65results about How to "The production process is complicated" 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.

The invention relates to a method and a device for preparing an anti-counterfeiting pattern capable of symmetrically changing in brightness or colors with visual angles. The preparation device comprises a first magnetic field generation device, a second magnetic field generation device, a first curing light source, a second curing light source, a blocking grid plate and a base material conveying device. The anti-counterfeiting pattern prepared by the preparation method can change symmetrically by the methods of magnetic field induction, semi-blocking curing, secondary magnetic field induction and secondary curing, boundaries of all regions are clear and obvious, and fine stripes and the pattern can be realized; the preparation process can be kept continuous without interruption; and one magnetic field and one blocking curing are used as one unit, a plurality of units can generate a plurality of regions with the changes in the brightness or the colors, the preparation process is more complex, and the anti-counterfeiting function is higher.

The present invention discloses a steering device for use in a body lumen of a patient. The steering device comprises a flexible tube; a plurality of spaced-apart elements positioned along at least a portion of the tube; wherein the plurality of spaced-apart elements and the tube form a single integrated unit; and at least two steering wires having at least a portion passing through the spaced-apart elements and at least a portion passing within the tube. According to another broad aspect of the present invention, there is provided a steering device for use in a body lumen of a patient, comprising: a flexible tube; at least two steering wires having at least a portion passing within the flexible tube; at least two spring-like sleeves; each spring-like sleeve at least partially enclosing a steering wire respectively; wherein the spring-like sleeve has a variable pitch along its length; such that the flexible tube comprises at least two portions having different bending properties.

The invention relates to the preparation of titanium alloy, more specifically an Al-Nb-Ta intermediate alloy for titanium alloy preparation and process for preparing the same, wherein the constituents (by weight percent) of the alloy include, Al 19-28%, Ta 23-27%, and balancing Nb. The preparing process comprises, employing furnace outside ignition smelting method, operating according to routine procedures, the raw material drying temperature being 70-80 deg. C, the drying time no less than 24 hours, calculated based on 1kg of Nb2O5, the charged mixture includes, Ta2O5 0.383-0.42kg, Al 0.75-0.913kg, CaF2 0.15-0.20kg, KCLO3 0.30-0.40kg, the raw material shoving temperature being 30-60 deg. C. The advantages of the invention include facilitated preparation of titanium alloy, low making cost, homogeneous alloying, good oxidation resistance, easy storing, transport and fragmenting.

The present invention provides a nano-micellar preparation of anthracycline antitumor antibiotics for intravenous injection, which comprises a therapeutically effective amount of anthracycline antitumor antibiotics, 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 of anthracycline antitumor antibiotics for injection. The anthracycline antitumor antibiotics and the phosphatide derivatized with polyethylene glycol form a nano-micelle with a highly homogeneous 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 the body, and the circulation time in vivo of the micelle is prolonged.

The invention relates to the preparation of titanium alloy, more specifically an Al-Ti-Nb intermediate alloy for titanium alloy preparation and process for preparing the same, wherein the constituents (by weight percent) of the alloy include, Al 2-10%, Si 3-30%, and balancing Nb. The preparing process comprises, employing furnace outside ignition smelting method, operating according to routine procedures, the raw material drying temperature being 70-80 deg. C, the drying time no less than 24 hours, calculated based on 1kg of Nb2O5, the charged mixture includes, TiO2 0.25-0.66kg, Al 0.115-0.46kg, CaF2 0.05-0.10kg, KclO3 0.07-0.12 kg, the raw material shoving temperature being 30-60 deg. C. The advantages of the invention include facilitated preparation of titanium alloy, low making cost, homogeneous alloying, good oxidation resistance, easy storing, transport and fragmenting.

The invention relates to the preparation of titanium alloy, more specifically an Al-Nb intermediate alloy for titanium alloy preparation and process for preparing the same, wherein the constituents (by weight percent) of the alloy include, Al 15-55%, and balancing Nb. The preparing process comprises, employing furnace outside ignition smelting method, operating according to routine procedures, the raw material drying temperature being 70-80 deg. C, the drying time no less than 24 hours, calculated based on 1kg of Nb2O5, the charged mixture includes, Al 0.423-1.07kg, CaF2 0.07-0.16kg, KCLO3 0.065-0.28kg, the raw material shoving temperature being 30-60 deg. C. The advantages of the invention include facilitated preparation of titanium alloy, low making cost, homogeneous alloying, good oxidation resistance, easy storing, transport and fragmenting.

The invention relates to the preparation of titanium alloy, more specifically an Al-Mo-V-Fe intermediate alloy for titanium alloy preparation and process for preparing the same, wherein the constituents (by weight percent) of the alloy include, Al 5.5-17.2%, V 35-39%, Fe 3.8-5.5%, and balancing Mo. The preparing process comprises, employing furnace outside ignition smelting method, operating according to routine procedures, the raw material drying temperature being 70-80 deg. C, the drying time no less than 24 hours, calculated based on 1kg of MoO3, the charged mixture includes, V2O3 0.879-0.979kg, Fe 0.047-0.069%, Al 0.69-1.457kg, CaF2 0.05-0.4kg, KCLO3 0.14-0.20%, the raw material shoving temperature being 30-60 deg. C. The advantages of the invention include facilitated preparation of titanium alloy, low making cost, homogeneous alloying, good oxidation resistance, easy storing, transport and fragmenting.

The invention relates to the preparation of titanium alloy, more specifically an V-Al-Sn-Cr intermediate alloy for titanium alloy preparation and process for preparing the same, wherein the constituents (by weight percent) of the alloy include, Al 5.5-13.5%, Sn 11-14%, Cr 11-14%, and balancing V. The preparing process comprises, employing furnace outside ignition smelting method, operating according to routine procedures, calculated based on 1kg of V2O5, the charged mixture includes, Al 0.51-0.758kg, SnO2 0.136-0.148 kg, CrO3 0.23-0.275kg, CaF2 0.2-0.3kg, furnace slag 0.25-0.35kg (produced during vanadium-chrome-aluminum alloy smelting), the raw material shoving temperature being 30-60 deg. C. The advantages of the invention include facilitated preparation of titanium alloy, low making cost, homogeneous alloying, good oxidation resistance, easy storing, transport and fragmenting.

The invention relates to a method for inducing synovium mesenchymal stem cells (SMSCs) to be differentiated to chondrocytes by in-vitro lentivirus mediated BMP-2 (Bone Morphogenetic Protein) genes. The method comprises the following steps of: separating and culturing synovium mesenchymal stem cells; constructing a recombinant plasmid pFUGW-oBMP-2; preparing morbus virosus of transfected lentivirus; and transfecting synovium mesenchymal stem cells by the morbus virosus of transfected lentivirus, wherein in the step of preparing morbus virosus of transfected lentivirus, the transfected lentivirus is jointly formed by the recombinant plasmid pFUGW-oBMP-2 and a packaging plasmid; and in the step of transfecting synovium mesenchymal stem cells by the morbus virosus of transfected lentivirus, synovium mesenchymal stem cells over third generation is taken to be mixed with the morbus virosus of transfected lentivirus, and then added into incomplete chondroblast inducing culture liquid to induce so as to obtain chondrocytes. SMSCs transfected by the transfected lentivirus provided by the invention are safe enough and can be spontaneously differentiated to cartilage in vitro.

The invention relates to the preparation of titanium alloy, more specifically an Al-Mo-Cr-Fe-Si intermediate alloy for titanium alloy preparation and process for preparing the same, wherein the constituents (by weight percent) of the alloy include, Al 11.4-35%, Cr 20-28%, Fe 6-10%, Si 4.0-5.6%, and balancing Mo. The preparing process comprises, employing furnace outside ignition smelting method, operating according to routine procedures, the raw material drying temperature being 70-80 deg. C, the drying time no less than 24 hours, calculated based on 1kg of MoO3, the charged mixture includes, CrO3 0.71-0.99kg, Fe 0.20-0.33kg, Si 0.046-0.065kg, Al 0.663-1.92kg, CaF2 0.05-0.4kg, the raw material shoving temperature being 30-60 deg. C.

An adaptive mirror for a laser processing apparatus has a housing and a pressure chamber which is arranged in the housing and can be connected to a pressure source. A mirror substrate, which delimits the pressure chamber, is fixedly clamped in the housing. Depending on the internal pressure in the pressure chamber, which can be changed by means of the pressure source, the mirror substrate is deformed. The mirror substrate has a stiffness which increases towards the geometric centre at least in a region surrounding the geometric centre of the mirror substrate. By means of such a stiffness distribution, an almost spherical deformation can be achieved over a large surface of the mirror substrate despite the mirror substrate's being fixedly clamped into the housing.

The invention relates to the technical field of energy storage, provides a 3D (Three-Dimensional) structure electrode and a preparation method thereof, and aims to solve the problems that in an existing carbon nitride-containing electrode material, the binding force between carbon nitride and a matrix material is weak, the nitrogen loss rate is high, and the preparation technology is complicated.The preparation method comprises the following steps: putting a nitrogen-containing raw material and a porous 3D matrix on a reaction carrier; heating the nitrogen-containing raw material and the porous 3D matrix in inert atmosphere, thus obtaining the 3D structure electrode, wherein a binding agent and a solution are not required. The preparation method is different from a method of binding the carbon nitride and graphite felt by utilizing polyvinylidene fluoride as the binding agent in the prior art, and is characterized by heating and drying the nitrogen-containing raw material, sublimatingthe nitrogen-containing raw material to the surface or the inner part of the porous 3D matrix and generating the carbon nitride through in-situ reaction, thus forming the 3D structure electrode. Thebinding force between the carbon nitride and the porous 3D matrix is remarkably enhanced, the nitrogen loss rate is reduced, the preparation technology is simple, and the battery performance can be increased.

The invention relates to the preparation of titanium alloy, more specifically an V-Al-Cr-Mo intermediate alloy for titanium alloy preparation and process for preparing the same, wherein the constituents (by weight percent) of the alloy include, Al 10%, Mo 22%, Cr 30%, and balancing V. The preparing process comprises, employing furnace outside ignition smelting method, operating according to routine procedures, calculated based on 1kg of V2O5, the charged mixture includes, CrO3 0.808-1.64kg, MoO3 0.136-0.42kg, Al 0.958-2.87kg, CaF2 0.03-0.08kg, furnace slag 0-0.20kg (produced during vanadium-chrome-aluminum alloy smelting), the raw material shoving temperature being 30-60 deg. C. The advantages of the invention include facilitated preparation of titanium alloy, low making cost, homogeneous alloying, good oxidation resistance, easy storing, transport and fragmenting.

The invention belongs to the technical field of immobilized cells, in particular to a method for using a complex carrier of latex and a porous material as an immobilized carrier. The method comprises the following steps of: taking microbes subjected to activation and proliferation, mixing the microbes and the latex, and stirring and uniformly mixing; adding base material granules and stirring and uniformly mixing; drying for 0 to 4 hours at the temperature of between 50 below zero and 80 DEG C or adding a flocculant to gelatinize the latex; and finally, taking out and cleaning by using tap water, wherein the latex is used for specific engineering demands.

Various embodiments provide a light emitting diode (LED) module. In one embodiment, the LED module comprises a circuit board; a peripheral metal board abutting and about said circuit board; an electrical insulation layer on both a first surface and a second surface of said circuit board and said peripheral metal board; electrical traces on said electrical insulation layer; and one or more LEDs mounted on said electrical traces and said electrical insulation layer over said peripheral metal board.

The invention relates to a high-strength alloy cast aluminum spiral-flow constant-pressure pump material and a preparing method and application of the high-strength alloy cast aluminum spiral-flow constant-pressure pump material. The technical problem that the requirement for small weight of fire extinguishing pumps and the requirement for corrosion resistance of the pumps of the petrochemical industry cannot be met through an existing spiral-flow constant-pressure pump material is solved. The material comprises, by mass percent, 4.7-5.4% of Cu, 0.05-0.2% of Zr, 0.3-0.5% of Mn, 0.005-0.015% of B, 0.05-0.25% of V, smaller than 0.05% of Mg, 0.15-0.35% of Ti, smaller than 0.15% of Fe, smaller than 0.08% of Si, 0.15-0.25% of Cd and the balance Al. The invention further provides the preparing method and application of the high-strength alloy cast aluminum spiral-flow constant-pressure pump material. The high-strength alloy cast aluminum spiral-flow constant-pressure pump material can be widely applied to the field of manufacturing of spiral-flow constant-pressure pump materials.

The invention relates to a front module for a motor vehicle, wherein the front module is in one piece and is composed exclusively of plastic.

The invention relates to a hydrogenerator, in particular to a shaft extension tubular hydrogenerator. The shaft extension tubular hydrogenerator comprises a rotor, a stator, left and right hoods, an air cooler, a pedestal bearing, a base and an upper hood, wherein the air cooler is placed at the top of the stator; the left and the right hoods are positioned on the two sides of the stator; and the upper hood is positioned at the upper parts of the stator and the left and the right hoods. Air is sealed in an enclosed space formed by the upper hood, the left and the right hoods, the stator and the rotator; and under the rotation action of the fan of the rotor, the circulation line of the air is: the rotor - the stator - the air cooler - the upper hood - the left-right hood - the rotor. According to the shaft extension tubular hydrogenerator, the structure is compact; the cold air is stable and low in temperature and the cooling effect is good due to the adoption of the air cooler for heat exchange; the air is clean, dry and pollution-free; the generator is low in noise; the air cooler is convenient and simple to mount and maintain and not limited by the space; and the workshop foundation is small in excavated volume and low in cost.

The invention relates to the field of food processing technology, specifically to hotpot Chongqin noodle seasoning and a preparation method thereof. Raw materials of the hotpot Chongqin noodle seasoning include soybean oil, tea oil, thick broad-bean sauce, rapeseed oil, salt, fermented soya bean, bee pollen, monosodium glutamate, dried chilli, pickled ginger, chicken essence, pickled chilli, garlic, Chinese prickly ash, liquor and rock sugar. The preparation method comprises the following steps: crushing the above raw materials and soaking to form moistened particles, stir-frying the moistened particles and spices, stirring and cooling to obtain the Chongqin noodle seasoning product. The overall preparation technology is more complex than a preparation technology of traditional Chongqin noodle seasoning. The hotpot Chongqin noodle seasoning has Chongqin hotpot special flavor, and is spicy, fragrant, delicious and palatable. No preservative is added in the seasoning. Water content of the seasoning is controlled within 5-7%. Thus, the Chongqin noodle seasoning is not easy to deteriorate. With tea oil, bee pollen and kaempferia galamga, nutritional value of the Chongqin noodle seasoning is comprehensively raised. Thus, the product is beneficial to health diet for consumers and is convenient for promotion and extensive operating.

The invention provides a brush DC motor, the both ends of a motor shell is connected fixedly with left and right cover, the left cover is provided with a left bearing location hole and a left bearing, the right cover is provided with a right bearing location hole and a right bearing, the left shaft end of rotor shaft is used for slewing bearing through the left bearing, the right shaft end of rotor shaft is used for slewing bearing through the right bearing, the device is characterized that the right end face of the right shaft outer ring is made axial displacement restricting through Shaft with a collar arranged on rotor shaft; between the left shaft and commutator is provided with conical spring, the small head end of the conical spring is supported with the right side end of the left shaft inner ring, the big end is supported with the bottom end of the commutator, the left side end of the left bearing outer ring is limited by step of the left bearing location hole. The device has the advantages that the stator shaft has the reliable axial displacement restricting, the commutator has simple technology, light weight, low cost, solid structure, good heat dissipation and can meet high speed work requirement.