Pregnane glycoside compounds with orthoester groups and applications thereof

The invention relates to pregnane glycoside compounds with orthoester groups, medical compositions with the compounds and applications of the medical compositions in the preparation of immunosuppressive agents, and in particular relates to pregnane glycoside compounds which are extracted from Periploca plants and contain the orthoester groups, medical compositions with the compounds, and applications of the medical compositions in the preparation of the immunosuppressive agents which are used to prevent and/or treat immunological rejection after cell/organ transplantation, or autoimmune diseases which contain rheumatoid arthritis, multiple sclerosis, autoimmune hepatitis, etc.

Preparation method of flame-retardant magnesium alloy

The invention discloses a preparation method of a flame-retardant magnesium alloy and relates to a magnesium alloy with aluminum as a minor main component. The method comprises the steps of weighing a magnesium ingot, an aluminum ingot, an Mg-Ca master alloy with the calcium content of 20 wt percent and an Mg-Y master alloy with the yttrium content of 25 wt percent as raw materials for feed preparation according to the mass percentage of component elements in the target magnesium alloy, wherein the target magnesium alloy comprises component elements in percentage by weight: 90.7-92.7 percent of Mg, 6.0 percent of Al, 0.3 percent of Mn, 0.5-1.5 percent of Ca and 0.5-1.5 percent of Y, the purity of a magnesium ingot is 99.99 percent, the purity of an aluminum ingot is 99.99 percent, and the purity of a manganese sheet is 99.99 percent; and putting all the raw materials in a gas protection melting furnace, carrying out smelting on the raw materials, then adding a refining agent into the gas ...

Caffeoyl substituted pentacyclic triterpenoid derivatives and purpose thereof

The invention belongs to the technical field of medicine, and concretely relates to caffeoyl substituted pentacyclic triterpenoid derivatives as shown in a formula I and a purpose thereof in preparing medicaments or health products for preventing and treating brain injury and/or neurological dysfunction and/or cognitive dysfunction caused by cerebral ischemia, hypoglycemia and cerebral anoxia. Experiments verify that the derivatives is capable of protecting nerve cells under conditions of hypoglycemia and hypoxia, can substantially improve neurological damage induced by cerebral ischemia, and thus is expected to be developed as medicaments for preventing and treating the brain injury caused by the cerebral ischemia, the hypoglycemia and the cerebral anoxia as well as improving corresponding neuroethology functions.

Preparation method of nano porous copper

The invention discloses a preparation method of nano porous copper, and relates to manufacture of alloy with pores, in particular to a method for preparing the nano porous copper by adopting a free dealloying technology. The preparation method comprises the following steps of: firstly according to the atomic percent of all elements in target alloy: 50.00-55.00% of Cu, 40.00-45.00% of Hf and the balance of Al, weighing copper pieces with the mass percent purity being 99.99%, hafnium particles with the mass percent purity being 99.99% and aluminium blocks with the mass percent purity being 99.99%; putting raw materials of master alloy in a vacuum electric-arc furnace, smelting to prepare Cu-Hf-Al master-alloy casting ingot; then preparing a Cu-Hf-Al amorphous alloy strip by using the master-alloy casting ingot; and finally carrying out dealloying treatment with low-concentration hydrofluoric acid solution to prepare the nano porous copper belt. The preparation method disclosed by the invention ...

Lubricating oil purification system

The invention discloses a lubricating oil purification system. The lubricating oil purification system comprises a plurality of turbines, a filtering device and an oil purification box, wherein the turbines comprise first turbines and second turbines; each first turbine is provided with a first oil storage box; each second turbine is provided with a second oil storage box; the filtering device is respectively connected to the first oil storage boxes and the second oil storage boxes through oil delivery pipelines, and is used for filtering lubricating oil in the first oil storage boxes and the second oil storage boxes; the oil purification box is respectively connected to the first oil storage boxes and the second oil storage boxes through oil delivery pipelines, is connected with the filtering device through an oil delivery pipeline, and is used for storing clean lubricating oil obtained after filtering of the filtering device. The lubricating oil purification system provided by the invention ...

Electrode plate for super capacitor and preparation method of electrode plate

The invention relates to an electrode plate for a super capacitor and a preparation method of the electrode plate, and relates to materials for electrode components of an electrochemical capacitor. The electrode plate is made of a compound applied and pressed on a nickel screen and capable of producing MnO<2> on the surface of nano porous copper, wherein the mass percent of nano porous copper is 25 to 75. The preparation method comprises the steps as follows: the nano porous copper is prepared by a dealloying method; then nano porous copper and manganese dioxide mixed powder is prepared; finally, dried nano porous copper and manganese dioxide mixed powder is mixed with binder polytetrafluoroethylene according to the mass ratio of 95 to 5, anhydrous ethyl alcohol is taken as a dispersing agent and ground for 10 min in an agate mortar to mix to be pasty, and then evenly coated on a nickel screen with the dimension of 30 mm* 10 mm, the electrode plate is formed by the pressing of the powder ...

Power head for geophysical prospecting driller

A power head for a geophysical prospecting driller mainly solves the problem that an existing power head is poor in drilling efficiency when encountering a special geology. The power head for the geophysical prospecting driller is characterized in that a rotating axis of a hydraulic motor is connected with a main transmission shaft, a driving bevel gear is coaxially fixed at the lower end of the main transmission shaft, a rotary transmission shaft is connected with the main transmission shaft, two driven bevel gears are mounted on two sides of a transverse supporting shaft via bearings, two vibration eccentric blocks are respectively fixed outside the two driven bevel gears, the driven bevel gear set and the driving bevel gear are meshed with each other and rotate in opposite directions, two ends of the transverse supporting shaft penetrate sidewalls of a power box and are fastened by a left press over and a right press cover respectively, and all parts above are interconnected and placed ...

Forced lubricating device

The invention discloses a forced lubricating device which comprises a lubricating box body and a forced tube the middle of which is communicated, wherein the lubricating box body is arranged at the front end of the forced tube; the forced tube comprises a cone-shaped inlet, a work zone, a high pressure zone, an air vent and a combination position; the cone-shaped inlet is formed at the front end of the work zone; the high pressure zone is arranged at the rear end of the work zone; the air vent is communicated with the high pressure zone; and the combination position is arranged at the rear end of the high pressure zone. According to the forced lubricating device disclosed by the invention, high temperature generated by a wire drawing mould in the wire drawing process is utilized and transferred to the forced tube, and the narrow space of the forced tube is combined, thus wire drawing powder is molten to form a semi-solid state so that the wire drawing powder is completely adhered to the ...

Spiral distributor

The invention provides a spiral distributor, comprising a steel structure bracket, a distribution hopper, a distribution hopper upper framework, a cart walking device, a trolley travelling device and a stirring shaft assembly. The spiral distributor is characterized in that a plurality of weighing sensors are arranged between the distribution hopper upper framework and the trolley travelling device; the distribution hopper upper framework and the distribution hopper are connected through a plurality of oil cylinders; a plurality of guide frames are respectively fixedly connected with the distribution hopper; a guide connection structure is arranged between each guide frame and a sliding board matched with the guide frame; a plurality of splitting shaft assemblies are mounted on the distribution hopper; each splitting shaft assembly is provided with a stirring cylinder, a splitting shaft, a spiral blade and two second bearing bases; the splitting shaft of each splitting shaft assembly is ...

Quasi-crystal alloy nodulizer for nodular cast iron and preparation method thereof

The invention relates to manufacturing of cast iron alloys, particularly a quasi-crystal alloy nodulizer for nodular cast iron and a preparation method thereof. The nodulizer is a magnesium-base quasi-crystal alloy composed of the following components in percentage by mass: 45-50% of Mg, 45% of Zn, 5% of Y and 0-5% of Ce. The as-cast structure of the magnesium-base quasi-crystal alloy is composed of a pentagonal/hexagonal mixed block quasi-crystal phase, alpha-Mg and a eutectic phase. The preparation method comprises the following steps: preparing an Mg-Zn-Y(-Ce) quasi-crystal alloy mother alloy cast ingot, and beating the quasi-crystal alloy mother alloy cast ingot into a block to obtain the quasi-crystal alloy nodulizer product for nodular cast iron. The melting points of the nodulizer component elements are low, so that abundant electric power can be saved in the smelting process; the nodulizer is free of silicon, thereby increasing the consumption of the foundry return, and lowering ...

Rust removing steel brush

The invention discloses a rust removing steel brush, which comprises a framework, bristle and a cover plate. Installing holes are arranged on the surface of the framework; the bristle is arranged in the installing holes; edges of the framework press and fix the bristle through the cover plate; a steel brush action face formed by ends of the bristle has an inward arc in the direction vertical to the periphery, and a radius of the inward arc is of 30-40mm; the bristle has two shapes, one kind of the bristle is cotton-shaped steel wires subjected to bend shaping, and the other kind of the bristle is steel wire strands which are subjected to spirally tightening at root parts and decentralizing at top parts. The rust removing steel brush provided by the invention changes the material and the configuration mode of the surface bristle of the traditional steel brush and adopts 72B galvanized wires with a diameter of 0.4mm, so that over scratch on the surfaces of the wires is avoided and the service ...

Calcium and cerium added flame-retardant magnesium alloy and preparation method thereof

The invention discloses a calcium and cerium added flame-retardant magnesium alloy and a preparation method thereof. The flame-retardant magnesium alloy comprises the following elements in percentage by mass: 85.90-88.03% of Mg, 8.18-9.15% of Al, 0.43-0.87% of Zn, 0.16-0.38% of Mn, 2.20-2.50% of Ca, 1.00-1.20% of Ce. The preparation method of the alloy is implemented through compositely adding Mg (29.9wt% of Ca)-Mg (30.8wt% of Ce) intermediate alloy into an AZ91D magnesium alloy melt, so that a dense protective oxide film is generated on the surface of the magnesium alloy melt, thereby preventing the alloying approach of magnesium alloy burning; the magnesium alloy can be smelted under the condition of no fusing agent or gas protection measures. Through carrying out an appropriate heat treatment process on a magnesium alloy sample, the cast magnesium alloy disclosed by the invention both has good flame retardant properties and good mechanical properties.

Applications of stilbene compounds of lignum pini nodi as immunosuppression active ingredients in preparation of medicines or health products

The invention belongs to the field of pharmacy and medical technology, and more specifically relates to applications of stilbene compounds, such as pinosylvin, pinosylvin monomethyl ether (PME) and pinostilbene, in preparation of medicines or health products which are used for preventing or treating autoimmune diseases such as rheumatoid arthritis, and applications in preparation of medicines used for preventing or treating transplantation rejection. It is determined by in vitro immunosuppression biological activity screening and animal in vivo biological activity determination that the stilbene compounds possess no obvious cytotoxicity, and is capable of inhibiting proliferation of T lymphocytes significantly. Oral medication administration is capable of alleviating severity of mouse arthritis induced by bovine II -typed collagen. The stilbene compounds can be used a kind of novel natural immunosuppressive agent, and used for preventing or treating autoimmune diseases such as rheumatoid ...

Multifunctional soil cleaner for long spiral drilling machine

A multifunctional soil clearer for a long spiral drilling machine mainly solves the problem in the prior art that manually cleaning a drilling machine is labor-wasting, time-wasting and unsafe. The multifunctional soil clearer for the long spiral drilling machine is characterized by comprising an oil cylinder hinge seat, a support hinge seat, an oil cylinder, a motor, a soil stop plate, reinforcing ribs, a plurality of soil discharging rods, driving shaft and supports. A cylinder block end of the oil cylinder is fixed connected with the oil cylinder hinge seat, a piston rod end of the oil cylinder is connected with a soil stop plate hinge seat, the reinforcing ribs, the soil stop plate and the supports are integrated, the upper portion of the driving shaft is connected with support hinge seat, the lower portion of the driving shaft is arranged on the support, the motor is coaxially connected with the driving shaft, and the soil discharging rods are crosswise vertically fixed on the middle ...

Method for preparing nano-porous copper

The invention discloses a method for preparing nano-porous copper, which relates to manufacturing for metals with nanoscale porosity. The method comprises the following steps of: calculating the masses of the needed raw materials according to the atomic percent at. % of each element in a target alloy Cu (having an atomic percent of 50.00%)-Zr (having an atomic percent of 42.50-50.00%)(-Al (having the remainder atomic percent)), weighing copper sheets, zirconium grains and aluminium blocks, and mixing to obtain a mother alloy raw material; then smelting the mother alloy raw material in a vacuum arc furnace to prepare a Cu-Zr(-Al) alloy ingot; then preparing a Cu-Zr(-Al) amorphous alloy strip by smelting-spinning equipment; and then preparing a nano-porous metallic copper strip by one-step dealloying, cleaning, and then storing the cleaned nano-porous metallic copper strip in a vacuum chamber having a vacuum degree of 0.1 MPa for the later use, so as to avoid oxidation. With the adoption ...

Pump port structure

The invention provides a pump port structure, which belongs to a water pump accessory in mechanical equipment. The pump port structure comprises a flange, a sealing member, a spacer sleeve and a port ring, wherein a sealing region is formed between the flange and the spacer sleeve; the gap between the port ring and a pump body impeller is 0.025-0.1 mm; and the gap between the spacer sleeve and a pump shaft is 0.025-0.1 mm. According to the pump port structure provided by the invention, the water return quantity at the position of the port ring is greatly reduced, the power loss is reduced, and the pump port structure has both the features and the functions of sliding bearing type structures.

Preparation method of magnesium alloy

The invention discloses a preparation method of a magnesium alloy, and relates to a magnesium alloy with aluminum as a secondary component. The preparation method comprises the steps of weighing commercial AM50 magnesium ingots, pure SiO2 and a commercially available magnesium-cerium lanthanum intermediate alloy according to the mass percents of the component elements of the prepared magnesium alloy; preparing and refining a magnesium alloy solution after the commercial AM50 magnesium ingots and the pure SiO2 raw material are subjected to pretreatment; finally pouring to prepare a magnesium alloy blank, wherein component elements of the prepared magnesium alloy according to the mass percent comprise 4.4-5.4% of Al, 0.24-0.60% of Mn, 0.5-3% of Si, 1-3% of Ce, 1-3% of La, not greater than 0.22% of impurity element Zn, not greater than 0.01% of impurity element Cu, not greater than 0.005% of impurity element Fe, not greater than 0.002% of impurity element and the balance of Mg, and the sum ...

Spice for cigarettes and extracting method and application thereof

The invention relates to spice for cigarettes and an extracting method and application of the spice, belonging to the technical field of tobacco processing, wherein the spice for the cigarettes is a solvent extract of silkworm excrement waste liquid obtained by extracting chlorophyll from the silkworm excrement; solvent is water, ethanol, acetone or methylene dichloride; the extracting method comprises the following steps: carrying out distillation and extraction to the silkworm excrement waste liquid obtained by extracting chlorophyll from the silkworm excrement for 2-5 hours by water, ethanol, acetone or methylene dichloride, and obtaining the spice after removing the solvent. According to the application of the spice for the cigarettes, the spice is used for flavoring the tobacco; dosage of the spice is 0.025-0.1% of tobacco shred weight; by dint of assay determination, the spice provided by the invention mainly contains twenty-odd aromatic matters such as irisone, furanone, isophorone ...

Coating-type light conversion film and preparation method thereof

The invention relates to a coating-type light conversion film and a preparation method of the coating-type light conversion film. The invention belongs to the technical field of an agricultural film. An inner layer of the coating-type light conversion film is a mechanical property layer; a middle layer is a heat-insulating light conversion layer; a secondary outer layer is a coating carrier layer, and the outer layer is a film coating layer. The preparation method of the coating-type light conversion film comprises the following steps of: (1) preparing a multifunctional master batch with a long service life, heating an internal mixer, charging and agitating, discharging and pelletizing; (2) preparing the master batch with the long service life and efficient light conversion, heating the internal mixer, charging and agitating, discharging and pelletizing; (3) manufacturing the coating light conversion film, weighing the inner layer, the middle layer and the secondary outer layer according ...

Preparation method of medical magnesium-base non-crystalline material

The invention discloses a preparation method of a medical magnesium-base non-crystalline material, and relates to a non-crystalline material. The preparation method comprises the following steps of: calculating and preparing materials depending on atom percentages of elements in an alloy Mg66-xZn30Ca4Mx (x=0.1-3.0), wherein M represents Nd, Zr or Ce, and the adopted raw materials are pure Mg: 99.99%, pure Zn: 99.99%, an intermediate alloy of Mg-19.29% Ca and any one of the following intermediate alloys: an intermediate alloy of Mg-24.31% Nd, an intermediate alloy of Mg-20.95% Ce or an intermediate alloy of Mg-31.81% Zr; melting and preparing an Mg-Zn-Ca-M alloy ingot in a crucible resistance furnace; preparing an Mg-Zn-Ca-M non-crystalline alloy strip which is 1-3mm wide and 25-35 microns thick as a medical magnesium-base non-crystalline material for spare through a melt spinning machine.

Preparation method of magnesium alloy

The invention discloses a preparation method of a magnesium alloy, and relates to magnesium alloys. The preparation method comprises the following steps: weighing a magnesium ingot with the purity of 99.99%, a zinc ingot with the purity of 99.99%, an aluminum ingot with the purity of 99.99%, an Mg-Y intermediate alloy with the yttrium content of 25wt% and an Mg-Ca intermediate alloy with the calcium content of 20wt% in required mass as raw materials placed in a smelting furnace to be smelted according to the mass percent of constituent elements in a target alloy: 92.0-93.0% of Mg, 2.0% of Zn, 4.0% of Al, 1.0% of Y and 0-1.0% of Ca; then, pouring the raw materials into an iron casting die to prepare a mother alloy ingot; then, melting the mother alloy ingot by a melting furnace; and finally, carrying out press casting by a die-casting machine under set pressure casting technical parameters to prepare an Mg-Zn-Al-Y-(Ca) magnesium alloy material with high toughness. The method disclosed by ...

Composite abrasion-resisting corrosion-resisting self-lubricating film and preparation method thereof

The invention relates to a composite abrasion-resisting corrosion-resisting self-lubricating film and a preparation method thereof. Laser transformation hardening is conducted on a steel material surface, and low temperature ion nitriding and ion sulphuration processing is conducted on a transformation hardening layer to obtain the composite abrasion-resisting corrosion-resisting self-lubricating film. The laser transformation hardening low temperature ion nitriding and sulphuration composite abrasion-resisting corrosion-resisting self-lubricating film can further improve abrasion-resisting lubricating performance of the steel material surface, and a structural diagram is shown as graph 1. The composite abrasion-resisting corrosion-resisting self-lubricating film is novel in structure, has no obvious boundary between the laser transformation hardening layer and the nitriding/sulphuration layer, and is good in combination with the base body. Due to the fact that the laser transformation ...

Visual oil-water mixing and stirring device used for laboratory

The invention relates to a visual oil-water mixing and stirring device used for a laboratory. The device comprises a kettle body, a kettle cover, a corrosion-sample clamp, three-blade stirring paddles and a temperature and rotating speed control box. A clamping sleeve is disposed outside the top of the kettle body. The kettle cover is fixed to the clamping sleeve through bolts to seal the kettle body. A vertical through hole is disposed in the center of the kettle cover. A bearing which bears a rotating shaft to rotate is fixed in the through hole. An electrical motor drives the rotating shaft to move through a conveyer belt. The lower part of the rotating shaft is provided with the corrosion-sample clamp and the two three-blade stirring paddles. The corrosion-sample clamp is sandwiched and fixed to the rotating shaft by the two three-blade stirring paddles. The three-blade stirring paddles and the corrosion-sample clamp rotate along with the rotating shaft synchronously. The kettle cover ...

Preparation method of composite material of epoxy resin and closed-cell foamed aluminum

The invention discloses a preparation method of a composite material of epoxy resin and closed-cell foamed aluminum, and relates to a composite material which is formed by a high polymer material and a foamed metal material. The preparation method comprises the following steps of: degreasing and decontaminating closed-cell foamed aluminum pieces by using 0.1mol/L of sodium hydroxide alkali liquid; neutralizing the alkali liquid on the closed-cell foamed aluminum pieces by using 0.01mol/L of hydrochloric acid; mixing the epoxy resin E-44 and a curing agent according to a mass ratio of 1:1; proportioning the closed-cell foamed aluminum pieces and the epoxy resin with the curing agent in a mold in a water bath at 70 DEG C according to a volume ratio of 1:1 or 3:1; after bubbles float up, taking out the mold from the water bath; standing for one week at normal temperature so as to obtain a dispersed embedded type epoxy resin and closed-cell foamed aluminum material. By utilizing the method, ...

Soft soil area small machine set thermal power plant power distribution room underground facility foundation construction process

The invention discloses a soft soil area small machine set thermal power plant power distribution room underground facility foundation construction process. The process comprises the step 1, excavating a low-bearing-capacity soft soil layer on a good soil area upper layer in a power distribution room range; the step 2, sequentially pouring a power distribution room underground facility foundation bottom plate, a power distribution room underground facility foundation lateral wall and a power distribution room underground facility foundation top plate at the portion where the soft soil layer is excavated and reserving equipment cavities between the bottom plate, the lateral and the top plate; and the step 3, distributing partition walls or embedded parts in the equipment cavities according to cable or equipment penetrating requirements. The process unloads a foundation, enables the foundation bottom plate to be buried deep, enables the load bearing area of the foundation bottom plate to ...

Wind power generator paddle changing sliding bearing structure designing and manufacturing method

The invention discloses a novel wind power generator paddle changing sliding bearing belonging to the field of wind power generators and bearings. The sliding bearing is composed of an outer sleeve 1, an outer sleeve 2 and an inner sleeve 3, wherein the outer sleeves are fixed on a hub, and the inner sleeve is connected with a paddle; a layer of antiwear self-lubricating composite material is arranged between inner and outer bearing sleeves and is bonded on inner cavities of an the outer sleeve 1 and an outer sleeve 2, the antiwear self-lubricating composite material and the inner sleeve form a sliding pair. The novel wind power generator paddle changing sliding bearing is mainly characterized in that the inner sleeve of the sliding bearing is driven through a gear, the angle of a wind turbine blade is changed, and the powder of a wind driven generator is adjusted.

Composite sulfide solid lubricating film and preparation method thereof

The invention discloses a composite sulfide solid lubricating film and a preparation method thereof. A technical scheme provided in the invention is as follows: the composite sulfide solid lubricating film is characterized by comprising a laser cladded layer which is obtained by carrying out laser cladding on a substrate and a sulfide layer obtained through sulfurizing. The invention has the following beneficial effects: the composite sulfide solid lubricating film is formed on a laser cladded Ni-based metal ceramic coating after sulfurizing, there is no obvious border between the composite sulfide solid lubricating film and the laser cladded Ni-based metal ceramic coating, and thus the lubricating film has a compact structure and has strong bonding capacity with the laser cladded layer; metallurgical bonding between the Ni-based metal ceramic laser cladded layer and the substrate can be realized; the laser cladded layer is rich in the elements of Fe, W and Mo, the composite sulfide solid ...

Preparation method of medical iron-based non-crystal material

The invention relates to a preparation method of a medical iron-based non-crystal material and belongs to a non-crystal alloy based on iron as a main component. The preparation method comprises the following steps of: calculating and preparing required raw materials according to atom percentage at.% of various elements in target alloy (Fe75Si10B15)98Nb2: iron particles, silicon particles, boron particles and niobium particles, wherein the mass percentage of the purities of all the raw materials is 99.99%; placing all the raw materials in a vacuum arc furnace, and melting under the protection of high-purity argon to obtain Fe-Si-B-Nb alloy ingot; and then carrying out blow casting on melted Fe-Si-B-Nb alloy in a vacuum melt-spun machine to form a (Fe75Si10B15)98Nb2 non-crystal alloy strip serving as the medical iron-based non-crystal material. The preparation method disclosed by the invention overcomes the defects that the preparation process by using the existing titanium alloy as a biological ...

Heat treatment technology for enhancing foam magnesium alloy

The invention provides a heat treatment technology for enhancing foam magnesium alloy, relating to the manufacture of alloy with open/close porosity. The heat treatment technology for enhancing the foam magnesium alloy comprises the steps of performing insulation treatment on a base body material of the foam magnesium alloy for 8-30 hours under the temperature of 400 DEG C to 600 DEG C by using a chamber type electric resistance furnace; and under the condition of room temperature, cooling the base body material of the foam magnesium alloy obtained in the first step and subjected to the insulation treatment to the room temperature so as to manufacture the foam magnesium alloy material which has good corrosion resisting performance in a corrosive medium. The heat treatment technology improves the corrosion resisting performance of the foam magnesium alloy, simultaneously guarantees the mechanical performance of the foam magnesium alloy and overcomes the defect that the corrosion resisting ...

Complete equipment for producing foam aluminum

The invention relates to complete equipment for producing foam aluminum, and relates to manufacture of an alloy with an open or closed gap. The complete equipment mainly comprises a mould conveying device, a machining platform, a seal box type heat preserving furnace, two same stirring devices, two same smelting devices, a shaping device, a cooling device and a control platform, wherein the two same stirring devices can vertically lift. According to the invention, the operation of the integral equipment is controlled by the independently arranged control platform through a circuit, machining processes, namely metal smelting, pouring, mould preheating, tackifying, forming stirring, heat preservation foaming shaping and cooling, and equipment systematization are designed to the same machining platform so that the three dimensions, automation and continuity of smelting, stirring, pouring, foaming heat preservation and cooling procedures are realized, so that the defects that the full-automatic ...

USE OF 3,8,12,14, 17,20-OXO-SUBSTITUTED PREGNENE GLYCOSIDES IN THE PREPARATION OF HEALTHCARE PRODUCTS, FOOD ADDITIVES AND PHARMACEUTICALS FOR THE INHIBITION OF APPETITE

The present invention relates to the use of 3,8,12,14,17,20-oxo-substituted pregnene glycosides having the following formula I in the preparation of healthcare products, food additives and drugs for losing body weight, controlling body weight and inhibiting appetite of human beings or animals, wherein, Ris a saccharide group, and Ris an acyl group. 2. The use according to claim 1 , wherein claim 1 , in formula I claim 1 , the saccharide group is consisted of one or more sugar moieties selected from glucose claim 1 , cymarose claim 1 , diginose claim 1 , mannose claim 1 , xylose claim 1 , rhamnose claim 1 , arabinose claim 1 , and glucuronic acid; and the acyl group is selected from acetyl claim 1 , cinnamoyl claim 1 , 3 claim 1 ,4-dimethyl-2-amylene acyl claim 1 , nicotinoyl claim 1 , and benzoyl.4. A composition in the preparation of healthcare products claim 1 , food additives and pharmaceuticals for losing body weight claim 1 , controlling body weight and inhibiting appetite of human beings or animals claim 1 , wherein claim 1 , the composition contains 3 claim 1 ,8 claim 1 ,12 claim 1 ,14 claim 1 ,17 claim 1 ,20-oxo-substituted pregnene glycosides according to . The present invention relates to the use of natural 3,8,12,14,17,20-oxo-substituted pregnene glycosides for the inhibition of appetite. In particular, the present invention relates to the use of 3,8,12,14,17,20-oxo-substituted pregnene glycosides in the development of healthcare products, food additives and pharmaceuticals for reducing or controlling body weight and inhibiting appetite of human beings or animals, wherein, the 3,8,12,14,17,20-oxo-substituted pregnene glycosides are separated from medicinal and/or edible plant species.Obesity means that the adipose tissue in human body is too much for various reasons and goes beyond the average level of normal human being. Obesity may affect the health of organism and is an important factor inducing serious diseases and death. In the whole world, there are ...

ALUMINIUM ALLOY REFINER AND PREPARATION METHOD AND APPLICATION THEREOF

The present invention provides an aluminium alloy refiner. The aluminium alloy refiner is characterized by comprising 7 to 10 parts of Ti, 2 to 3 parts of B and the balance of Al by weight, for example, 8 parts of Ti, 3 parts of B and 89 parts of Al by weight. The aluminium alloy refiner is prepared by rapid solidification. After the refiner is added to A356.2 aluminium alloy, the grain size of the alloy is significantly reduced than that of the aluminium alloy treated by a conventional refiner. Moreover, the solubility of metals in liquid may be increased due to rapid solidification, such that the refiner is more easily absorbed by the aluminium alloy melt after being added to the aluminium alloy. 1. An aluminium alloy refiner , characterized in that the aluminium alloy refiner comprises 7 to 10 parts of Ti , 2 to 3 parts of B and 87 to 91 parts of Al by weight;preferably, the aluminium alloy refiner comprises 7.5 to 9 parts of Ti, 2.5 to 3 parts of B and 88 to 90 parts of Al by weight;further preferably, the aluminium alloy refiner comprises 8 to 8.5 parts of Ti, 2.5 to 3 parts of B and 89 to 90 parts of Al by weight;for example,(1) the aluminium alloy refiner comprises 8 parts of Ti, 3 parts of B and 89 parts of Al by weight;(2) the aluminium alloy refiner comprises 7 parts of Ti, 2 parts of B and 91 parts of Al by weight;(3) the aluminium alloy refiner comprises 7.5 parts of Ti, 2.5 parts of B and 90 parts of Al by weight;(4) the aluminium alloy refiner comprises 8.5 parts of Ti, 2.5 parts of B and 89 parts of Al by weight;(5) the aluminium alloy refiner comprises 9 parts of Ti, 3 parts of B and 88 parts of Al by weight; and(6) the aluminium alloy refiner comprises 10 parts of Ti, 3 parts of B and 87 parts of Al by weight.2. The aluminium alloy refiner according to claim 1 , characterized in that the aluminium alloy refiner is composed of alpha-Al phases claim 1 , granulous TiAlphases and TiBparticle phases.3. The aluminium alloy refiner according to claim 1 , ...

Method of refining aluminum alloy

The invention provides a method of refining aluminum alloy, which is characterized in that aluminum-based nanometer quasicrystal alloy is used as an aluminum alloy refiner to refine the aluminum alloy; the aluminum-based nanometer quasicrystal alloy does not comprise Si, Fe or Cr; the aluminum-based nanometer quasicrystal alloy consists of (1) Al; (2) Mn and (3) La and/or Ce. The refiner selected in the invention is rare earth-containing alloy which has a strong refinement ability on the aluminum alloy, and is nanometer quasicrystal; after adding the rare earth-containing alloy to melt, the element distribution of the rare earth-containing alloy is more uniform than that of traditional alloy; and nanometer quasicrystal particles substantially increase the number of heterogeneous nucleation particles and improve the grain refinement effect of the aluminum alloy.

Pig production method by using detachable and washable wet curtain

A pig production method by using a detachable and washable wet curtain for intensive pig farming The detachable and washable wet curtain includes a wet curtain mounting frame ( 1 ), a spray tube ( 4 ), a plurality of rotatable reels ( 7 ) equivalent to sleeves, a reel ( 6 ) with a buckle, a wet curtain net ( 8 ), a reel ( 10 ) with a buckle, and a manual handle ( 9 ). The wet curtain is formed by a low-cost common material, namely a plastic net and the like, is convenient to mount, detach, and wash, and is not prone to making dust, scale, algae, mosquitos, and the like accumulate thereon, thus reducing the replacement cost and use cost. Therefore, a new cooling method based on the wet curtain is provided for pig farms in summer, and it is also suitable for other livestock farms in summer.

Cynomoriaceae extract and use in treating erectile dysfunction

An extract from the herb of the family Cynomoriaceae, preferably Cynomorium songaricum Rupr, which is also commonly known as Suo Yang in Chinese Medicine, has been prepared and found to have medicinal properties. The extract is preferably prepared from stems of the plant, and is most preferably extracted with an solvent including butanol, herein abbreviated as “BuSY”. The extract is shown to have efficacy in the treatment of erectile dysfunction and the enhancement of male sexual health in vertebrates. A pharmaceutical preparation of this extract can be formulated with a pharmaceutically acceptable carrier to treat erectile dysfunction in host animals. The components of the nutraceutical extract can be combined in differing combinations to enhance and/or improve male sexual health.

The medical use of 11,11`-dideoxyverticillin a

Utilisation medicale de 11,11'-dideoxy verticilline a