874results about How to "Liquidity" patented technology

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 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 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.

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 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 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 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.

The invention discloses a nanometer oxide powder preparation method, which is characterized in that: melting the pure metal or the alloy made from two or more than two metals in a certain proportion; putting the fused metal into current voltage through the melter, reactor and the powder collector, voltage ranging from 50 to 1000 V, current ranging from 5 to 2000 A; atomization, gasification and oxidation under resistance heat, high magnetic field and oxidation, after suddenly cooling treatment single nanometer oxide is formed; the reaction atmosphere is pure oxygen, oxygen-argon mixture, oxygen-nitrogen mixture, atmosphere or stream, CO2 and other mixed gas; fast condensation refers to condensation by liquid nitrogen, condensation by cooling water, high-speed gas condensation, high-speed liquid-gas condensation and high heat conduction metal condenser condensation. The nanometer oxide powder preparation method has the advantages of high efficiency and high capacity. The product has the advantages of high purity, high crystallization, sound dispersion and strong fluidity.