32results about How to "Maintain long-term stability" patented technology

The present invention is directed to a synthetic biomaterial compound based on stabilized calcium phosphates and more particularly to the molecular, structural and physical characterization of this compound. The compound comprises calcium, oxygen and phosphorous, wherein at least one of the elements is substituted with an element having an ionic radius of approximately 0.1 to 1.1 Å. The knowledge of the specific molecular and chemical properties of the compound allows for the development of several uses of the compound in various bone-related clinical conditions.

The invention belongs to the field of furnace lining repairing, and particularly relates to a furnace lining gap repairing material and a furnace lining gap repairing method. The furnace lining gap repairing material provided by the invention comprises the following components: 25 to 40 wt% of inorganic fibers, 2 to 10 wt% of an expansion filler, 2 to 15 wt% of refractory powder, 10 to 20 wt% of abinding agent and 30 to 60 wt% of a solvent, wherein the inorganic fibers comprise one or more selected from the group consisting of glass fibers, rock wool fibers, aluminum silicate fibers, magnesium silicate fibers, calcium silicate fibers, zirconium-containing fibers and aluminum oxide fibers; and the expansion filler comprises one or more selected from the group consisting of expanded perlitepowder, expanded vermiculite powder, expanded kyanite powder and sillimanite powder. The composition of the furnace lining gap repairing material is optimally designed, and particularly, proper typesof the inorganic fibers and the expansion filler with proper usage amounts are matched and selected, so the repairing material has a very excellent furnace lining gap repairing effect, and effectively prolongs the service life of a furnace lining.

The present invention relates to a damming method by utilizing quick solidification of red-mud, and is a damming technique by adopting red-mud sintering process. Said method includes the following steps: embanking subdam and dam body, using plastic film to wrap subdam to form subdam wrapped layer; in the course of embanking red-mud subdam adding solidifying agent whose added quantity is 3-5% of red-mud weight into the red-mud, and in the course of embanking dam body adding permeation setting accelerator whose added quantity is 0.01%-1% of red-mud weight; in the dam body interior erecting reinforced steel nets on two subdam bodies.

A substitution gold plating solution for performing uniform gold plating directly on copper wiring of a printed circuit board is provided and a gold plating method using the same is provided, the solution comprising a purine-based compound or a pyrimidine-based compound having a carbonyl oxygen used as a localized corrosion inhibitor, a water-soluble gold compound, an aminocarboxylic acid as a complexing agent, a dicarboxylic acid as a conductivity improving agent, an α-hydroxycarboxylic acid and heteroaryl carboxylic acid as a base metal elution and re-precipitation preventing agent, a sulfite compound as a gold ion stabilizer, an axole compound as a surface corrosion inhibitor, other surfactants, crystal regulators, pH adjuster, and buffers.

The substitution-type electroless gold plating solution according to the present invention prevents the localized corrosion of the copper surface, which is the base metal, and thus the gold plating film produced is excellent in solder mounting reliability.

The invention provides a laser frequency locking method, device and system. The method comprises the following steps of: locking the laser frequency by using an optical cavity longitudinal mode; obtaining the non-Doppler saturation absorption signal of the infrared vibrational-rotational transition of the molecule at the laser frequency; according to the non-Doppler saturation absorption signal, obtaining the error signal, wherein the center of the error signal corresponds to the transition center of the non-Doppler saturation absorption signal; according to the error signal, adjusting the laser frequency so that the center of the laser frequency is equal to the transition center of the Doppler-free saturation absorption signal. A laser frequency is locked by that longitudinal mode of theoptical cavity, In the case of precise locking, the linewidth of the laser can also be narrowed. At the same time, the linewidth of the infrared oscillation transition of the molecule is narrowed, which is generally limited by the widening of the transit time, and the magnitude of the linewidth is in the order of hundred kilohertz. Therefore, the long-term stability of the laser frequency can be maintained by locking the laser frequency at the saturation absorption center of the infrared oscillation transition of the molecule.

A freeze-dried product containing a platinum (II) complex represented by the following general formula as a primary component. The freeze-dried product according to the present invention has superior storage stability, and handling thereof for administration in medical treatments is facilitated due to rapid dissolution thereof in water for injection. In addition, they are characterized in requiring no special storage conditions such as refrigeration and freezing.

Provided is a quinoline derivative having indoleamine-2,3-dioxygenase inhibitory activity, specifically, provided is a compound of general Formula (I) or pharmaceutically acceptable salt thereof, its pharmaceutical composition, preparation method and use in the manufacture of a medicament for immunomodulating and preventing and/or treating of a disease associated with IDO expression abnormality and/or tryptophan metabolism abnormality. Also provided is use of a combination medication of the quinoline derivative and HDAC inhibitor and its use in the manufacture of an anti-tumor drug.

A-X—B—Y-M   Formula (I)

The invention discloses a coating for delaying the corrosion of a power system earth mat. Sol is prepared from the following raw materials: 0.1-0.6 mol of metal organic compound containing alkoxy, 1.0-4.0 mol of alcoholic solvent, 0.0015 mol of acidity regulator, solid fine particles accounting for 0.1-40 percent of the total mass of a finial coating and 0.001-0.005 mol of catalyst, wherein the metal organic compound containing alkoxyl is a mixture of one or more of ethyl orthosilicate, butyl titanate, tetrabutyl zirconium and gamma-aminopropyltriethoxysilane according to any proportion; the alcoholic solvent is ethanol; and the acidity regulator is acetic acid. The costing is a silicon dioxide-based organic-inorganic compound costing, which can be used for effectively improving the environmental corrosion resistance of an earth mat material, maintaining long-term stability of a material surface, prolonging the fault-free running period of an earth mat system and further raising the safety running level of a power system. As proved by a simulation test piece soil burying acceleration test, the surface state of a test piece is stable basically, and the using requirement can be met.

The invention relates to a multi-layer self-adhesive melt-blown cloth with sterilization and virus killing functions, a production process and a production line thereof, the multi-layer self-adhesive melt-blown cloth comprises more than two layers of melt-blown cloth, a traditional Chinese medicine layer or a chemical sterilization and virus killing component layer is arranged between every two layers, and the multi-layer structure is overlapped up and down and self-adhered. After a fiber cloth layer is formed on a melt-blowing production line adopting more than two melt-blowing nozzles, a traditional Chinese medicine layer or a chemical sterilizing and virus-killing component layer is sprayed by an atomizing or spraying device of traditional Chinese medicine or chemical liquid medicine, and meanwhile, drying and electrostatic electret are performed by an air suction drying device. The cloth is simple in structure and convenient to manufacture, has the functions of efficiently adsorbing, filtering and killing fine particulate matters, viruses and bacteria, and has the advantages of long shelf life and the like.

The present invention relates to an apparatus and a method for manufacturing instantly emulsified cosmetics. According to one aspect of the present invention, the apparatus for manufacturing instantlyemulsified cosmetics comprises a housing for forming an exterior; a pump provided in the housing for discharging an instantly emulsified emulsion to the outside of the housing; a first container provided in the housing for storing an internal fluid; a second container provided in the housing for storing a functional fluid including a functional raw material; a third container provided in the housing for storing an external fluid; a channel part provided in the housing for receiving the external fluid, the internal fluid and the functional fluid to generate an emulsion; and a tube for providing the pump with the emulsion generated in the channel part, wherein the channel part includes: a first channel for mixing the internal fluid and the functional fluid to generate a mixed fluid; and a second channel for mixing the mixed fluid provided from the first channel and the external fluid to generate an emulsion.

The present invention relates to an apparatus for manufacturing cosmetic using instantaneous emulsification. Provided according to an aspect of the invention may be an apparatus for manufacturing cosmetic using instantaneous emulsification, which includes a housing which forms an outer appearance; an internal phase container which is replaceably coupled to the housing, and which stores internal phase fluid; an external phase container which is replaceably coupled to the housing, and which stores external phase fluid; a channel unit which generates emulsion by mixing the internal phase fluid provided from the internal phase container and the external phase fluid provided from the external phase container; and an operative unit which provides external force required to form and discharge emulsion at the channel unit by manipulation of a user. The internal phase container and the external phase container have a pumping part which is operated by action of the operative unit, and the operative unit presses the pumping part of the internal phase container and the pumping part of the external phase container at the same time by external force to discharge the internal phase fluid stored in the internal phase container and the external phase fluid stored in the external phase container to the channel unit.

The invention discloses an atmospheric multiparameter transmitter for a PM2.5 particulate matter monitor. The atmospheric multiparameter transmitter is characterized in that the upper end of a sampler pipeline (16) is connected with a sampler (1); the sampler pipeline (16) passes through a heater (2); the lower end of the sampler pipeline (16) is connected with a sensor module (15); one end of a heating power supply control unit (6) is connected with the heater (2) and the other end of the heating power supply control unit (6) is connected to a multiparameter transmitter host (10); a temperature and humidity sensor (5) is arranged on the sampler pipeline (16); an outdoor sensor (4) is positioned on the edge of the sampler (1); one end of a sensor transmission line terminal (9) is respectively connected with the temperature and humidity sensor (5), the outdoor sensor (4) and an RS232 external output communication interface (8); and the other end of the sensor transmission line terminal (9) is connected with the multiparameter transmitter host (10). The atmospheric multiparameter transmitter improves accuracy and reliability of sampling and analyzing PM2.5, has functions of monitoring, regulating and controlling temperatures, humidities and pressures inside and outside the PM2.5 sampler in real time, adopts a heat tracing condensation-preventing technology, intelligently controls sample gas into a suitable humidity range and ensures accuracy of PM2.5 measurement.

The disclosure provides a method for removing a cancer tumor stem cell and then further removing a tumor cell and provides an application of a drug molecule and its preparation in tumor treatment or prevention. On the one hand, by inducing the death of immunogenic cells, the anti-tumor immune response is enhanced. On the other hand, indoleamine-2,3-oxygenase is inhibited, immune cells, cytokines, amino acids, etc. are regulated, which improves the niche of cancer stem cells and makes them no longer conducive to the growth of cancer stem cells. Stem cell dormancy is lifted, and the sensitivity of cancer stem cells to chemotherapy drugs and immune cells is enhanced, so that cancer stem cells and tumor cells are effectively killed, and the efficacy of tumor treatment is improved.

The invention discloses ink for a ballpoint pen. The ink comprises oil-soluble dye, a film-forming agent, a solvent and a dispersing agent, wherein the film-forming agent is a mixture of a protein film-forming agent, an acrylic resin film-forming agent and a butadiene resin film-forming agent, and the dispersing agent is a mixture of tri-ethylhexyl phosphonic acid, methyl anyl alcohol, polyacrylamide and fatty acid polyethylene glycol ester. The ink is strongly erasable and easy to wipe off and accordingly paper can keep clean and tidy.

The invention belongs to the field of preparation of carbon nanotube-graphene composite materials, and discloses an ultra-short carbon nanotube-graphene composite material and a preparation method andapplication thereof. The preparation method comprises the following steps: S1, carrying out a liquid phase self-assembly method on an ultra-short carbon nanotube with the length of 310-600nm and graphene oxide to obtain a water-soluble ultra-short carbon nanotube-graphene oxide dispersion liquid; and S2, adding a reducing agent sodium borohydride in the step S1, and preparing the water-soluble ultra-short carbon nanotube-graphene composite material under the conditions that the reaction temperature is 60-90 DEG C and the time is 30-120 minutes. The method is simple in process, can be used forpreparing the relatively uniform ultra-short carbon nanotube-graphenecomposite material, and can be applied to the fields of electronic equipment heat management and heat energy storage.

The embodiment of the invention provides a composite screw which is used for solving the problem that a screw in the prior art is poor in firmness and easily falls.According to the technical scheme, the composite screw comprises a screw body and a PEEK cap which are mutually independent, wherein the screw body comprises a threaded portion and a head portion, the head portion is provided with a hole, and the PEEK cap is located on the outer side of the head portion and is connected with the head portion.The embodiment of the invention further provides a composite fixing assembly.

A carbon nanotori-based lubricant composition for tribological applications, specifically for use in machining operations, which includes distilled water and a specific content of carbon nanotori having specific properties, which make them suitable for proper dispersal in distilled water without precipitation and remaining stable for a long time in dispersion without the need to add surfactants.