Abstract: The present disclosure provides a pump body assembly, a heat exchange apparatus, a fluid machine and an operating method thereof. The pump body assembly includes a piston, a shaft, a piston sheath, and a cylinder. The shaft drives the piston to rotate and reciprocate within the piston sheath while rotating. The piston sheath is located in the cylinder, and a compression chamber is defined between an outer circumferential wall of the piston and an inner wall of the cylinder. A pressure relief recess is defined in the outer circumferential wall of the piston or the inner wall of the cylinder at a position corresponding to the compression chamber.

Abstract: An iron-based metal powder for ultra-high-speed laser cladding comprising chemical composition and mass percentage of the metal powder of: C 0.6˜1.0%, Cr 17.0˜20.0%, Ni 5.0˜6.5%, Mn 2.0˜4.0%, Mo 1.0˜1.5%, Ti 4.0˜6.0%, B 1.0˜1.5%, N 0.08˜0.15%, Si?0.5%, P?0.030%, S?0.030%, balance of Fe and unavoidable impurities, wherein the particle size of the metal powder is 15˜65 ?m, the fluidity is 16˜20 s/50 g.

Abstract: A damping ratio measuring device for consolidation equipment includes a bracket, a consolidation pressure device and a sleeve. The consolidation pressure device is set at the top of the bracket, and the output direction of the consolidation pressure device is directly below. The bottom of the consolidation pressure device is connected with a pressurized piston. A displacement sensor is set on the pressurized piston. The sleeve is set directly below the consolidation pressure device, the pressurized piston extends from the top of the sleeve, the diameter of the pressurized piston is the same as the inner diameter of the sleeve, the bottom of the sleeve is sealed with a support plate, and there are two bending element sensors at the top of the support plate and the bottom of the pressurized piston.

Abstract: Provided is a graphene composite primarily used as a conductive additive for forming an electrode for lithium ion batteries, which has performance equal to or higher than conventional dispersants and is deceased in cost by using an inexpensive and easily available dispersant. The graphene composite includes a graphene powder and a compound having a structure of pyrazolone.

Abstract: Disclosed in the disclosure are a video playing detection method and apparatus. The video playing detection method includes: obtaining a playing count of a video at a detection pending moment; obtaining a quitting moment of the video, wherein the quitting moment is a video playing completion moment; judging whether the playing count of the video at the detection pending moment is zero; if the playing count of the video at the detection pending moment is zero, judging whether the detection pending moment is before the quitting moment; and if the detection pending moment is before the quitting moment, determining that video playing is not completed at the detection pending moment. The disclosure solves the problem in the related art where a video playing behavior cannot be accurately analyzed.

Abstract: Disclosed are a method and device for searching for the legal provision. The method includes: a search keyword in a search query text is acquired (S101); a legal term which has a meaning similar to and/or the same as the meaning of the search keyword is acquired (S102); the search query text is expanded according to the legal term which has the meaning similar to and/or the same as the meaning of the search keyword to obtain an expanded search query text (S103); searching is performed according to the expanded search query text to obtain a target judgment document set (S104); and a target legal provision of the target judgment document set is acquired (S105). Through the method, the problem in the relevant art of difficulty in acquisition of a relevant legal provision according to an input search term is solved.

Abstract: Provided is a graphene composite primarily used as a conductive additive for forming an electrode for lithium ion batteries, which has performance equal to or higher than conventional dispersants and is deceased in cost by using an inexpensive and easily available dispersant. The graphene composite includes a graphene powder and a compound having a structure of pyrazolone.

Abstract: The invention provides an enhanced silk fiber rivaling spider silk in mechanical performance, in combination with a very low-cost method for producing it from the usual silkworms. The method provides for the simple application of an electric field which results in an enhancement of over (?) 40% in the strength, and of 200% in the breaking energy with respect to ordinary silkworm silk. The critical elasticity is enhanced to the level of the dragline spider silk. The provided enhanced silk protein material has the same protein primary structure, fiber diameter and length of the customary silk. The method of formation offers the following advantages in comparison to other methods available in the prior art. Industrial scale production can be readily and cost-effectively achieved, given the wide-range availability of silkworms. The provided method relies largely on the present standard production processes of silkworm silk, and hence a low level of investment is required.

Abstract: The present invention provides kits and microarrays containing primer pairs for amplifying drug resistance genes and/or probes for detection of drug resistance genes. Also provided are methods of detecting drug resistance genes using kits and microarrays described herein.

Abstract: The present invention relates to the use of sophoricoside for the prevention and/or the treatment of articular cartilage degeneration or osteoarthritis in post-menopausal women. It is effective and has no side-effects on uterus, breasts and the like as animal-derived estrogen does. It is easy to be extracted and the source thereof is abundant. Therefore, it has a promising marketing prospect.

Abstract: The invention provides an enhanced silk fiber rivaling spider silk in mechanical performance, in combination with a very low-cost method for producing it from the usual silkworms. The method provides for the simple application of an electric field which results in an enhancement of over (?) 40% in the strength, and of 200% in the breaking energy with respect to ordinary silkworm silk. The critical elasticity is enhanced to the level of the dragline spider silk. The provided enhanced silk protein material has the same protein primary structure, fiber diameter and length of the customary silk. The method of formation offers the following advantages in comparison to other methods available in the prior art. Industrial scale production can be readily and cost-effectively achieved, given the wide-range availability of silkworms. The provided method relies largely on the present standard production processes of silkworm silk, and hence a low level of investment is required.

Abstract: The present invention provides kits and microarrays containing primer pairs for amplifying drug resistance genes and/or probes for detection of drug resistance genes. Also provided are methods of detecting drug resistance genes using kits and microarrays described herein.