34results about How to "Reduce potential security risks" patented technology

An infrared distance measurement collision avoidance method and terminal. The method comprises: turning on an infrared distance measurement module when the moving speed of a user of a hand-held terminal is detected to be higher than a set threshold value and the setting application on the terminal is turned on; adjusting the infrared distance measurement module according to a current inclination angle of the terminal relative to the horizontal position, so as to enable the axis of the detection direction of the infrared distance measurement module to be parallel to the ground; controlling the infrared distance measurement module to detect the distance between an obstacle around the user and the user and/or the moving speed of the obstacle; outputting an alarm prompt according to the distance, and the moving speeds of the user and/or the obstacle. The invention also discloses the corresponding terminal. The infrared distance measurement collision avoidance method and terminal disclosed by embodiments of the invention have good adaptive capacity to environment, can adjust the detection direction with self-adaption, thus reduces, to the maximum extent, potential safety risk for users caused by using the hand-held terminal when walking, and prevents users from accidental injury.

The invention belongs to the technical field of security and protection facilities and particularly relates to an invisible anti-theft net comprising an upper beam, a lower beam and steel wires. The upper beam comprises an upper frame body, an upper mounting plate is connected to the upper frame body, and upper mounting holes are formed in the upper mounting plate. Upper wire penetrating holes areformed in the bottom of the upper frame body, wire outlet holes are formed in the rear side wall of the upper frame body, and a fixing mechanism is connected to the rear side wall of the upper framebody. A wire winding mechanism is mounted in the upper frame body, the lower beam comprises a lower frame body, and a lower mounting plate is connected to the lower frame body. Lower mounting holes are formed in the lower mounting plate, and lower wire penetrating holes are formed in the top of the lower frame body. Fixing heads are connected to the lower ends of the steel wires and mounted in thelower frame body, and the steel wires sequentially penetrate through the lower frame body and the upper frame body, are wound around the wire winding mechanism and then penetrate through the rear side wall of the upper frame body to be connected with the fixing mechanism. According to the invisible anti-theft net, the mounting process is simple and rapid, and after tension of one certain steel wire is reduced or the certain steel wire is broken, the other steel wires can still take the protection effect; and the later-period maintenance time can be shortened, and the maintenance cost is reduced.

The invention relates to the field of agricultural biotechnology, and in particular relates to a glyphosate-resistant EPSPS mutant gene, a plant genetic transformation screening vector containing thegene, and an application of the vector. The eleusine indica 5-enolpyruvyl shikimate-3-phosphate synthase mutant gene provided by the invention can endow plants with high resistance to glyphosate. According to the plant genetic transformation screening vector using an expression cassette as a selection marker and a screening method provided by the invention, callus can use the glyphosate as a screening agent in the tissue culture stage, and the obtained transgenic plants have high resistance of a glyphosate herbicide; the vector can be used as a transgenic screening vector to be used with additional functional elements, plant-derived genes can be used to replace exogenous screening marker genes such as bacterial sources in the transgenic process, so that the method for plant transgenic screening is enriched, potential safety risks of the transgenic plants caused by the exogenous genes can be effectively reduced, the commercial application of the transgenic plants is facilitated, and themarket value and social benefits are good.

The invention relates to the technical field of agricultural biology, in particular to a plant transgenic screening vector pCALSm1 and application thereof. According to the plant genetic transformation screening vector provided by the invention, an expression cassette containing a rice acetolactate synthase mutant gene is used as a screening marker; in the callus screening stage, pyrimidinylsalicylic acid, imidazolinone and other herbicides are used as screening agents, and the obtained transgenic plants have high resistance to pyrimidinylsalicylic acid, imidazolinone and other herbicides. Thevector can be used as a transgenic screening vector to be added with other functional elements; a plant endogenous gene is utilized in a transgenosis process; exogenous selection marker genes such asa bacterial source are not introduced, so that not only are plant transgenic screening methods enriched, but also potential safety risks of transgenic plants caused by exogenous genes and worries ofthe public about the transgenic plants can be effectively reduced, commercial application of the transgenic plants is facilitated, and the market value and social benefits are good.

The invention relates to the technical field of agricultural biology, in particular to a rice ALS mutant gene, a plant transgenic screening vector pCALSm3 which contains the gene and application of the plant transgenic screening vector pCALSm3. The amino acid sequence of the rice ALS mutant protein is shown in SEQ ID No. 1. According to the plant genetic transformation screening vector, an expression cassette of the rice ALS mutant gene is used as a screening marker, pyrimidinylsalicylic acid, imidazolinone and other herbicide are used as screening agents in a callus screening stage, and obtained transgenic plants have high resistance to pyrimidinylsalicylic acid, imidazolinone and other herbicide. The vector can be used as a transgenic screening vector which is matched with other functional elements, and plant endogenous genes are utilized in the transgenosis process, no bacterium sources and other exogenous screening marker genes are introduced, so that a plant transgenosis screeningmethod is enriched, potential safety risks, caused by the exogenous genes, of the transgenic plants are reduced effectively, and commercial application of the transgenic plants is facilitated.

The invention relates to the technical field of agricultural biology, in particular to a plant constitutive promoter OsUbipro and application thereof. The nucleotide sequence of the promoter OsUbiprodisclosed by the invention is as shown in SEQ ID NO. 1. The promoter OsUbipro disclosed by the invention is a rice endogenous source constitutive promoter; the promoter can drive efficient and stableexpression of genes in plant calluses and leaves in the vegetative growth period, especially seedlings in the 3-5-leaf period, reproductive organs and other tissues, can replace non-botanical promoters, is very beneficial to genetic engineering of rice and other plants, and can effectively reduce the potential safety risk of transgenic plants caused by exogenous DNA.

The invention relates to the technical field of agricultural biology, and particularly relates to a plant constitutive promoter ALSpro and application thereof. The nucleotide sequence of the promoterALSpro is shown in SEQ ID NO. 1 or SEQ ID NO. 2; and the promoter ALSpro is a rice endogenous constitutive promoter, can drive genes to be efficiently and stably expressed in callus tissues, leaves inthe vegetative growth period and other tissues and reproductive organs, can replace non-plant-source promoters, is very beneficial to genetic engineering of rice and other plants, and can effectivelyreduce the potential safety risk of transgenic plants caused by exogenous DNA.

The invention discloses a multifunctional desk lamp. The multifunctional desk lamp comprises a lampshade, a bulb, a lamppost and a lampholder, wherein the lampshade of the multifunctional desk lamp iscircular truncated cone shaped and is made from a metal aluminum; a pen container is mounted on the upper left side of the lampholder of the multifunctional desk lamp, the inner part of the pen container is divided into a shallow placing region and a deep placing region, and a small night light is mounted below the shallow placing region; a storage box is mounted on the lampholder of the multifunctional desk lamp, and a cover is mounted above the storage box; power supply jacks are formed in the left lower side of the lampholder of the multifunctional desk lamp; and USB jacks are mounted on the lampholder of the multifunctional desk lamp. The multifunctional desk provided by the invention is reasonable in structural design and various in function, can provide a plurality of standard powersupply jacks and a plurality of USB jacks, reduces use of a plugboard, reduces pulled electric wires on the desktop and reduces the potential security risks, and meanwhile, the pen container and thestorage box are also additionally mounted on the lampholder, so that the multifunctional desk lamp is convenient and practical, and the working and learning efficiencies are improved.

The invention relates to the field of processing of liquid dairy products, and provides a method used for preparing milk sterilized at low temperature and ultrahigh pressure and capable of reducing hot processing byproducts. Fresh raw milk which is qualified according to a raw milk inspection result is used as raw milk. The method comprises the following steps: (1) low-temperature pretreatment: after purifying the raw milk, preserving the raw milk at a temperature of 50 DEG C for 10-20 minutes, and conducting homogenizing at 15-20 MPa; (2) canning: canning the raw milk pretreated in the step (1) into a sterile food-grade PET bottle; and (3) ultrahigh-pressure sterilization: putting the canned milk in the step (2) into an ultrahigh-pressure device, and treating the canned milk at 500-600 MPa for 10-15 minutes to obtain the sterilized milk with reduced hot processing byproducts. According to the method disclosed by the invention, low temperature treatment is combined with static ultrahigh pressure treatment, so hot processing byproducts, including furosine, 5-hydroxymethylfurfural, carboxymethyl lysine and carboxyethyl lysine, generated in traditional hot processing of liquid milk can be effectively reduced and controlled, nutrient loss is reduced, and the quality safety of the liquid milk is improved.

The invention discloses a preparation method of sterilized cow milk with reduced alpha-dicarbonyl compounds. Fresh raw milk which is qualified according to an inspection result is used as raw milk in the invention. The method comprises the following steps: (1) degreasing treatment: after purifying the raw milk, centrifuging 3000-4000 g of the purified raw milk at a temperature of 15 DEG C for 10-2 minutes, and removing upper-layer fat to obtain low-fat milk; (2) canning: canning the raw milk pretreated in the step (1) into a sterile food-grade PET bottle; and (3) ultrahigh-pressure sterilization: putting the canned milk in the step (2) into an ultrahigh-pressure device, and treating the canned milk at 500-600 MPa for 15-25 min to obtain the sterilized milk in which the alpha-dicarbonyl compounds are reduced. By using the method disclosed by the invention, alpha-dicarbonyl compounds including glyoxal, pyruvic aldehyde, butanedione and 3-deoxyglucaldehyde ketone generated in traditional hot-processed liquid milk can be effectively reduced and controlled, nutrient loss is reduced, and the quality safety of the liquid milk is improved.

The invention provides an application of ethyl maltol as a fungus inhibitor. According to the invention, ethyl maltol can serve as a fungus bacteriostatic agent to be applied to preparation of plant pesticides and plant seed coating agents, can also serve as the fungus bacteriostatic agent to be added into traditional Chinese medicine liquid preparations or semi-fluid preparations so as to effectively inhibit growth and reproduction of fungi including mould, can serve as a safe plant pesticide to reduce plant fungi diseases, inhibit mildewing and deterioration of seeds, reduce the mildewing and deterioration probability of the seeds or avoid the mildewing and deterioration of the seeds, and improve the seed germination rate, and can provide the inherent aroma enhancement function while integrating aroma enhancement, mildew prevention and corrosion prevention, enhance the stability of traditional Chinese medicine liquid preparations and semi-fluid preparations, replace or reduce the use of other toxic preservatives, reduce the use variety of additives, and reduce the potential safety risk of the additives, especially the preservatives.

The invention discloses a V2X anonymous certificate management method and device in the Internet of Vehicles, a storage medium and equipment, and the management method comprises the steps: receiving an anonymous certificate request which is transmitted by vehicle-mounted terminal equipment and comprises a registration certificate, an anonymous certificate batch number and a certificate index value of the vehicle-mounted terminal equipment through an authorization mechanism; decrypting and verifying the request, and searching a corresponding anonymous certificate application record after verification is passed; if the application records of the same batch number of the same certificate exist, judging whether the request is sent repeatedly or not according to the certificate index value; if yes, reporting an error; and otherwise, carrying out assignment processing on the valid period of the requested batch anonymous certificate. Therefore, the method does not depend on the capability of providing a trusted clock by terminal equipment, and the equipment cost is reduced; Meanwhile, based on the mode that the PKI system carries out validity period distribution on the pre-applied anonymous certificates, the possibility that a large number of anonymous certificates are maliciously applied after the equipment is intruded can be prevented, and the information security protection capability of the system is effectively improved.

The invention discloses a message controlling method and device in an instant messaging client. The method comprises the steps that a first message content inputted by a message sending end user in a message conversation interface is received; whether a URL address exists in the first message content is judged; if the URL address exists in the first message content, the web page summary information of a corresponding web page is acquired according to the URL address, and a second message content is generated according to the web page summary information and the first message content; the second message content is sent to a server; and a message receiving end receives the second message content forwarded by the server and presents the second message content on the message conversation interface in the message receiving end. A target user can visually and conveniently know the general situation of the web page content corresponding to each URL in the message content in advance; and an auxiliary reference is provide for the target user to make the decision whether to visit a web page corresponding to the URL.

The invention relates to a bus sharing type modular electric power metering box, the electric power metering box is provided with a sharing bus and a bus splicing module, the two ends of the sharing bus are provided with conductive plug-ins, one end of the bus splicing module is provided with a conductive plug, the conductive plug passes through the conductive plug-ins and then is fastened with the sharing bus, and the sharing bus and the bus splicing module are mutually connected. And a bell and spigot is welded on the shared bus. The modularized back insertion type metering device is adopted, installation is fast, maintenance and replacement are easy, capacity expansion is convenient, and the single-meter-position and multi-meter-position installation modes adopted at present can be replaced.

The invention provides a battery output power control method in an electric vehicle safety anti-collision system, and belongs to the technical field of electric vehicles. The technical problem that the safety coefficient of an existing electric automobile safety anti-collision system is not high enough is solved. According to the battery output power control method in the electric automobile safety anti-collision system, signals of the automobile speed and the distance measuring sensor are directly connected or sent to a BMS (battery management system) through CAN communication, and a PCU (discharge output power control unit) is controlled; 0-100% programmable output of the battery discharge output power is automatically set according to the distance between a target object in front of the running vehicle and the vehicle, the vehicle speed of the vehicle, a brake pedal signal and an accelerator pedal as constraint conditions. According to the method, the discharging output power of the battery is controlled according to the speed of the vehicle in the running process, the distance between the vehicle and the target object and the brake signal state, and the potential safety risk of the vehicle can be controlled from the energy source.

The invention provides a preparation method of a color-changeable natural pigment water-based manicure agent, which comprises the following steps: (1) washing carmine radish, cutting into particles, soaking with absolute ethyl alcohol, filtering, soaking residues again, and combining filtrate; (2) performing vacuum concentration on the filtrate; (3) purifying the concentrated solution to obtain an eluent; (4) carrying out vacuum concentration on the eluent, and freeze-drying to obtain carmine radish pigment; (5) adding pectin into the calcium chloride solution, and stirring to obtain colloidal liquid; (6) adding the carmine radish pigment into the colloidal liquid, and stirring to obtain liquid A; (7) uniformly mixing water-based acrylic resin and polyacrylic resin, and adding the mixture into the liquid A to obtain liquid B; and (8) adding neutral aluminum oxide into the liquid B, and stirring. According to the color-changeable natural pigment water-based manicure agent, the high-purity carmine radish pigment is adopted as the coloring agent, and the coloring agent is a natural pigment, is free of toxic and side effects, is good in safety and can present different colors under different pH conditions.

The invention provides a phosphate mannose isomerase (PMI) gene OsPMI2 originating from a plant. The PMI gene OsPMI2 is separated and cloned from oryza sativa. A nucleotide sequence of the PMI gene OsPMI2 is shown in SEQ ID NO:1. The invention also provides a prokaryotic expression vector containing OsPMI2, an enzyme activity analysis method of PMI, an expression cassette containing OsPMI2, a plant expression vector and an application of the expression cassette and the expression vector to plant genetic transformation. Oryza sativa cell transformation is successfully achieved by utilizing the constructed plant expression vector of the gene OsPMI2 and taking mannose as a screening agent. The PMI gene originating from the plant is successfully separated and cloned. Originating from the plant (oryza sativa), the PMI gene does not pose a potential hazard to human. The PMI gene can be used to replace PMI from escherichia coli, thus reducing potential safety risks.