280results about How to "Reduce potential risk" patented technology

A cartridge for an electrical immobilization weapon for optimized effectiveness and accuracy, comprising: a housing means for accommodating first and second projectiles adapted for being spaced within a targeted portion, having a length of at least from 5 inches to 25 inches, of a human body and for transmitting the electrical energy to the target; connecting means having at least one such length for interconnecting the first and second projectiles and available outside the housing means for retaining the projectiles within the said length in between thereof; means including the housing means for separating the first and second projectiles for immediately achieving a said length in between after leaving the housing means; means secured to the housing means for propelling the projectiles from the housing means for reaching the targeted portion; and means for coupling the projectiles to the electrical energy of the weapon's power supply.

A temporary ostomy appliance is disclosed, including a catheter for extending through the abdominal wall into the intestine. The catheter may be a transcecal catheter for extending through the cecal valve into the ileum. A portion of a catheter that extends through the cecal valve is made collapsible when the catheter is empty. The collapsed portion expands to permit passage of effluent. A balloon carried on the catheter is preformed with a shape and size in order to permit inflation without elastic stretching of the balloon wall material. A filament is provided for permitting a portion of the catheter to be fastened to internal body tissue by surgical sutures or staples. In order to release the fastening without further surgery, the filament is withdrawn by pulling on a proximal portion outside the body.

The invention discloses a truss sheet unit of a steel truss girder, a steel truss girder structure and a mounting method thereof, relating to the design and the construction techniques of heavy-duty and large-span bridges. The steel truss girder structure consists of a plurality of the truss sheet units which are welded into a whole, wherein the truss sheet units comprise upper chord rods, low chord rods, first web rods and second web rods; the upper chord rods, the lower chord rods, the first web rods and the second web rods are welded into a rectangular frame body; two across corners of the rectangular frame body are connected by a diagonal rod; two ends of each upper chord rod further extend to form two upper connecting rods; two ends of each lower chord rod further extend to form two lower connecting rods; simultaneously, first oblique connecting rods which extend downwards are arranged among the first web rods and the upper connecting rods; and second oblique connecting rods which extend upwards are arranged among the second web rods and the lower connecting rods. When the steel truss girder is assembled, the whole truss sheet units are lifted each time; furthermore, the truss sheet units occupy two internodal lengths; the lifting times are less; the filed assembly is simple; the quantity of high-strength bolts is reduced; and the influence of the screwing of the high-strength bolts on a construction period is decreased.

The invention discloses a bus dynamic departure scheduling optimization method based on a genetic algorithm. The method specifically comprises the steps that information of vehicles and passengers running on a single line is collected before the starting moment of a planning period; a passenger flow arrival rate function is obtained according to the real-time data and prediction, and parameters needed by model calculation are determined at the starting moment of the planning period; a scene-based dynamic bus departure scheduling robust optimization model is established by taking minimization of an expected value of total waiting time of passengers as an objective function under the condition that scenes on a single line are different; a genetic algorithm is designed for solving, and according to the probability of subjective occurrence of each scene in the preference adjustment model and the magnitude of a regret value in the model constraint, different solutions for selecting an optimal departure scheme are obtained. According to the method, the problem of dynamic bus departure scheduling under the condition that the passenger arrival rate is uncertain is solved, the waiting time of passengers is shortened, the potential risk of bus operation is reduced, and the safety and the stability of a bus system are improved.

A prediction and stimulation system or method is provided for neurological disorders characterized by a local dysfunction in neuronal activity regulation. An array of electrodes detects neuronal electrical activity of selected brain region. A detection module detects in each electrode changes in electric field and neuronal activity. A prediction module predicts for each electrode abnormal regimes determined by neurological disorder. A neuromodulation module interfaced with the electrodes selects one or more electrodes in the array where a predefined threshold has been exceeded and stimulates the brain region through each of these selected electrodes using an intermittent therapeutic stimulation pattern with a frequency between 150 and 200 Hz. The provided therapy allows for seizure prediction and detection with high accuracy, potential low risk and increased battery life. The flexibility of the method and system allows it to be used in different neurological disorders by tuning the parameters using a calibration procedure.

Provided is a method for manufacturing artificial paving that helps improving global warming. A water permeable paving layer is provided under which a drain layer, which includes gravels or sand, is selectively formed, and an interfacing layer is formed under the drain layer. An ecological gradation layer is set and rammed. The underside ecological gradation layer provides an effect of supporting and, due to the ecological gradation layer containing therein hollow bodies, which can be embodied as disaster-prevention water-storage hollow bodies or earth-improvement hollow bodies or microorganism-culture hollow bodies or water-keeping hollow bodies as desired, allows rainwater falling on ground surface to quickly penetrate down into the underground location, makes the ecological gradation layer effectively preserve water in high water content, and prompt breeding of microorganisms, whereby when the atmosphere is of a high temperature, underground humidity can be released through drainpipes that constitute the water permeable paving.

A network access method and system and a network connection device are provided. A network connection device connected between a first network and a second network obtains first network attribute information about a first network device according to an access request for accessing the second network from the first network device on the first network. The network connection device performs authentication on whether the first network device has a right to access the second network based on the first network attribute information. If the authentication is passed, the network connection device connects the first network device into the second network. If the authentication is not passed, the network connection device prohibits the first network device from accessing the second network.

The invention relates to an intraocular lens preassembled injector capable of being preassembled with viscoelastic agent and a viscoelastic agent loading method. The invention discloses an intraocular lens preassembled injector capable of realizing function of preassembling the viscoelastic agent, and also discloses a method for loading the viscoelastic agent in the intraocular lens preassembled injector. Compared with the conventional viscoelastic agent injecting method for lubricating and injecting an intraocular lens in an intraocular lens implantation operation clinically, the intraocularlens preassembled injector capable of realizing the function of preassembling the viscoelastic agent and the method for loading the viscoelastic agent in the intraocular lens preassembled injector are safer, simple, sterile and high in reliability and save resources.

The invention provides an intelligent construction method for a tunnel through a drilling and blasting method, and belongs to the field of tunnel engineering. The intelligent construction method for atunnel through a drilling and blasting method integrates a drilling and blasting method tunnel face front surrounding rock intelligent prediction method, a tunnel face surrounding rock intelligent grading method, an intelligent design method, an intelligent construction method and an intelligent construction quality control method. Intelligent prediction of surrounding rock in front of the tunnelface, intelligent grading of the surrounding rock on the tunnel face, intelligent design, intelligent construction and intelligent management and control of construction quality and efficient collaborative management are achieved; investment of constructors can be effectively reduced; construction quality and construction efficiency are improved; and potential risks in the tunnel construction process are reduced.

A method for efficient resource allocation in autonomous driving by reinforcement learning is provided for reducing computation via a heterogeneous sensor fusion. This attention-based method includes steps of: a computing device instructing an attention network to perform a neural network operation by referring to attention sensor data, to calculate attention scores; instructing a detection network to acquire video data by referring to the attention scores and to generate decision data for the autonomous driving; instructing a drive network to operate the autonomous vehicle by referring to the decision data, to acquire circumstance data, and to generate a reward by referring to the circumstance data; and instructing the attention network to adjust parameters used for the neural network operation by referring to the reward. Thus, a virtual space where the autonomous vehicle optimizes the resource allocation can be provided by the method.

A third brake light is attached to a rear deck door panel of a truck so as not to interfere with opening / closing of the door panel. The third brake light includes a base attached to the door panel of the truck and forming an exposed surface to which a plurality of illuminators, such as light-emitting diodes, light bulbs and cold light panels, is mounted. An electrical cable electrically connects the illuminators to an electricity system of the truck. A light-transmitting cover having a size and shape corresponding to the base is attached to the exposed surface of the base for shielding and protection of the illuminators.

The embodiment of the invention provides a Chinese medical text duplicate checking method and device, an electronic device, a computer readable storage medium, and is applied to the field of data processing. The method comprises the steps of: performing word segmentation processing of an obtained first Chinese medical text and an obtained second Chinese medical text, and obtaining at least one first word element and at least one second word element; obtaining at least one first weight value based on the at least one first word element; obtaining at least one second weight value based on the atleast one second word element; obtaining a first feature vector based on a training dictionary, the at least one first word element and the at least one first weight value; obtaining a second featurevector based on the training dictionary, the at least one second word element and the at least one second weight value; and obtaining a similarity measurement value configured to represent the similarity of the first Chinese medical text and the second Chinese medical text based on the first feature vector and the second feature vector. The Chinese medical text duplicate checking method and device achieve electronic medical record duplicate checking.

The invention relates to a toning lotion containing traditional Chinese medicine active ingredients and yeast. The toning lotion is prepared by mixing the following raw materials in parts by weight: 0.01-0.03% of algae extractive, 0.02-0.03% of chondrus crispus extractive, 0.1-0.2% of saccharomycetes fermentation product, 0.8-1.5% of yeast extractive, 0.01-0.05% of radix astragali extractive, 0.008-0.015% of radix saposhnikoviae extractive, 0.003-0.008% of rhizoma gastrodiae extractive, 0.1-0.2% of dendrobium stem extractive, 0.05-0.1% of Aloe vera leaf extractive, 0.05-0.1% of radix sophoraeflavescentis extractive, 0.03-0.05% of barbary wolfberry fruit extractive, 0.02-0.04% of purple coneflower extractive, 0.01-0.05% of sodium hyaluronate, 3-8% of butanediol, 0.5-1.5% of auxiliary material and the balance of water, wherein the auxiliary material is prepared from preservative, chelating agent, emulgator and essence. The toning lotion has the advantages of comprehensive function and moderate material selection, can effectively improve skin type, and multiple effects on resisting ageing multidirectionally, resisting pollution, resisting allergy, relieving, moisturizing, nourishingskin and the like can be realized.

The invention relates to a voltage stability margin calculation method considering electricity-gas coupling system constraint, and belongs to the technical field of safety analysis and estimation considering multi-energy flow coupling characteristic in a power system. By the voltage stability margin calculation method, tight coupling of the power system and a natural gas system is fully considered, and the voltage stability margin of the power system in the coupling system is solved out; on one hand, the influence of safety and capacity constraint of the natural gas system on the power systemis fully considered; and on the other hand, the influence of dependency between a power load and natural gas load on the voltage stability margin according to actual condition of an application placeis also considered, and the situation that a calculation result caused by purely considering the constraint of the power system in a traditional calculation method is excessively optimistic is prevented. The method can be used in running risk analysis of the power system, a risk estimation index is provided for a running manager of the power system, a potential risk is favorably reduced, and the running safety of the system is improved.

The invention provides an apparatus and method for docking OpenStack and a virtual enterprise environment. The apparatus comprises: a router connected with an external network and providing network service for an internal network; a physical switch serving as the core of the internal network and obtaining network resources for the router; OpenStack docked with a virtual system via the physical switch and used for creating and managing a vxlan network in the virtual environment; and the virtual system docked with the OpenStack via the physical switch and used for providing a docking environmentand forming a docking framework. The method comprises the following steps: S1, connecting the OpenStack with the virtual system via data by using the router and the physical switch; S2, forming the docking framework corresponding to an OpenStack driving layer by the virtual system; and S3, creating the vxlan network in the virtual environment by the OpenStack driving layer. The network docking sperformed on the OpenStack and the virtual system to form the vxlan network service in the docking virtual environment of a neutron network in the OpenStack, and the mutual communication problem of idnumber limitation and cross machine room of vxlan is solved.

The invention provides a method and system for parallel square crossing network data collection. The method comprises the steps that S1 a collection method is determined, and S2 tasks are updated at regular time, wherein if a common URL list collection method is determined, data and metadata of a webpage to be downloaded are directly downloaded according to a URL list, and if a square crossing collection method is determined, a webpage to be downloaded is searched by utilizing a crossing keyword list, and data and metadata of the webpage is downloaded. Scanning inspection is carried out on all webpages from the first layer to the current layer in a downloaded webpage, and when the last modification time of a newly downloaded webpage is later than the last modification time of a downloaded webpage, data collection is carried out on the newly downloaded webpage, and webpage data records are updated. By means of the method and system for parallel square crossing network data collection, potential risks and cost in the multithreading technology are avoided, potential risks and cost in multithreading parallel collection are lowered, parallel collection of mass data can be carried out more stably and more efficiently, and data reading and inquiring efficiency is improved.

The invention discloses a method for predicting related important indexes of newly-built logistics nodes in a freight transport network, belonging to the field of complex network evolution and topological structure optimization. Firstly, the concept of logistics node attractiveness is put forward, and then the optimal freight network topology is obtained after a logistics node is newly built by the evolution and optimization of freight network topology, so as to determine the comprehensive value of the optimal attractiveness of the new logistics node. Finally, according to the comprehensive value of the optimal attractiveness of the newly-built logistics node, the index value of the newly-built logistics node is deduced by using the reverse method of the entropy weight comprehensive evaluation method, so as to realize the purpose of scientifically forecasting the freight volume, gross output value, occupied area, investment quota and other index values of the logistics node. Compared with the traditional blind investment and one step at a time construction, this method significantly improves the efficiency of decision-making, improves the accuracy and scientificity of decision-making and reduces the potential risks caused by the blind investment and one step at a time construction.

The invention provides an operation permission management and control system which comprises a PC end operation permission management and control equipment and hand-held end operation permission equipment. The PC end operation permission management and control equipment is used for receiving an operation appointment from an operator and establishing an operation ticket after the successful appointment. The hand-held end operation permission equipment is internally provided with an RFID ultrahigh frequency card reader. The operator enters the working site with the hand-held end operation permission equipment, and swipes an RFID staff card for confirmation, and thus the hand-held end operation permission equipment is allowed to download the operation ticket from the PC end operation permission management and control equipment. The hand-held end operation permission equipment carries out operation basic information and operation type checking, operator position locating, gas detection data inputting, operation permission approval and issuing, and collected processing data uploading to the PC end operation permission management and control equipment. The invention adopts a modern Internet of Things safety management system taking hardware equipment such as a hand-held terminal and an RFID card as control means, and thus potential risks caused by unsafe behaviors of people are reduced, and the working efficiency of enterprise personnel is improved.

The invention discloses a pier protection device for a bridge in a debris flow channel. Aiming at the defects that an existing product is unfavorable in long-term use and high in maintenance and replacing cost, the pier protection device is of a semi-enclosing structure enclosing a pier and is fixed in a channel through vertical columns; the front end of the pier protection device serves as a water-coming tip with the included angle being theta, and the tail ends of two water-coming tip bevels of the water-coming tip extend backwards in the channel direction to form side bars; and the pier protection device is of a fence structure with transverse fence bars. The invention further provides a design method of the pier protection device. The design method is used for scientific design of important parameters such as the interval D of the fence bars, the height H of the protection device, the width B of the protection device, and the length L of the side bars. According to a product of thepier protection device, the movement state of debris flow can be changed only in a very small area at a pier, the pier protection device overall has the functions of protection of trapping coarse sand and discharging fine sand and homeopathic dredging, and secondary hazards are prevented; the product is concise in structure, convenient to mount, low in production and maintenance cost and capableof being used for a long term; and the matched design method is scientific and reasonable.

The invention relates to an attached observation type endoscope for percutaneous nephrolithotomy, which solves the technical problems of excessive bleeding, higher failure rate of the operation and low safety of the equipment used in the percutaneous nephrolithotomy. The endoscope comprises a main body, an image transfer unit, a lighting unit, an ocular unit and a puncture body; the puncture body comprises a puncture needle and a catheter; the puncture needle comprises a hollow outer pipe; the ocular unit comprises a ocular cover, a reversed image lens, an ocular lens and ocular glass; the image transfer unit comprises a multifilament image transfer rod arranged in the hollow outer pipe of the puncture needle; the lighting unit comprises a light beam grip connected with the main body, a light beam interface arranged on the light beam and connected with an external light source, a light cone arranged in the light beam interface and a light transfer optical fiber bundle connected with an image output surface of the multifilament image transfer rod; and black epoxy resin glue is filled in the outer circumference of an imaging surface of the multifilament image transfer rod. The endoscope has the advantages of good operational visibility, less bleeding, higher operational success rate, high safety and unnecessary water flushing.

The invention discloses an integrated forging and forming method for a reactor pressure vessel barrel flange adapter tube section. The integrated forging and forming method for the reactor pressure vessel barrel flange adapter tube section comprises the steps of (1) heating a steel ingot, and pressing the steel ingot to obtain an eight-edge prism steel billet; (2) blanking a forging billet: cutting a head part and a tail part of the eight-edge prism steel billet so as to obtain an eight-edge prism forging billet; (3) upsetting and drawing the forging billet: upsetting and drawing out the forging billet; (4) carrying out upsetting and rolling: upsetting and rolling the forging billet to obtain a short cylindrical forging billet; (5) carrying out marking and dividing in the circumferential direction: cutting two marking and dividing grooves at two ends of the short cylindrical forging billet; (6) carrying out rolling and necking: forming an adapter tube billet with a convex ring in the middle section; (7) carrying out marking and dividing in the axial direction: cutting four axial dividing grooves arranged along the axial direction; (8) circularly pressing a hemline; (9) marking anddividing a hemline boss: forming four sections of bosses on a hemline adapter tube billet; (10) punching a main hole; (11) carrying out chambering and forming; (12) carrying out shaping and chambering; (13) punching an adapter tube hole; (14) carrying out heat treatment after forging; (15) roughly machining the billet; (16) carrying out quenching; (17) carrying out hardening and tempering; and (18) processing a finished product. According to the method, integrated forming and forming is realized, the structure is uniform and dense, and a metal flow line is complete.

The invention discloses an overtaking assisting method and system for a vehicle and belongs to the field of vehicle safety. The overtaking assisting method for the vehicle is used for assisting a driver to overtake safely and comprises the steps that the overtaking assisting system is activated; speed information of the vehicle, speed information and acceleration information of a vehicle in front of the vehicle, information of the distance between the front vehicle and the vehicle and information of an stationary object in front of the vehicle are collected; whether the vehicle is suitable for overtaking or not is judged according to the information; and under the situation that the vehicle is suitable for overtaking, a driver is assisted to overtake safely. The invention further provides the corresponding system. The overtaking assisting method and system are adopted to assist the driver to overtake, fatigue due to frequent overtaking operation of the driver can be effectively reduced, potential risks caused by the fatigue or inattention of the driver are reduced, and the driving experience of the driver is improved.

The invention relates to railway traffic, and discloses a heavy-haul-railway temporary speed limitation method based on moving blocking and a temporary speed limitation server. The method includes the steps that first temporary speed limitation information is received from centralized traffic control equipment; the first temporary speed limitation information is sent to a wireless blocking center; when the wireless blocking center receives efficient temporary speed limitation information in first preset time, it is determined that whether or not the first temporary speed limitation information accords with the efficient temporary speed limitation information; when the first temporary speed limitation information accords with the efficient temporary speed limitation information, the first temporary speed limitation information is stored, and a command is sent to make the wireless blocking center adopt the efficient temporary speed limitation information to conduct speed limitation on a heavy haul train. By the adoption of the heavy-haul-railway temporary speed limitation method based on moving blocking and the temporary speed limitation server, dynamic setting, canceling and checking of temporary speed limitation are achieved, the pressure of operators is alleviated, at the same time, hidden risks which can be caused by manual operation are reduced to the maximum degree, and the safety of the system is improved.

The invention belongs to the technical field of mechanical processing and specifically relates to an automatic detecting and mistake-proofing method based on a Renishaw probe. A simple cutter corrector comprises a cutter detecting block [1], a quick-changing base [2], a bolt [3] and a base [4]. The working principle and the control system of the Renishaw probe of a numerical control machine are researched deeply; spatial distance, aperture and angle measurement micro programs are developed and a simple geometrical parameter calibration block for cutters is designed. The automatic detecting and mistake-proofing method comprises the steps of processing, measurement, judging and processing. In the method, collision accidents and scrapping of products, caused by the outside interference factors such as inaccurate origins of coordinates of workpieces, inaccurate geometrical parameters of cutters and inaccurate programs during numerical milling and processing, are avoided effectively. A correcting cutter has the characteristics of being used repeatedly, is simple and convenient to clamp, low in cost and good in universality. The technique is easy to understand, strong in operability and lower in degree of dependence to numerical control operators.

The invention belongs to the technical field of material forming processes and discloses a method for monitoring a production state and an operation and maintenance state of a wind power blade. The method for monitoring the production state and the operation and maintenance state of the wind power blade is characterized in that a radio frequency electronic tag (4) which is integrally formed with the wind power blade is arranged at the tip of the wind power blade, and a handheld terminal reader-writer (6) matched with the radio frequency electronic tag writes key information of raw materials of the blade and a quality problem, raw material information and parameter information in various wind power blade forming engineering into the radio frequency electronic tag (4) to obtain the wind power blade with the complete production information; and monitoring of the operation and maintenance state of the blade is implemented through the radio frequency electronic tag arranged in the wind power blade. According to the method, the potential risk of fan operation is reduced, and a lot of time for searching the blade by various compartments is saved.

The invention provides an autonomous controllability detection method and system for mixed-source software. The method and system are used for solving the problem that in the prior art, whether the mixed-source software has autonomous controllability or not cannot be detected. The method comprises the steps of importing source codes, analyzing the source codes and judging whether a test is executed or not; And dynamically executing tracking and consistency analysis. For uncovered functions, variables and codes, or for differences between the codes and design description documents, software developers need to give reasonable explanations and codes which cannot be explained and are judged to be non-autonomous development. From two aspects of code static analysis and dynamic execution, for the inconsistent places and redundant codes, if reasonable explanation cannot be given, it is judged that the software does not have autonomous controllability. The method is easy to operate and high inpracticability, whether the software is developed autonomously or not can be rapidly and accurately detected, and therefore the software covering the autonomously-controllable coat is found out, andpotential risks caused by non-autonomously-controllable software are effectively prevented.

The invention provides a surrounding rock grading method, and belongs to the field of tunnel engineering. The surrounding rock grading method comprises the following steps: constructing a sample library, wherein the sample library comprises drilling parameters and surrounding rock grades of corresponding positions; constructing a surrounding rock grading model based on a neural network, and substituting the sample library into the surrounding rock grading model for training; and inputting drilling parameters into the trained surrounding rock grading model to obtain the surrounding rock grade of the corresponding position. According to the surrounding rock grading method, the surrounding rock grading model is constructed through the neural network technology, surrounding rock grades are automatically judged according to drilling parameters generated in the drilling process, investment of constructors can be effectively reduced, and potential risks in the surrounding rock grading evaluation process are reduced.