217results about How to "Easy to freeze" patented technology

A desired property for a metal gate electrode layer is that it can cover a three-dimensional semiconductor structure having a microstructure with high step coverage. Another desired property for the metal gate electrode layer is that the surface of a deposited electrode layer is flat on a nanometer scale, enables a dielectric layer for electrical insulation to be coated without performing special planization after deposition of the electrode layer. Furthermore, another desired property for the metal gate electrode layer is that it has the similar etching workability to materials used in an ordinary semiconductor manufacturing process. Furthermore, another desired property for the metal gate electrode layer is that it has a structure in which diffusion of impurity is suppressed due to homogeneity thereof and the absence of grain boundaries. It was found that an amorphous metal electrode is most suitable for realizing the metal gate electrode layer satisfying the above-mentioned properties and thereby the present invention was achieved.

An auto-nucleating device includes a tube containing a crystalline cholesterol matrix. The ends of the tube are closed by a membrane that is impermeable to the cholesterol but permeable to liquids contained in a cryopreservation vessel. The auto-nucleating device provides a site for ice nucleation during freezing of the liquid within the vessel. One such cryopreservation vessel is a flexible vial having a closed port at one adapted to be pierced by a needle to withdraw the liquid within, and an opposite end that is initially open to receive the liquid. Another vessel includes an adaptor mounted to liquid container with a tubular branch closed by a needle septum and another tubular branch provided with a barbed fitting for engaging a flexible tube that terminates in a needle septum. In another embodiment, the vessel includes an inlet and vent branch at the top of the container and an outlet septum at a bottom opening.

Embodiments of the present invention generally relate to methods, devices, and systems for reducing a pigmentation of a skin of a patient. In some embodiments, freezing of the skin may be desirable to effect the hypopigmentation of the skin of the patient. Generally, embodiments may limit supercooling (or promote freezing) of the skin of the patient during a cooling treatment. In some embodiments, coupling fluids are provided to reduce a thermal contact resistance between a cooling treatment probe and the skin of the patient to improve cooling treatment. Optionally, a fluid carrier may be provided to help retain the coupling fluid at the treatment site. In some embodiments, the coupling fluid may include ice nucleating agents to promote ice crystal formation in the coupling fluid during cooling treatment. The ice crystal formation in the coupling fluid may progress into the skin to limit supercooling of the skin during treatment.

The invention discloses a micro-electro-mechanical system (MEMS) strain type icing sensor and a detection method, and relates to icing thickness detection technologies. The MEMS strain type icing sensor comprises a dual-rectangle-shaped frame, a peripherally clamped square flat film, detection resistors, reference resistors, an ice melting resistor and electrode leads. A detection system is formed by the MEMS strain type icing sensor and an interface circuit. When an icing phenomenon is detected, a Wheatstone bridge is formed by the detection resistors and the reference resistors, and the detection resistors are used to sense stress changes of the surface of the flat film, which are caused by the icing, thereby achieving the aim of icing detection. On the one hand, the interface circuit is used for providing constant current drive for the Wheatstone bridge; and on the other hand, the interface circuit is used for amplifying voltage signals output by the bridge and conducting temperature compensation on the voltage signals.

The invention provides a solidification method for preparing para-aramid by adopting dry jet-wet spinning. The method is characterized by comprising the following specific steps: extruding a PPTA-H2SO4 spinning solution from a spinneret plate; enabling liquid flow extruded from the spinneret plate to vertically pass through an air layer and feeding to a solidification bath; leading out through a godet wheel, so as to obtain a nascent fiber; and washing, winding and drying, so as to obtain a para-aramid fiber precursor, wherein the solidification bath is sulfuric acid solution and is formed by sulfuric acid and water; the mass fraction of the solidification bath is 2.0%-15.0%; and the temperature of the solidification bath is 1-12 DEG C. The fineness of the fiber can be significantly reduced under the condition of the solidification bath; the strength of the para-aramid fiber is improved; the apparent defects of the fiber can be reduced; and the fiber quality is improved, thus the stability of a spinning process and the quality of a fiber product can be effectively improved.

The invention relates to a cryogenic pulverizer and its working method, comprising a motor, a hopper, a material pre-cooling room, a material freezing room, a low-temperature mill, an induced draft fan, a cyclone separator, a bag filter, a liquid nitrogen tank and a compressor. Machine, the cryogenic pulverizer of the present invention and its working method, use liquid nitrogen to cool and freeze the material to be pulverized so as to achieve the brittleness required for the pulverization of the material, rich in resources and easy to separate, colorless, odorless and non-toxic gas, to avoid In addition, nitrogen is also a good anti-oxidant, which can prevent the finished powder material from being oxidized and deteriorated, and realize the recycling of nitrogen. In addition, the cooling capacity of the finished powder material is fully utilized to reduce energy consumption. save resources.

The present invention relates to a freezer unit. It includes a heat-insulating box body, feeding mechanism and discharge mechanism which are respectively placed in material inlet and material outlet of said heat-insulating box body, at least two circulation conveying mesh-belts mounted in the heat-insulating box body interior, evaporator positioned in heat-insulating box body interior and cold-air machine formed from fan group. The cold-air outlet of cold-air machine is communicated with air-collecting cavity positioned under the circulation conveying mesh-belt, the liquor supply tube of the evaporator and return tube are respectively connected with refrigerating machine group, first circulation conveying mesh-belt is driven by mechanical combined reciprocating vibration feeding device, and other circulation conveying mesh-belt is driven by electric speed-reducing machine. Said invention is high in freezing efficiency.

The invention relates to an ovarian large cortex piece vitrified cryopreservation protection liquid and a cryopreservation method thereof. Although the vitrified cryopreservation method is widely applied to experimental animals, a universal cryopreservation method and a standard cryopreservation liquid preparation scheme are absent at present, so that the sized transplantation subjected to vitrified cryopreservation is at a small-size stage, an ovarian small cortex piece has limited follicles, and the service life of the transplanted follicles is influenced. The invention provides vitrified cryopreservation protection liquid suitable for an ovarian large cortex piece, and gonadotropin is added on the basis of the common vitrified liquid. According to the vitrified cryopreservation protection liquid suitable for the ovarian large cortex piece, especially the ovaries of experimental animals, improved variety livestock and wild endangered species in sudden death are conveniently cryopreserved at the most proper osmotic equilibrium time of performing vitrified cryopreservation on the ovarian large cortex pieces of different sizes; and moreover, according to the method, the survival rate of the follicles can be improved, the blood reperfusion time of the transplant is shortened, and the survival rate of the cryopreserved ovarian transplantation in vivo is improved.

The invention belongs to the field of metallurgical mines, and particularly relates to a water-saving tailing discharge method. A place is selected according to the tailing pond address selection principle. A tailing pond, a primary dam, a floodwater drainage system, a seepage drainage system, a tailing conveying system, a tailing classification and condensation system, a water return system and other matched facilities are reasonably arranged according to terrain and geological conditions. The tailing conveying system comprises a section from a dressing plant to a hydrocyclone, a section from the hydrocyclone to a thickener, and a section form the underflow of the thickener to the tailing pond. Pumping or self-flowing conveying can be adopted for the conveying process of each section. The tailing classification and concentration involves the steps that ore pulp coming from the dressing plant is classified through the hydrocyclone; and overflow tailing ore pulp of the hydrocyclone is concentrated through the thickener. The water return system comprises a thickener overflow water return system and a tailing pond water return system. Return water can be conveyed to the mineral processing process to be recycled in a pumping or self-flowing conveying manner. The tailing pond formed through the method is good in anti-seismic property, high in return water utilization rate, low in dam body seepage line, large in anti-slide buckling safety factor, wide in application range and low in operation and management expense.

The invention discloses an Android process freezing and unfreezing device and method, and relates to the technical field of mobile terminals. The device comprises a freezing request module, a freezing processing module and an unfreezing module, wherein the freezing request module is used for sending a freezing request to an application process by a mobile terminal through communication; the application process comprises a work thread and a communication thread; the freezing processing module is used for judging whether the connection between the application process and another application process is completely processed or not through the communication thread, and freezing the work thread and keeping the activity state of the communication thread if the judging result is positive; and the unfreezing module is used for unfreezing the work thread when the communication thread receives a connection request from another application process, and carrying out freezing and unfreezing on the process through the communication thread. During the freezing, only the work thread is frozen and the communication thread is not frozen, so that the communication thread can be timely unfrozen when required, thereby improving the process freezing and unfreezing efficiencies, and greatly reducing the system risks caused by the freezing and unfreezing behaviors.

The present invention relates to an ultra-low temperature storage method of nutrient propagative flower plant lycoris radiate. Said method includes the following steps: bulb induction, pre-culture of shoot tip with root rudiment and bud rudiment, placing the above-mentioned pre-cultured shoot tip in pretreatment solution to make pretreatment at room temperature for 10-30 min, then placing it into vitrified protective agent to make ice bath treatment for 70-90 min, then transplanting said shoot tip into a freeze tube in which the precooled fresh vitrified protective agent is held and placing said freeze tube into liquid nitrogen so as to make storage.

The invention relates to exhaust-steam cooling equipment for a steam turbine in the power industry, in particular to an anti-freezing device for an air cooling island in a direct air cooling unit of a power station. The device includes an air cooling island condensation water header (1), a steam calandria radiator (2) and a steam distributing pipe device (3). The device is characterized in that fixed wind shields (5) and (6) are mounted on the periphery at an air outlet side of the air cooling island steam calandria radiator, and a louver-type shield device (4) is mounted above the steam calandria radiator. The device is characterized in that the structure is simple, the adjustment is flexible and convenient, and the response speed is high, solves the defects that the present air cooling island is incapable of adjusting heat preservation manually and the switch response speed of an electric rolling door is lower, further can prevent the problem that the windward side of the air cooling island is frozen easily in freeze-up, and completely solves the difficulties that the air cooling island is frozen to damage and the heat impact causes equipment damage when the standby equipment in freeze-up is put into operation.

The invention discloses puffed potato whole meal and preparation method of the puffed potato whole meal. The puffed potato whole meal is prepared by the following steps: cleaning potatoes; stewing; feeding the stewed potatoes at a cold outdoor air temperature, and freezing; transferring the thoroughly frozen potatoes inside, unfreezing, peeling and dewatering; and airing the dewatered potatoes on a heated brick bed, and preparing powder. The process disclosed by the invention is simplified; the production cost is low; the method is easy to popularize; the prepared puffed potato whole meal product is soft in texture, easy to dry, easy to crush, free of caking when being kneaded, and easy to knead, not easy to go bad and long in retention period and has the relatively white color.

The invention belongs to the field of freezing and provides a cell vitrification freezing liquid and a freezing method. The freezing liquid comprises a washing liquid, an equilibrium liquid and a vitrifying liquid. With the freezing fluid, the action time in the equilibrium liquid and the vitrifying liquid is shortened, and chemical toxicity of an osmosis protective agent is reduced. In addition,the operation is simple, and the cell survival rate is high.

The invention provides an ultrasonic reinforced freezing dough preparing apparatus and a method thereof.The apparatus of the invention comprises an ultrasonic wave device, a device for detecting temp. and a cooling cycle device; the method of the invention employs ethylene glycol solution as the freezing medium and the ultrasonic propagation medium, and in the process of immersing and freezing of dough, ultrasonic wave is applied.The apparatus has a simple structure and a simple and convenient operation and control. By adopting the apparatus and method of the invention, heat transferring in the freezing course and ice crystal core formation are both reinforced, comparing with the common freezing course, the freezing time of dough is reduced, ice crystals of big amount and small coarseness are formed in the frozen dough; furthermore, springiness of the frozen dough remains excellent and the quality of dough is improved.

The invention discloses a high-temperature-resistant paint for a hydraulic cylinder and a preparation method thereof. The high-temperature-resistant paint for the hydraulic cylinder is prepared from the following constituents in parts by weight: 58-60 parts of modified epoxy organic silicon resin, 22-24 parts of hydrogenated acrylonitrile butadiene rubber, 27-29 parts of bisphenol A epoxy resin, 12-14 parts of mica powder, 10-13 parts of butyl rubber, 5-7 parts of polydimethylsiloxane, 12-14 parts of phenylmethylsilane resin, 3-5 parts of dioctyl phthalate, 2-4 parts of copper powder, 2-4 parts of rutile type titanium dioxide, 1-3 parts of ceramic powder, 20-25 parts of deionized water, 2-4 parts of triethylene tetramine, 5-7 parts of triphenyl phosphite, and 1-3 parts of an auxiliary.

The invention discloses a preparation method of meal replacement powder. The preparation method comprises the steps of S1, cereal crushing; S2, cereal sterilization; S3, dry-wet separation; S4, water milling and screening; S5, product collection; S6, quick freezing of the product. The cereals are beaten and crushed, bran remaining on the surfaces of the cereals is removed, and large cereals are rapidly crushed, so that the surfaces of the cereals are clean. Meanwhile, the situation that a discharging port is blocked due to accumulation of large particles is avoided, the bacteria-free condition of subsequent production of the product is guaranteed through continuous sterilization, dry-wet separation is conducted on the sterilized product, a large amount of water is prevented from rapidly entering the grinding position, and therefore the concentration of a powder solution is guaranteed, and the situation that the drying efficiency is affected due to too low concentration is avoided. Dust raising and wet powder accumulation caused by too dry powder are avoided through water milling, normal production of the product is guaranteed, and in addition the production quality of the product is guaranteed.

The invention discloses an air bathing type gasifier easy to deice. The inlet ends of a plurality of heat exchange pipes are connected with a liquid inlet pipe after being connected in series, the outlet ends are connected with an air discharge pipe after being connected in series, a cross-shaped insert piece is arranged in each heat exchange pipe, fins are vertically and uniformly connected with the outer walls of the heat exchange pipes, wherein the heat exchange pipes are snake-shaped, the longitudinal gaps between the parallel sections shrink gradually along the liquid medium flow direction, and the fin number is increased gradually section by section; each cross-shaped insert piece is spiral so as to enable the liquid low-temperature medium to generate an obvious dispersion flow effect in the heat exchange pipe. According to the air bathing type gasifier easy to deice, the environment temperature at four sides of the air bathing type gasifier easy to deice descends slowly through expanding the longitudinal gaps between parallel sections of the heat exchange pipes near the inlet end and reducing the fin number at the inlet end, so that the air bathing type gasifier is not easy to deice; the air bathing type gasifier easy to deice has beneficial effects of simple structure, convenience in use, high heat exchange efficiency, low cost and the like, and the air bathing type gasifier easy to deice can be broadly used for different large, medium and small enterprises and public institutions.

The invention discloses a vitrification freezing preservation method of a small aqueous cell used for cloning domestic animals and belongs to the field of vitrification freezing preservation. The operation steps of the method are as follows: (I) liquid preparation; (II) vitrification freezing; (III) thawing. Compared with the prior art, the vitrification freezing preservation method of a small aqueous cell used for cloning domestic animals of the invention has the characteristics of low cost expense, simple method, needing no expensive instruments, good vitrification freezing preservation effect and high survival rate after thawing.