker gene, which has significant low toxicity, but remains immunogenicity against wild type strain of V. anguillarum, as compared with wild type strain MVM425. Moreover, the vaccine strain has excellent cross immunoprotection against Vibrio alginolyticus. The attenuated live vaccine made from the vaccine strain is effective to prevent and cure vibriosis of fish resulted from wild type strain of V. anguillarum and V. alginolyticus.

Abstract: A two-stage gasification apparatus coupled with heat recovery and washing includes a columnar shell (7), an entrained flow gasification chamber (1), a fixed bed gasification chamber (18), a waste heat boiler (19) and a gas cooling-washing chamber (14) set coaxially from top to bottom inside the columnar shell (7). Process nozzle chambers (3) are set at a sidewall and/or a top of the entrained flow gasification chamber (1), and process nozzles (2) are set in a nozzle chambers (3). A feed-in lock hopper (25) is set and a fixed bed gasification chamber (18). An eccentric grate (10) is set in the middle of a lower part of the fixed bed gasification chamber (18), and the grate is connected with an ash-pan (11), which is conjoined with a motor (36) via transmission mechanism. An inverse cone (22) is erected at an upper part of a cooling-washing chamber (14).

Abstract: A close coupled three-way catalyst for purification of exhaust gas of motor vehicle and the preparation thereof. The support is selected from cordierite honeycomb ceramic materials having a pore volume of 0.25-0.35 ml/g. The coating layer is the mixture of hexaaluminate and perovskite-type composite oxide, cerium-zirconium solid solution, rare-earth oxide and alumina, alkali-earth oxide and zeolite having a high Si/Al ratio. The active components are palladium-rhodium, rare-earth oxide and transition metal in the hexaaluminate and perovskite-type composite oxide. The catalyst has not only the function of low-temperature catalytic oxidation of hydrocarbons, but also the function of reduction of nitrogen oxides, and can be used for purifying the exhaust gas of motor vehicles using gasoline, liquid gas, or CNG as fuel.

Abstract: The present invention discloses nitromethylene derivatives and the uses thereof. These derivatives are obtained by adding ring structure onto the known nitromethylene compounds, by which both their stability for light and their liposolubility are increased. Furthermore, by using the substituents linked to ether bond, the steric orientation of the nitro group and the liposolubility of the compounds are controlled. The insecticidal activity tests show that the compounds and their derivatives of the invention display high efficiency on killing various destructive insects with piercing-sucking type or scratching type mouthparts, such as aphid, leafhopper, plant hopper, thrips and white fly.

Abstract: The invention disclosed a novel mesoporous silica-based xerogel and its use in hemorrhage control. The mesoporous silica-based xerogel material has tunable mesopores (1-50 nm), high specific surface area (100-1400 m2/g), macroscopical morphology (powder, film, disc, column, etc.) and adjustable compositions (SiO2, CaO and P2O5, etc.) as well as good biodegradation. The mesoporous silica-based xerogels herein effectively promote the blood clotting under various conditions including slow and severe hemorrhage, even at the blood oozing site of bone defect. Meanwhile, the networks of silica-based xerogel with good elastic and mechanic properties, formed by adsorbing a large amount of water, can modulate the cell behavior and tissue growth, and thus promote the wound healing. Additionally, due to the mesoporous structure, the materials have the potential to load drug, thrombin and bioactive factors, which is favorable for the therapeutical efficacy.

Abstract: The present invention discloses a control technology for brushless DC motor, in which firstly it is to build or import a motor running parameters' database, then detect the signals always running and the signals closely relevant to the rotor's rotating state such as the voltage and the current, and process these signals and figure out the signals about the rotor's position. Wherein these detected signals should be filtered before being used, and the best filter is the low-pass filter to cut out the high frequency components, and the cut-off frequency of the low-pass filter are determined by the motor running voltage U and PWM signal width when the motor is running at no load, finally determine if the motor is working properly by means of the motor running parameters stored in the database in advance, that is to determine if the detected value is identical with the one predicted from the database.

Abstract: The invention discloses novel sulfur-containing naphthalimide derivatives, and the preparation and uses thereof. The conjugated plane of naphthalimide derivatives of the invention is enlarged by incorporating 5-or 6-membered heteroaromatic ring and/or introducing S heteroatom, thus increasing the anti-tumor activity of naphthalimide. The compounds of the invention displays significant inhibiting activities to the proliferation of various tumor cells such as human lung cancer, gastric cancer, liver cancer, leucocythemia and the like. The inhibition of cell proliferation is dose-dependent.

Abstract: The present invention discloses a control technology for brushless DC motor, in which firstly it is to build or import a motor running parameters' database, then detect the signals always running and the signals closely relevant to the rotor's rotating state such as the voltage and the current, and process these signals and figure out the signals about the rotor's position. Wherein these detected signals should be filtered before being used, and the best filter is the low-pass filter to cut out the high frequency components, and the cut-off frequency of the low-pass filter are determined by the motor running voltage U and PWM signal width when the motor is running at no load, finally determine if the motor is working properly by means of the motor running parameters stored in the database in advance, that is to determine if the detected value is identical with the one predicted from the database.

Abstract: The present invention falls within the field of purifying oil-laden wastewater, which provides a method for purifying coke-cooling wastewater in a delayed coking process in petroleum chemical field. The method comprises the following steps: (a) cooling the coke-cooling wastewater produced in a delayed coking process to 5-55° C. under 0.1-0.25 MPa absolute pressure, to obtain cooled coke-cooling wastewater; (b) subjecting the cooled coke-cooling wastewater to solid-liquid separation, to obtain a coke breeze phase and a liquid phase; (c) further separating the obtained liquid phase, to obtain an oil phase and a water phase; and (d) further discharging water from the obtained oil phase, to obtain the separated oil phase. The present invention also provides an equipment for carrying out the method.

Abstract: The present invention belongs to the field of polymerization and processing of polymer and relates to the preparation of a kind of functional polyolefin master batch. The functional master batch is produced by liquid phase, melt phase, or solid phase reaction after mixing the polyolefin resin, polyamine and guanidine salt oligomer, olefin monomer and initiator. The molecular structure of functional polyolefin master batch is shown below: wherein R is a polyamine and guanidine salt oligomer bonded onto polyolefin molecular chain by covalence bond, while S is one selected from hydrogen, chlorine, methyl, or phenyl group. Blending mentioned functional master batch with the corresponding polyolefin, the various antimicrobe products, such as fibers, film, pipe and other plastic articles can be obtained. Besides endowing products with excellent permanent antimicrobe property, it also provides fibers with good-dyeable and antistatic ability and bumpers with easy-paintable ability.

Abstract: The present invention discloses an inorganic bone adhesive and its use in human hard tissue repairs. The inorganic bone adhesive comprises basic compound, phosphate, calcium phosphate bone cement and retarder with the characteristics of rapid hydration rate and high early strength. Inorganic Bone adhesive can be widely used in the artificial joints fixation, screw fixation as well as comminuted fracture fixation. It is a kind of safe and effective adhesive material and beneficial for the fast postoperative recovery. The final hydration reaction products contains the composition of magnesium phosphate, bio-mineral containing ammonium and apatite-like materials, which has excellent biocompatibility and can be gradually absorbed by surrounding tissues after being implanted in vivo, which benefits the in-growth of the new bone.

Abstract: A catalyst for olefin polymerization having the following structural formula (I): wherein R1 is selected from the group consisting of hydrogen, C1-C12 alkyl, C1-C12 alkoxy, or C6-C12 aryl, R2 and R2′ are respectively selected from hydrogen and C1-C4 alkyl, R3 is selected from the group consisting of hydrogen, C1-C12 alkyl, C1-C12 alkoxy and C6-C12 aryl, and M is selected from Ti, Zr, and Hf The catalyst is suitable for olefin polymerization to yield polymerized products with high molecular weight and high insertion rate of comonomers.

Abstract: A cell-detaching reactor is provided to prepare single cell suspension for inoculation of anchorage-dependent cells between the scaled-up bioreactors, which is especially useful in a commercial-scale process. The cell-detaching reactor of the invention comprises a trypsinizing zone and a separating zone, which are separated by a screen with mesh size between the diameters of the cells and the carriers.