214results about How to "Reduce the risk of security incidents" patented technology

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 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 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 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 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 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.