124 results about "Technical risk" patented technology

The invention discloses a semi-physical simulation testing platform of a train control network, which comprises a vehicle-mounted electrical control system, a software simulation control system and / or a physical control system and a data acquisition interactive system, wherein the software simulation control system and / or the physical control system is connected with the vehicle-mounted electrical control system; the data acquisition interactive system is connected with the vehicle-mounted electrical control system so as to convert a signal output by the vehicle-mounted electrical control system into a digital signal or convert the digital signal into an input signal required by the vehicle-mounted electrical control system; and the data acquisition interactive system is connected with the software simulation control system and / or the physical control system so as to convert the digital signal connected and output by the software simulation control system and / or the physical control system into a switching value signal or convert the switching value signal into the digital signal required by the software simulation control system and / or the physical control system. The semi-physical simulation testing platform of the train control network is capable of comprehensively implementing evaluation and verification on the design of a train network control system, eliminating possibledesign errors, rapidly positioning faults to ask for reasons, and reducing the production debugging cost and the technical risks of real trains.

A computer system assesses the overall risk for different technologies for an organization. Technologies may be evaluated by obtaining severity levels and environmental risk scores for the vulnerabilities associated with the technologies. Each severity level measures a possible risk level of a corresponding vulnerability, while each environmental risk score is based on the organization's environment. Technology risk scores are then determined from the severity levels and the environmental risk scores. Each technology may then be categorized from a statistical distribution of the technology risk scores. An indexed risk score for each technology may also be determined based on time trending variables. Inputs may be a number of vulnerabilities, blended advisory / severity scores, and a standard deviation of the blended advisory / severity scores, and the results then provide behavior forecasting of the technologies. Further evaluation of the technologies may be performed to determine a risk versus reward model for the different technologies.

The invention relates to a method for detecting collision of a curtain wall through the BIM technology. The method comprises the following steps that a parameterized curtain wall BIM model is established in BIM software; internal collision detection is conducted on all model units forming the BIM model in the prior step; the curtain wall BIM model and an external relevant professional BIM model are overlapped and integrated to form a task model and external collision detection is conducted on the task model; after external collision detection meets requirements, collision data are output and a detection report is submitted. According to the method, by establishing the parameterized curtain wall BIM model, conducting internal collision detection on the model and conducting external collision detection on the relevant professional BIM model, the optimal solution of curtain wall designing parameters can be solved easily by using the collision data detected through the method, therefore, it is guaranteed that the scheme is practicable after BIM model adjustment, efficient design and construction of complex curtain wall systems in large construction engineering projects are realized, and meanwhile, the technical risk of the projects is lowered. The method for detecting collision of the curtain wall through the BIM technology can be applied to curtain wall designing.

A risk framework is described for computing application risks. A risk value associated with each of one or more products included in an application may be determined. The risk value associated with each of the products may be classified as declining software risk, not-permitted software risk, declining hardware risk, and not-permitted hardware risk and may be weighted and summed to produce a technical risk score. A business criticality score may be computed based on how critical the application is to a business. The technical risk score and the business criticality score may be weighted and summed to produce a composite risk score. Based on one or more of the scores, planning may be conducted and strategies may be formulated to mitigate risk.

The invention belongs to the field of the Internet, and particularly relates to a crawler identification method and device for a website server. The method comprises the following processes that: on the basis of the IP (Internet Protocol) address of a user, marking an access user; dividing user access requests, classifying the user access requests with the same request resource, request domain name, subdomain name and access path in the user access request into the same type of access requests; on the basis of resource type of each class of access requests, dividing a core resource access request; on the basis of the request time continuity, the request content continuity, the access duration and the access frequency of the core resource access request of the access user, carrying out crawler access judgment; and processing the user who is judged as crawler access. By use of the method, through various means, the crawler behavior of the user is effectively identified, implementation cost is low, a coupling degree with website businesses is low, and transportability is high. The method is independent of website business service logic, is easy in updating and upgrading and is low in operation and maintenance cost and technical risks.

The invention discloses a cold welding and repairing technology of crankshaft cracks of a large reciprocating compressor by manual argon arc welding and relates to the technical field of welding, aiming to solve the technical problems that the technical risk is high, the success rate is low, major mechanical accidents are easy to cause by thermal stress and thermal deformation of the traditional welding process, and the like when non-destroyed defects of cracks, abrasions, bending, deformation, and the like which are generated for a crankshaft of a large reciprocating compressor. The technology comprises the following steps of: clearing away crankshaft neck cracks to be repaired; adjusting the coaxiality and the parallel misalignment; evaluating the welding process; hoisting and positioning; marking lines to divide areas and welding for three times; detecting and controlling the deformation in the welding process; and grinding. The invention is suitable for the cold welding and repairing of crankshaft cracks of the large reciprocating compressor by manual argon arc welding.

The invention relates to a simulation testing device and a testing method of a central air conditioner automatic control system, and belongs to the technical field of construction energy conservation and automatic control. The simulation testing device and the testing method can achieve tests on basic operation functions, full-automatic operation functions and the energy-saving effect of an object to be tested, and testing is more comprehensive. The simulation testing device and the testing method are achieved by means of a simulation technology, and compared with a traditional testing method, the simulation testing method does not need water system equipment building, is little in investment, little in technical risk, low in operation cost and high in implementability.

The invention discloses a preparation process of high-activity anti-condensation calcium hydroxide. The preparation process comprises the following steps: (1) high-temperature calcination treatment; (2) crushing screening of calcium oxide stones; (3) digestion reaction; (4) filtration and dewatering treatment; (5) baking drying; (6) screening and filtration treatment. The invention provides a technical scheme of the preparation process of the high-activity anti-condensation calcium hydroxide. An integrated process production process is automatically controlled, the labor strength of workers islow, the operation security performance is also improved, and technical risks are avoided; moreover, a calcium hydroxide product prepared by adopting the preparation process has the advantages of high quality and stability, energy consumption loss during production is low, the yield of the product is high, the purity is high, the production cost is effectively reduced, and the economic benefit isimproved.

The invention discloses an aircraft braking system dynamic load spectrum integration test method. According to actual lifting force characteristics of an aircraft during landing, a dynamic load spectrum of aircraft wheel loads on the speed of the aircraft can be established; in a braking system integration test, the aircraft wheel loads are regulated in real time according to the dynamic load spectrum, and a braking system dynamic integration test is conducted. In the aircraft braking system dynamic integration test, accurate simulation of the actual lifting force characteristics of the aircraft during landing is realized by means of dynamic regulation of the aircraft wheel loads, and consistency between in-plant test conditions and external-field actual working conditions is improved. By means of the aircraft braking system dynamic load spectrum integration test method, performance tests can be conducted on braking systems of various models of aircrafts more strictly, accuracy and the degree of confidence of braking system test results are increased, as a result, the number of times of test gliding and test flights for installation of the braking systems can be greatly reduced, a large amount of expenditure is saved, and the technical risk is lowered. Meanwhile, the aircraft braking system dynamic load spectrum integration test method can also provide accurate and comprehensive test data for take-off and landing of the aircrafts under complicated meteorological conditions, and therefore safety and reliability of aircraft braking are improved.

The embodiment of the invention provides a process monitoring method and device. The method comprises the following steps: monitoring a system parent process; when the creation of a sub-process by the parent process is monitored, importing an environment monitoring module into the new sub-process; transmitting a monitoring command to the environment monitoring module, and monitoring the sub-process through the environment monitoring module; when running of the sub-process is in accordance with a monitoring strategy in the environment monitoring module, acquiring the running data of the sub-process. According to the process monitoring method, a monitoring program is dynamically injected into the sub-process during establishment of the sub-process by the parent process without making any change to a source code under the situation of not influencing normal running, so that monitoring of system processes is realized, the technical risk is low, and the development cost is low. Moreover, when update or repair of bugs is required, involvement of a large quantity of source codes is avoided, so that the technical threshold is low, and greater convenience is brought to modification and use.

The invention provides an oxygen-enriched tiny-oil ignition combustion-stabilizing device. The outer side of an ignition fuel duct is sleeved with an ignition-fuel oxygen duct and a pulverized-coal oxygen duct which are coaxial with the ignition fuel duct; the outer side of the pulverized-coal oxygen duct is provided with a chamber for premixing pulverized-coal and oxygen; the chamber for premixing pulverized-coal and oxygen is a cone which is small in a left-side inlet and big in right-side inlet; the right end of the pulverized-coal oxygen duct is positioned on the left-side inlet of the chamber for premixing pulverized-coal and oxygen; the right end of the ignition-fuel oxygen duct is positioned on the right-side inlet of the chamber for premixing pulverized-coal and oxygen; a right-end outlet of the ignition-fuel oxygen duct and an ignition head of an igniter are positioned on the right side of a right-end outlet of the ignition fuel duct; a right-end outlet of the pulverized-coal oxygen duct is sealed; a plurality of gas orifices surrounding the pulverized-coal oxygen duct are arranged near the right-end outlet of the pulverized-coal oxygen duct; and the gas orifices and the pulverized-coal oxygen duct are at an included angle of greater than 45 degrees and less than 90 degrees in the axial direction. The oxygen-enriched tiny-oil ignition combustion-stabilizing device has the advantages of simple structure, little technical risk, extensive coal applicability, convenient maintenance and low cost.

The invention relates to a large-scale wind power-containing power transmission network planning system considering risks. The large-scale wind power-containing power transmission network planning system comprises a database module, an input module, an analysis module, a planning module and an output module, wherein the database module is used for storing wind speed data, load data and power equipment data; the input module is used for acquiring required data from the database module and the outside of the system; the analysis module is used for calculating an economic risk index, a technical risk index and investment cost of a planning scheme according to the input data and acquiring security constraint conditions of a power transmission network; the planning module is used for building a power transmission network planning model, determining the power transmission network planning model according to the economic risk index, the technical risk index, the investment cost and the security constraint conditions of the power transmission network, obtained by the analysis module, and acquiring the power transmission network planning result considering the economic risk and the technical risk; and the output module is used for outputting the power transmission network planning result. Compared with the prior art, the risks caused by wind farm output uncertainty can be lowered when the investment cost is controlled; and the large-scale wind power-containing power transmission network planning system has the advantages of high efficiency, comprehensive factor consideration and the like.

The invention discloses a self-controlled computer mainboard, which comprises a COMe mainboard, a CPCI pinboard, and a power module for supplying power for the COMe mainboard and the CPCI pinboard. The COMe mainboard comprises a processor, a bridge ribbon and a memory; the CPCI pinboard comprises a PCIe to PCI bridge chip; the processor adopts a Loongson 3A serial processor; the bridge ribbon adopts a Loongson 2H chip; the memory adopts a DDR3 memory grain chip; the Loongson 3A serial processor is connected with the Loongson 2H chip through an HT bus; the Loongson 3A serial processor and the Loongson 2H chip are connected with the DDR3 memory grain chip through memory channels; an EJTAG debugging interface used for carrying out reliability testing on the Loongson 3A serial processor and the Loongson 2H chip is also arranged on the COMe mainboard. According to the self-controlled computer mainboard provided by the invention, the Loongson 3A serial processor and the Loongson 2H matched bridge chip with full autonomy proprietary intellectual property rights are adopted, and the hardware interface of a mainboard platform is arranged, so that higher product domestication rate can be realized, the demands on information safety and self-controllability are met, and the technical risks and the uncontrollable hidden dangers in product use and maintenance are eliminated.

The invention discloses a gesture identification method used for a virtual reality display output device and the virtual reality display output device. The identification method comprises the steps of obtaining a first video from a first camera and obtaining a second video from a second camera; separating out a first plane gesture on first plane information of a hand graph in the first video from the first video, and separating out a second plane gesture on second plane information of a hand graph in the second video; converting the first plane information and the second plane information into spatial information in a binocular imaging manner, and generating a spatial gesture comprising the spatial information; obtaining an executive instruction corresponding to the spatial gesture; and executing the executive instruction. According to the method, a three-dimensional gesture can be identified by adopting a general camera, so that the cost and technical risk of the virtual reality display output device are greatly lowered.

The invention relates to the technical field of low-temperature refrigeration, in particular to a superfluid helium low-temperature cycle system comprising a compressor unit, a helium liquefaction unit, a first storage tank, a second storage tank and a superfluid helium cycle unit. The ejector-based superfluid helium cycle system is designed, thus a mechanical moving part is omitted for existing superfluid helium cycle, design difficulties of these mechanical moving parts are avoided, the requirement of long-term maintenance-free operation of the low-temperature cycle system is met, meanwhile,reliability of cycle operation is improved, technical risk is lowered, and the size of the whole low-temperature cycle system is kept more compact.

The invention relates to an oil transportation pipeline leakage flow estimating device and method based on KPCA-RBF curve fitting, and belongs to the technical field of oil transportation pipeline detection. According to the estimating method, the dimensionality of data, in which non-linear relationships exist, of an oil transportation pipeline is reduced by using kernel principal component analysis (KPCA), and therefore the number of principal component variables is greatly reduced; the leakage flow is estimated in the mode of KPCA-RBF neural network curve fitting, solution of a high-order equation set is avoided, and accuracy and precision of leakage flow estimation are improved; in addition, information affecting the leakage flow serves as system input, so that the estimating method effectively adapts to the complex and changeful environment, and the practicability of the leakage flow estimating method is improved. An FPGA and DSP architecture is adopted, and compared with a single FPGA system or a single DSP system, an FPGA and DSP system has higher calculation processing capacity; the FPGA and DSP framework simultaneously has the advantages of good real-time performance of an FPGA and low development difficulty of a DSP, shortens a development cycle, reduces technical risks, and is more suitable for real-time data processing, system functions are partitioned clearly, and the overall performance indexes of the system are greatly increased.

The invention relates to the technical field of aircraft design and especially relates to an aircraft effectiveness sensitivity analysis method. The aircraft effectiveness sensitivity analysis method comprises following steps: 1. establishing a preset operational effectiveness requirement set of different air combat superiorities; 2. establishing a combat tactics set corresponding to the different requirements in the preset operational effectiveness requirement set; 3. performing large sample optimization on aircraft tactical index values to obtain an optimized interval of the aircraft tactical index values; step 3 comprises following steps: 3.1 setting an initial aircraft tactical index value as simulation input; 3.2 using the combat tactics set as a simulation scheme to carry out simulation experiment; 3.3 using the preset operational effectiveness requirement set as the evaluation criteria of simulation results. By means of the tactical index effectiveness sensitivity analysis method of the invention, aircraft optimized design is guided and combat effectiveness is increased, the related cost of development stages is reduced and technical risk is reduced.

The invention discloses a power supply device, an optical module power supply system and a power supply control method, and belongs to the field of power supply control of optical modules in communication devices. The power supply device includes a power supply isolation control module and a processing module, The processing module is used for obtaining a voltage value of input voltage of an optical module group, and when it is determined that the voltage value satisfies a first range, a control instruction is sent to the power supply isolation control module, so that a power supply conversion module and the optical module group are disconnected, and the power supply conversion module stops supplying power to the optical module group. Through the functions of the processing module and power supply isolation control module, when an abnormality of the input voltage input to the optical module group occurs, the power supply conversion module and the optical module group can be disconnected, thereby preventing a fault that occurs in the optical module group from influencing other optical modules that work normally, reducing the technical risk of optical module group power supply, and improving the reliability of an optical module power supply system.

The invention relates to a self-driven fan large-bypass-ratio turbofan engine with an inner loop air turbine and a design method. The self-driven fan large-bypass-ratio turbofan engine is characterized in that an outer bypass part is provided with a self-driven fan rotor with a larger bypass ratio and with an inner loop air turbine, the rotor comprises an auxiliary bypass fan rotor (1), an air-driving turbine rotor (3) and a rotating medium casing (5); an auxiliary bypass fan stator (2) is arranged on the downstream of the auxiliary bypass fan rotor (1); an air-driving turbine stator (4) is arranged on the downstream of the air-driving turbine rotor (3). The self-driven fan large-bypass-ratio turbofan engine has advantages: (1) while the bypass ratio is increased, the problem of the large-bypass-ratio turbofan that the rotation speed of the fan is not matched with that of the low voltage rotor can be avoided; (2) compared with the scheme of a gear turbofan engine (GTF) and a three-rotor turbofan engine for solving the mismatch problem of the rotation speed, the structure is simplified; (3) the self-driven fan large-bypass-ratio turbofan engine can be improved on the basis of the existing two-rotor turbofan engine, so that the technical risk and research cost can be reduced, and the research period can be shortened.

The invention discloses a coating system which comprises primer, filling paint, colored paint and finish paint. The primer is prepared from polyether resin, pigment filler, an adhesion promoter, a rheological agent, dilutent and a dryer. The invention further discloses application of the coating system to plastic and metal combined parts. The application comprises the steps of adding a curing agent into the primer, the filling paint and the colored paint to obtain a primer sample, a filling paint sample and a colored paint sample; coating the plastic and metal combined parts with the primer sample and baking; coating the product with the filling paint sample, baking and then polishing through abrasive paper; coating the product with the colored paint sample and baking; coating the product with the finish paint, and curing by ultraviolet light. According to the coating system, the primer only needs one kind of resin to provide good adhesion performance for plastic and metal, so technical risk of using varieties of resin is reduced and cost is reduced; application and operation are simple; the product has good wear resistance and high adhesion and is prevented from cracking in a CNC and anodizing manufacturing process after being coated.

The invention relates to a layered optimization method for a multistage multi-spraying-pipe ejector. The method comprises the following steps: (1) optimizing overall parameters of an ejector: calculating a total pressure ratio; confirming ejection stage quantity and single-stage pressure ratio; assuming a series of ejection area ratio alpha and ejection mach number M'; calculating ejection performance and optimally confirming the ejection parameters; (2) optimizing the ejection nozzle layout: designing the nozzle layout in different nozzle amount and distribution forms, performing numerical simulation and optimally confirming nozzle layout parameters; (3) optimizing the parameters of enhanced mixing ejection spraying pipes: designing the ejection spraying pipes with different tooth amount and invading angles, performing numerical simulation and optimally confirming the nozzle shape parameter. The method disclosed by the invention overcomes the defect of the present ejector design method that the shape and structure layout of the ejection spraying pipes are not considered, can obviously reduce the deviation of the theoretical design and the engineering commissioning, can reduce the technical risk and can save the development and running cost of the ejector system.

The invention discloses a viscous wave-making flow field analysis-based trimaran demihull layout optimization design method. Through analysis of a main hull and waveform analysis of demihulls, peak energy and valley energy are counteracted mutually to form favorable interference, so that the pressure distribution of a whole ship is more uniform and fluent, the total resistance of a trimaran is reduced, the navigational speed is increased, the fuel consumption is reduced, the running cost is reduced, and the project feasibility is achieved. Compared with the prior art, the viscous wave-making flow field analysis-based trimaran demihull layout optimization design method has the advantages that the research and development cycle is short, the technical risk is controllable, the test cost can be reduced, the manpower and material resource input is reduced, and important assistance is provided for improving the overall design quality of the ship.

The invention discloses an aero-engine W-shaped sealing ring manufacturing method. The aero-engine W-shaped sealing ring manufacturing method includes the steps that step 1, the number of required rolling passes for forming is calculated according to a structural form of a W-shaped sealing ring required to be formed; step 2, rollers for each rolling pass are designed, and all roller pairs are machined and produced; and step 3, technological machining of the W-shaped sealing ring is carried out. According to the aero-engine W-shaped sealing ring manufacturing method, by roll bending and circlebending forming, the continuous technological manufacturing method within a tolerance range can be guaranteed, the production cost can be reduced, the degree of technology automation is high, the technical risk is low, and the improvement of forming quality is facilitated; and by using rubbers or rubber bags filled with liquids as moulds, and sheet metal can be wrapped and pasted on the corresponding rigid moulds for forming under the action of pressure, so that the rubbers are in contact with the surfaces of materials when parts are formed, the surface quality of workpieces can be protected without mechanical damages, energy can be absorbed, impact time is prolonged, and metal sheets produce more plastic deformation, so that parts which meet production requirements are formed, the energyis saved, and the efficiency is high.

The invention provides a next generation broadcasting network (NGB) access network architecture system and a butt joint method of an Ethernet over coax (EOC) network management system and a business operation support system (BOSS). The NGB access network architecture system comprises a business management system, an authentication management system connected with the business management system, a call-center system connected with the authentication management system, three China national ratio (CNR) servers which are connected with the authentication management system and respective serve customer terminal equipments with the types of cable modems, personal computers and set top boxes, and a simple network management protocol (SNMP) management system which is connected with the authentication management system and used for carrying out SNMP configuration on the various customer terminal equipments; and the architecture system also comprises a butt joint management system used for taking part in the butt joint with the authentication management system so as to complete authentication, optical line terminal management equipment connected with all the CNR servers and the SNMP management system, EOC local side management equipment connected with the optical line terminal management equipment, and customer terminal access equipment connected with the EOC local side management equipment. The architecture system and the butt joint method enable all EOC access technologies to be suitable for the BOSS, thus reducing the butt joint cost and the technical risk, and reducing the access difficulty.

The invention relates to a modified heavy-duty gas turbine. The modified heavy-duty gas turbine comprises an air inlet casing assembly, wherein a gas compressor stator assembly, a rotor assembly, a combustion chamber, a turbine stator assembly, an exhausting pressure expander and a bearing assembly are sequentially arranged at the right end of the air inlet casing assembly; all stator assemblies are of horizontal opposite opening structures; the lower half part of a front supporting point bearing assembly is integrally casted with the lower half part of an air inlet casing; the lower half parts of an intermediate supporting point bearing and a rear supporting point bearing are correspondingly mounted at the lower half part of a combustion chamber casing and the lower half part of the exhausting pressure expander. The modified heavy-duty gas turbine has the advantages that the technical risk can be effectively reduced; few new tools and devices are needed, so that the manufacturing period and the construction cost can be decreased; and meanwhile, the utilization rate of spare parts of an original machine is high, so that the reliability can be ensured.

The invention discloses a universal rack of an automotive restraint system. The universal rack comprises a sliding table plate (1), an instrument plate cross beam (5), a steering column mounting frame (6) and a knee supporting frame (7), wherein the instrument plate cross beam (5) is supported through an instrument plate cross beam bracket (3) arranged on the sliding table plate (1), a plurality of mounting holes II are formed in the instrument plate cross beam (5), and the steering column mounting frame (6) and the knee supporting frame (7) are selectively mounted in the corresponding mounting holes II in the instrument plate cross beam (5); a safety belt fixing frame (8), a chair mounting frame (9) and an accelerator pedal bracket (4) which are used for simulating a real automobile are further arranged on the sliding table plate (1), and a plurality of mounting holes I (2) for mounting parts of various vehicle models are formed in the sliding table plate (1). The universal rack can be applied to experiments of the different vehicle models and is easy to built and adjust; by utilizing the universal rack, the experiments are accurate, technical risks are reduced, the development cost is saved, and the later changing cycle is shortened.

The invention relates to a permanent magnet motor sealing technology, in particular to a rotor sealing structure of a locomotive permanent magnet synchronous traction motor. The technical problems that the cooling effect of a machine shell of an existing permanent magnet motor is poor, and a matched cooling system is complex in structure are solved. The rotor sealing structure of the locomotive permanent magnet synchronous traction motor comprises a machine base, a rotor iron core, a stator iron core, a non-transmission end cover and a transmission end cover; the inner sides of the non-transmission end cover and the inner side of the transmission end cover extend towards the inside of the motor and are in compression butt joint with the positions, close to the inner circle, of end plates at the two sides of the stator iron core; sealing strips are fixed between the extending structures of the non-transmission end cover and the transmission end cover and the stator end plates, annular sealing plates are further arranged between the sealing strips and the stator end plates, and then the rotor iron core is sealed by the sealing plates and the sealing strips together. According to therotor sealing structure, cooling air cannot enter a rotor part, so that foreign matter in the cooling air is prevented from being adsorbed on the surface of a rotor, and the technical risk caused whena locomotive motor uses a permanent magnet motor is reduced.

The invention provides a spiral heat exchanger and a manufacturing method thereof and an air conditioner. The spiral heat exchanger comprises a heat exchange pipe and a plurality of fins, the heat exchange pipe is spirally wound to be cylindrical, the centers of the fins are provided with mounting holes matched with the heat exchange pipe, and the outer portion of the heat exchange pipe is sleeved with the fins at intervals through the mounting holes. Air can be sucked around the spiral heat exchanger; compared with a mode that a traditional plane-shaped heat exchanger can only suck air with one side, the windward area of the spiral heat exchanger is increased by 2-3 times, and integral heat exchange efficiency of the spiral heat exchanger is greatly improved; in addition, according to the spiral heat exchanger, a semicircular connecting pipe does not need to be welded to the heat exchange pipe, the bending process and cost of the semicircular pipe are reduced, the technical risk of refrigerant leakage caused by poor pipe opening welding is avoided, the manufacturing of the spiral heat exchanger becomes simple and convenient, product quality is effectively guaranteed, and product production efficiency is improved.

The invention discloses an open-pit mine slope anti-seepage drainage system comprising an impermeable layer, a slope top anchoring ditch and a slope toe drainage ditch. One end of the impermeable layer is laid down the slope from the slope top anchoring ditch, and the other end of the impermeable layer extends to the slope toe drainage ditch, and is laid on the side wall and bottom of the slope toe drainage ditch completely; the impermeable layer is externally pressed and fixed by wire ropes, and the wire ropes comprise a longitudinal wire rope and a horizontal wire rope; the longitudinal wirerope is vertically connected to the horizontal wire rope, and the top end of the longitudinal wire rope is fixed in the slope top anchoring ditch; and the bottom end of the longitudinal wire rope extends to the slope toe, and the two ends of the horizontal wire rope are connected to the longitudinal wire rope separately. The anti-seepage drainage system has the advantages of the rational structure, low technical risk and high practicability, and the engineering cost can be saved; and the anti-seepage drainage system has higher promotion and application value in the slope protection engineering.

A mobile application development cloud platform comprises a server established in a cloud network and a plurality of developer client-sides connected to the server. Each developer client-side comprises a development platform for developing mobile applications. The mobile application development cloud platform is characterized in that the server comprises a plurality of function packaging modules, wherein each function packaging module comprises at least one API function which can be invoked by the development platforms; each developer client-side further comprises a downloading module used for downloading the function packaging modules from the server. According to the mobile application development cloud platform, various frequently-used functions are modularized and visualized, so that complex technologies involved in the mobile application development cloud platform are stored in a black box, and the requirements for the technologies grasped by developers are reduced; in addition, the mobile application development cloud platform is also beneficial to improving the efficiency of project development, shortening the period of project development and lowering the technical risk of project development. Compared with a traditional development mode, the mobile application development cloud platform has extremely broad market application prospect.