Abstract: The present invention relates to the field of immunology and molecular virology, and in particular relates to the field of the prevention and treatment of RSV. Specifically, provided are a monoclonal antibody capable of specifically binding to a new epitope between an Ø epitope and a V epitope on a pre-F protein or a new epitope between an II epitope and a V epitope, and the use thereof in the detection, prevention and/or treatment of RSV infection and/or diseases caused by the infections.

Abstract: The invention relates to the field of oilfield development engineering, and discloses a self-growing gel dispersion active fluidity control system and a fluid channeling control method for a low-permeability-tight reservoir. The system contains 100 parts by weight of a self-growing gel dispersion and 0.15-0.6 part by weight of a surfactant, the self-growing gel dispersion is prepared by shearing and grinding nano-reinforced chromium-aldehyde double-group cross-linked integral gel, and the preparation method of the nano-reinforced chromium-aldehyde double-group cross-linked integral gel comprises the following steps: adding a functional polymer, a phenolic resin cross-linking agent, are organic chromium cross-linking agent and a nano-reinforcer into water, mixing, and curing.

Abstract: The invention relates to the field of oilfield development engineering, and discloses a self-growing gel dispersion active fluidity control system and a fluid channeling control method for a low-permeability-tight reservoir. The system contains 100 parts by weight of a self-growing gel dispersion and 0.15-0.6 part by weight of a surfactant, the self-growing gel dispersion is prepared by shearing and grinding nano-reinforced chromium-aldehyde double-group cross-linked integral gel, and the preparation method of the nano-reinforced chromium-aldehyde double-group cross-linked integral gel comprises the following steps: adding a functional polymer, a phenolic resin cross-linking agent, are organic chromium cross-linking agent and a nano-reinforcer into water, mixing, and curing.

Abstract: A computer implemented method and associated computer system for dialogue parsing. The method includes receiving dialogue transcript data, pre-processing dialogue transcript data to generate pre-processed dialogue transcript data, providing pre-processed dialogue transcript data as an input to a trained deep growing neural gas neural network; and receiving parsed dialogue transcript data as an output from the trained deep growing neural gas neural network.

Abstract: A mussel bionic gel composition includes: a mussel bionic copolymer and/or a mussel bionic compound, a cross-linking agent and water, wherein the mussel bionic copolymer includes a structural unit A from a vinyl monomer and a structural unit B from a vinyl-containing mussel bionic catechol group monomer; and the mussel bionic compound includes polyacrylamide and a mussel bionic catechol compound. The self-growth gel particle profile control and water plugging agent prepared from the composition is low in initial apparent viscosity, easy to inject and far in migration, has good shear repairing performance and is particularly applicable to a low-permeability fractured reservoir, thereby adjusting a micro-fracture network, improving a fracture channel and increasing waterflood efficiency and recovery efficiency.

Abstract: A mussel bionic gel composition includes: a mussel bionic copolymer and/or a mussel bionic compound, a cross-linking agent and water, wherein the mussel bionic copolymer includes a structural unit A from a vinyl monomer and a structural unit B from a vinyl-containing mussel bionic catechol group monomer; and the mussel bionic compound includes polyacrylamide and a mussel bionic catechol compound. The self-growth gel particle profile control and water plugging agent prepared from the composition is low in initial apparent viscosity, easy to inject and far in migration, has good shear repairing performance and is particularly applicable to a low-permeability fractured reservoir, thereby adjusting a micro-fracture network, improving a fracture channel and increasing waterflood efficiency and recovery efficiency.

Abstract: Provided are a method for inactivating respiratory syncytial virus (RSV) and stabilizing pre-F protein in RSV and inactivated RSV virus obtained thereby. Also provided are a vaccine comprising the inactivated RSV virus and a use of the vaccine in preventing or treating RSV infection or a disease related thereto.

Abstract: A CO2-sensitive fracturing and displacement fluid contains a surfactant, an auxiliary agent, water, and CO2, wherein CO2 is liquid and/or supercritical CO2. The CO2-sensitive fracturing and displacement fluid provided by the invention does not flow back after completion of fracturing construction, and the gel breaking fluid displacement is carried out after soak for a period of time to improve the tight oil recovery ratio. The CO2-sensitive fracturing and displacement fluid exerts the “one-agent multi-purpose” function of sand carrying, CO2 energization and oil displacement, surfactant imbibition and oil discharge of a fracturing-displacement system in different development and production stages, and achieves the dual goals of expanding the utilization degree of tight oil and improving the displacement efficiency of the tight oil, which can effectively reduce costs and achieve the goal of unified, highly efficient and green development of oil and gas fields.

Abstract: A CO2-sensitive fracturing and displacement fluid contains a surfactant, an auxiliary agent, water, and CO2, wherein CO2 is liquid and/or supercritical CO2. The CO2-sensitive fracturing and displacement fluid provided by the invention does not flow back after completion of fracturing construction, and the gel breaking fluid displacement is carried out after soak for a period of time to improve the tight oil recovery ratio. The CO2-sensitive fracturing and displacement fluid exerts the “one-agent multi-purpose” function of sand carrying, CO2 energization and oil displacement, surfactant imbibition and oil discharge of a fracturing-displacement system in different development and production stages, and achieves the dual goals of expanding the utilization degree of tight oil and improving the displacement efficiency of the tight oil, which can effectively reduce costs and achieve the goal of unified, highly efficient and green development of oil and gas fields.

Abstract: The present invention provides a modified nano-graphite particle three-phase foam profile control and flooding system, which comprises a liquid phase and a gas phase, wherein the liquid phase comprises 0.15%-0.35% foaming agent, 0.04-0.1% foam stabilizer, and water that accounts for the remaining content, the sum of weight percentages of above components is 100%; a gas-liquid ratio of the gas phase to the liquid phase is (1-3):1. The foaming agent is selected from one of alkylsulfopropyl betaine and alkylamidopropyl betaine or a combination of them. The foam stabilizer is modified nano-graphite particles in 80-150 nm particle diameter. The present invention further provides a preparation method of the modified nano-graphite particle and a preparation method of the three-phase foam profile control and flooding system.

Abstract: The present invention provides a modified nano-graphite particle three-phase foam profile control and flooding system, which comprises a liquid phase and a gas phase, wherein the liquid phase comprises 0.15%-0.35% foaming agent, 0.04-0.1% foam stabilizer, and water that accounts for the remaining content, the sum of weight percentages of above components is 100%; a gas-liquid ratio of the gas phase to the liquid phase is (1-3):1. The foaming agent is selected from one of alkylsulfopropyl betaine and alkylamidopropyl betaine or a combination of them. The foam stabilizer is modified nano-graphite particles in 80-150 nm particle diameter. The present invention further provides a preparation method of the modified nano-graphite particle and a preparation method of the three-phase foam profile control and flooding system.

Abstract: The present invention relates to the fracturing field, and discloses a water solution, a clean fracturing fluid, and a method for fracturing reservoir. The water solution contains organic acid amidopropyl dimethylamine, an additive, and water, wherein, the additive is at least one of salicylate, cis-butenedioic acid, o-phthalic acid, dodecyl sulfonate, p-toluene sulfonate, and benzoate. The water solution has high carbon dioxide response performance, a clean fracturing fluid that contains the water solution has superior cyclic utilization performance, and the fracturing fluid can solve the problems of conventional fracturing fluids used in fracturing stimulation of oil and gas reservoirs, including incomplete gel breaking, severe damages to the reservoir, and severe contamination of flow-back fluid, etc.

Abstract: The present invention relates to the fracturing field, and discloses a water solution, a clean fracturing fluid, and a method for fracturing reservoir. The water solution contains organic acid amidopropyl dimethylamine, an additive, and water, wherein, the additive is at least one of salicylate, cis-butenedioic acid, o-phthalic acid, dodecyl sulfonate, p-toluene sulfonate, and benzoate. The water solution has high carbon dioxide response performance, a clean fracturing fluid that contains the water solution has superior cyclic utilization performance, and the fracturing fluid can solve the problems of conventional fracturing fluids used in fracturing stimulation of oil and gas reservoirs, including incomplete gel breaking, severe damages to the reservoir, and severe contamination of flow-back fluid, etc.

Abstract: The present invention relates to the field of oilfield chemistry, and discloses a composition for fracturing and displacement and a method for fracturing and displacement of a tight oil reservoir. The composition contains a pyrrolic compound represented by formula (1) and a laurate; in the formula (1), M? is halide ion, R1 is C1-C5 linear or branched alkyl, and R2 is C15-C20 linear or branched alkyl. The composition for fracturing and displacement provided in the present invention has functions of fracturing, solid carrying, imbibition, drainage and oil displacement, so as to maximize the recovery efficiency of tight oil, and attain economic and social benefits by implementing multiple functions with a single composition, saving resources, and reducing cost.

Abstract: The present invention relates to the field of oilfield chemistry, and discloses a composition for fracturing and displacement and a method for fracturing and displacement of a tight oil reservoir. The composition contains a pyrrolic compound represented by formula (1) and a laurate; in the formula (1), M? is halide ion, R1 is C1-C5 linear or branched alkyl, and R2 is C15-C20 linear or branched alkyl. The composition for fracturing and displacement provided in the present invention has functions of fracturing, solid carrying, imbibition, drainage and oil displacement, so as to maximize the recovery efficiency of tight oil, and attain economic and social benefits by implementing multiple functions with a single composition, saving resources, and reducing cost.

Abstract: The present invention relates to the field of oil-field chemical reagents, and discloses a polymer, a preparation method of the polymer, and a viscosified acid fluid. The polymer contains structural units represented by formula (1), structural units represented by formula (2), and structural units represented by formula (3), wherein, R1-R6 and R11-R13 are H or C1-C4 linear or branched alkyl respectively and independently, R7 is C1-C4 linear or branched alkylene, R8-R10 are C1-C5 linear or branched alkyl respectively and independently, R14 is C1-C4 linear or branched alkyl, and n=0-4.