170results about How to "Slow spread" patented technology

The present invention provides methods and system for managing neurological disorders such as epilepsy. In one embodiment, the method comprises measuring one or more signals from a patient and processing the one or more signals to characterize a patient's propensity for a future seizure. The characterized propensity for the seizure is thereafter used to determine an appropriate action for managing or treating the predicted seizure; and a recommendation is communicated to the patient that is indicative of the appropriate action.

A space-time signal processing system with advantageously reduced complexity. The system may take advantage of multiple transmitter antenna elements and / or multiple receiver antenna element or multiple polarizations of a single transmitter antenna element and / or single receiver antenna element. The system is not restricted to wireless contexts and may exploit any channel having multiple inputs or multiple outputs and certain other characteristics. Multi-path effects in a transmission medium cause a multiplicative increase in capacity.

The present invention provides systems and methods for managing intake of a pharmacological agent. In one method of the present invention, the systems and methods are for controlling intake of an anti-epileptic drug. In such embodiments, one or more signals from a patient are processed to predict an onset of a seizure. Upon the prediction of the seizure, the patient is allowed to access the pharmacological agent in a pharmacological agent dispenser.

A method and apparatus for achieving combined beamforming and transmit diversity for frequency selective fading channels in a communication system having a base station with multiple transmit antennae and a mobile terminal with at least a single receive antenna, the method comprising the steps of: providing a signal to be transmitted; space-time encoding the signal to produce at least two separate signals, each on a respective output; feeding each output signal to a multiple access transmit processor to produce an output signal; applying respective selected transmit beamforming weights to each output signal; feeding the respective weighted signals to a signal combiner to perform a summing function of the signals and produce a signal for transmission; feeding the summed signal to each of the multiple transmit antennae for transmission; transmitting the signals over respective physical channels; receiving the transmitted signal at at least a single receive antenna; feeding the transmitted signal to a multiple access receive processor to produce an output signal; and space-time decoding the received signal.

Provided is a fire rated or resistant recessed lighting assembly including a metal housing inside of which a lighting unit is placed, the housing being fire resistant for 120 minutes when tested according ASTM E11.9-12a without a protective fire resistant cover on outside of the housing. The fire resistant recessed lighting assembly can include a metal housing inside of which a light is placed and one or both of: i) an object made of a fire resistant material, such as an intumescent material, placed inside of the housing in between a trim and a closed end of the housing; and an ring made of a fire resistant material, such as an intumescent material, placed outside of the housing, wherein in event of a fire, the intumescent material expands to slow spread of the fire.

This invention relates to a formulation material and its method useful in forestry firefighting, the formulation material comprising: (a) an anhydride copolymer having a structural formula wherein a functional group X of said formula is at least one alkyl group selected from the family consisting of methyl, ethyl, and propyl groups! and (b) at least 0.1%, by weight, of at least one cross-linking agent for said anhydride copolymer, said agent selected from the group of cross-linking agents consisting of a biopolymer and a tannin, wherein a weight ratio of said anhydride copolymer to said cross-linking agent is at least 2:1, and wherein a total weight of said anhydride copolymer and said cross-linking agent, within the formulation, is at least 25% on an anhydrous basis.

A fire resistant roofing tile which utilizes economical materials and is formed using an efficient manufacturing technique. The tile has components shaped to prevent fire spread significantly enough to achieve a Class A fire retardation rating. Recycled materials are used in a compression molding process for commercial appeal and benefit to the ecology.

A composition which retards the spread of fire, protects assets at risk from fire damage and emits a material which aids in extinguishing the fire. The composition may be either in the form of a gel or a foam and may be used to protect any sort of object, such as personal property, real property or even humans, from fire. The gel form of the composition contains urea or a urea derivative that retains water and releases CO2 upon heating. In addition, a rheology modifier containing carboxyl groups is also employed. The foam form of the composition contains the urea or urea derivative and the rheology modifier, along with a foam generator such as sodium bicarbonate and citric acid. A method of retarding fire comprises the coating of an item with the fire retardant such that the retardant protects the item from the fire and aids in extinguishing the fire by releasing carbon dioxide.

A fire-proof paint modifier of tunnel based on polymer / clay inserting layer modification technology and its production are disclosed. The modifier consists of polymer, modified clay and additive, polymer is bromo-bisphenol A epoxy resin or amino resin solution, modified clay is insert modified roseite, concavo-convex rod clay or montmorillonite, and additive is expendable graphitic, magnesium hydroxide, aluminum hydrate and nanometer TiO2. The process is carried out by destroying clay structure, stripping it into basic unit, dispersing in polymer matrix, and obtaining modifier. Its advantages include better hydrophobicity and thermal stability, higher strength and toughness, to prevent smoke from eroding and improve corrosion and water resistances.

The invention discloses a fireproof alarm system for intelligent buildings, and belongs to the field of fire safety. The technical scheme point thereof comprises a detection module, an early warning module, an alarm module, a person recognition module and a central control module. The detection module detects the temperature and the smoke concentration situation in a security area, the detection module controls the early warning module to perform small-range alarm on a detected area and collects image information of the detected area when a suspected fire occurs, and the detection module controls the alarm module to alarm all areas and collects images of all areas when the fire is detected. The person recognition module transmits an image where someone may exist in the image information toa central processing module. The central processing module displays the image information, and the staff controls the other modules according to the image information through the central processing module, thereby solving the problem that the suspected fire in the security area is difficult to deal with, and achieving the effect that the staff correspondingly responds through the image information.

Provided is a high frequency radio apparatus capable of correcting a frequency of a carrier of the own apparatus in accordance with a frequency of a reception carrier when performing spread spectrum communication using very weak power. A carrier demodulating part demodulates a spread code received from a communication counterpart radio apparatus by using default carrier data, and sends the demodulated spread code to a synchronization timing detecting part. When the synchronization timing detecting part detects the spread code from the carrier demodulated data, a carrier frequency deviation detecting part performs a frequency analysis of the spread code to detect a deviation amount of the carrier frequency. A carrier data generating part generates corrected carrier data based on the detected deviation amount. A DBPSK modulating part uses the corrected carrier data to perform data transmission to the communication counterpart radio apparatus.

The invention discloses an inorganic composite A-class non-combustible insulation board. The insulation board comprises an insulation core material layer. An interface reinforcement layer is arranged on the outer surface and the inner surface of the insulation core material layer respectively, and each of the interface reinforcement layers comprises an alkali resistant screen cloth layer on the inner layer and a polymer water-proof anti-crack mortar layer on the outer layer. Meanwhile, the ratio of components of the insulation core material layer and the polymer water-proof anti-crack mortar layer is disclosed. The invention further discloses a preparation method of the inorganic composite A-class non-combustible insulation board. The inorganic composite A-class non-combustible insulation board has the advantages that both excellent heat insulation performances and good fire-proof performances are provided. The insulation core material layer and the interface reinforcement layers form an organic whole, so that defects of poor water-proof performances and low surface strength of common inorganic insulation boards are overcome. The insulation board can be pasted through polymer mortar directly when being installed on the wall, tedious interface treatment is not required, construction operations are convenient and rapid, and the bonding between the insulation board and a wall base layer is safe and firm. The wire-proof performance reaches the A class, and the whole fire-proof performance of a wall insulation system is greatly improved.

The invention discloses a hydrophobic lipophilic sponge aerogel composite material. The composite material is a porous hydrophobic lipophilic solid with compressive strength higher than 0.1MPa, density of 0.09-0.12g / cm<3>, porosity of 90-95%, pore size of 1-10mum, and organic liquid absorption capacity higher than 0.7ml / cm<3>. The preparation method comprises 4 steps: (1) a silicon source and a solvent are mixed; deionized water is added; and the mixture is stirred such that a silicon source solution is formed; (2) an acidic catalyst is added into the silicon source solution for regulating the pH value of the solution; a hydrolysis accelerator is added and the mixture is stirred; an alkaline catalyst is added and the mixture is stirred, such that silica sol is obtained; (3) the silica sol is added into a container containing sponge blocksn, and is allowed to stand, such that wet gel is formed; and (4) the wet gel is dried under normal pressure, such that the hydrophobic lipophilic sponge aerogel composite material is obtained. The preparation method provided by the invention is simple; a preparation period is short, and the entire preparation process can be completed within 12h; steps such as gel aging and solvent exchange are not needed; and a preparation success rate is higher than 98%.

The invention relates to multi-layer anti-flaming textile cloth and a manufacturing method thereof. The multi-layer anti-flaming textile cloth comprises at least three surface layers which are adhered through anti-flaming emulsion; the surface layers are interwoven of warps and wefts up and down; before being woven, the warps and the wefts are soaked in a specific anti-flaming chemical medicinal solution; the warps comprise textile metal fibers, polyester cotton, polyamide filaments and 20D chinlon matt fully drawn yarn (FDY) filaments; the wefts comprise cotton, hemp, furs and 20D chinlon matt FDY filaments; the cross sections of all the warps and wefts are flat rectangular; the firmness of the cloth can be improved; the warps and the wefts are soaked in the anti-flaming chemical medicines, so that effects of retarding flames and preventing fire from spreading are achieved; hexa-bromine water media and deca-bromine-antimonous oxide are coated on the surface of the cloth; furthermore, the cloth is tightly woven and is low in ventilating property, so that the anti-flaming effect of the cloth can be enhanced; the manufacturing method for the cloth is simple; a plurality of warps or wefts are combined, so that the firmness and the air permeability of the cloth are improved.

The invention discloses an electric energy metering terminal and an electrical fire monitoring method. The electric energy metering terminal comprises a sampling unit, a judgment unit and a processing unit, wherein the sampling unit is used for acquiring leakage current on a load line of the electric energy metering terminal in real time through a high-precision residual current transformer; the judgment unit is used for judging whether an electrical fire happens or not according to the leakage current which is acquired from the load line in real time; the processing unit is used for controlling on and off of a circuit load through a preset switch according to a judgment result whether the electrical fire happens or not. The electric energy metering terminal integrates a fire monitoring function, so that the electrical fire is prevented; timely circuit on-off processing is carried out on the happened fire, so that the spreading speed of the electrical fire is greatly reduced; besides, safety guarantee of the rescue work is provided for fire extinguishing, and the electric shock event in a fire extinguishing process is avoided.

The invention discloses a detection method for de-binding of a metal matrix composite. The method comprises the following steps: 1) placing an electromagnetic acoustic transducer onto the metal matrix surface of a metal matrix composite; 2) calculating excitation frequency f of an exciting source according to the thickness of the metal matrix in the metal matrix composite on the basis of the formula (1) and the formula (2) and meanwhile setting the exciting time exceeding at least one echo time; 3) inputting the exciting source to the electromagnetic acoustic transducer, generating ultrasonic wave in the metal matrix, propagating the ultrasonic wave to the binding surface and then reflecting, upward propagating the reflected ultrasonic wave to the electromagnetic acoustic transducer, forming an echo signal in the electromagnetic acoustic transducer, feeding the echo signal back to a computer, generating an image and a data and analyzing the binding degree. The detection method has the advantages that no coupling agent is required, no shape requirement for the detected metal composite exists and the detection can be performed under a field environment.

An apparatus is used with supplied power for treating air flow of an air handing system of a facility. A frame has a plenum with an inlet and an outlet. The frame is configured to position in the air flow of the air handing system for passage of the air flow therethrough. A filter is disposed in the plenum and is configured to filter the air flow therethrough up to a filtration threshold. An ultraviolet light source disposed in the plenum is connected in electrical communication with the supplied power and is configured to generate ultraviolet radiation in the plenum. A permeable metal barrier disposed in the plenum is configured to impede the air flow therethrough up to an impedance threshold. The barrier is connected in electrical communication to the supplied power and is heated to a surface temperature.

The invention relates to a double-layer flame-retardant textile fabric and a manufacturing method thereof. The textile fabric is provided with two surface layers, wherein a flame-retardant hot melt adhesive is filled between the layers; the surface layers are formed by interweaving warps and wefts; the warps and the wefts are soaked in a specific flame-retardant chemical agent before weaving; the warps comprise stainless steel fibers, polyester kapok, kapok nylon filaments and 20 D chinlon matt FDY (Fully Drawn Yarn) filaments; the wefts comprise kapok, flax, wool and the 20 D chinlon matt FDY filaments; the cross section of each warp or each weft is flat rectangular, and the stiffness of the fabric can be improved. The warp and weft materials are soaked with the flame-retardant chemical agent, so that an effect for preventing a fire from spreading is realized, a fire retarding agent sprayed on the fabric has a surface inflaming retarding effect, the fire retarding agent is combined with the fabric, so that the fabric can be woven tightly, the air permeability is poor, and the flame-retardant effect of the fabric can be improved; and the manufacturing method of the fabric is simple, and a plurality of the warps and wefts are twisted, so that the stiffness and the impermeability of the fabric are improved.

The invention discloses a fire extinguishing system using a power battery liquid cooling device. The fire extinguishing system comprises a battery cell module, a temperature sensor, a gas sensor, a smoke detector, a flame detector, a water cooling pipeline, a cooling liquid nozzle, a cooling liquid injection valve, a fire extinguishing agent storage tank, a fire extinguishing management system, analarm display screen, a connecting wire harness and a battery management system, wherein the temperature sensor is arranged in the battery cell module; the flame detector which is in electric signalconnection with the fire extinguishing management system through the connecting wire harness is arranged on the outer side of the battery cell module; the gas sensor, the smoke detector and the fire extinguishing agent storage tank communicate with the fire extinguishing management system through the connecting wire harness; and the water cooling pipeline is further arranged on the outer side of the battery cell module. Through the application of a proper control strategy, when a battery is subjected to thermal runaway or combustion, cooling liquid in a liquid cooling system is controlled to be injected in a directional mode, the advantage that the specific heat capacity of the liquid is large is utilized, the temperature of a battery cell is rapidly reduced, and the thermal runaway or flame spreading speed is delayed to provide enough escape time for passengers.

The invention discloses a low-smoke, halogen-free, flame-retarding and fireproof polyolefin insulated cable and a preparation method thereof. According to the key point of the technical scheme, the low-smoke, halogen-free, flame-retarding and fireproof polyolefin insulated cable comprises insulated wire core groups, fireproof layers, an insulating layer, an oxygen separation layer and a protecting jacket layer in sequence from interior to exterior, wherein the fireproof layer is prepared from the following components in parts by weight: 5 to 15 parts of mineral flame retardant, 50 to 70 parts of polyethylene resin and / or polyvinyl chloride resin, 5 to 15 parts of glass fiber, 5 to 15 parts of polysulfonamide fiber, 5 to 10 parts of melamine amide-inorganic montmorillonite, 10 to 35 parts of polyorganosiloxane, 0.5 to 5 parts of solubilizer and 0.5 to 5 parts of microcapsule pigment; the insulating layer is prepared from the following components in parts by weight: 50 to 70 parts of polyethylene resin and / or polyvinyl chloride resin, 5 to 15 parts of Kevlar fiber and 5 to 15 parts of mineral flame-retarding filling. The exteriors of insulated wire cores are cladded with the fireproof layers, the insulating layer, the oxygen separation layer and the protecting jacket layer; the structure with sequential distribution can be used for decelerating the spreading speed of a fire behavior in the condition that the cable is on fire.

The invention relates to the field of gas films, in particular to a gas film with firefighting and smoke exhausting functions. The gas film comprises an inner film, an outer film and a smoke exhausting component. The inner film is fixedly arranged on the outer film via a connecting piece, at least two cavities are formed by the inner film, the outer film and the connecting piece and are communicated with each other, open holes which correspond to one another are formed in the inner film and the outer film, the smoke exhausting component is arranged at the open holes, and the outer edge of thesmoke exhausting component is hermetically connected with the inner film and the outer film. The gas film has the advantages that the open holes which correspond to one another are formed in the innerfilm and the outer film, the smoke exhausting component is arranged at the open holes and can be switched on when fire hazards occur, the inner gas pressures of the gas film are higher than the external air pressures, dense smoke generated during combustion can be exhausted out of the gas film by the smoke exhausting component, and accordingly harm on personnel in the gas film due to the high temperatures and mixed toxic gas can be reduced to a great extent; the high-temperature dense smoke can be effectively exhausted, accordingly, the spreading speed of open fire can be effectively reduced,the visual field ranges of the personnel in the gas film can be expanded, and the precious time can be gained for escape.

Provided is a fire rated or resistant recessed lighting assembly including a metal housing inside of which a lighting unit is placed, the housing being fire resistant for 120 minutes when tested according ASTM E119-12a without a protective fire resistant cover on outside of the housing. The fire resistant recessed lighting assembly can include a metal housing inside of which a light is placed and one or both of: i) an object made of a fire resistant material, such as an intumescent material, placed inside of the housing in between a trim and a closed end of the housing; and ii) an ring made of a fire resistant material, such as an intumescent material, placed outside of the housing, wherein in event of a fire, the intumescent material expands to slow spread of the fire.

The invention discloses a fireproof door plate with cooling and heat insulation functions, comprising a plate body, wherein a storage frame made of metal is embedded in the plate body. A piston blockis hermetically and slidably mounted in the storage frame and divides the storage frame into a first cavity and a second cavity; the first cavity is positioned above the second cavity; the first cavity is filled with cooling liquid; evaporation liquid is contained in the second cavity. The evaporation liquid is liquid with a low boiling point, water spraying mechanisms are installed on the two sides of the upper end of the plate body, each water spraying mechanism comprises an atomizing nozzle and a sealing rod, the atomizing nozzles are fixedly installed on the side wall of the plate body, water outlet holes are formed in the plate body, and the atomizing nozzles communicate with the first cavity through the water outlet holes. According to the fireproof door plate, when a fire occurs, the door plate is heated, the temperature rises, cooling liquid is sprayed out of the atomizing spray heads through the water outlet holes, a certain cooling and fire extinguishing effect is achieved after the cooling liquid is sprayed out, and at least the fire spreading speed can be reduced.

The invention discloses a three-dimensional space firefighting command controlling system. The system is characterized in that a positioner and a firefighter data terminal are worn by a firefighter, a backfield data terminal and a backfield host connected with the backfield data terminal in a wireless manner are arranged at an on-site command position, the positioner calculates a positioning result of the firefighter, transmits the result to the firefighter data terminal, and sends data to the backfield data terminal through the firefighter data terminal, and the backfield host receives the data from the backfield data terminal and displays real-time position and track of the firefighter. According to the system, a holographic three-dimensional space model is constructed by employing the GIS technology, the VR technology is employed, two-group, two-dimensional and real-scene three-dimensional seamless integration in a fire scene range can be realized, the positioning of positions and movement tracks of the firefighters in the fire scene space can be realized by employing a VR+ data terminal, the entire time-space and multi-dimensional system with high space precision is constructed, and the safety of the firefighters is guaranteed in an omnibearing manner.