194results about How to "Easy and efficient to prepare" patented technology

A difluorophosphate salt, which is expensive and not readily available, can be produced with a high purity readily and efficiently from inexpensive and readily available materials. A nonaqueous electrolyte secondary battery that exhibits low-temperature discharge and heavy-current discharge characteristics and high-temperature preservation and cycle characteristics without impairing the battery safety. A hexafluorophosphate salt is reacted with a compound having a bond represented by the following formula (1) in the molecule: Si-O-Si (1). A nonaqueous electrolyte used for nonaqueous electrolyte secondary batteries including a negative electrode and a positive electrode that can occlude and discharge ions, and a nonaqueous electrolyte is prepared from a mixture obtained by mixing at least one nonaqueous solvent, a hexafluorophosphate salt and a compound having a bond represented by the following formula (1), and removing low-boiling compounds newly formed in the system, the low-boiling compounds having a lower boiling point than that of the compound having the bond represented by the formula (1): Si-O-Si (1).

The present invention relates to a mold for the manufacture of an electrophoresis cassette (10), the mold comprising a body having a cassette molding part formed on one face thereof, the cassette molding part being surrounded by a peripheral sheet engaging portion extending in a plane located at a different elevation than the cassette molding part to provide for substantially uniform stretching of the sheet on the cassette molding part. The present invention also relates to a molding method for the manufacture of an electrophoresis cassette, a method for filing an electrophoresis medium into an electrophoresis cassette and to a comb (22) for an electrophoresis cassette adapted to be removably inserted into the cassette comprising at least one tooth (32) having protrusion (104) provided thereto for preventing the electrophoresis medium gel attachment to the comb.

A drill bit having a shank portion and a cutting portion, which cutting portion generally has at least one cutting edge and a chip flute that has a helical portion. The drill bit has at least one straight coolant channel that has a coolant exit orifice disposed at least partially in the flute and oriented toward the cutting edges to supply coolant thereto to cool the cutting edges and chips produced during a cutting operation.

The invention provides a cermet composite material substrate which comprises a ceramic base body and a metal heat-conduction-enhancing body. The metal heat-conduction-enhancing body is distributed uniformly and vertically penetrates the ceramic base body. The invention also provides a manufacturing technology of the cermet composite material substrate. The manufacturing technology includes: 1) preparing a water-based tape-casting slurry material; 2) carrying a tape casting process to the slurry material; 3) performing directed condensation; 4) performing a freeze-drying process; 5) performing a ceramic green body sintering process; and 6) preparing a cermet substrate in a manner of metal liquid-phase infiltration. Through combination of tape-casting freeze-drying moulding and liquid-phase infiltration, the cermet composite material substrate can be manufactured conveniently and efficiently so that requirements of some electronic devices on high-heat-conductivity substrates are satisfied.

A piston for an air spring of a heavy-duty vehicle includes a sidewall and a central hub. The sidewall and the central hub are attached to a first bottom plate of the piston. A top plate is removeably attached to a top portion of the sidewall and a top portion of the central hub. A bottom portion of said central hub includes a second bottom plate that is recessed relative to the first bottom plate for attachment to a piston mounting pedestal that is in turn mounted to a beam of a suspension assembly of the heavy-duty vehicle.

A high efficient organic modifier for acidic soil is prepared by taking crop straws as raw materials and is characterized by the steps of drying and crushing straws of legume crops, putting into a heating furnace, and carrying out indirect heating for dry distilling and charring at 350 DEG C for four hours. The high efficient organic modifier for acidic soil is completely made from crop straws without any other matters added, is processed and prepared by employing prior equipment and technology, and features abundant raw materials and convenient preparation.

An ink tank cartridge for use in an ink jet recorder has a container having exterior walls, a porous member is stored in the container, an ink supply port that extends through one of the exterior walls of the body to supply ink to the exterior of the cartridge, and a packing member, disposed within the ink supply port and having an opening therethrough and a rib formed on a upper surface. A pressing member may be provided to bias the packing member against an inner surface of the ink supply port. The ink tank cartridge can be assembled to limit the occurrence of air bubbles in the ink.

A spindle body defining a central axis and having a hydraulic motor assembly operably mounted thereon. At least a portion of the hydraulic motor assembly is rotatable relative to the spindle body about the central axis. A plurality of hydraulic passages extend within the spindle body. Each of the passages includes axial and lateral sections. The axial sections are in fluid communication with the hydraulic motor assembly and define a first centerline extending substantially parallel with the central axis. Each of the lateral sections are in fluid communication with one of the axial sections and form a port on an outer surface of the spindle body. The lateral sections also each define a second centerline wherein the second centerlines are positioned in mutually parallel planes and each of the first centerlines and the central axis are substantially parallel with each of the mutually parallel planes. A method of manufacture is also disclosed.

A method for preparing a soft magnetic composite material through hot pressing includes the following steps: dispersing particle soft magnetic powder into a dispersing medium, adding a coupling agent to conduct surface processing, conducting separation to obtain magnetic powder wrapping the coupling agent, conducting washing and drying through absolute ethyl alcohol to obtain the coupling agent modified magnetic powder, mixing the epoxy resin and an epoxy hardener to obtain an epoxy resin system mixture, mixing the coupling agent modified magnetic powder and the epoxy resin system mixture according to the proportion to obtain mixed slurry containing the magnetic powder and the epoxy resin system mixture, pouring the mixed slurry into a container, conducting vacuumizing, arranging the container into a constant temperature oven to conduct procuring to obtain composite slurry obtained through procuring, transferring the procured composite slurry into a mould, and conducting solidification and die pressing through a hog pressing machine to obtain the soft magnetic composite material. The method is simple in process, low in cost, favorable for operation and capable of achieving good magnetic performance and dynamic strength of the composite material by adjusting the content of the magnetic powder. The shape is controllable, and the mechanical performance is good.

The invention provides a strain of Aspergillus nidulans mutant, Aspergillus nidulans ZJB09223, and a fermentation method for preparing Echinocandin B by using the strain. The strain is preserved in China Center for Type Culture Collection with address of Wuhan University, Wuhan, China and zip code of 430072, and has a preservation number of CCTCC NO:M 2012300, and the collection date is 25, July, 2012. The invention employs a LiCl / UV / sodium nitrite compound mutation combined with resistance screening to obtain the Aspergillus nidulans mutant ZJB09223; the mutant strain is capable of efficient production of Echinocandin B, and is convenient for culture. The preparation process of Echinocandin B is simple and efficient, can obtain high-purity Echinocandin B and has good application prospects.

The invention provides a silver nano superstructure array. The silver nano superstructure array is arranged on the surface of a substrate. The invention also provides a preparation method for the silver nano superstructure array. The preparation method comprises the following steps of: putting a patterned silicon wafer into a silver ion-cysteine complexing solution with the pH value of 10.0 to 11.0; and culturing the patterned silicon wafer at the temperature of between 4 and 45 DEG C for 1 to 3 days to obtain the silver nano superstructure array. The invention further provides application ofthe silver nano superstructure array to surface enhanced Raman spectrum (SERS) detection and solar batteries. The silver nano superstructure array prepared by the method has high sensitivity and highly uniform SERS detection effect.

The invention relates to a polyvinyl alcohol-borax microsphere and a preparation method thereof. In particular, the technical method adopts borax as the crosslinking agent to prepare a polyvinyl alcohol microsphere by means of water-in-oil reversed phase suspension polymerization. The method consists of: taking liquid paraffin-sorbitan monooleate system as the dispersion phase, adopting a polyvinyl alcohol water solution as the polymerization phase, and using borax as the crosslinking agent, subjecting them and polyvinyl alcohol to an esterification crosslinking reaction in an acidic condition, employing sodium phosphate as the pH adjusting agent and the curing agent, and leaving a microsphere to cure, thus obtaining the polyvinyl alcohol-borax microsphere. In the invention, borax is adopted as the crosslinking agent, which is non-toxic and non-simulating to human bodies, thus avoiding using dialdehyde, diacyl chloride and other crosslinking agents having toxicity to human bodies and stimulation to the skin, as well as potential safety hazards. The prepared polyvinyl alcohol microsphere has good thermal stability, no bacterium, no toxicity, no pyrogen, and good biocompatibility.

An examination light apparatus including a touch-less control component that enables a user to control the apparatus without requiring physical contact between the user and the apparatus. The apparatus employs an LED control component that is configured to adapt its electrical interface to a variable quantity of light emitting diodes in order to interface with each of a plurality of lamp heads that each can include a unique arrangement and quantity of light emitting diodes. The light emitting diodes (LEDs) provide a high level of light quality, quantity and intensity (luminosity) while requiring low power consumption and low space and weight requirements and are employed without requiring a cooling fan. Uniform mechanical and electrical interfaces between the control component and other portions of the examination lamp provide for efficient and simple manufacturing of various examination light configurations.

The invention provides a city space growth ring map making and analyzing method. The method comprises the steps of importing three-dimensional vector information data of a city into a geographic information system to form a map base map module; performing geographic information analysis of building distribution on buildings of different construction ages, performing city space growth ring history slice auto-correlation analysis on the basis of the geographic information analysis, superposing the analysis results and converting the results into contour lines, and establishing a city space growth ring three-dimensional analysis module based on the contour lines to form a city space growth ring analysis information module; establishing layers of different attributes for different objects of city space growth ring analysis information and city vector information, performing information data superposition according to geographic coordinates and displaying a city space growth ring map. The method correlates the city space growth ring analysis results and the geographic information, realizes geographic space demonstration of the city space growth ring analysis, can make thematic maps efficiently and conveniently, and can widely meet the current requirements of city planning and design engineering practices.

A composite horseshoe having a rigid base member and a resilient member disposed within a groove formed in the base member. The resilient member is bonded to the base member by a layer of adhesive having a substantially consistent thickness. The consistent thickness of the adhesive layer can be obtained by the use of spacing elements such as glass beads. The resilient member may be a rubber insert and be formed out of an automobile tire or by molding a rubber compound.

This invention relates to cross-linked block polymer anion exchange membrane, a preparation method and applications thereof. According to the method, during the membrane preparing, a chloromethylatedblock polymer is simultaneously cross-linked and aminated by using a one-step method; after the membrane is formed, the membrane is further quaternized with tertiary amine; and alkalization is performed to obtain the cross-linked anion exchange membrane. According to the present invention, the polymer is chloromethylated by using the environmentally-friendly low-toxicity 1,4-dichloromethoxybutaneas a chloromethylating agent, the cross-linking and amination of the polymer is performed with the tertiary amine during the membrane forming, and after the membrane forming, the re-amination is performed with the tertiary amine so as to increase the number of the quaternary ammonium groups; with the method, the cross-linking and the quaternization are performed simultaneously during the membraneforming, such that the mechanical strength and the dimensional stability of the cross-linked membrane are improved, and the quaternization efficiency is effectively increased; and the obtained cross-linked anion exchange membrane has high conductivity, and has potential application prospects in alkaline anion exchange membrane fuel cells.

The invention provides a preparation method of difluorophosphate. The preparation method comprises the following steps: (A) mixing a non-aqueous solvent, fluoride salts, and compounds having a structure represented by the formula (I), and stirring to obtain suspension liquid; (B) introducing PF5 gas into the suspension liquid, heating the suspension liquid to carry out reactions, and performing recrystallization to obtain difluorophosphate. In the formula (I), R1 to R6 individually represent H, a C1-C50 hydrocarbyl group, a C1-C50 substituted hydrocarbyl group, or a group having a structure represented by the formula (II); or two or more of R1 to R6 are combined with each other to form a ring structure, in the formula (II), R7 to R9 individually represent H, a C1-C50 hydrocarbyl group, or a C1-C50 substituted hydrocarbyl group, or one or more of R7 to R9 is further substituted by a group having a structure represented by the formula (II).

A drill bit having a shank portion and a cutting portion, which cutting portion generally has at least two cutting edges, each with an at least partially spiraled or helical flute extending therefrom to the shaft portion. The drill bit has coolant channels that extend from the shaft portion and run substantially straight. The coolant channels have outlet openings that are arranged in the flutes and oriented toward the cutting edges. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

An examination light apparatus including a touch-less control component that enables a user to control the apparatus without requiring physical contact between the user and the apparatus. The apparatus employs an LED control component that is configured to adapt its electrical interface to a variable quantity of light emitting diodes in order to interface with each of a plurality of lamp heads that each can include a unique arrangement and quantity of light emitting diodes. The light emitting diodes (LEDs) provide a high level of light quality, quantity and intensity (luminosity) while requiring low power consumption and low space and weight requirements and are employed without requiring a cooling fan. Uniform mechanical and electrical interfaces between the control component and other portions of the examination lamp provide for efficient and simple manufacturing of various examination light configurations.

Novel crystal modifications of (5S)-5-[4-(5-chloro-pyridin-2-yloxy)-piperidine-1-sulfonylmethyl]-5-methyl-imidazolidine-2,4-dione are disclosed together with processes for preparing such modifications, pharmaceutical compositions comprising such a modification, and the use of such a modification in therapy.

The invention discloses a derivant for 2-deoxy-D-ribose, which is a compound as shown in the constitutional formula A on the right; R is selected from CH3(CH2)n-, CH3(CH2)n-Y-CH2-, X-CH2-, CH3(CH2)nCH(X)-, X2-CH-, CH3(CH2)nC(X)2- or CX3-; wherein, Y is selected from oxygen or sulfur; X is selected from fluorine, chlorine, bromine or iodine; n is equal to 0-5. The invention also provides the preparation method and the application of the compound with the general formula A. The compound with the general formula A includes Alpha anomer, Beta anomer and the mixture thereof.

A piston for an air spring of a heavy-duty vehicle includes a sidewall and a central hub. The sidewall and the central hub are attached to a first bottom plate of the piston. A top plate is removeably attached to a top portion of the sidewall and a top portion of the central hub. A bottom portion of said central hub includes a second bottom plate that is recessed relative to the first bottom plate for attachment to a piston mounting pedestal that is in turn mounted to a beam of a suspension assembly of the heavy-duty vehicle.

An inductive element comprises at least two core-parts including a magnetically permeable material and at least one winding of an electrical conductor which can be a foil winding, a stranded wire (litz) winding or a conventional wire winding. Each core-part has an elongated center piece with an outer winding surface. At each of its longitudinal ends, the center piece has a contact element with a lateral contact surface. The winding is wound directly on the core-parts without a bobbin or the-like. The core-parts of the inductive element are arranged with their longitudinal axes essentially in parallel in a manner that the lateral contact surfaces of each contact element abut on a lateral contact surface of another core-part. Such an inductive element can be manufactured by co-axially arranging the core-parts and using them as a roll-shaft. After the windings have been applied to the core-parts, they can be rearranged, i.e. “flipped over,” in a stack-like arrangement in order to form an inductive element.

An inductive element comprises at least two core-parts including a magnetically permeable material and at least one winding of an electrical conductor which can be a foil winding, a stranded wire (litz) winding or a conventional wire winding. Each core-part has an elongated center piece with an outer winding surface. At each of its longitudinal ends, the center piece has a contact element with a lateral contact surface. The winding is wound directly on the core-parts without a bobbin or the-like. The core-parts of the inductive element are arranged with their longitudinal axes essentially in parallel in a manner that the lateral contact surfaces of each contact element abut on a lateral contact surface of another core-part. Such an inductive element can be manufactured by co-axially arranging the core-parts and using them as a roll-shaft. After the windings have been applied to the core-parts, they can be rearranged, i.e. “flipped over,” in a stack-like arrangement in order to form an inductive element.

The invention discloses a coal mine fully-mechanized excavating working face air flow field mechanical control device which comprises a straight line rail, an air flow field adjusting air cylinder, asupporting frame, a straight line displacement mechanism and a mounting rod. The straight line displacement mechanism is arranged between the supporting frame and the straight line rail, the air flowfield adjusting air cylinder comprises an air cylinder air outlet, an air cylinder frame and a negative pressure air cylinder, the upper end of the mounting rod is fixedly connected with the lower endof the air cylinder frame, the air cylinder air outlet comprises a blade connecting ring, an outer blade and inner blade, an outer blade drawing line adjusting mechanism is arranged between the air cylinder frame and the mounting rod, a straight line displacement brake mechanism is arranged between the supporting frame and the mounting rod, a rotatable adjusting mechanism is arranged between thesupporting frame and the air cylinder frame, a rotating brake mechanism is arranged on the mounting rod, and a pitching adjusting mechanism is arranged on the rotating brake mechanism. The device is convenient to mount and use, high in reliability, full air field air flow characteristics and gas and coal dust migration rules can be changed, working efficiency is improved, safety of coal mine fully-mechanized excavating surface is ensured, energy is saved, and green ventilation is achieved.

The invention discloses a derivative of 2-deoxy-D-ribose, a preparation method and an application thereof. The derivative is a compound shown as the formula V, wherein R1 and R2 are respectively selected from CH3(CH2)nCO-, CH3(CH2)n-Y-CH2CO-, X-CH2CO-, CH3(CH2)nCH(X)CO-, X2-CHCO-, CH3(CH2)nC(X)2CO-, or CX3CO-; Y is selected from oxygen or sulfur, X is selected from fluorine, chlorine, bromine or iodine, n is from 0 to 5, and R1 is not equal to R2. The invention also discloses a preparation method, an application of the derivative, and a method for preparing decitabine by using the derivative as an intermediate.

The invention provides a preparation method of 1,1-difluoroethylene. The 1,1-difluoroethylene is generated by virtue of gas phase dehydrochlorination on 1,1-dichloro-1-chloroethane (HCFC-142b) under the action of a catalyst, wherein the catalyst is composed of a main catalyst and an auxiliary catalyst; the main catalyst is a Ba-based catalyst and the auxiliary catalyst is a transitional metal and lanthanide series metal fluoride. The preparation method of 1,1-difluoroethylene provided by the invention has the characteristics of being high in yield, is unlikely to block pipelines, mild in conditions of preparation process, simple to operate, high in selectivity of products and the like.

The invention discloses a preparation method of 1,1-difluoroethylene. The preparation method comprises following steps: a composite catalyst is introduced into a tubular reactor, 1, 1-difluoro-1-chloroethane or 1, 1-difluoro-2-chloroethane is taken as a raw material and is introduced into the tubular reactor for gas phase catalytic cracking so as to obtain 1,1-difluoroethylene. The composite catalyst is a metal composite fluoride. The method is low in reaction temperature, high in product selectivity, high in yield, mild in operation technical conditions, and simple in operation, and the reproducibility of the adopted catalyst is high.

An adjustable steering column assembly with a steering shaft extending through a jacket member. An elongate locking member extends through two opposed sidewalls and a compression member positioned between the sidewalls. One of either the sidewalls or the compression member is fixed relative to the jacket member while the other is fixed relative to the vehicle structure. Spacers are located on opposite sides of the compression member between the compression member and the two sidewalls. First and second abutment surfaces are engaged with outward facing surfaces of the sidewalls and are coupled to the elongate locking member. An actuator assembly moves the locking assembly between unlocked and locked positions. In the locked position, the abutment surfaces bias the sidewalls inwardly to firmly engage the compression member between the spacers.