1589results about How to "Quality controllable" patented technology

The present invention is directed to a system, including apparatus and architecture, and method for providing scheduled and ad hoc voice over IP conference services having enhanced quality and reliability. The system uses an overlay network of geographically distributed conference servers working simultaneously and collaboratively to host a given conference session. Multiple conference servers simultaneously and collaboratively perform the necessary audio mixing. The voice routing path is established and controlled within the overlay network and supports conference services across different conference service providers.

The invention discloses a lightweight wall plaster which comprises the following components by weight percent: 65-90% of inorganic cementing material, 5-30% of lightweight aggregate, 0-30% of filler and 0-10% of functional additive, wherein the inorganic cementing material is a desulfurized plaster or a building plaster. The lightweight wall plaster is a single-component dry mixed material produced by a factory and can be used on a construction site by only adding water for stirring, the lightweight wall plaster has a certain thermal insulation function and excellent fire prevention performance, the bonding performance is good, and the compressive strength is high, thereby being capable of replacing the traditional plastering mortar to be plastered on inner sides of external walls, partition walls, room separating walls, ceilings and other occasions and further improving the thermal insulation performance of wall bodies.

The invention discloses a lightweight leveling mortar material for a variety of wall surfaces and floors inside and outside buildings, and the lightweight leveling mortar material comprises the following components by weight percent: 65-90% of inorganic cementing material, 5-30% of lightweight aggregate, 0-30% of filler and 0-10% of functional additive. The lightweight leveling mortar material is a single-component dry-mixed material produced by a factory and can be used on a construction site by only adding water for stirring. The lightweight leveling mortar has a certain thermal insulation function and excellent fire prevention performance, the bonding performance is good, and the compressive strength is high, thereby being capable of replacing the traditional mortar to be plastered on a variety of wall surfaces and floors of buildings and further improving the thermal insulation performance of wall bodies.

The present invention is directed to a system, including apparatus and architecture, and method for providing scheduled and ad hoc voice over IP conference services having enhanced quality and reliability. The system uses an overlay network of geographically distributed conference servers working simultaneously and collaboratively to host a given conference session. Multiple conference servers simultaneously and collaboratively perform the necessary audio mixing. The voice routing path is established and controlled within the overlay network and supports conference services across different conference service providers.

The invention relates to compound thermal insulation plastering material for external wall, which consists of a compound cementing material and a lightweight aggregate. The compound cementing material consists of cement, active admixture, lime powder, promoter, surfactant, anti-crack and waterproof agent, water retaining agent, flame retardant, re-dispersible emulsion powder, alkali-resistance fiber and coal flying ash cenosphere; the lightweight aggregate consists of EPS grain and expanded perlite. The invention has the advantages of low density, thermal performance, high strength, good impact resistance, bond strength and low shrinkage. The compound cementing material adopts a plurality of polymeric cementing materials, allows the insulation material to have good bond performance and simultaneously ensures falling and slipping resistance performance. The invention has good water resistance and high softening coefficient. By using cement-based cementing material as main material and organic reinforced material and waterproof component as auxiliary materials, the invention has a hydrophobic rate more than 98 percent and a softening coefficient more than 0.7. The invention can save energy and protect environment. A great deal of industrial waste residue is used in the materials, which can save a great number of energy, realize resource utilization of the waste residue and is in favor of environmental protection.

The invention discloses a preparation method for rate type artificial graphite negative-pole material with high energy density. The preparation method comprises the following steps: subjecting raw material cokes to coarse breaking and pulverizing directly or coarse breaking, high-temperature modifying and then pulverizing, and carrying out reshaping treatment, so as to obtain primary granules A; kneading the primary granules A and an organic carbon source, then, carrying out dynamic thermal coating, and carrying out screening, so as to obtain primary granules B; uniformly mixing the primary granules A with a binder, then, subjecting the mixture to granulating in a granulating reactor, and carrying out screening, so as to obtain secondary granules C; subjecting the primary granules B and the secondary granules C to graphitizing separately, and carrying out screening, so as to obtain graphitized primary granules B and graphitized secondary granules C; and uniformly mixing the graphitizedprimary granules B and the graphitized secondary granules C proportionally, and carrying out screening, thereby obtaining a finished product. The preparation method is simple in process and easy in quality control; and by applying the artificial graphite negative-pole material prepared by adopting the method to a lithium-ion battery, the lithium-ion battery is large in capacity, good in cycle andexcellent in quick charging performance.

The invention relates to a buckling-restrained brace member, in particular to a combined steel pipe-encased concrete type buckling-restrained brace member. The invention solves the problems that the processing cost of the in-line brace inner core in the existing buckling-restrained brace member is high, the reliable low-cycle fatigue performance cannot be ensured, the cast-in-situ construction and the vibrating construction of mortar or concrete are apt to cause special soft material plates to be displaced and non-binder material plates to be locally damaged, and the production cycle is long. Technical scheme one: the in-line brace inner core and two first backing plates are clamped between two rectangular steel pipes filled with mortar or concrete blocks, each first backing plate is respectively and fixedly connected with outer walls which face to the two rectangular steel pipes and each backing plate is fixedly connected with an external restraining member; and technical scheme two: the in-line brace inner core and third backing plates are clamped between two rectangular steel pipes filled with mortar or concrete blocks, and the third backing plates are connected with pairs of bolt seats through a plurality of bolts. The combined steel pipe-encased concrete type buckling-restrained brace member can be used in the side force resisting component in the field of building structure engineering.

A solar panel back film comprises a PET film matrix with the thickness of 100-350 micrometers. Fluorine-containing polymer coatings of 15-30micrometers cover the two faces of the matrix, and the fluorine-containing polymer coatings are formed by mixing raw material components according to a proportion to obtain mixed emulsion and coating the PET film matrix by the mixed emulsion which is swollen under the temperature between 80 DEG C and 200 DEG C, wherein raw materials of the fluorine-containing polymer coatings comprise, by mass, polyester PET powder, fluorine-containing resin, solvent, a cross-linking agent, padding and ethylene glycol. The polyester PET powder is polyester PET powder with grain size smaller than 25 micrometers, wherein the polyester PET powder is formed by smashing precipitate obtained by dissolving in phenol-carbon tetrachloride mixed solvent. The fluorine-containing resin is fluorine-containing macromolecule resin. The solar panel back film is easy to process, tearing resistant and superior in electrical insulation performance and weather fastness.

The invention relates to a prefabricated shear wall body vertical connection construction method, in particular to an assembly-type residential shear wall structural wall body vertical connection construction method, which is characterized in that: when a prefabricated lower layer wall body is connected with a prefabricated upper layer wall body, supporting leg parts on two ends of the bottom part of a shear wall body are connected with each other through a reinforced bushing anchoring grouting method, and preformed steel reinforced parts on the middle part of the shear wall are connected with each other through a binding and overlapping method. When an upper layer wall body is prefabricated, anchoring connection bushings are respectively embedded on the supporting leg parts on two ends of the shear wall, the middle part of the shear wall is produced into a feeding passage for pouring concrete at a later period by embedding a steel bushing, self-compacting concrete is poured towards the middle part of the shear wall from a feeding port on the top part of the feeding passage, and high-strength grouting materials are fulfilled into the anchoring connection bushing at high pressure through a high-pressure grouting machine. Due to the adoption of the method, the quantity of the connection bushing can be reduced, the cost can be saved, and the connection quality and the connection speed can be improved. The weaknesses of the traditional shear wall vertical connection installation process that the cost is high, the construction speed is slow, the quality is difficult to control, and the like can be overcome.

A process for preparing VO2 nanoparticles includes such steps as proportionally adding V2O5 and oxalic acid to reactor, adding water, stirring at 40-70 deg.C while reaction, evaporating to obtain solid vanadium oxalate, vacuum heating to 350-500 deg.C, holding the temp for 20-40 min for thermodecomposing, and cooling. It is possible to add MoO3 or N5H37W6O24 for preparing the doped product.

The invention discloses a specific-binding PD-1 and / or CTLA-4 dual variable domain immunoglobulin (DVD-Ig) obtained by modifying anti-PD-1 and CTLA-4 antibodies through adopting a molecular biology method. An anti-PD-1 antibody variable domain is intramolecular and an anti-CTLA-4 antibody is extramolecular, the anti-PD-1 antibody variable domain is extramolecular and the anti-CTLA-4 antibody is intramolecular, and two structures respectively keep the combination characteristics of PD-1 and / or CTLA-4 molecules. The anti-CTLA-4 and PD-1 dual variable domain immunoglobulin has potential tumor treatment values.

The invention relates to carbon paper and a preparation method thereof and particularly relates to special high-performance carbon paper for a gas diffusion layer of a fuel cell and a preparation method of the carbon paper. By taking short carbon fibers, plant fibers, heat bonding fibers and carbon black as raw materials, the carbon paper is prepared by the following steps: defibering, pulping and proportioning; then carrying out papermaking by adopting a wet-method papermaking process; and carrying out waterproof pigment coating treatment. The ratios of all the raw materials are as follows in parts by weight: 65-75 parts of the short carbon fibers, 10-15 parts of the plant fibers, 10-15 parts of the heat bonding fibers and 0-10 parts of the carbon black. According to the special high-performance carbon paper for the gas diffusion layer of the fuel cell and the preparation method of the carbon paper, a production process combining wet-method formation, hot pressing and coating is adopted and has the characteristics of simple process flow, easiness for controlling product quality, environment-friendly production process and the like; the material ratio of each raw material can be accurately controlled in the production so as to be good for controlling the product quality.

The invention discloses an extracting method of tea seed oil from tea seed, which comprises the following steps: adopting tea seed core as raw material; grinding to add water to stir into slurry; adding amylase or / and cellulose enzyme to enzymolyze; separating to obtain the product. The invention improves the oil-out rate more than traditional extracting method, which remains more non-oil nourishing element.

A surface mounted LED packaging structure based on a silicon substrate includes the silicon substrate, an LED chip, an annular convex wall and a lens. The silicon substrate has an upper surface of planar structure and without grooves. An oxide layer covers the upper surface of the silicon substrate. Metal electrode layers are arranged in the upper surface of the oxide layer, and the upper surfaces of the metal electrode layers are arranged with metal bumps. Vias through the silicon substrate are provided under the metal electrode layers. An insulating layer covers the inner wall of the vias and a part of the lower surface of the silicon substrate. A metal connection layer covers the insulating layer surface within the vias. Two conductive metal pads are respectively arranged under the lower surface of the silicon substrate and insulated from the silicon substrate. A heat conduction metal pad is arranged on the lower surface of the silicon substrate. The LED chip is flip-chip mounted on the silicon substrate. The annular convex wall and the lens cause the LED chip and the metal electrode layers therein to be isolated from environment. The structure of the present invention has its advantages of good heat dissipation effect and small volume, while packaging without gold wires makes the structure highly reliable and achieves large-scale production of wafer level, resulting in the reduction of the packaging cost.

A curcumin medicine for preventing and treating cancer and cardiovascular and cerebrovascular disease includes a pre-concentrated curcumin liquid in the form of softgel and prepared from the precursor of curcumin and emulsifier and a fatty curcumin emulsion prepared from the precursor of curcumin, emulsifier, antioxidant, isotonic regulator, stabilizer, pH regulator, and the water for injection. It can also provide energy to the patient.

The invention discloses a construction method of a circular reinforced concrete chimney cylinder wall, and a hydraulic sliding mould device, wherein a hydraulic sliding mould construction method is a rapid construction method of dynamically and continuously molding concrete; loads such as an operation platform and a template are completely supported on a support rod which is stabilized by low-age concrete and has small rigidity; the operation platform and the template are driven to climb along the cylinder wall by a hydraulic jack; and the hydraulic jack climbs on the support rod by an oil path system. The hydraulic sliding mould construction employing the sliding mould as an external cylinder wall and building a lining adopts an ''outside sliding and inside building'' construction process featured by synchronously constructing the external cylinder wall and the lining. The hydraulic sliding mould construction is featured by dynamic continuous construction, having fast construction speed in comparison with mould reverse, symmetrically distributing the hydraulic jack on the circumference of the chimney cylinder wall, forming the template by combining a fixed template with a moveable plate and a contracting and separating template, convenient to assemble and dismount as well as regulate the diameter and the circumference of the combined template structure, capable of gradually decreasing the diameter and the circumference of the combined template structure along with the diameter change of the chimney diameter. The hydraulic sliding mould construction is advantaged in few invested construction operators and convenient management.

The invention relates to desulfurized gypsum based antistatic self-leveling mortar and its preparation method. Adopting calcined desulfurized gypsum as the main raw material, the desulfurized gypsum based antistatic self-leveling mortar comprises the following components by weight: 25-45 of desulfurized gypsum, 5-10 of slag powder, 3-10 of fly ash, 5-12 of portland cement, 15-25 of quartz sand, 15-25 of steel slag sand, 0.03-0.2 of modified carbon fiber, 0.5-2.0 of redispersible emulsion powder, 0.02-0.07 of cellulose ether, 0.10-0.25 of a water reducer, 0.1-0.4 of an antifoaming agent, 1.2-2.5 of an early strength agent, 0.02-0.06 of a retarder, and 0.002-0.005 of a carbon nanotube. The desulfurized gypsum based antistatic self-leveling mortar has good antistatic performance, bonding property, wear resistance, as well as high compressive strength, and overcomes the defect of poor water proofness of gypsum based materials. By utilizing a lot of industrial solid waste, the self-leveling mortar of the invention has the advantages of environmental protection, energy saving, and low cost, etc., and can be applied in various building ground projects with requirements for electrostatic protection and levelability.

The invention discloses a method for preparing a composite Ag-Ti oxide antibacterial film by magnetron sputtering, mainly comprising the steps of: 1) carrying out pretreatment on the surface of film carrier base material, sequentially washing by more than two organic solvents and deionized water under the condition of ultrasonic wave, the washing time by using the organic solvents and the deionized water being 5-15min, and finally, drying at 15-85 DEG C for 0.5-3h under the vacuum condition; 2) arranging a metal Ti target and a metal Ag target on a magnetron sputtering device, taking argon as working gas, filling reaction gas containing oxygen into a vacuum chamber of the magnetron sputtering device, sputtering the metal Ti by an intermediate frequency magnetron sputtering power supply of the magnetron sputtering device, sputtering the Ag by the magnetron sputtering power supply, and obtaining Ag-Ti metal oxide composite coating film. The method is simple and efficient, and the obtained film has high uniformity, good dispersibility and strong adhesive force, so as to be taken as antibacterial material which has the advantages of broad spectrum, high efficiency, permanent antibacterial performance, safety and environmental protection.

Disclosed is construction technology of high polymer material post-grouting squeezed cast-in-place pile. The technology includes that a conventional bored pile is adopted for forming a hole, a grout filling bag is arranged on a reinforcement cage with a designed depth, the reinforcement cage sinks, concrete is cast, high polymer materials are in pressure grouting for the filling bag at a designed position by the aid of a grouting line after the pile building concrete is initially set, and a high polymer material post-grouting squeezed branch and an expanded-base grouting pile are formed. Construction process of a squeezed branch pile and technology of a post-grouting cast-in-place pile are optimized by a method, and problems of squeezing hole collapse of a traditional squeeze branch pipe, excessive scum at a pile end and the like are avoided. In addition, a large quantity of expenditure and construction period can be saved, the high polymer grouting technology is favorable for environmental protection and energy economization, and the quality is easy to control. Besides, the method is simple in construction process, high in operability, convenient in quality control, and remarkable in economic benefit and the effect of management of a soft soil foundation.

The invention discloses a total bufogenin extract with antitumor function and also discloses a preparation method of the extract and application thereof in the preparation of antitumor medicines. The total bufogenin extract of the invention is prepared by organic solvent extraction, column chromatography separation and purification of dried toadskin; the content of total bufogenin is over 80 percent, wherein the content of resibufogenin is over 12 percent, the content of cinobufagin is over 4 percent, and the content of bufotalin is over 10 percent. Compared with the prior art, the invention eliminates bufotenine alkaloid which has irritation, is easy to cause hypersensitivity but has no antitumor activity, efficiently collects the effective part of total bufogenin which has significant antitumor activity, therefore pharmacological action is stronger, the clinical curative effect is higher and the toxic and side effect is lower. The total bufogenin extract can be prepared into various pharmaceutical preparations for clinical application, therefore the invention has the functions of killing tumor cells, inducing differentiation and apoptosis of tumor cells, inhibiting the neovascularization of tumor cells and lowering the neoplasm metastasis rate, etc.

The invention discloses a reinforcement method and a reinforcement structure for treating railway soft soil roadbed settlement overweight before operation. The reinforcement structure mainly consists of five parts, namely a main bearing structure system, a reinforced cushion layer structure system, a foundation bed drainage system, a settlement observation system and a reserved grouting system. The technical problems that the existing roadbed is greatly damaged, the construction period is long, the construction property is low, the quality is difficult to control and the problem that the soft soil roadbed settlement overweight is caused in the conventional technical scheme are effectively solved.

The invention discloses an impact-resistant combined anti-pressure supporting system which is characterized by comprises a three-grade supporting system; and the impact-resistant combined anti-pressure supporting system has the advantages that: (1) by an optimized three-grade supporting manner, the maintenance amount of engineering roadways is reduced, the coal mining rate and the recovery ratio of a working face are increased, the safety coefficient is enlarged, and the comprehensive benefits of a mine are increased; (2) by applying a combined supporting system technology, the deformation of the roadway is effectively controlled when the working face is influenced by the ground pressure; and when the rock burst generates during production, the system plays a role of impact-resisting, realizes shrinkage and buffering changes and protects the safety of equipments and operators; and (3) according to the supporting system during recovery, dynamic alternatively circulative operation is realized, thus the purposes of resisting impaction, removing pressure and solving danger are realized, the construction process is simplified, various costs are saved, the quality is easy to control, the economic benefit is remarkable, the social benefit is also gained at the same time, and the competition among enterprises is improved.

The invention provides a preparation process for strong-flavor tea-seed oil. The preparation process comprises the following steps: firstly, crushing tea-seed dregs; then, adding water of certain volume to be mixed with the crushed tea-seed dregs, adding alkaline protease of certain amount to the mixture to carry out enzymolysis for certain time, carrying out enzyme deactivation to obtain enzymatic hydrolysate, adding leached and refined tea-seed oil to the enzymatic hydrolysate, heating the mixture to 130-145 DEG C, and mixing the mixture for reaction for 30 minutes; and finally, cooling and filtering the mixture to obtain the strong-flavor tea-seed oil. Through detection, the strong-flavor tea-seed oil prepared by the preparation process disclosed by the invention has color and luster of color yellow 30 and color red 2.1, an acid value of 0.4 mg of KOH / kg, and a peroxide value of 7.8 mmol / kg, thus reaching the standard of national first-level edible oil. Moreover, the extraction rate of the tea-seed oil under the condition is 38.71%, which is higher than the extraction rate in the traditional method by 9.85%.

An automatic indoor culture system for aquatic products features that the culture pool is stepped for staged cultures, the water for culture is treated by a circulating water treating system, the water quality is monitored and the optimum state is controlled by a water monitor system, and beside, the bait is uniformly distributed by an overlead moving throwing equipment. Its advantages are high density and quality, high survival rate and high output.

The invention belongs to the technical field of building construction and in particular relates to a fully-prefabricated structure and a construction method thereof. The fully-prefabricated structure comprises a top plate, peripheral wall boards and base plate concrete precast members, wherein an assembly clearance joint is preserved between every two adjacent concrete prefabricated members; joints connected with the concrete prefabricated members in parallel adopt L-shaped stagger-jointed lapping; in addition, the prefabricated wall panels are connected by embedded split bolts or connected by grouting and casting of reserved steel bars and matched holes; vertical joints between the prefabricated wall panels and the top plate and the base plate adopt grouting and casting connection through the reserved steel bars and the matched holes; water-expandable rubber water-stop strips are arranged in the reserved assembly clearance joints and are grouted with cement-based grouting materials; sealants are arranged on openings in two sides of the reserved assembly clearance joints. The fully-prefabricated structure and the construction method thereof disclosed by the invention have the advantages that the construction speed is high, the quality is easy to control, and materials such as a template scaffold are saved; the members are good in appearance quality and durability; field wet operation is reduced, so that environment friendliness is facilitated; the fully-prefabricated structure and the construction method thereof are suitable for construction of single-storey assembled buildings and multi-storey assembled buildings having no seismic requirements.

The invention discloses a long-chain recombination human bone pattern generating protein-2 and preparing method and application, which is characterized by the following: utilizing gene project technique to grow the protein in the expressing system of escherichia coli and bacillus subtilis; adopting human bone sarcoma cell mRNA to do reverse transcription to obtain the cDNA as form; augmenting nucleotide sequence of entire 114 amino acids naturally from carboxyl end; adding a segment of nucleotide in front of the first codon of primer 5' end; increasing a segment of polypeptide at N end corresponding to amino acid sequence; obtaining long-chain rhBMP-2 gene with molecular weight at 30KD and purity over 95%.

The invention discloses an aerogel composite fabric utilizing aqueous adhesive and a preparation method thereof. The composite fabric is characterized in that a fiber reinforced aerogel material is adopted as a core layer, a layer of fabric respectively covers the upper surface and the bottom surface of the core layer, and the core layer is bonded with the fabric through the aqueous adhesive. The fiber reinforced aerogel material is subjected to adhesive clearing and purging treatment, after the aqueous adhesive covers the top and the bottom of the fiber reinforced aerogel material, a layer of fabric respectively covers the top and the bottom of the fiber reinforced aerogel material, and the aerogel composite fabric is trimmed and packaged after being pressurized through a hot roll. The prepared aerogel composite fabric has the advantages of excellent heat insulation property, good humidity permeability, good softness, no dust leakage and the like and can be applied to cold-proof or fireproof tents, sleeping bags, ground mats, shoes, shoe pads, clothes and hats as well as heat insulation interiors of cars, airplanes, ships and trains, so that the application range of the aerogel composite fabric is greatly enlarged; moreover, the process is simple, the quality is easy to control, and mass production can be realized.

The invention belongs to the technical filed of medicines, and concretely relates to optically pure benzyl-4-chlorophenyl C-glucoside derivatives represented by formula (II) and formula (III), a method for preparing the above compounds and intermediates thereof, a medicinal preparation and a medicinal composition containing the compounds, and an application of the optically pure benzyl-4-chlorophenyl C-glucoside derivatives in the preparation of medicines for treating and / or preventing insulin-dependent diabetes, non-insulin dependent diabetes, insulin resistance diseases or obesity, various diabetes and relevant diseases as a sodium-glucose cotransporter (SGLT) inhibitor.

The present invention relates to a lansoprazole freeze-dried powder injection and its preparation method. Said lansoprazole freeze-dried powder injection contains ethylene diamine tetraacetic acid (EDTA) and / or its salt, and is made up by using active component lansoprazole, ethylene diamine tetraacetic acid and / or its salt, stabilizing agent, excipient, pH regulator and injection water through a certain preparation process. Besides, said invention also provides the concrete steps of said preparation process.

The invention relates to single-component inorganic heat-insulating mortar which is prepared from the following components in parts by weight: 400-500 parts of cement, 400-450 parts of expanded closed cell perlite, 100-200 parts of fly ash, 5-10 parts of redispersible emulsion powder, 10-30 parts of sepiolite fiber, 2-3 parts of cellulose ether, 10-20 parts of gypsum and 1000-1200 parts of water. The inorganic heat-insulating mortar has low heat conduction coefficient, good thermal insulation performance, high compressive strength and bonding strength, excellent mechanical performance, good construction workability, simple operation and high construction efficiency; and single-component production is carried out by adopting the process of the invention, the quality is easy to control, and the invention is beneficial to on-site civilized construction.