31results about How to "Guaranteed permanence" patented technology

The invention provides an electronic evidence obtaining device and method based on a block chain in an Internet-of-Vehicles environment. The method comprises the following steps of S10, offline registration, S20, vehicle online identity registration, S30, real-time evidence storage and S40, query and evidence obtaining. According to the electronic evidence obtaining device and method based on theblock chain in the Internet-of-Vehicles environment, the block chain technology is used for traffic accident electronic evidence obtaining, the integrity, non-repudiation and permanence of evidence are guaranteed through the characteristics of block chain distributed data storage and the like, many problems of traditional traffic accident evidence obtaining are solved, and the evidence obtaining efficiency is high.

The invention discloses a color smoking treatment technology for a wood modification face layer. The color smoking treatment technology comprises the specific steps that firstly, to-be-treated wood is stacked and is blown through hot air; secondly, a layer of alcohol is brushed on the surface of the wood, cleaning is conducted through a sodium carbonate solution, then thorough scrubbing is conducted through water, and the wood modification face layer is obtained; thirdly, the overall wood is immersed in a phosphoric acid solution and taken out to be aired dry; fourthly, the wood is subjected to smoking, and the wood is subjected to further baking smoking through fuel materials; fifthly, the wood is placed in a heat treatment box to be tidily placed, rapid temperature rising is conducted, vacuum pumping is carried out, then slow temperature rising is conducted, and drying is conducted till absolute dry is achieved; sixthly, the surface of the wood subjected to heat treatment is wiped thoroughly through water; seventhly, the surface of the modification face layer is coated with a wood modification agent; and eighthly, the surface of the wood modification agent is coated with a layer of protective paint again. According to the color smoking treatment technology, physical treatment and oil paint treatment are combined, the permanency of the wood color is guaranteed, the wood waterproofness is guaranteed as well, and the wood is free of toxicity, environment-friendly, safe and sanitary.

The invention discloses a foggy weather visibility identification method and system under a complex background. The method comprises the following steps: acquiring a real foggy weather picture data set; establishing an end-to-end convolutional neural network model, performing training and region calibration on the input foggy day picture data set, and outputting a transmissivity graph; optimizingthe transmissivity graph by using a guided filtering method to obtain a refined transmissivity graph; estimating an atmospheric scattering coefficient according to the transmissivity graph; and solving a regional average atmospheric scattering coefficient, and carrying out grade identification on the foggy day picture. The method is suitable for foggy day visibility identification under a complexbackground in the fields such as meteorological stations, highways, tourist attractions, alpine regions and complex riverways; to a certain extent, no manual judgment is required, the limitation thattraditional manual observation needs expensive hardware equipment such as visibility meters is broken through, and compared with highway foggy weather visibility judgment, the method is wide in application range.

The invention provides elastic knitted fabric, and solves problems in existing elastic knitted fabric that spandex is easily aged after multiple times of stretching because the spandex is added, so that fabric elasticity is greatly lost, and a plush structure can be obtained only through napping raising treatment, fabric processing procedures and processing cost are increased. A fabric rough blankof the fabric is formed by interweaving a high F-number yarn and an elastic shrinking yarn, or formed by co-interweaving the high F-number yarn, a common yarn and the elastic shrinking yarn. The highF-number yarn is a yarn of which a D / F range is within 0.5-1.6. The elastic shrinking yarn is a PTT / PET blending filament or a PBT / PET blending filament. The fabric rough blank is shrunk on the surface of an inner layer after dyed so as to form naps. In addition, the invention further provides a preparation method for the fabric.

The invention discloses a metadata proposal suitable for permanently filing and using network academic resources, and belongs to the technical field of information storage and retrieval. Aiming at the characteristics of the network academic resources, the proposal extends the Dublin core metadata set, introduces eight key extension elements, such as a resource type, an organization, a set name, and the like, and can effectively support the disclosure, the storage and the retrieval of the network academic resources.

The invention discloses an exploitation method for geothermal energy in a salt mineral deposit. The exploitation method includes the following steps that (1), one or more pairs of horizontal abutting-joint wells are drilled in the salt mineral deposit; (2), a continuous screen pipe is placed in the horizontal wells and used for preventing horizontal well sections from being closed due to plastic deformation; (3), saturated salt water or other insoluble salt liquid are injected into a salt layer through a liquid injecting well, flow to a liquid outlet well through the horizontal wells, then flow to a geothermal conversion device and is injected into the liquid injection well again, and the circulation is performed continuously. The exploitation method has the advantages that the dissolvability characteristic of the salt mineral deposit is used, a sizeable channel can be constructed underground, compared with an existing method in the background technology, the exploitation method has sufficient heat exchange space, and therefore heat exchange efficiency is higher.

The invention belongs to the technical field of power transmission and transformation project autonomous design, and provides a power transmission and transformation project intelligent autonomous design platform and a working method thereof. The platform comprises a basic data database, a design node, a design result overall evaluation module and a design result output module; wherein the basic data database is used for realizing management application of data required by intelligent autonomous design of the power transmission and transformation project; wherein the design nodes refer to anyone design task and evaluation link thereof in a power transmission line design project and a transformer substation design project, the design result overall evaluation module realizes overall evaluation of the design result of the current power transmission and transformation design project, and the design result output module mainly realizes output of the design result. According to the method,the design quality of the power transmission and transformation project can be effectively improved, the objectivity and accuracy of design quality evaluation are ensured, repeated work in the powertransmission and transformation project design can be avoided, the investment of human resources is reduced, design funds are saved, and the design efficiency and quality are greatly improved.

The invention provides a grading cement pouring device. The grading cement pouring device comprises a body, a hole closing sleeve and a fixing sleeve, wherein a lower connector is connected to the lower end of the body; a plurality of circulating holes are circumferentially formed in the body; the hole closing sleeve is inserted into the body through a first shearing pin; the hole closing sleeve is positioned above the circulating holes; a hole closing base is inserted into the inner side of the upper end of the hole closing sleeve; the fixing sleeve is inserted into the lower connector; a hole opening sleeve is interlayered between the upper end of the fixing sleeve and the lower end of the hole closing sleeve; the hole opening sleeve is connected to the fixing sleeve through a second shearing pin. The grading cement pouring device can smoothly achieve opening or closing of the holes to ensure smoothness of a well-cementing operation, is simple in structure and easy to manufacture, thereby reducing the manufacturing cost, and is conveniently used on a site.

The invention provides an automatic reversing liquid phase injection pump. The automatic reversing liquid phase injection pump comprises a pump, a frame, a shifting seat, a reversing stepping motor, a guiding shaft, a driving screw, an anti-backlash nut assembly, a linear bearing, a syringe connection screw, a linear driving stepping motor, a synchronous pulley with safe edges, a synchronous belt, a synchronous pulley without safe edges, a syringe and a control unit. The automatic reversing liquid phase injection pump can guarantee permanent precision cooperation with a screw to realize continuous constant transmission precision so that liquid transmission stability and sensitivity are greatly improved, regular replacement of a screw nut is avoided and a use cost is reduced. Through the guiding shaft parallel to the screw, linearity and smoothness of shifting seat linear movement are guaranteed. The automatic reversing liquid phase injection pump has a compact structure and a high automation degree, realizes high precision, stable and pulseless liquid transmission and is an ideal matching device for medical and laboratorial microscale transfusion.

Disclosed is a lower shaft support device for a sewing machine. The present invention relates to a lower shaft support device for a sewing machine, wherein a main body of the sewing machine has an upper portion which comprises an angle arm and a lower portion which comprises a bed, an upper shaft is installed along the angle arm for vertically moving a lockstitch needle on the main body, and a lower shaft is installed on and supported by the main body of the sewing machine so as to be linked to the upper shaft. The lower shaft support device comprises: at least one cast bushing, which is formed on the bed, so that the lower shaft can be installed along the bed; a hole which penetrates the cast bushing; and a fixing part which penetrates through the hole to rotatably support the two ends of the lower shaft with respect to the bed, wherein the lower shaft of the sewing machine is directly supported by the fixing part through a simple operation using the cast bushing that is integrally formed with the bed, without having to be supported by a separate bearing metal bush.

The invention provides a method and a device for guaranteeing database modification permanency. The method for ensuring the permanent modification of the hardware database comprises the following steps of: under the condition that the transaction state of the latest first transaction recorded in the log of the hardware database is execution completion, comparing the log of the hardware database with an external log used for recording a submitted transaction to obtain a record of a second transaction which exists in the external log used for recording the submitted transaction but does not exist in the log of the hardware database; recording the record content of the second transaction read from the log for recording the submitted transaction in the log of the hardware database, and recording the transaction state of the second transaction in the log of the hardware database according to the condition that the hardware database executes the second transaction; wherein the second transaction comprises data modification. By means of the method, it can be ensured that the log recording condition of the database is consistent with the execution condition of the database, and therefore permanence of database modification is ensured.

The invention provides a stage cementer. The stage cementer comprises a body, a hole closing sleeve and a hole opening sleeve, wherein the lower end of the body is connected with a lower inner sleeve; the body is provided with a plurality of circulation holes along the circumferential direction; the hole closing sleeve is connected into the body through a first shear pin in a penetrating manner and is positioned above the plural circulation holes; the inner side of the upper end of the hole closing sleeve is connected with an inner core in the penetrating manner; the hole opening sleeve is arranged in the body in the penetrating manner; the upper end of the hole opening sleeve is in hermetical contact with the lower end of the hole closing sleeve, and the lower end of the hole opening sleeve is connected to the lower inner sleeve through a second shear pin. According to the stage cementer, hole opening or hole closing of the stage cementer can be safely and smoothly realized, and smooth cementing operation is guaranteed; the stage cementer has a simple structure and is easy to machine, the production and manufacturing cost is reduced, and the field use is convenient.

The invention relates to the technical field of sizing collars, in particular to a ball-casting hydraulic sizing collar, which comprises a mandrel, an outer tube, an upper connector and a lower connector; the outer side of the upper end of the mandrel and the inner side of the upper end of the outer tube are respectively and fixedly mounted with the inner side and the outer side of the lower part of the upper connector; the outer side of the lower end of the mandrel and the inner side of the lower end of the outer tube are respectively and fixedly mounted with the inner side and the outer side of the upper part of the lower connector; and an annular isolated cavity is formed among the mandrel, the outer tube, the upper connector and the lower connector, and an upper spacing sleeve and a lower spacing sleeve which can move downward are installed in the isolated cavity from top to bottom. The ball-casting hydraulic sizing collar provided by the invention has a reasonable and compact structure and is convenient to use; the safe and effective operation of hole opening and hole closing of the ball-casting hydraulic sizing collar can be guaranteed by way of ball-casting hydraulic pressure, so as to guarantee the effective implementation of downhole operations of well cementation and completion; meanwhile, due to the self-locking function of an inverted-tooth ring, the upper spacing sleeve during downward moving can be prevented from moving upward, so as to guarantee the permanence of the hole closing operation.

The invention provides a biaxially oriented polyketone co-extruded barrier film and a preparation method thereof, wherein the biaxially oriented polyketone co-extruded barrier film comprises a polyamide outer layer, a first polyketone composite material layer, and a polyamide antibacterial core layer, the second polyketone composite material layer, polyamide inner surface layer; the components of the first polyketone composite material layer and the second polyketone composite material layer include: polyketone resin 45%~71.5%, semi-aromatic Family polyamide MXD6 15% to 30%, compatibilizer 3% to 8%, polyacrylic acid 10% to 15%, lubricant 0.5% to 2%. The biaxially oriented polyketone co-extruded barrier film has excellent barrier properties and puncture resistance, and is suitable for high-temperature cooking and boiling, and low-temperature refrigeration for flexible packaging.

The invention provides an elastic knitted fabric, which can solve the problem that the spandex in the existing elastic knitted fabric is easily aged after being stretched for many times, resulting in a great loss of fabric elasticity, and the plush needs to be obtained through napping treatment. The structure increases the problems of fabric processing procedures and processing costs. The fabric blank of the fabric is interwoven with high F-number yarns and elastic shrinkage yarns, or is interwoven with high F-number yarns, ordinary yarns and elastic shrinkage yarns, and the high F-number yarns are in the D / F range For yarns between 0.5 and 1.6, the elastic shrinkage yarn is PTT / PET blended filament or PBT / PET blended filament, and the fabric blank shrinks to form fluff on the surface of the inner layer after being dyed. At the same time, the invention also provides a preparation method of the fabric.

A security diagnosis service system for smart grid equipment based on blockchain technology, including three participants: faulty equipment, original and non-original suppliers of equipment, and smartphones owned by users. When the faulty device is within the warranty period, the original supplier node will provide free diagnostic services for it. Otherwise, the maintenance and diagnosis rights of the equipment will be decided by the original supplier node and non-original supplier nodes through the decentralized equipment security diagnosis smart contract. According to the bidding price and reputation value of the responding node, the contract uses a multi-dimensional reverse auction method to determine the successful bidding node and diagnosis price. After the device diagnosis is completed, the relevant diagnostic information will be packaged and sent to the smart phone. The user will formulate the device operation policy and control the smart contract through the smart phone and according to the received message, so as to realize the efficient operation of the device. In the process of information interaction, a homomorphic encryption algorithm is used to ensure the security of the interactive information, and to ensure that the diagnostic information and the privacy of both parties will not be leaked during the interaction.

The invention provides a stage cementer. The stage cementer comprises a body, a hole closing sleeve and a hole opening sleeve, wherein the lower end of the body is connected with a lower inner sleeve; the body is provided with a plurality of circulation holes along the circumferential direction; the hole closing sleeve is connected into the body through a first shear pin in a penetrating manner and is positioned above the plural circulation holes; the inner side of the upper end of the hole closing sleeve is connected with an inner core in the penetrating manner; the hole opening sleeve is arranged in the body in the penetrating manner; the upper end of the hole opening sleeve is in hermetical contact with the lower end of the hole closing sleeve, and the lower end of the hole opening sleeve is connected to the lower inner sleeve through a second shear pin. According to the stage cementer, hole opening or hole closing of the stage cementer can be safely and smoothly realized, and smooth cementing operation is guaranteed; the stage cementer has a simple structure and is easy to machine, the production and manufacturing cost is reduced, and the field use is convenient.

The invention relates to a biomass particle hot-blast furnace which comprises a furnace body, wherein the furnace body is sequentially provided with a fire box, a flue connecting pipe, a sieve-plate heat exchange plate, heat-conducting plates and a furnace shell from inside to outside; and the lower part of the fire box is provided with a hearth; the outer wall of the hearth is a sieve-plate structure; the upper part of a furnace chamber formed by the heat-conducting plates is provided with a heat air inlet; an air inlet plate is arranged below the heat air inlet; and an outlet of the flue connecting pipe is connected with a deduster. The biomass particle hot-blast furnace has the advantages of high efficiency, environment friendliness, low carbon, low consumption, time saving, labor saving, low cost, long service life, high temperature control precision and high heat recovery rate (up to 80%), and can save the coal amount by 30% and save the firewood amount by 40%.

The invention discloses a fiber composite material container main body part and a manufacturing method thereof, the container main body part takes high-performance fibers as raw materials, and adopts a weaving method that multiple types of high-performance fiber yarns are horizontally and linearly arranged in multiple layers at angles of 00, 900, + 450 and-450 and longitudinally bundled into a whole, or adopts X-axial, Y-axial or Z-axial orthogonal structure weaving, or adopts an X-axial, Y-axial or Z-axial orthogonal structure weaving, or adopts an X-axial, Y-axial or Z-axial orthogonal structure weaving. And carrying out heat setting, dipping and coating of a polytetrafluoroethylene emulsion, molding, and heating and curing to prepare the composite material. The container main body component is balanced in load bearing, has high bearing capacity and bearing strength, can reduce the dead weight of the container, reduces the transportation cost, and effectively meets the development requirement of light weight of the container.

The invention discloses a color smoking treatment technology for a wood modification face layer. The color smoking treatment technology comprises the specific steps that firstly, to-be-treated wood is stacked and is blown through hot air; secondly, a layer of alcohol is brushed on the surface of the wood, cleaning is conducted through a sodium carbonate solution, then thorough scrubbing is conducted through water, and the wood modification face layer is obtained; thirdly, the overall wood is immersed in a phosphoric acid solution and taken out to be aired dry; fourthly, the wood is subjected to smoking, and the wood is subjected to further baking smoking through fuel materials; fifthly, the wood is placed in a heat treatment box to be tidily placed, rapid temperature rising is conducted, vacuum pumping is carried out, then slow temperature rising is conducted, and drying is conducted till absolute dry is achieved; sixthly, the surface of the wood subjected to heat treatment is wiped thoroughly through water; seventhly, the surface of the modification face layer is coated with a wood modification agent; and eighthly, the surface of the wood modification agent is coated with a layer of protective paint again. According to the color smoking treatment technology, physical treatment and oil paint treatment are combined, the permanency of the wood color is guaranteed, the wood waterproofness is guaranteed as well, and the wood is free of toxicity, environment-friendly, safe and sanitary.

The invention relates to a cooling structure of a permanent magnet motor. The cooling structure comprises a motor shell. In the motor shell, a protective wind-suction plate is positioned at the tail end of the motor shell and plays a role in sucking surrounding cooling air and preventing foreign matters from entering the motor shell; two entrance flow-deflectors are respectively positioned at front and back ends of the motor shell with one entrance flow-deflector positioned at the inner side of the protective wind-suction plate and the other entrance flow-deflector used for sucking cooling air around the motor; a side air-outlet is positioned at one side of the motor shell and is used for discharging heat inside the shell by the use of wind pressure generated in a channel of the motor shell out of the side air-outlet; an air outlet is positioned at the bottom of the motor shell and is used for discharging heat inside the motor shell under the action of wind pressure to ambient air; an annular retainer ring is positioned at the middle position of the motor shell and is used for isolating air mixed-flow between the front and back ends of the motor shell so as to prevent wind pressure from being not generated and reduce airflow loss; and two rotating-parts cover plates are positioned between the two entrance flow-deflectors and are used for fixing a rotor, wherein the two rotating-parts cover plates and fan blades form an integrated structure.

The invention provides a method and a device for guaranteeing database modification permanency. The method for ensuring the permanent modification of the hardware database comprises the following steps of: under the condition that the transaction state of the latest first transaction recorded in the log of the hardware database is execution completion, comparing the log of the hardware database with an external log used for recording a submitted transaction to obtain a record of a second transaction which exists in the external log used for recording the submitted transaction but does not exist in the log of the hardware database; recording the record content of the second transaction read from the log for recording the submitted transaction in the log of the hardware database, and recording the transaction state of the second transaction in the log of the hardware database according to the condition that the hardware database executes the second transaction; wherein the second transaction comprises data modification. By means of the method, it can be ensured that the log recording condition of the database is consistent with the execution condition of the database, and therefore permanence of database modification is ensured.

The invention discloses a crowdsourcing test intellectual property management system and decomposition, uplink and verification methods in the field of crowdsourcing test, and aims to solve the technical problem that a crowdsourcing test platform in the prior art cannot effectively guarantee intellectual property data security. The system comprises a server used for collecting crowdsourcing test intellectual property data and uploading the data to an interstellar file system, generating an uplink data model according to the crowdsourcing test intellectual property data and transferring the uplink data model to an alliance chain system, and collecting off-chain intellectual property data provided by a user and transferring the off-chain intellectual property data to the alliance chain system; and an interstellar file system which is used for storing crowdsourcing test intellectual property data. Through the alliance chain and interstellar file system technology, the crowdsourcing test intellectual property data is stored in the interstellar file system, and the user identity is verified by using the alliance chain system, so that the ownership ownership of the crowdsourcing test intellectual property can be confirmed at the first time, and the intellectual property can be safely guaranteed.

In a rain season, rainwater often floods roads, i.e. waterlogged highways are formed, and if waterlogging occurs in a street, a waterlogged street is formed. Traffic jam is formed by waterlogging, serious inconvenience is caused to the traffic of various kinds of vehicles and pedestrians, and electric shock accidents can be caused by waterlogging. The invention relates to an anti-waterlogging manhole cover, which effectively solves the problem. The anti-waterlogging manhole cover is composed of an outer frame bracket, a voltage-controlled manhole cover, a central ball column, a connecting plate, a barrel connecting plate, a transverse plate, a magnetic control bucket, a permanent magnet, a washer, a washer spring and the like. Leaves and the like can be blocked above, and fine sands can beshaken to flow, so that water flow is prevented from being blocked by the fine sands.

Disclosed is a lower shaft support device for a sewing machine. The present invention relates to a lower shaft support device for a sewing machine, wherein a main body of the sewing machine has an upper portion which comprises an angle arm and a lower portion which comprises a bed, an upper shaft is installed along the angle arm for vertically moving a lockstitch needle on the main body, and a lower shaft is installed on and supported by the main body of the sewing machine so as to be linked to the upper shaft. The lower shaft support device comprises: at least one cast bushing, which is formed on the bed, so that the lower shaft can be installed along the bed; a hole which penetrates the cast bushing; and a fixing part which penetrates through the hole to rotatably support the two ends of the lower shaft with respect to the bed, wherein the lower shaft of the sewing machine is directly supported by the fixing part through a simple operation using the cast bushing that is integrally formed with the bed, without having to be supported by a separate bearing metal bush.

The invention discloses a method and device for recording information of a manually filled paper form. The method comprises the following steps of: acquiring data, namely acquiring written information during filling of a paper form by a user and determining each piece of pixel information of a display region corresponding to the form according to the written information; acquiring an electronic form, namely acquiring type of the form and acquiring a blank electronic form of the form from a previously established form database according to the type of the form; and synthesizing, namely synthesizing the blank electronic form and each piece of pixel information of the display region corresponding to the form so as to generate an electronic form copy corresponding to the paper form filled by the user. In the invention, the electronic copy of the form filled by the user is acquired by digitalizing the information manually filled by the user, so that the original appearance of the manually filled form can be completely and effectively stored, authenticity and validity of the form are guaranteed, signature and filling of the form are not limited to time and space any longer, and the method and the device have extremely high social benefit and economic benefit.

The invention discloses a logistics document archiving method and system based on a block chain and an interstellar file system, and relates to the technical field of block chains. The method comprises the steps of recording a logistics document circulation process and a logistics document state through a logistics platform management system; constructing an interstellar file system IPFS for storing logistics documents; determining an interface standard of an IPFS and a logistics platform management system; signing a logistics receipt through an API interface and archiving the logistics receipt to an IPFS after a logistics document is finally confirmed through the logistics platform management system; andrandomly storingthe interstellar file system IPFS the plurality of small file blocks in an IPFS node and correspondingly generating a unique hash table. Through encryption and timestamp characteristics based on a block chain technology, tamper resistance and credibility of logistics document transmission and final archiving can be ensured; the IPFS interstellar file system is based on hash encryption, P2P protocols and other technologies, can guarantee the permanence of logistics document archiving, guarantees low storage cost, and is more effective in retrieval.

The invention discloses a totally-sealed magnetic-traction steam hand-operated valve, which consists of two main parts, namely a valve main body and a magnetic tractor. The totally-sealed magnetic-traction steam hand-operated valve mainly has the advantages that: a gap between a static valve body and a rotating valve shaft is sealed, and the valve is opened and closed by utilizing the attractive force of a magnet in the state that inside is isolated from outside, so that the effect of never leakage between the valve body and the valve shaft is achieved.

The invention discloses an integrated intelligent management and control system for vegetable input products, and relates to the technical field of agriculture. A management and control platform in the system obtains identity information of a user entering an input product warehouse through a warehouse entrance guard installed at an entrance of the input product warehouse and performs identity verification; when the identity verification is passed, an entrance of the input product warehouse is opened, and a warehouse camera is activated to collect a video stream of an activity process of the user in the input product warehouse; and a management and control platform identifies an input product receiving behavior of the user from the video stream based on a pre-trained and stored input product receiving behavior detection model, generates a corresponding input product receiving record and user identity information, and correspondingly stores the input product receiving record and the user identity information in a management database. According to the system, the information technology and the artificial intelligence technology are effectively combined, a real and effective input product receiving record can be automatically formed in a non-perceptual, automatic and traceable manner in the whole process from entering a warehouse to receiving of input product users, and an input product management party is helped to carry out convenient and reliable management.