215results about How to "Reduce the risk of security incidents" patented technology

The invention discloses a method for accessing sharing resources in a distributed system and the distributed system. The method comprises the steps: a. when a sub node in the distributed system starts to access the sharing resources in a local process, the sub node judges that that the sharing resources are not accessed according to the global lock state of the sharing resources stored in a local global lock state array and sends a sharing resource access request to a host node in the distributed system; b. a host node obtains the global lock of the sharing resources when the host node judges that the access request of the sub node can be executed according to the order of the sharing resource access request in a local waiting list. According to the technical scheme, the distributed system can achieve synchronous and mutual exclusive control on the whole system through a lock mechanism of itself instead of through a lock service provided by a third part integrated type system, therefore, dependence on the external integrated type lock system is reduced, and the risk of the system is reduced.

The invention provides a construction site intelligent safety supervision system and a control method thereof. The system comprises a site access control device, a safety fence device, a device control terminal, a smart tower and a remote server, wherein the intelligent tower is used for realizing construction site panoramic view monitoring, construction on-site sound collection, odor collection,on-site lighting and voice broadcast and realizing sound-light alarm under abnormal circumstances, and the remote server is in communication connection with the intelligent tower, the safety supervision terminal and an intelligent reporting terminal through a mobile communication network and transmits corresponding data to a safety supervision management center through an Internet network. With the construction site intelligent safety supervision system and the control method thereof of the invention, the image information and environmental information of a construction site can be acquired inreal time; the unified control of construction workers and construction equipment can be realized; auxiliary lighting can be realized; alarm prompts can be given out when an abnormal condition occurs, and the abnormal condition is reported to the a safety monitoring management department; and actual all-round and no-dead-corner safety supervision can be realized.

The invention relates to a functionalized implantable flexible electrode and an application thereof. The functionalized implantable flexible electrode at least comprises a function layer capable of generating a current or voltage. In the invention, through adopting the function layer which can generate the current or the voltage via triggering, the flexible electrode does not need complex line connection and device packaging and the function of a nerve stimulation device can be realized so that an operation risk and the safety risk of long-term implantation are greatly reduced, and the application field of the nerve stimulation device is expanded. The invention also provides the applications of the above functionalized wide-width implantable electrode in manufacturing an implantable artificial retina, an implantable artificial cochlea, an implantable cardiac pacemaker, and an implantable deep brain stimulator.

The invention discloses a battery device, a battery device protection circuit and a method of monitoring the temperature of the battery device. The battery device comprises a shell, an electric core unit and a central management unit; wherein, the electric core unit and the central management unit are arranged in the shell; and the electrical core unit comprises a or a plurality of electrical core(s). The battery device of the embodiment of the invention further comprises at least one outer temperature sensor which is connected with the shell and at least one inner temperature sensor which is connected with the electrical core unit(s); and the outer temperature sensor and the inner temperature sensor are both connected with the central management unit (BMU). Preferentially, the battery device comprises a warning module. The invention can effectively monitor the electrical core unit and even the decline performance of each electrical core. Due to the warning function, the invention can alarm before the safety-related incident of the battery occurs, thereby effectively reducing the risk of safety incidents.

The invention provides an abnormal object recognition method and device and a storage medium. The method comprises the following steps of: obtaining a sample; processing and classifying the initial data; obtaining a training set and a verification set; wherein the training set comprises a positive sample and an unknown sample; wherein the verification set comprises a positive sample; wherein the positive sample is a known behavior data sample of an abnormal object; and then, training a prediction model by using the training set, verifying the trained prediction model by using the verificationset to obtain at least one target prediction model, and further performing identity prediction on a to-be-identified object by using the at least one target prediction model to determine whether the to-be-identified object is an abnormal object. According to the method provided by the invention, the identification accuracy of the abnormal use condition of the Internet of Things card is improved, so that the security risk of the Internet of Things card is reduced.

The embodiments of the invention provide a method and system for configurating memory device under hybrid storage environment. The method includes the steps of obtaining a plurality of attribute parameters of each memory device of memory devices; calculating the priority of each memory device based on the attribute parameters; obtaining storage priority of each data object; and matching the storage priority of data objects with the priority of memory devices, so as to store each data object to a memory device of the same priory. According to the embodiments of the invention, the method and system for configurating memory device under hybrid storage environment can realize configuration of a plurality of memory devices and a plurality of data objects under hybrid storage environment, thereby reducing safety risk by eliminating human interference, improving system performance and lowering system energy consumption.

The invention relates to the field of a biomedical material, and particularly discloses a crosslinked alginate-bacterial cellulose sponge and a preparation method thereof. The crosslinked alginate-bacterial cellulose sponge takes an alginate biomaterial and bacterial cellulose as raw materials. The crosslinked alginate-bacterial cellulose sponge is characterized in that a sponge product is prepared from the alginate biomaterial and the bacterial cellulose in manners of crosslinking and freeze-drying after being compounded, wherein the alginate biomaterial accounts for 80-95% of the sponge product in mass fraction; the bacterial cellulose accounts for 5-20% of the sponge product in mass fraction. The crosslinked alginate-bacterial cellulose sponge is abundant in used material sources, low in cost, controllable to process, and simple in production technology; the prepared crosslinked alginate-bacterial cellulose sponge has good mechanical property, liquid absorption property, water retention capacity and air permeability, and is applicable to bleeding healing of large seepage or a bleeding wound.

The invention discloses a memory sharing method and device, electronic equipment and a storage medium, relates to the technical field of computers, and is applied to a data sharing system. The devicecomprises a host and a virtual machine running in the host, wherein at least one host process runs in the host, at least one virtual machine process runs in the virtual machine, and the method comprises the following steps: receiving a shared memory establishment request from the host process based on the virtual machine process, and allocating a first virtual machine physical address to a to-be-established shared memory based on the shared memory establishment request; mapping a memory corresponding to the physical address of the first virtual machine to a process address space of a host process; allocating a physical memory page to the shared memory to be established from the memory corresponding to the physical address of the first virtual machine; and mapping the memory corresponding to the physical memory page to the process address space of the virtual machine process, and taking the memory corresponding to the physical memory page as a shared memory between the virtual machine process and the host process. According to the invention, safe memory sharing between the virtual machine and the host process is realized.

The invention belongs to the field of biomedical materials, and particularly discloses an alginic acid-chitosan composite fiber for tranma repairing and a preparation method thereof. The alginic acid-chitosan composite fiber for the tranma repairing is characterized by comprising an alginic acid component of which the mass fraction is 50-95%, and a chitosan component of which the mass fraction is 5-50%. The processing technique disclosed by the invention is not involved with an organic reagent or an organic chemical reaction, so that the preparation method is mild in reaction system and controllable in condition; the residue problems of a toxic crosslinking agent or an assistant and the like do not exist; used materials, reagents and the like have good biosecurity; the security risk of clinical applications is greatly reduced. In addition, the technology disclosed by the invention is simple and controllable, and has the good product transformation feasibility; the difficulty of risk management in the preparation process is greatly reduced.

The invention discloses a method and a system of measuring a length of a dry beach of a tailing pond. The method comprises selecting monitoring profiles of the dry beach in the tailing pond, selecting at least three monitoring points and at least five auxiliary observation points on surface of the dry beach, obtaining absolute heights of each monitoring point and auxiliary observation point at an initial time, furthermore fitting a curve equation of the dry beach surface at the monitoring profiles of the dry beach at the initial time, during measurement, obtaining an absolute height of each monitoring point at current time in real time, combining the absolute height of each monitoring point and the curve equation of the dry beach surface at the initial time, determining current measurement errors of horizontal distances of each monitoring point of the dry beach surface from the beach top, furthermore determining a curve equation of the dry beach surface at the monitoring profiles of the dry beach at current time in accordance with a predetermined measurement error threshold, and determining the length of the dry beach at the monitoring profiles of the dry beach at current time in accordance with the absolute height of the water level and the curve equation of dry beach surface in the current moment, thereby realizing measurement of the length of the dry beach of the tailing pond. The method can timely, accurately and reliably measure the length of the dry beach, and thus accurately reflect actual security situations of the tailing pond and effectively reduce risks of occurring security incidents in the tailing pond.

The invention provides a vegetable-fat nano-emulsion prepared by a D-phase emulsifying method. The vegetable-fat nano-emulsion comprises, by weight percentage, 5-20% of polyol, 1-10% of emulsifier, 5-30% of vegetable fat and the balance water. The invention further provides a preparation method of the vegetable-fat nano-emulsion. The preparation method includes: mixing glycerin, butanediol or propylene glycol with the emulsifier, and heating to obtain a mixed component; heating the vegetable fat to obtain an oil-phase component, adding the oil-phase component into the mixed component, and stirring to obtain a gel-phase component; heating a water phase, then adding into the gel-phase component, mixing and stirring, and cooling to room temperature to obtain the O / W type vegetable-fat nano-emulsion, wherein the particle size of the dispersion-phase particles of the O / W type vegetable-fat nano-emulsion is 200-700 nanometers. The vegetable-fat nano-emulsion and the preparation method thereof have the advantages that the particle size of the vegetable-fat nano-emulsion is lowered, so that the vegetable-fat nano-emulsion can be favorably absorbed by the skin; the adding amount of the emulsifier in the vegetable-fat nano-emulsion is lowered, so that the irritation of the vegetable-fat nano-emulsion to the skin is lowered; in addition, the vegetable-fat nano-emulsion is good in stability.

The invention discloses a mechanical industry production site patrol system based on the internet of things technology. An MVC mode is adopted for the system. The system comprises a presentation layer, a service logic layer and a database layer, wherein the presentation layer is used for presenting functions of the system and interacting with a user, and the presentation layer of the system includes two forms, namely, a user browser end and a handheld patrol instrument. The service logic layer is used for data exchange between the database layer and the presentation layer, dispatching requests of the user, selecting an appropriate presentation method for display, explaining input of the user, and mapping the input of the user to the executable operation of the database layer. The database layer is composed of all levels of database resources.

The invention provides a method for controlling the priming of the priming circuit of an electronic detonator. The method comprises a priming control process of the priming circuit of the electronic detonator on one hand and a priming control process of the electronic detonator on the other hand. Firstly, the priming device carries out pre-firing control process to the electronic detonator, sendsa pre-firing instruction to a detonator in an accurate condition, and places a pre-firing finish marker on the detonator after receiving pre-firing response information sent back by the detonator. Then, when the external priming cancelling information is received, the priming device enters an priming cancelling condition, sends a safe discharging instruction to the detonator, and places a pre-firing un-finish marker on the detonator; when receives external continuing priming information, the priming device enters a continuing priming condition, and carries out priming instruction sending process, and the detonator enters firing process as soon as a correct priming instruction is received. The technical scheme realizes the control over the synchronicity of the priming processes of the priming circuit of the electronic detonator, thereby improving the accuracy of priming intervals controlled by the priming circuit.

The invention provides an electric car battery deployment system based on an electric vehicle switching mode. The electric car battery deployment system is characterized in that an electric car (1), acharging and switching station network (2), and a battery pack (3) supporting the dynamic configuration capacity are included, the electric car is combined with a customized charging and switching station, power batteries are dynamically deployed according to the application requirements, thus car-electric separation is realized, and the utilization efficiency of the batteries is improved.

The invention relates to a stable anti-VEGF antibody preparation and an application thereof, specifically the preparation comprises (i) therapeutically effective amounts of an anti-VEGF antibody, (ii) a buffer system containing 1.0-5.0mg / ml of sodium acetate trihydrate, (iii) an osmotic pressure regulator, and optionally (iv) surfactant, wherein the pH of the preparation ranges from 5.0 to 6.0. The preparation disclosed by the invention can be used for effectively reducing the physical and chemical degradation reaction rates of an anti-VEGF monoclonal antibody, improving antibody stability and prolonging the shelf life of a finished product; in addition, the invention also discloses a method for stabilizing the antibody and an application of the preparation.

The invention discloses a method for determining the safe remaining service life of an elevator without maintenance, belongs to the field of determining the non-scheduled maintenance time interval andremaining service life of the elevator based on big data of elevator operation and maintenance, and relates to the establishment of a model and the innovation of algorithms. According to the technical scheme, the method comprises the following steps of: step (1). monitoring the operating indexes of the elevator; step (2). monitoring samples to classify the health operating states of the elevator;step (3). constructing the life index of the elevator; step (4). predicting the life index based on a BP neural network algorithm; and step (5). determining the safe remaining service life curve of the elevator without maintenance through Weibull distribution. According to the method, an elevator safe remaining service life model which can be used for determining the maintenance time interval andpredicting the remaining service life is established and is relatively practical; and an existing method is optimized and innovated by combining the specific industry background of elevator equipment, so that the model is relatively reliable. The model obtained according to the method is practical and more reliable.

The invention relates to an anticorrosive, anti-explosion and environment-friendly type liquid ring vacuum unit. The main structure of the unit is composed of a liquid ring vacuum pump, a heat exchanger, a gas-liquid separator, a pipeline type filter, a point contact anti-explosion vacuum meter, an anti-explosion motor, a valve and a pipeline. Unit flow passage components are made of anticorrosive materials or are subjected to anticorrosive treatment. Anticorrosive electrical elements authenticated nationally are adopted, gas or gas-water mixtures which are flammable and combustible and have certain corrosivity can be pumped, and the unit is particularly suitable for industries of biological pharmacy, medical intermediates, fine chemicals, pesticides, alkali chemical engineering, fluorine chemical engineering and the like needing acquisition of vacuum environments. The anticorrosive, anti-explosion and environment-friendly type liquid ring vacuum unit can solve the problems that traditional equipment is large in water resource consumption, large in sewage discharge capacity and high in equipment failure rate; meanwhile, the unit can be used for pumping flammable and combustible and corrosive media, the environment is better protected, water resource consumption is reduced, the equipment failure rate is reduced, the safety accident risk is lowered, and extremely-large social and economic benefits are achieved.

The invention discloses a method and a device for controlling safety access to a storage network, and switching equipment, which are used for enhancing safety and reliability of the storage network. The method for controlling safety access to the storage network includes the steps: after receiving a connection establishment request message transmitted from initiating-end equipment to target-end equipment, acquiring access authority control information between the initiating-end equipment and the target-end equipment; judging whether the initiating-end equipment has the authority to access to the target-end equipment or not according to the access authority control information; allowing the initiating-end equipment to access to the target-end equipment if the initiating-end equipment has the authority to access to the target-end equipment; and forbidding the initiating-end equipment to access to the target-end equipment if the initiating-end equipment has no authority to access to the target-end equipment.

The invention discloses a multi-functional vehicle-mounted charger. The multi-functional vehicle-mounted charger comprises a charger body and an adaption cover, wherein the adaption cover is detachably connected onto the charger body, the charger body comprises a conductive rod, a safety hammer is arranged at the end part of the conductive rod, the adaption cover encircles the safety hammer when arranged on the charger body, an adaption conductive rod is arranged on the adaption cover and used for electrically connecting an external power supply, and the adaption conductive rod is electrically connected with the conductive rod. The vehicle-mounted charger disclosed by the invention has effects of charging and window breakage: 1, a potential risk is eliminated, and the vehicle-mounted charger is convenient to use; and 2, on one hand, the risk of a safety accident is effectively reduced; and on the other hand, a warning effect can be developed, and the vehicle-mounted charger is used for enhancing the safety awareness of a user.

A synergistic herbicidal pesticide composite consists active ingredients and auxiliary ingredients acceptable in pesticide, wherein the active ingredients are flufenacet and picloram of which weight ratio is (160-2):1. The combination of the two active ingredients in the composite generates synergy; and the composite is especially suitable for the weeding of the rape field, the wheat field and the corn field, and can prevent and control various latifoliate weeds; the herbicidal spectrum is expended, the herbicidal effect is improved effectively, the cost is reduced and the safety to crops is improved.

The invention provides a safe type phase change heat storage water tank. The safe type phase change heat storage water tank comprises a shell body (1) with a heat exchanger. The shell body (1) is internally provided with an electric heating element (3) and loaded with a phase change heat storage material. The shell body (1) is provided with protection fluid (4) and a safety tube (2). The phase change heat storage material floats on the protection fluid (4). The phase change heat storage material and the protection fluid (4) form a layered structure. The boiling point of the protection fluid (4) is higher than the phase change temperature of the phase change heat storage material. One end of the safety tube (2) extends into the protection fluid (4), and the other end of the safety tube (2) communicates with the atmosphere. According to the safe type phase change heat storage water tank, due to the fact that the boiling point of the protection fluid is higher than the phase change temperature of the phase change heat storage material, when the temperature of the phase change heat storage material is higher than the boiling point of the protection fluid, the temperature of the phase change heat storage material can be prevented from further increasing due to the fact that a large amount of heat energy needs to be absorbed in the protection fluid boiling process, and the vaporized protection fluid is discharged out of the water tank through the safety tube, so that the safety accident risk caused by over-temperature is effectively reduced.

The invention discloses a preparing method of cellulose composite sponge. The preparing method of the cellulose composite sponge comprises the following steps of 1, preparing an aqueous solution of HPMC and an aqueous solution of CMC separately, and conducting even stirring to make the aqueous solution of HPMC and the aqueous solution of CMC fully dissolved; 2, proportionally mixing the aqueous solution of HPMC and the aqueous solution of CMC which are prepared in the step 1, and conducting even mixing; 3, freezing and drying the evenly mixed liquid obtained in the step 2; 4, cross-liking the frozen and dried mixture obtained in the step 3 in a cross-linking agent; 5, using a refrigerator to freeze and dry the cross-linking product cross-linked in the cross-linking agent obtained in the step 4 to obtain a spongy product; 6, packaging and sterilizing the spongy product obtained in the step 5 to obtain the cellulose composite sponge used for hemostasis nursing. According to the preparing method of the cellulose composite sponge, the water absorption and the water binding capacity of the composite material are improved, and the wet strength and flexibility are remarkably improved.

The embodiment of the invention provides an identity verification method and device. On the one hand, the method comprises the following steps: outputting first information, then receiving a voice signal input by a user according to the first information, and then performing voiceprint recognition according to the voice signal to obtain a recognition result; verifying the content of the voice signal to obtain a verification result; and then obtaining an identity verification result of the user according to the recognition result and the verification result. Therefore, the technical scheme provided by the embodiment of the invention can solve the problem of relatively high safety risk of the conventional identity verification method in the prior art.

The invention discloses an elevator safety remaining useful life confirming method under the circumstance of maintenance, belongs to the field of confirmation of elevator unscheduled maintenance timeinterval and remaining useful life based on elevator operation big data, and relates to model establishment and algorithm innovation. The technical scheme is that: (1), confirming elevator safety remaining useful life model and slope threshold value; (2), confirming the elevator performance after preventative maintenance based on performance recovery factors and performance descent rate expansionfactors; (3), confirming the safety remaining useful life model after ith preventative maintenance according to results of step (2). According to the invention, the elevator safety remaining useful life model for confirming maintenance time interval and being capable of predicating the remaining useful life is established, so that the model is more practical; and the specific industry background of the elevator equipment is combined to optimize and innovate the existing methods, so that the model is more reliable; the model obtained based on the method provided by the invention is practical and more reliable.

The invention discloses a nut automatic projection welding device which comprises a nut conveyor, a projection welding machine, two lifting mechanisms, a servo mechanism and four work fixtures. The nut conveyor is arranged at the side surface of the projection welding machine, the servo mechanism is supported by bases and connected with guide rails of the two lifting mechanisms, and the servo mechanism is provided with two slide brackets connected with the lifting mechanisms correspondingly. The four work fixtures are divided into two sets. The two sets of work fixtures are mounted on the twolifting mechanisms correspondingly, and fixedly connected with the lifting mechanisms.

The embodiment of the invention discloses a method and apparatus of on-line verification. The method includes the steps of conducting flight adaptability verification for an unmanned aerial vehicle (UAV) system, the verifying items including at least one of the followings including a UAV system configuration, or flight adaptability verification of data configuration associated with safety operation, and determining processing measures of a UAV system according to verification result. On-line verification of a UAV is realized to ensure that the UAV is on an acceptable safety level.

The invention discloses an interface call injection preventing method and system. The method and the system relate to the computer internet technology, and solve the problem that a URL request is maliciously tampered. The method comprises: a sender sorts request parameters in a uniform resource locator (URL) request according to a preset sorting rule consistent with a receiver; the sender generates a first signature according to the sorting result; and the sender adds the first signature to the URL request and send the URL request with the first signature, so that the receiver verifies the parameter status of the URL request. The technical solution is applicable to the URL request and implements a mechanism for verifying the parameter status of the URL request.

The invention discloses a quantum conference key negotiation method and system based on coherent detection, and the method comprises five stages: preparation, measurement, modulation, parameter estimation and post-processing, data under a time basis vector is used for extracting a quantum conference key, and data under an interference basis vector is used for calculating the contrast. The quantumconference key negotiation system comprises a continuous laser, an intensity modulator, a beam splitter and a single photon detector. The continuous laser generates phase-stable continuous light; theintensity modulator is used for carrying out pulse preparation on the passed optical signal and transmitting a pulse signal to the detection end; the beam splitter I and the beam splitter II are usedfor splitting an optical signal of the transmitting end; the beam splitter III is used for carrying out beam combination on the optical signals; the beam splitter IV and the beam splitter V form a Mach-Zehnder interferometer; the detector detects an optical signal at the detection end. The method is high in operability, experimental equipment is simple, phase randomization and different intensitymodulation are not needed, the safety risk is reduced, and the linear limitation of the code forming rate and the transmission distance in a relay-free quantum conference key agreement protocol is broken through.

The invention provides an intelligent robot for bridge maintenance and inspection and belongs to the field of bridge engineering robots. The intelligent robot for bridge maintenance and inspection comprises a robot body. The robot body is provided with a control device, a traveling device and a camera device, and further comprises a machine body. The traveling device comprises a drive motor and four idler wheels arranged on the side portion of the machine body. An installation table is arranged on the upper portion of the machine body. The camera device comprises a camera. The intelligent robot can be used independently and can also cooperate with a bridge inspection vehicle for use, can complete the operations of traveling, stop, inspection, shooting and the like automatically, and has the characteristics of being highly automatic, high in inspection precision and comprehensive in inspection. The bridge inspection and maintenance efficiency can be improved, and the maintenance cost is reduced; the safety accident risk can be reduced for staff; and the intelligent robot can be widely applied to girder bridges, arch bridges, suspension bridges and the like. The intelligent robot is applicable to both bridge maintenance and bridge construction, and can improve the construction efficiency.

The invention relates to a static pressure measuring structure for the wall surface of a flame tube, a combustion chamber, a combustion chamber test system and a connecting device. The static pressuremeasuring structure comprises: a flame tube wall surface, which comprises a plurality of cooling holes and mounting holes located among the plurality of cooling holes; a static pressure tube; and theconnecting device, which is detachably connected with the flame tube wall surface through the mounting holes and is provided with a first channel, wherein one end of the first channel is connected with the static pressure tube, and the other end of the first channel is provided with an opening so as to allow the flame tube to communicate with the static pressure tube.