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125results about How to "Reduce interaction" patented technology

Segmented rotor type magnetic flux switching motor with hybrid excitation and magnetic adjustment method

The invention discloses a segmented rotor type magnetic flux switching motor with hybrid excitation and a magnetic adjustment method. The motor comprises a stator yoke, a permanent magnet, an exciting winding, an armature winding, a segmented rotor and a non-concentrating flux sleeve, wherein the stator yoke is of a 12-tooth structure and formed by arranging excitation teeth and armature teeth in a staggered mode; the permanent magnet is arranged in the excitation teeth, one surface of the permanent magnet is opposite to the rotor, and two sides of the permanent magnet are provided with concentrating flux bridges; the armature winding and the exciting winding are integrated windings and respectively wound on the excitation teeth and the armature teeth; the segmented rotor is arranged in the non-concentrating flux sleeve, thus the whole rotor forms a cylinder structure; the concentrating flux bridges at the two sides of the permanent magnet provide return circuits for electro-exciting magnetic fields generated by the exciting winding, thus permanent magnet magnetic fields are closed after passing through the permanent magnet, the stator yoke, air gaps and the segmented rotor in sequence, and electro-exciting magnetic fields are closed after passing through the stator yoke, the air gaps and the segmented stator; and a current of the exciting winding is adjusted to realize wide-range magnetic adjustment. The motor has the advantages of wider magnetic adjustment range, good fault-tolerant capability and small wind resistance and oil resistance and can be applied to the field of high-speed aviation.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Lightweight vitreous foamed ceramic

InactiveCN102399090AReduce interactionEasy Manufacturing ControlCeramicwareChina clayWaste material
The invention discloses improvement to lightweight vitreous foamed ceramics and is characterized in that: a lightweight vitreous foamed ceramic mainly comprises 50 to 95 wt % of ceramic walls, a floor tile grinding wet powder skeleton material, 5 to 50 wt % of china clay and/or talcum and/or bentonite and/or tremolite and/or saponite fine powder matrix material and 0 to 8 wt % of a foaming agent; the above-mentioned materials are mixed and sintered at a temperature equal to or above a vitrification point of the matrix material. According to the invention, composition and ratio are simplified, composing materials basically comprise only two materials, mutual influence between the materials is small, it is easy to control the process of manufacturing, and therefore, a preparation process has good stability and products of different batches have stable performance and good consistency; a main raw material is waste materials generated in the production of ceramics, and the raw material is easily available and enables preparation cost to be substantially reduced and primary minerals to be saved; tangent planes of a prepared product are basically of a uniform noncommunicating subtle enclosed foam structure, the prepared product has volume density (unit weight) of 0.35 to 0.48 g/cm<3>, compressive strength at normal temperature of 9.0 to 9.6 Mpa and a heat conduction coefficient at a temperature of 70 DEG C (on average) of 0.168 to 0.182 W(m.k), and the natural color of the product (without addition of pigments) is white and greenish and appears to be tattletale gray.
Owner:江苏赛宇环保科技有限公司

Aquatic amino acid preparation and preparation method and aquatic feed thereof

The invention relates to an aquatic amino acid preparation and a preparation method and aquatic feed thereof, wherein the aquatic amino acid preparation comprises an amino acid raw material and a capsule auxiliary material, and is an amino acid microcapsule preparation prepared by a preparation method of the microcapsule preparation. The preparation method comprises the following steps: (1) preparing the amino acid raw material and the capsule auxiliary material; (2) melting the capsule auxiliary material; (3) emulsifying, shearing and agitating the melted capsule auxiliary material and the amino acid raw material at high speed; (4) insulating heat for the mixed material and spraying to prepare microcapsule particles; and (5) cooling and sieving the microcapsule particles to collect the prepared finished products of the amino acid microcapsule preparation. The aquatic feed is the aquatic feed in which the amino acid microcapsule preparation is added. The aquatic amino acid preparationhas better slow release property, special controlled release property, good anti-water-solution-loss property and better free-running property, can effectively promote the synchronous absorption of exogenous amino acid and protein amino acid in the feed, and has the characteristics of low formula cost, high cultivation benefit and little influence on the cultivation water environment.
Owner:GUANGDONG HINAPHARM PHARMA CO LTD

Disposable Medical Supplies From Hydrolytically Biodegradable Plastics

InactiveUS20080255267A1Increase compatibilityReduce interactionEngine sealsSynthetic resin layered productsBiodegradable plasticStandard technique
Hydrolytically degradable polymers in the form of biodegradable disposable medical devices for use in medicine and laboratories such as syringes, test tubes, catheters, tubing, trays, medical fabrics, and gloves are described. The devices are formed in whole or in part of a hydrolytically degradable polymer. In the preferred embodiment, the devices or structural components thereof degrade in a period of weeks to months, preferably within a year and more preferably within six months of exposure to aqueous solutions. Conventional hydrolytically degradable polymers may be utilized or these may be modified to increase mechanical or processing characteristics, for example, using a polyfunctional branching agent and/or a chain extending agent. In one embodiment, the hydrolytically degradable polymer is a member of a new class of polyesters comprising an aliphatic dicarboxylic acid, an aliphatic diol and optionally, one or more bifunctional fatty acids such as ricinoleic acid and/or castor oil. The devices are prepared using standard techniques, such as by injection molding, extrusion or melt spinning. The devices can be formed entirely of the degradable polymer, or they can be coated with a polymer coating in order to increase the compatibility of and reduce the possibility for interaction between the surface of the device and liquids that may come in contact with the device, or they may include core or other internal structural member formed of either the biodegradable or non-biodegradable material.
Owner:MASSACHUSETTS INST OF TECH

File writing method and system for distributed storage system

The invention discloses a file writing method and system for a distributed storage system. The method comprises the following steps: a client sends a metadata request to a metadata server; the client judges whether the length of data to be written is larger than a preset data length threshold or not according to information of the data to be written in a message returned by the metadata server; if the length of data to be written is larger than the preset data length threshold, after the data to be written is written into a cache of the client, a file handle of the data to be written is immediately released, and dirty data is written into an object-based storage device (OSD); and if the length of data to be written is not larger than the preset data length threshold, after the data to be written is written into the cache of the client, the file handle of the data to be written is added into a delayed release link list, and when the number of file handles in the delayed release link list is larger than a preset handle number threshold, the file handles in the delayed release link list are released, and the dirty data is written into the OSD. The method and system adopting the technical scheme has the advantages that interaction between the client and the writing OSD is reduced during writing of a large number of small files, so that the small file writing performance is improved.
Owner:ZHENGZHOU YUNHAI INFORMATION TECH CO LTD

Multi-bit memory of semiconductor nano-array organic field-effect transistor and preparation method thereof

InactiveCN108258116ADevice structure optimizationReduce interactionSolid-state devicesSemiconductor/solid-state device manufacturingSemiconductor NanoparticlesLow-k dielectric
The invention provides a multi-bit memory of a semiconductor nano-array organic field-effect transistor and a preparation method thereof. The memory is composed of a substrate, a gate insulating layer, a charge storage layer, an organic semiconductor layer, and a source electrode and drain electrode that are arranged successively from bottom to top. The charge storage layer is a semiconductor nano-array film prepared by a low-dielectric-constant polymer film doped with semiconductor nanoparticles. In addition, according to the preparation method, a substrate doped with silicon heavily is coated and doped with a low-dielectric-constant polymer solution doped with semiconductor nanoparticles and then an organic semiconductor layer and source and drain electrodes are plated by means of vapordeposition to make a memory. According to the invention, the polymer is doped with the semiconductor nanoparticles and annealing is carried out to form the memory density of the nano-array optimized device; the multi-bit storage of the single device is formed, so that the switching speed and the storage stability are enhanced substantially. Moreover, the transistor is prepared by using a solutionmethod mainly, so that the cost is low and the transistor is easy to promote.
Owner:NANJING UNIV OF POSTS & TELECOMM

Quick self-adaptive layout method for map legend

The invention discloses a quick self-adaptive layout method for a map legend. The method comprises the following steps: in a thematic map manufacturing process which uses an administrative area as a range, dividing a space area between an administrative area geographic range and a map printing geographic range into four positions comprising a top left corner, a top right corner, a bottom left corner and a bottom right corner, and endowing one weighting coefficient to each position; using an evaluation rectangle with assigned initial size and length-width ratio to circularly judge, evaluate and grade the spatial relation of the divided positions; and after the grading of all the divided positions is finished, ordering the scores and taking the position with maximum score as a best position, later converting an evaluation rectangle coordinate system where the position with the maximum score is positioned, and finally putting the map legend in the converted rectangle. The method makes full use of the efficient processing performance of a computer, reduces man-machine interaction during the manufacture of the thematic map of the administrative area, and greatly improves the manufacturing efficiency of the thematic map of the administrative area. The method has large application prospect in the manufacture of the thematic map by using the administrative area as a base map.
Owner:ZHEJIANG UNIV

Separated type solidified bacterium and alga sewage treatment device and method

The invention discloses a separated type solidified bacterium and alga sewage treatment device and method. The separated type solidified bacterium and alga sewage treatment device comprises a tank body with a side wall which is made of a transparent material, and a water suction pump, wherein a central cavity is formed in the tank body; an outer cavity is formed between a side wall of the centralcavity and a side wall of the tank body; the central cavity is internally filled with solidified bacterium balls and the outer cavity is internally filled with solidified alga balls; water pipes at two ends of the water suction pump are connected with the central cavity and the outer cavity respectively; a water inlet is formed in the top of the tank body and a water outlet is formed in the bottomof the tank body. Sewage is filled into the tank body through the water inlet and the water suction pump is opened to fill the sewage into the central cavity filled with the solidified bacterium balls and the outer cavity filled with the solidified alga balls to circulate and flow; after the swage is treated, the sewage is discharged from the water outlet of the tank body. The device is simple tooperate and the sewage treatment method sufficiently expresses respective functions of an alga and bacterium group; the device and method have the advantages of high purification efficiency, low application cost and wide prospect.
Owner:CENT & SOUTHERN CHINA MUNICIPAL ENG DESIGN & RES INST
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