876results about How to "Liquidity" patented technology

A system and method for monitoring patient variables in a wireless manner via a patient worn monitoring device is disclosed. The patient monitoring device is wearable and connects to a variety of sensors with at least one microphone for voice communications. The device connects to a wireless network and thence to the Internet for transmitting data to a Host for access by a medical care provider. The medical care provider communicates with the patient-wearable device via the Internet and the wireless network to send instructions to the patient-wearable monitoring unit and to communicate via voice with the patient. The medical care provider can also flexibly reconfigure the device to change collection parameters. When an alarm limit is exceeded as detected by the sensors, the data are transmitted to the Host computer for use by the medical care provider, thereby allowing full mobility to the patient wearing the device.

Systems and devices for dynamically stabilizing the spine are provided. The systems include a superior component for attachment to a superior vertebra of a spinal motion segment and an inferior component for attachment to an inferior vertebral of a spinal motion segment. The interconnection between the two components enables the spinal motion segment to move in a manner that mimics the natural motion of the spinal motion segment while substantially offloading the facet joints of the spine. Methods are also provided for stabilizing the spine and for implanting the subject systems.

The invention provides a pixel circuit that can cancel the influence of the mobility of a drive transistor. A drive transistor supplies to a light-emitting element, an output current dependent upon an input voltage during a certain emission period. The light-emitting element emits light with a luminance dependent upon a video signal in response to the output current supplied from the drive transistor. The pixel circuit includes a correction unit that corrects the input voltage held by a capacitive part before the emission period or at the beginning of the emission period, in order to cancel the dependence of the output current on the carrier mobility. The correction unit operates during part of a sampling period in response to control signals supplied from scan lines. Specifically, the correction unit extracts the output current from the drive transistor while the video signal is sampled, and negatively feeds back the output current to the capacitive part to thereby correct the input voltage.

Systems and devices for dynamically stabilizing the spine are provided. The systems include a superior component for attachment to a superior vertebra of a spinal motion segment and an inferior component for attachment to an inferior vertebral of a spinal motion segment. The interconnection between the two components enables the spinal motion segment to move in a manner that mimics the natural motion of the spinal motion segment while substantially offloading the facet joints of the spine. Methods are also provided for stabilizing the spine and for implanting the subject systems.

The invention discloses a composite foaming agent, a preparation method thereof and application thereof. The composite foaming agent comprises azodicarbonamide, sodium bicarbonate and an auxiliary foaming agent in a weight ratio of (0.3-0.9):(0.2-0.6):(0.1-0.8). The auxiliary foaming agent is prepared by uniformly stirring attapulgite, zeolite and calcite, soaking the mixture in diluted hydrochloric acid of which the concentration is 0.5 to 6 weight percent, drying the mixture, crushing the dried mixture into powder, blending the powder and powdery white carbon black and uniformly stirring the mixture, wherein the weight ratio of the attapulgite to the zeolite to the calcite to the white carbon black is (0.3-0.8):(0.02-0.6):(0.1-0.8):(0.01-0.8). The composite foaming agent disclosed by the invention has relatively high liquidity and dispersibility, a low decomposition temperature and a long decomposition temperature period.

An apparatus and method for measuring the flow velocity of a fluid flowing through a pipe that includes an array of at least two ultrasonic sensor units (with as many as 16 sensor units) disposed at predetermined locations along the pipe. Each sensor unit includes an ultrasonic transmitter and an ultrasonic receiver. Each sensor unit provides a respective signal indicative of a parameter of the transit time or amplitude of the ultrasonic signal propagating between each respective ultrasonic transmitter and ultrasonic receiver. A signal processor defines a convective ridge in the k-ω plane in response to the ultrasonic signals using an adaptive beamforming algorithm, such as Capon and Music. The signal processor further determines the slope of at least a portion of the convective ridge to determine the flow velocity of the fluid.

The invention relates to a magnesium aluminate spinel foamed ceramic filter which is excellent in high-temperature chemical stability and thermal shock resistance. A preparation method of the magnesium aluminate spinel foamed ceramic filter comprises the following steps: firstly, using water-base resin, a dispersing agent and water as a solvent, forming ceramic powder by using magnesium aluminate spinel powder, aluminum oxide powder and magnesium hydroxide powder, and mechanically stirring to prepare slurry; soaking polyurethane porous sponge serving as a carrier in slurry, pressing to remove excessive slurry to prepare a preform body, drying and sintering to obtain the magnesium aluminate spinel foamed ceramic filter. The foamed ceramic filter disclosed by the invention can satisfy rigorous requirements of filtering of molten magnesium alloy, has good high-temperature stability, does not pollute the alloy, has good filtering and adsorbing effect on inorganic impurities in the molten magnesium alloy, and is good in filtering and purifying effect, small in fluid resistance, and large in filtration yield; and good using effect is obtained through trial in casting production of metal magnesium and magnesium alloy.

The invention provides a pixel circuit that can cancel the influence of the mobility of a drive transistor. A drive transistor supplies a light-emitting element with an output current dependent upon an input voltage. The light-emitting element emits light with a luminance dependent upon a video signal in response to the output current supplied from the drive transistor. The pixel circuit includes a correction unit that corrects the input voltage held by a capacitive part in order to cancel the dependence of the output current on the carrier mobility.

The present invention is an apparatus having a stabilizing device, at least two signal applicators, and a signal generator for surface electrical stimulation and stabilization to treat disorders of the joints.

The present invention provides a shoulder pad for use in a contact sport, such as football, hockey or lacrosse. The shoulder pad includes a pair of arch members, each having an upper portion, a front portion depending from the upper portion, and a rear portion depending from the upper portion. The shoulder pad further includes at least one side pad assembly having an epaulet and a shoulder cap, wherein the shoulder cap overlies the wearer's shoulder region and the epaulet overlies both the arch member and the shoulder cap. The side pad assembly is operably secured to the body arch member by a fastening assembly that includes a flexible single band. Unlike conventional designs, the single band secures both the epaulet and the shoulder cap to the upper portion of the arch member. The shoulder pad further includes a pair of interior pad assemblies wherein each interior pad assembly is removably connected to an arch member. The interior pad assembly is an integrated unit formed from a front pad, an intermediate pad, and a rear pad joined together to form distinct air management chambers.

A capless multiaxial screw fixation assembly, including: a screw having a threaded portion and a screw head portion positioned at one end thereof; and, a retainer having a first end, a second end opposite the first end, and a bore for receiving the screw threaded portion so that the screw head portion is seated therein. At least one of the screw and the retainer is configured such that the retainer is able to pivot about the screw head portion in a non-symmetrical manner.

The present invention discloses a self-compacting concrete for CRTS III plate-type ballastless track filling layer. The concrete is prepared from the following raw materials in parts by weight: 270-350 parts of cement, 0-130 parts of coal fly ash, 0-120 parts of mineral powder, 20-50 parts of an expanding agent, 790-900 parts of fine aggregate, 750-900 parts of continuous gradation coarse aggregate, 20-40 parts specific viscosity modified materials, 5.5-8.5 parts of a specific sustained release controllable polycarboxylic acid water reducing agent and 165-180 parts of water. According to the invention, the specific viscosity modified materials and specific sustained release controllable polycarboxylic acid water reducing agent are used in combination to prepare the specific self-compacting concrete for filling layer with good flowability, strong volume stability, low sensitivity for water consumption, small thixotropic time change, low shrinkage and good longevity, thereby reducing theconstruction difficulty of the CRTS III plate-type filling layer and prolonging the sevice life of the ballastless track structure.

The invention discloses a remediation method of organic contaminant-heavy metal compound contaminated soil. The remediation method comprises the following steps: adding persulfate into organic matter-heavy metal compound contaminated soil, and on the basis of effective oxidative degradation of organic contaminant, further using iron-based biochar for passivating heavy metals after playing an activating effect so as to achieve effective remediation of the organic matter-heavy metal compound contaminated soil. Compared with the method for remedying contaminated soil with single contamination by using the biochar or the persulfate, the remediation method provided by the invention has the advantages as follows: two methods are combined for remedying organic matter-heavy metal compound contamination, the persulfate is used for oxidizing organic matters and can fully mineralize the organic matters; for heavy metal contaminated soil, the persulfate can oxidize the heavy metals, and reduces the pH of the soil to cause an increase in the concentration of effective-state metal; the biochar fixes the heavy metals to the surface through adsorption, so that the bioavailability of the heavy metals is reduced.

The invention provides a pixel circuit that can cancel the influence of the mobility of a drive transistor. A drive transistor supplies to a light-emitting element, an output current dependent upon an input voltage during a certain emission period. The light-emitting element emits light with a luminance dependent upon a video signal in response to the output current supplied from the drive transistor. The pixel circuit includes a correction unit that corrects the input voltage held by a capacitive part before the emission period or at the beginning of the emission period, in order to cancel the dependence of the output current on the carrier mobility. The correction unit operates during part of a sampling period in response to control signals supplied from scan lines. Specifically, the correction unit extracts the output current from the drive transistor while the video signal is sampled, and negatively feeds back the output current to the capacitive part to thereby correct the input voltage.

An endoscopic sheath having a biomimetic retractor for retracting organs and tissues in the body. The inflatable retractor comprises an inflatable balloon configured to retract specific organs and tissues at the site of the endoscopic procedure, with attached inflation and deflation means. In one embodiment, the inflatable retractor is attached to an outer tube or cannula. A second, inner cannula is placed within the outer cannula and attached thereto by a plurality of substantially elastic strands. The strands center the inner cannula while allowing it to be manipulated in any direction.

The invention relates to a biomass feed divider with changeable trough obliquity and vibration frequency and amplitude, which realizes continuous, stable and safe feed division by adopting two regulating measures of changing obliquity of a trough and changing vibration frequency and amplitude and by exciting force generated by a vibrating motor (9). The device is formed by arranging one or a plurality of independent distributors in parallel, wherein each distributor mainly comprises a trough body (4), a vibrating motor (9), an elevating (8), a spring supporting mechanism (11) and an auxiliary mechanism; the trough body (4) is supported by the spring supporting mechanism (11) at the front part and the elevating (8) at the rear part, the vibrating motor (9) is arranged in the middle of the bottom of the trough body (4), and the rear part of the trough body (4) is connected with bulkhead by canvas (3). The device integrates material storage and material distribution, is not only suitable for hard biomass but also is suitable for soft biomass, and has lateral expansibility, thereby being convenient to be used together with material equipment of various types.

The invention discloses a PH value monitoring wireless sensing network (WSN) node device for preventing secrete drainage of sewage and a monitoring method. The PH value monitoring WSN node device comprises a floating ball floating in water in a sealed manner and a square shell which is fixedly connected with the bottom of the floating ball and is immersed in the water, wherein an antenna bracket table and a communication antenna are fixedly arranged in an upper half ball cover; a charging interface and a power switch are arranged on the antenna bracket table; a circuit board is fixed at the bottom in a lower half ball cover; a water storehouse is arranged at the bottom in the square shell; a water feeding storehouse is arranged on one side of the upper part of the water storehouse; a magnet valve is arranged between the water feeding storehouse and the water storehouse; the lower end of a PH value sensor extends into and is suspended in the water feeding storehouse; an electromagnet bracket fixed on the inner wall of the square shell is arranged on the upper part in the square shell; an electromagnet is supported on the electromagnet bracket; the upper end of a spring is fixedly connected with the electromagnet bracket, and the lower end of the spring is connected with the magnet valve just under the electromagnet; and when the PH value of a target water domain reaches an abnormal alarm threshold value, the valve can automatically open and collect samples with low water quality.

The invention provides a preparation method of ganoderma lucidum mycelium slices, which can be used for solving the technical problem that ganoderma lucidum mycelium powder is inconvenient to eat in the prior art. The preparation method comprises the steps of preparation of a culture medium, activation of strains, inoculation and culture, baking, puffing, crushing, mixing, granulating and tabletting, wherein the preparation of the culture medium comprises the steps of: A, preparation of a grain culture medium; B, preparation of a slant culture medium; C, preparation of a shake flask culture medium; D, preparation of a fermentation tank culture medium. The preparation method can be widely used in the processing of the ganoderma lucidum mycelium slices.

The invention discloses an active safeguard system and method for a floating-roof oil tank. Carbon dioxide gas serving as an inerting agent is filled into an annular spaced formed among the primary and secondary seals as well as tank walls of the floating-roof oil tank, the oxygen content and combustible mixed gas content in the annular space are controlled within a specified range, and the original dangerous space of fire disaster is turned into an inert safeguarding space which is prevented from explosion and combustion. The invention has the following advantage: the problem that the floating-roof oil tank is susceptible to oil gas explosion caused by lightning strike, static and the like in the annular space is solved.

The invention discloses a polishing solution for a sapphire substrate, and relates to the technical field of preparation of polishing materials. The polishing solution is prepared from the following active ingredients in percentage by weight: 90-95% of silica sol, 0.05-2% of polishing accelerator, 0.05-3% of complexing agent, 0.05-3% of pH regulator, and the balance of deionized water. The polishing solution has the characteristics of being high in removal rate, good in polishing effect, easy to clean, low in cost and the like, and is applicable to the polishing of sapphire substrate materials.

The invention relates to a preparation method of an all solid waste and upper flow regime paste-like filling material. Ferrosilicoaluminum-based solid wastes and calcium sulfate-based solid wastes, which are used as raw materials, are subjected to raw grinding, homogenization, firing and clinker grinding to produce a matrix material, and the matrix material is blended with filling aggregates, a fine-grained material, a regulator and wastewater to prepare the paste-like filling material. The method achieves the preparation of the paste-like filling material by recycling industrial solid wastes.The material is prepared from a liquid component A and a liquid component B, wherein the component A is composed of the matrix material and wastewater, and is a slurry formed by stirring and mixing,and the component B is composed of the filling aggregates, the fine-grained material, the regulator and the wastewater, and is a slurry formed by stirring and mixing. The paste-like filling material prepared from multiple solid wastes has excellent properties upper flow regime, early strength, fast hardness and low bleeding rate. The preparation method has the advantages of reasonable utilizationof the industrial wastes, great consumption of the industrial solid wastes, reduction of environmental impact, construction of the environment-friendly society, and easiness in preparation.

The invention discloses a method for preparing a modified aliphatic water reducing agent. The water reducing agent is a high-performance water reducing agent synthesized by taking acetone, formaldehyde and sodium metabisulfite as main raw materials and assisting with a proper amount of active agent and accelerating agent under certain conditions. The method comprises the following steps that: weighed tap water, sodium metabisulfite, sodium hydroxide and acetone are added into a four-mouth boiling flask with a reflux condenser tube, a thermometer and a stirrer, and are mixed evenly, then an accelerating agent, namely azodiisobutyronitrile is added into the flask, the temperature is increased, and the thermal insulation is performed after a sulfonation reaction; and the formaldehyde is dripped after the sulfonation reaction is finished, and the dripping speed is controlled. An acrylic acid active agent is added into the obtained product to obtain the modified aliphatic water reducing agent. The method is simple, is easy for industrialized production, reduces production cost, improves working performance (comprising the water-reducing rate and the flowability, workability, water retention property, plasticity retention performance and compressive strength of prepared concrete), and has obvious economic benefit and social benefit.

The invention provides a method for reshaping and beautifying by using tissue engineering fat regeneration technology, which is applicable to plastic surgery and reshaping and beautifying and belongs to the field of tissue engineering. The method comprises the following technical routes: directly extracting mesenchyme matrix cells with multiple differentiation capabilities from fatty tissues of a patient, culturing and propagating the mesenchyme matrix cells in vitro, wrapping a specific amount of cells and other necessary components in a hydrogel stent material, and implanting the hydrogel stent material into the corresponding part in the body of the patient. The cells are grown into fatty tissues along with degradation and absorption of the stent material so as to perform regenerative repair on the soft tissue defect of the patient. The method has the advantages that the cells of the patient do not bring immunological rejection to the patient, and the regenerative repair effect is safe, natural and durable because the used hydrogel stent material is finally degraded and absorbed in the body of the patient.

The invention discloses a fireproof high-molecular compound colloid material for coal mines, which belongs to fireproof materials. The fireproof high-molecular compound colloid material is compounded from 40-100 portions of high-molecular compound and 52-98 portions of an inorganic material, wherein the high-molecular compound is polyacrylate, or is composed of 40-55 portions of polyacrylate, 0-30 portions of carboxymethyl cellulose and 0-15 portions of polyacrylamide; the inorganic material is composed of 30-50 portions of bentonite, 12-18 portions of alumina shale powder, 10-20 portions of kaolin, 0-5 portions of attapulgite and 0-5 portions of clay; and the fineness of each raw material is less than 120 um. The preparation method of the colloid material comprises the following steps: mixing the high-molecular compound for 3-5 minutes; and after respectively spraying the inorganic material on a dry mixer, sufficiently and uniformly mixing the 8 materials for 8-10 minutes. The colloid material has the advantages of high water content, high moisture retention, high heat absorption capacity, quick fireproof effect taking, favorable effect, low possibility of afterburning and low composite cost, and is suitable for preventing and controlling fire for the spontaneous combustion and inflammation laws of different types of coal; and the downhole operation is simple and safe.

The invention discloses a hydraulic structure, which comprises a soil foundation and a water body impermeable and ventilated structure supported by the soil foundation, wherein the water body impermeable and ventilated structure comprises a waterproof ventilated particle layer which is positioned on the soil foundation and has the waterproof ventilated particle diameter of 20 to 3,500 microns, the compactedness of over 90 percent and the thickness of at least 1cm. The impermeable and ventilated structure of the hydraulic structure prevents water leakage depending on the principle of enhancingthe surface tension of the water so as to fulfill the aim of impermeability, and simultaneously reduces the surface tension of gas so as to make the gas easily pass through the waterproof ventilated particle layer. Therefore, the impermeable and ventilated structure has dual functions of impermeability and ventilation. Because the waterproof ventilated particle layer consists of impermeable particles, the hydraulic structure has liquidity, can automatically repair the soil foundation or cracks caused by crustal movement, can be communicated with atmosphere and can effectively improve the ecological environment of the water body.

The invention belongs to the field of cell biology, relating to a cell preserving fluid and a preparation method and use thereof. Concretely, the cell preserving fluid comprises a fixing agent, a fixing agent assistant, an anticoagulant, a cushion fluid and an ionic strength maintenance agent. The cell preserving fluid is characterized in that the content of the anticoagulant is 0.01% to 1.5%(w / w); the content of the ionic strength maintenance agent is 0.01% to 1%(w / w); and the cell preserving fluid does not contain a disulfide bond open reagent. The cell preserving fluid can effectively preserve cell DNA (deoxyribonucleic acid) and virus DNA infecting the cell, is convenient to collect the cast-off cells and extract DNA and can give attention to storage of the cell structure. The invention also relates to the preparation method and the use of the cell preserving fluid. The invention also relates to a kit and a method for detecting HPV (Human Papilloma Virus) or HPV DNA.

The present invention provides a shoulder pad for use in a contact sport, such as football, hockey or lacrosse. The shoulder pad includes a pair of arch members, each having an upper portion, a front portion depending from the upper portion, and a rear portion depending from the upper portion. The shoulder pad further includes at least one side pad assembly having an epaulet and a shoulder cap, wherein the shoulder cap overlies the wearer's shoulder region and the epaulet overlies both the arch member and the shoulder cap. The side pad assembly is operably secured to the body arch member by a fastening assembly that includes a flexible single band. Unlike conventional designs, the single band secures both the epaulet and the shoulder cap to the upper portion of the arch member. The shoulder pad further includes a pair of interior pad assemblies wherein each interior pad assembly is removably connected to an arch member. The interior pad assembly is an integrated unit formed from a front pad, an intermediate pad, and a rear pad joined together to form distinct air management chambers.

The invention provides an arsenic containing wastewater treatment method.The arsenic containing wastewater treatment method includes steps: (1) adding a ferrous salt and an oxidizing agent into arsenic containing wastewater to obtain a solution A; (2) adding a ferric salt into the solution A, controlling a pH value of the arsenic containing wastewater to be 8-12 to obtain a solution B; (3) adding an organic flocculating agent and an inorganic flocculating agent, stirring, standing, and performing primary solid-liquid separation to separate a residue phase from a liquid phase.The arsenic containing wastewater treatment method has the advantages of low equipment requirement, simple technical process and low cost, the arsenic content of the treated wastewater completely reaches the national industrial wastewater discharge standards, residues of the treated wastewater are stable, and further hazards of arsenic toxicity are reduced.