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368results about How to "Increase binding force" patented technology

Connectable rod system for driving downhole pumps for oil field installations

Improved sucker rod joints for down hole petroleum pumping applications are provided within the form factor of standard API sucker rods, such that existing inventory in suitable condition is fully usable in more demanding applications. The pin ends are selected or processed such as to provide preselected axial distance between a flat pin end and at least one reference surface, such as a threaded region or reference shoulder or both. The coupler is dimensioned such that the pin ends are in abutment either with each other or with opposite sides of an intervening torque washer in the central region, when the connection is made to a selected level of thread engagement. Furthermore, the engagement is such as to put the pin ends in compression and the coextensive length of coupler in tension. This increases frictional restraints and locks the elements together to resist fatigue failure upon cycling and to insure together with an anaerobic adhesive sealant, against back threading. This arrangement enables standard quality sucker rods to be employed in a configuration which is mechanically secure and highly resistant to tensile, bending and torsional forces, thus assuring a greater strength at the joint than in the rod itself, and resisting the effects of material fatigue arising from long term and stressful cycling operations.
Owner:CARSTENSEN KENNETH J

Method for protecting Internet user privacy through third-party platform

The invention discloses a method for protecting Internet user privacy through a third-party platform, and relates to an Internet user, a service party and a third-party privacy protection platform, wherein the Internet user can enjoy related service through the Internet, the service party is one or more service providers that Internet service involves, and the third-party privacy protection platform is a credible neutral institution that protects privacy safety of the Internet user. The user can obtain unique identity identification after being authenticated by the third-party privacy protection platform, personal privacy information is management through the platform, and privacy protection limits of authority can be set according to service situations and personal preference. When the user applies for a service, only identity identification needs to be provided to the service party, the third-party privacy protection platform verifies the identity of the user and feeds back a result, and if user information-related service is needed, the service party can submit an application to the third-party privacy protection platform, the platform processes the application according to user privacy limits of authority setting and related regulations and restraints.
Owner:YANSHAN UNIV

Connectable rod system for driving downhole pumps for oil field installations

Improved sucker rod joints for down hole petroleum pumping applications are provided within the form factor of standard API sucker rods, such that existing inventory in suitable condition is fully usable in more demanding applications. The pin ends are selected or processed such as to provide preselected axial distance between a flat pin end and at least one reference surface, such as a threaded region or reference shoulder or both. The coupler is dimensioned such that the pin ends are in abutment either with each other or with opposite sides of an intervening torque washer in the central region, when the connection is made to a selected level of thread engagement. Furthermore, the engagement is such as to put the pin ends in compression and the coextensive length of coupler in tension. This increases frictional restraints and locks the elements together to resist fatigue failure upon cycling and to insure together with an anaerobic adhesive sealant, against back threading. This arrangement enables standard quality sucker rods to be employed in a configuration which is mechanically secure and highly resistant to tensile, bending and torsional forces, thus assuring a greater strength at the joint than in the rod itself, and resisting the effects of material fatigue arising from long term and stressful cycling operations.
Owner:CARSTENSEN KENNETH J

Friction damper

ActiveCN103291797AStrong applicability and practicalitySimple structureBridge structural detailsFriction dampersWear resistantEngineering
The invention relates to a friction damper which comprises a plunger and a restraint cylinder, wherein the plunger is at least locally arranged in the restraint cylinder. The friction damper is characterized in that at least one group of combined expansion rings is arranged on the surface of the plunger; the combined expansion rings are formed by matching outer circular rings with inner conical surfaces and inner circular rings with outer conical surfaces; an inner wall of the restraint cylinder is tightly contacted with the surfaces of the outer circular rings; or a wear-resistant and rust-proof layer or a wear-resistant and rust-proof sleeve is arranged between the restraint cylinder and the outer circular rings. The friction damper is simple in structure, stable in property, long in service life, very environment-friendly and better in engineering practicability, does not require maintenance basically, can continue to be used after repair, has the renewable characteristic and a wide market application prospect, can adjust damping parameters conveniently, and can optimize and adjust the damping parameters of a product according to engineering practice in a field.
Owner:尹学军 +3

Retinex low-illumination color image enhancement method based on variation constraint

The invention discloses a Retinex low-illumination color image enhancement method based on variation constraint, and relates to the technical field of color image processing, the method comprises thefollowing steps: converting an original color image from an RGB space to an HSV space, and extracting an image of an intensity channel V as a grayscale image; constructing a conductivity weight matrixby using the extracted grayscale image; constructing an objective function by using an energy minimization principle, inputting the grayscale image and the conductance weight matrix into the objective function, and solving the objective function by using an alternating direction multiplier method to obtain an illumination image; Separating a reflection component from the original color image according to the illumination image to obtain a reflection image; The gray level image is reconstructed by using the illumination image and the reflection image; According to the method, the boundary of the image is well reserved, so that the estimated illumination image is more accurate, the reflection image contains more internal details and texture features of the image, the contrast ratio of the enhanced image is improved, and the details of the high-brightness position of the image are reserved.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Combined column formed by embedding round steel tubes filled with recycled concrete in multiple-cavity steel pipe filled with concrete and provided with batten plates

The invention provides a combined column formed by embedding round steel tubes filled with recycled concrete in a multiple-cavity steel pipe filled with concrete and provided with batten plates. The combined column comprises a polygonal steel pipe (1), an inner partition board (2), normal concrete (3), the round steel tubes (4), recycled concrete (5) and the batten plates (6), wherein the polygonal steel pipe is divided into multiple small cavities through the inner partition board; the restriction effect of steel plates on the core concrete is improved, so that the concrete is in a three-dimensional pressed state highly, therefore, the concrete strength is improved greatly, and the plasticity and toughness of the concrete are improved remarkably; meanwhile, due to the arrangement of the inner partition board, the stiffness, bearing capacity, ductility and seismic capacity of the whole component are improved to a certain extent; the round steel tubes have the stronger effect of a hoop, so that the influence on stress performance caused by degradation of recycled concrete material performance is reduced even eliminated, the application of the recycled concrete is popularized, and meanwhile, the structural performance is ensured; under the earthquake reciprocating effect, the earthquake energy is consumed through the mutual shearing of the batten plates and the concrete, so that the seismic performance is improved.
Owner:BEIJING UNIV OF TECH

Spiral-stirrup square steel tube concrete column and manufacturing method thereof

The invention relates to a spiral-stirrup square steel tube concrete column comprising a square steel tube, a spiral stirrup and concrete. The spiral-stirrup square steel tube concrete column is characterized in that the square steel tube is connected with the spiral stirrup by spot welding to form a spiral-stirrup square steel tube, and the concrete is directly cast into the spiral-stirrup square steel tube. The spiral-stirrup square steel tube concrete column integrates the advantages of a square steel tube concrete column and a round steel tube concrete column and has the advantages of simple node, convenience in processing, short construction period, convenience in the adotpion of fire-prevention plates and the like because the outer part of the spiral-stirrup square steel tube concrete column is the square steel tube; and because the spiral stirrup is arranged in the spiral-stirrup square steel tube concrete column, the restraining capacity of the square steel tube on the core concrete is enhanced so that the bearing capacity of the steel tube concrete column is increased, and the area of a column section is reduced. The spiral-stirrup square steel tube concrete column has simple production process and high production efficiency and is especially suitable for the structures of high-rise buildings.
Owner:TIANJIN UNIV

Deep mining method capable of optimizing support parameters and preventing roadway delaying water gushing

A deep mining method capable of optimizing support parameters and preventing roadway delaying water gushing includes that (1) an initial supporting scheme is determined; (2) anchoring rod supporting parameters are optimized; (3) the supporting scheme and supporting parameters are determined; (4) a fault fracture zone water-bearing stratum is detected, grouted and reinforced; and (5) roadway waste filling is conducted. By means of the method, a water gushing proceduring concept is provided in theory, and a rock mass creep deformation characteristic and confined water gushing timeliness are proved through experiments. Delaying water gushing is prevented by optimizing the supporting parameters, preventing roadway flowing deformation and improving anti-gushing potential of protecting rock mass.
Owner:SHANDONG UNIV OF SCI & TECH

A Calibration Method for Parameters of Finite Parallel First-Order Reaction Hydrocarbon Kinetic Model

The invention discloses a method for calibrating hydrocarbon generation dynamical model parameters by finite first-order parallel reaction and is applied to the technical field of evaluation of hydrocarbon resources. On the basis of a hydrocarbon generation dynamical theory, the method is used for describing a hydrocarbon generation process of an organic matter. By the method, kerogen oiling, kerogen gassing and oil gassing which are greatly different from one another and dynamical processes of different types of organic matters can be separately discussed effectively. Furthermore, by a modelcalibration math method, an optimization approximate solution is performed; therefore, defects of limited calibration precision improvement and relatively redundant calculation quantity which are caused by infinite first-order parallel reaction can be overcome; and calculation without a precise solution under an experimental condition is realized through approximate solution of dynamical parameters. By the method, the description of a complicated process of organic matter hydrocarbon generation and a quantitative and dynamic description for organic matter hydrocarbon generation characteristics are realized effectively.
Owner:NORTHEAST GASOLINEEUM UNIV

MRI image reconstruction method based on enhanced sparse representation of image blocks

The invention discloses an MRI image reconstruction method based on the enhanced sparse representation of image blocks, and belongs to the technical field of digital image processing. The method is used for improving the coefficient sparseness and the estimation performance by utilizing the pixel sequencing and the non-convex norm constraint in image blocks. According to the method, firstly, a target image block is extracted from an MRI image, and then a sequencing training model based on image blocks is built. Meanwhile, a reconstruction model of the MRI image is built according to the coefficient non-convex constraint. After that, an alternate direction method is adopted to iteratively solve a sequencing matrix and a sparse coefficient in the model. Based on the estimated sparse coefficient, a final MRI image is reconstructed. According to the method, through sequencing pixels in the image blocks, the performance of the sparse transformation is improved. Meanwhile, the non-convex norm minimization constraint is carried out on coefficients, so that estimated coefficients are closer to real coefficients. Based on the method of the invention, the overall effect of reconstructed images is better and the detail information is richer. Meanwhile, the reconstitution accuracy is higher. Therefore, the method can be used for reconstructing MRI images.
Owner:成都国一科技有限公司

Battery module

The invention relates to the technical field of power batteries, in particular to a battery module. The battery module comprises a module framework and a battery pack which is arranged in the modularframework and formed by arranging single batteries and further comprises a temperature adjusting component for heating and / or cooling the battery pack; and an installation hole is formed in the bottomof the module framework, the bottom of the battery pack is exposed in the installation hole, and the temperature adjusting component is arranged in the installation hole and arranged on the bottom face of the battery pack in an attached mode. Due to the fact that the installation hole is formed in the bottom of the module framework, technical staff can directly arrange the temperature adjusting component in the installation hole in the attached mode; due to the fact that the module framework can support the battery pack, the technical staff do not need to arrange a bottom plate forming complete closure on the overall bottom face of the battery module; and due to the fact that the temperature adjusting component directly makes contact with the bottom of the battery pack, the heat conducting loss is reduced, assembly parts of the overall battery module are reduced, and therefore the battery module is lighter and good in heating or cooling effect.
Owner:CHINA AVIATION LITHIUM BATTERY LUOYANG +1

H-shaped steel bone-confined concrete column with round steel draw bars and fabrication method of column

InactiveCN103924740AReduce own overhangConstrained buckling deformationStrutsPillarsUltimate tensile strengthElastic plastic deformation
The invention relates to a steel bone concrete column, and particularly relates to an H-shaped steel bone-confined concrete column with round steel draw bars. The H-shaped steel bone-confined concrete column with the round steel draw bars comprises an H-shaped steel bone, the round steel draw bars, longitudinal reinforcement, a composite stirrup and concrete, wherein the round steel draw bars are connected with two flanges, at the outer sides of the flanges and near the free edges, of the H-shaped steel bone through bolts, so that the free extension length of each flange is effectively reduced, buckling deformation of the flanges is constrained, and meanwhile, the inspection capability of internal concrete of the steel bone is enhanced by existence of the round steel draw bars. The round steel draw bars are arranged at intervals, and the internal part of the steel bone is communicated with external concrete in series, so that the pouring quality of the concrete is ensured. Therefore, the concrete disclosed by the invention has the relatively high strength and the good elastic-plastic deformation capacity, and the formed steel bone concrete column has the relatively high bearing capacity, ductility and energy-dissipating capacity.
Owner:BEIJING UNIV OF TECH

Vehicle passenger seat restraint

A multi-point seat restraint system configured to provide restraint for a passenger superposed a seat in a supine position. The multi-point seat restraint system includes a plurality of upper belts having a first end anchored behind the seat back of the associated seat. A junction bar is further included wherein the junction bar is configured to releasably secure the upper belts proximate the second end of the plurality of upper belts. The junction bar further includes a first belt portion and a second belt portion integrally secured thereto. The first belt portion and second belt portion and configured to be releasably secured to a first lower belt and a second lower belt. The first lower belt and second lower belt are retractably mounted to the floorboard of the vehicle. In an alternative embodiment of the second lower belt, the second lower belt includes a first portion and a second portion being angularly mounted.
Owner:MCBRIDE TERRI

Training method of deep convolutional neural network for face recognition

The invention discloses a training method of a deep convolutional neural network for face recognition. The method comprises the following steps: 1) preparing a face image data set, dividing the face image data set into a training set and a verification set, and selecting the type, the structure, the hyper-parameter and the magnitude of a deep convolutional neural network model according to the scale and the complexity of the training set and the performance index of face recognition which should be achieved; 2) extracting features of face pictures input by the training set by using the model,and taking the features as input in the step 3); 3) constructing a loss layer, and iteratively calculating a loss value for the training; 4) comparing the loss value calculated in the step 3) with a preset threshold value, judging whether training is stopped or the gradient is calculated, and updating model parameters; and 5) verifying the model performance, and determining whether to stop training. According to the method, the human face features can be constrained by using a multivariate acting force from two aspects of an Euclidean space and an angle space during training, so that the deepconvolutional neural network model can learn the human face features with higher discrimination and robustness.
Owner:SOUTH CHINA UNIV OF TECH +1

Connectable rod system for driving downhole pumps for oil field installations

Improved sucker rod joints for down hole petroleum pumping applications are provided within the form factor of standard API sucker rods, such that existing inventory in suitable condition is fully usable in more demanding applications. The pin ends are selected or processed such as to provide preselected axial distance between a flat pin end and at least one reference surface, such as a threaded region or reference shoulder or both. The coupler is dimensioned such that the pin ends are in abutment either with each other or with opposite sides of an intervening torque washer in the central region, when the connection is made to a selected level of thread engagement. Furthermore, the engagement is such as to put the pin ends in compression and the coextensive length of coupler in tension. This increases frictional restraints and locks the elements together to resist fatigue failure upon cycling and to insure together with an anaerobic adhesive sealant, against back threading. This arrangement enables standard quality sucker rods to be employed in a configuration which is mechanically secure and highly resistant to tensile, bending and torsional forces, thus assuring a greater strength at the joint than in the rod itself, and resisting the effects of material fatigue arising from long term and stressful cycling operations.
Owner:CARSTENSEN KENNETH J

Domestic garbage incinerated ash and mixed soil composite reinforced subgrade and construction method thereof

The invention discloses a domestic garbage incinerated ash and mixed soil composite reinforced subgrade. The domestic garbage incinerated ash and mixed soil composite reinforced subgrade comprises a foundation layer, a subgrade layer paved on the top surface of the foundation layer and a road surface layer paved on the top surface of the subgrade layer, wherein the subgrade layer comprises a subgrade base body and a plurality of layers of reinforced structure layers; the subgrade base body is prepared from compacted filler and the filler is mainly prepared by mixing domestic garbage incinerated ash and clay; the reinforced structure layers are paved in the subgrade base body at intervals from bottom to top; the reinforced structure layer on the topmost layer is located on the bottom surface of the road surface layer; each reinforced structure layer is mainly composed of a geogrid and a geocell fixed at the top of the geogrid. According to the domestic garbage incinerated ash and mixedsoil composite reinforced subgrade disclosed by the invention, the urban domestic garbage incinerated ash is used as a filler component to be applied to subgrade construction, so that the environmentpollution is reduced, the land occupation problem caused by accumulation of garbage ash is alleviated and a novel way is provided for harmless and reclamation treatment on the ash; the domestic garbage incinerated ash and mixed soil composite reinforced subgrade disclosed by the invention has excellent strength and rigidity.
Owner:HUBEI UNIV OF TECH

Method for producing anti-pilling and antistatic cashmere sweaters

The invention discloses a method for producing anti-pilling and antistatic cashmere sweaters, which comprises the following steps of: blending cashmeres with milk protein fibers according to a mass ratio of (5:1)-(5:2), wherein in the step of twisting, the single twist of a cashmere blended yarn is 520-550 twists / m, and the direction of twist faces a Z twist; in the step of two-for-one twisting, the ply twist of the cashmere blended yarn is 360-380 twists / m, and the direction of twist faces a S twist; and the ratio of the single twist to the ply twist is 0.32-0.47; and then, carrying out weaving, sweater forming, antistatic finishing steps so as to obtain an anti-pilling cashmere sweater. The cashmere sweater prepared by using the method disclosed by the invention is not pilled after being used for a long time, and has an excellent antistatic function, therefore, the service life of the cashmere sweater is long.
Owner:KUNSHAN CITY ZHOUSHI FEIHUANG GARMENT FACTORY
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