313results about How to "Improve combat effectiveness" patented technology

The invention mainly provides a major accident mobile monitoring and commanding platform system, which comprises an individual soldier system, a mobile command post and a rear command center. The individual soldier system, the mobile command post and the rear command center are connected and carry out data transmission by a communication network. The system can be used as an emergency rescue supreme command site of the rear command center accredited field, has capacities of rapid maneuvering, wide communication, positioning and commanding, and can carry out real-time on-site information acquisition, can provide real-time decision information of images, diagrams, data, voice, fax and the like for the rear command center to make commanding dispatch and assistant decision-making have responsiveness, deployability, sensitivity and versatility.

The invention relates to a fireman individual-soldier system on the basis of a wireless Mesh network framework. The system consists of a wireless monitoring mainframe, a plurality of wireless individual-soldier sub-machines and a plurality of wireless repeaters, wherein the wireless monitoring mainframe consists of a monitoring module and a wireless center node module; and each wireless individual-soldier sub-machine consists of a central processing unit module, a positioning module, a vital sign detection module, a distress call module, an environment condition detection module, a carried equipment detection module and a wireless terminal node module. When the fireman individual-soldier system is applied particularly, firemen wear the wireless individual-soldier sub-machines to enter a fire site or other accident sites and a chief officer monitors information such as postures, motion tracks, vital signs, environment conditions, carried equipment conditions and the like through the wireless monitoring mainframe, so that the intelligence support of a command decision is provided for the chief officer in time and a scientific basis can also be provided for daily tactical training. By the fireman individual-soldier system, the modernization, automation and intellectualization levels of a fire command are improved and the battle damage rate of the firemen can also be effectively reduced.

The invention discloses a crew maritime intra-cabin positioning, vital sign monitoring and searching-rescuing method based on a crew maritime intra-cabin positioning, vital sign monitoring and searching-rescuing system. The system comprises a command center server, an electronic fence transmitter, a crew vital sign real-time monitor, a crew real-time positioner, a shipboard personnel positioning processor and an overboard personnel positioner. According to the method, the vital sign real-time monitor for a single crew member, the shipboard and overboard personnel real-time positioners as well as wounded personnel vital sign and positioning data transmission are researched on the basis of such modern information technologies as AIS (automatic identification system), UWB (ultra-wide band), compass navigation positioning and the like, so that the automation of maritime wounded personnel vital sign monitoring, the electronization of information storage, the networking of information transmission and the visualization wounded personnel rescuing are achieved.

The invention discloses multi-shaft synchronous tightening equipment for wheel bolts. The multi-shaft synchronous tightening equipment for the wheel bolts comprises a speed reducing mechanism, a reciprocating rotating mechanism and a tightening mechanism, wherein the input end of the speed reducing mechanism is connected with a motor or a shaking handle; the reciprocating rotating mechanism is connected with the output end of the speed reducing mechanism; and the tightening mechanism is connected with the output end of the reciprocating rotating mechanism. The multi-shaft synchronous tightening equipment is characterized in that the tightening mechanism comprises a chute disc, a peripheral adjusting sliding block, a detachable disc, a top cover, a tightening connecting rod, a tightening crank, a ratchet mechanism and bolt sleeves, wherein the peripheral adjusting sliding block is arranged on the chute disc; a hinged shaft is arranged on the surface of the detachable disc; the top cover covers the chute disc; one end of the tightening connecting rod is sleeved on the hinged shaft; the tightening crank is hinged to the tightening connecting rod; the ratchet mechanism is arranged on the upper surface of the tail end of the tightening crank; the bolt sleeves are arranged on the ratchet mechanism; the chute disc is sleeved on the periphery of the detachable disc; the radial adjusting sliding block and the tightening connecting rod are hinged to each other at a position corresponding to the circle center of the bolt sleeves; a plurality of rectangular holes which are uniformly distributed in the peripheral direction and correspond to radial chutes are formed in the surface of the top cover; and the sleeves arranged on the ratchet mechanism extend out from the rectangular holes.

The production process includes trial weaving antistatic grey cloth, dipping fireproof liquid, roasting, soaping, deodorizing, waterproof and anti-fouling finishing, framing and inspection. The antistatic method is to add organic conducting fiber or conducting metal fiber; the dipping fireproof liquid is to finish the natural fiber fabric with fireproof agent and crosslinking agent; and the waterproof and anti-fouling finishing adopts fluoric compound as waterproof and anti-fouling agent. The natural fiber fabric may contain small amount of chemical fiber and has the functions of resisting static electricity, resisting flame, resisting water and resisting oil stain.

The invention relates to a police motorcycle real time orientation scheduling and managing terminal device which belongs to a transmission terminal system and comprises a central controller module, a GPS positioning module, a WiMAX wireless communication module, an identification recognition module, a voice-video frequency module, a warning module, a liquid crystal display module, a storage module, a power supply module, etc. The central controller module is connected with the other modules. The power supply module is connected in the device to provide the device with direct current. The whole device is fixed in a casing and is installed on a police motorcycle. The device has small size and flexibility, can pass crowded road, bystreet and alleyway fast to arrive at the accident site and also integrates various functions as a whole, such as field voice and picture recording to obtain evidence, comprehensive information inquiry, police officer remote attendance management and the like, and the device can be widely applied to all police categories including traffic police, patrol police, criminal police, community police, public security police, fire fighting police and the like and improves the combat ability of police organization of fast reaction, cooperative combat, at-terrorism and emergency and fighting against crime.

The invention discloses an aircraft layout of tilt rotors / a lift fan during high-speed long endurance. The coaxial propeller reversing duct lift fan is mounted at the front part of an aircraft body; the tilt rotors are mounted at the horizontal tail end part of the rear part of the aircraft body in a bilaterally symmetric way; and in the axial direction, the tilt rotors are provided with rotational degrees of freedom within a plane perpendicular to a horizontal tail. The lift fan and the tilt rotors are provided with power by an engine in an aircraft to realize coaxial propeller reversing rotation of the lift fan and tilting of the tilt rotors within a range of 0-(+90) degrees. According to the aircraft layout of the tilt rotors / the lift fan during high-speed long endurance, the duration performance of the aircraft in a fixed wing mode can be effectively improved and the complexity of a control system can be reduced.

The invention discloses a method for achieving multi-type unmanned aerial vehicle cooperative task assignment under resource constraints. The method includes the steps that first, environmental information is initialized, and an initial probability matrix is established according to an environmental model; next, a certain number of random samples are generated according to the initial probability matrix, and invalid samples are deleted according to the constraints; then, objective function values of valid samples are worked out according to an objective function; then, the objective function values of the samples are sequenced from large to small, and a certain proportion of samples sequenced in the front are taken for updating the probability matrix. Thus, the specific solution algorithm for achieving multi-type unmanned aerial vehicle cooperative task assignment under the resource constraints based on a cross entropy method is given. By means of the method, multi-type unmanned aerial vehicle task assignment can be better achieved under resource constraints, and unmanned aerial vehicles or unmanned aerial vehicle sets can complete tasks with higher gains. The method is applied to achieving multi-type unmanned aerial vehicle cooperative task assignment under resource constraints.

The invention discloses a double-surface filling composite film containing fluorine and chlorine conductive macromolecules and a preparation method thereof. The double-surface filling composite film containing the fluorine and chlorine conductive macromolecules comprises a micropore film framework and fluorine and chlorine containing conductive macromolecules, more than 60% of double surfaces of the micropore film framework are filled with fluorine and chlorine containing conductive macromolecule resin, the mechanical strength is high, the waterproofness, the oil resistance and the pollution resistance are relatively high, and the film can meet the requirements of higher water resistance and poisonous and harmful chemical invasion resistance and higher moisture-penetrability; the film has convenience and high water and poisonous and harmful chemical resistance, is comfortable, keeps warm and can improve the fighting capacity of soldiers greatly when applied to biochemical protective clothing; when the film is applied to fuel cells, the electric conductivity is high so that better electrical performance is obtained, and the fuels such as hydrogen or ethyl alcohol can be burnt and utilized relatively thoroughly.

The invention discloses a fatigue monitoring and early warning system and a fatigue monitoring and early warning method based on a digital helmet, wherein the method comprises the following steps: acquiring electroencephalograph (EEG) signals of a user by virtue of an EEG collector which is integrated on the digital helmet, and analyzing a mental fatigue coefficient of the user according to the rhythmic change of the EEG signals; shooting an ocular image of the user by virtue of a camera which is integrated on the digital helmet, and analyzing a physiological fatigue coefficient of the user according to the ocular image; calculating the fatigue degree of the user according to the mental fatigue coefficient and the physiological fatigue coefficient of the user; and generating an alarm information including the fatigue degree of the user when the fatigue degree of the user exceeds a preset value of the user under normal circumstances, and transmitting the alarm information to a monitoring central platform by virtue of a communication network so as to early warning the fatigue status of the user. The system and the method disclosed by the invention, applied to digital battlefields, can be used for monitoring fatigue statuses of soldiers in real time during combat readiness or task execution of an army, and can be used for early warning soldiers in mental fatigue or physiological fatigue.

The invention discloses a global position system (GPS) deception jamming method and a GPS deception jamming system. The GPS deception jamming system comprises a GPS signal digital generating module and a radio frequency emitting part. A GPS deception jamming signal generating part is mainly composed of a field programmable gata array(FPGA) digital platform and used for generating a digital GPS jamming signal. The radio frequency emitting part includes a plurality of transducers, wherein the traducers are used for changing the digital GPS jamming signal to a nominal frequency of the GPS satellite signal and a plurality of frequencies up and down the nominal frequency of the GPS satellite signal, and emitting the radio frequency signal through an antenna; possibility of receiving signals by the GPS receiver is largely increased, the deception jamming can be realized for the GPS receiver with certain airspace. Compared with the traditional GPS jamming system, the emitting power of the jamming system is much smaller, and own safety can be guaranteed. Furthermore, the goal GPS receiver is positioned to a wrong position, and thus, the GPS losses a fighting effect.

A direction-finding device is used to transmit radio signal uninterruptedly in the control device of a receiving center, and comprises a first radio frequency receiving unit and a second radio frequency receiving unit which are symmetrical, a first antenna and a second antenna respectively connected with the first radio frequency receiving unit and the second radio frequency receiving unit, a frequency synthesizer, a local oscillation circuit, a baseband signal processing unit and a control unit, wherein, the signal, which is received by the first antenna and the second antenna and is processed by the first radio frequency receiving unit and the second radio frequency receiving unit, is provided to the frequency synthesizer, the local oscillation circuit and the baseband signal processing unit; the processed signal is provided to the control unit; finally, the control unit, according to the field intensity signal of the first radio frequency receiving unit and the second radio frequency receiving unit, calculates the direction angle between the control device of the center and the direction-finding device. The invention can realize remote positioning and orientation measurement in the absence of a satellite positioning system along with high measurement precision and strong diffraction capability. Moreover, the invention also provides a direction-finding method.

The invention discloses a multi-functional individual general back apparel, which comprises a general gun sling, a tactical vest and subsystems. The tactical vest is composed of a left front piece, a right front piece, a shoulder pad and a waist belt. The left front piece, the right front piece and the shoulder pad are combined together through the respective connecting belt and the waist belt. A group of fixation bands with joints are sewed on surfaces of the left front piece, the right front piece, the shoulder pad and the waist belt of the tactical vest, and inserting loops and fixation bands with joints are sewed on the rear faces of the subsystems for adapting to the joints of the fixation bands of the tactical vest, and the subsystems and sockets of the fixation bands are connected on the tactical vest through the inserting loops by means of interleaving, weaving and insertion. Each subsystem of the invention is mobile and flexible and can be assembled and disassembled quickly as well as assembled at will in need of wartime. Each subsystem can be replaced in time and conveniently if damaged, thereby extremely improving the replacement performance of products. The tactical vest of the multi-functional individual general back apparel fits different statures of soldiers and meets the requirements of different seasons, thereby improving the battle effectiveness.

The invention discloses a water surface / underwater dual-mode vehicle comprising a vehicle body, a water jet propulsion system is arranged at the tail in the vehicle body, the tail of the vehicle bodyis connected with two vertical fin rudders opposite in position in the vertical direction, the tail of the vehicle body is connected with two horizontal fin rudders opposite in position in the horizontal direction, control mechanisms are arranged in the vertical fin rudders and the horizontal fin rudders, and the front portion of the vehicle body is further connected with a hydrofoil structure. Rapid distribution can be realized, and the throwing capacity facing a severe environment is enhanced. The water skiing sailing resistance of the vehicle is obviously smaller than that of underwater sailing, the combat radius of the vehicle can be increased, and the combat effectiveness is enhanced. The hydrofoil structure directly surrounds the vehicle body through the fragment-free explosive bolts, when the tail end of the vehicle attacks, the hydrofoil structure is separated and discarded through the control bolts to achieve underwater high-speed navigation, underwater defense blind areas ofenemies are fully utilized, and effective killing of surface ships of the enemies is achieved. When the vehicle slides on the water surface, the two ends of the main hydrofoil warp upwards, and good stability is achieved.

The invention provides a multipurpose anti-attack submarine depot boat. The multipurpose anti-attack airplane carrier consists of an overwater boat body, underwater boat bodies and a submarine, wherein a flight deck is arranged at the top of the overwater boat body; the underwater boat bodies are vertically arranged at the bottom of the overwater boat body; the underwater boat bodies are arranged in pair at least; sealed skylights are arranged at the bottom of the overwater boat body positioned on the two sides of the underwater boat bodies; the submarine is berthed below the sealed skylights; lifters are arranged on the two sides of the sealed skylights; steel cables of the lifters are connected with the submarine and are positioned over the sealed skylights; a guided missile lifting crane is arranged at the bottom of the flight deck; a carrier aircraft catapult is arranged on the flight deck; antiaircraft weapon cabins are arranged on the two sides of the overwater boat body; a torpedo-protection net is arranged below the antiaircraft weapon cabins and is lifted through the lifter; a ballast compartment is arranged at the bottoms of the underwater boat bodies; a power cabin is arranged above the ballast compartment; the lifting of the submarine depot boat is controlled through the load of the ballast compartment; and a warship island is arranged in the middle of the flight deck.

The invention relates to an undercarriage strut shrinking mechanism. The undercarriage strut shrinking mechanism comprises a shrinking actuator cylinder, an oil liquid compensator and an undercarriage; the shrinking actuator cylinder provides the oil liquid required by the undercarriage for shrinkage, the oil liquid compensator provides the oil liquid supplementary when the undercarriage 1 is in landing impact on the ground; the shrinking actuator cylinder, the oil liquid compensator and the undercarriage are communicated through a hydraulic pipe, wherein the hydraulic pipe is a tee conduit respectively connected with an oil nozzle, a compensation oil inlet nozzle and a shrinking cavity. Compared with the existing undercarriage, the strut length is shortened after the undercarriage disclosed by the invention is folded, the occupied undercarriage compartment space is small, the tolerance of an equipment compartment and a missile compartment of the airplane can be effectively improved, and the fighting capacity of the airplane is improved. Compared with the prior art, the undercarriage shrinking mechanism is provided with an automatic shrinking locking structure, the undercarriage can be reliably locked at the shrinking location under the hydraulic is invalid, the automatic elongation is avoided, the undercarriage and airplane structure cannot be damaged. The undercarriage strutshrinking mechanism disclosed by the invention is simple in structure, less in occupancy of the shrinking mechanism, and light in weight.

The invention discloses an unmanned aerial vehicle three-dimensional environment modeling method based on a vision-assisted laser radar. The method comprises the following steps: calibrating a binocular camera based on a Zhang Zhengyou calibration method; then, adopting an external parameter calibration method on the camera / laser radar based on a 3D marker method; and finally, using the binocularvision odometer as high-frequency assistance of the laser radar odometer, providing off-site point rejection and a relative pose initial value for the laser radar odometer so that the laser radar odometer operates at a low frequency, and movement is further optimized by utilizing the relative pose initial value provided by the binocular vision odometer. According to the invention, high-precision modeling of the flight environment of the unmanned aerial vehicle is realized, a foundation is laid for autonomous obstacle avoidance of the unmanned aerial vehicle, safe flight of the unmanned aerialvehicle is ensured, a reliable channel is provided for acquisition of intelligence and resource information, and the combat effectiveness is improved.

Provided is a method for assigning collective fire of combined teams. The method comprises a step 1 of enabling a weapon-identifying sensor to acquire required data information; a step 2 of establishing an upper objective function with the intention that enemy targets have the smallest overall threat to a home side; a step 3 of establishing a lower objective function with the intention that the enemy targets have the lowest battlefield survival value; a step 4 of performing cross iteration on the upper objective function and the lower objective function by using a double artificial bee colony algorithm in order to obtain an optimal solution of collective fire distribution; and a step 5 of assigning the enemy targets to each weapon platform of the home side according to the optimal solution in order to achieve fire attack. A collective fire assigning scheme acquired through the double artificial bee colony algorithm achieves effective cooperation between a main attack force and a secondary attack force so as to increase an overall fire attack effect, reduce the overall threat of enemy targets to home side, and increase the overall battle effect of the home side.

The invention discloses an aircraft carrier rocket assist catapult which is mainly composed of a catapult track, a booster rocket and a canister launcher. The catapult track is arranged on a hangar foreground of a shipboard aircraft. The shipboard aircraft catapults directly on the catapult track. The rear side of the catapult track and a hangar floor are located in the same plane and connected through a pin shaft, a catapult track groove is formed in the middle, the rocket canister launcher is arranged on the lower side, and an upper opening of the canister launcher is tightly attached to the track groove. A sliding block tractor is arranged in the groove. A tractor hanging machine pull rod part is arranged on the upper portion of the catapult track, and a rocket hanging device is arranged on the portion, stretching into the canister launcher, of the lower portion of the catapult track. A backflow discharge flue and the canister launcher are arranged side by side. The booster rocket can be repeatedly used. After a first airplane is ignited and launched, the canister launcher is blown, then an appropriate amount of liquid propellant is injected into the booster rocket, and ignition is carried for launching again. The front and back slope of the catapult track can be adjusted through a hydraulic lifting device, and the sliding block tractor and the canister launcher automatically return under the effect of a spring and the track slope.

The invention discloses a fluorine-containing and chlorine-containing conductive macromolecule single-side-filled composite film and a preparation method thereof. The fluorine-containing and chlorine-containing conductive macromolecule single-side-filled composite film material comprises a micropore film framework and fluorine-containing and chlorine-containing conductive macromolecules, wherein more than 85 percent of pores of a single side of the micropore film framework are filled with fluorine-containing and chlorine-containing conductive macromolecule resin; the physical mechanical strength is high; the waterproof, oil-proof and anti-pollution performance is high; the film can meet the requirements of resisting water and preventing toxic and hazardous chemicals from invading; the performance is high; the moisture permeability is higher; when the composite film is applied to biochemistry protection clothing, the effects of light weight, portability, high protection performance on the water and the toxic and hazardous chemicals, comfort and heat insulation are achieved, and the fighting capacity of soldiers can be greatly improved; when the composite film is applied to fuel cells, the electric conductivity is high, so that the obtained electric performance is good, and fuels such as hydrogen gas or alcohols can be completely burnt and utilized.

The invention discloses a tilting three-rotor wing long-endurance composite aircraft which comprises a three-rotor wing system, an aircraft body, wings with the high aspect ratio and connecting and tilting table supports.The three-rotor wing system is composed of three engines, two of the engines are located in front of the wings, wherein the rotating speed of the engines is same, and the rotating directions of the engines are opposite; another engine is located behind the wings, wherein the reverse torsional moment is eliminated in a vector power mode.The aircraft can vertically take off and land by taking the three-rotor wing system as power; after the aircraft takes off, three rotor wings are integrally tilted and locked through the connecting and tilting table supports, and the aircraft is in a level flight mode.The three-rotor wing power system and the wings with the high aspect ratio can be designed in a decoupling mode through the tiltable table supports, therefore, the aircraft has the capacities of vertically taking off and landing and high-speed long-endurance level flight, and the advantages of being stable, reliable , safe and the like are achieved.The aircraft can be deployed on a small ship with a vertical taking-off and landing platform and also can be deployed on an island with the small area, and no specially-built airport is needed.

The invention discloses an iron-based composite structure high-temperature anti-corrosion and anti-skid coating and a preparation method thereof. The coating comprises a SAM2X5 amorphous alloy anti-corrosion bottom layer (2) and an iron-based amorphous alloy / ceramic anti-skid top layer (1). The iron-based amorphous alloy / ceramic anti-skid top layer (1) is composed of alloy powder and ceramic powder. The alloy powder is prepared from, by mass percent, 31wt% of iron, 28wt% of chromium, 12wt% of boron, 11wt% of cobalt, 10wt% of nickel and 8wt% of silicon. The mass of the ceramic powder is 10%-70%of the total mass of the iron-based amorphous alloy / ceramic anti-skid top layer (1). The coating is high in friction coefficient, coating bonding strength and corrosion resistance.

The invention relates to an autonomous unmanned plane in-out control method, belongs to the unmanned plane control technology field and is applied to four-point type landing gear layout unmanned planes. The control method comprises steps that the unmanned plane ground sliding track is established; a side bias instruction acting on an operating effector is acquired by the control law through resolution according to the ground sliding track; the unmanned plane is controlled by the operating effector according to the side bias instruction for tracking the sliding track and carrying out autonomousflight. The method is advantaged in that through utilizing precise autonomous in / out track tracking control of the four-point type landing gear layout unmanned planes, the staying time of the unmanned plane on a runway can be shortened, the runway utilization rate and an autonomous grade of the unmanned plane are improved, use of the unmanned plane by the army is facilitated, and combat efficacyis improved.

The invention relates to the technical field of aircraft design and especially relates to an aircraft effectiveness sensitivity analysis method. The aircraft effectiveness sensitivity analysis method comprises following steps: 1. establishing a preset operational effectiveness requirement set of different air combat superiorities; 2. establishing a combat tactics set corresponding to the different requirements in the preset operational effectiveness requirement set; 3. performing large sample optimization on aircraft tactical index values to obtain an optimized interval of the aircraft tactical index values; step 3 comprises following steps: 3.1 setting an initial aircraft tactical index value as simulation input; 3.2 using the combat tactics set as a simulation scheme to carry out simulation experiment; 3.3 using the preset operational effectiveness requirement set as the evaluation criteria of simulation results. By means of the tactical index effectiveness sensitivity analysis method of the invention, aircraft optimized design is guided and combat effectiveness is increased, the related cost of development stages is reduced and technical risk is reduced.

The invention discloses a pump water spray propulsion double-hydrofoil shallow diving carrier, which is technically characterized by absorbing the superiorities of a submarine, a carrier, a modern small water plane catamaran with superhigh speed and a hovercraft, and by using 'a multilevel double-circular-arc-gear high pressure pump with large flow rate', 'a multilevel internal series double supercharged and double-circular-arc-gear pump' as a water spraying pump and an air-cushion pump of a ship and by adopting the structure of a shallow diving carrier which uses a multi-functional double hydrofoils submerged body to provide buoyancy and dynamic forces. The ship body carries power and pump spraying water, which transports the high pressure and large flow rate water to a direction-adjustable spray head which is positioned on the tail part of the multi-functional double hydrofoils submerged body under the ship body, so as to achieve the water spray propulsion. Besides providing the buoyancy and dynamic forces, the double hydrofoils submerged body also has the functions of oil storage, inputting water in a respective cavity and controlling the shallow diving and the ship attitude, and is also provided with overall strength, thus forming a small water plane catamaran structure; the double hydrofoils submerged body is also provided with an air-cushion. When the submerged body uses the pump to exhaust water, the ship body surfaces, and likes a small water plane catamaran, the spray head can spray water and is promoted in water when avoiding the water resistance to go forward at high speed; the carrier is a propeller-typed ship and can not realize a sea skimming flight, which is the most superiority in the water spray propulsion.

The invention provides a nylon 56 flame-retardant infrared-resistant camouflage ribbon relates to the technical field of camouflage ribbon production; a production technique of the nylon 56 flame-retardant infrared-resistant camouflage ribbon comprises rinsing, deoiling, dyeing with ground color, printing, post-treating, carrying out flame-retardant treatment and other steps, wherein the flame-retardant treatment includes soaking a ribbon in a flame-retardant liquid for 45 minutes for the first time before rolling the ribbon for the first time, transferring the ribbon subjected to first rolling to the flame-retardant liquid again for second soaking for 15 minutes, then rolling for the second time, and pre-baking the double-dipped and double-rolled ribbon at 100 DEG C for 3 min, and at 130DEG C for 5 min. The nylon 56 flame-retardant infrared-resistant camouflage ribbon has the advantages that the preparation steps are short, the prepared nylon 56 flame-retardant anti-infrared camouflage ribbon is good in color phase consistency, stable in infrared reflectivity and low in cost, especially when an organic nitrogen flame retardant and a phosphorus flame retardant are used together, the synergistic effect can be achieved, and the flame retardant property of the camouflage ribbon is better.

The invention discloses a novel aircraft carrier flying-off deck, which comprises an ascending flying-off desk section, wherein a carrier plane flying-off acceleration equipment cabin is arranged below a starting section, a brake is arranged outside two tank wheels which are installed on a support through a wheel shaft inside the cabin, the two tank wheels are connected, a rubber plate is hung on the inner surface of a reinforced crawler belt, and the crawler belt is provided with a special crawler belt plate with a towing hook. Two tank engines with an independent oil box and an independent water box respectively are arranged on an engine support at the side of each tank wheel, the tank engines are connected with the tank wheels through a clutch and a transmission case, and a crawler belt tension wheel installation support is provided with a crawler belt tension wheel with a crawler belt traction motor. The starting section of the ascending flying-off deck is provided with a deck narrow seam, and a telescopic automatic switch, a brake releasing switch and a brake anchoring rod are respectively arranged on the middle-rear section and nearby the end of the deck narrow seam and on flying-off station deck on the rear part. The novel aircraft carrier flying-off deck integrates the advantages of a flat ejection flying-off deck and an ascending flying-off deck, and is also free from the defects of the two flying-off decks.

An electromagnetic wave absorbing nano-class composite rubber is prepared from natural or synthetic rubber, cross-linking agent, anti-ageing agent, reinforcing filler, plasticizer, beta-silicon carbide nanoparticles, Ni nanoparticles and polyphenylamine through proportionally mixing rubber with additives, preparing mother nanoparticles from beta-silicon carbide nanoparticles, Ni nanoparticles, and polyphenylamine, mixing them together, pugging, rolling or extruding, die pressing, and sulfurizing.

The invention provides a method for developing the South China Sea based on a multi-purpose South China Sea travel and vacation training aircraft carrier which structurally comprises a ship body, a submarine and building block type vacation hotels, wherein the bottom of the ship body is designed to be flat; the upper surface of the ship body is provided with a flying deck; the middle of the flying deck is provided with carrier-based aircraft ejector; and the two sides of the flying deck are provided with the detachable building block type vacation hotels; living service facilities, armament equipment maintenance facilities, power facilities, storehouses and infrastructure equipment are arranged in the ship body; the bottom of the ship body is provided with electric thrusters; a submarine access channel is arranged between the electric thrusters; a docking berth is arranged in the middle of the channel; navigation marking lamps are arranged at the bottoms of the channel and the docking berth; the submarine docks below the berth; and air sacs or buffer rubber mats are arranged at the bottoms of the submarine berth and a berth access channel. According to the invention, collision with aircraft carrier resulting from excessively fast emergence of the submarine is avoided; and an upper bridge is arranged at the middle of the upper part of the flying deck.

The invention discloses a military life vest. The military life vest comprises a life vest body, a bundle belt and an echoing and rescuing device, the life vest body is formed by overlapping and connecting a liner filling type life vest main body and an air bag type life vest main body, and the two overlapped life vest main bodies are each arranged to be an open front vest style. The two overlapped life vest main bodies are connected through corresponding 'four-joint' buttons, the liner filling type life vest main body is composed of two open front pieces I and a whole back piece I, and the air bag type life vest main body is composed of two open front pieces II, a whole back piece II, an automatic inflating device and a manual self-assisting inflating device. A liner core material of the liner filling type life vest main body is a NBR floating material, a jockstrap belt is arranged between the front portions and the rear portions the lower ends of the open front piece and the back piece on the liner filling type life vest main body, and the bundle belt is arranged at the waist and can also serve as a sling. The air bag type life vest main body is composed of an air bag body, a stab-resistant layer, an electric wave reflecting layer and a protective fabric layer, whether the air bag body is inflated or not is selected according to the requirement, and light-reflecting signs and marks and an illuminating assembly capable of emitting variable light are arranged on the life vest body.