1378results about How to "Fast evaporation" patented technology

A device, method, and system for producing a condensation aerosol are disclosed. The device includes a chamber having an upstream opening and a downstream opening which allow gas to flow through the chamber, and a heat-conductive substrate located at a position between the upstream and downstream openings. Formed on the substrate is a drug composition film containing a therapeutically effective dose of a drug when the drug is administered in aerosol form. A heat source in the device is operable to supply heat to the substrate to produce a substrate temperature greater than 300 oC, and to substantially volatilize the drug composition film from the substrate in a period of 2 seconds or less. The device produces an aerosol containing less than about 10% by weight drug composition degradation products and at least 50% of the drug composition of said film.

A device, method, and system for producing a condensation aerosol are disclosed. The device includes a chamber having an upstream opening and a downstream opening which allow gas to flow through the chamber, and a heat-conductive substrate located at a position between the upstream and downstream openings. Formed on the substrate is a drug composition film containing a therapeutically effective dose of a drug when the drug is administered in aerosol form. A heat source in the device is operable to supply heat to the substrate to produce a substrate temperature greater than 300 oC, and to substantially volatilize the drug composition film from the substrate in a period of 2 seconds or less. The device produces an aerosol containing less than about 10% by weight drug composition degradation products and at least 50% of the drug composition of said film.

An article for use in an aerosol device, for producing an aerosol of a drug composition is disclosed. The article includes a heat-conductive substrate having a surface with a selected surface area, and a drug composition film on the substrate surface having a selected film thickness of between 0.05 and 20 μm. The film thickness is such that an aerosol formed by vaporizing the drug composition by heating the substrate and condensing the vaporized compound contains 10% or less drug-degradation product and at least 50% of the total amount of drug composition contained in the film. The selected substrate surface area is such as to yield an effective human therapeutic dose of the drug aerosol. Also disclosed are methods of making and using the article.

The invention is directed to compositions and methods for preparing electrospun matrices comprising at least one natural biological material component and at least one synthetic polymer material. The natural component makes the matrices highly biocompatible while the molecular weight polymer component can impart additional strength mechanical strength to the scaffold and / or improve ease of manufacture by increasing viscosity and spinning characteristics of the solution during electrospining.

The invention provides a subcritical liquid extraction device and a subcritical liquid extraction method of active ingredients of natural products, relating to a device and a method for extracting active ingredients of natural products. The device comprises a control system part and a leaching system part, wherein the leaching system part comprises an extraction tank 1, an evaporating tank 2, a buffer tank 3, a condenser 4, a solvent tank 5, an ultrasound generating device 11, a vacuum pump 9, a fire arrester 10, a compressor 8, a hot water pump 7 and a hot water box 6; the control system partcomprises a leaching temperature controller, a leaching time controller, a leaching frequency controller, a material dissolving ratio controller, an exsolution temperature regulation controller, an exsolution pressure feedback controller, an electric appliance controller of the device and an excess-temperature excess-pressure leaking alarm. The method can select different subcritical extraction media according to different extraction products, combines a subcritical liquid extraction technology and an ultrasonic extraction technology to increase extraction rate and reduce extraction time andis a new high-efficiency low-consumption environment-friendly technology for extracting active ingredients of natural products.

Spray drying processes are used to form pharmaceutical compositions comprising a solid amorphous dispersion of a drug and a polymer.

An article for use in an aerosol device, for producing an aerosol of a drug composition is disclosed. The article includes a heat-conductive substrate having a surface with a selected surface area, and a drug composition film on the substrate surface having a selected film thickness of between 0.05 and 20 μm. The film thickness is such that an aerosol formed by vaporizing the drug composition by heating the substrate and condensing the vaporized compound contains 10% or less drug-degradation product and at least 50% of the total amount of drug composition contained in the film. The selected substrate surface area is such as to yield an effective human therapeutic dose of the drug aerosol. Also disclosed are methods of making and using the article.

Mesoscopically ordered, hydrothermally stable metal oxide-block copolymer composite or mesoporous materials are described herein that are formed by using amphiphilic block polymers which act as structure directing agents for the metal oxide in a self-assembling system.

The invention discloses a preparation method of a one-way wet conduction nano-fiber multilayer composite membrane with the wettability gradient. The method comprises the following steps that hydrophilic nano materials are dispersed in solvent, the nano materials are dispersed uniformly through ultrasound, a hydrophilic polymer is dissolved in the dispersing agent, a spinning solution A1 is obtained, and a hydrophilic nano-fiber membrane is deposited on a receiving base material through an electrostatic spinning method; hydrophilic nano materials are dispersed in solvent, the nano materials are dispersed uniformly through the ultrasound, a hydrophilic polymer is dissolved in the dispersing agent, and a spinning solution A2 is obtained; a hydrophobic polymer is dissolved in solvent, and a spinning solution B1 is obtained; the two spinning solutions are deposited on the hydrophilic nano-fiber membrane to form at least one diversion layer through the electrostatic spinning method; a hydrophobic polymer is dissolved in solvent, a spinning solution B2 is obtained, a hydrophobic nano-fiber membrane is deposited on the diversion layers through the electrostatic spinning method, and the one-way wet conduction nano-fiber multilayer composite membrane with the wettability gradient is obtained.

The present invention belongs to the fields of pharmacology, medicine and medicinal chemistry. The present invention provides novel pharmaceutical compositions composed of solid nanoparticles dispersed in aqueous medium of substantially water insoluble pharmaceutical substances such as docetaxel with reduced Ostwald ripening.

A device for separating water from sludge comprising a processing box, wherein a feeding cylinder is disposed above the processing box, and the feeding cylinder is fixedly connected to the processing box through a plurality of connecting rods; a rotating rod is rotationally connected into the feeding cylinder; a first rotating motor is fixedly connected to one side of the feeding cylinder; the output end of the first rotating motor penetrates through the side wall of the feeding cylinder, and is fixedly connected to the rotating rod; a spiral blade is fixedly sleeved with the rotating rod, and the outer side of the spiral blade is matched with the inner side wall of the feeding cylinder.

Described are methods and apparatus for promoting and attaining effective hand hygiene based on the employment of a class of packaging which provides timely access to and convenient use of hand sanitizing fluids for hand rubbing. A specific and novel type of package representative of this class found to be particularly useful in facilitating this method is a small, flat, disposable, twin chambered, multi-dose, self-sealing polymer packet designed to be pocket carried by the user. Through simple and direct finger manipulation a measured dose of hand sanitizing fluid is drawn on to the hand in a controlled and wasteless manner from a metering chamber opened for dispersal through a tear in the packet wall. The self-sealing packet reserves and preserves the remaining fluid for future uses and permits the packet to be immediately returned to a pocket without any closure manipulation. Rubbing the hands to distribute the fluid achieves an effective degree of hand sanitation by substantially reducing the presence of hand-borne pathogens. Distribution of the packets is encouraged by the use of lottery and gaming techniques that heighten the opportunity of using a hand sanitizing fluid for proper hand hygiene.

A method for laser drilling and laser cutting of semiconductor material or glass in pulsed regime permits, for a given laser power, a rate of material cutting which is substantially higher than the rate obtained using conventional laser cutting. The hole or cut produced by the laser-induced removal of material has a reproducible shape, the drilling or cutting does not produce material debris or spatter deposition around the crater or cut, and the cracking of the crater or cut walls is prevented. The method includes utilization of a unique physical model representing all main physical processes taking place during laser-assisted material deposition, a corresponding mathematical model consisting of equations describing the relevant physical processes, and a computer code used for numerical calculations of the parameters of interest according to the mathematical model.

The invention relates to the field of liquid cooling, and provides an integrated liquid-cooling heat dissipation case. The integrated liquid-cooling heat dissipation case comprises a case body, a circuit board and a liquid-cooling heat dissipation system. A closed space composed of a plurality of wall boards is formed in the case body. The circuit board is arranged in the case body, and one or more heat emission devices are arranged on the circuit board. A liquid storage groove is formed in the bottom of the case body and used for storing cooling liquid. The liquid-cooling heat dissipation system comprises a pipeline, a heat dissipation mechanism, a pumping mechanism and a spraying mechanism. The pumping mechanism is used for pumping the cooling liquid in the liquid storage groove into the pipeline, the spraying mechanism is connected to one end of the pipeline and used for spraying the cooling liquid into the case body or directly spraying the cooling liquid to the heat emission devices, and the heat dissipation mechanism is arranged at the position, in front of the spraying mechanism, of the pipeline and used for transferring heat of the cooling liquid to the outside of the case body. By the adoption of the integrated structural design, the integrated liquid-cooling heat dissipation case can be used in hostile environments and is convenient to carry, reasonable in design, light in weight, high in heat exchange capability and low in cost.

A coolant recovery system for reducing coolant loss within thermal management systems. The coolant recovery system includes a thermal management unit having a spray chamber and a coolant recovery chamber, a first cooling coil within the coolant recovery chamber, and a chilled water supply fluidly connected to the first cooling coil. The coolant is sprayed upon the electronic device within the spray chamber and then is collected into the coolant recovery chamber for thermal conditioning. A removable chamber may be removably positioned within the spray chamber. In an alternative embodiment, a central unit may be connected to a plurality of thermal management units.

Arrangement for introducing a liquid medium into exhaust gases from a combustion engine, comprising a mixing duct, a first flow guide for creating a first exhaust vortex in the mixing duct such that the exhaust gases in this first exhaust vortex rotate in a first direction of rotation during their movement downstream in the mixing duct, an injector for injecting the liquid medium in the form of a finely divided spray into exhaust gases which are led into the liquid medium in an exhaust flow at the centre of the first vortex, and a second flow guide for creating a second exhaust vortex in the mixing duct concentrically with and externally about the first vortex, such that the exhaust gases in this second vortex rotate in a second direction of rotation, which is opposite to said first direction of rotation, during their movement downstream in the mixing duct.

Mixed-phase TiO2 nanofibers prepared via a sol-gel technique followed by electrospinning and calcination are provided as photocatalysts. The calcination temperature is adjusted to control the rutile phase fraction in TiO2 nanofibers relative to the anatase phase. Post-calcined TiO2 nanofibers composed of 38 wt % rutile and 62 wt % anatase exhibited the highest initial rate constant of UV photocatalysis. This can be attributed to the combined influences of the fibers' specific surface areas and their phase compositions.

The invention is directed to compositions and methods for preparing electrospun matrices comprising at least one natural biological material component and at least one synthetic polymer material. The natural component makes the matrices highly biocompatible while the molecular weight polymer component can impart additional strength mechanical strength to the scaffold and / or improve ease of manufacture by increasing viscosity and spinning characteristics of the solution during electrospining.

Disclosed is a porous carbon nanotube microsphere material and the preparation method and use thereof, a lithium metal-skeleton carbon composite and the preparation method thereof, a negative electrode of a secondary battery, a secondary battery, and a metal-skeleton carbon composite. The porous carbon nanotube microsphere material is spherical or spheroidal particles composed of carbon nanotubes. The spherical or spheroidal particles have an average diameter of 1 μm to 100 μm. A large number of nanoscale pores are composed of interlaced nanotubes inside the particle, and the pore size is 1 nm to 200 nm. The preparation method thereof comprises: mixing and dispersing carbon nanotubes and a solvent, and performing spray drying, to obtain the carbon nanotube microspheres. The lithium metal-skeleton carbon composite is obtained by uniformly mixing lithium metal in a melted state with a porous carbon material carrier and cooling.

The invention discloses a fuel and air mixing device for a low-pollution burning chamber of a gas turbine. Fuel comprises a main burning level and a duty burning level; and air is supplied by a three-stage cyclone. The fuel and air mixing device is characterized in that the central duty level adopts diffusive burning, and the peripheral main burning level adopts premixing or semi-premixing burning. The central duty level consists of a centrifugal atomizing nozzle and first-stage cyclone air; and the rotating directions of the first-stage cyclone air and second-stage cyclone air are opposite. The fuel of the main burning level is supplied by a multipoint direct-injection type nozzle, the air is respectively supplied by the second-stage cyclone air and third-stage cyclone air, and the rotating directions of the second-stage cyclone air and third-stage cyclone air are opposite. The central duty level is used when in low working conditions such as starting and slowing and the like, so that the stable burning range can be widened, the burning efficiency can be improved and the emission of CO and UHC is reduced; and when in large working conditions, the duty level and the main burning level work simultaneously, the duty level provides a stable ignition source for the main burning level, a main burning area is in a lean-oil state, and the temperature is far lower than the temperatureof insulated flame, so that the emission of NOx under the large working conditions can be obviously reduced. The fuel and air mixing device can be used for an aerial gas turbine engine or an industrial gas turbine.

Surface retarder compositions of the invention comprise at least one surface retarder active suspended in a vegatable oil or derivative thereof, an animal oil or derivative thereof, or mixtures thereof. Methods involving use of the compositions are also described.

A hydrogen peroxide sterilization device comprises a hydrogen peroxide liquid storage barrel, an ultrasonic atomizer, an electrical control unit, a vaporizing chamber, a metering pump, an solenoid-controlled valve, an air blower, a heater, a filter device, an air inlet and a steam outlet pipe; the ultrasonic atomizer is further provided with an ultrasonic nozzle provided with an air flue to evenly diffuse atomized hydrogen peroxide microdroplets in the vaporizing chamber, the vaporization efficiency is improved, the atomized hydrogen peroxide microdirplets can be vaporized rapidly at a lower temperature, and the energy is saved. Indoor air serves as carrier gas, outside air is not introduced, and secondary pollution is avoided. Hydrogen peroxide big droplets which are not vaporized in the vaporizing chamber can drop back on the heater under the action of gravity to be vaporized again. By controlling various related parameters, a dew point temperature of output vaporized hydrogen peroxide is made to be lower than the indoor temperature all the time, a steady flow is guaranteed for the vaporized hydrogen peroxide, and the water mist condensation phenomenon which occurs in the transport process are avoided.

An arrangement is provided in a fuel cell power plant (10) for dispensing (58 74,60, 64) a liquid medium, such as water (66), into a process oxidant (air) stream (53) that flows through one gas channel (42) in an energy recovery device (ERD) (32). An exhaust gas stream (48) containing heat and moisture from the fuel cell (12) flows through another channel (44) in the ERD. An enthalpy exchange barrier (46) separates the one and the other gas channels, but allows mass and / or heat transfer therebetween. The water is injected into the air stream (53) in a controlled (70, 74) amount, and perhaps temperature (78), in response to sensed parameters (80, 84, 90) of the power plant, including the process air stream, to adjust one or more conditions in the power plant. Controlling ERD dryness, providing a defrost capability for the ERD, and / or preventing excessive water accumulation in the system are several of the conditions controlled.

The invention provides an electronic device utilizing liquid cooling heat radiation. The electronic device comprises a shell, a circuit board and a liquid cooling heat radiation module. The circuit board and the liquid cooling heat radiation module are arranged in the shell. The circuit board is provided with one or multiple heating devices. The liquid cooling heat radiation module comprises a liquid inlet pipeline and nozzles which are arranged on the liquid inlet pipeline. Cooling liquid is conducted into the shell from the outside of the shell by the liquid inlet pipeline. Cooling liquid is sprayed in a space formed by the shell by the nozzles to cool the heating devices. Cooling liquid steam after heat exchange is mixed with cooling liquid sprayed by the nozzles so that the cooling liquid steam is enabled to be condensed. Compared with an existing direct liquid cooling heat radiation device, the electronic device utilizing liquid cooling heat radiation has advantages of being low in demand for cooling liquid, low in weight, simple in system structure, high in heat exchange capability and high in environmental adaptability and has quite high application potential.

The invention discloses a white light LED. The white light LED comprises a substrate, an LED chip and a transmitting shell, wherein the bottom of the LED chip is fixed on the surface of the substrate; the upper part of the LED chip is sleeved by the transmitting shell; a quantum dot thin film is adhered to the inner surface of the transmitting shell; and encapsulation glue is filled between the transmitting shell and the substrate. The invention furthermore discloses a preparation method of the white light LED. According to the white light LED and the preparation method, the operation method is simple, the cost is low, and the thickness, morphology and ingredients of the quantum dot thin film can be flexibly controlled, so that the optical consistency and space color uniformity of the white light quantum dot LED are improved; and the quantum dot thin film is prepared on a batch produced curved surface die, but not directly dispensed on the LED chip, so that the rejection rate of the quantum dot LED products is effectively decreased and the preparation method is suitable for the large-scale production of white light quantum dot LEDs.

The present invention belongs to the fields of pharmacology, medicine and medicinal chemistry. The present invention provides novel pharmaceutical compositions composed of solid nanoparticles dispersed in aqueous medium of substantially water insoluble pharmaceutical substances such as docetaxel with reduced Ostwald ripening.

The present invention relates to a dissolvent with effective ingredient extracted from the plant-and-animal raw material and the extraction method thereof. One subcritical fluid extraction solvent includes an extraction solvent of a compound or composition extracted from the raw material containing compound or composition as component element, and the solvent is mainly characterized in that the liquid sulfur hexafluoride works as the extraction solvent. The invention also includes a method for extracting the subcritical fluid extraction solvent. The advantage of the invention is that the extraction and separation of the target component in the natural product are optionally executed to further increase the extraction rate of the intermediate product and the usage factor of the raw material while the unique dissolving character of the sulfur hexafluoride and the mixed solvent thereof to the liposoluble active ingredient is used. The physical features of strong dissolving capacity and low boiling point of the sulfur hexafluoride and the mixed solvent thereof are used to reduce the consumption quantity of the energy source, dissolvent of the system and the cost, and increase the market competition ability of the intermediate product.

The invention provides production equipment and method of polyamide 5X. The production equipment comprises a concentration device, a prepolymerization device, a pressure reducing device, a separating device and a final polymerization device which are connected in sequence. The concentration device, the prepolymerization device, the pressure reducing device, the separating device and the final polymerization device are adopted in the production equipment of polyamide 5X, operation of all production links is guaranteed, and the production equipment and method are especially suitable for producing polyamide 5X.