48results about How to "Solve the penetration problem" patented technology

The invention discloses a three-dimensional geological tunnel modeling method based on a spatial data structure system. The method mainly comprises the following steps of: measuring the three-dimensional coordinate value of points on a top central line of the mine tunnel and the section shape parameter of the mine tunnel; reading the acquired three-dimensional coordinate values (namely vertex three-dimensional coordinate values) of points on the top central line of the tunnel from a database, to obtain the relation between the nodes and segmental arcs of the crossed tunnels according to the vertex three-dimensional coordinate values of multiple tunnels; calculating the feature point coordinate value of a three-dimensional surface model of a tunnel body according to the tunnel section shape parameter and the relation between the nodes and the segmental arcs and by using the top-bottom central line of the tunnel as a benchmark; and constructing the surface triangulation networks of the tunnel body according to the feature point coordinate value of the three-dimensional surface model of the tunnel body so as to establish the three-dimensional surface model of the whole tunnel body. By providing the 'section-node-segmental arc' spatial data structure, the effects that the curve of the tunnel is smooth and the crossed tunnels are through are achieved.

The invention provides a fluid-solid coupling method based on smoothed-particle hydrodynamics (SPH) and nonlinear finite elements. The method comprises the following six steps: at a collision detection stage, detecting collision information of fluid particles with a finite element network; at an agent particle generation stage, generating collision agent particles presenting a finite element model according to the collision information for processing the collision between a fluid and a solid; at a coupling force calculation stage, calculating force generated by collision between agent particles and fluid particles according to the position and speed relations of the agent particles and the fluid particles; at a coupling force allocation stage, controlling the position relation of the agent particles and the finite element model and allocating the coupling force to a finite element stress model; at a position and speed updating stage, driving the position and speed update of the finite element model and a fluid particle model according to the calculated coupling force; at a non-penetration modification stage, modifying penetration fluid particles according to an updated position.

The invention discloses a multi-person voice video call method based on WebRTC, and the method comprises the following steps: enabling users to send multiple call requests at the same time through specifying connection room number Room IDs and room sizes; finally achieving the multi-person voice video call through the building of P2P connection between each two users. A communication mechanism based on WebRTC enables a system to be flexible in operation, to be quick in response and to be low in delay. A series of signal exchange and SDP negotiation is needed in the P2P connection building process. Faced with a complex network environment, the mature NAT penetrating technology can enable the users in different local area networks to communicate with each other directly. Based on the development of an Android platform, the method can be applied to various types of mobile equipment more widely, improves the applicability and flexibility, and is suitable for a small-scale multi-person voice video call.

The invention provides a six-traction device space debris net capture system which adopts level-1 launch and mass blocks synchronization launch and concentric circles rope net folding and receiving. The system comprises a launch subsystem which is composed of a launcher, a net hold, a cushioning device and a tether tension control device; a fly net subsystem which is composed of a rope net and mass blocks; the launcher is used for pushing the mass blocks at a predetermined distance from a target at a predetermined angle and to drive the rope net be pulled from the center of the net hold while unfolding to a fully unfolded state to capture the target after reaching the target location; the mass blocks are used for dragging the rope net so that the rope net is pulled out and unfolded and the net opening is tightened up to complete capture of the target; the number of the mass blocks is at least three and six mass blocks are adopted through optimized analysis; the tether tension control device is connected with the fly net subsystem and with the target through the rope net to pull the captured target off the track; the rope net is encapsulated in the net hold in a concentric circles package and is used to form sufficient coverage to completely surround the target.

The invention discloses a physical and non-physical mixture-based complex scene fluid-solid coupling efficient simulation method. The method comprises the steps of 1) performing incompressible fluid simulation, combining an Euler method and a Lagrange method, and proposing an implicit particle method-based zero-divergence smooth particle fluid dynamics method; 2) performing dynamics problem solving in fluid-solid coupling, subdividing a motion problem of a simulation object into three sub-problems according to object attributes, and solving the three sub-problems by using different methods respectively to realize a multi-dimensional classification combination computing framework; and 3) combining a strain energy density concept in fracture mechanics with Voronoi spatial segmentation to realize a physical perception-based crushing method. The simulation efficiency problem difficult to solve in complex fluid-solid coupling scene simulation is solved. Compared with a conventional fluid-solid coupling method, the method can simulate a fluid scene with richer details under the same system resources, and can meet the demand of simulating solid crushing under fluid impact.

A semitransmission-reflection LCD using optical LC film for optical compensation features that a mixed torsional nematic mode is used as its reflection mode and the optical LC film is used for the compensation of transmissive mode. On the basis of existing technology for preparing the reflection-type film transistor, the orientation angle of orientation film is changed to make the included angle between upper and lower substrates be 60-90 deg and the spacer is used to make the gap between them be less than 4 mm to form its LC box in mixed torsional nematic mode. Then, the compensating LC film is stuck on the back of basic glass plate containing the film transistor array and reflecting plate.

The invention discloses a steel casing installation device and installation method at complex terrains. The steel casing installation device at the complex terrains comprises a guide frame and a vibrating sinking device. The guide frame comprises an inner frame body and an outer frame body which are nested from the inner side to the outer side. The cross sections of the inner frame body and the outer frame body are both of square shapes. Four corners of the top face and the bottom face of the inner frame body are fixed to the center points of the four edges of the top face and the bottom faceof the outer frame body correspondingly to form a triangular area in an enclosed manner. Each triangular area is internally provided with a positioning rod, one ends of the positioning rods are fixedto the corners of the outer frame body, the other ends of the positioning rods are provided with mechanical pressing mechanisms, and rod bodies of the positioning rods are perpendicular to and fixed to the edges of the inner frame body. The vibrating sinking device comprises a crane and a vibrating hammer arranged at the hanging end of the crane. According to the steel casing installation device and installation method at the complex terrains, a casing and the guide frame are arranged, the problem of penetrating through the complex terrains is effectively solved, the control precision of installation of the casing is further enhanced, adverse influences of the geological factor on installation of the casing are overcome, and the steel casing installation device is high in applicability andinstallation precision.

The invention provides an information project whole-process management system. The system comprises: an assessment evaluation management module which is used for carrying out score weight setting on each assessment unit, and automatically carrying out scoring and ranking; a project reminding and task distributing module used for automatically reminding a project principal of which projects are close to or lag the milestone planning time in a form of sending mails, short messages and mobile APPs in real time; a document electronic management module; and a project comprehensive statistical analysis module used for performing year-based, business-based, type-based and manufacturer-based detailed and classified analysis on company information projects by counting project investment scales, project progress conditions and other information of manufacturers, business departments and the like. According to the information project whole-process intelligent management system provided by the invention, by establishing a system-personnel-document management system, personnel, time, flow, documents and other factors involved in the project construction process are integrated, the management and control cost is effectively reduced, and the working efficiency is improved.

The invention discloses a display control method. The method is suitable for being executed in computation equipment and comprises the following steps of: obtaining a clothing three-dimensional modelof to-be-tried clothing and a corresponding hollow template, wherein the hollow template represents a connection among vertex coordinates in the clothing three-dimensional model and a body three-dimensional model of a user; transparently displaying the body three-dimensional model of the user according to the hollow template so as to obtain a hollow user body; and overlapping the to-be-tried clothing on the hollow user body so as to display the effect of trying the clothing by the user. The invention furthermore discloses the computation equipment for executing the method.

The invention discloses a fuel combined injection structure based on a wedge-shaped body, and specifically relates to the technical field of scramjet engines. The fuel combined injection structure based on the wedge-shaped body comprises wedge-shaped bodies, a plurality of the wedge-shaped bodies are equally distributed in a width direction of a scramjet combustion chamber at intervals, the cross-sectional shapes of the wedge-shaped bodies are triangle, the sides of the wedge-shaped bodies with small cross-sectional areas face the upstream of the combustion chamber, elliptical injection holesare formed in leeward sides of the wedge-shaped bodies, injection passages communicating with the elliptical injection holes are arranged in the wedge-shaped bodies, and circular nozzle holes are formed in the wall of the combustion chamber at the leeward sides of the wedge-shaped bodies. The technical scheme provided by the invention solves the problem of fuel diffusion and mixing of the larger-scale scramjet engine, and alleviates the large total pressure loss and difficult thermal protection caused by the existing intrusive scramjet engine injection structure to a certain extent, and the fuel combined injection structure can be used for fuel injection of the scramjet engine.

The invention discloses an electric power marketing service customer internet of things application center design method. Data and management capability required by an application center are acquired from an edge-end layer; a data access layer in a provincial side intranet is established, and the capability of a data edge layer is integrated and packaged into a service; services are packaged into business logic on a provincial intranet Internet of Things application platform, and an in-province Internet of Things application support platform is constructed; and internal and external network isolation is broken through at the headquarters platform, the external network Internet of Things application platform and the internal network application center carry out secure communication interconnection, and the application platform obtains service capabilities of the marketing business middle station, the data middle station and the external network Internet of Things center. A layer-by-layer hierarchical architecture mode fits a management structure, and unification of management and informatization is realized; and by implementing a secure communication mode, the problem of penetration of the intranet and the extranet is solved, so that data and functional services can be safely delivered, and the confidentiality of an intranet system is ensured. Through flexible design of each module of the Internet of Things application center, system requirements are met, and maintainability and expandability are improved.

The invention relates to the technical field of waste oil recycling and discloses a waste oil recycling method of capacitor aluminum shell punching oil. The waste oil recycling method comprises the following steps: 1) carrying out centrifugal treatment: after pre-heating capacitor aluminum shell punching oil to be filtered, transferring the capacitor aluminum shell punching oil into a high-speed centrifugal machine and carrying out the centrifugal treatment to enable large-particle solid suspended matters to stay in the centrifugal machine, so as to form a filter cake; 2) carrying out heatingtreatment: conveying centrifugal supernatant subjected to the centrifugal treatment into a raw material tank with a heating function and heating; 3) conveying the heated centrifugal supernatant into acirculating filtering returning path comprising a cross-flow membrane circulating group and a temperature control jacket pipe and carrying out circulating filtering; separating filtered oil obtainedfiltering and collecting; conveying concentrated oil intercepted by a cross-flow membrane in the cross-flow membrane circulating group back into the raw material tank and the high-speed centrifugal machine in sequence and centrifuging again to form closed-loop cycle. The waste oil is treated by the method for 24h and the impurity removal rate can reach 98 percent or more.

Technique of preparing gate silicon oxide layer is key technique of fabricating IC. A small quantity of nitrogen element doped into traditional gate silicon oxide improves its characteristics. Rapid tempering oven (RTO) is adopted in the invention to control diffusibility of element accurately. Thickness of silicon oxide layer and distribution of nitrogen element are controlled through methods of multistep oxidation and annealing (diffusing). The preparing method solves issues of boron penetration, raises reliability, reduces leakage current, and does not effect on carrier mobility in channel obviously.

The invention discloses an infrared detection sensor switch control system and an infrared detection sensor switch control method for a lamp. The system comprises an infrared emitter, an infrared proximity sensor, an interrupt module and a central processing unit (CPU), wherein the infrared emitter is used for emitting infrared rays with a certain wavelength range; the infrared proximity sensor is used for receiving the infrared rays which are reflected back; the interrupt module is used for sending an interrupt signal to the CPU when the infrared proximity sensor receives the reflected infrared rays with longer wavelengths; the CPU is used for adjusting the current of the infrared emitter so as to enable the infrared emitter to emit the infrared rays with the certain wavelength range outwards, indicating the infrared proximity sensor to filter the infrared rays, which have shorter wavelengths and are reflected back by a lamp shade, according to a preset infrared ray return reception reference wavelength, and executing the command of turning on or off the lamp according to the interrupt signal. The system and the method realize the distance and penetration capacity which are inaccessible to the traditional infrared rays; the system can be completely installed in a lamp body, and is compact in structure, small in space occupation and high in practicality and reliability.

The invention discloses a gas ammonia recovery system and a method for recovering discharged gas ammonia. The method comprises a cold ammonia conveying pump, a gas ammonia cooler, a liquid ammonia heater and a gas ammonia washing apparatus. The method for recovering discharged gas ammonia is as follows: the gas ammonia discharged from a liquid ammonia filling stack platform is introduced to the gas ammonia cooler, most of the gas ammonia is cooled and recovered, and a few uncondensed gas ammonia is fed into the gas ammonia washing apparatus to be recovered in the form of ammonia water; and thegas ammonia cooler uses cold ammonia as a cooling medium, the cold ammonia is fed into the gas ammonia cooler from an ammonia depot to be subjected to heat exchange with the gas ammonia, then heatedin the ammonia heater, and then fed into the liquid ammonia filling stack platform. The gas ammonia recovery system is simple in apparatus, low in investment cost, low in energy consumption, economic,and environment friendly. The apparatus realizes the use of liquid ammonia cooling capacity to cool and liquefy the gas ammonia and efficiently recover the gas ammonia. Zero emission of the gas ammonia is realized, the energy consumption is low, the pressure stabilization of the ammonia depot is guaranteed, and the safety guarantee for the liquid ammonia filling stack platform is provided.

The invention relates to the technical field of street lamps, in particular to a solar scenic spot street lamp. The solar scenic spot street lamp is characterized by comprising a system management platform, a centralized controller, a solar cell panel assembly, an LED street lamp body, a network box and a wireless router, wherein the centralized controller is connected with the system management platform, the solar cell panel assembly is connected with the centralized controller, the LED street lamp body is connected with the solar cell panel assembly, the network box is connected with the system management platform, the centralized controller and the solar cell panel assembly, the wireless router is connected with the network box, the centralized controller and the solar cell panel assembly, and the wireless router is arranged on the LED street lamp body. The solar scenic spot street lamp reduces the energy consumption, achieves integration of lighting and a wireless network and full coverage of the wireless network in the scenic spot, is good in use effect and is automatically monitored and controlled, and the color temperature is adjusted along with change of the weather.

An optical filter relates to the technical field of optics. The light filter comprises a substrate, a first antireflection film arranged on one side of the substrate, and a medium black film, a transparent conductive layer and a second antireflection film which are sequentially laminated on the other side of the substrate, wherein a positive electrode and a negative electrode which are positioned on the transparent conductive layer are plated between the transparent conductive layer and the second antireflection film; wherein the first antireflection film comprises a first film stack, a second film stack, a third film stack and a fourth film stack which are sequentially stacked on the substrate; the dielectric black film comprises a first film layer, a second film layer and a fifth film stack which are sequentially stacked on the substrate; the first film stack, the second film stack, the third film stack, the fourth film stack and the fifth film stack are respectively formed by stacking at least three dielectric film layers, and the refractive indexes of two adjacent dielectric film layers are different. When the optical filter is used as a laser radome, the optical filter can adapt to a cold environment, optical signal interference can be reduced, and optical performance can be improved.

The invention discloses an arch-shaped self-oxygen-supply waste heat utilization type direct methanol fuel cell comprising an arch-shaped shell, a pervaporation membrane, a central reaction part, an oxygen generation cavity and a thermodynamic cycle system. The arched shell is divided into a methanol fuel cavity and a steam cavity by the pervaporation membrane; a gas buffer structure is arranged in the steam cavity; the gas buffer structure comprises a first hydrophobic fiberboard and a first hydrophilic porous board arranged at an interval with the first hydrophobic fiberboard; the central reaction part is provided with an anode flow field plate, a membrane electrode and a cathode flow field plate, the membrane electrode is located between the anode flow field plate and the cathode flow field plate, and a second hydrophilic porous board is arranged between the anode flow field plate and the anode side of the membrane electrode; a second hydrophobic fiberboard is arranged between the cathode side of the membrane electrode and the cathode flow field plate; and the oxygen generation cavity is provided with a double-layer third hydrophobic fiberboard. The energy density of the cell iseffectively improved, and high-concentration methanol and even pure methanol supply of the cell is realized and thus the working time of the cell is prolonged.