Abstract: The present invention relates to a learning method of generative adversarial network (GAN) with multiple generators for image denoising, and provides a generative adversarial network with three generators. Such generators are used for removing Poisson noise, Gaussian blur noise and distortion noise respectively to improve the quality of low-dose CT (LDCT) images; the generators adopt the residual network structure. The mapped short connection used in the residual network can avoid the vanishing gradient problem in a deep neural network and accelerate the network training; the training of GAN is always a difficult problem due to the unreasonable measure between the generative distribution and real distribution. The present invention can stabilize training and enhance the robustness of training models by limiting the spectral norm of a weight matrix.

Abstract: Aiming at a hardness mismatch phenomenon in the existing structure hardness design process according to an integral intensity viewpoint, the invention provides a quantitative matching design method for structure heat treatment-hardness distribution. The specific method comprises determining an ideal static intensity field distribution of the dangerous section of the structure according to a limit static stress distribution of a dangerous section of the structure; determining an ideal hardness distribution of the dangerous section of the structure by utilizing an intensity-hardness conversion relation; determining heat treatment requirements such as surface hardness, core hardness and the like by combining material and heat treatment mode; determining an actual hardness distribution of the dangerous section of the structure according to a material end quenching curve and the heat treatment requirement.

Abstract: Aiming at a hardness mismatch phenomenon in the existing structure hardness design process according to an integral intensity viewpoint, the invention provides a quantitative matching design method for structure heat treatment-hardness distribution. The specific method comprises determining an ideal static intensity field distribution of the dangerous section of the structure according to a limit static stress distribution of a dangerous section of the structure; determining an ideal hardness distribution of the dangerous section of the structure by utilizing an intensity-hardness conversion relation; determining heat treatment requirements such as surface hardness, core hardness and the like by combining material and heat treatment mode; determining an actual hardness distribution of the dangerous section of the structure according to a material end quenching curve and the heat treatment requirement.

Abstract: The present invention provides a series shunt wound direct-current (DC) motor driving device and electrical equipment. The series shunt wound DC motor driving device provided by the present invention includes a series shunt wound DC motor, a DC power supply and a chopper.

Abstract: The invention discloses a wire-driven wrist three-degree-freedom training mechanism for rehabilitation of upper limbs, and relates to the field of upper limb rehabilitating mechanical structures. The wire-driven wrist three-degree-freedom training mechanism comprises a wrist executing mechanism, a wrist linking mechanism, a forearm mechanism and an elbow linking mechanism.

Abstract: The invention provides a structural fatigue strength design method based on an intensity field, aiming at the phenomenon that the stress field is mismatched with the overall strength in the existing structural fatigue strength design process according to the overall strength viewpoint.

Abstract: The invention provides a separately excited direct current motor drive apparatus and electric equipment.

Abstract: The present invention provides a shunt series wound direct-current (DC) motor driving device and electric equipment.

Abstract: The invention provides a series wound DC motor driving device and electrical equipment. The series wound DC motor driving device provided by the invention comprises a series wound DC motor, a DC power supply and a chopper, wherein the chopper comprises m chopping units; control signals comprise m unit control signals formed according to preset phase stagger rules and corresponding to the m chopping units separately, and each unit control signal comprises w switch control signals corresponding to w switch control ends in the corresponding chopping units; m pairs of power output terminals are formed at m first power output ends and m second power output ends of the chopping units correspondingly, and m pairs of external terminals of the series wound DC motor are connected with m pairs of power output terminals correspondingly one by one; m is a positive integer not smaller than 2, and w is 1, 2 or 4.

Abstract: The present invention provides a shunt wound direct-current (DC) motor driving device and electrical equipment. The shunt wound DC motor driving device provided by the present invention includes a shunt wound DC motor, a DC power supply, and a chopper that converts a constant voltage into a variable voltage based on a control signal and provides the variable voltage for the shunt wound DC motor.

Abstract: The invention provides a separately excited direct current motor drive apparatus and electric equipment.

Abstract: The present invention provides a high-performance lithium-containing organic sulfur electrode material and a preparation method of an integrated flexible electrode. According to the present invention, 1,3-diisopropenyl benzene with diene bonds and Li2S6 are used as precursors to react to generate the lithium-containing organic sulfide Poly (Li2S6-r-DIB) through an in-situ polymerization method. The synthesized lithium-containing organic sulfide Poly (Li2S6-r-DIB) can be directly attached to a flexible conductive carbon cloth to prepare the integrated flexible electrode due to its good viscosity when heated to a certain temperature. The obtained flexible electrode has the advantages of high capacity, high flexibility, stable structure and the like.

Abstract: The invention provides a structural static strength design method based on the strength field, aiming to solve the present phenomenon that the stress field is mismatched with the overall strength in the existing structural static strength design process according to the overall strength perspective.

Abstract: The present invention provides a direct current motor, comprising: a casing; m pairs of brushes fixed within the casing; a stator provided within the casing, including m main poles corresponding to the m pairs of brushes, and n field winding parts; and a rotor provided within the stator, including a plurality of armature windings in a predetermined connection, wherein each pair of main poles includes an S-polarity main pole and an N-polarity main pole; each pair of brushes includes an S-pole corresponding brush corresponding to the S-polarity main pole, and an N-pole corresponding brush corresponding to the N-polarity main pole, the field winding part includes k field winding units, each field winding unit is made up of field coils formed by winding an insulated conductor strip, which is made of a metal wire coated with an insulating layer, around the m pairs of main poles, and m is a positive integer not less than 2, n is 1 or 2, and k is a positive integer not less than 2.

Abstract: The present invention provides a high-performance lithium-containing organic sulfur electrode material and a preparation method of an integrated flexible electrode. According to the present invention, 1,3-diisopropenyl benzene with diene bonds and Li2S6 are used as precursors to react to generate the lithium-containing organic sulfide Poly (Li2S6-r-DIB) through an in-situ polymerization method. The synthesized lithium-containing organic sulfide Poly (Li2S6-r-DIB) can be directly attached to a flexible conductive carbon cloth to prepare the integrated flexible electrode due to its good viscosity when heated to a certain temperature. The obtained flexible electrode has the advantages of high capacity, high flexibility, stable structure and the like.

Abstract: To solve the technical problem of the incapacity to perform a quantitative matching design of residual compressive stress in the process of prior structural cold working-residual compressive stress design, the invention provides a method of structural cold working-residual compressive stress distribution quantitative matching design, characterized by treating the fatigue strength of a mechanical structure and parts as a field, and matching a structural stress field and a fatigue strength field organically, to quantitatively match the residual compressive stress in conjunction with characteristics of the cold working process.

Abstract: The present invention discloses a vibration-damping and noise-reducing brake disc, where the vibration-damping and noise-reducing brake disc includes an intermediate disc having an outer side and a braking ring which surrounds the outer side of the intermediate disc. Two opposite surfaces of the braking ring are frictional surfaces provided with at least one laser scanning strip, where the laser scanning strip is obtained or formed by laser quenching and hardening treatments of the two frictional surfaces by a laser machine, for changing the physical and mechanical properties of the braking ring, such as the surface and inside hardness, residual stress distribution on the frictional surfaces, and the inside micro-structures of the braking ring, so as to suppress the generation of frictional vibration and noise during braking operations.

Abstract: To solve the technical problem of the incapacity to perform a quantitative matching design of residual compressive stress in the process of prior structural cold working-residual compressive stress design, the invention provides a method of structural cold working-residual compressive stress distribution quantitative matching design, characterized by treating the fatigue strength of a mechanical structure and parts as a field, and matching a structural stress field and a fatigue strength field organically, to quantitatively match the residual compressive stress in conjunction with characteristics of the cold working process.

Abstract: To solve the problem of the incapacity of the prior method for evaluating a lightweight level based on fatigue strength to quantitatively evaluate a whole-field lightweight level of a mechanical structure and parts based on fatigue strength, the invention provides a method for quantitatively evaluating a whole-field lightweight level of a structure based on fatigue strength, characterized by matching a stress field of a structure with a fatigue strength field of the structure to quantitatively evaluate the whole-field lightweight level, specifically, by determining an ideal fatigue strength field distribution of a dangerous cross-section of the structure according to a maximum stress amplitude distribution of the dangerous cross-section, determining a fatigue strength distribution of the dangerous cross-section of the structure according to a static strength distribution requirement and a residual stress distribution of the dangerous cross-section, and applying a stress-strength interference model to quantita

Abstract: The disclosure provides a super-resolution fast-scanning coherent Raman scattering imaging method. The method: using pump light and Stokes light; combining the pump light and the Stokes light to obtain combined light; expanding/collimating the combined light; the combined light after the expanding/collimating entering a galvanometer, passing through a group of a scanning lens/a tube lens and being focused on a back focal plane of a microobjective and incidenting into a biological sample, such that the biological sample is excited to emit anti-Stokes light; collecting the excited anti-Stokes light by a detector. This method is characterized by deflecting, at different angles, a single light spot focused on the microobjective through a diffractive optics group including DOE and a dispersive element, into a plurality of 1×N light spots to incident into the biological sample, such that the anti-Stokes light excited from smaller molecules and being condensed and filtered, is collected by the detector.