55results about How to "Solve casualties" patented technology

The invention relates to a fire-fighting device, in particular to an electric-power-free fire-fighting device. The electric-power-free fire-fighting device comprises a sweeping board tank, a fire extinguishment tank, a water band disc base seat, a water tank, a water inlet tank, a hand-held fire extinguishment tank and moving devices. By means of the electric-power-free fire-fighting device, the problems that according to most existing fire fighting truck devices, water is sprayed out of water monitors with electric power supply, under the circumstance that when electric power is insufficientor unavailable, fire extinguishment for saving life and property cannot be conducted through the water monitors, so that more economic losses and casualties can be caused, a fire scene is generally complex in landform, and a fire-fighting rescue truck is overlarge in full load weight, possibly rolls over when being driven in the scene with the uneven landform and cannot reach the nearest fire fighting position can be solved. The upper end of the sweeping board tank is provided with a sweeping board tank slide way, a sweeping board tank motor base, a sweeping board tank motor and a sweeping board tank lead screw, and the sweeping board tank slide way is arranged inside the sweeping board tank.

The invention relates to a method for preventing the misinformation of the signals of a switch device of a transformer substation in a power dispatching system, and the method solves the technical problems in the prior art that the switch device in the transformer substation always misinforms or omits in informing so that serious accidents occur, and unnecessary casualties or economic losses are caused; the following technical scheme is adopted: the method is realized based on that a monitoring circuit on a transformer substation end acquires the switch state signals of the switch device and uploads the switch state signals to a registered of a remote dispatch center to be stored; an image acquisition device for acquiring the state image information of the switch is added on the transformer substation end; and a controller with image identification management software, a special memory for storing video images and a middle memory are added in the remote dispatch center. Because the image acquisition equipment is added on the transformer substation end, the state images of the switch device are monitored in real time, detection results and the monitoring results of the monitoring circuit are compared, and the monitoring effect is enhanced.

The invention provides a vehicle-road cooperation test method and device based on an unmanned vehicle, and belongs to the technical field of artificial intelligence. The method specifically comprises the following steps: firstly, acquiring roadside information and vehicle-mounted information; secondly, storing the collected roadside information and vehicle-mounted information into a test scene database; then, exporting a test scene from the test scene database, creating a virtual simulation test environment, and starting a test; and finally, recording test data, evaluating the test scene and generating a test evaluation report. The invention solves the technical problems that in the prior art, the test cost is high, and the real vehicle motion state is difficult to restore in the test; and the construction cost is low, the test scene coverage rate is 100%, meanwhile, repeated testing can be achieved, the requirements of industry test regulations are met, and data support can be provided for follow-up improvement of a vehicle-road cooperation algorithm based on the unmanned trolley.

The invention relates to an elevator lifting floor safety hook ring. The elevator lifting floor safety hook ring comprises a lift car 1, a hook 2 and rings 3. The elevator lifting floor safety hook ring is characterized in that the hook 2 is arranged in the lift car 1; every ring 3 is arranged on a door frame of an inlet and outlet of every floor of elevator; the distance between the hook 2 and every ring 3 is equal to the ground height of every floor. According to the elevator lifting floor safety hook ring, the structure is simple, the production cost is low, and the function of the safety protection on the personnel is achieved and accordingly the condition that casualties are caused due to the fact that the elevator lift car is accidentally out of control to ascend and descend can be prevented.

The invention discloses a machine manufacturing drilling machine with a fixed base; bolt holes are fixedly formed in the four corners of the upper end face of the fixed base. The upper end face of thefixed base is fixedly connected with a supporting column. A workpiece fixing device is fixedly connected to the middle of the side end face of the supporting column. The workpiece fixing device comprises a movable fixing plate, a threaded hole, a limiting column, a connecting column, a threaded clamping groove, a threaded column, a fixed clamping groove, piston clamping grooves, a fixed main bodyand a movable groove; the movable groove is formed in the upper end surface of the fixed main body; the movable fixing plate is slidably connected to the interior of the movable groove through the connecting column; the threaded hole is formed in the upper end face of the movable fixing plate, the limiting column is slidably connected to the upper end face of the movable fixing plate, the fixed clamping groove is formed in the side, away from the movable groove, of the upper end face of the fixed main body, and the piston clamping grooves are formed in the two sides of the interior of the fixed clamping groove. The drilling machine can provide good fixing performance for the workpiece, and meanwhile the safety performance of the device is greatly improved.

The invention provides a slab continuous casting bleed-out early warning system, and relates to the technical field of microwave detection. The slab continuous casting bleed-out early warning system comprises a microwave detection device, a signal conversion device, a control device, a driving device and an alarm device, wherein the control device controls the driving device in a slab outlet roller way to rotate so as to enable a billet shell in a crystallizer to move relative to the microwave detection device; the microwave detection device is used for sensing the thicknesses of a plurality of positions of the billet shell in the crystallizer so as to correspondingly generate a plurality of microwave signals; the signal conversion device correspondingly generates a plurality of voltage signals according to the plurality of microwave signals; the control device controls the alarm device to send out an alarm signal when the amplitudes of all the voltage signals do not meet a preset condition. Therefore, the slab continuous casting bleed-out early warning system can solve the problem that the existing slab continuous casting bleed-out early warning system gives a false alarm or has alarm failure due to adoption of a thermocouple.

The invention relates to an escape device, and provides an escape device with an automatic damping function. The escape device comprises a steel wire rope, a fixed pulley block, a cylindrical shell, a piston, an inflatable cushion and an automatic damping device. One end of the cylindrical shell is closed, a via hole is formed in the other end of the cylindrical shell, one end of the steel wire rope is connected with the inflatable cushion, and the other end of the steel wire rope is wound through the fixed pulley block, penetrates the via hole of the cylindrical shell and is connected with the piston in the cylindrical shell. The escape device with the automatic damping function has the advantages that the problem of personal casualties due to deficiency of automatic damping functions of certain existing escape devices can be solved; the escape device with the automatic damping function is convenient to use, the distance from the escape device to the ground can be detected, and the damping device can be automatically started when the escape device reaches a warning distance section, so that people can safely escape, and quick escape can be facilitated.

The invention discloses a fire extinguisher for security and protection. The fire extinguisher comprises a fire extinguisher barrel body, wherein a fire extinguisher pressing handle is arranged on one end of the fire extinguisher barrel body, a tray is arranged at the bottom of one side of the fire extinguisher barrel body, a fixed buckle is arranged above the tray, a nozzle is arranged in the fixed buckle, a pressure gage is arranged on one side, which is close to the nozzle, below the fire extinguisher pressing handle, a spray head is arranged on one side of the pressure gage, a fixed retaining ring is arranged on one end, which is far from one end of the pressure gage, of the nozzle, and a fixed groove is formed in one side, which is far from the nozzle, of the fire extinguisher barrel body. The detachable nozzle is designed, so that fires can be conveniently extinguished according to the sizes and distances of the fires, and the problem of property loss or casualties caused by fires because a traditional fire extinguisher cannot be preferably switched between the fires of different sizes and distances is solved; the fixed groove is designed, so that the fire extinguisher can be conveniently fixed or hung, and the problem that the traditional fire extinguisher cannot be independently fixed or hung is solved.

The invention relates to a high-temperature life protection system and method based on a pure electric automobile, wherein the system comprises a controller, a temperature sensor, a human body infrared sensor and an automobile air conditioner; the temperature sensor is arranged in the automobile and is electrically connected with the controller, and the temperature sensor is used for detecting thetemperature in the automobile; the human body infrared sensor is arranged in the automobile and is electrically connected with the controller, and the human body infrared sensor is used for detectingthe human body in the automobile; the automobile air conditioner is electrically connected with the controller and is used for cooling the inside of the automobile when a human body exists in the automobile and the temperature exceeds a preset value; the scheme can effectively solve the problem of heatstroke or casualties of the left infants caused by high temperature of the automobile; the system and the method are directly developed based on the existing pure electric automobile system, and have the advantages of small change, low cost and convenient realization.

The invention discloses a low-pressure single-phase alternating current leakage protector. The leakage protector comprises a power failure trip protecting mechanism, a resonant protection circuit capable of generating resonance immediately and generating instantaneous high impedance when an earth fault happens, a data acquisition processing circuit, and a main controller for controlling the power failure trip protecting mechanism according to a signal detected by the data acquisition processing circuit, which are connected in series in a power supply circuit; the resonant protection circuit is a double-resonance protection circuit consisting of two LC resonant circuits; the two LC resonant circuits comprise a first LC resonant circuit consisting of L1 and C1, and a second LC resonant circuit consisting of L2 and C2, and the L1 and the L2 are two mutual inductors; and the data acquisition processing circuit is connected in parallel at two ends of the capacitor C1 or the capacitor C2. The low-pressure single-phase alternating current leakage protector has reasonable circuit design, high intelligent degree and good using effect, and can effectively solve the practical problems that the prior leakage protector has unreliable motions, is likely to cause personal casualty, influences load normal operations and the like.

The invention belongs to the field of building construction, and particularly relates to a fire-fighting water tank for high-altitude fire extinguishing in a construction site, which comprises a plurality of steel plates, a profile steel keel is mounted between two adjacent steel plates, the plurality of steel plates form a cubic water tank, steel wire ropes are fixedly connected to four corners of the top of the water tank, the tops of the four steel wire ropes are fixedly connected with a same hanging ring, a plurality of fire-fighting spray heads are annularly installed at the bottom of the periphery of the water tank at equal intervals, and glass balls are installed on the fire-fighting spray heads. According to the fire-fighting water tank for the high-altitude fire extinguishing in the construction site provided by the invention, the problems of huge economic loss, casualties and bad social influence which are possibly caused by fire spreading due to the fact that firefighters do not come to the site in time and fire extinguishers cannot get close to the fire after the fire occurs are effectively solved, the mode is economical and convenient, and the fire extinguishing water tank can be manufactured by utilizing existing materials in the construction site, the fire extinguishers can effectively master the fire-fighting water tank through simple training, and effective unification of enterprise benefits and social benefits is truly achieved.

The invention provides a method of application of a BIM-based intelligent dehumidification system in an underground power distribution room. A solenoid valve of a dehumidifier is controlled through apc machine, detection data of WSN are received through a BIM database for updating a BIM, the underground power distribution room can be automatically dehumidified through simulation surface binding of wireless humidity sensor nodes, and safe operating of the underground power distribution room is ensured. Targeted monitoring and processing of humidity of all distribution electroplating units arecarried out on the basement power distribution room through the BIM and a WSN system, operations are simple, costs are low, and the problem of equipment damage and casualties caused due to humidity ofthe basement power distribution room is solved.

The invention relates to a lifting safety cross rod of an elevator lift car. The lifting safety cross rod comprises the lift car 1 and the cross rod body 2. The lifting safety cross rod is characterized in that the cross rod body 2 is arranged in the lift car 1 and can move out of the lift car 1 to be located below a door frame of an inlet and outlet of every floor of elevator. According to the lifting safety cross rod of the elevator lift car, the structure is simple and the manufacturing cost is low; the condition that the elevator lift car is accidentally out of control to ascend and descend can be prevented; the problem of casualties due to the fact that the existing elevator lift car is accidentally out of control to ascend and descend is solved.

The invention discloses an electrode protection device of a battery, comprising an insulator sheathed on an electrode of the battery, and the insulator is used for completely packing the electrode of the battery to carry out insulation protection on the electrode of the battery. By applying the technical scheme, the insulator is sheathed on one electrode of the battery and completely packs the electrode of the battery to carry out insulation protection on the electrode of the battery. Because one electrode of the battery is insulated from outside, the short circuits of the anode and the cathode of the battery can not be caused so that casualties and property losses can not be caused, thereby solving the problems of casualties and property losses caused by the short circuits of the anode and the cathode of the battery.

A vehicle used in airport for the forced landing of airplane due to the failure of landing chassis is composed of a vehicle, a hydraulic jack system, load-bearing beam system, and an electronic system for ensuring the aligning of the vehicle with the airplane in order to land the airplane on the vehicle.

The invention discloses a heating blanket preventing damages due to excessive high temperature. The heating blanket comprises a temperature sensor, a controller, a power supply module, a power supplyswitch and a heating module, wherein the power supply module is connected with the heating module; the temperature sensor is arranged on the heating module; the temperature sensor is connected with the controller; the controller is connected with the heating module and the power supply switch; and the power supply switch is connected with the power supply module. The whole system of the heating blanket is powered by the power supply module; heating temperature of the heating module is detected by the temperature sensor; a detected temperature signal is transmitted to the controller; the controller processed after receiving the temperature signal; upon excessive low temperature, the controller controls the heating module to increase heating power; and upon excessive high temperature, the controller controls the power supply switch to shut off the power supply, so heating operation of the heating module can be stopped. Fire accidents and casualties caused when the heating blanket is damaged by excessive high temperature due to the absence of temperature control in the prior art can be prevented.

The invention relates to an elevator car lifting safety bracket. The elevator car lifting safety bracket provided by the invention comprises a car 1 and a bracket 2 and is characterized in that the bracket 2 is arranged in the car 1 and can be moved out of the car 1 to a part below a door frame at an elevator entrance / exit of each floor. The elevator car lifting safety bracket is simple in structure and low in production cost, has the function of protecting the safety of passengers and can prevent the problem that the accidental out-of-control rising and lowering of the elevator car causes casualties.

The invention discloses a novel steel structure wall with a fireproof function. The wall comprises a steel structure shell, wherein a temperature sensor is fixedly connected to the left side of the steel structure shell, a motor is fixedly connected to the bottom of the inner wall of the steel structure shell, a shaft I is fixedly connected to the top of an output shaft on the motor, a rotating disc is fixedly connected to the top of the shaft I, an arc-shaped rack is fixedly connected to the upper surface of the rotating disc, a shaft II is rotatably connected to the inner wall of the steel structure shell in a fixed-axis mode, two gears I are fixedly connected to the surface of the shaft II, teeth on the gears I are meshed with teeth on the arc-shaped rack, and the left end of the shaftII is fixedly connected with a disc-shaped shell I. According to the wall, through the cooperative use of the structures, the problems of accidents and even casualties caused by overall overturning ofa building due to plastic deformation and failure of a steel structure under the action of high temperature of a fire scene in the actual use process are solved.

The invention discloses a protective devicefor preventing fracture of a belt conveyor. The protective device includes a base, the upper end of the base is provided with a U-shaped bracket, the side wall of the U-shaped bracket is provided with a sliding groove, and both ends in the sliding groove are provided with sleeves correspondingly; and the sleeves are internally embedded with springs and sliders, sliding rods and connecting plates are arranged outside the sleeves, wherein one ends of the sliding rods are inserted into the sleeves and connected with the sliders, the other ends of the sliding rods are connected with the connecting plates, the side walls, penetrating through one face of a sliding groove, of one ends of the connecting plates extend out of the U-shaped bracket, and are connected with arranged top blocks, the side walls, penetrating through the other face of the sliding groove, of the other ends of the connecting plates extend out of the U-shaped bracket, and are connected with arranged fixing plates. The protection device for preventing the fracture of the belt conveyor alarms when a belt fractures, and has the functions of daily protection of the belt and emergency stop of the belt, and through cooperative use of the two, the protective effect on a conveyor belt 34 and an operator are achieved.

The invention provides a high-rise building with a novel elevator structure. The high-rise building comprises a building body structure. Elevator shafts and walking corridors are arranged in the building main body structure, each elevator shaft is of a U-shaped structure, the back face of each elevator shaft is an opening of the corresponding U-shaped structure, and an escape window is formed in the back face of each elevator shaft. An elevator car is arranged in the elevator shaft, an elevator car door is arranged on the front face of the elevator car, an elevator car escape exit is formed in the position, corresponding to the escape window, of the back face of the elevator car, and an elevator car sealing component is arranged on the elevator car escape exit and made of fragile materials. The elevator shaft is originally combined with the walking corridor, the escape window is arranged on the walking corridor, and the lift car escape exit is arranged on the lift car, so that passengers in the lift car can throw dangerous objects into the walking corridor when a fire danger occurs, the hazard grade is reduced, and the safety of the passengers in the lift car is guaranteed. In this way, the problem that in the prior art, passengers are very prone to casualties once fire danger happens to an elevator is thoroughly solved.

The invention relates to the technical field of single-person suspension, and discloses a single-person suspension flying pedal, which comprises a suspension aircraft. The single-person suspension flying pedal solves the problem that when a single-person suspension aircraft is used, the speed of the single-person suspension aircraft needs to be regulated and controlled, for instance, when a testerfalls to the ground, only by controlling revolving speed, can the tester be guaranteed to fall to the ground stably, otherwise, casualties are inevitably caused if the tester falls to the ground suddenly. According to the technical scheme, a revolving speed adjustment panel is connected on the obverse side of a wind wheel revolving speed control panel, wherein the function of the revolving speedadjustment panel lies in controlling the magnitude of electric quantity, when the electric quantity is low, a revolving control motor is influenced by a motor, the revolving speed becomes low, otherwise, when the electric quantity is high, the revolving speed becomes high, wherein the revolving speed adjustment panel is divided into three gears, and a rotational stand column positioned and connected at the top of the revolving control motor rotates automatically to drive a propeller blade to rotate.

A pneumatic lifting safety advertising board convenient to replace comprises a stand column, a main transmission cavity is formed in the stand column, a winch shaft extending forwards is rotatably arranged on the rear end wall of the main transmission cavity, a first bevel gear is fixedly arranged at the front end of the winch shaft, A winch wheel is fixedly arranged at the back side of the firstbevel gear on the winch shaft. The pneumatic lifting safety advertising board convenient to replace is simple in structure and convenient to use, resources can be effectively utilized through pneumatic wind power, resource waste is reduced, automatic lifting can be achieved according to the wind power, The problem of casualties caused by damage and collapse of the antiaircraft gun billboard due tostrong wind is effectively solved, the antiaircraft gun billboard can automatically recover after strong wind, the advertisement replacement height is reduced through manual control, advertisements can be replaced on the ground, the advertisement replacement difficulty is reduced, and the advertising board also has the advantages of attracting eyeballs, enhancing the advertising effect and the like.

The invention discloses an anti-collision buffer device of a traffic transportation protection facility, and relates to the technical field of traffic transportation, the anti-collision buffer devicecomprises a limiting pile, a buffer mechanism, an anti-collision protection plate and a protection mechanism, the bottom end surface of the limiting pile is vertically provided with an inserting column, and the buffer mechanism is movably arranged on the side wall of one side of the limiting pile; the anti-collision protection plate is arranged at one end of the buffer mechanism, and the protection mechanism is fixedly arranged at the middle section of one side of the anti-collision protection plate. According to the anti-collision buffering device for the traffic transportation protection facility, by dispersing impact force generated by collision, the using effect of the anti-collision device is improved, the impact force of an automobile can be well reduced, and the problems of seriouscasualties and traffic facility damage caused by collision of vehicles are effectively solved; and the impact force of vehicle collision is effectively reduced, so that the collision accident degree is effectively controlled.

The invention relates to elevator accessories, in particular to a safe supporting post groove device for lifting of an elevator car. The safe supporting post groove device for lifting of the elevator car, provided by the invention, comprises an elevator car body 1, a post 2 and grooves 3, and is characterized in that the post 2 is arranged in the elevator car body 1 in the way that the front end of the post 2 is right-angled; one groove 3 is formed in a doorframe at the entrance / exit of an elevator at each floor; the height from the post 2 to the ground of the elevator car body 1 is equal to the height from each groove 3 to the ground of the corresponding floor; the post 2 can extent into one groove 3 in the doorframe at the entrance / exit of the elevator at each floor from the elevator car body 1. The safe supporting post groove device is simple in structure and relatively low in production cost and has the function of guaranteeing the safety of passengers, and the problem of personal casualty caused when the elevator car is accidentally out of control in lifting is solved.

The invention relates to a large saw plate connecting machine. A transportation platform is fixedly arranged on a support; a lifting platform is arranged on one side of the transportation platform; the lifting platform is arranged below the transportation direction of the transportation platform; a first chain wheel set used for transporting wood is arranged on the transportation platform and comprises a plurality of chain wheels and inclined chains matched with the chain wheels; the inclined chain is arranged on the upper surface of the transportation platform; second chain wheel sets used for transporting wood are arranged on the two sides of the lifting platform; the length of each second chain wheel set is larger than that of the lifting platform; the part, larger than the lifting platform, of each second chain wheel set is arranged on the inner side of the transportation platform; grooves needed by lifting of the second chain wheel sets are formed in the transportation platform; and a cylinder for lifting the lifting platform is arranged at the lower end of the lifting platform. The inclined chains are arranged on the transportation platform; wood boards are transported by using the inclined chains; one motor is used for driving the multi-shaft synchronous inclined chains to operate; power consumption is reduced; one worker is saved; and the production efficiency is improved.

The invention discloses an anti-deformation fireproof door with good sealing performance, and relates to the technical field of fireproof facilities. The anti-deformation fireproof door comprises a door frame body, a fireproof outer frame and a top plate, wherein, the fireproof outer frame is rotatably connected to the inner connecting end of the door frame body through hinges, and the top plate is located at the top of the fireproof outer frame. According to the anti-deformation fireproof door with good sealing performance, structural design is reasonable, the compression resistance of the fireproof door is higher compared with a traditional product, the phenomenon that the fireproof door is bent and deformed due to external acting force is effectively prevented, gaps inside and outside the fireproof outer frame are effectively filled through matched use of sealing strips and honeycomb aluminum plates, circulation of smoke and hot air is effectively blocked, comfort of personnel in a house is guaranteed; and compared with the traditional product, the fireproof door can effectively extinguish surrounding fire sources in the first time, the problem that in the prior art, casualties are caused due to the fact that firefighters fail to rescue in time is solved, and the actual use safety of the fireproof door is greatly improved.

The invention discloses an air transportation carrier escape system. The air transportation carrier escape system comprises an air transportation tool main body, an escape carrier, an escape carrier emitting device and an air pressure revulsion reaction system; the escape carrier can be used as a seat system when disasters do not occur, when the air disasters occur and escape time is provided with, personnel enters the escape carrier, and the escape carrier is conveyed outside an air transportation tool through the escape carrier emitting device; when the air disasters occur and the escape time is not provided with, the air pressure revulsion reaction control system voluntarily and rapidly closes a cabin door of the escape carrier when inducting the rapid changing of air pressure in a transportation carrier cabin, and the escape carrier emits to the air accompanying the disassembly of the air transportation carrier. The air transportation carrier escape system has the advantages that the occurrence of nearly all air disaster death incidents is effectively avoided, and especially the air disaster personnel casualties caused by sudden disassembly without early warning in high-altitude flight of an aircraft can be solved.

The invention discloses a novel tackle which is mainly applied to the field of amusement equipment, in particular to a tackle for a slip rope. The two ends of a tackle circulation cable are connectedwith a circulation cable shaft and a protection plate respectively. A compression spring I is arranged between a locking block in the middle of the circulation cable shaft and the protection plate, abrake shaft is vertically connected with the protection plate, a compression spring II is arranged in the middle, and the lower end of the brake shaft is connected with a brake arm and a brake pad which is located below a bearing cable. The locking block is connected with a winder provided with a wound rescue rope and a screw rod. When the circulation cable is broken, the compression spring I pushes a roller on the locking block to enter a brake plate chute, and the compression spring II drives the brake pad to ascend and rub the bearing cable, so that the tackle decelerates and stops. A passenger pulls the rescue rope to rotate the screw rod on the winder to push a locking block roller to move upwards, the brake device moves downwards, the brake pad is separated from the bearing cable, and the tackle begins to move. When pulling of the rescue rope stops, the tackle slowly slides down to a next station. The problem that when a circulation cable is broken, the tackle slides down at a high speed, rushes to a station and causes casualties is solved.

The invention relates to an anti-slip TPR outsole and a preparation method thereof, comprising the following steps: Step 1, preparation of an anti-slip sheet: 5-15 parts of butadiene rubber, 8-15 parts of styrene-butadiene rubber, Put 8-15 parts of isoprene rubber, 8-15 parts of solution-polymerized styrene-butadiene rubber, 10-20 parts of nitrile rubber, and 2-6 parts of cold-resistant plasticizer into the internal mixer, and mix them evenly at a temperature of 105 degrees 15min; Step 2: Add 3-5 parts of carbon fiber, 10-15 parts of glass fiber, 2-5 parts of silane coupling agent, and 2-3 parts of resin into Step 1, keep the temperature constant, and continue to mix for 15 minutes; Step 5, Treatment of the anti-slip sheet: wash the anti-slip sheet obtained from steps 1 to 4 by mixing 1015F liquid medicine and B powder, then apply 905 glue, dry it, and cut it into the required shape and size; step 6, forming the anti-slip outsole : Put the non-slip sheet obtained in step 5 into the bottom mold, and integrally mold it with the TPR / TR material to inject the anti-slip TPR outsole as described above. The invention has high antiskid performance, low density, light weight, low cost and can be decomposed, recycled and reused.