Method and device for testing single event upset in in-field programmable logic gate array

The invention discloses a method and a device for testing single event upset in in in-field programmable logic gate array, comprising the following steps: a highly reliable monitor unit which is connected with the field programmable logic gate array and used for realizing the testing flow of the single event upset is arranged; the highly reliable monitor unit executes the read back flow of the configuration memory of the field programmable logic gate array, reads the configuration frame of the field programmable logic gate array, and executes an original configuration frame which is read from a nonvolatile memory by a standard NVRAM interface; and the highly reliable monitor unit compares the read back configuration frame of the field programmable logic gate array with the original configuration frame by means of byte, when the configuration frame is wrong in comparing, namely, the configuration memory of the field programmable gate array is judged to have the single event upset. The device ...

Method and device for repairing single event upset in field programmable logic gate array

A method and a device for repairing single event upset in a field programmable logic gate array are disclosed, a high-reliability monitoring unit, which is connected with the field programmable logic gate array and used for realizing the detection and the repair of the single event upset, is set; a read-back process of a configuration memory of the field programmable logic gate array is implemented by the high-reliability monitoring unit in order to read configuration frames of the field programmable logic gate array, and original configuration frames, which are read from a non-volatile memoryvia a standard NVRAM interface, are then implemented by the high-reliability monitoring unit; the high-reliability monitoring unit compares the read-back configuration frames with the original configuration frames by bytes, when comparison error occurs on the configuration frames, it is judged that the single event upset in the configuration memory of the field programmable logic gate array occurs, ...

Component type high-pressure common rail device

The invention discloses a component type high-pressure common rail device. A common rail pipe is provided with a pressure sensor and a pressure limiter. The common rail pipe comprises an inner pipe and an outer pipe; a circumferential limit device is arranged between the inner pipe and the outer pipe; the two ends of the outer pipe are fixedly sleeved with a seal cover and the seal covers are used for sealing the two ends of the outer pipe; the circumferential surface of the common rail pipe is provided with an oil inlet and multiple oil outlets; and on the inner circumferential surface of the inner pipe, an annular inward-convex table stretching along the circumferential direction of the inner pipe is respectively arranged between the oil inlet and an oil outlet adjacent to the oil inlet and between two adjacent oil outlets. The component type high-pressure common rail device disclosed by the invention can improve the pressure stability in the common rail pipe, reduce the fluctuation of ...

电脑激光超硬材料雕刻技术

A computer ontrolled laser carving technique for the ultrahard material includes such steps as grinding the surface to be carved of ultrahard material for leveling it, sticking a blasted sand resistant soft film on it, designing the words and pattern by computer, inputting them in laser carving machine, laser carving on said sheet, and blasting sand to carve further.

Method for exchanging time deterministic data based on time pressure

Disclosed is a time deterministic data switching method and device based on time pressure. The method comprises: in the network environment constructed by switching nodes, real time measuring the total switching delay and the switching node number generated by transmitting each data frame through each switching node, recording the delay and the node number onto the data frame and transmitting thesame; calculating the switching time pressure of the data frame by each switching node according to the actual transmission delay requirement, and the total switching delay and the switching node number recorded in the data frame; adjusting and controlling the switch priority based on the time pressure to satisfy the transmission delay requirement needed by the data frame. The switching device includes a switching module, a time module, a storage unit and a PHY module. The invention can achieve dynamic coordination of the switch delay among the multiple switching devices, ensure the determinacy ...

Method for preparing 1-methoxy-2-acetone with catalytic oxidation of 1-methoxy-2-propyl alcohol

The invention relates to a method for preparing 1-methoxyl-2-acetone through 1- methoxyl -2-propanol by means of catalytic oxidation, which is characterized in that: the catalytic oxidation is performed under the condition of taking 2, 2, 6, 6-tetramethyl piperidine -1-oxygen-derived free radicals or piperidinol compounds and nitrite or nitrate as catalysts, one or mixture among phosphate (hydrophosphate), halides, halate, borate, molybdate, carbonate (supercarbonate), sulfate and acetate as auxiliary catalyst, and halogen, hypo halite, hydrogen peroxide solution, oxygen, air or organic peroxide as oxidant. Compared with the prior art, the method has the advantages that: main parts of the catalysts do not use transition metals, and the catalysts are low-price and easily obtained and can be reused; the reaction condition is mild, and the reaction can be performed under normal temperature and normal pressure and also can be performed under high temperature and high pressure; equipment is ...

Wireless communication terminal and software upgrading method thereof

The invention relates to a wireless communication terminal and a software upgrading method thereof. The software upgrading method comprises the following steps of detecting whether a memory card which is connected to a PC (Personal Computer) has a version file to be upgraded by the wireless communication terminal; copying the version file from the memory card to an appointed position of a non volatile memory if yes; and then carrying out version upgrading on the version file to be upgraded. Compared with the prior art, the invention can directly realize repair upgrading on the PC without making use of an external tool. Through the invention, the convenience of upgrading can be enhanced, and the safety of upgrading can also be enhanced because the wireless communication terminal has a repair mechanism after the upgrading fails.

Method for charging nickel-hydrogen, nickel-cadmium batteries

The invention discloses a charging method for nickel-hydrogen and nickel-cadmium cells, wherein the charging process of a cell is divided into N sections, threshold valves and limit values of which are determined; when the cell is charged, if the negative value increasing of the voltage occurs, whether the cell is normally charged is judged; if the charging is abnormal, the charging process is directly jumped to the N section and enters the trickle charge state; when the cell voltage corresponding to the limit value of any section is lower than the threshold value of the section, the chargingprocess is directly jumped to the N section and enters the trickle charge state. The method and the device adopting the invention can quickly enter the charging protection state when the cells are abnormal, thereby achieving an aim of safe charging.

Testing method for hydrogen permeation activity of pipe line steel attached with pyrite compound

The invention discloses a testing method for hydrogen permeation activity of pipe line steel attached with pyrite compound, which belongs to the technical field of pipe line steel. The hydrogen permeation activity of pipe line steel attached with pyrite compound and other corrosion products in the H2S environment is researched, and the method is suitable for sulfur-resisting pipe line steel higher than X52-X65 level. The oil and gas field environment can be accurately simulated, so that pyrite compound, which is the same as pyrite compound generated when the pipe line steel is in active service. can be generated on the surface of the pipe line steel, and the hydrogen permeation performance of the pipe line steel is tested by utilizing a double electrolytic technology. Compared with the prior art, the test method has the advantages that as pipe line active service environment is simulated accurately, parameters such as hydrogen diffusion coefficients of materials in the H2S environment are ...

Spaceborne processing platform resisting single event effect

The invention discloses a spaceborne processing platform resisting single event effect, which comprises a high-reliability monitoring unit, a non-volatile memory, a field programmable logic gate array and more than one DSPs, the high-reliability monitoring unit and other parts are interconnected by a local bus, and the field programmable logic gate array and the DSPs are interconnected by a high-speed bus; the high-reliability monitoring unit is used for detecting and repairing single event upset in the field programmable logic gate array and the DSPs. The invention is a spaceborne processing platform having simple structural principal, convenient operation, high reliability, good stability and the ability of resisting the single event effect.

Alkali metal stannate production method

The invention provides a method for producing alkali metal stannate. The invention belongs to a method for producing inorganic compound stannate. The method uses metal tin powder, alkali metal hydroxide and pure water as raw materials, which are heated, pressurized and supplied with oxygen for reaction in a pressure kettle and then are directly oxidized and synthesized into alkali metal stannate solution; after the solution is filtered, concentration, crystallization and dehydration are orderly performed, so as to obtain an alkali metal stannate product. The method has the advantages of convenient operation, short process flow, reliable process technology, high product purity, stable product quality, high production capacity, low production cost, and so on. An extremely small amount of leaching residue can be returned to a tin smelting system to be reclaimed, and concentrated mother liquor is returned and leached. Therefore, the method produces no three wastes in the whole technical process ...

Technique for preparing desulfurized gypsum by two-step process

A two-step process for producing desulfurized gypsum comprises: the first step: gypsum dihydrate is pre-dried under such conditions that the drying temperature is 120-160 DEG C and the drying time is 3-10 seconds; and the second step: the dried gypsum is fed into a calcining furnace. The second step also involves the following steps: firstly, the dried materials for desulfurized gypsum production are fed into a raw material bin via a delivery pipeline by an induced draft fan; then, the dried materials are fed into the calcining furnace for calcination through a delivery device by the induced draft fan, wherein the calcination temperature is preferably 180 DEG C and the calcination time is 1-10 minutes; thirdly, the calcined gypsum powder is fed into a mill for pulverization until the particle size reaches 5-60 Mum, followed by modification and cooling. The process has the advantages of low energy consumption; simple operation; high, stable and controllable product quality; and low cost.

Elevator remote-monitoring device based on internet

The utility model relates to the technical field of internet monitoring, in particular to an elevator remote-monitoring device based on an internet. A camera (11) is arranged in a car (10), a sensor acquisition device (9) is disposed on the car (10), an elevator control cabinet (2), a protocol acquisition device (4), a network server (6) and an uninterrupted power supply (7) are arranged in a machine room (1), the elevator control cabinet (2) is connected with the protocol acquisition device (4) by a data line (3), the protocol acquisition device (4) is connected with the network server (6) by a 485 bus (5), and the network server (6) is connected with the uninterrupted power supply (7) and the camera (11) in the car (10). The elevator remote-monitoring device based on the internet is simple in structure, convenient in installation, low in cost, comprehensive in data acquisition and high in safety factor, saves time and labor, and can realize monitoring management by the aid of the internet ...

Leukocyte increasing apparatus

The invented instrument is composed of a main frame, a radiation head and a manipulator-three parts. In the radiation head there are successively connected oscillator, isolator and radiation horn, outside of which there is a housing, between the radiation horn and the fastening ring there is a ring groove feeder. On the appointed acupoint said therapeutic instrument can implement the required very high frequency radiation in accordance with the fixed time, to the tumor sufferor, it can rise again the white blood cells, stop pain obviously, whet the sufferor's appetite, improve sleeping, dispel fatigue and have no side effect.

Large capacity image data real-time compressing apparatus and method based on multi-DSP parallel processing

The invention relates to the field of message processing, in particular to an equipment and a method for real-time compression for large-capability images and data based on the multi-digital signal processor (DSP) parallel processing. A multi-DSP parallel processing structure is adopted to complete the real-time compression for large-capability images and data; a field programmable gate array (FPGA) is chosen as a data-transformation element, and the DSP is used as a managing element according to the task allocation and data coupling mode; the image data output by a camera enter each DSP of a data compressor in parallel, and the FPGA is not processed basically. Code stream after being compressed by each DSP is output to the FPGA in parallel and is output serially after the FPGA makes parallel-serial conversion, so no coupling basically exists between every two DSPs. The equipment has the advantages of strong data processing ability, good parallel performance, high reliability and easy expansion ...

Program execution flow jump error detection method for satellite-borne processor

The invention discloses a program execution flow jump error detection method for a satellite-borne processor, comprising the steps of (1) initiating a jump state matrix when a processor program runs, and performing a step (2); (2) constructing a basic module jump matrix according to the jump relationship among program basic modules, and performing a step (3); (3) executing the jump state detectionflow of each basic module in sequence, and executing a jump check matrix; (4) checking whether the quantity of an element '1' in the jump check matrix is 1 by statistic, if so, detecting that the former jump is normal and performing the step (3), otherwise, detecting that the former jump is exceptional and performing a step (5); and (5) finishing all states and performing program fault treatment.The invention is a program execution flow jump error detection method for a satellite-borne processor that has a simple principle and good reliability and is conveniently operated.

Food replenisher for improving function of intestinal canal, moistening intestines and relaxing the bowels, and preparation method thereof

The invention relates to a food supplement for improving the intestinal function and relaxing bowel, which consists of the following raw materials in percentage by weight: a. 5 to 90 percent of fructo-oligosaccharide, 5 to 90 percent of mannitol and 0.1 to 10 percent of Tibet seabuckthorn juice (calculated on dry basis); or the food supplement consists of the following raw materials in percentage by weight: 10 to 90 percent of fructo-oligosaccharide and 10 to 90 percent of mannitol. The preparation method b is as follows: the materials of a are mixed, crushed, filtered by a 100 meshes of sieve, and prepared into soft materials by 90 to 95 percent ethanol; the soft materials are sieved by a 16 or 14 meshes of sieve and prepared into wet particles; and the wet particles are dried at a constant temperature of between 60 and 80 DEG C, subjected to tight subpackage by damp-proof packing, and can be prepared into granular formulation or powder or an oral liquid. The recommended health-care dosage ...

Time-pressure-based time deterministic data exchange device

The invention relates to a time-pressure-based time deterministic data exchange device which comprises an exchange module, a time module, a storage unit and a PHY apparatus set. The time module is connected with an input end of the exchange module. The PHY apparatus set is connected with an output end of the exchange module. The exchange module comprises an exchange unit, a time unit used to be connected with the time module and a plurality of MAC used to be connected with the PHY apparatus set. A plurality of sets of input controllers, input dispatchers and output dispatchers which are connected with each other sequentially are arranged between an input port and an output port of the exchange unit. A buffer cross link unit is arranged between the input dispatchers and the output dispatchers. The storage unit comprises a VOQ queue unit which is connected with each input port correspondingly and a dispatching linked list unit and a time delay linked list unit which are in only connection ...

Container vehicle double box separate weighing method

The invention relates to a weighing method by box-dividing of a container vehicle dual-box carrying, belonging to the weighing field of a container truck which carries the container. The method comprises the following steps: (1) all vehicle types and data parameters of trailer are memorized; (2) a mathematic model of 1 equal to A plus (P3 minus P'3) multiplied by ((C33 plus 1')/ Gcos Theta) plus delta of the center 1 of gravity of goods along the length direction of the container and a weight mathematic model of the front container and the rear container of G1 equal to G(3L' minus 2l)/2L' and G2 equal to G(2l-L')/ 2L' are established and written into recognition management software; wherein, A is a constant ranging from 400mm to 1000mm; Dheta is ranging from 0 DEG to 30 DEG; Delta is a correction coefficient; (3) data of the full vehicle weight W and weight of all axles under static heavy vehicle state are recorded, the total weight G of goods is equal to W minus T by calculation; (4) the ...

Method and device for exchanging time deterministic data based on time pressure

Disclosed is a time deterministic data switching method and device based on time pressure. The method comprises: in the network environment constructed by switching nodes, real time measuring the total switching delay and the switching node number generated by transmitting each data frame through each switching node, recording the delay and the node number onto the data frame and transmitting the same; calculating the switching time pressure of the data frame by each switching node according to the actual transmission delay requirement, and the total switching delay and the switching node number recorded in the data frame; adjusting and controlling the switch priority based on the time pressure to satisfy the transmission delay requirement needed by the data frame. The switching device includes a switching module, a time module, a storage unit and a PHY module. The invention can achieve dynamic coordination of the switch delay among the multiple switching devices, ensure the determinacy ...

Power drive mechanism able to increase force moment

A power drive mechanism able to increas force moment is composed of fixed driving chain wheel (central wheel) and its movable sleeved central axle, and the central wheel fixed to machine frame, movable driving chain wheel (planetary chain wheel) and its central axle and the first and second driving connecting rods for increasing force moment. A chain is used between the central and the planetary chain wheels. It can generate more active works.

Method for preparing hexabromocyclododecane

The present invention discloses a preparation method of hexabromocyclododecane. In the method, bromine and cyclododecatriene are simultaneously dropped in the mixed solvent of substances, which are used for providing halogen ions, and protic solvent; the molar ratio of the bromine and the cyclododecatriene is equal to 3 to from 3.5 to 1; thus the hexabromocyclododecane can be prepared through the reaction. Compared with the hexabromocyclododecane prepared in the prior art, the hexabromocyclododecane prepared in the method has an increased melting point, which reaches above 186 DEG C. The preparation method has the advantages of low cost, simple operation, safety, environmental protection, and suitability for the industrial application.

Weighing method based on digital sensor multiple platforms static state rail weigher

Stepless damping-force adjustable shock absorber

The invention relates to a stepless damping-force adjustable shock absorber belonging to the technical field of vehicle shock absorption. The stepless damping-force adjustable shock absorber comprises an upper base, a lower base, an upper cylinder cover, a lower cylinder cover, a piston rod, a piston, a working cylinder, an oil storage cylinder and the like. The stepless damping-force adjustable shock absorber is characterized in that the left side of the lower base is provided with a short cylinder, the center of the short cylinder is radially provided with crossed through holes which are communicated with four through holes on a left end surface, and an electro-hydraulic proportional valve and a safety valve are installed in through holes of the lower base; a bent oil channel is arranged on the upper cylinder cover and is provided with two openings, one opening is communicated with a working cavity, and the other opening is communicated with an oil pipe; and the joint of the piston and ...

Form-sound code input method

The present invention relates to a configuration and phonetic code input method, aimed at providing a complete scheme for inputting Chinese characters. Said configuration and phonetic code input method has the five-stroke input functionand phonetic input function, and its combination of the support-extended inner code specification-GBK and "input method characters library" and adoption of specialtreatment technique of same-radical double-character word groups, and the principle of that common words are prior and non-common words are evaded and phonetic identifying code can further optimize five-stroke character form input method, and greatly raise input speed free from duplication code.

Ultrasonic inspection method of back end of thick-wall aluminum alloy pipe

An ultrasonic inspection method of a back end of a thick-wall aluminum alloy pipe relates to a method for inspecting the back end of the thick-wall aluminum alloy pipe and solves a problem that the inspection is not complete when a presently-adopted metallographical random inspection method is used for inspecting back end residual of a thick-wall aluminum alloy pipe workpiece. The ultrasonic inspection method is as follows: selecting an ultrasonic detector and a longitudinal wave normal probe and a transversal wave angle probe which are assorted with the ultrasonic detector; grinding an interface between the transversal wave angle probe and a workpiece into a cambered surface with curvature which is the same as the curvature of the pipe workpiece; debugging the ultrasonic detector and the probes in a combined manner; then, by using the two probes, simultaneously carrying out ultrasonic inspection on a tail end of the thick-wall aluminum alloy pipe workpiece to be inspected; moving the probes ...

Dichloropropanol catalyst prepared by glycerol method

The invention relates to epoxy chloropropane intermediate dichloropropanol catalyst prepared by a glycerol method and improvement of a chlorination reaction method. The catalyst is characterized in that the catalyst for reaction is a mixed catalyst of organic carboxylic acid and strong acid, the organic carboxylic acid catalyst is monocarboxylic acid of C1-C12 or dicarboxylic acid of C2-C12, and the dosage is 0.5-5 percent of the content of a glycerol substance; the dosage of the strong acid catalyst is 0.5-15 percent of the content of the glycerol substance; the substance amount ratio of theorganic carboxylic acid to the strong acid is 1:1.0-8.0, and the chlorination reaction is carried out in a reactor and a spray reaction tower with filler, which are connected in series. Compared withsingle catalyst, the invention has high catalytic activity, short reaction time, total reaction time of 6-8 hours and high dichloropropanol yield of larger than 96 percent; particularly, the chlorination ...

Ultrasonic fault detection method for heat check compound filling defect of thick-wall aluminum alloy pipe

The invention relates to an ultrasonic fault detection method for a heat check compound filling defect of a thick-wall aluminum alloy pipe and relates to the field of aluminum alloy production, solving a problem concerning nondestructive examination of the radial heat check compound filling defect of the thick-wall aluminum alloy pipe. The method comprises the following steps: firstly, selecting an ultrasonic fault detection device and an ultrasonic probe, grinding the probe to cause the probe to have certain curvature, choosing a reference sample and producing an artificial groove fault; then, debugging the ultrasonic fault detection device; then, detecting a sample of the radial heat check compound filling defect of the thick-wall aluminum alloy pipe according to debugged fault detection parameters, and carrying out scanning by moving the probe along the circumferential direction of a pipe workpiece; and finally, repeating the previous steps after the scanning and the detection are finished ...

Program execution flow jump error detection method for satellite-borne processor

The invention discloses a program execution flow jump error detection method for a satellite-borne processor, comprising the steps of (1) initiating a jump state matrix when a processor program runs, and performing a step (2); (2) constructing a basic module jump matrix according to the jump relationship among program basic modules, and performing a step (3); (3) executing the jump state detection flow of each basic module in sequence, and executing a jump check matrix; (4) checking whether the quantity of an element '1' in the jump check matrix is 1 by statistic, if so, detecting that the former jump is normal and performing the step (3), otherwise, detecting that the former jump is exceptional and performing a step (5); and (5) finishing all states and performing program fault treatment. The invention is a program execution flow jump error detection method for a satellite-borne processor that has a simple principle and good reliability and is conveniently operated.

Method for charging nickel-hydrogen, nickel-cadmium batteries

The invention discloses a charging method for nickel-hydrogen and nickel-cadmium cells, wherein the charging process of a cell is divided into N sections, threshold valves and limit values of which are determined; when the cell is charged, if the negative value increasing of the voltage occurs, whether the cell is normally charged is judged; if the charging is abnormal, the charging process is directly jumped to the N section and enters the trickle charge state; when the cell voltage corresponding to the limit value of any section is lower than the threshold value of the section, the charging process is directly jumped to the N section and enters the trickle charge state. The method and the device adopting the invention can quickly enter the charging protection state when the cells are abnormal, thereby achieving an aim of safe charging.

Alloy structural steel material for brake discs of high-speed motor train unit vehicles

The invention discloses an alloy structural steel material for brake discs of high-speed motor train unit vehicles, which belongs to the technical field of materials for brake discs. The alloy structural steel material comprises the following chemical components in percentage by weight: 0.26 to 0.30 percent of carbon, 0.8 to 1.0 percent of silicon, 0.7 to 0.9 percent of manganese, 0.9 to 1.0 percent of chromium, 0.6 to 0.8 percent of nickel, 0.2 to 0.4 percent of molybdenum, 0.01 to 0.02 percent of tungsten, 0.09 to 1.0 percent of vanadium, 0.07 to 0.08 percent of niobium, less than 0.2 percent of phosphorus, less than 0.1 percent of sulfur, and the balance of iron. The alloy structural steel material solves the problem of thermal crack damage of the conventional brake disc friction surface due to poor heat conductivity, and meanwhile, the brake disc material has enough thermal fatigue performance, high and stable friction coefficient, good abrasion resistance and thermal cracking resistance ...

Vascular stent cutting device and vascular stent cutting method

The invention discloses a vascular stent cutting device and a vascular stent cutting method, belonging to the technical field of medical apparatus processing equipment. The vascular stent cutting device comprises an X-X workbench, a platform, a laser cutting head system and a control system, wherein the X-X workbench is a two-dimensional movement feeding platform which is composed of an X-axis linear motor capable of horizontally moving along the X-axis and an X-axis rotating motor capable of rotating around the X-axis; the X-axis rotating motor is provided with a workpiece fixture; the platform is in counter weight with the X-X workbench; the laser cutting head system comprises a laser generator and a Z workbench; and the Z workbench is a moving platform which is composed of a Z-axis servo motor capable of moving along the vertical direction. A processing and cutting device for producing a vascular stent provided by the invention realizes that the production efficiency of the vascular ...

Weighing method based on digital sensor multiple platforms static state railroad track scale

The invention relates to a weighing method based on a digital transducer multi-platform static railroad track scale, (1) address codes of every digital transducer in the weighing system are established and stored in a digital processor, a digital transducer stores the own address code; (2) weigher quantity of the weighing system is established, the weigher quantity includes the quantity of single weighers and the quantity of assembled weighers which are randomly assembled from every single weighers, the weigher quantity is stored in the digital processor; (3) the corresponding relationships of every weigher and the digital transducer address codes are established and stored in the digital processor; (4) the digital processor collects weighing data of every digital transducer and generates weighing information of every separately functioned single weigher and assembled weigher according to corresponding relationships of every weigher and digital transducer address codes; (5) according to ...

Temperature measurement device for double layer liquid metal sodium pipeline and its mounting method

The invention discloses temperature measuring equipment used for a double layer liquid metallic sodium pipeline, and an installing method thereof. The equipment consists of a pipeline, a sleeve chuck and a temperature thermocouple, wherein, the temperature thermocouple extends into the pipeline and is fixed in the pipeline in a sealing way by the sleeve chuck; the head of the pipeline is pressed on the inner layer pipeline of the double layer pipeline. The installing method of the equipment comprises the following steps: the outer layer pipeline of the double layer pipeline is cut into an elliptic outer layer pipeline which is provided with holes and then sheathed on the pipeline; the method is characterized in that (1) the head of the pipeline sheathed with the elliptic outer layer pipeline is pressed on the outer wall of the inner layer pipeline; (2) the pipeline and the elliptic outer layer pipeline, as well as the elliptic outer layer pipeline and the pipeline are respectively welded ...

Alloy structural steel material for brake discs of high-speed motor train unit vehicles

The invention discloses an alloy structural steel material for brake discs of high-speed motor train unit vehicles, which belongs to the technical field of materials for brake discs. The alloy structural steel material comprises the following chemical components in percentage by weight: 0.26 to 0.30 percent of carbon, 0.8 to 1.0 percent of silicon, 0.7 to 0.9 percent of manganese, 0.9 to 1.0 percent of chromium, 0.6 to 0.8 percent of nickel, 0.2 to 0.4 percent of molybdenum, 0.01 to 0.02 percent of tungsten, 0.09 to 1.0 percent of vanadium, 0.07 to 0.08 percent of niobium, less than 0.2 percent of phosphorus, less than 0.1 percent of sulfur, and the balance of iron. The alloy structural steel material solves the problem of thermal crack damage of the conventional brake disc friction surface due to poor heat conductivity, and meanwhile, the brake disc material has enough thermal fatigue performance, high and stable friction coefficient, good abrasion resistance and thermal cracking resistance ...

Process for replacing organic polymer in dry mixed mortar by using active fly ash

A method for replacing the organic polymer in dry-mixed mortar by activated fly ash comprises the following two steps that: step 1, the fly ash activation is as follows: firstly, I-grade fly ash and II-grade fly ash are screened out by means of an air grading method with 80 percent of the particle diameters of the I-grade fly ash ranging between 40 and 80 um and above 80 percent of the particle diameters of the II-grade fly ash ranging between 10 and 80 um; secondly, physical activation of fly ash is carried out and a Raymond mill is adopted to grind the screened out the fly ash so as to ensure that above 85 percent of particle diameters are of between 1 and 7 um; thirdly, alkaline matter with the weight ratio equal to 3 to 5 percent is added in and mixed with the fly ash so as to carry out chemical reaction; step 2, according to different uses, the incorporation proportion of the fly ash is determined and is 20 percent to 40 percent of cement consumption, thereby reducing 30 to 50 percent ...

Container vehicle double box separate weighing method

The invention relates to a weighing method by box-dividing of a container vehicle dual-box carrying, belonging to the weighing field of a container truck which carries the container. The method comprises the following steps: (1) all vehicle types and data parameters of trailer are memorized; (2) a mathematic model of 1 equal to A plus (P3 minus P'3) multiplied by ((C33 plus 1')/ Gcos Theta) plus delta of the center 1 of gravity of goods along the length direction of the container and a weight mathematic model of the front container and the rear container of G1 equal to G(3L' minus 2l)/2L' and G2 equal to G(2l-L')/ 2L' are established and written into recognition management software; wherein, A is a constant ranging from 400mm to 1000mm; Dheta is ranging from 0 DEG to 30 DEG; Delta is a correction coefficient; (3) data of the full vehicle weight W and weight of all axles under static heavy vehicle state are recorded, the total weight G of goods is equal to W minus T by calculation; (4) the ...

Stepless damping-force adjustable shock absorber

The invention relates to a stepless damping-force adjustable shock absorber belonging to the technical field of vehicle shock absorption. The stepless damping-force adjustable shock absorber comprises an upper base, a lower base, an upper cylinder cover, a lower cylinder cover, a piston rod, a piston, a working cylinder, an oil storage cylinder and the like. The stepless damping-force adjustable shock absorber is characterized in that the left side of the lower base is provided with a short cylinder, the center of the short cylinder is radially provided with crossed through holes which are communicated with four through holes on a left end surface, and an electro-hydraulic proportional valve and a safety valve are installed in through holes of the lower base; a bent oil channel is arranged on the upper cylinder cover and is provided with two openings, one opening is communicated with a working cavity, and the other opening is communicated with an oil pipe; and the joint of the piston and ...

Method for preparing hexabromocyclododecane

The present invention discloses a preparation method of hexabromocyclododecane. In the method, bromine and cyclododecatriene are simultaneously dropped in the mixed solvent of substances, which are used for providing halogen ions, and protic solvent; the molar ratio of the bromine and the cyclododecatriene is equal to 3 to from 3.5 to 1; thus the hexabromocyclododecane can be prepared through the reaction. Compared with the hexabromocyclododecane prepared in the prior art, the hexabromocyclododecane prepared in the method has an increased melting point, which reaches above 186 DEG C. The preparation method has the advantages of low cost, simple operation, safety, environmental protection, and suitability for the industrial application.

Motor engine electric control fuel oil spraying system

The invention discloses a motorcycle engine electronic control fuel injection system, and comprises an electronic control unit, and a sensor and an executive mechanism connected with the electronic control unit; the sensor comprises a crankshaft position signal generator, a crankshaft position sensor and a throttle position sensor corresponding to the crankshaft position signal generator, an intake pressure sensor communicated with an air intake tube, an intake air temperature sensor communicated with the air intake tube, a cylinder body temperature sensor installed on the engine body, and an oxygen sensor arranged on an exhaust tube, wherein, the executive mechanism comprises an idle speed control valve, an electric fuel pump, a fuel pressure regulator, an oil ejector and an ignition coil. The invention has the advantages that the design is reasonable, the structure of the system is perfect, the operating performance is stable and reliable, and the engine combines the electronic control ...

Scraper type cantilever conveyer

The invention relates to tunnel mining and conveying machinery, in particular to a scraper type cantilever conveyer which solves the problems of low material conveying efficiency and the like of the cantilever belt conveyer in the material conveying process in the prior art. A front chute of the scraper type cantilever conveyer is articulated with a rotary table of a second conveyer; one end of a lifting oil cylinder is articulated with the rotary table of the second conveyer of a tunneling machine, and the other end of the lifting oil cylinder is articulated with the front chute; the purpose of adjusting the height of the tail of the scraper conveyer can be realized by controlling the stroke of the lifting oil cylinder; one end of a rotary oil cylinder is articulated with a connecting frame, the other end of the rotary oil cylinder is articulated with the rotary table, and the elasticity of the oil cylinder can enable the rotary table to drive the conveyer to swing left and right for a ...

Temperature measurement device for double layer liquid metal sodium pipeline and its mounting method

The invention discloses temperature measuring equipment used for a double layer liquid metallic sodium pipeline, and an installing method thereof. The equipment consists of a pipeline, a sleeve chuckand a temperature thermocouple, wherein, the temperature thermocouple extends into the pipeline and is fixed in the pipeline in a sealing way by the sleeve chuck; the head of the pipeline is pressed onthe inner layer pipeline of the double layer pipeline. The installing method of the equipment comprises the following steps: the outer layer pipeline of the double layer pipeline is cut into an ellip tic outer layer pipeline which is provided with holes and then sheathed on the pipeline; the method is characterized in that (1) the head of the pipeline sheathed with the elliptic outer layer pipeline is pressed on the outer wall of the inner layer pipeline; (2) the pipeline and the elliptic outer layer pipeline, as well as the elliptic outer layer pipeline and the pipeline are respectively welded ...

Testing method for hydrogen permeation activity of pipe line steel attached with pyrite compound

The invention discloses a testing method for hydrogen permeation activity of pipe line steel attached with pyrite compound, which belongs to the technical field of pipe line steel. The hydrogen permeation activity of pipe line steel attached with pyrite compound and other corrosion products in the H2S environment is researched, and the method is suitable for sulfur-resisting pipe line steel higher than X52-X65 level. The oil and gas field environment can be accurately simulated, so that pyrite compound, which is the same as pyrite compound generated when the pipe line steel is in active service. can be generated on the surface of the pipe line steel, and the hydrogen permeation performance of the pipe line steel is tested by utilizing a double electrolytic technology. Compared with the prior art, the test method has the advantages that as pipe line active service environment is simulated accurately, parameters such as hydrogen diffusion coefficients of materials in the H2S environmentare ...

Method for producing cement retarder by using desulfurized gypsum to substitute natural gypsum

The invention relates to a method for producing a cement retarder from desulfurized gypsum instead of natural gypsum. The method comprises the following steps: the first step: the desulfurized gypsum is maintained at a temperature of 5-25 DEG C, the second step: the desulfurized gypsum is dried by adding a homogeneous substance as binder 20-30 wt% per ton of desulfurized gypsum during solidification process to allow hydration reactions, until the water content of desulfurized gypsum is less than 5%; the third step: the desulfurized gypsum is granulated by extrusion molding using a roller mill. The inventive method has the advantages of rapidness, low energy consumption, high yield and low cost.

Method and device for repairing single event upset in field programmable logic gate array

A method and a device for repairing single event upset in a field programmable logic gate array are disclosed, a high-reliability monitoring unit, which is connected with the field programmable logic gate array and used for realizing the detection and the repair of the single event upset, is set; a read-back process of a configuration memory of the field programmable logic gate array is implemented by the high-reliability monitoring unit in order to read configuration frames of the field programmable logic gate array, and original configuration frames, which are read from a non-volatile memory via a standard NVRAM interface, are then implemented by the high-reliability monitoring unit; the high-reliability monitoring unit compares the read-back configuration frames with the original configuration frames by bytes, when comparison error occurs on the configuration frames, it is judged that the single event upset in the configuration memory of the field programmable logic gate array occurs ...

Red factice medicament and preparation method thereof

The invention relates to a medical external medicament, in particular to a red factice medicament and a preparation method thereof. The red factice medicament comprises cefazolin sodium for injection, streptomycin sulfate for injection, borneol, muskiness, medical Vaseline and medical preservative. The method comprises the following steps: putting the cefazolin sodium powder for injection, the streptomycin sulfate powder for injection, the borneol powder, the muskiness powder and the medical preservative in the diluted medical Vaseline in proportion; and sufficiently stirring and mixing to obtain the red paste medicament.

Expandable multi-frequency-point satellite navigation signal simulator

The invention relates to an expandable multi-frequency-point satellite navigation signal simulator which is formed by combining a plurality of single frequency point signal generating modules 4 that can be expanded according to the need; each single frequency point signal generating module is provided with a unified input and output interface; simulation data is output into the single frequency point signal generating modules through a network switch 1; and an interface control panel 2 is used for receiving the state information output by the modules, and a display unit 7 is used for displaying after treatment. The single frequency point signal generating modules can be flexibly configured according to the actual need.

Spaceborne processing platform resisting single event effect

The invention discloses a spaceborne processing platform resisting single event effect, which comprises a high-reliability monitoring unit, a non-volatile memory, a field programmable logic gate arrayand more than one DSPs, the high-reliability monitoring unit and other parts are interconnected by a local bus, and the field programmable logic gate array and the DSPs are interconnected by a high-speed bus; the high-reliability monitoring unit is used for detecting and repairing single event upset in the field programmable logic gate array and the DSPs. The invention is a spaceborne processingplatform having simple structural principal, convenient operation, high reliability, good stability and the ability of resisting the single event effect.

Ultrasonic fault detection method for heat check compound filling defect of thick-wall aluminum alloy pipe

The invention relates to an ultrasonic fault detection method for a heat check compound filling defect of a thick-wall aluminum alloy pipe and relates to the field of aluminum alloy production, solving a problem concerning nondestructive examination of the radial heat check compound filling defect of the thick-wall aluminum alloy pipe. The method comprises the following steps: firstly, selecting an ultrasonic fault detection device and an ultrasonic probe, grinding the probe to cause the probe to have certain curvature, choosing a reference sample and producing an artificial groove fault; then, debugging the ultrasonic fault detection device; then, detecting a sample of the radial heat check compound filling defect of the thick-wall aluminum alloy pipe according to debugged fault detection parameters, and carrying out scanning by moving the probe along the circumferential direction of a pipe workpiece; and finally, repeating the previous steps after the scanning and the detection are finished ...

Method for preparing dichlorohydrin and reaction device

The invention relates to improvement on a method for preparing dichlorohydrin by chlorinating glycerin and a reaction device. The chlorinating reaction is the series reaction of a reaction kettle and a sprinkling reaction tower which is filled with filler. The sprinkling reaction tower is sequentially provided with a placing filter zone, a hollow built-in sprinkling device zone and a placing filter zone from top to bottom. After viscosity decrease by kettle type preaction, the sprinkling reaction is carried out, the reaction contact is sufficient, the reaction time is long, the reaction efficiency is greatly enhanced, the conversion rate of the glycerin achieves 100%, and the reaction time is short and only needs 6-8 hours. The dichlorohydrin yield can be enhanced to more than 96%, and the yield can be enhanced to more than 99.0% by adding kreatine and strong acid mixing catalyst. The invention has the advantages of simple process flow, convenient reaction operation and high reaction efficiency ...

Leukocyte increasing apparatus

Ultrasonic inspection method of back end of thick-wall aluminum alloy pipe

An ultrasonic inspection method of a back end of a thick-wall aluminum alloy pipe relates to a method for inspecting the back end of the thick-wall aluminum alloy pipe and solves a problem that the inspection is not complete when a presently-adopted metallographical random inspection method is used for inspecting back end residual of a thick-wall aluminum alloy pipe workpiece. The ultrasonic inspection method is as follows: selecting an ultrasonic detector and a longitudinal wave normal probe and a transversal wave angle probe which are assorted with the ultrasonic detector; grinding an interface between the transversal wave angle probe and a workpiece into a cambered surface with curvature which is the same as the curvature of the pipe workpiece; debugging the ultrasonic detector and theprobes in a combined manner; then, by using the two probes, simultaneously carrying out ultrasonic inspection on a tail end of the thick-wall aluminum alloy pipe workpiece to be inspected; moving theprobes ...

DYNAMIC VIDEO ENCODING AND VIEW ADAPTATION IN WIRELESS COMPUTING ENVIRONMENTS

An apparatus of embodiments, as described herein, includes one or more processors to track data associated with movement of a computing device accessible to a user, and evaluate the data and compare a latency with latency thresholds, where the data indicates the latency and the latency thresholds associated with a frame. The one or more processors are further to maintain a current video encoding rate, if the latency is lower than a first latency threshold and greater than a second latency threshold. The current video encoding rate is decreased if the latency is equal to or greater than the first latency threshold, where the current video encoding rate is increased if the latency is lower than the second latency threshold. The one or more processors are further to present the frame at the computing device including one or more of a wearable device and a mobile device. 119-. (canceled)20. An apparatus comprising:one or more processors to:track data associated with movement of a computing device accessible to a user;evaluate the data and compare a latency with latency thresholds, wherein the data indicates the latency and the latency thresholds associated with a frame;maintain a current video encoding rate, if the latency is lower than a first latency threshold and greater than a second latency threshold;decrease the current video encoding rate, if the latency is equal to or greater than the first latency threshold;increase the current video encoding rate if the latency is lower than the second latency threshold; andpresent the frame at the computing device including one or more of a wearable device and a mobile device.21. The apparatus of claim 20 , wherein the data includes one or more of motion speed claim 20 , estimated frame size claim 20 , and current video encoding rate claim 20 , wherein the current video encoding rate is based on variable bit rate claim 20 , wherein the wearable device includes a head-mounted device claim 20 , wherein the mobile device ...

INTELLIGENT STORAGE CONTROL SYSTEM

An intelligent storage control system is provided in the present invention. The system includes a tower body, a delivery module, a drive module, a clamping module, an operation module, a control module, and a communication unit. When the control module receives a storage command transmitted by the operation module, the main controller is configured to analyze whether there is free storage space. If there is a free storage space, the control module controls the drive module to drive the delivery module to push the bicycle to the storage space of the tower body, and a serial number of the storage space is displaced on a display screen. The present invention can operate conveniently, and can save the footprint area of bicycles. 1. An intelligent storage control system , comprising a tower body in a hollow cylinder shape , a center of the tower body being provided with a central garage including a plurality of storage spaces for storing bicycles , characterized in that the system further comprises:a delivery module, comprising a loop track disposed on an inner wall of the tower body and a ferry parking space movable in the loop track, the ferry parking space being capable of clamping a bicycle to stand;a drive module, comprising a first drive unit for driving the ferry parking space to move within the loop track, and a second drive unit for driving the ferry parking space to clamp the bicycle;a clamping module, comprising a first clamping unit disposed in the ferry parking space for clamping the bicycle, and a second clamping unit disposed in the storage space for clamping the bicycle;an operation module, configured to receive an operation command for storing and picking up the bicycle from a user, and generate a corresponding operation signal according to the operation command;a control module, configured to control movement of the drive module, the delivery module and the clamping module after receiving the operation signal transmitted by the operation module; anda ...

THREE-DIMENSIONAL ROTATING INTELLIGENT STORAGE COMPARTMENT

A three-dimensional rotating intelligent storage compartment is provided in the present invention, which includes a tower body, a center of the tower body being provided with a central garage for storing bicycles, the central garage including a central pillar. A plurality of layers of placement plates are arranged around the central pillar, and each layer of the placement plates is equally divided into a plurality of independent storage spaces by a longitudinal partitioning plate. A longitudinal edge on one side of the longitudinal partitioning plate is fixed to the central pillar; each storage space is provided with a clamping mechanism for clamping bicycle. An inner wall of the tower body is longitudinally provided with a plurality of loop tracks, each loop track is provided with a plurality of ferry parking spaces, which are movable within the loop track, is capable of clamping bicycle in a standing position and capable of pushing bicycle to the placement plate. The present invention can operate conveniently, and can save footprint area of bicycles. 1. A three-dimensional rotating intelligent storage compartment , comprising:a tower body in a hollow cylinder shape, a center of the tower body being provided with a central garage for storing bicycles, the central garage having a cylindrical shape and including a central pillar;a plurality of layers of placement plates, arranged around the central pillar; wherein a spacing between adjacent upper and lower placement plates is greater than a height of a bicycle, and each layer of the placement plates is equally divided into a plurality of independent storage spaces by a longitudinal partitioning plate; a longitudinal edge on one side of the longitudinal partitioning plate is fixed to the central pillar, and a longitudinal edge on the opposite side is aligned with an edge of the placement plate; each storage space is provided with a clamping mechanism for clamping the bicycle; an inner wall of the tower body is ...

Adaptive foveated encoder and global motion predictor

An embodiment of an adaptive video encoder may include technology to determine headset-related information including at least one of focus-related information and motion-related information, and determine one or more video encode parameters based on the headset-related information. Other embodiments are disclosed and claimed.

Encapsulation structure with high density, multiple sided and exposed leads and method for manufacturing the same

The invention discloses an encapsulation structure with high density, multiple sided and exposed leads and method for manufacturing the same. The encapsulation structure includes a package, a die pad and a plurality of leads, wherein the die pad and the leads are disposed at a bottom of the package; bottom surfaces of the leads expose in a bottom surface of the package, and the leads extends towards multiple sides of the package until beyond the package; the package includes an integrated circuit provided on the die pad and connected with the leads, and a plastic package for packaging the integrated circuit, the die pad and the leads; a bottom surface of the die pad and the bottom surfaces of the leads are provided on the same horizontal plane; the leads comprise a first lead distant from the die pad. 1. An encapsulation structure with high density , multiple sided and exposed leads comprising:a package body, a die pad and a plurality of leads,wherein the die pad and the plurality of leads are disposed at a bottom of the package body; bottom surfaces of the plurality of leads expose in a bottom surface of the package body, and the plurality of leads extends towards multiple sides of the package body until beyond the package body;the package body includes an integrated circuit provided on the die pad and connected with the plurality of leads, and a plastic package body for packaging the integrated circuit, the die pad and the plurality of leads;a bottom surface of the die pad and the bottom surfaces of the plurality of leads are provided on the same horizontal plane;the plurality of leads comprise a first lead distant from the die pad;wherein the first lead comprises a straight portion extending along a horizontal plane, and one end of the straight portion extends beyond the package body;wherein the first lead also comprises a turning portion extending on a horizontal plane, the turning portion is connected to another end of the straight portion located within the ...

HOISTING SHEAVE SHAFT, HOISTING SHEAVE AND LUBRICATING DEVICE THEREOF

This invention discloses a hoisting sheave shaft, a hoisting sheave and a lubricating device thereof, where the hoisting sheave shaft is provided with a first oil injection channel extending axially; an oil inlet of the first oil injection channel is arranged on an end surface of the hoisting sheave shaft; the hoisting sheave shaft is also radially provided with at least one second oil injection channel; the second oil injection channel intersects with the first oil injection channel; and an oil outlet of the second oil injection channel is arranged on an outer circular surface of the hoisting sheave shaft. 1. A hoisting sheave shaft , wherein the hoisting sheave shaft is provided with a first oil injection channel extending axially , and an oil inlet of the first oil injection channel is provided on an end surface of the hoisting sheave shaft; the hoisting sheave shaft is provided with at least one second oil injection channel along a radial direction , and the at least one second oil injection channel intersects with the first oil injection channel; an oil outlet of the second oil injection channel is provided on an outer circular surface of the hoisting sheave shaft; when there are two or more second oil injection channels , the two or more second oil injection channels are different from each other in diameter such that the two or more second oil injection channels have the same flux when lubricating oil enters the second oil injection channels from the first oil injection channel2. A hoisting sheave claim 1 , comprising the hoisting sheave shaft of ; bearing seats respectively provided at two ends of the hoisting sheave shaft; a fixed sheave that is circumferentially provided and is sleeved on the hoisting sheave shaft; and at least one floating sheave sleeved on the hoisting sheave shaft; wherein the second oil injection channel is the same with the floating sheave in number claim 1 , and the oil outlet of the second oil injection channel corresponds to the ...

Methods, Systems, and Devices for Evaluating a Health Condition of an Internet User

Disclosed herein are methods, systems and devices for evaluating a health condition of an Internet user. In one embodiment, the method comprises acquiring Internet activity data associated with a plurality of users, the plurality of users including a first user; selecting a set of sample users from the plurality of users based on a plurality of specified Internet activities identified in Internet activity data associated with the first user; extracting characteristic data for the first user and the set of sample users from the Internet activity data; utilizing the characteristic data as at least one parameter of a health index calculation model; and calculating a health index for the first user based on the health index calculation model. 1. A method comprising:acquiring Internet activity data associated with a plurality of users, the plurality of users including a first user;selecting a set of sample users from the plurality of users based on a plurality of specified Internet activities identified in Internet activity data associated with the first user;extracting, from the Internet activity data, characteristic data for the first user and the set of sample users;utilizing the characteristic data as at least one parameter of a health index calculation model; andcalculating a health index for the first user based on the health index calculation model.2. The method of wherein characteristic data comprises one of e-commerce data claim 1 , web browsing data claim 1 , body mass index data claim 1 , a degree of an addiction to gaming claim 1 , a degree of preference for junk foods claim 1 , age claim 1 , or sex claim 1 , an indication of whether a user stays up late frequently claim 1 , the frequency of purchasing medical products over a given time period claim 1 , and whether a user performs manual labor.3. The method of wherein acquiring Internet activity data associated with a plurality of users comprises acquiring Internet activity data captured during a predefined ...

ADAPTIVE FOVEATED ENCODER AND GLOBAL MOTION PREDICTOR

An embodiment of an adaptive video encoder may include technology to determine headset-related information including at least one of focus-related information and motion-related information, and determine one or more video encode parameters based on the headset-related information. Other embodiments are disclosed and claimed. 124-. (canceled)25. An electronic processing system , comprising:a processor;memory communicatively coupled to the processor; and determine headset-related information including at least one of focus-related information and motion-related information, and', 'determine one or more video encode parameters based on the headset-related information., 'logic communicatively coupled to the processor to26. The system of claim 25 , wherein the logic is further to:adjust a quality parameter for an encode of a macroblock based on the focus-related information.27. The system of claim 26 , wherein the logic is further to:identify a focus region based on the focus-related information; andadjust the quality parameter for the encode to provide relatively higher quality for macroblocks inside the focus region as compared to macroblocks outside of the focus region.28. The system of claim 25 , wherein the logic is further to:determine a global motion predictor for an encode of a macroblock based on the motion-related information.29. The system of claim 28 , wherein the logic is further to:determine a hierarchical motion estimation offset based on a current head position from the motion-related information, a previous head position, and a center point.30. The system of claim 25 , wherein the logic is further to:encode a macroblock of a video image based on the one or more determined video encode parameters.31. A semiconductor package apparatus claim 25 , comprising:a substrate; and determine headset-related information including at least one of focus-related information and motion-related information, and', 'determine one or more video encode parameters based on ...

METHOD AND APPARATUS FOR ACQUIRING ROUTE POPULARITY IN ROAD NETWORKS

The present disclosure provides methods and an apparatuses for acquiring route popularity in road networks. One exemplary method includes: acquiring a plurality of points of interest (POIs) included in road networks and positioning data of a plurality of positioning terminals; mapping the positioning data of each positioning terminal to POIs included in the road networks to obtain one or more POIs associated with the positioning terminal; acquiring a travel route map of the positioning terminal according to the one or more POIs associated with the positioning terminal; acquiring a preferred travel route of the positioning terminal according to the travel route map of the positioning terminal; and aggregating the preferred travel routes of the plurality of positioning terminals to obtain a route popularity distribution map of the road networks. The present disclosure can address the technical problem of low efficiency in determining route popularity in road networks due to complex traffic data extraction and processing procedures. 1. A method for acquiring route popularity in road networks , comprising:acquiring a plurality of points of interest (POIs) in the road networks and positioning data of a plurality of positioning terminals;mapping the positioning data of each positioning terminal to the POIs in the road networks to obtain one or more POIs associated with the positioning terminal;acquiring a travel route map of the positioning terminal according to the one or more POIs associated with the positioning terminal;acquiring a preferred travel route of the positioning terminal according to the travel route map of the positioning terminal; andaggregating the preferred travel routes of the plurality of positioning terminals to obtain a route popularity distribution map of the road networks.2. The method according to claim 1 , wherein mapping the positioning data of each positioning terminal to the POIs in the road networks comprises:determining a positioning region ...

Adaptive bitrate coding for spatial audio streaming

Techniques are provided for spatial audio streaming using adaptive bitrate encoding and decoding in bandwidth limited virtual reality applications. A methodology implementing the techniques according to an embodiment includes calculating weight factors for audio channels associated with each of a plurality of microphones. The weight factors are based on the position and head angle, relative to the microphones, of a user wearing a head mounted display (HMD). The method also includes encoding and decoding the audio channels, for transmission to the HMD, at a selected bitrate, the bitrate based on the weight factor for the audio channel. The method further includes applying an adaptive gain compensation to each of the received and decoded audio channels, the gain compensation also based on the weight factor. The method further includes mixing the resulting gain compensated channels to generate a stereo audio signal to be played through speakers of the HMD.

Overwinding buffer device and method for vertical hoisting system

An overwinding buffer device and method for a vertical hoisting system are disclosed. The vertical hoisting system comprises a derrick and a hoisting container. A hydraulic buffer device is disposed on the derrick. The hydraulic buffer device comprises at least one buffering hydraulic cylinder and buffering pressure rollers corresponding to the buffering hydraulic cylinders. The buffering hydraulic cylinders are disposed on the derrick. Piston rods of the buffering hydraulic cylinders are disposed horizontally and outer ends of the piston rods face towards the hoisting container. The buffering pressure rollers are horizontally fixed on an outer side wall of the hoisting container and arced surfaces of the buffering pressure rollers face towards the piston rods of the buffering hydraulic cylinders.

Automated construction method for anchor bolt

An automated construction method for an anchor bolt, the automated construction method comprising the following steps: using an oil pressure sensor for acquiring an oil pressure signal, and using a laser ranging sensor for acquiring an advancing signal of a drill box (5000); according to the oil pressure signal, controlling a support oil cylinder (6000) to drive a support plate (4200) to advance and stop moving, so as to support a tunnel wall and guide an anchor bolt (9); after the support plate stops moving, injecting water into the anchor bolt by using a water injection device; controlling a hydraulic motor (5100) on the drill box to rotate reversely, so as to drive the anchor bolt to rotate forwards; and according to at least one of the oil pressure signal and the advancing signal, controlling a drilling oil cylinder (7000) to drive the drill box to advance and stop moving, such that the anchor bolt, which rotates forwards, advances to drill. The automated construction method for an anchor bolt has the advantages of a high automation degree, a high anchor bolt supporting operation efficiency and low labor intensity for workers.

Bolt operation assembly

The present disclosure relates to a field of tunnel supporting of a coal mine, and in particular to a bolt operation assembly. The bolt operation assembly includes a base, a first shaft rotatably mounted on the base, and a second shaft. A driver is connected to the first shaft to drive the first shaft to rotate, and the second shaft is inserted in a first through hole and movable along an axial direction of the second shaft. The bolt includes a bolt body, a drill bit, a pre-tightening nut and a limiting block. The bolt body has a third through hole running through the bolt body in an axial direction of the bolt body, and the third through hole is configured to communicate with each second through hole. When the first shaft drives the pre-tightening nut to rotate in a first direction, the pre-tightening nut drives the bolt body to rotate in the first direction, and when the first shaft drives the pre-tightening nut to rotate in a second direction opposite to the first direction, the pre-tightening nut applies a pre-tightening tensile force facing away from the first end of the first shaft to the bolt body. The bolt operation assembly according to embodiments of the present disclosure has advantages of a high bolt supporting operation efficiency and a low labor intensity of a worker.

Adaptive foveated encoder and global motion predictor

An embodiment of an adaptive video encoder may include technology to determine headset-related information including at least one of focus-related information and motion-related information, and determine one or more video encode parameters based on the headset-related information. Other embodiments are disclosed and claimed.

Displacement monitoring system and method for mine hoisting device

A displacement monitoring system and method for a mine hoisting device are 5 provided. The system includes an image processing device, a laser scanner and at least two image acquiring devices. The image processing device is electrically connected with the laser scanner and the image acquiring devices. The at least two image acquiring devices are arranged at different positions, and may shoot a to-be detected part of the mine hoisting device in a hoisting process of the mine hoisting 10 device. The image processing device determines position information of the to-be detected part based on contour data of the to-be-detected part obtained by scanning of the laser scanner and images containing the to-be-detected part shot by the image acquiring devices, and determines a displacement of the to-be-detected part based on the position information at different time points.

Method and device for preventing impact vibration of hoisting system

连杆机构斜盘式内控可变排量汽车空调压缩机主轴总成

一种连杆机构斜盘式内控可变排量汽车空调压缩机主轴总成，包括主轴、推盘、斜盘体、连杆、长销、滑盘、球套、复位弹簧和启动弹簧；其中，长销与连杆之间的连接方式为过盈配合，长销与推盘支耳之间、长销与斜盘支耳之间的连接方式均为间隙配合；进一步，在斜盘体上设置有第一配重体，并开设有直线凹槽，在推盘上设置有第二配重体，同时应用SolidWorks三维设计软件优化汽车空调压缩机主轴总成的整体结构，减小汽车空调压缩机中、大排量工作状态下主轴总成的偏心距；从而减小汽车空调压缩机的机械震动，降低整体运行噪音，减小斜盘总成在高速运转状态下对主轴的冲击强度和运行噪音，提高空调压缩机的运行稳定性和工作效率。

Adaptive foveated encoder and global motion predictor

An embodiment of an adaptive video encoder may include technology to determine headset-related information including at least one of focus-related information and motion-related information, and determine one or more video encode parameters based on the headset-related information. Other embodiments are disclosed and claimed.

Adaptive foveated encoder and global motion predictor

An embodiment of an adaptive video encoder may include technology to determine headset-related information including at least one of focus-related information and motion-related information, and determine one or more video encode parameters based on the headset-related information. Other embodiments are disclosed and claimed.

Environmentally friendly anti-termite photovoltaic wire harness

The present application discloses an environmentally friendly anti-termite photovoltaic wire harness, comprising a plurality of cable assemblies. Each cable assembly comprises two cables, each cable having a binding section and a non-binding section; all of the binding sections of the plurality of cable assemblies extend along the same main line, the non-binding sections extend along a branch line, and the non-free end of each binding section is bound together with another binding section by means of binding tape. In two cables of the same cable assembly, the free end of the binding section and the free end of the non-binding section of one cable are provided with a positive connector and a negative connector, respectively, and the free end of the binding section and the free end of the non-binding section of the other cable are connected to a negative connector and a positive connector, respectively. Each cable comprises a tin-plated soft conductor, an insulating jacket, an anti-termite jacket, and an outer jacket, which are sleeved in sequence from inside to outside.

Displacement monitoring system and method for mine hoisting device

Method and device for preventing impact vibration of lift system

A method and device for preventing impact vibration of a lift system include: acquiring a load weight in a lift container; obtaining preset basic parameters of a lift system; according to the load weight in the lift container and the basic parameters of the lift system, determining a fundamental wave vibration period of a lifting rope when the lift system starts; according to the fundamental wave vibration period and preset calculation parameters of the lift system, determining time-varying simulation parameters of an acceleration of the lift system during a lifting process; according to determined time-varying simulation parameters of the acceleration, lifting the lift container.

Hoister head sheave shaft, hoister head sheave and lubricating device therefor

A hoister head sheave shaft, being provided with a first oil filling passage (12) extending axially, an oil inlet of the first oil filling passage (12) being provided on an end face of the hoister head sheave shaft (9); the hoister head sheave shaft (9) further comprises at least one second oil filling passage (121) provided in a radial direction, the at least one second oil filling passage (121) intersecting the first oil filling passage (12), and an oil outlet of the at least one second oil filling passage (121) being provided on the outer circumferential face of the hoister head sheave shaft (9). The present invention further relates to a hoister head sheave and a lubricating device therefor.

一种汽车用空调压缩机外部油分离接头

一种汽车用空调压缩机外部油分离接头，包括：壳体，在壳体内部分别开设有上下贯通的高压冷媒通道和低压冷媒通道；其中：高压冷媒通道为曲线形，中部水平区域中开设有圆柱形扩径容腔，其内部镶置有圆柱形旋转体，形成间隙配合，并能够在扩径容腔内沿其轴线自由转动，在圆柱形旋转体的外表面上开设有若干个斜向沟槽。该油分离接头采用圆柱形旋转体带动高压冷媒气体旋转分离和利用涡流空间结构促使高压冷媒气体涡旋流动的方式，使来自汽车空调压缩机中融合有润滑油的高压冷媒气体实现两级分离，油气分离率高，能够有效减低汽车空调系统中含油量，提高和保证汽车空调系统的工作效率和使用寿命，同时还具有结构简洁，适用宽泛，安装方便等特点。

Composicion de fosfinato de alquilo, y metodo de preparacion del mismo y uso del mismo.

Se proporciona una composición de fosfinato de alquilo, que comprende: 99,5-99,9999 % en peso de un fosfinato de alquilo; y 0,0001-0,5 % en peso de un fosfato de cadena larga. El tamaño de partícula D95 de la composición de fosfinato de alquilo es inferior a 20 micrómetros; el número de átomos de carbono en el fosfato de cadena larga es de 16-24. La composición del polvo de fosfinato de alquilo puede evitar la aglomeración de retardante de llama en polvo ultrafino durante el uso y mejorar el efecto de dispersión del polvo de fosfinato de alquilo ultrafino en resinas epoxi y poliuretano, evitando así puntos blancos granulares cuando se utilizan en materiales tales como placas de circuito impreso y películas; asimismo, la composición puede cumplir los requisitos de procesamiento y uso de retardantes de llama de fosfinato de alquilo y no reduce la eficacia retardante de llama de los retardantes de llama de fosfinato de alquilo. También se proporciona un método de preparación y un uso de la composición de fosfinato de alquilo.

一种甘蔗田间防护罩

本实用新型公开了一种甘蔗田间防护罩，其结构包括帽檐、脖绳、固定块一、压钮和防护板，该甘蔗田间防护罩，通过在帽檐上端设置有防护板，首先拨动第一框架和第二框架，使第一框架和第二框架分别通过转轴在帽檐上端进行传动，可以调节第一框架和第二框架的遮挡位置，方便根据太阳的照射方向进行调节，通过遮阳网能够对使用者脖颈部进行防晒和保护；通过拉动固定块二，使固定块二通过连接杆带动卡块在固定框内侧进行滑动，使卡块解除与固定框上端的固定，即可将防护网进行拆卸清洗，达到了能够对使用者脸部左右两侧进行防护和对脖子后背进行防护，并且能够将防护网进行快速拆卸的优点。

Caixa dobrável para armazenamento e transporte

"caixa dobrável para armazenamento e transporte", patente de modelo de utilidade de uma caixa (c) que pode ser dobrada quando não estiver em uso e, dessa forma, não necessita de espaço demasiadamente grande quando for guardada, que é compreendida por possuir uma base (6) mais rígida que as laterais (2 a 5) da caixa (c) e que pode ser dobrada ou desdobrada por meio da utilização de hastes em forma de "u" (9 e 10) e cuja abertura frontal ou lateral pode ser feita por meio de zíperes (11 e 12), um par de alças (13) para seu carregamento e cujo conteúdo pode ser verificado por meio de visores (14 e 15) e a identificação do conteúdo ou de seu proprietário pode ser feito pela utilização de um porta-etiquetas (17).

Phase-locked loop, radar system and method for randomizing initial phases of fmcw signals

Embodiments of the present disclosure disclose a phase-locked loop, a radar system and a method for randomizing initial phases of FMCW signals. The phase-locked loop includes a phase-locked loop circuit and a random control signal generator. In response to a clock signal indicating a respective target moment of one or more target moments, the random control signal generator inputs a random control signal to the phase-locked loop circuit, so that the accumulated value of the plurality of fractional frequency division values is converted into a random value, and that a plurality of phase differences respectively corresponding to the plurality of chirp signals form a non-arithmetic sequence.

Performance prediction method of electromechanical equipment based on probabilistic deep neural network model

Encapsulation structure with exposed high-density multi-sided pins and production method therefor

Alkyl phosphinate composition, and preparation method therefor and use thereof

Provided is an alkyl phosphinate composition, comprising: 99.5-99.9999 wt % of an alkyl phosphinate; and 0.0001-0.5 wt % of a long-chain phosphate. The particle size D95 of the alkyl phosphinate composition is less than 20 microns; the number of carbon atoms in the long-chain phosphate is 16-24. The composition of alkyl phosphinate powder can avoid agglomeration of ultra-fine powder flame retardant during use and improve the dispersion effect of ultra-fine alkyl phosphinate powder in epoxy resins and polyurethane, thereby avoiding granular white spots when used in materials such as printed circuit boards and films; moreover, the composition can meet processing and use requirements for alkyl phosphinate flame retardants, and does not reduce the flame retardant efficiency of alkyl phosphinate flame retardants. Also provided are a preparation method for and a use of the alkyl phosphinate composition.

Pre-training of computer vision foundational models

Examples are provided for pre-training a computer vision foundation model. A representative method comprises curating a pre-training database of image-text pairs from weakly labeled data. Language is encoded of text descriptions from the image-text pairs. The images of the image-text pairs are encoded using a hierarchical vision transformer with shifted windows and convolutional embedding. Based on the encoded images and the encoded language, the computer vision foundation model is pre-trained via unified image-text contrastive learning.

Adaptive foveated encoder and global motion predictor

An embodiment of an adaptive video encoder may determine headset-related information including at least one of focus-related information and motion-related information and determine one or more video encode parameters based on the headset-related information. The adaptive video encoder may also encode a macroblock of a video image based on the one or more determined video encode parameters. Other embodiments are disclosed and claimed.