Abstract: The present disclosure provides a cuboid magnetometer with high fluorescence collection efficiency, used for cardiac magnetic field measurement, and based on nitrogen-vacancy (NV) centers in diamond, and a cardiac magnetic field measurement system. The cardiac magnetic field measurement system includes a magnetic shielding chamber, a non-magnetic bed, an array probe for cardiac magnetic field measurement, a three-axis displacement platform, a high-speed data collection card, a fiber laser source, a microwave source, and a computer. The array probe for cardiac magnetic field measurement includes a non-magnetic shell, a stepping motor, a porous rotary fiber coupling apparatus, a fiber bundle set, a special photodetector (PD) set, a filter set, a ring-shaped antenna, and special diamond.

Abstract: This disclosure provides a novel compositions and methods to deliver cyclosporine A using genetically engineered protein polymers.

Abstract: A frequency measurement system and method of a radio frequency (RF) signal. The frequency measurement system includes: a magnetic field source module, a light source module, an excitation module, a complementary metal-oxide-semiconductor (CMOS) camera, and a signal processing module; the excitation module is disposed in the magnetic field; the excitation module is disposed on an output light path of the light source module; the CMOS camera is disposed on an output light path of the excitation module; and the CMOS camera is connected to the signal processing module; the light source module is configured to emit a laser; the CMOS camera is configured to capture an excitation image when the laser enters the excitation module to which a to-be-tested RF signal is applied; and the signal processing module is configured to determine a frequency of the to-be-tested RF signal according to the excitation image.

Abstract: A frequency measurement system and method of a radio frequency (RF) signal. The frequency measurement system includes: a magnetic field source module, a light source module, an excitation module, a complementary metal-oxide-semiconductor (CMOS) camera, and a signal processing module; the excitation module is disposed in the magnetic field; the excitation module is disposed on an output light path of the light source module; the CMOS camera is disposed on an output light path of the excitation module; and the CMOS camera is connected to the signal processing module; the light source module is configured to emit a laser; the CMOS camera is configured to capture an excitation image when the laser enters the excitation module to which a to-be-tested RF signal is applied; and the signal processing module is configured to determine a frequency of the to-be-tested RF signal according to the excitation image.

Abstract: The present disclosure relates to a visual servoing method based on fusion of distance space and image feature space. The method includes: constructing an image Jacobian matrix; constructing a depth Jacobian matrix; fusing the image Jacobian matrix and the depth Jacobian matrix, to obtain a hybrid visual servoing Jacobian matrix; and obtaining a robot motion control amount according to the hybrid visual servoing Jacobian matrix by using a control algorithm, to enable a robot to move to a target position, to complete precise positioning.

Abstract: A system for simultaneously and microscopically measuring vapor cell coating film energy transfer and relaxation characteristics at nanometer scales includes a space relaxation characteristic detection unit which includes a laser, an optical isolator, a spatial light filter, a reflector, a Glan-Taylor polarizer, a first quarter-wave plate, a spatial light modulator, a focusing lens, a second quarter-wave plate, a polarizing film, a PD detection unit, an I/V amplification unit, a data acquisition unit, a spectroscope and an optical chopper, an atomic force microscope detection unit for energy transfer micro-areas, a shielding cylinder, a coated alkali metal atomic vapor cell, a data processing unit and a magnetic field controlled coil.

Abstract: A method of displaying an image, an electronic device, and a storage medium, which relate to an image processing field, in particular to fields of a three-dimensional display technology and a computer graphics technology, and are applied to augmented reality, virtual reality, mixed reality or other scenarios. The method includes: obtaining an adjusted parameter value in response to a triggering operation of an editing control for a parameter item to be adjusted; generating a three-dimensional avatar related to a target image, based on the adjusted parameter value, three-dimensional model data, and target image data of the target image; generating a preview image of the three-dimensional avatar according to the three-dimensional avatar; and displaying the three-dimensional avatar by using the adjusted parameter value, in response to a determination that a preview effect of the preview image meets an expected effect.

Abstract: A microorganism curing anti-seepage device based on capsule transmission and control includes a stock bin which includes a mixing bin and an oil storage bin separated from the mixing bin. A feed pipe and an oil injection pipe are provided on the stock bin. A central shaft is rotatably provided within the mixing bin. A stirring component is provided on the central shaft. A delivery pipe is provided at a bottom portion of the mixing bin, an oil conduit is provided at a bottom portion of the oil storage bin, a jet pipe is provided at a junction of the oil conduit and the delivery pipe. Since microbial capsules are decomposed layer by layer, after the microbial capsules reach fissures, the microbial bacteria, the nutrient solution and the curing liquid are released step by step, and then calcium carbonate is induced by microorganisms to achieve solidification and anti-seepage of fissures.

Abstract: The present disclosure relates to synthesis of porous polymer networks and applications of such materials. The present disclosure relates to a method of fabricating of a porous polymer network comprising: (a) providing: (i) a first reactant comprising a plurality of compounds comprising at least one acetyl group, said plurality of compounds comprising at least one compound type, and (ii) a second reactant comprising an alkylsulfonic acid, and (b) creating a solution of said reactants, (c) casting said solution in a form, and (d) treating said solution under such conditions so as to produce a porous polymer network.

Abstract: Provided is a modified immune cell, comprising a chimeric antigen receptor and/or a coding element therefor, or comprising a T cell receptor and/or a coding element therefor. The immune cell further comprises: leptin and/or a functional fragment thereof; and/or, a leptin receptor and/or a functional fragment thereof, and the expression quantity of the leptin receptor and/or the functional fragment thereof in the immune cell is increased compared with that in an immune cell without the corresponding modification. In addition, also provided is another modified immune cell, comprising leptin and/or a functional fragment thereof, and/or, a leptin receptor and/or a functional fragment thereof, and a low-density lipoprotein-receptor-related protein or a fragment thereof.

Abstract: Disclosed is a method for maize cultivation in the black soil area of northeast China, including the following steps that can be conducted in any order: A. conservation tillage with straw returning: after a crop is harvested in autumn, raking and concentrating straws in rows; B. when sowing, disposing a front-loaded returning device on a sowing machine for a second concentration; C. when sowing, increasing the number of plants through a wide- and narrow-row effect; D. additional application of an organic bacterial fertilizer: where, the organic bacterial fertilizer includes a base fertilizer and a seed fertilizer; the base fertilizer refers to 500 kg of a 40% organic-inorganic mixed slow-release fertilizer; the seed fertilizer refers to 80 kg of an organic bacterial fertilizer; E. weeding with a herbicide treated by a secondary dilution method; and F. subsoiling to break a plow pan in summer: subsoiling flat land parcels to 40 cm.

Abstract: The present application discloses an image processing method, apparatus, electronic device and computer readable storage medium. The image processing method comprises detecting a text region in an image to be processed, recognizing the text region to obtain a text recognition result. In this application, the text recognition in the image to be processed is realized, the recognition manner for the text in the image is simplified, and the recognition effect for the text is improved.

Abstract: This disclosure provides a novel compositions and methods to deliver cyclosporine A using genetically engineered protein polymers.

Abstract: A method and system for credit risk identification. The disclosed embodiments include receiving a loan request to a credit business system from a user; in response to the loan request, obtaining operation data by the user on the credit business system within a period of time before the loan request; performing risk identification on the user using a neuronal network according to the loan request and the operation data to generate a result, and determining a response to the loan request based on the result of the risk identification.

Abstract: A system for simultaneously and microscopically measuring vapor cell coating film energy transfer and relaxation characteristics at nanometer scales includes a space relaxation characteristic detection unit which includes a laser, an optical isolator, a spatial light filter, a reflector, a Glan-Taylor polarizer, a first quarter-wave plate, a spatial light modulator, a focusing lens, a second quarter-wave plate, a polarizing film, a PD detection unit, an I/V amplification unit, a data acquisition unit, a spectroscope and an optical chopper, an atomic force microscope detection unit for energy transfer micro-areas, a shielding cylinder, a coated alkali metal atomic vapor cell, a data processing unit and a magnetic field controlled coil.

Abstract: A nanostructured composite membrane filter for rapid water purification and methods for preparing the nanostructured composite membrane filter are provided. The nanostructured composite membrane includes a silver layer having a plurality of silver functionalized nanofibers for disinfecting microorganisms of water, and a chemical modified layer having a plurality of chemical modified nanofibers for removing impurities from the water. The plurality of silver functionalized nanofibers includes a plurality of polyvinyl alcohol (PVA) nanofibers coated with polydopamine (PDA) and silver, and each of the plurality of chemical modified nanofibers includes a polymer matrix such as polyvinyl alcohol (PVA) and anionic polyelectrolytes such as poly (sodium styrenesulfonate) (PSSNa) for capturing metal ions of the water.

Abstract: Disclosed is a method for maize cultivation in the black soil area of northeast China, including the following steps that can be conducted in any order: A. conservation tillage with straw returning: after a crop is harvested in autumn, raking and concentrating straws in rows; B. when sowing, disposing a front-loaded returning device on a sowing machine for a second concentration; C. when sowing, increasing the number of plants through a wide- and narrow-row effect; D. additional application of an organic bacterial fertilizer: where, the organic bacterial fertilizer includes a base fertilizer and a seed fertilizer; the base fertilizer refers to 500 kg of a 40% organic-inorganic mixed slow-release fertilizer; the seed fertilizer refers to 80 kg of an organic bacterial fertilizer; E. weeding with a herbicide treated by a secondary dilution method; and F. subsoiling to break a plow pan in summer: subsoiling flat land parcels to 40 cm.

Abstract: The present invention discloses a piezoelectric ultrasonic microinjection device based on a flexible hinge mechanism. The device includes: a cover, a flexible hinge mechanism, a base, a screw cap and an end cap fixedly assembled together, the base being provided with a pump interface; and a micropipette fixedly mounted in the base, the screw cap and the end cap and extending outward, the micropipette being in communication with the pump interface; wherein the flexible hinge mechanism comprises a housing, a piezoelectric ceramic package module encapsulated in the housing, a central shaft fixedly mounted with the piezoelectric ceramic package module and the base, and a vibration output shaft extending from the piezoelectric ceramic package module into the central shaft, a plurality of flexible hinge beams being disposed between the central shaft and the housing.

Abstract: Embodiments of the invention provide a bearing device and a plasma processing apparatus. According to at least one embodiment, the bearing device includes a base, a base driving mechanism, a pressing ring and a baffle ring.