Abstract: An inchworm motion linear motor based on an electromagnetic clamping device in a technical field of electromagnetic motors includes more than two electromagnetic clamping mechanisms which are arranged in pairs and mutually symmetrically connected. The electromagnetic clamping mechanism includes magnetic field generation devices, rolling bodies, an output shaft and a shell body, wherein the magnetic field generation devices are fixedly arranged outside the shell body; and the shell body and the rolling bodies are sleeved outside the output shaft in sequence. The inchworm motion linear motor based on the electromagnetic clamping device can be manufactured into an electric control super-large clamping force device by sensitively controlling mechanical rigid locking and releasing states with electromagnetically. The clamping device can be manufactured into a driving device or the linear motor with super-large load and precise movement.

Abstract: An SiOx/Si/C composite material, includes SiOx/Si composite particles and a carbon coating layer coated on the SiOx/Si composite particles. The SiOx/Si composite particles include nano-silicon crystallites embedded in an SiOx (0<x?2) amorphous matrix phase. The SiOx/Si composite particles have an Si:O molar ratio of 5:1-1.1:1, preferably 2:1-1.2:1. A process for producing an SiOx/Si/C composite material, includes a) milling SiO powder together with a metal reductant in a molar ratio of 125:1-10:1, preferably 2:11-5:1, b) totally removing the oxidation product of the metal reductant to obtain SiOx/Si composite particles, and c) coating the SiOx/Si composite particles with carbon to obtain the SiOx/Si/C composite material.

Abstract: The present invention relates to a method for preparing graphene from a biomass-derived carbonaceous mesophase, which includes: soaking a base substance into an ethanol solution of a biomass-derived carbonaceous mesophase; after a certain period of time, taking out and drying the base substance, a layer of biomass-derived carbonaceous mesophase film being attached to the surface of the base substance; subjecting the base substance to a heat treatment under the protection of a hydrogen atmosphere, then a stacked graphene film was formed on the surface of the base substance; and further subjecting the base substance to ultrasonic dispersion in an alcohol solvent to separate the graphene film and the base substance, then a graphene alcohol was formed. The preparation process of the present invention is easy to implement. The raw material biomass-derived carbonaceous mesophase has abundant sources and is low in cost. The preparation process has low energy consumption, and is applicable to mass production.

Abstract: Provided is a breeding method for two lines hybrid rice based on the rice mutant osms4 (Oryza sativa male sterile 4), which was originally selected from the mutagenizing seeds of japonica cultivar 9522 with 60Co gamma ray, and the stable inheritance osms4 mutant was obtained after three generations backcrossing, which is regulated by a recessive single gene OsMS4. The invention is related to the usage of OsMS4 gene (also known as Carbon Starved Anther, the CSA gene), osms4 mutant can be used as male sterile line under short day condition in both japonica and indica background, which grows abnormal anther with defection during second mitosis stage and produces completely sterile pollen. While under the long day condition, the osms4 mutant can be used as maintainer liner and produces normal pollen.

Abstract: A steel plate for funnel chest orthopaedic surgery includes a supporting plate (1), a fixing piece (2), a telescopic fixing piece (3), a guiding head (4) and screws (6). The supporting plate (1) is an elongate steel plate. One end of the supporting plate (1) is designed to be integrated with the fixing piece (2), and the other end is provided with a size-adjusting strap (5). The telescopic fixing piece (3) is an elongate steel plate with the same width as that of the supporting plate (1). One end of the telescopic fixing piece (3) is designed to be integrated with the fixing piece (2), and the other end is provided with a groove. The guiding head (4) is an elongate steel plate with the same width as that of the supporting plate (1). One end of the guiding head (4) is provided with a hook, and the other end is provided with a groove.

Abstract: The present invention relates to a bioengineering strain for production of novel microorganism-originated fungicides and uses thereof. The bioengineering strain for production of microorganism-originated fungicides of the present invention is obtained by transforming a phzH gene recombination expression plasmid into a strain producing phenazine-1-carboxylic acid, wherein the bioengineering strain produces phenazine-1-carboxamide. The present invention utilizes an existing strain producing phenazine-1-carboxylic acid to carry the phzH gene recombination expression plasmid, thereby achieving efficient expression of the phzH gene and transforming phenazine-1-carboxylic acid into phenazine-1-carboxamide. The present invention further discloses uses of the bioengineering strain, including a microorganism-originated fungicide produced by the bioengineering strain through fermentation, and preparation and application of the microorganism-originated fungicide.

Abstract: This invention relates to methods, compositions, and kits for enzymatic phosphorothioation of the sugar-phosphate backbone of nucleic acids. The invention allows for phosphorothioation of pre-existing nucleic acids.

Abstract: The embodiments of the present disclosure disclose a method and apparatus for reducing the parameter transmission bandwidth. The parameter sender reduces the values of the parameters before sending the parameters to the parameter receiver. This scheme reduces the bandwidth consumed during parameter transmission, thus makes the transmission more efficient. The embodiment of the present disclosure also discloses a method for key exchange. This method reduces the values of the transmission parameters before sending the transmission parameters. This saves the bandwidth compared with the protocol in the prior art. Besides, the embodiment of the present disclosure discloses a system for key exchange. The parameter sender sends the transmission parameters to the bandwidth processing unit.

Abstract: The present invention relates to a 2,2?,6,6?-tetrasubstituted aminophosphine ligand and its synthesis method. The structure of the ligand is shown as below. Its synthesis method comprises: Step (1) coupling 2,6-dinitrochlorobenzene as the starting material to obtain 2,2?,6,6?-tetranitrobiphenyl; Step (2): hydrogenating the 2,2?,6,6?-tetranitrobiphenyl with Pd/C to obtain 2,2?,6,6?-tetraminobiphenyl; Step (3): reacting the 2,2?,6,6?-tetraminobiphenyl with a phosphine halide to obtain the 2,2?,6,6?-tetrasubstituted aminophosphine ligand. The ligand of the present invention is an achiral compound, and its preparation method is simple. The ligand can be converted to a chiral bimetallic catalyst with single configuration eventually through introduction of external chirality. Moreover, the ligand can be used in various asymmetric reaction catalyzed by metals with high reactivity and stereoselectivity.

Abstract: An infusion pump comprises a housing (1); and a controller (3), a direct current motor (4), a transmission mechanism (6), a rotary encoder (5), and a liquid reservoir (7), which are located within the housing (1), wherein: a piston (71) is provided within the liquid reservoir (7); the transmission mechanism (6) has one end connected with the piston (71) and the other end connected with the direct current motor (4); the rotation shaft of the rotary encoder (5) is connected with the rotation shaft (41) of the direct current motor (4); the controller (3) is connected with the rotary encoder (5) and is provided thereon with a built-in clock and an input key (2) capable of receiving an external control signal. The infusion pump can freely adjust the infusion time and the infusion dose.

Abstract: An infusion pump comprises a housing (1); and a controller (3), a direct current motor (4), a transmission mechanism (6), a rotary encoder (5), and a liquid reservoir (7), which are located within the housing (1), wherein: a piston (71) is provided within the liquid reservoir (7); the transmission mechanism (6) has one end connected with the piston (71) and the other end connected with the direct current motor (4); the rotation shaft of the rotary encoder (5) is connected with the rotation shaft (41) of the direct current motor (4); the controller (3) is connected with the rotary encoder (5) and is provided thereon with a built-in clock and an input key (2) capable of receiving an external control signal. The infusion pump can freely adjust the infusion time and the infusion dose.

Abstract: The invention affords C2-symmetrical ruthenocene diphosphine ligands with surface chirality and their manufacture. The present invention uses (S)-(S)-1,1?-2(diphenylphosphino)-2,2?-2[(S)-4-isopropyloxazolinyl] ruthenocene as raw material and the product is prepared through two or three steps of reaction. At the action of trifluoroacetic acid, (S)-(S)-1,1?-2(diphenylphosphino)-2,2?-2[(S)-4-isopropyloxazolinyl] ruthenocene first removes oxazoline and gets ester amides compound which then carries out ester exchange or reduction alkylation and gets the product of ruthenocene diphosphine ligand with surface chirality. The ligands prepared with the structure as follows from the invention can be used in all kinds of metallic catalysis asymmetric reaction and has good reaction activity and stereoselectivity, wherein R is methyl or ethyl, R1 is linear or branched alkyl, cycloalkyl, alkoxy, aryl, aralkyl and alkyl amino.

Abstract: The present invention provides a digital image processing enhancing system and method with denoising function. The collected digital image is input; the obtained digital image is decomposed into an illumination image and a reflection image, and then the decomposed illumination image and the reflection image is processed, at last, the processed illumination image and the reflection image are composed into an output image, which is output to an output device. The present invention can improve the image quality, remove the noises of the image, remain details features of an object and obtain the natural visual effect.

Abstract: A transcatheter delivery device for delivering a slide-and-lock stent to a stenosed lumen consists of an outer cannula (3), an inner sheath (2) and a balloon catheter (1). The distal end of the balloon catheter (1) is a balloon (5). The length and diameter of the balloon (5) can be chosen according to the requirement of the stent. A cone (4) is attached to the distal end of the balloon (5) to prevent the stent sliding to the distal end. The proximal part of the cone (4) can be inserted into the outer cannula (3) to maintain the external surfaces of the cone (4) and the outer cannula (3) on the same level. The inner sheath (2) is a little shorter than the balloon catheter (1) and extends to the proximal end of the balloon (5) so as to prevent the stent sliding to the proximal end.

Abstract: A processing method is provided integrating hot stamping and controllable subsequent heat treatment in the technical field of hot working for steels. It includes the steps of selecting and preparing a steel blank, hot stamping treatment, controllable temperature quenching, adjusting the temperature of the steel blank to a tempering temperature and fine stamping at the same time. The invention combines the hot stamping and controllable heat treatment to improve the strength of material with precise plastic deformation and save energy as well. The tensile strength of the processed steel is greater than 1900 Ma.

Abstract: A steel plate for funnel chest orthopaedic surgery includes a supporting plate (1), a fixing piece (2), a telescopic fixing piece (3), a guiding head (4) and screws (6). The supporting plate (1) is an elongate steel plate. One end of the supporting plate (1) is designed to be integrated with the fixing piece (2), and the other end is provided with a size-adjusting strap (5). The telescopic fixing piece (3) is an elongate steel plate with the same width as that of the supporting plate (1). One end of the telescopic fixing piece (3) is designed to be integrated with the fixing piece (2), and the other end is provided with a groove. The guiding head (4) is an elongate steel plate with the same width as that of the supporting plate (1). One end of the guiding head (4) is provided with a hook, and the other end is provided with a groove.

Abstract: Provided is a novel peptide ligand (Leu-Ala-Arg-Leu-Leu-Thr) for binding to an EGFR surface pocket based on its 3D crystal structure. When conjugated to the distal end of liposome surface PEG moieties, the peptide ligand directs liposome binding and uptake by EGFR high expressing cancer cells (H1299 and SPCA1) specifically and efficiently. The targeted delivery of liposomal anticancer drug doxorubicin results in better therapeutic efficacy towards cells in vitro. In vivo, the targeted liposomes are injected via tail vein and the time course of their distribution and accumulation in xenograft tumor tissues are studied using a live animal fluorescence imaging system. The LARLLT targeted liposomes were seen to gradually concentrate at the tumor site and be preferentially retained more than 80 hours after injection.

Abstract: The invention affords C2-symmetrical ruthenocene diphosphine ligands with surface chirality and their manufacture. The present invention uses (S)—(S)-1,1?-2(diphenylphosphino)-2,2?-2[(S)-4-isopropyloxazolinyl]ruthenocene as raw material and the product is prepared through two or three steps of reaction. At the action of trifluoroacetic acid, (S)—(S)-1,1?-2(diphenylphosphino)-2,2?-2[(S)-4-isopropyloxazolinyl]ruthenocene first removes oxazoline and gets ester amides compound which then carries out ester exchange or reduction alkylation and gets the product of ruthenocene diphosphine ligand with surface chirality. The ligands prepared with the structure as follows from the invention can be used in all kinds of metallic catalysis asymmetric reaction and has good reaction activity and stereoselectivity, wherein R is methyl or ethyl, R1 is linear or branched alkyl, cycloalkyl, alkoxy, aryl, aralkyl and alkyl amino.

Abstract: Polymerization process for preparing mono-disperse organic/inorganic nanocomposite microspheres in the field of nano technology is disclosed. The process comprises preparing of two different miniemulsion systems of A with inorganic nanoparticles and B with polymeric monomers in advance; adding water-soluble initiator into miniemulsion A, stirring till complete dissolution finally, heating the mixed system to a given temperature for isothermal reaction. The grain size of the as-prepared superparamagnetic Fe3O4/polystyrene using to present invention is homogeneous and controllable, and the magnetic particles content is controllable.

Abstract: The present invention relates to a 2,2?,6,6?-tetrasubstituted aminophosphine ligand and its synthesis method. The structure of the ligand is shown as below. Its synthesis method comprises: Step (1) coupling 2,6-dinitrochlorobenzene as the starting material to obtain 2,2?,6,6?-tetranitrobiphenyl; Step (2): hydrogenating the 2,2?,6,6?-tetranitrobiphenyl with Pd/C to obtain 2,2?,6,6?-tetraminobiphenyl; Step (3): reacting the 2,2?,6,6?-tetraminobiphenyl with a phosphine halide to obtain the 2,2?,6,6?-tetrasubstituted aminophosphine ligand. The ligand of the present invention is an achiral compound, and its preparation method is simple. The ligand can be converted to a chiral bimetallic catalyst with single configuration eventually through introduction of external chirality. Moreover, the ligand can be used in various asymmetric reaction catalyzed by metals with high reactivity and stereoselectivity.