472 results about "Extreme environment" patented technology

Embodiments of the invention relate to a method and system for transferring power wirelessly to electronic devices. The system can utilize magnetic coupling between two coils at close proximity to transfer sufficient power to charge an electronic device. Embodiments of the invention pertain to an array of spiral coils that can be used to transmit power for transfer to receiver coils. Potential applications of this technology include charging consumer electronic devices (cell phones, laptops, PDAs, etc), developing hermetically sealed devices for extreme environments, and less invasive transcutaneous energy transfer (TET) systems. Various embodiments of the subject system can be referred to as PowerPad system. Embodiments can incorporate one or more of the following: planar inductors, PCB transformers, and very high frequency power supplies. Embodiments of the invention also pertain to planar inductors having characteristics that allow the production of even magnetic field, as well as systems that incorporate such planar inductors.

An optical sensing probe includes a tube having a tip portion configured for placement in an environment in which conditions are to be sensed and an etalon having a known characteristic disposed proximate the tip portion. The tube also includes a head portion remote from the tip portion containing a light directing element for directing light beams at the etalon and receiving reflected light beams from the etalon wherein the received reflected light beams are used for determining an environmental condition proximate the tip portion. A method for measuring a thickness of the etalon may include directing a light beams at different frequencies at the etalon and receiving the light beams from the etalon. The method may also include identifying conditions of the respective light beams condition received from the etalon and then calculating a first thickness of the etalon responsive to the respective conditions and the known characteristic.

High-entropy alloy, particularly a precipitation hardening high entropy alloy, is provided as a component material used in electromagnetic, chemical, shipbuilding, mechanical, and other applications, a component material used in extreme environments requiring high strength and good corrosion resistance, and the like.

A wireless power and data connector includes a socket and a plug. The socket has a power port for connecting to a wired power transmission line, a data port for connecting to a wired data communication line, a wireless power transmitter, and a wireless data transceiver. The plug includes a power port for connecting to a wired instrument power transmission line, a data port for connecting to a wired instrument data communication line, a wireless power receiver, and a wireless data transceiver. The socket has a concave portion and the plug has a convex region shaped such that the convex region of the plug removably fits within the concave region of the socket. The wireless power transmitter and wireless power receiver transmit power from the socket to the plug using magnetically coupled resonant tank circuits.

A durable highly reflective silver mirror characterized by high reflectance in a broad spectral range of about 300 nm in the UV to the far infrared (˜10000 nm), as well as exceptional environmental durability. A high absorptivity metal underlayer is used which prevents the formation of a galvanic cell with a silver layer while increasing the reflectance of the silver layer. Environmentally durable overcoat layers are provided to enhance mechanical and chemical durability and protect the silver layer from corrosion and tarnishing, for use in a wide variety of surroundings or climates, including harsh or extreme environments.

Methods and compositions for developing a series of microfluidic, USB-enabled, wireless-enabled, lab-on-chip devices, designed to reduce the chain-of-custody handling of samples between sample acquisition and final reporting of data, to a single individual. These devices provide on-the-spot testing for micro- and nanoscale (molecular) analysis of blood, urine, infectious agents, toxins, measurement of therapeutic drug levels, purity-of-sample testing and presence of contaminants (toxic and non-toxic, volatile and non-volatile); and for the identification of individual components and formal compounds—elemental, biological, organic and inorganic—inclusive of foodstuffs, air, water, soil, oil and gas samples. These devices may be relatively inexpensive, ruggedly designed, lightweight and capable of being employed—depending upon the specific application—by individuals with limited training, in remote and extreme environments and settings: including combat zones, disaster areas, rural communities, tropical / arctic / desert and other inhospitable climates and challenging terrains. The device may be comprised of materials that are reclaimed, are re-usable and are recyclable.

The invention relates to a function-integration gradient composite material with polymer / porous ceramic structure and a preparation method. The invention solves the problems that single material can not meet the requirement for the performance of the material made by the application condition in an extreme environment and the multilayer composite-structure material is easily layered and has poor safety and reliability. The product of the invention is made from a polymer layer, a gradient connecting layer and a ceramic layer from the inside to the outside. The preparation method comprises the following steps that: 1. the polymer layer, the gradient connecting layer and the ceramic layer are sequentially paved and then are put into a die to be formed by compression so as to obtain the green body of the composite material; 2. the ceramic layer of the green body of the composite material is loaded with high-density heat flux and then is naturally cooled. The composite-structure material of the invention has the advantages of small weight, strong structural strength and high effective heat insulation, is suitable for being used under the extreme working conditions of high temperature, airflow washout, etc., and is safe as well as reliable. The preparation method of the invention is simple and easy to be operated, and can prepare large-scale products with a complicated shape.

An inertial positioning device comprising: a base plate (10); a top plate (20) for mounting an element to be rotated; a rotation member (16) having a column (18) on which the top plate is mounted in frictional engagement for slip-stick rotational motion; and a pair of piezoelectric actuators (12) each secured to the base plate at one end and to lateral extensions (17) of the rotation member at their other ends. Simultaneous actuation of the piezoelectric actuators rotates the column of the rotation member about its axis. When a suitable asymmetric drive signal is supplied to the piezoelectric actuators, the top plate is rotated by slip-stick motion. The device is compact, has a good load capacity for an inertial motor and is operable in extreme environments such as liquid helium temperatures, high vacuum and high magnetic fields.

An integrated composite structure with a graded coefficient of thermal expansion (CTE) is formed by selecting a plurality of layers of materials with a graded CTE and using joining approaches such as welding, brazing, or solid state bonding to produce a CTE-graded layered composite or near net shape. The integrated composite billet or near net shape is then processed to produce a first surface for attachment of a first structural member having a first CTE and to produce a second surface of for attachment of a second structural member having a second CTE.

The invention relates to a slope water-soil loss experiment device and method under combined extreme meteorological conditions. The experiment device comprises an experiment table, a combined extreme environment simulation unit and a control system unit, wherein the experiment table comprises a bottom base, a slope base plate, a downstream baffle plate, soil block standard elements and an experiment table regulating device; the combined extreme environment simulation unit comprises a rainfall simulation device, an air field simulation device, a freezing rain simulation device, a snowfall simulation device, a sunlight simulation device, an air temperature simulation device and an overland flow simulation device; the control system unit comprises a power supply system, a water supply system and a signal acquisition and processing system. According to the invention, the slope water-soil loss experiment device and method under combined extreme meteorological conditions perform indoor simulation and measurement of a slope water body loss situation under a single or combined extreme meteorological conditions of rain storm, rain and snow, freezing rain, flood, drought, high temperature and the like, can achieve accurate and reliable results, and can be widely applied to water-soil loss monitoring, principle analysis and governance under complex variable meteorological conditions.

An insulated spray cooling system for extreme environments for providing a desired enclosed environment for electronic devices regardless of external environmental conditions. The insulated spray cooling system for extreme environments includes an insulated enclosure that isolates the electronic devices being thermally managed from the external environment and a thermal management unit within the enclosure for thermally managing electronic devices.

The invention provides a transaminase mutant and applications of the transaminase mutant. The amino acid sequence of the transaminase mutant is the amino acid sequence with mutation as shown in SEQ IDNO:1, the amino acid sites with mutation comprise the T7C+S47C site. For the transaminase mutant with the mutation sites, the enzyme activity and / or stability are / is greatly improved, and the transaminase mutant can be applied in the relatively extreme environment. In addition, the transaminase mutant with the mutation sites can be further prepared into immobilized enzyme through the immobilization technology, the activity and the stability of the immobilized enzyme are relatively high, and the immobilized enzyme can be recycled for a plurality of times, and is suitable for being applied to continuous flow reaction of a packed bed.

The invention discloses a high-performance multi-layer thin-mat composite thermal insulation material and a manufacturing method of the high-performance multi-layer thin-mat composite thermal insulation material. The high-performance multi-layer thin-mat composite thermal insulation material is manufactured from multiple layers of thin mats, an infrared blocking agent and an aerogel material in a composite manner. The high-performance multi-layer thin-mat composite thermal insulation material is manufactured by laying multiple layers of the thin mats, the infrared blocking agent and aerogel grains of different content are filled into the thin mats, the aerogel grains are prepared from sol-gel with the combination of a supercritical drying mode, and the function that multiple layers of the thin mats are adhered together is also achieved. According to the difference of application temperature zones, the types of fibers and the types and the contents of the infrared blocking agents can be adjusted so as to obtain material combination with optimal thermal insulation property; the material is also good in forming property, and products of different shapes and sizes can be manufactured. Therefore, the material has significant application values in fields such as aerospace crafts, kiln heat preservation and efficient thermal insulation and prevention in an extreme environment.

Apparatus for cooling a person in extreme environments. The apparatus includes a garment having a vest with attached tubing. The vest includes an evaporative cooling device and the tubing is configured to circulate chilled water. The vest includes a material that is able to receive and absorb an amount of liquid water with a mass greater than the material. When liquid water is applied to the vest, the vest absorbs the water for later evaporation. The tubing enables the garment to have a lower differential temperature between the inside surface and the outside surface, thereby reducing the rate of evaporation, which enables the passive cooling to be operable for an extended period of time. When the heat load does not permit the differential temperature to be reduced, the tubing removes additional heat, thereby providing additional heat removing capacity beyond the passive cooling.

This document describes the design of an articulated artificial skin that may be used to cover any three dimensional surface that changes morphology with time. In one embodiment the skin is made from individual four sided pyramids arranged to bend about their edges. Each pyramid may contain a solid, liquid, gas, or plasma, or any relevant technology such as solar panels and rechargeable batteries. Each pyramid may be connected to neighboring pyramids via tubes, pipes, or electrical wires to allow the flow of fluids and / or electricity. Multi layers of the artificial skin may be used to provide features such as pressure garments, cooling garments, thermal barriers, and armor shielding suitable for use in extreme environments.

An adaptive spindle motor startup method includes applying an internal driving voltage to a disk drive, sensing an internal temperature of the disk drive, and controlling the startup of a spindle motor by adjusting a startup factor related to a startup current applied to the spindle motor corresponding to the sensed temperature. Thus, the delay of time to reach a target rotation rate is prevented in the spindle motor in an extreme environment, for example at temperatures lower or higher than 25° C. The overall startup time is efficiently optimized through the improvement of the startup method of the spindle motor.

The invention provides an environment modeling method applicable to navigation of automatic piloting vehicles. One of the key problems needing to be overcome for the navigation of automatic piloting vehicles is to modeling an environment in which a vehicle pilots, to distinguish sceneries in the environment and to convert environmental information into parameterized information which can be used for intelligent obstacle avoidance and path planning of an automatic piloting vehicle. According to the invention, a laser sensor is provided at the front of the automatic piloting vehicle; a series of steps like measurement of spatial distance between the center of the laser sensor and the center of the vehicle are carried out; the whole environment is modeled by utilizing laser point sequences acquired in the driving process of the vehicle. Displacement and course angles of the vehicle are calculated by registering observation of the laser sensor at adjacent sampling time, which is a self-contained scheme and can effectively avoid the problem of LOS (lost of signals) in extreme environments in similar methods which employ a scheme bases on a constellation system; in the method provided in the invention, the laser point sequences in laser beams are processed with a method of inference based on a probabilistic graph model, which enables geometrical characteristics of scenery contours to be utilized and managed intelligently, and therefore, higher accuracy in environment modeling is obtained in the invention.

The invention relates to a landmark dynamic configuration method and device for a mobile robot searching unknown environments. A landmark is the positioning and navigation indication of a robot, no landmark arranged in advance exists in the unknown environments, and natural characteristics are hard to extract from the environments for serving as the landmark. The scheme of the method for solving the problems is as follows; a robot with a dynamic configuration landmark enters the unknown environments for searching, the landmark is independently and dynamically configured in an on-line way (realized by a vehicular putting device, seeing the abstract drawing) according to the positioning and drawing establishment requirements, and the configured landmark is used for finishing the positioning and environment drawing establishment of the robot. A dynamic configuration landmark positioning device realizes the positioning of the robot on the basis of an ultrasonic distance-measuring principle, realizes landmark identification on the basis of an exclusive identity method, and realizes data alternation on the basis of radio frequency communication, thereby having the advantages of high precision, small volume, low power consumption, and the like. The invention can be used for the fields of military affairs, antiterrorism, extreme environment operation, and the like. which requires intelligent equipment to carry out independent operation under the unknown environments.

A capacitor assembly for use in high voltage and high temperature environments is provided. More particularly, the capacitor assembly includes a capacitor element containing an anodically oxidized porous, sintered body that is coated with a manganese oxide solid electrolyte. To help facilitate the use of the capacitor assembly in high voltage (e.g., above about 35 volts) and high temperature (e.g., above about 175° C.) applications, the capacitor element is enclosed and hermetically sealed within a housing in the presence of a gaseous atmosphere that contains an inert gas.

The invention relates to a foaming agent developed for foam drainage of a gas well, in particular to a fatty acid amide propyl betaine foam scrubbing agent as well as a preparation method and an application thereof. The fatty acid amide propyl betaine foam scrubbing agent is adaptable to the highly-mineralized and high-oil-bearing extreme environment with the mineralization degree higher than 25*10<4> mg / L and the content of condensate oil higher than 30%. According to the technical scheme, lauric acid, coconut fatty acid, oleic acid (cis-9-octadecenoic acid) and other fatty acids are added to a reactor in a certain mole ratio and have a condensation reaction with N,N-dimethyl-1,3-propane diamine at the temperature of 140-160 DEG C for 3-4 h, and an intermediate product, namely, long-chain alkyl tertiary amine, is obtained; the intermediate product and sodium chloroacetate have a nucleophilic substitution reaction at the temperature of 60-90 DEG C for 3-6 h, the content of free amine is tested to be smaller than 0.5%, fatty acid amide propyl betaine is obtained after the reaction, and fatty acid amide propyl betaine is a main agent of the foam scrubbing agent for the gas well. The prepared foam scrubbing agent has good foaming and foam stabilizing performance, foams carry a large quantity of liquids, and the foam scrubbing agent has excellent foam flooding performance in various extreme environments and has wide prospect.

The invention discloses a gemini surfactant, and a preparation method and applications thereof. In the prior art, the defoaming performance of conventional surfactants is reduced or lost in well drilling process because of high mineralization degree and high oil-containing extreme environment. Synthesis of the gemini surfactant possesses following steps: 15 to 20 parts of sodium 3-chloro-2-hydroxy propanesulfonate and 25 to 50 parts of an aliphatic tertiary amine are delivered into a three-mouth flask containing an isopropanol aqueous solution, an obtained mixture is heated to 70 to 90 DEG C for 4 to 6h of reaction so as to obtain a long-chain fatty hydroxypropyl sulfonated betaine; 80 to 120 parts of the long-chain fatty hydroxypropyl sulfonated betaine and 15 to 25 parts of dibromo alkane are delivered into a three-mouth flask, 70 to 100 parts of an organic solvent is added, uniform mixing is carried out, 8 to 12 parts of a base catalyst is added, 1.2 to 2.4 parts of a phase transfer catalyst is added, and reaction is carried out for 18 to 48h at 70 to 90 DEG C, so as to obtain the gemini surfactant. The preparation method is simple; performance is excellent; and the gemini surfactant possesses excellent effect as a foam scrubbing agent.

The invention discloses a downhole safety valve, wherein a central tube is arranged in a main body consisting of a top joint, a valve body, an outer cylinder and a tail joint connected sequentially; the upper end of the top joint and the lower end of the tail joint are respectively connected with an external oil tube; a corrugated tube assembly is arranged in the gap between the outer cylinder and the central tube, and the bottom end of the corrugated tube assembly is connected with a positioning ring fixed on the peripheral wall of the central tube; a boss is formed on the inner wall of the lower port of the outer cylinder, a pressure spring is sleeved on the periphery of the central tube between the lower side of the positioning ring and the boss, and a plate valve assembly is connected to the bottom end of the outer cylinder; the top joint is provided with a control line, the control line is embedded on the top joint through a control line connection assembly and communicated with a hydraulic oil passage formed in the valve body wall, and the bottom port of the hydraulic oil passage in the valve body wall is connected with the top end of the corrugated tube assembly. The downhole safety valve can be used in extreme environment with well conditions such as super high temperature steam thermal recovery, high gas tightness requirement, ultradeep installation, high sandiness environment and high corrosion.

A metallic alloy, more particularly, a high-entropy alloy with a composite structure exhibits high strength and good ductility, and is used as a component material in electromagnetic, chemical, shipbuilding, machinery, and other applications, and in extreme environments, and the like.

The invention discloses a special operation robot for an extreme environment. The special operation robot comprises a main control compartment body with a main control unit, wherein a chassis walking unit and a folding stretch type arm support unit are arranged on the main control compartment body; a power supply module is arranged in the chassis walking unit; the folding stretch type arm support unit comprises a supporting arm base and multistage connecting and supporting arm supports; the supporting arm base is arranged on the main control compartment body; the first-stage connecting and supporting arm support is hinged to the supporting arm base; a mounting base is arranged on the final-stage connecting and supporting arm support; a first linear driving mechanism is hinged to the supporting arm base; a first driving rod of the first linear driving mechanism is connected with the first-stage connecting and supporting arm support in a hinging manner; a connecting arm buckle is hinged between two adjacent connecting and supporting arm supports; each connecting arm buckle is hinged to one connecting and supporting arm support through a second linear driving mechanism; the first linear driving mechanism, the second linear driving mechanism and the power supply module are respectively connected with the main control unit. The special operation robot disclosed by the invention has the advantages of wide operation range, small occupied space and wide application range.

The oxygen generation system includes a chemical oxygen generator that creates oxygen through an exothermic chemical reaction that creates sufficient heat to pose a serious risk to a user. The oxygen generation system therefore includes a containment layer to permit safer administration of oxygen from a chemical oxygen generator by shielding a user from and / or dissipating the heat generated by the chemical generator. The oxygen generation system may be handheld and portable for use in extreme, remote, and / or hostile conditions, locations, environments, and situations with a simple activation method easily operated under stress without any preparation or maintenance.