30results about How to "Process quality is easy to control" patented technology

The invention relates to a fusion protein and composition for treating animal tumors. The fusion protein comprises three different gene segments. The fusion protein obtained according to the inventionhas a good inhibition effect on various animal solid tumors, and can shrink the tumors and even regress the tumors; metastasis of malignant tumors can be better inhibited; and the life quality of a patient is improved to a great extent.

The invention belongs to the technical field of catalytic materials, and discloses a polymer molecular cluster nanocomposite catalytic material, a preparation method and application thereof. The polymer molecular cluster nanocomposite catalytic material is mainly prepared from molecular clusters and acrylate monomers; the molecular clusters are polyoxometalate molecular clusters, which are at least one of Lindqvist type, Keggin type or Anderson type. The invention also discloses a preparation method of the composite catalytic material. The composite catalytic material of the present invention has good mechanical properties, high catalytic efficiency, good catalytic stability, and is easy to recycle, and avoids the shortcomings of traditional materials such as reduced catalytic efficiency, poor stability, and inability to be recycled due to the departure of the catalytic center during the catalytic process. ; In addition, the catalytic material of the present invention can realize gas separation catalysis. The catalytic material of the invention is applied in the fields of gas separation catalysis and heterogeneous catalysis.

The invention belongs to the technical field of solid electrolytes, and discloses a microphase-separated high-temperature anhydrous ion conductive nanocomposite material and its preparation and application. The high-temperature anhydrous ion conductive nano-composite material is mainly prepared from molecular clusters, polyethylene glycol-based macromolecular initiators, styrene and divinylbenzene monomers. The high-temperature anhydrous ion conductive nano-composite material of the invention has a bicontinuous microphase separation structure, good electrical conductivity, high thermal stability, good mechanical performance and high safety, and overcomes the safety of traditional solid-state electrolyte materials under high temperature conditions. It avoids the shortcomings of the existing solid electrolyte materials, which are easy to exude from the polymer matrix, and broadens the application of fuel cells and lithium-ion batteries in extreme environments. The method of the invention is simple and the quality is easy to control. The prepared composites are used as solid electrolytes for fuel cells and lithium-ion batteries.

The invention discloses an MEMS (Micro-Electromechanical System)-based micro-mechanical sensor, belonging to the technical field of micro-mechanical sensors. The sensor comprises three layers of substrates made from monocrystalline silicon wafers, and a unique path for gas circulation is formed by a first cavity formed in a first substrate, a first through hole formed in a second substrate and a third cavity formed in a third substrate. When a first diaphragm stuck to the first substrate is damaged due to strong impact, the first diaphragm can be dismounted and replaced, so that the use is facilitated, and the efficiency is increased; by using an MEMS processing process, the size of the sensor is reduced; precipitation particles can be measured by using the micro-mechanical sensor.

The invention discloses an injectable body-temperature-cured temperature-self-control thermotherapy magnetic hydrogel and a preparation method thereof and belongs to the technical field of biomedicalmaterials. The injectable body-temperature-cured temperature-self-control thermotherapy magnetic hydrogel is prepared by taking an injectable body-temperature-cured hydrogel as a matrix and carrying magnetic nanoparticles, the hydrogel has the characteristics of room-temperature liquid injectability and body-temperature gel formation and curing, can be stabilized between the appointed thermotherapy temperatures (40-45 DEG C) and cannot be liquefied again even if being further heated after gel formation and curing. The preparation method comprises the steps: adding chitosan powder into a temperature-self-control magnetic nanoparticle dispersion solution to obtain a dispersion solution A; adding sodium glycerophosphate and sodium hyaluronate powder into deionized water obtain a mixed solution B; and dropwise adding the mixed solution B into the dispersion solution A in an ice bath state to obtain a product. The preparation process is simple, and the process quality is easy to control; and the obtained product is capable of avoiding the problem that the magnetic nanoparticles are easy to diffuse and lose after being injected into a human body, and the product is capable of heating under the action of an alternating magnetic field to reach the temperature required by thermotherapy so as to be wide in application range.

The invention provides a method for manufacturing hydro-valve body, comprising the steps of: a. part machining; b. welding; and c. fine machining. And it moulds case, water inlet base, inner water pipe, valve core seat, and water outlet base and weld them together. And it compromises the advantages of hot forging and casting processes, saving large number of materials, reducing manufacturing cost and easy to control.

The invention discloses polyvinyl alcohol hydrogel and a preparation method thereof and belongs to the field of biological materials. The polyvinyl alcohol hydrogel is prepared by adopting agarose AG as a pore-forming agent, adopting polyvinyl alcohol as a matrix, freezing and thawing. The polyvinyl alcohol hydrogel is prepared from the following components, counted by 100 parts by mass, 15 to 20 parts of the polyvinyl alcohol, 2 to 6 parts of the agarose and the balance of deionized water. The preparation method comprises the following steps: firstly, completely dissolving the polyvinyl alcohol into the deionized water, then adding the agarose and uniformly mixing; carrying out processes such as defoaming, freezing, thawing and eluting on a mixed solution to obtain the polyvinyl alcohol hydrogel with high strength and a porous structure. The preparation method disclosed by the invention is simple; the obtained hydrogel has the advantages of simple formation and stable structure; mechanical properties and the porous structure of the polyvinyl alcohol hydrogel can meet the requirements of natural articular cartilage materials.

The invention relates to a package structure of a variable optical attenuator multiplexer. The package structure of the variable optical attenuator multiplexer comprises a package box composed of an upper cover and a lower bottom, wherein a control circuit board is fixed to the lower bottom, a silicon waveguide mode array variable optical attenuator and an array waveguide optical grating are fixed to the control circuit board, and a fiber channel of the silicon waveguide mode array variable optical attenuator and a fiber channel of the array waveguide optical grating are correspondingly connected through fibers. Meanwhile, the invention relates to a manufacturing method of the package structure. The silicon waveguide mode array variable optical attenuator based on the photoelectric absorption effect is adopted to manufacture the variable optical attenuator multiplexer, the reliability is good, the response speed is high, the response time reaches the microsecond level, heating is not required, and power consumption is lower.

The invention discloses an MEMS (Micro-Electromechanical System) sensor, belonging to the technical field of micro-mechanical sensors. The sensor comprises three layers of substrates made from monocrystalline silicon wafers, a unique path for gas circulation is formed by a second cavity, a first through hole, a third cavity and a second through hole, and measuring resistors and a heating resistor are arranged at the narrowest part of the path for gas circulation, so that the sensitivity of the micro-mechanical sensors is improved. Precipitation particles can be measured by using the micro-mechanical sensors.

The invention discloses a micro mechanical sensor with three layers of base plates, and belongs to the technical field of micro mechanical sensors. The sensor comprises the three layers of base plates made of monocrystalline silicon wafers, the three layers of base plates and a cavity structure are utilized for forming a unique path for gas circulation. The micro mechanical sensor has the advantages that an MEMS (micro-electromechanical system) processing process is adopted, the size of the sensor is reduced, and the micro mechanical sensor can be used for measuring precipitation particles.

The invention relates to an injectable body temperature cured thermal therapy magnetic hydrogel and a preparation method thereof and belongs to the technical field of biomedical materials. The hydrogel is prepared from an injectable body temperature cured hydrogel as a matrix carrying magnetic nano particles. The hydrogel has the characteristics of room temperature liquid injectability and body temperature gel curing, and can be stabilized at an appointed thermal therapy temperature (42-70 DEG C); and the hydrogel is not liquefied again in the thermal therapy heating process after gel formation. The preparation method comprises the following steps: firstly, adding a chitosan powder into a magnetic nano particle acetic acid dispersion liquid to obtain a dispersion liquid A; then, adding sodium glycerophosphate and sodium hyaluronate powder into deionized water to obtain a mixed solution B; and finally, dropwise adding the mixed solution B into the dispersion liquid A in an ice bath state to obtain a product. The preparation process is simple and easy to control quality. The obtained product can solve the problem that the magnetic nano particles injected to a human body are easy to diffuse and lose, can be heated under the action of an alternating magnetic field to achieve the thermal therapy needed temperature, and has a wide application range.

The invention discloses a green, low-toxic, high-viscosity polyoxometalate-based glass adhesive, a preparation method and application thereof. The adhesive is prepared from polyvinyl alcohol, polyoxometalate and water, wherein the mass ratio of polyvinyl alcohol to polyoxometalate is 12: (2.4-84), and the mass ratio of polyvinyl alcohol to water is 1:99 ~30:70. The method is to prepare the adhesive by blending polyvinyl alcohol with polyoxometalates after completely dissolving in water. The adhesive has a simple production method, strong cohesiveness and non-toxicity, and is mainly used for bonding between glass and glass.