215results about How to "Avoid vaporization" patented technology

Disclosed is a natural-superlattice homologous single-crystal thin film, which comprises a complex oxide which is epitaxially grown on either one of a ZnO epitaxial thin film formed on a single-crystal substrate, the single-crystal substrate after disappearance of the ZnO epitaxial thin film and a ZnO single crystal. The complex oxide is expressed by the a formula: M¹M²O₃ (ZnO)_m, wherein M¹ is at least one selected from the group consisting of Ga, Fe, Sc, In, Lu, Yb, Tm, Er, Ho and Y, M² is at least one selected from the group consisting of Mn, Fe, Ga, In and Al, and m is a natural number of 1 or more. A natural-superlattice homologous single-crystal thin film formed by depositing the complex oxide and subjecting the obtained layered film to a thermal anneal treatment can be used in optimal devices, electronic devices and X-ray optical devices.

A method and apparatus are provided for performing a medical procedure on a patient, for example a dermatological procedure, by use of electromagnetic radiation (EMR) having a relatively low peak power, and in particular a peak power low enough so as not to result in a phase change in the heater or chromophore absorbing radiation which would result in a significant reduction in its absorption, and of relatively long duration which is generally greater than, sometimes significantly greater than, the thermal relaxation time of the irradiated target.

The present invention provides a thermal cycling device including: a heat exchanger body (3) having a longitudinal axis and longitudinally divided to provide at least two segments which are able to be heated to different temperatures so that said body has peripheral surfaces of different temperatures; a conduit (2) extending about said body so as to be in thermal contact with said peripheral surfaces; a first delivery device to deliver a first fluid to said conduit to cause said fluid to pass therealong and therefore change in temperature as the fluid passes said segments; and a second delivery device to deliver a second fluid to said conduit so as to flow with said first liquid and therefore also change in temperature. The fluid then leaves the device by conduit (4). The invention also is directed to an injector means for use in the thermal cycling device of this invention, comprising: a septum (26); a needle (20) which is able to pierce the septum; a reservoir (27) in fluid contact with septum (26) having an inlet (28) and an outlet (30); wherein when in use, the needle is urged through the fluid in said reservoir and then through the septum while continually purging the reservoir with said purge fluid. The present invention also includes a scanning detector (5) fitted to the outside of the heat exchange body (3) which monitors the course of reaction inside the conduit (2).

The invention provides a natural fiber crystal variation modified liquid medium filling and recovery system based on paralleled multiple buses and multiple modified kettles. The natural fiber crystal variation modified liquid medium filling and recovery system based on the paralleled multiple buses and multiple modified kettles comprises a liquid medium low-pressure mass flow liquid-filling bus, a liquid medium high-pressure small flow liquid-filling bus, a liquid medium low-pressure mass flow liquid-return bus, a liquid medium low-pressure small flow liquid-filling bus, a gas phase balance bus, and n modified kettles which are in parallel connection on the buses, and n >=1. The invention further provides a natural fiber crystal variation modified liquid medium filling and recovery method based on the paralleled multiple buses and multiple modified kettles. The liquid-filling process comprises mass flow balance liquid filling and small flow pressure boosting liquid filling, and the liquid return process comprises mass flow pressure relief liquid return, mass flow balance liquid return, small flow balance liquid return, and cage shift liquid exhaustion. The natural fiber crystal variation modified liquid medium filling and recovery system and the method based on paralleled multiple buses and multiple modified kettles are good in modified effect, small in system energy consumption, and high in production efficiency.

A system and process for dispensing a liquid agrochemical such as ammonia into a field is disclosed. The ammonia is placed in a vessel under sufficient pressure to maintain a substantial portion of the ammonia in a liquid form. From the pressurized vessel, the ammonia is fed to a distribution manifold where it is ultimately injected into a soil through a plurality of dispensing tubes. A constant pressure flow rate control device is placed at each dispensing tube for metering the amount of ammonia fed to the soil. Furthermore, the outlet flow of each constant pressure rate control device is made to vaporize nearby the inlet flow path to create a heat exchange effect thereby cooling the inlet flow. In particular, the flow control devices allow ammonia to be dispensed from the system while maintaining sufficient back pressure and temperature within the distribution manifold to maintain the ammonia in a liquid form. By maintaining the ammonia in a liquid form, uniform and accurately controlled flow rates can be dispensed from the dispensing tubes.

A method capable of stably manufacturing a SiC single crystal in the form of a thin film or a bulk crystal having a low carrier density of at most 5×10¹⁷/cm³ and preferably less than 1×10¹⁷/cm³ and which is suitable for use in various devices by liquid phase growth using a SiC solution in which the solvent is a melt of a Si alloy employs a Si alloy having a composition which is expressed by Si_xCr_yTi_z wherein x, y, and z (each in atomic percent) satisfy

0.50<x<0.68, 0.08<y<0.35, and 0.08<z<0.35, or  (1)

0.40<x≦0.50, 0.15<y<0.40, and 0.15<z<0.35.  (2)

x, y, and z preferably satisfy 0.53<x<0.65, 0.1<y<0.3, and 0.1<z<0.3.

The invention discloses a recovery system and a recovery method of a by-product in polycrystalline silicon production. The system and the method are used for recycling the hydrogen, chlorosilane and chlorine hydride gas in the reducing tail gas produced during the polycrystalline silicon production. The recovery method comprises the following steps: a condensing step for separating most of chlorosilane from the reducing tail gas; an adsorption step for removing all chlorine hydride and the rest chlorosilane from the reducing tail gas by using an absorption unit after the condensing step to obtain the pure hydrogen; a regenerating step for regenerating the absorption unit by using the hydrogen so as to remove the chlorosilane and chlorine hydride absorbed by the absorption unit, and obtaining the regenerative gas containing hydrogen, chlorosilane and chlorine hydride; and a cold hydrogenating step for directly feeding the regenerative gas as the raw material of the cold hydrogenation reaction to a cold hydrogenation reactor. According to the system and method provided by the invention, the HCl can be singly separated from the tail gas without an adsorption-de-adsorption device so as to prevent the HCl from being condensedly separated and gasified, and a great number of heat and cooling capacity is saved.

A system and method of pumping liquified gas. Applicants systems includes a liquified gas storage vessel and a smaller high pressure high pressure liquified gas storage cylinder. Applicant provides a pump between the two vessels for pumping the liquified gas from one vessel to the other. Applicants system also includes at least one heat exchanger through which the liquified gas passes as it is pumped from one vessel to the other, which heat exchanger cools the liquified gas that is being pumped to a temperature typically below the vaporization point of the gas.

Various methods and system are described for a fuel system which includes a fuel composition sensor and a fuel lift pump disposed upstream of the sensor. The system may be operated in each of three different modes of operation. In each of the modes, a fuel lift pump voltage is adjusted responsive to a fuel capacitance output by the sensor, while a variable such as sensor temperature or fuel pump pressure is maintained depending on the mode of operation.

A compact case having an airtight structure, refillable with a capsule cosmetic includes: a lower case having a hole and an elastic locking member on a bottom; an upper case connected to the lower case by a first hinge pin to be opened and closed; a capsule cosmetic for refilling including a capsule and a liquid cosmetic material impregnated in a porous pad within a capsule, sealed with a sealing member removed upon the first makeup application, and fitted in the hole of the lower case with a bottom of the capsule exposed to the outside and a locking groove on the capsule elastically detachably locked to the locking pins; an internal container having an inner wall and an outer wall for forming a fitting groove and disposed outside the capsule cosmetic; and a lid connected to the internal case by a second hinge pin to be opened and closed, having a puff seat on a to and a fitting rib, which is fitted in the fitting move of the internal container, on a bottom, in which the capsule cosmetic and the lid are sealed by being elastically in close contact with sealing projections, respectively, on the inner wall and the outer wall of the internal container. Therefore, it is very simple to replace a capsule cosmetic in the lower case for refilling and the cosmetic material is not vaporized by the sealing structure, so it is possible to use the cosmetic, maintaining the quality of the cosmetic for a long period of time.

A method for producing silicon tetrafluoride includes combining uranium oxyfluoride and silicon dioxide; heating the combination below the melting point of the uranium oxyfluoride to sufficiently react the uranium oxyfluoride and the silicon dioxide to produce non-radioactive silicon tetrafluoride and an oxide of uranium; and removing the silicon tetrafluoride.

The invention discloses a fluid distributor for a plate heat exchanger. A distribution hole (11) for a refrigerant to flow into a refrigerant channel (202) is arranged at the position of the plate heat exchanger corresponding to the refrigerant channel (202) of the plate heat exchanger, and the fluid distributor comprises a driving component (2) and an execution component (3) for adjusting the size of an opening of the distribution hole (11) under the driving of the driving component (2). The plate heat exchanger can adjust pressure and temperature of the refrigerant, the refrigerant evenly enters a heat exchange channel, and heat exchange stability of the plate heat exchanger is improved. The invention further discloses the plate heat exchanger comprising the fluid distributor and a control method for the plate heat exchanger. The plate heat exchanger comprising the fluid distributor and the control method for the plate heat exchanger have identical effect.

The invention discloses a pressure limiting type liquid column separation preventing air valve. According to the pressure limiting type liquid column separation preventing air valve, an upper cavity (15) and a lower cavity (14) are connected through a flange, and the lower cavity (14) is further communicated with a pressure relief chamber (16); an air inlet and outlet channel is formed in the lower portion of the upper cavity (15), a floating plate (5) is connected with the top of the upper cavity (15) through limiting springs (7), and a supporting plate (4) used for supporting the floating plate (5) is arranged at the top end of the air inlet and outlet channel; an air inlet and outlet channel is formed in the upper cavity (15), a guide plate (3) with a U-shaped section is arranged in the air inlet and outlet channel, a metal ball (1) is arranged in the guide plate (3), a shaft lever (2) is arranged in the center of the bottom of the metal ball (1), and the lower end of the shaft lever (2) is a free end. The pressure limiting type liquid column separation preventing air valve has the advantages that the pressure limiting type liquid column separation preventing air valve is installed along a water supply pipeline, efficiency can be improved, and a pump starting water hammer can be avoided; when an accident occurs and a pump stops, by means of the adjustment of the floating plate, when negative pressure appears in the pipeline, the vaporization phenomenon can be avoided by absorbing a large amount of air; when the pressure in the pipeline is too high, a buffering function is achieved through micro air exhaust, a closing water hammer is avoided, and part of high-pressure water in the pipeline can be drained through the pressure limiting type liquid column separation preventing air valve to lower pressure.

The invention discloses a multifunctional cold-circulating bundling microwave treatment probe comprising an operating handle and a bundle, wherein the bundle consists of two ore more than two liquid medium strengthened hollow cooling microwave probes; the center of the bundle is provided with a multifunctional passage used for infusing a liquid medium or embedding a solid medium into a target tissue or carrying out temperature measurement or tissue biopsy; and the multifunctional passage and the bundle are fixed on the operating handle. The invention can outstandingly enlarge the melting volume of a microwave tissue and has a function of enhancing the treatment effect by infusing the liquid medium or embedding the solid medium into the target tissue and multiple functions, i.e. the biopsy, the temperature measurement, and the like.

The invention particularly relates to a combined mechanical seal device which comprises a moving ring, a static ring assembly, a static ring housing, a floating ring assembly and an O-shaped rubber ring. The static ring assembly is arranged in the static ring housing and comprises an end face block assembly, a rotation-preventing pin, a spring and a damping belt. The end face block assembly comprises a static ring, a static ring seat, a film box assembly and a rear ring which are arranged in sequence. The damping belt is located in an annular groove of the inner surface of the static ring housing. The floating ring assembly comprises a floating ring, a cover plate and a floating ring housing, wherein the floating ring penetrates through a rotor to be arranged in the floating ring housing, and a cover plate penetrates through a rotor to be fixedly arranged on two sides of the floating ring housing respectively. A cooling backflow channel comprises a bearing axial gap, a gap between the moving ring and a pressing ring, a static ring seat balance hole gap, a radial gap between a static ring seat and the static ring housing, a backflow channel I, an accumulated liquid cavity and a backflow channel II which are communicated in sequence. The combined mechanical seal device achieves long-service-life, low-friction and zero-leakage work of a mechanical seal under the working conditions of high temperature and high pressure.

The invention relates to a lithium ion battery, and aims at providing a high-power lithium ion battery system with a laminated battery structure. The battery system comprises at least two single battery structures, adjacent single battery structures are separated by baffle plates, the laminated battery structure is formed by repeated arrangement of the single battery structures; electrolyte anodeand cathode outlet and inlet channels are respectively arranged on the baffle plates on two ends, two sides of the baffle plates arranged at the middle are both provided with an electrolyte flow path, and the flow paths arranged at the two sides are not communicated; and a piezoelectric pump and a radiating fin are respectively arranged between the electrolyte cathode outlet channel and electrolyte anode inlet channel and between the electrolyte anode outlet channel and the electrolyte cathode inlet channel, or the positions of the piezoelectric pump and the radiating fin are exchanged. By virtue of the battery system, the temperature rise of the lithium ion battery can be effectively suppressed during heavy current charging and discharging, the vaporization of an electrolyte is avoided, the explosion of the lithium ion battery duo to the rise of an internal pressure is effectively prevented, and the use safety of the lithium ion battery is improved.

A method for producing uranium oxide includes combining uranium oxyfluoride and a solid oxidizing agent having a lower thermodynamic stability than the uranium oxide after "oxide"; heating the combination below the vapor point of the uranium oxyfluoride to sufficiently react the uranium oxyfluoride and the oxidizing agent to produce uranium oxide and a non-radioactive fluorine compound; and removing the fluorine compound after "compound".