580results about How to "Reduce insecurity" patented technology

The invention discloses a hydrocracking process operation method. Hydrocracking pre-refining catalyst is treated by precuring outside a reactor while hydrocracking catalyst is not treated or is partially treated by precuring outside the reactor. Curing ingredient introduced by the hydrocracking pre-refining catalyst and the hydrocracking catalyst precured outside the reactor accounts for 90-120% of the theoretical sulfur demand for all the catalyst. The hydro cracking pre-refining catalyst and the hydro cracking catalyst are layered in the reactor and then activated by heating, so that all the catalyst is sulfurated effectively. The method of the invention can precure the hydrocracking pre-refining catalyst outside the reactor or precure the hydrocracking pre-refining catalyst and partial hydrocracking catalyst outside the reactor, thus reducing the catalyst requiring precuring outside the reactor, reducing the production period and production cost of the precuring catalyst and improving the economic benefit and production security.

The invention discloses a large cross-section weak surrounding rock tunnel three-step and six-part short-distance construction method, which comprises the steps as follows: (1) annularly excavating an upper step of an upper part arc pilot tunnel, transferring excavated earthwork of the upper step to a lower step; (2) excavating a left part of a middle step about 4.5-5 meters behind the upper step, and transferring excavated earthwork to the lower step; (3) excavating a right part of the middle step about 3-4 meters behind the left part of the middle step, and transferring excavated earthwork to the lower step;(4) excavating a left part of the lower step about 6-8 meters behind the left part of the middle step or about 3-4 meters behind the right part of the middle step, and conveying excavated earthwork of the left part of the lower step out of the tunnel; (5) excavating a right part of the lower step about 3-4 meters behind the left part of the lower step, and conveying excavated earthwork of the lower step out of the tunnel; and (6) excavating the rest part of the tunnel bottom about 20-25 meters behind the right part of the lower step, excavating continuously according to the steps in a circulating and interlacing manner, and finally realizing tunnel excavating construction. The method can be used for building a large cross-section tunnel in a safe, rapid and economic manner.

In the event that job data to be transmitted from a first information processing device is first-type job data, but a second information processing device is not ready to immediately perform processing of the job data, the first information processing device can be inhibited from transmission of the job data. In the event that job data to be transmitted from the first information processing device is the first-type job data and the second information processing device is ready to immediately perform processing of the job data immediately, the first information processing device is permitted to transmit the job data. Thus, various types of problems or user demands that can occur in a situation in which a user accidentally or inadvertently transmits critical data such as secret documents or private documents or the like to a device which cannot process the job data immediately are handled as much as possible.

The integral building truss lifting method features that the lifting process includes assembling the main truss on ground in two units; manufacturing and installing corresponding lifting frame; setting cable system on the elevating frame and installing hydraulic elevator in corresponding position; installing the truss ground end shifting units; lifting the two elevated ends of the truss units with the hydraulic elevator synchronously while ensuring the horizontal shift of the ground ends of the truss units under the control of main computer; dismantling the ground end shifting units after the overhead butt joints are in place; elevating and fixing the ground ends; and assembling the overhead butt joints.

The invention discloses a technology for separating low carbon olefin gases, for solving the problems that hydrogen, methane, ethane and propane and other products with high purity can not be acquired and dimethyl ether and oxygen and carbon monoxide in impurities are not removed efficiently, etc. in the prior art. The technology is characterized in that a step of removing carbon monoxide and oxygen is added, methanol-to-olefin gas streams processed by removing carbon monoxide and oxygen enter into a deethanizing column, deethanizing column overhead streams successively pass through an ethene hydrogenation reactor, six separation pots, a low pressure demethanizing column and an ethene rectification column, etc. to separate to obtain ethene and ethane products, and deethanizing column bottom streams successively pass through a propyne hydrogenation reactor, a methane stripper and a propylene rectification column, etc. to separate to obtain propylene and propane products. According to the invention, polymer grade ethene and propylene products can be obtained, and hydrogen, methane, ethane and propane products, etc. with high purity can be obtained.

The invention discloses a vehicle auxiliary braking control method which comprises the steps that an accelerator pedal signal and a brake pedal signal of a vehicle are obtained; the state of an accelerator pedal and the state of a brake pedal are judged according to the accelerator pedal signal and the brake pedal signal; if the accelerator pedal is in a loose state and the brake pedal is in a depressing state, the current speed is further detected for the vehicle; if the current speed of the vehicle is larger than a preset speed, the opening size of an exhaust valve of a vehicle engine is adjusted, so that auxiliary braking is conducted on the vehicle through the engine. According to the embodiment of the vehicle auxiliary braking control method, frequent use of a brake disc for braking can be reduced, the safety of the vehicle in driving is improved, and the service life of the brake is effectively prolonged. The invention further discloses a vehicle auxiliary braking control system and a vehicle including the same.

The invention provides a microemulsion preparation taking rosin-based vegetable oil as a solvent and a preparation method thereof, and relates to a pesticide preparation. The microemulsion preparation consists of the following raw materials in percentage by mass: 0.5 to 30 percent of pesticide active ingredients, 55 to 20 percent of emulsifier, 0 to 8 percent of cosolvent, 0.1 to 0.3 percent of defoamer, 1 to 30 percent of rosin-based vegetable oil, and the balance of water. The preparation method comprises the following steps of: adding the pesticide active ingredients, the rosin-based vegetable oil, the cosolvent, emulsifier and the defoamer into a reaction kettle, performing cutting and uniform dispersion at 2,000 to 5,000 rpm/min, and adding the balance of water into the mixture for high-speed cutting to obtain the microemulsion preparation taking the rosin-based vegetable oil as the solvent.

The invention discloses an online double-sided roller coating process and device for producing high-brightness panels by using a solvent-free UV coating. The process comprises the following steps: uniformly coating the solvent-free UV coating on plastic panels molded on an extruder by virtue of a roller coater, covering a release protection film on the surface with the coating on plastic panels by virtue of a laminating machine, flatly pressing, performing UV curing on the plastic panels, curing the coating by virtue of ultraviolet light penetrating through the protection film, cooling, stripping the surface release protection film and the panels, thereby obtaining the hardened wear-resistant coating layer with high glossiness and high flatness on the surface on the surface of the plastic panels. The process and the device disclosed by the invention are suitable for online double-sided roller coating or online single-sided roller coating, the PET films or other transparent and semi-transparent films serving as the release protection films are compounded with the panels, and the surface leveling problem generated by online roller coating of the plastic panels is solved.

The invention provides an adaptive coordinate control method for an urban area traffic signal, wherein a plurality of control optimization algorithms with different characteristics are integrated. Through establishing a timing module, a signal timing parameter at an area intersection is optimized according to the actual condition of a traffic flow. No matter the mounting position of a traffic flow detector in a road segment, control technology can be reasonably selected according to a configuration position condition. The method is suitable for signal adaptive coordination control with different traffic states in the area. Based on traffic requirements of the intersection in a plurality of periods, for improving integral traffic operation efficiency of an area, a phase requirement of a single intersection is comprehensively analyzed. An area signal adaptive coordination control strategy is made. Furthermore overflow (deadlock) detection and phase different optimization are performed on the traffic flow of the road segment, thereby reducing un-stability and potential safety hazard of the traffic flow caused by a real-time adaptive system, improving area traffic operation condition, alleviating traffic jam and improving passing capability of the area traffic.

The present invention describes the user authentication system comprising of multiple levels of security which is used to authorize the user. The system uses more than one levels of authentication process which receives the credentials from the user and authorizes them to allow access to the IoT devices which are used by the user.

The connected devices represent individual targets, for the cyber-criminals who 20 would hack the devices to retrieve the secure information of the users. Such insecurities about the IoT, devices and the system are eliminated by using the multiple level user authentication system which is described in the present invention.

The invention discloses a preparation technique of non-pegylation docetaxel long-circulating liposome which meets clinical and large-scale production requirements and a freeze-dried powder-injection; the liposome consists of docetaxel, neutral phospholipid, charged phospholipid, cholesterin, antioxidant, excipient, buffering agent and water for injection; the preparation technique includes the following steps: preparing multivesicular liposome, homogenizing the liposome, fixing volume, sterilizing, split charging, freeze drying, etc. The liposome increases the solubility of drugs, overcomes poor stability of docetaxel injection and toxicity caused by complex solvent and prolongs the in vivo circulating time of drugs; compared with pegylation long-circulating liposome, the toxicity is decreased and the inhibiting effect on tumor cells is strengthened.

The invention discloses an electric vehicle low voltage power supply system with a battery balance adjustment function and a control method of the electric vehicle low voltage power supply system, and relates to the technical field of electric vehicle power supply systems. The system comprises an electric vehicle double circuit power supply system, and can implement maintenance, self-checking and evaluating on a battery. The system comprises the battery, a first switch, a second switch, a power source management module, a low voltage load, a first node, a second node, a third node, a key switch module, a vehicle control module and a third switch; one end of the first switch, one end of the second switch and the positive electrode end of the battery are connected to the first node; the other end of the second switch, the other end of the third switch, the power source interface positive electrode end of the power source management module and the power source interface positive electrode end of the low voltage load are all connected to the second node; the negative electrode end of the battery, the power source interface negative electrode end of the power source management module, the power source interface negative electrode end of the low voltage load and the power source interface negative electrode end of the vehicle control module are all connected to the third node.

The invention provides temporary cross bracings of a space cable suspension bridge and a lifting-constructing method of the temporary cross bracing. The lifting-constructing method comprises the following steps: firstly, mounting a main cable; secondly, mounting trusses at positions of mid-span, one-fourth span, and three-fourths span to form a developed bridge space cable surface for supporting cables; thirdly, mounting cable clamps and suspension cables; finally, lifting and mounting a steel box girder. According to the method of the invention, the constructing method is adopted, that is, the main cable is erected firstly, and then a stiffening girder is lifted and mounted, so that the navigation requirement during a constructing period can be ensured and the disadvantage of erecting a temporary support can be overcome; through arranging truss cross bracings, the main cable is transited from a cable horizontal alignment shape to a developed bridge space cable shape; the cable clamps does not need to be pre-deflected in a horizontal bridge direction; all that is needed is to mount the cable clamps according to the inclined angle formed by that the suspension cables are perpendicular to a down bridge direction under the condition of the developed bridge so as to ensure that the parts between the ear plates of the cable clamps and the ear plates of the suspension cables do not bend during the lifting and mounting process of the steel box girder.

The invention discloses processing equipment for a bearing cage. The equipment comprises a female die (1), a male die (2), a first power component and an automatic feeding device, wherein the female die (1) and the male die (2) are used for punching a workpiece (5); the first power component (3) pushes the workpiece (5) until the workpiece (5) is sleeved outside the female die (1); the automatic feeding device is provided with a second power component (4); the power direction of the second power component (4) and the power direction of the first power component (3) form a preset angle; and the workpiece (5) is pushed to a preset position through the second power component (4), and then pushed to the female die (1) through the first power component (3). The processing equipment has the advantages of effectively improving the production efficiency of the bearing cage, reducing the effects of personal factors on the bearing cage and enhancing the production quality of the bearing cage.

The invention discloses a process for the preparation of 3-hydroxyacrylonitrile metal salts which comprises the steps of, subjecting acetonitrile and formic acid ester to condensation reaction under the action of metal alkyl oxide at 20-60 deg. C and 1-5 barometric pressure. The process for the preparation of 3-hydroxyacrylonitrile metal salts provided by the invention can realize good yield and convenient operation in preparing cytosine.

The invention provides a power battery main negative relay state detection circuit and method. The power battery main negative relay state detection circuit comprises a power battery high-voltage circuit and a high-voltage controller, wherein the high-voltage controller includes an insulation detection circuit and a grounding branch circuit, a first terminal of the insulation detection circuit isconnected with the positive electrode of a power battery, a second terminal of the insulation detection circuit is connected with the negative electrode of the power battery, the grounding branch circuit includes a first switch and a test resistor, a first end of the first switch is connected with a third terminal of the insulation detection circuit and grounded, a second end of the first switch is connected with a first end of the test resistor, and a second end of the test resistor is connected with a second end of a negative electrode relay. The invention adopts a method of introducing thegrounding circuit, which is not only simple and feasible but also eliminates unsafe factors in the high-voltage electrifying process of the power battery compared with a method of additionally arranging a plurality of detection circuits and measuring resistors in the prior art.

The technical scheme of the invention provides a brand-new elastic-plastic time-history analysis and displacement based seismic design method for a framework structure. Floor shear force calculated with a traditional inelastic displacement response spectrum and displacement based design method considering multiple vibration modes and earthquake action universality is taken as a check reference, thereby maximally reducing unsafe factors possibly caused by individual difference of earthquake waves. The invention aims to solve the technical problem in an existing displacement design method and is necessary to provide a design method capable of directly and effectively considering factors with important influences on displacement response of the framework structure and effectively controlling the displacement response of the framework structure under the specific earthquake action.

The invention relates to a green method for nitrifying benzene with nitric acid to prepare nitrobenzen. The method takes silica-loaded cesium phosphomolybdate or cesium phosphotungstate as a catalyst, and employs nitric acid as a nitrating agent to nitrify benzene so as to prepare nitrobenzen. The method disclosed in the invention eliminates unsafe factors in generating polynitrobenzene, oxygen-containing compounds and other detonation matters, and has high yield, convenient catalyst recovery, reutilization and other environmental protection characteristics.

An improved wefted hair extension method and device that is an improvement upon the standard weft with any grade, shade or texture of hair attached. Extending from the top of the weft are pairs of threads going exactly through the center of the weft. Each pair of threads has a round tipped guide in place of a needle and thread to navigate the thread through the braid. The time spent in application of the wefted hair to the person's natural hair is greatly reduced by use of precisely positioned and pre-threaded attachment threads that can be placed along the length of the wearers braid and quickly secured.