31results about How to "Low probability of escape" patented technology

A multi-police-officer collaborative round-up task allocation and path planning method under the constraint of a road network, including: acquiring a road topological map G of the road network; acquiring police officer distribution information and information of a task target location in the G of the road network; according to the position where the task target appears, a set of nodes that the task target is next likely to reach are determined; acquiring the movement speed of police officers and the task target; confirming a set of police officers to be assigned according to an interception point set and the movement speed of the police officers and the task target; calculating the congestion degree of each intersection in the interception point set; building a multi-police-officer collaborative round-up task allocation and path planning optimization model; solving the optimization model to obtain a multi-police-officer collaborative round-up task allocation and path planning scheme.

The invention discloses a low light level detector which is based on a second generation inverting image intensifier and performs local gating at normal temperature. The low light level detector comprises a detector shell, wherein the detector shell is divided into an upper cavity body and a lower cavity body; a light measurement CCD, a video acquisition module, a field programmable gate array, a liquid crystal driving module, a power supply and a display screen are sequentially arranged in the upper cavity body; one end, which is connected with the light measurement CCD, outside the upper cavity is provided with a lens A; the other end of the upper cavity is provided with a pushbutton; a liquid crystal board, a magnetic mirror array image intensifier, an optical fiber taper and an imaging CCD are sequentially arranged in the lower cavity; one end, which is connected with the liquid crystal board, outside the lower cavity is provided with a lens B; and the lens A and the lens B are parallelly arranged. The detector changes the mode of the prior CCD to the integration of optical signals, adopts the HTPS liquid crystal board simultaneously, automatically performs local gate control on light intensity, has wider dynamic application range, and can normally work and clearly image within the light intensity range of between 10<-8> and 10<5>lx.

The invention discloses rear-earth red long afterglow polyarmide fiber and a preparation method thereof. The rear-earth red long afterglow polyarmide fiber is characterized by consisting of the following materials in percentage by weight: 90wt%-96wt% of polyarmide spinning materials, 3wt%-10wt% of rear-earth magnesium silicate luminescent material and less than 1wt% of nanometer functional auxiliaries. The preparation method of the rear-earth red long afterglow polyarmide fiber comprises the following steps of: mixing luminescent master batch prepared from the materials with polyarmide slices in proportion; spinning and winding by utilizing a screw extruder through a special spinning process after drying for a certain time and temperature to prepare POY (Polyester Pre-Oriented Yarn); and texturing the POY to prepare DTY (Draw Textured Yarn) or stretching the POY to prepare FDY (Fully Drawn Yarn). The polyarmide fiber prepared by utilizing the method can emit red afterglow with wavelength of 600nm-750nm after being excited by daylight or fluorescent light, wherein the afterglow initial brightness is 2cd/m<2>/3cd/m<.2>, and the afterglow service life can reach 4 hours to 6 hours. Moreover, the luminescent fiber is non-toxic and harmless, and free of any bad interference to body and environment.

The invention relates to a rare-earth silicate blue long-afterglow fiber and a production method thereof. The fiber is characterized by being composed of 90-96wt% of polypropylene spinning raw material, 3-10wt% of rare earth strontium magnesium silicate light-emitting material and less than 1wt% of nano functional auxiliary agent. The fiber is prepared by the steps of: preparing the raw material into light-emitting master batches, then mixing with polypropylene slices according to a ratio, baking and drying at a certain temperature for a certain time, carrying out spinning and winding utilizing a screw extruder through a specific spinning process to prepare POY (Partially Oriented Yarn), and carrying out elasticity enhancing on the POY to obtain DTY (Draw Textured Yarn) or drawing the POY to obtain FDY(Fully Drawn Yarn). The polypropylene fiber prepared by the method can emit blue afterglow with wavelength of 435-500 nm after being excited by sunlight or fluorescence; the initial intensity of the afterglow is 2-3 cd/m<2> and the afterglow life is up to 10-15 hours; and the light-emitting fiber is nontoxic and harmless, and has no any adverse effects to human bodies and environment.

The invention relates to an yttrium oxysulfide red long-afterglow polypropylene fiber and a production method thereof. The yttrium oxysulfide red long-afterglow polypropylene fiber is composed of 90-96wt% of polypropylene spinning raw material, 3-10wt% of rare-earth yttrium oxysulfide light-emitting material and less than 1wt% of nano functional auxiliary; the luminescent master batch made from the raw materials are blended with polypropylene slices; then, the mixture is dried at certain temperature for certain time, and then is spun and wound by using a screw extruder through a special spinning process to form POYs (Pre Oriented Yarns); the POYs can be elasticized to form DTYs (Draw Texturing Yarns), or drafted to form FDYs (Full Drawn Yarns). The polypropylene fibers obtained by the method can be excited by daylight or fluorescent light to emit red long-afterglow having the wavelength ranging from 600 to 720nm; the initial intensity of the afterglow ranges from 2cd/m2 to 3cd/m2; the life of the afterglow can be 4-6 hours; the light-emitting fibers are nontoxic and harmful, and have no adverse effect on the human body and the environment.

The invention discloses a low light level detector which is based on a third generation proximity image intensifier and performs local gating at normal temperature. The low light level detector comprises a detector shell, wherein the detector shell is divided into an upper cavity and a lower cavity; a light measurement CCD, a video acquisition module, a field programmable gate array, a liquid crystal driving module, a power supply and a display screen are sequentially arranged in the upper cavity; one end, which is connected with the light measurement CCD, outside the upper cavity is provided with a lens A; a pushbutton is arranged outside the other end of the upper cavity; a liquid crystal board, a third generation proximity type magnetic mirror array image intensifier, an optical fiber taper and an imaging CCD are sequentially arranged in the lower cavity; one end, which is connected with the liquid crystal board, outside the lower cavity is provided with a lens B; and the lens A and the lens B are parallelly arranged. The detector automatically performs local gate control on light intensity, has wider dynamic application range, and can normally work and clearly image within the light intensity range of between 10<-8> and 10<5>lx.

The invention relates to the field of medical instruments, in particular to a multifunctional treatment catheter. The multifunctional treatment catheter comprises a catheter body and a balloon wrapping the outer wall of the catheter body, wherein a micro-catheter is arranged in the catheter body, the inner part of the micro-catheter is hollow to form a micro-catheter inner cavity channel, a suction inlet is formed in the near end of the catheter body, and a pressurizing inlet is further formed in one side of the near end of the catheter body; the catheter body is a three-cavity catheter whichis not in communication with the catheter body, the three-cavity catheter comprises a suction cavity channel, a pressurizing cavity channel and a micro-catheter inner cavity channel, the suction cavity channel communicates with the suction inlet, the pressurizing cavity channel communicates with the pressurizing inlet, and the catheter not only can block blood flow, but also has a thrombus suctionfunction. The micro-catheter is arranged in the multifunctional treatment catheter, and a thrombectomy stent can be conveyed for mechanical thrombectomy. When catheter thrombus suction is performed,stent thrombus taking can be performed at the same time, so that the operation time is shortened, and expenses borne by a patient and medical insurance expenses are reduced.

The invention provides a printing material for a ceramic core, a preparation method of the printing material and a preparation method of the ceramic core, and relates to the technical field of three-dimensional printing rapid formation. The printing material for the ceramic core includes molding powder; the molding powder is prepared from the following materials in parts by weight: 85 to 93.5 parts of refractory aggregate, 4.5 to 10 parts of a reinforcing agent, 1 to 2.5 parts of a hardener, and 1 to 2.5 parts of a dispersing agent. The use of the printing material for the ceramic core can alleviate the technical problem that an existing ceramic core needs to use a mold to cause easy waste of the mold during a preparation process, and the printing material for the ceramic core is lacked in3DP technique in the prior art, thus achieving the aims of reducing cost and realizing quick printing.

The invention provides an anti-electromagnetic-interference anti-unmanned-aerial-vehicle catching device comprising a head, a tail, a small wing and a propeller structure. A catching device control system is arranged in the head and comprises an information collection module, a control unit and a propeller motor. The information collection module comprises an image collection module, a laser radarscanning module and a close-range electromagnetic wave detection module. The image collection module, the laser radar scanning module and the close-range electromagnetic wave detection module are connected with the control unit. The propeller motor is connected with the propeller structure. The tail is arranged behind the head and is internally provided with a catching net. The small wing is arranged at the head and is connected with the control unit. A compensating circuit is further arranged in the catching device and can conduct opposite offsetting with electromagnetic wave, received by the close-range electromagnetic wave detection module, of the propeller motor of the catching device. The anti-electromagnetic-interference anti-unmanned-aerial-vehicle catching device can catch an unmanned aerial vehicle accurately, thus the escape possibility of the target unmanned aerial vehicle is low, interference is smaller, and catching is more accurate.

The invention relates to rare-earth-silicate long-red-afterglow colored polypropylene fiber and a preparation method thereof. The fiber is characterized by being prepared from the following raw materials in percentage by weight: 89-96% of polypropylene spinning raw material, 3-10% of rare-earth magnesium silicate luminescent material, 0.6-1.0% of color master batch and a trace amount of functional assistants; and POY (Pre-Oriented Yarn) is prepared through proportionally mixing the raw materials, using a special spinning process and carrying out spinning winding by using a screw extruder, and DTY (Draw Textured Yarn) or FDY (Fully Drawn Yarn) can be prepared from the POY through draw texturing or drawing. The polypropylene fiber prepared by the method disclosed by the invention has the advantages that various colors are shown without dyeing, red afterglow with the wavelength of 600-750 nm can be emitted after the polypropylene fiber is irradiated by sunlight or fluorescent light for 1-10 min, the initial brightness of the afterglow is 2-3cd/m<2>, and the service life of the afterglow can reach 4-6 h; and the luminescent fiber is non-toxic and harmless and is free of any adverse effect on human bodies and environment.

The invention discloses a method for improving reliability of an SONOS flash memory instrument, comprising following steps: firstly, forming a tunneling oxide layer with a preset thickness and a silicon nitride layer for storing charges on a silicon substrate; then inletting ND3 gas or D2 gas to carrying out a high temperature annealing process to the oxide layer and the silicon nitride layer, causing the silicon-hydrogen bonds in the oxide layer to be replaced by silicon-deuterium bonds; finally forming a barrier oxide layer. According to the method of the invention, the high temperature annealing process is carried out to the oxide layer and the silicon nitride layer; the silicon-hydrogen bonds in the silicon nitride generate fracture; meanwhile, the ND3 gas or D2 gas is inlet; finally the active silicon-hydrogen bonds are replaced by the silicon-deuterium bonds; because the silicon-deuterium bonds are stable, when carrying out a high temperature reliability test, the escaping probability of the electrons is greatly reduced; the reliability of the SONOS instrument is improved; and the method is simple in process, easy in integration and suitable in mass production.

The invention relates to a rare earth yttrium oxysulfide red long afterglow polyamide luminescent fiber and its manufacture method, the luminescent fiber is composed of 90-96wt% of polyamide spinning raw material, 3-10wt% of rare earth yttrium oxysulfide luminescent material and less than 1wt% of nano-function auxiliary agent. The preparation method comprises the following steps: mixing luminescent master batch prepared by the above raw materials and polyamide slices in proportion, after drying for a certain time and a certain temperature, using a screw extruder for spinning and reeling through a special spinning technology to prepare POY filament, and texturing the POY filament to prepare DTY filament or preparing the FDY filament through drafting. The polyarmide fiber prepared by the method can emit the red afterglow with wavelength of 600-750nm after irradiation under daylight or fluorescence, the afterglow initial brightness is 2-3cd/m<2>, the afterglow life can reach 4-6 hours, the luminescent fiber is innocuous and unpoisonous, and has no adverse influence on human body and environment.

The invention relates to a beast catching cage with a prompting function. The beast catching cage comprises a beast catching cage body, a first cage door, a second cage door, a switch, a power source and an alarm, and is characterized in that the first cage door is arranged at an opening of the beast catching cage body, the second cage door is arranged at a certain position of the beast catching cage body, the certain position of the beast catching cage body is close to the first cage door and is separated from the first cage door by a distance of 20cm, both the first cage door and the second cage door are higher than the beast catching cage body, the power source and the high-power alarm are arranged in the beast catching cage body, the switch is arranged at the bottom of the first cage door, the power source is connected with the alarm and the switch by wires, the first cage door and the second cage door are supported by flexible sticks, and wild boars can sequentially knock down the sticks for supporting the first cage door and the second cage door when the wild boars enter the beast catching cage body, so that the first cage door and the second cage door can be simultaneously closed, the switch at the bottom of the first cage door can be in contact with the ground when the first cage door is closed, and loud alarm sound can be generated by the alarm. The beast catching cage has the advantages of simple structure and easiness in manufacture.

The invention belongs to the technical field of fish capturing, and discloses a portable and simple fish capturing fishing gear and an installing method. A connecting clamping part and a connecting clamping groove are formed in the top and the bottom of a round rod respectively, two identical connecting plates are symmetrically installed on the outer wall of the round rod, plastic cylinder bodiesare inserted to the outer walls of the connecting plates through T-shaped grooves, inlets are formed in the tops of the plastic cylinder bodies, fishing net fixing plates are installed at all the peripheries of the outer walls of the bottoms of the plastic cylinder bodies, buffering groove bodies with slopes are installed at the bottoms of the plastic cylinder bodies, net inlet channels are installed at the bottoms of the buffering groove bodies, inverse thread opening ropes are arranged at outlets of the bottoms of both net inlet channels, fishing nets are arranged at the bottoms of the plastic cylinder bodies through through holes in the fishing net fixing plates, and the buffering groove bodies, the net inlet channels and the inverse thread opening ropes are all located in inner cavities of the fishing nets. The portable and simple fish capturing fishing gear is simple in structure and convenient to detach and install, all parts can be detached to be put in a package box, and the fishing gear is very convenient to carry.