249results about How to "Short distance" patented technology

The invention provides a photocatalytic reaction method, comprising the steps of: atomizing a solution or suspension containing a photocatalyst and a reactant to form mist; and leading the mist to be subjected to photocatalytic reaction by utilizing a light source. The invention also provides a photocatalytic reaction device, which comprises a reaction vessel, an atomizer arranged inside or outside the reaction vessel, a condensation sleeve communicated with the reaction vessel, and the light source used for photocatalytic reaction. By means of the method and the device, a gas-liquid interface is enlarged by changing the form of water, i.e. atomizing the liquid-phase solution of the catalyst, so as to reduce the escape path of hydrogen gas and effectively inhibit the occurrence of reverse reaction, meanwhile, because the scattering probability of light in the mist is increased and the effective absorption is enhanced, the light utilization rate and the catalytic efficiency of the photocatalyst are greatly improved.

The invention relates to a mining method of a nearly horizontal mineral deposit of an opencast coal field by casting and internally dumping and belongs to the mining method of the opencast coal field. The mining method comprises the following steps: (1) dividing a strip mine into a plurality of mining regions, mining overburdened materials of a first strip region, and stacking the overburdened materials outside an opencast mining limit; (2) dividing an overburdening table into one or more tables to be mined; (3) discharging the overburdened materials of a second strip region into a worked-out section of the first strip region after a mineral deposit exposed in the first strip region is mined, and transporting mined mineral products out of a mining field through entering-exiting channel transporting passages arranged on two sides of a channel or the middles of the strip regions. The mining method has the advantages that as the overburdened materials can be discharged and abandoned in the worked-out section, the occupied land of an externally-dumped soil site can be saved; the mining method is environment-friendly and is capable of restoring the land influenced by the mining operation during mining; abandoned and unserviceable lands in barren and mountainous mines can be changed into usable lands.

The invention discloses a run-through inner dumping method between mining areas for an opencast coal mine during the period of diversion. The method comprises the following steps: a mining area I extends to the terminal, a trapezoidal mining empty trench is reserved in the overlapped range of the mining area I and a mining area II during the transition period that the mining area I is turned to the mining area II; the working pit edge of the mining area I extends forwards, while the length of the trapezoidal mining empty trench in the moving direction is increased gradually; a middle bridge I is put up on the trapezoidal mining empty trench and used for connecting an inner waste dump and the working pit edge of the mining area II; the inner waste dump extends forwards to one third of the length of the working pit edge of the mining area II, and then a middle bridge II is put up; when the inner waste dump extends forwards to two third of the length of the working pit edge of the mining area II, a middle bridge III is put up; after diversion is completed, the working pit edge of the mining area II extends forwards continuously, the mining area II extends downwards, the middle bridge I, the middle bridge II and the middle bridge III are alternately communicated in a stepped-forwards manner, so that the tasks of stripping and mining in the mining area II are completed. The run-through inner dumping method disclosed by the invention has the advantages that secondary stripping amount between adjacent strip-shaped areas is avoided or eliminated, the inner dumping transportation distance of the stripped materials is shortened, and the costs of transportation and stripping are reduced.

The invention provides a double-channel ceramic filtering membrane. A main body of the membrane is in a cylindrical shape, the center of a circle is provided with a drainage hole, the periphery of the drainage hole is radially provided with two layers of membrane holes, membranes are coated in the membrane holes, the drainage hole is externally connected with a water outlet pipe, the membrane holes are externally connected with a water inlet pipe, penetrating liquid after being filtered by an inner-layer membrane hole enters the drainage hole under the action of pressure of the water inlet pipe and is recovered by the water outlet pipe, penetrating liquid after being filtered by an outer-layer membrane hole is infiltrated under the action of pressure of the water inlet pipe by the outer wall of the main body of the double-channel ceramic filtering membrane and is also recovered so as to form double channels, and the water inlet pipe and the membrane holes are sealed; moreover, the compactness degree of the water inlet pipe is greater than the compactness degree of the membranes in the membrane holes, and a plurality of grooves are integrally arranged on the outer circumference of the main body of the membrane in an axial direction; and moreover, the width of the grooves is greater than the diameter of the membrane holes. According to the double-channel ceramic filtering membrane, the path of liquid reaching a penetrating side from a material inlet side in the main body of the membrane is shortened, one penetrating side is added for the inner-layer membrane hole which is adjacent to the drainage hole by the drainage hole, the filtration resistance is greatly lowered, and the filtration efficiency is enhanced.

The walking and bridging inner transport passage of opencast coal mine is especially suitable for horizontal opencast coal mine with single bucket excavator and truck. The intermediate walking bridge is adopted for inner transport passage. For the advancing process of the working slope, there are stable slope for the coal stages in the lower horizontal end slopes and intermediate bridge for the lower horizontal soil draining passage. The bridge may be single bridge, double bridge or mixed bridge. The method is simple and has reduced truck transportation distance, low transportation cost, recovery of residual end slope coal and high economic benefit.

The invention discloses a seeding sorting method for raw and fresh goods. The seeding sorting method for the raw and fresh goods is used for sorting single items in a plurality of containers to a plurality of goods collecting places in a seeding manner, and includes the steps that firstly, a sorting task is generated, and comprises the positions of the goods collecting places and the demand of singular single items of each goods collecting place; secondly, according to the names, the numbers, the sorting task and the sorting condition of the single items in the containers, the distribution path of the single items is generated; and thirdly, the single items are sorted to the corresponding goods collecting places in a seeding manner according to the distribution path. The technical scheme has the beneficial effects that firstly, it is guaranteed that the walking journey is shortest when sorting is started according to the distribution path, and meanwhile, the distribution path does notconflict with the sorting path of other employees; and secondly, the sorting task is automatically allocated, a proper distribution path value can be accurately judged, the workload of the employees is reduced, and efficiency is improved.

The oven of a setting stenter comprises a machine case (8) arranged a build-in nozzle (3) with a fresh-air end (31) and a return-air end (30), a fan (2) on side of end (30) to draw cold air, and a heat exchanger (1) on side of end (31); wherein, arranging an air channel (10) between one end of the (1) and exhaustion port of fan (2) and an air-collector (7) between another side of (1) and the end (31). This invention has low request to fan to prolong service time, and reduces heat energy loss and consumption and the cost.

The invention relates to a special numerical control machine tool for milling an end face, drilling a center hole and lathing an outer circle of a thin and long piston rod part of a special device in the filed of petroleum, in particular to a special numerical control machine tool for milling an end face, drilling a center hole and lathing an outer circle of a thin and long shaft part. The machine tool comprises a main shaft box, a main shaft box base, a clamping and guiding device, a clamping and feeding device, material supporting frames and a machine tool body. The main shaft box comprises three main shafts, namely the milling main shaft, the drilling main shaft and the lathing main shaft, and the main shaft box is supported on the main shaft box base which is connected with the machine tool body below. The clamping and feeding device is connected with the clamping and guiding device, wherein the clamping and feeding device and the clamping and guiding device clamp a workpiece together and perform workpiece feeding, and the material frames only play a role in supporting parts. According to the numerical control machine tool, three processes, namely milling the end face, drilling the center hole and lathing the outer circle of a thin and long shaft are finished through one-time clamping, the working efficiency is high, clamping, positioning, the feeding amount and the feeding speed are numerically controlled, the machining precision is high, and the rejection rate is low.

The invention discloses an intelligent vehicle path planning method based on an improved artificial potential field algorithm, and the method comprises the steps: collecting the position parameters ofa starting point, a target point and an obstacle, constructing a gravitational potential field function and a repulsion potential field function, and obtaining the resultant force of an intelligent vehicle at a current position point through calculation according to the gravitational potential field function and the repulsion potential field function; dragging the intelligent vehicle to advance towards the target point according to the resultant force to generate a corresponding path; and a step of escaping from the local minimum point: taking a random point from a circle taking the current point or the obtained motion point as the center of the circle and the radius as the step length, judging whether the random point is set as the next motion point or not by utilizing the constructed probability function, judging whether the random point escapes from the local minimum point or not according to the size of the potential field, and finally limiting the number of iterations, namely thestep number through a potential energy threshold; and finally, selecting an escape track with the best smoothness in the limited step number. The step length and the track of moving out of the influence area are automatically adjusted according to the size of the local minimum value point influence area, the track smoothness, the moving step number and the calculated amount are difficult to balance, and the problems in the prior art are solved.

The invention is suitable for the field of the Internet, and provides a data delivery method and device based on a content delivery network CDN. The method comprises the following steps: a domain name resolution request sent by a user terminal is received by a network node, and the domain name carried in the domain name resolution request is acquired; the domain name is found in a CDN domain name list of the network node; if the domain name is found out, the IP address of a CDN module in the network node is returned to the user terminal as the resolution result of the domain name; and a destination address sent by the user terminal is received as a data request of the IP address of the CDN module, and data corresponding to the data request is delivered to the user terminal. According to the embodiments of the invention, the CDN positional accuracy can be effectively improved, the user access delay can be reduced, the flow that flows out from the network node can be reduced, the backbone network resource occupancy can be reduced, and the investment cost can be reduced.

The invention discloses a transport method of a lower stripping material of a strip mine, and particularly relates to a transport method of building a longitudinal composite bridge in the middle of a strip mine stope. Bridging manners of the longitudinal composite bridge include linear bridge stacking and fan-shaped bridge stacking. In a strip mining process, an operating line is long and a material stripping haul distance is large, so that building of a middle bridge perpendicular to the operating line in the gravity center of a stripping material in the stope can reduce a perpendicular haul distance of material handling on a bridge body. Building of sub-bridges based on the single bridge can increase service stripping steps of the bridge body. The transport method of building the longitudinal composite bridge in the middle of the strip mine stope is applicable to internal dumping strip mines adopting single-bucket excavator and truck mining technologies in a horizontal or subhorizontal strip coal mine, can reduce an automobile haul distance of the lower stripping material, can lower the transport cost, can increase an economic benefit, and has wide practicability.

The invention discloses a dynamic multi-target multi-path guidance method based on decomposition, a system and a storage medium. The method can provide drivers with a plurality of optimal paths such as the shortest distance, the least use time, the most safe and comfortable, and even the drivers' preference for selecting under the dynamic real-time traffic section. The algorithm transforms a dynamic multi-objective multi-path optimization problem into N single-objective path optimization sub-problems, the objective function of each sub-problem is aggregated by the function of each objective. The algorithm optimizes the N sub-problems simultaneously in an evolutionary process. Finally, the user chooses a path from the optimal solution of the N sub-problems according to their preferences. Because each sub-problem only needs neighbor information around it, and the number of neighbors T is far less than the size of the population N, the algorithm has less computational complexity, and canbetter meet the real-time requirements of the multi-objective multi-path guidance system.

A fuel swirling means 15 for giving a swirling force at the upper stream of the valve sheet 7 to the fuel passing through the surrounding area of the valve body 13 and a nozzle 16 injecting a swirling fuel are provided. A fuel spray 47 injected out from the injection port 17 of the nozzle 16 is so formed that the orientation of the fuel spray is deflected in a definite direction on the basis of the longitudinal axis C of the fuel injection valve body, the reachable distance L1 of the fuel spray at the deflected side is longer and the reachable distance L2 of the fuel spray at another side opposite to the deflected side is shorter.

Sketches are generated for each node in a graph. For undirected graphs, each sketch for a node may include an indicator of a node from a seed set of nodes and the shortest distance between the node and the indicated node. When a request is received for the shortest distance between two nodes of the graph, the sketches for each of the two nodes are retrieved, and nodes that are indicated in both of the sketches are determined. The distances between each of the two nodes and a determined node as indicated in the sketches is summed for each of the determined nodes, and the sum having the least distance is selected as the estimated shortest distance between the two nodes.

The invention discloses a network application platform system which comprises trial account distribution equipment for distributing a trial account for a non-registered user, network application access equipment for receiving a request which is sent by a user from a network client and is used for accessing network application in the network application platform system, wherein when the user is the non-registered user, the trial account distribution equipment is requested to distribute the trial account for the user, so that the user can access the network application in the network application platform system by utilizing the distributed trial account. Furthermore, the invention also provides an access method for a network application platform. By adopting the system and the method, a path that the non-registered user of a webpage application platform enters the corresponding network application can be shortened, the process is simplified, and user loss caused by the complicated process is reduced.

The invention discloses a network application access method used for accessing to one or more of network applications through a network application access system, wherein the network application access method comprises: receiving a request of accessing network application sent by a user from a network client, and determining whether the user is registered; distributing a trial account number to the user to enable the user to access to the network application through the trial account number if the user is a non-registered user; the user accesses to the network application through the registered account number if the user is a registered user, wherein the step of determining whether the user is registered comprises: determining the user as a non-registered user if the account number of the user is not contained in the access request, or if the contained account number is nonexistent or is null value; and determining the user as a registered user if the account number of the user contained in the access request exists. Furthermore, the invention further provides a network application access system. The network application access method and system provided by the invention can be used for shortening the route of the non-registered user entering the corresponding network application on a webpage application platform and reducing the user loss caused by complex procedures.

The present invention efficiently arranges a spare TFT element in a pixel region of a liquid crystal display device. A display device includes a substrate on which TFT elements which are arranged in pixel regions each of which is surrounded by two neighboring scanning signal lines and two neighboring video signal lines are formed. The substrate arranges a first TFT element and a second TFT element in each pixel region in which the first TFT element and the second TFT element independently include a channel layer, a drain electrode and a source electrode respectively, only either one of the first TFT element and the second TFT element in each pixel region is operated when a video signal is applied to the video signal line and a scanning signal is applied to the scanning signal line, and the first TFT element and the second TFT element differ from each other in largeness or a shape of an occupied area or a channel width and a channel length of each TFT element when the substrate is viewed in a plan view.

The invention provides an electric vehicle charging distribution method and apparatus. The method comprises the steps of establishing a charging uniform distribution target function by utilizing a charging station quantity, target charging power of the charging stations, an electric vehicle quantity, electric vehicle charging power, charging decision variables, charging journeys and charging time when a plurality of electric vehicles are distributed to a plurality of charging stations for charging; establishing constraint conditions of the charging decision variables and the charging journeys; under the constraint conditions, solving the charging uniform distribution target function by utilizing a basic particle swarm optimization algorithm to obtain charging decision results of the electric vehicles, wherein the charging decision results are used for distributing the electric vehicles to the charging stations for charging. According to the method and the apparatus, the demands of electric vehicle users and stable operation requirements of a power network can be met at the same time.

The invention discloses an engine double circulation forced cooling system, comprising internal circulation cooling subsystem and external circulation cooling subsystem, where the pipeline of the external circulation cooling subsystem connects to the external circulation water cavity of a heat exchanger and that of the internal circulation cooling subsystem connects to the internal circulation water cavity of the heat exchanger, the pipeline of the external circulation cooling subsystem is equipped with a flow control valve able to control the flow of external circulation cooling medium passing through the heat exchange, and a temperature sensing device sampling from the internal circulation water cavity, and the temperature sensing device drives the flow control valve; when a machine is in the 'warming-up' course, the temperature sensing device controls the flow control valve to control the quantity of external circulation cooling medium entering the heat exchanger so as to achieve the purposes of fully using heat energy, shortening warming-up time, and reducing heat energy losses.

The invention discloses an energy-saving setting machine and belongs to the field of textile machines. The energy-saving setting machine comprises a drying oven, a heat supplying device and a waste heat recycling device, wherein the waste heat recycling device comprises a heat exchanger, the heat exchanger is connected with a waste gas discharge outlet in the waste heat recycling device and an air supplying hole with a blower, the heat exchanger is further connected with a waste discharge hole of the drying oven, and also connected with a heat supplying device through a waste heat recovery pressure ventilation pipe, the waste gas discharge outlet of the waste heat recycling device is communicated with the waste discharge hole of the drying oven, the air supplying hole of the waste heat recycling device is communicated with the heat supplying device, the heat supplying device comprises a burner, a heat supplying air pipe, and an internal exchange fan, the burner is connected with the waste heat recycling pressure ventilation pipe and the heat supplying air pipe, the internal exchange fan is arranged at a joint of the heat supplying device and the drying oven, the heat supplying air pipe of the heat supplying device is a 'T'-shaped air pipe, and a 'C'-shaped baffle is also arranged at the front end of the heat supplying air pipe. The energy-saving setting machine has the advantages that the effects of saving energy and protecting the environment are realized, and safety factor is also increased.

The invention relates to a method for improving a clarifying effect of molten glass in floating production and a kiln device, which solve the technical problems of improving the clarifying effect of molten glass in floating production and further reducing the generation rate of bubbles so as to produce a high-quality glass base plate. The method is realized in a molten glass clarifying kiln; after a glass material is melted in the clarifying kiln and processed by a clarifying area and a cooling adjustment area, the molten glass is output; a clarification forcing area is additionally arranged between the clarifying area and the cooling adjustment area of the clarifying kiln, and the length and the detention time of a clarifying process of the molten glass are increased to match for carrying out clarification forcing processing on the molten glass; the kiln device is provided with two U-shaped walls, and the two U-shaped walls form a sealed clarification forcing area by a top wall, a bottom wall and a side wall of a kiln body. The invention obviously improves the clarifying effect and the qualified rate of products and can efficiently carry out defoaming clarification on the molten glass and obviously reduce the influence of the clarifying bubbles on the quality of the glass base plate.

The invention discloses a return charging control method and device for an automatic walking device. The control method comprises the steps of obtaining a magnetic field intensity generated by a boundary line sensed by a magnetic field sensor arranged on the automatic walking device; judging whether the magnetic field intensity meets a preset intensity threshold value or a preset intensity range;and adjusting the moving mode of the automatic walking device when it is judged that the magnetic field intensity does not meet the preset intensity threshold value or the preset intensity range. According to the return charging control method, the automatic walking equipment is controlled to walk along a boundary line to the charging pile. Compared with the prior art where an automatic walking device has no closing means to a destination charging pile in a working area, the return charging control method has the advantages that the walking distance of the automatic walking device is relatively short, so that the automatic walking device can be charged in time.

The invention provides a stereo garage carrying system. A stereo garage comprises at least one layer of annular parking lot. A transit parking spot capable of rising and falling is arranged at the same position of each annular parking lot. A trolley guide rail is an annular guide rail arranged in the middle of each annular parking lot. A control system controls a carrying trolley to annularly move on each trolley guide rail. A carrying device and a carrying trolley position detector are arranged on each carrying trolley. A wheel position detector and a clamping arm are arranged on each carrying device. A clamping arm position detector is arranged on each clamping arm. Signals of the carrying trolley position detectors, the clamping arm position detectors and the wheel position detectors are transmitted to the control system. The control system analyzes the signals and outputs control signals to the carrying trolleys and / or the carrying devices and / or the clamping arms and / or rotating loading platforms so that vehicle parking operation and / or vehicle taking operation can be completed. The automation degree of the stereo garage carrying system can be improved, and vehicle owners can efficiently store and take vehicles.

The invention relates to an automatic optical detection device, in particular to a drive adjusting and loading platform of an online detection device, which comprises a fixing loading platform and a movable loading platform. One end of the movable loading platform is connected with an adjusting movable block and the other end thereof is vertically connected with a support rod in a sliding way, the adjusting movable block is connected with an adjusting screw rod through a screw thread, one end of the screw rod is connected with an adjusting motor and the other end thereof is connected with a fixed block bearing, a driving motor is arranged under the middle part of the fixing loading platform and is connected with a hexagonal threaded rod, the surface of the hexagonal threaded rod is contacted with the inner side of a driving belt, a rolling shaft is respectively arranged on two ends of the side of the fixing loading platform, and the side of the fixing loading platform is opposite to the adjusting loading platform. With the special design of the adjusting device, the distance between two loading platforms can be adjusted according to the size of the product to be detected, and the products with various sizes and models can be successfully and quickly detected. Moreover, the invention can be operated along with the production line synchronously, and no special personnel are needed for operation, thereby saving the human resource.

The invention relates a ceramics film filtration element. The center hole of ceramics film tube is uncoated. At the center hole there is draught tube, and the gap between center hole and draught tube is sealed by epoxide resin to prevent the permeable liquid and raw liquid from mixing. The invention predigests the manufacturing technique and reduces the cost.

The invention discloses a system for fast mounting a steel pull rod in ultra-long and large-dip-angle tunnel anchorage by means of a transverse gallery of a tunnel and an operation method. The operation method is characterized by comprising the following steps: (1) building of a platform; (2) arrangement of a traction system; (3) hoisting and transportation of the steel pull rod; (4) mounting of the steel pull rod. Due to large length, narrow space and a large dip angle in ultra-long and large-dip-angle tunnel anchorage, the steel pull rod is difficult to mount. With the adoption of the system and the operation method, the steel pull rod can be mounted in site smoothly and fast in the ultra-long and large-dip-angle tunnel anchorage by means of the transverse gallery of the tunnel; fewer materials are required, the structure is not complicated, the transportation distance is shortened, and the mounting efficiency is improved; the system is stable on the whole, and safety accidents are not prone to occur.

The invention provides a strip mine mining boundary and mining program collaborative optimization method under a complex coal seam condition. The optimization method comprises the steps that a miningboundary model and an external dumping site boundary model are constructed; constructing a three-dimensional geological model; determining a mining program scheme; determining a production stripping ratio, compiling a strip mine stripping and mining project progress plan, and determining a stripping project position and a project amount of each year; planning each engineering position in the stopeand the flow direction and flow of each stripped object, and optimizing the utilization scheme of the internal and external waste dump; the service range of each mining process of stripping and coalmining and a process system arrangement scheme are optimized; and determining an optimal mining procedure. By means of the optimization method, synchronous collaborative optimization can be well conducted on the mining boundary and the mining program, operability is high, the stripping mining cost of the strip mine can be remarkably reduced, and meanwhile coordination of stripped object discharging and dumping site planning can be guaranteed.

The invention relates to an optical sensor with collision protection for a measurement machine, in particular for a coordinate measurement machine. The optical sensor comprises a sensor-side coupling part for mechanically and optically connecting to the measurement machine, and a sensor element. According to the invention, the sensor comprises a sensor protective coupling as collision protection, said protective coupling comprising a coupling part on the measurement machine side and a coupling part on the sensor element side, wherein a fiber optic cable is routed between the coupling parts of the sensor protective coupling and wherein a fiber optic cable protection element surrounds the fiber optic cable, wherein the ends of the fiber optic cable protection element are fastened to the associated coupling part of the sensor protective coupling.