34results about How to "Simplify technical difficulty" patented technology

The invention relates to a short-section temporary gob-side entry retaining method which comprises the following steps: step 1, prefabricating a high-strength concrete block on the ground for reservation; step 2, forming a rectangular notch on a working surface coal wall at the side of an air inlet entry and carrying out the anchor rod (cable) support to a top plate; step 3, transporting the high-strength concrete block to the position of an entry retaining and establishing an entry-side wall body with the high-strength concrete block on the edge of a gob, so that the air inlet entry behind the working surface forms a gob-side entry retaining; step 4, constructing and establishing a closed wall at the position 1-2 m away from the rear part of a return air contact entry to seal the gob-side entry retaining and the return air contact entry and ensuring that the length of the gob-side entry retaining entry does not exceed the spacing of the contact entry; and step 5, carrying out repeated operation according to the steps (2)-(4) in the recovery process of the working surface. The short-section temporary gob-side entry retaining method greatly simplifies the technical difficulty of the entry remaining, provides the extraction space for the gas control, reduces the entry tunneling quantity, greatly reduces the preparation time of the working surface and avoids the later entry maintenance work required by the prior gob-side entry retaining.

The invention discloses a fuel transmission-distribution sealing module safe conveying system of a dual fuel power fishing vessel. The system comprises an adsorption gas recycle sealing unit, a control unit and a gas storage and supply sealing unit, a gas interlock sealing unit, a gas reduced pressure sealing unit and a gas jet sealing unit which are connected by a hollow ventilated gas conveying pipe in sequence and are sealed by a bearing sealing box respectively, wherein the residual air discharge end of the gas interlock sealing unit is connected with the gas suction end of the adsorption gas recycle sealing unit through gas circuit; the output end of the gas jet sealing unit is connected with an engine through the hollow ventilated gas conveying pipe; the signal input end of the control unit is electrically connected with the signal output ends of the gas storage and supply sealing unit, the gas interlock sealing unit, the gas reduced pressure sealing unit, the gas jet sealing unit and the engine; the signal output end of the control unit is electrically connected with the signal input ends of the gas interlock sealing unit, the gas reduced pressure sealing unit and the gas jet sealing unit. The fuel transmission-distribution sealing module safe conveying system is intuitive, concise and clear and definite, and the intrinsic safety type is realized conveniently.

The invention discloses a one-station multi-machine unmanned aerial vehicle plant protection operation control method. The method comprises the following steps that (1) operation tasks are uploaded, wherein the operation tasks comprise land parcel information and to-be-operated unmanned aerial vehicle information; (2) a background processing center generates a planning route and sends the planningroute to a mobile control terminal to confirm; (3) the background processing center generates an operation route according to the confirmed planning route and sends the operation route to a corresponding unmanned aerial vehicle, wherein the operation route comprises a take-off auxiliary point, an operation waypoint and a return auxiliary point; and (4) the unmanned aerial vehicle carries out operation and uploads operation data to the background processing center, and the background processing center records operation flight information in real time, and computes a completion rate of the operation tasks in real time. According to the method, a problem of data sharing of the unmanned aerial vehicle is solved; and the unmanned aerial vehicles do not directly communicate with each other, theinformation is forwarded by a server, and the computing burden of the unmanned aerial vehicle is reduced.

A movable cantilever structure of a magnetic suspension train comprises a C-type cantilever support. The upper portion of the cantilever is rotationally connected with a suspension support frame through a vertical rotating shaft. The lower portion of the cantilever is rotationally connected with an electromagnet installing arm through a horizontal rotating shaft. The horizontal rotating shaft is perpendicular to the electromagnet installing arm. The two sides of the C-type cantilever support are provided with a pair of transverse dampers and a pair of longitudinal dampers. The two ends of each transverse damper are respectively connected with the C-type cantilever support and the suspension support frame. The two ends of each longitudinal damper are respectively connected with the C-type cantilever support and the electromagnet installing arm. The movable cantilever structure of the magnetic suspension train enables single-cantilever control to be achieved and greatly simplifies the complexity and the technical difficulty of the mechanical decoupling of a suspension support of the prior magnetic suspension vehicle. The parameter matching of dampers arranged on drawbars are simplified and singularized. The ramp through capacity and the curve passage capacity of the suspension support are improved. The flexibility, the reliability and the safety are improved. The movable cantilever structure of the magnetic suspension train is significant in promoting the engineering of magnetic suspension technology and rapidly achieving the commercialization of magnetic suspension vehicles.

The invention discloses an intelligent cargo detection system. The detection system comprises a cargo information acquisition unit, a switch and a cargo information detection unit. The detection method of the detection system comprises system calibration, information acquisition, point cloud data set generation, cargo pose information acquisition and the like. The detection system is simple in structure, easy to implement, free of limitation on the surface quality and the material of a detected object, high in applicability and wide in application range, and has the characteristics of being high in detection speed, good in compatibility, wide in application and low in cost.

A flame-retardant contractile anti-corrosion packaging film adopts a two-layer or three-layer structure, namely an inner layer containing a rust inhibitor which has an anti-corrosion and protection function for metal, and an intermediate layer and an outer layer respectively containing a fire retarding agent with a flame-retardant function, wherein each layer contains plastic particles which has thermal contractile property. The film is formed in a way that all raw materials are subjected to heating, co-extrusion and blow molding on two-layer / three-layer co-extrusion film blowing equipment under a certain thermal condition according to a certain thickness proportion after being mixed according to certain types and proportion, and is a novel multifunctional metal anti-corrosion and protection packaging material. The packaging film has the characteristics of thermal contractile property, good rust protection property, skin packaging, good air tightness, tightness, flame retardancy, and convenience in automatic operation, is economical and practical, and can be extensively applied to the anti-corrosion and protection packaging for such products in storage and delivery periods as automobile components, machinery equipment, hardware tools, metallurgy products, aerospace, electronic equipment and weapons. Therefore, the packaging film is a bran-new material in the filed of metal protection packaging.

The invention, which belongs to the technical field of optical adjustment detection, discloses a cemented lens centering control method and system and full-automatic cementing equipment. A positioningjig, a centering jig and a to-be-cemented lens are installed on an air floating rotary table, the first surface of the cemented lens faces an autocollimator, the positioning jig is directly connectedwith the air floating rotary table, and the centering jig makes contact with the first face of the cemented lens; after the combination is finished, eccentricity measurement of the cemented lens is performed; a computer automatically controls the positions of the mobile autocollimator and a relay lens in the optical axis direction, finds the spherical center image of each surface, and then rotates the air floating rotary table to measure the reflection eccentricity of each surface; current positions of sphere centers of the second and third surfaces are calculated according to eccentric results of the second and third surfaces, and a straight line is made through the sphere centers; and the centering jig drives the first surface of the cemented lens to translate, the motion position of the first surface spherical center image is observed through the autocollimator until the first surface spherical center image coincides with the target position, and then centering is completed. The cementing centering precision is improved, and no technical requirement is needed for operators.

The invention discloses a novel reducing agent for repairing a contaminated site. The novel reducing agent is prepared from the following components in percentage by mass: 70 percent to 95 percent of micron iron powder and 5 percent to 30 percent of an auxiliary agent, wherein the auxiliary agent is prepared from the following components in percentage by mass: 45 percent of xanthan gum, 54 percent of waste molasses and 1 percent of acetic acid bacteria powder. The reducing agent can also be used for effectively avoiding deposition and agglomeration phenomena in a utilization process of the micron iron powder, and uniform dispersion degrees of the micron iron powder in a polluted soil body and a polluted water body are remarkably improved; an oxidation-reduction potential of a reaction system is greatly reduced, and the reduction removal rate of the micron iron powder on pollutants in the soil and underground water is remarkably improved; the potential of hydrogen of a balance reaction system can be effectively balanced; finally, efficient reduction and recovery of the pollutants in the soil and underground water is realized. Meanwhile, the invention further provides a preparation method of the reducing agent; the utilization rate of waste materials can be realized, the preparation cost is low and the operation is simple and easy.

A transparent plate assembly piece comprises a transparent panel and concave ribs and / or convex ribs, wherein the concave ribs and / or the convex ribs are arranged on the transparent panel. Through connecting of the concave ribs and the convex ribs, transparent assembly pieces of different structures and different numbers can be connected to form plate bodies of different structures and different thicknesses and with hollow cavities. The transparent assembly pieces are manufactured through a simple production device and technology correspondingly, manufacturing technological difficulty can be simplified, and the product quality can be ensured. In addition, products with more properties can be formed through combination, corresponding components can be manufactured through transparent plastic of more types according to the using conditions and environments, glass products can also be locally combined, a combination has extreme flexibility and excellent comprehensive properties.

A wind tunnel test device for aerodynamic dynamic derivative decoupling measurement disclosed by the present invention comprises a base station and an airplane model arranged on the base station, the upper end of the base station is fixedly connected with a mounting rack, and the base station is provided with a driving mechanism for driving the airplane model to lift. The driving mechanism comprises a servo motor fixedly connected to the upper end of the base table, an output shaft of the servo motor is fixedly connected with a rotating shaft, and the end, away from the servo motor, of the rotating shaft is fixedly connected with a rotating disc. The device is provided with the T-shaped frame and the crank, the data processing efficiency is effectively improved, the device can be used in the fields of aircraft pneumatic modeling, pneumatic model analysis, correction and verification, manufacturing of flight simulator data packets of various grades and the like, in addition, the device is simple and reliable in structure, the problem that dynamic derivatives are difficult to decouple after measurement in a coupling state can be effectively solved, and the reliability of the device is improved. And meanwhile, the workload and the technical difficulty in the pneumatic modeling process can be greatly reduced.

The embodiments of the present invention disclose a preparation method of a chip packaging module set and a packaging structure. The method includes the following steps that: a chip is provided, and a functional circuit is formed on the front surface of the chip; balls are planted on the back surface of the chip, so that formed solder balls are electrically connected with the functional circuit; the front surface of the chip is attached to a cover plate; a plastic packaging structure is formed at one side of the cover plate, wherein the one side of the cover plate is adjacent to the chip, and the plastic packaging structure covers the chip; and the solder balls and the plastic packaging structure are thinned, so that first pads can be formed. With the preparation method of the chip packaging module set and the packaging structure provided by the technical schemes of the invention adopted, packaging costs can be decreased, a process flow and technical difficulty can be can be simplified.

The invention discloses a sample purification and concentration device which comprises an end cover, a trough pipe, a filter membrane support, a filter membrane and a centrifugal pipe, a feed liquid runner is arranged on the inner side of the filter membrane support; the runner outlet is straight to the bottom, the trough pipe is provided with a sample accommodating cavity; a liquid outlet communicated with the sample accommodating cavity is formed outside the side of the trough pipe; the filter membrane is fixed on the outer side of the trough pipe and covers the liquid outlet, the filter membrane support is vertically or obliquely fixed on the trough pipe after being tightly attached to the filter membrane, then the filter membrane support and the trough pipe are sleeved into the centrifugal pipe together, and the end cover is tightly covered, the sample containing cavity, the filter membrane, the feed liquid flow channel and the centrifugal pipe are sequentially communicated to forma purification and concentration channel. The device is used for separating, cleaning, purifying, filtering, desalting and concentrating a sample under the action of driving force or centrifugal force; in the operation process, other media are not needed, other pipetting devices are not needed in the operation process, any sample loss is avoided, and a very small number of samples can be separated, purified, concentrated and the like.

A Scophthalmus maximus circulating water three-stage breeding method belongs to the technical field of aquaculture. According to the difference of an adaption character to the breeding environments, of the Scophthalmus maximus in different physiological stages, and the circulating water breeding process of the Scophthalmus maximus is divided into three stages; during the first stage, the initial stocking body weight of the Scophthalmus maximus is 2.5-5g; during the second stage, the initial stocking body weight of the Scophthalmus maximus is 60-75 g; and during the third stage, the initial stocking body weight of the Scophthalmus maximus is 160-180 g. the invention provides the optimal breeding intensity of the Scophthalmus maximus in a circulating water breeding system in different physiological stages, establishes a corresponding feeding strategy, a classification strategy, system operation parameters, and water quality conditions, and makes specific indicative factors and indexes atthe beginning and the ending of all the breeding stages clear; compared with the conventional breeding technologies, the method can scientifically improve an upper limit of the breeding intensity, can significantly improve the breeding production efficiency, can lower the diseases risk, can ensure safe breeding production, and can provide a novel and feasible technical scheme for industrial breeding of the Scophthalmus maximus.

The invention discloses a model conversion device and method supporting the separation of conversion engine and mapping rules. The device includes a model extractor, and further includes: a target platform manager, an agent rule manager, a mapping rule query engine, and a mapping rule library , mapping rule editor, mapping rule execution engine, script combiner, script interpreter and public data area; proxy rules pass model elements to the mapping rule query engine, and the mapping rule query engine queries the mapping rule base according to the model elements to obtain the model elements The corresponding mapping rules and proxy rules will then hand over the model elements and mapping rules to the mapping rule execution engine for processing; the mapping rule execution engine will send the processed target script file to the script combiner for merge processing to generate a target script file; script The interpreter interprets the target script file to generate the target model or code. The invention realizes the separation of the model transformation engine and the mapping rule.

A transflective LCD device and a method of forming the same are proposed. The transflective LCD includes a first substrate, a second substrate, a first alignment film, a second alignment film and a liquid crystal layer. The first substrate and the second substrate are divided into a transmissive area and a reflective area, in which areas of the first alignment film and the second alignment film are configured respectively by different aligning angles. The liquid crystal molecules in the liquid crystal layer corresponding to the transmissive area and the reflective area are tilted by different pretilt angles. Therefore, light going one-way through the liquid crystal layer corresponding to the transmissive area generates the same phase retardation as making a round-trip through the liquid crystal layer corresponding to the reflective area. The present invention can simplify technical difficulties, and reduce occurrences of poor rubbing and dark-state light leakage.

The invention discloses a paper barrel with an all-paper structure. The paper barrel comprises a paper upper cover, a paper barrel body and a paper bottom cover; the bottom end of the paper barrel body is fixedly connected with the paper bottom cover; and a concave edge is arranged at the periphery of the upper end of the paper barrel body and is matched with the lower edge of the paper upper cover. Compared with a traditional iron-hooped paper barrel, the paper barrel provided by the invention completely adopts a paper structure; iron and wooden parts are omitted, so that equipment such as a punch, a plate shearing machine, a spot welder or a seam welding machine is canceled; and therefore, from the aspect of equipment, energy consumption is reduced greatly, and noise is eliminated.

The invention discloses a derived program generating method. The derived program generating method comprises following steps: responding to a user operation instruction, and determining an original program installation package where a derived program needs to be generated; reversing the original installation package with an original package name into an installation package mirror image, configuring a new package name different from that of the original installation package for the mirror image and implanting a resetting module in the mirror image, wherein the resetting module is used for informing the process that the package name of itself is the original package name during the consultation of the process of the derived program; and performing repackaging and signing on the mirror image so as to form and store the derived program. In addition, the invention also discloses a derived process staying-resident method for describing the operation control technology of the derived program generated by the derived program generating method. According to the invention, a scheme that processes of an original program and a copy thereof stay resident simultaneously is achieved through a simpler technology; and on the premise of following an application program copyright control technology, a blockade on the technology of an Android system is broken and user experience is improved.

The invention provides a preparation method of hydroxylamine sulphate and devices used in the preparation method.The method includes the steps of calcium salt quenching and tempering, solution cooling, solution mixing, mixed solution PH value regulation and solution hydrolysis.Firstly, the PH value of a calcium salt solution or turbid liquid is regulated to 0.1-3.5 through acid; then, the calcium salt solution or the turbid liquid subjected to quenching and tempering and a solution containing nitrite are cooled to 10 DEG C or below respectively; the cooled calcium salt solution or the turbid liquid is mixed with the solution containing nitrite at the temperature of 10 DEG C or below; acid is added to the mixed solution to regulate the PH value of the solution to 0.1-3.5; finally, the solution or the turbid liquid is heated by 0.2-3 hours at a temperature smaller than 150 DEG C to obtain a solution containing hydroxylamine sulphate.The devices mainly include a calcium salt quenching and tempering cooling kettle, a disulfonate preparation reaction kettle and a hydrolysis reactor.The method is simple in process, mild in reaction condition and high in yield, and by-product resources obtained through coal-fired flue gas limestone wet desulphurization can be recycled and converted into hydroxylamine sulphate high in added value and wide in application range.

A transflective LCD device and a method of forming the same are proposed. The transflective LCD includes a first substrate, a second substrate, a first alignment film, a second alignment film and a liquid crystal layer. The first substrate and the second substrate are divided into a transmissive area and a reflective area, in which areas of the first alignment film and the second alignment film are configured respectively by different aligning angles. The liquid crystal molecules in the liquid crystal layer corresponding to the transmissive area and the reflective area are tilted by different pretilt angles. Therefore, light going one-way through the liquid crystal layer corresponding to the transmissive area generates the same phase retardation as making a round-trip through the liquid crystal layer corresponding to the reflective area. The present invention can simplify technical difficulties, and reduce occurrences of poor rubbing and dark-state light leakage.

The invention discloses a novel reducing agent for repairing a contaminated site. The novel reducing agent is prepared from the following components in percentage by mass: 70 percent to 95 percent of micron iron powder and 5 percent to 30 percent of an auxiliary agent, wherein the auxiliary agent is prepared from the following components in percentage by mass: 45 percent of xanthan gum, 54 percent of waste molasses and 1 percent of acetic acid bacteria powder. The reducing agent can also be used for effectively avoiding deposition and agglomeration phenomena in a utilization process of the micron iron powder, and uniform dispersion degrees of the micron iron powder in a polluted soil body and a polluted water body are remarkably improved; an oxidation-reduction potential of a reaction system is greatly reduced, and the reduction removal rate of the micron iron powder on pollutants in the soil and underground water is remarkably improved; the potential of hydrogen of a balance reaction system can be effectively balanced; finally, efficient reduction and recovery of the pollutants in the soil and underground water is realized. Meanwhile, the invention further provides a preparation method of the reducing agent; the utilization rate of waste materials can be realized, the preparation cost is low and the operation is simple and easy.

The invention discloses a puncture depth control and needle hiding device and a using method thereof. The puncture depth control and needle hiding device comprises a housing and an inner sleeve capable of accommodating a connected injector, wherein the inner sleeve is positioned in the housing and can perform axial motion and circumferential rotation. A plurality of correspondingly-matched axial stroke limiting structures are arranged on the inner wall of the housing and the outer wall of the inner sleeve respectively. The housing and the inner sleeve are both provided with far-end openings and near-end through holes, a spring is arranged between the housing and the inner sleeve, and the two ends of the spring respectively abut against the far-end inner wall of the housing and the near-end outer wall of the inner sleeve to push the near ends of the housing and the inner sleeve to be separated and enable the inner sleeve to be kept at an initial axial position with respect to the housing. A length marking part and a directional sign part which correspond to the syringe needle of the injector are arranged on the peripheral faces of the housing and the inner sleeves respectively. By the adoption of the puncture depth control and needle hiding device, the technical difficulty of medicine liquid injection operation is simplified, the needle feeding depth is accurate, and the best effect of medicine liquid injection is ensured. In addition, a needle hiding structure reduces the risk of accidental stabbing, relieves anxiety and fear mentality of an operator and meets the demands for self-administration injection optimization of different populations.

The invention discloses a method for optical cooperative orbit determination of a small celestial body surrounding a detector, which belongs to the technical field of deep space detection. The realization method of the present invention is as follows: the position and velocity vectors of the two detectors are regarded as state variables to be estimated, and an optical cooperative orbit determination state model is established in the small celestial body fixed-connected coordinate system; the camera of the observation detector images the observed detector , to obtain the pixel information of the observed detector in the phase plane, combined with the known attitude of the observed detector, to establish an observation model for optical cooperative orbit determination; use the nonlinear navigation filtering algorithm to coordinate the position and velocity vector of the two detectors It is estimated that the optical cooperative orbit determination of small celestial bodies around the detector will be realized. The present invention includes but is not limited to two detectors. When there are multiple detectors, the detectors are endowed with relevant detection attributes according to the actual needs of small celestial bodies surrounding the detectors for optical cooperative orbit determination. The optical measurement of small celestial bodies around the detector optical cooperative orbit determination.

A transflective LCD device and a method of forming the same are proposed. The transflective LCD includes a first substrate, a second substrate, a first alignment film, a second alignment film and a liquid crystal layer. The first substrate and the second substrate are divided into a transmissive area and a reflective area, in which areas of the first alignment film and the second alignment film are configured respectively by different aligning angles. The liquid crystal molecules in the liquid crystal layer corresponding to the transmissive area and the reflective area are tilted by different pretilt angles. Therefore, light going one-way through the liquid crystal layer corresponding to the transmissive area generates the same phase retardation as making a round-trip through the liquid crystal layer corresponding to the reflective area.

The invention discloses a fuel transmission-distribution sealing module safe conveying system of a dual fuel power fishing vessel. The system comprises an adsorption gas recycle sealing unit, a control unit and a gas storage and supply sealing unit, a gas interlock sealing unit, a gas reduced pressure sealing unit and a gas jet sealing unit which are connected by a hollow ventilated gas conveying pipe in sequence and are sealed by a bearing sealing box respectively, wherein the residual air discharge end of the gas interlock sealing unit is connected with the gas suction end of the adsorption gas recycle sealing unit through gas circuit; the output end of the gas jet sealing unit is connected with an engine through the hollow ventilated gas conveying pipe; the signal input end of the control unit is electrically connected with the signal output ends of the gas storage and supply sealing unit, the gas interlock sealing unit, the gas reduced pressure sealing unit, the gas jet sealing unit and the engine; the signal output end of the control unit is electrically connected with the signal input ends of the gas interlock sealing unit, the gas reduced pressure sealing unit and the gas jet sealing unit. The fuel transmission-distribution sealing module safe conveying system is intuitive, concise and clear and definite, and the intrinsic safety type is realized conveniently.

The invention provides a metadata query method and system, and belongs to the technical field of cloud computing. The method comprises the following steps: when a cluster name in a metadata query request is matched with a local autonomous metadata cluster, obtaining a query result from the local autonomous metadata cluster according to metadata query information in the metadata query request; otherwise, determining a target metadata agent end in a pre-constructed metadata query network according to the cluster name; sending the metadata query request to a target metadata agent end, so that the target metadata agent end obtains a query result from a corresponding non-local autonomous metadata cluster according to the metadata query information; and receiving a query result returned by the target metadata agent side. According to the method and system, the multi-copy problem of the metadata is avoided on the basis of keeping the efficiency of autonomy of the metadata in the information system and fault isolation, and the technical difficulty and the management cost of strategic decision support of cross-information systems of large enterprises are simplified.

A Scophthalmus maximus circulating water three-stage breeding method belongs to the technical field of aquaculture. According to the difference of an adaption character to the breeding environments, of the Scophthalmus maximus in different physiological stages, and the circulating water breeding process of the Scophthalmus maximus is divided into three stages; during the first stage, the initial stocking body weight of the Scophthalmus maximus is 2.5-5g; during the second stage, the initial stocking body weight of the Scophthalmus maximus is 60-75 g; and during the third stage, the initial stocking body weight of the Scophthalmus maximus is 160-180 g. the invention provides the optimal breeding intensity of the Scophthalmus maximus in a circulating water breeding system in different physiological stages, establishes a corresponding feeding strategy, a classification strategy, system operation parameters, and water quality conditions, and makes specific indicative factors and indexes atthe beginning and the ending of all the breeding stages clear; compared with the conventional breeding technologies, the method can scientifically improve an upper limit of the breeding intensity, can significantly improve the breeding production efficiency, can lower the diseases risk, can ensure safe breeding production, and can provide a novel and feasible technical scheme for industrial breeding of the Scophthalmus maximus.