1417results about How to "good stability" patented technology

The present invention provides a nano-micellar preparation containing vinca alkaloids antitumor agent for intravenous injection, which cincludes a therapeutically effective amount of vinca alkaloids antitumor agent (vinblastine, vincristine, vindesine and vinorelbine), a phosphatide derivatized with polyethylene glycol, together with pharmaceutically acceptable adjuvants. The preparation is prepared by encapsulating the medicament with a nano-micelle to obtain the nano-micellar preparation containing vinca alkaloids antitumor agent for injection. The vinca alkaloids antitumor agent and the phosphatide derivatized with polyethylene glycol form a nano-micelle with a highly uniform particle size. In the micelle, the hydrophobic core of encapsulated medicament is surrounded by polyethylene glycol molecules to form a hydrophilic protective layer, so that the medicament is prevented from contacting with the enzymes and other protein molecules in blood and being recognized and phagocytozed by reticuloendothelial system in body, and the circulation time in vivo of the micelle is prolonged.

A screw-driven lifting platform, includes a lifting portion and a transmitting portion, which is characterized in comprising a base, a left-and-right screw thread rod, a left and a right group (two group in total) of X-shaped connecting rods and a horizontal lifting platform, wherein two groups (a left group and a right group) of the X-shaped connecting rods are respectively provided on left and right end portions between the base and the horizontal lifting platform, fixed ends of the X-shaped connecting rod are respectively hinged on the base and the horizontal lifting platform, movable ends of the X-shaped connecting rod are connected with the left-and-right screw thread rod, when the left-and-right screw thread rod rotates, the movable ends of the left and right groups of the X-shaped connecting rod are driven to move, so as to realize lifting and lowering the horizontal lifting platform.

The invention provides an aluminum oxide carrier and a preparation method thereof. The aluminum oxide carrier takes a mixture prepared by mixing pseudo-boehmite powder prepared by the carbonization method and pseudo-boehmite powder prepared by the aluminum sulfate method according to a weight proportion of 1:0.1 to 5 as a precursor and a complex acid as a peptizing agent; substances such as zirconium, titanium, silicon, alkali metals, alkaline-earth metals, rare-earth metals, carbon black, and the like, are added during kneading process; then the aluminum oxide carrier is obtained after forming, drying and roasting. The physical properties of the carrier are as follows: pore volume is 0.4 to 1.2ml/g; specific surface area is 180 to 370m<2>/g; pores with the diameter being more than 100nm accounts for more than 90 percent of total pore volume; the amount of B acid is 0.1 to 0.3mmol/g; the amount of L acid is 0.2 to 0.5mmol/g. The carrier is especially applicable to the preparation of 1, 4-butanediol catalysts in the two-stage hydrogenation catalytic synthesis of 1, 4-butynediol.

The invention discloses digital inkjet thermal transfer printing water-based ink for textiles and preparation method of the ink. The ink comprises the following raw materials in mass ratio: 5-15 parts of disperse dye, 5-10 parts of a dispersing agent, 0.1-0.5 part of a wetting agent, 5-25 parts of a cosolvent, 0.02-0.05 part of a preservative, 0.1-0.3 part of an antifoaming agent and 50-70 parts of deionized water. The digital inkjet thermal transfer printing water-based ink is prepared by using a method of effectively dispersing the disperse dye via a dispersing system and carrying out combined dispersion via a mechanical sand grinder and an ultrahigh-pressure homogenizer, and is suitable for the thermal transfer printing of textiles and the thermal transfer printing of plate materials such as aluminum plates coated with polyester; and the prepared water-based ink has the advantages of small particle size, uniformity in distribution, good stability, no nozzle blocking, rapidness in drying, bright color, clear patterns, high transfer rate, low cost and the like.

A flowable aerated composition is provided which comprises hydrophobin and a yield stress agent, the composition having a continuous phase viscosity, measured at a shear rate of 10 s⁻¹, of from 0.01 to 2000 Pa s, and a continuous phase apparent yield stress of at least 4 Pa.

The invention discloses a high-speed rotation testing machine and a method for testing the high-speed rotation strength performance of a rotor. The high-speed rotation testing machine comprises a test cavity, a rotor system which is accommodated in the test cavity and used for testing the test rotor, a driving system that drives the rotor system and a rotating speed control system that controls the rotating speed of the rotor system, wherein the driving system includes a driving motor and a speeder which is connected with the driving motor and drives the rotor system to rotate at a high speed, the rotor system includes a test rotor fixed part, a main shaft connected with the test rotor fixed part and driven to rotate by the speeder, and a damper which is sleeved outside the main shaft and supports the main shaft, the test cavity is equipped with a vacuumizing opening, a plurality of layers of containing rings is arranged in the test cavity and surround the rotor system, and the containing rings are connected through spacing blocks arranged at tail ends of the containing rings. The high-speed rotation testing machine uses a high-speed rotating rotor as a test object, the rotor is speeded up through the speeder system, the working condition of the rotor in high-speed rotation is simulated, and the performance requirement of high speed centrifugal load effect resistance of the rotor is tested.

The invention discloses a novel thermal insulation fireproof wall calcium silicate board and a preparation method thereof. The novel thermal insulation fireproof wall calcium silicate board comprises the following components in percentage by mass: 30-40% of quartz sand, 5-15% of portland cement, 25-40% of slaked lime, 3-5% of mica, 8-13% of vermiculite and 7-8% of wood pulp fiber. The preparation method comprises the following steps of: preparing raw materials by using all the components in percentage by mass; shredding paper; pulping; discharging pulp; forming; carrying out three-working-position operation; demoulding; autoclave curing; drying; and sanding to obtain the novel thermal insulation fireproof wall calcium silicate board. The novel thermal insulation fireproof wall calcium silicate board remains the favorable universality of a calcium silicate board and has an extremely low coefficient of heat conduction. The coefficient of heat conduction of the novel thermal insulation fireproof wall calcium silicate board provided by the invention is (31+273)K, 0.154W/mk; (100.5+273)K, 0.164W/mk.

The invention provides a method for performing induced synthesis on a stable MOFs (metal-organic frameworks) membrane by implanting homologous metal oxide particles into the surface of a macroporous carrier by virtue of a simple swabbing process, belonging to the field of new materials, and relating to a method for preparing the corresponding stable MOFs membrane by swabbing homologous metal oxide powder, introducing a growth crystal seed and a fixed connecting point for synthesizing the MOFs membrane on the surface of the macroporous carrier, and then performing induced growth. The method is characterized by comprising the following steps: introducing the homologous metal oxide powder into the surface of a macroporous plate-type or tubular carrier in advance by using the simple swabbing process, and then performing solvothermal growth to prepare continuous and dense MOFs membranes. The method provided by the invention has the effects and advantages that a universal method for preparing the MOFs membrane by using the macroporous carrier is provided, and the method is simple to operate in a preparation process, is high in repeatability and good in membrane stability, is suitable for amplified large-scale application, and has important industrial application values.

The invention relates to a water-soluble (Ultra Violet) curing ink and a preparation method thereof, and belongs to the technical field of environmental protection ink. The water-soluble UV curing ink comprises the following components by mass percent: 60 to 85% of silica sol modified water-soluble urethane acrylate prepolymer, 1 to 10% of photoinitiator, 5 to 15% of pigment, 5 to 20% of solvent and 0 to 1% of assistant. The water-soluble UV curing ink is environment-friendly, nontoxic, fast in curing rate, high in stability, excellent in ageing resistance and solvent resistance, outstanding in adhesive force and wear resistance and suitable for a plurality of printing modes, meets the production requirement, and can be widely applied to the surfaces of printing materials such as paper materials, wood materials, plastics, metals and glass.

The invention discloses a novel compound having a general formula discloses in the specification, a process for preparing the compound, and novel intermediate compound related in the compound synthesizing flow path. The compound provided by the invention can be used for preparing multiple pharmaceutical preparations for treating a plurality of diseases caused by virus infection.

The present invention relates to specific N^α-(menthanecarbonyl)amino acid amides of the formula (I):

and mixtures thereof and to the use of the specific N^α-(menthanecarbonyl)amino acid amides and mixtures thereof as physiological cooling active ingredients.

The present invention provides an electrochemical oxidation technique of waste water containing chlorobenzene compound, which is carried out in an electrocatalysis reaction tank, wherein a titanium-base bimetal lead oxide electrode modified by fluoro resin serves as the anode, a corrosion resistant plate serves as the cathode, an active beehive ceramic particle electrode is filled between the anode and the cathode, the waste water containing chlorobenzene compound serves as the electrolyte, a pulse direct current stabilized current power supply is adopted, thereby the chlorobenzene compound of the waste water is removed. The active beehive ceramic particle electrode is composed of Mn, Sn and Sb active component and a gamma-Al2O3 beehive ceramic carrier. The present invention has the advantages of compact equipment, excellent stability, low operating cost, easy operation and simple post treatment; besides, the present invention has a major market development prospect.

The invention relates to the field of lithium ion batteries, and discloses a lithium ion battery separation membrane and a preparation method thereof, and a lithium ion battery. The lithium ion battery separation membrane comprises a porous base film and a heat-resistant layer covering the surface of at least one side of the porous base film, wherein the heat-resistant layer contains a high-temperature-resistant polymer and inorganic nanoparticles, and the heat-resistant layer has a fiber network structure. The lithium ion battery separation membrane of the present invention has advantages ofhigh lithium ion conductivity, improved heat resistance and improved mechanical strength at the high temperature.

The invention discloses an L-polylactide filler for injection and a preparation method thereof. Active ingredients of the filler are L-polylactide particles, honeycomb HA and a synergist, the honeycomb HA is obtained by alcohol precipitation and drying of a water solution formed by mixing sodium hyaluronate high in molecular weight and sodium hyaluronate low in molecular weight in an alkaline condition, and the synergist is mannitol or a mixture of mannitol and aloe polysaccharide with a mass ratio of 1:0.05-0.12. The filler is simple to prepare, shorter in re-suspension time, long in validity period and more convenient to use.

The invention discloses a double-component organic silica gel for packaging of a large power IGBT (insulated bipolar translator) and a preparation method thereof. The organic silica gel is prepared by mixing a component A and a component B, wherein the component A is prepared by mixing the following components in parts by weight: 100 parts of vinyl silicone oil and 0.02-1 parts of platinum catalyst, the component B is prepared by mixing the following components in parts by weight: 70-90 parts of vinyl silicone oil, 10-30 parts of chain extender (end of which contains hydrogen silicone oil), 0.5-5 parts of cross-linking agent (side chain of which contains hydrogen silicone oil), 0.1-1 part of inhibitor, and 0.05-0.5 parts of antioxygen. When the double-component organic silica gel is used, the component A and the component B are stirred and mixed uniformly according to weight ratio of 1 to 1 so as to be solidified to obtain the organic silica gel. The organic silica gel takes silicone oil of high purity as raw material, and has good heat stability, low volatile matter, and high dielectric strength, thus meeting the use requirement of a large power IGBT module.

The invention provides a preparation method of room-temperature yoghourt. The preparation method comprises the following steps: mixing materials to obtain a mixed material solution; carrying out heat treatment on the mixed material solution under the temperature ranging from 110 DEG C to 140 DEG C until the thermotropy rate of whey proteins in the mixed material solution is up to or more than 89% to obtain a heat-treated material solution; inoculating lactic acid bacteria into the heat-treated material solution and fermenting to obtain a fermented material; sterilizing the fermented material. The room-temperature yoghourt prepared by the method is good in stability and has a fine and smooth mouth feel and a mellow flavor. The invention further provides the room-temperature yoghourt produced by the method.

The invention discloses a catalyst for synthesizing methyl formate by selective oxidation of methanol and a preparation method thereof. The catalyst is composed of active ingredients and a carrier, wherein the active ingredients account for 0.1%-10% of the catalyst by mass percent and comprise Au, Pd or Pt; and the carrier is an oxide A or B, the oxide A is any one of Al2O3, TiO2, ZrO2 and CeO2, and the oxide B is the oxide obtained by modifying the oxide A with a modifier WO3, MoO3, ZnO, MgO or NiO. The invention provides a preparation method of the catalyst. The preparation process is simple, the contents of the used noble metals are less, the used noble metals have high activity, and the method is suitable for the current common industrial production conditions and has good applicationprospects. The catalyst can be used for producing methyl formate by efficiently transforming methanol.

The invention provides a water-based diamond polishing solution. The water-based diamond polishing solution consists of the following components in percentage by weight: 0.01-10 percent of diamond micro-powder, 0.2-6 percent of a dispersing agent, 0.1-3 percent of a suspending agent, 0.1-5 percent of a pH adjusting agent, 0.1-0.5 percent of a sterilizing agent, 0.1-0.5 percent of a deforming agent, 2-50 percent of a suspension aid and 40-80 percent of deionized water. The invention further provides a preparation method of the water-based diamond polishing solution.

The invention belongs to the field of coal mining, and particularly relates to an overburden bed separation sectional isolation grouting-and-bashing coal seam mining complete stoping method. The overburden bed separation sectional isolation grouting-and-bashing coal seam mining complete stoping method comprises the following steps that 1, according to geological prospecting data, an overburden keystrata of a stope is determined; 2, the inclination length of a stope face is designed reasonably according to the actual coal seam occurrence range and the reserve volume of a mine, and it is ensured that breaking of the overburden main key strata cannot be caused due to the fact that mining is conducted under the length; 3, a coal pillar with the length of a working face is arranged between twosections in a spaced mode, namely one section is spaced, sectional jump mining is conducted, and the sections on the two sides of the coal pillar are mined firstly; 4, pushing mining is conducted onthe working faces of the two sections, meanwhile, parallel working is conducted, the coal pillar is not reserved, a preset bashing belt is built in a crossheading, close to one side of the coal pillar, of the working face of the coal pillar along the coal wall; and 5, stoping work of the middle section is conducted. According to the overburden bed separation sectional isolation grouting-and-bashing coal seam mining complete stoping method, roadway driving maintenance and the working face working environment are safer and healthier.

The invention discloses a method and device for generating a high-precision synchronous clock. The method is used for generating and outputting a second second impulse synchronizing with a first second impulse of a first clock source. The method comprises the steps of: comparing phase relations of the second second impulse and the first second impulse; regulating a frequency division factor according to the phase relations; and controlling the quantity of impulses of a crystal oscillator corresponding to the second second impulse according to the frequency division factor to output the second second impulse. The device comprises a phase comparing unit, a PID (Proportion Integration Differentiation) control unit and a synchronizing signal output unit. According to the invention, the frequency division factor of the crystal oscillator second clock is controlled through measuring the phase different between a GPS second clock and the crystal oscillator second clock, and a cumulative error of the crystal oscillator second clock is eliminated in real time, thus a high-precision second clock is generated. The invention has the advantages of good stability, high synchronism and simple implementation process.

The invention particularly relates to a double-channel optical performance testing device of an integrated waveguide modulator and a polarization crosstalk identification and processing method thereof and belongs to the technical field of measurement of optical devices. The double-channel optical performance testing device of the integrated waveguide modulator comprises a high-polarization stability wide spectrum light source, an integrated waveguide modulator to be detected, an optical distance demodulating device and a polarization crosstalk detecting and recording device. According to the device, the system structure is simplified and the testing function is enriched; the cost is reduced and the testing efficiency is improved; the double-channel optical performance testing device can be widely applied to a quantitative test of the optical performance of integrated waveguide devices with an extinction ratio greater than 80dB.

The invention provides annular suspension protection liquid of an annular suspension mechanical seat seal oil well, which comprises the raw materials by weight percent: 10-14% of an emulgator for a low interfacial tension surfactant, 0.1-0.5% of a foaming agent for a nonionic surfactant, 0.1-0.3% of a foam stabilizer, 25-28% of an oil phase, 0.5-1% of a corrosion inhibitor for water-based quaternary ammonium salt, and the balance of water. The annular suspension protection liquid of the annular suspension machinery seat seal oil well, disclosed by the invention, can be used for protecting an oil lantern ring being in the annular suspension state, the corrosion mitigation rate is relatively good, uplifting pressure can not be generated onto an opening of the well, the ageing of a packer can be prevented, and the cost of the annular suspension protection liquid can be reduced.

The sports bag with chair device provides a rigid front connected to a pliable rear, a top spaced apart from a bottom, and a pair of spaced apart sides, a top handle disposed within the top pliable rear, a pair of spaced apart wheels disposed on the rigid front bottom, the wheels extended forwardly from the front, an upper compartment disposed within the pliable rear top, a lower compartment disposed rearwardly and downwardly within the pliable rear, a closure selectively closing each compartment, a recess disposed about midway within the rigid front, a pivoted chair disposed within the recess, the pivoted chair selectively positioned within and without the recess, and a pair of spaced apart telescopic legs pivotally affixed forwardly and downwardly on the pivoted chair.

The invention discloses a steel sheet pile cofferdam structure construction method which comprises the steps that (1) an inner side locating steel pipe pile and an outer side locating steel pipe pile are arranged on the inner side and the outer side of a steel sheet pile in a ramming mode, and an upper layer plane locating structure is fixedly arranged on the inner wall of the upper portion of the outer side locating steel pipe pile; (2) a cantilever beam which is connected with a lower layer precast concrete supporting whole system through a hanging rod is arranged on the top of a steel protecting cylinder; (3) an upper layer enclosing purlin is arranged on the inner side locating steel pipe pile, a steel sheet pile is inserted between the upper layer enclosing purlin and the upper layer plane locating structure in a ramming mode, the steel sheet pile is welded with the upper layer enclosing purlin in an inserting mode, and then an upper layer steel inner support is fixedly arranged in the upper layer enclosing purlin; (4) water in the steel sheet pile cofferdam is extracted out, a bracket is welded to support a lower layer precast concrete inner support, then the steel sheet pile and the lower layer enclosing purlin are welded, finally the hanging rod is removed, and the cantilever beam is detached; and (5) bearing platform concrete construction is carried out. The vertical accuracy of the steel sheet plate can be effectively controlled with the method.

The invention discloses a dispatch monitoring information processing system for substation equipment. The dispatch monitoring information processing system comprises a business execution layer arranged on the upper layer and a supporting platform layer arranged on the lower layer and connected with the business execution layer. According to the invention, the shortcomings that the stability is poor, the reliability is poor and the application range is small in the prior art can be overcome, and the dispatch monitoring information processing system has the advantages of being good in stability, high in reliability and large in application range.

A process for reducing the Fe-base catalyst used for slurry-bed Fischer-Tropsch synthesis includes such steps as adding the liquid-phase hydrocarbon compound whose boiling point is higher than 34 deg.C and proper Fe-base catalyst to slurry-bed reactor, displacing the air in the reactor system by inertial gas or synthetic gas, raising pressure, program-controlled raising temp, in-situ reducing for 15-94 hrs, and direct Fischer-Tropsch synthesizing.

The invention relates to a fluorescent silver cluster, and a preparation method and application thereof. The average particle size of the fluorescent silver cluster is 1nm, and the fluorescent silver cluster can emit fluorescence, of which the wavelength is 650nm or so, under the excitation of light with different wavelengths. The preparation method comprises the following steps: reacting a silver salt and a protective agent in a water solution to generate a soluble silver complex, and slowly adding a reducer to generate the water-soluble fluorescent silver cluster. The fluorescent silver cluster can be used as a reagent for detecting mercury ions. The high-stability nano silver cluster, which can emit strong red fluorescence within the range of quantum scale, is formed by using common and cheap chemical reagents through a simple and practical synthesis technique. The nano silver cluster has very high sensitivity and specificity when being used as a reagent for detecting metallic ions, especially mercury ions. The invention can be widely used in the technical fields of environment detection, food safety and the like.

A paper reinforcing agent contains amphoteric polyacrylamide aqueous dispersion. A preparation method comprises the following preparation steps: adding part of main monomers into a water-phase medium dissolved with a chelating agent, a dispersion stabilizing agent and inorganic salt, and polymerizing by a previous initiator to obtain a seed polymer; and then adding deionized water, the remaining main monomers and a later initiator in the seed polymer, and carrying out polymerization reaction to obtain an amphoteric polyacrylamide water-in-water dispersion solution. The amphoteric polyacrylamide aqueous dispersion is water-in-water polymer emulsion which is small in apparent viscosity, good in mobility, large in molecular weight, uniform in particle size and excellent in storage stability; and the dispersion solution product is added in slurry or is sprayed and permeates in net wet paper, the strength, including tensile strength, bursting strength, ring crush compression resistance, surface strength and the like, of paper can be improved, and meanwhile, the retention and drainage effect in a papermaking process is improved.

The invention provides an automatic focusing method and an automatic focusing device. The automatic focusing method is suitable for the automatic focusing device, and includes: selecting a target object, and using first and second image sensors to photograph the target object so as to generate a first image and a second image; performing three-dimensional depth estimation according to the first image and the second image so as to generate a three-dimensional depth map; performing optimization processing on the three-dimensional depth map so as to generate an optimized three-dimensional depth map; judging depth information corresponding to the target object according to the optimized three-dimensional depth map, and obtaining a focusing position of the target object according to the depth information; and driving the automatic focusing device to execute an automatic focusing program according to the focusing position.

The invention relates to an automatic ship tracking method and system based on a deep learning network and mean shift. The method comprises the steps that monitoring video data including coastal areamonitoring video data under visible light are acquired, and each frame of image is extracted; preprocessing is carried out to extract the positive sample and negative sample of a ship target; throughan area-based convolutional neural network method, the samples of the ship target in a video are input into a neural network for model training; the initial frame data of the video are extracted, andship detection and probability density calculation are carried out on initial moment data according to a trained model; and the ship tracking result at the current moment is determined through the calculation result of the previous moment. According to the invention, the method has a great detection result for complex scenes such as clouds, cloudy days, rain and the like; the method has the advantages of high robustness and stability and fully automated tracking process; the stability and accuracy of the neural network method eliminate errors for a mean shift method; and a basis is laid for the tracking of an emerging target.