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135results about How to "Operating economy" patented technology

Preparation method of titanium and titanium alloy surface black protective film for surgical implantation

The invention discloses a preparation method of a titanium and titanium alloy surface black protective film for surgical implantation, comprising the following steps: step 1: carrying out micro-arc oxidation coloring processing on titanium and titanium alloy surface to be processed, in the process, firstly, preparing a micro-arc oxidation electrolysing solution, and then carrying out the micro-arcoxidation coloring processing; and step 2: carrying out subsequent processing on the micro-arc oxidation film, wherein the subsequent processing comprises the following steps: firstly, preparing a mixed solution for hydro-thermal processing, completely dipping the titanium and titanium alloy after micro-arc oxidation shading processing in the mixed solution, carrying out the hydro-thermal processing on the surface by adopting a hydro-thermal method, drying the titanium and titanium alloy under the condition of low temperature when the hydro-thermal processing is completed, and generating a layer of pure black micro-arc oxidation film with uniform and plump surface on the titanium and titanium alloy surface. The invention has simple and convenient operation, economy, high production efficiency, and high bonding strength between a generated ceramic film, i.e. the micro-arc oxidation film and a substrate, and the invention can effectively overcome various defects and deficiencies which exist in the prior coating processing techniques.
Owner:NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH

Ultralong concrete slip form body of concrete rockfill dam and construction method of slip form body

The invention discloses an ultralong concrete slip form body of a concrete rockfill dam and a construction method of the slip form body. The slip form body comprises a fixed panel, a mobile panel and a positioning supporting plate, wherein scales are formed on the fixed panel; a slip form truss is arranged on the top surface of the slip form body; a slip form body panel is arranged on the bottom surface of the slip form body; a traveling bracket is arranged on the side surface of the positioning supporting plate. The construction method comprises the following steps: (1) performing construction preparation; (2) clearing a base layer, and performing acceptance check on the base layer; (3) performing surveying and setting out; (4) spray-coating emulsified asphalt; (5) binding steel bars, and keeping a side form be upright; (6) mounting a traction system; (7) mounting the slip form body in place; (8) erecting a sliding chute; (9) putting concrete into a bin for construction; (10) moving a slip form; (11) detaching the slip form; (12) maintaining the concrete. According to the method disclosed by the invention, the construction steps are simplified, the construction period is shortened, and the slip form construction on ultralong panel concrete is realized; therefore the construction steps are reduced, the construction progress is accelerated, and the economical and social benefits are obvious.
Owner:ZHEJIANG UNIV OF WATER RESOURCES & ELECTRIC POWER

Building roof parapet wall flashing construction process

ActiveCN106906962ALow costEconomical cost, convenient operation and economicalSnow trapsBrickReinforced concrete
The invention relates to a flashing structure construction process, in particular to a building roof parapet wall flashing construction process. The building roof parapet wall flashing construction process comprises the following steps that step one, a flashing wall body of a reinforced concrete structure is poured on a building roof; step two, a waterproof roll is paved and pasted on the inner facades of the roof and the flashing wall body to form a waterproof layer, and the upper end of the waterproof roll is subjected to head retraction treatment; step three, a protective brick wall is laid on the outer facade of the waterproof layer through solid bricks, the inner facade of the protective brick wall is tightly attached to the waterproof roll, and the waterproof roll is tightly pressed on the flashing wall body, wherein the protective brick wall is no larger than the flashing wall body; and step four, a parapet wall is laid on the flashing wall body through solid bricks on the basis of the top of the flashing wall body, wherein the thickness of the wall body of the parapet wall is equal to the distance between the outer facade of the flashing wall body and the outer facade of the protective brick wall. A flashing structure built through the building roof parapet wall flashing construction process has the advantages of being resistant to cracking and falling-off and long in guarantee period and is convenient to construct and low in cost, and materials are convenient to obtain.
Owner:CHINA METALLURGICAL CONSTR ENG GRP

A three-dimensional shell-imitated material and a preparing method thereof

A preparing method of a three-dimensional shell-imitated material is provided. The method includes preparing a nanometer aromatic polyamide fiber dissolved solution from aromatic polyamide fibers in asolvent by utilizing stirring and stripping; mixing a mica dispersion, a surface modifier and a dispersing agent to obtain a mica sheet suspension modified with the surface modifier; mixing the micasheet suspension modified with the surface modifier with the nanometer aromatic polyamide fiber dissolved solution to obtain a mica-nanometer aromatic polyamide fiber dispersion; preparing a compositefilm by spraying the mica-nanometer aromatic polyamide fiber dispersion through a spray-assembling method; spraying the composite film with zinc oxide nanoparticles; infiltrating the composite film in epoxy resin; and performing lamination and hot press processing to obtain the three-dimensional shell-imitated material. The three-dimensional shell-imitated material has bending stress, toughness and Young modulus which are far higher than those of pure nanometer aromatic polyamide fiber block materials, and has specific stress and specific toughness which are far higher than those of shell-imitated materials of the same type. In addition, stability of properties in acidic, alkaline, high-temperature, low-temperature, radiation environments and other harsh environments is achieved.
Owner:UNIV OF SCI & TECH OF CHINA

Preparation method of axially chiral biaryl phosphine oxide and axially chiral biaryl phosphine

The invention discloses a preparation method of axially chiral biaryl phosphine oxide and axially chiral biaryl phosphine and particularly relates to a preparation method of axially chiral biaryl phosphine oxide with the structure shown as formula (I). The preparation method comprises the following steps: in an environment of an alkali and a solvent, directly preparing axially chiral biaryl phosphine oxide in one step through a catalytic asymmetric Suzuki reaction by taking 2-bi(aryl) phosphine oxide-1-aryl halide or sulphonate thereof and 2-substituted arylboronic acid or corresponding borate or borate as a reaction primer and metal palladium as a catalyst; then, recrystallizing the solvent to obtain the optically pure axially chiral biaryl phosphine oxide; and further obtaining corresponding axially chiral biaryl phosphine by adopting a silane reduction method or other common methods. The preparation method is simple to operate, economic and high in synthetic efficiency without common splitting process, so that the defect of existing preparation method which is more in step and raw material-wasting can be avoided. The preparation method provides a more convenient path for synthesizing axially chiral biaryl phosphine oxide and corresponding axially chiral biaryl phosphine.
Owner:SUN YAT SEN UNIV

Ultrasonic guided-wave defect locating method based on Liapunov index

The invention discloses an ultrasonic guided-wave defect locating method based on Liapunov index, and the method is as follows: constructing a duffing oscillator signal detection system on the basis of duffing equation, calculating the Liapunov index variable with driving force F change; exciting ultrasonic guided wave signals on a to-be-tested material through an emitter, traversing all positions of the to-be-tested material with the ultrasonic guided wave signals, and obtaining an actually measured signal by a receiver; constructing a window function, intercepting, from the actually measured signal, interception signals with length corresponding to different window length, inputting each interception signal into theinterception signal, calculating the Liapunov index with driving force F change after the interception signals are inputted; determining the interception signal corresponding to the window length of greatest driving force F change amount, moving the window function to scan the interception signal for defect locating of the to-be-tested material. The ultrasonic guided-wave defect locating method can be used for ultrasonic guided wave signal identification, locating of defects in different degrees of injury, and improvement of the sensitivity of ultrasonic guided wave identification of small defects.
Owner:TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY +1

Method for improving quality of germinated brown rice by means of plasma treatment

The invention relates to the technical field of food processing, in particular to a method for improving quality of germinated brown rice by means of plasma treatment. The method comprises the following steps: carrying out pretreatment: carrying out impurity removing and hulling on rice, and then picking out the brown rice which is full in grain and is not moldy and rotten; carrying out plasma treatment: putting the preferred brown rice into a plasma equipment reactor, adjusting equipment parameters and carrying out electro discharge treatment on the brown rice under the condition that the airis used as a discharge gas source; putting the brown rice, subjected to the plasma discharge treatment, into deionized water at 4 DEG C, soaking for 24h, and then placing in a constant temperature and constant humidity incubator for carrying out germination culture; culturing for 12-48h to obtain the germinated brown rice; washing the obtained germinated brown rice and then drying under the hot air condition so as to obtain the germinated brown rice with improved quality. The prepared germinated brown rice not only has the characteristics of being high in water absorption rate and germinationrate, good in cooking property, light in bran wax taste, good in palatability, and the like; furthermore, the germinated brown rice is rich in functional factors such as gamma-aminobutyric acid, polyphenol, oryzanol and ferulic acid.
Owner:ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY

23-percent tebuconazole.thiram suspension seed coating agent

The invention discloses a wheat seed coating agent, which comprises an active component bactericide, a plant growth regulator, an inactive component coating agent and an aid, and concretely comprises the following components in percentage by weight: 0.5 to 2.0 percent of tebuconazole, 21 to 22.5 percent of thiram1.5 to 2.2 percent of concentrated emulsion No.500, 2.4 to 3.0 percent of concentrated emulsion No.600, 0.5 to 1.7 percent of di-secondary sodium sulfocyanate, 0.05 to 0.15 percent of xanthan gum, 0.3 to 4.0 percent of dimethicone, 4.5 to 5.5 percent of ethylene glycol, 0.5 to 2.0 percent of warning color and the balance of water. The total content of tebuconazole and thiram is 23 percent. The seed coating agent has the characteristics of high suspension rate, high coating property, uniform coating, low stripping rate, low toxicity, convenient use and the like. The seed coating agent to seed ratio is high, so the seed coating agent is economic to use, and the cost of the seed coating agent is lower than those of products of the same kind. The germination rate of the wheat seeds can be improved by 10 percent, the incidence of rust disease and dust-brand in wheat fields is reduced by about 30 percent, and the yield of the wheat is increased by over 10 percent.
Owner:XINJIANG JINHUA PESTICIDE

Method combining oxidizing composite reagent and activated carbon to remove arsenic in water

The invention provides a method combining an oxidizing composite reagent and activated carbon to remove arsenic in water. The oxidizing composite reagent is added into the water and stirred, and then the activated carbon is utilized to adsorb the arsenic. The oxidizing composite reagent is formed by compositing potassium ferrate, chlorine dioxide, sodium peroxide, potassium persulfate, potassium monopersulfate, ferrous sulfate, ferric sulfate and hydroxylamine hydrochloride, or is formed by compositing potassium peroxide, sodium peroxide, sodium monopersulfate, iron chloride and hydroxylaminehydrochloride, or is formed by compositing calcium peroxide, sodium hypochlorite, calcium monopersulfate, calcium persulfate, cerium chloride, ferric chloride, cerous sulfate and humus, or is formed by compositing cobalt chloride, ammonium monopersulfate, ammonium persulfate, cerous sulfate, sodium peroxide and hydroxylamine hydrochloride. The method can not only remove the arsenic in drinking water, underground water and surface water rapidly, efficiently, conveniently and safely, but also effectively reduce concentration of the arsenic in sewage containing arsenic and effluent of sewage secondary sedimentation tanks, and simultaneously can have good recovery effect on lakes and inland seawater polluted by the arsenic.
Owner:HARBIN ENG UNIV
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