189results about How to "Do no harm" patented technology

The invention discloses an alkali-free and chlorine-free liquid concrete accelerating agent as well as a preparation method and an application thereof. The product disclosed by the invention comprises the following components in parts by weight: 34-41 parts of aluminum salt, 0-5 parts of inorganic acid, 2-10 parts of organic alcohol, 0.2-2 parts of alcohol amine, 0.2-2 parts of coordination agentand 9-59 parts of water. The alkali-free and chlorine-free liquid concrete accelerating agent disclosed by the invention plays an important role in engineering such as sprayed concrete and sprayed mortar of various wells, tunnels, culverts, supports and other underground engineering, concrete emergency repair engineering, anchoring, sealing and plugging engineering and the like, and has wide application prospects.

The invention discloses a liquid formulation containing imidacloprid for trunk injection, which comprises (by weight ratio) the following raw materials, imidacloprid 1.0-8.0%, insecticidal agent 0.01-15.0%, surface active agent 1-10%, and balancing solvent. The agent is applied mainly through dry injection method and can be use for controlling various insects on trees.

The invention discloses a Chinese medicinal health-care spirit prepared by soaking Chinese medicinal herbs into white spirit. The Chinese medicinal herbs comprise astragalus root, ginseng, American ginseng, prepared rehmannia root, angelica, Sichuan lovage rhizome, wild jujube seeds, fructus cnidii, epimedium, morinda officinalis, cistanche salsa, salvia miltiorrhiza, uncaria, tall gastrodia tuber, apocynum venetum, cassia seeds, kudzuvine root, Chinese wolfberry, haw, licorice, yam, mulberry, chrysanthemum, polygonatum kingianum, longan pulp, angelica dahurica, polygonatum odoratum and the like. The Chinese medicinal health-care spirit is safe and green health-care spirit, has an obvious effect of reducing blood sugar, blood pressure and blood fat, avoids relapse after healing, has an obvious prevention and treatment effect on three-high symptoms such as headache, fullness in head, dizziness, palpitation and diabetes as well as hand and foot pains, weakness, numbness and the like, and can be used for effectively reinforcing the sexuality; and by feeling the mouthfeel of the Chinese medicinal health-care spirit, a patient can monitor self and control own disease, and the best health state of the patient can be kept, so that the disease is extremely convenient to master.

The invention discloses a dynamic display method and system for heart cavity. The method comprises the following steps: acquiring a plurality of groups of cardiac medical images at equal intervals of a complete heartbeat period which are continuous ones in terms of the time sequence; segmenting the endocardium and the epicardium of the heart cavity in each group of the cardiac medical images to obtain the endocardial contour and the epicardial contour of the heart cavity in each group of the cardiac medical images; according to the endocardial contour and the epicardial contour, constructing three-dimensional models for the heart cavity; adding a plurality of three-dimensional transition models of the heart cavity into the three-dimensional models; and displaying the plurality of three-dimensional models and the plurality of three-dimensional transition models dynamically in the time sequence. The method and system disclosed by the invention realize the non-intruding type four-dimensional dynamic display of a heart cavity. Capable of being operated conveniently, the method and system do not cause any damage to a human body; and in the modeling process, the used data information can be used to calculate the cardiac muscle momentum, endometrial momentum and heart cavity volume and other parameters so as to facilitate the development of various expansion functions.

An antibacterial hydrophilic polyurethane foam medical dressing is prepared by mixing a component A and a component B according to a mass ratio of 0.5-1 to 3-1 and foaming, wherein the component A isan isocyanate terminated hydrophilic prepolymer; the component B is a functional foaming mixture formed by mixing 1-10% of a surfactant, 0.9-10% of a foam stabilizer, 0.1-10% of a cationic polymeric antibacterial agent and 70-98% of water. The antibacterial hydrophilic polyurethane foam medical dressing has the characteristics of simple preparation technology and strong operability. The prepared antibacterial hydrophilic polyurethane foam medical dressing has a good antibacterial property, maintains the antibacterial property thereof for a long time, has a good hydrophilic liquid-absorbing property and is a novel functional medical wound dressing.

The invention relates to a double-layer composite plastic foaming sheet with a soft surface and a formation method thereof and pertains to the field of building materials. The foaming sheet comprises two layers of a soft surface layer and a hard bottom layer, which are both foaming bodies and have the thickness of 2 to 10 mm. The formation method comprises the steps of proportioning, material blending, extrusion by extruders, die formation, pre-cooling, etc., in sequence, and is characterized in that materials of the soft surface layer and the hard bottom layer are first respectively blended to be added into two extruders which are connected with each other by an intermediate connector and a composite die, the step of formation is followed by pre-cooling; wherein, the composite die adopts double runners, a runner of the hard bottom layer is parallel to a composite area at a die orifice while a runner of the soft surface layer forms an angle of 30 to 45 degrees with the runner of the hard bottom layer near the composite area; in addition, the length of a composite straight section of the composite area is 20 to 30 mm. The double-layer composite plastic foaming sheet provided by the invention can ensure more safety with the bottom layer serving for support; the two layers are combined through bonding force and compatibility between molecules of the materials of the two layers and the composite plastic foaming sheet can be formed by a one-off extrusion.

The invention relates to a high-strength temporary blocking agent for oil and gas wells and a preparation method and application thereof. The temporary blocking agent for oil and gas wells is prepared from the following ingredients through crosslinking reaction: thickening agent, dispersing agent, adhesive and a temperature resistant material with mass ratio of (2.5-3):(1.3-2):(2.8-3):(1.7-2), preferentially, 3:2:3:2. The temporary blocking agent for oil and gas wells has the advantages of high strength, filter cake formation, good solubility and controllable time, flowback is facilitated and the method is simple to operate.

The invention relates to a method for producing a urea formaldehyde controlled-release compound fertilizer, belongs to the technical field of fertilizer manufacture, and aims to produce the finished fertilizer product by adding a certain amount of potassic fertilizer, phosphatic fertilizer and catalyst in the process of producing a urea formaldehyde controlled-release fertilizer, further reacting in the existence of strong acid to synthesize urea formaldehyde compound fertilizer slurry, spraying granulation, screening and cooling. The dosage of the catalyst is 0.2-2 percent of the total mass of urea; copper sulfate pentahydrate, zinc sulfate heptahydrate, borax and other raw materials are added in the reacting process, and the requirement of crops on medium trace nutritional elements can be met. The method has the advantages of simple operation process, flexible production, low cost and the like, and the product is comprehensive in nutrition and has the characteristics of uniform and full particles, high strength and nutrition, adjustable controlled-release property and the like. Therefore, the method has great advantages on production process and economy.

The invention relates to a formula of an acupuncture tool for a thunder fire needle and a manufacturing method. The acupuncture tool is formed by mixing clove, cinnamon, asarum, angelica dahurica and moxa in a ratio, stirring uniformly, putting the mixture into a combustible wrapping material, coiling, winding the exterior of the formed acupuncture tool by using a winding belt and sealing two ends. The formula is an externally-applied medicament and has no toxic or side effect, the raw material source is rich, the manufacturing method is simple and feasible, and the cost is low; and the formula matched with an acupuncture pad and external cream has remarkable curative effect on scapulohumeral periarthritis, arthritis, cervical spondylosis, hyperosteogeny, intervertebral disc protrusion, ankylosing spondylitis, small-area leucoderma, asthma, chronic bronchitis, stomachache and diarrhea.

The invention discloses a method for preparing a viscosity depressant for a drilling fluid, comprising the following steps of: mixing lignosulphonate and water in the mass ratio of 1: (1.5-4) to obtain a solution A and adjusting the pH value of the solution A to be 6-7; (2) adding ferrous sulphate into the mixture obtained in the step (1) and reacting for 1-4 hours at 60-80 DEG C; (3) heating themixture obtained in the step (2) to 60-90 DEG C and then adding an organic monomer AMPS and an evocating agent and reacting for 1-4 hours; and (4) drying and crushing the mixture obtained in the step(3) at 80-100 DEG C to obtain the viscosity depressant for the drilling fluid, wherein the mass ratio of the lignosulphonate to the ferrous sulphate to the organic monomer AMPS to the evocating agentis 1:(0.3-0.5):(0.1-0.15):(0.01-0.02). The prepared viscosity depressant is suitable for drilling fluids under the conditions of extraordinarily high temperature and antisaturation saline water.

The invention discloses a synthetic brake shoe for an urban railway vehicle and a preparation method thereof. The synthetic brake shoe for an urban railway vehicle is prepared from acicular wollastonite used as a reinforcing material, polybismaleimide resin used as a base material, and a filling and frictional property regulator by a hot pressing technique. The synthetic brake shoe for an urban railway vehicle is prepared from 8-16% of polybismaleimide resin, 6-14% of nitrile-butadiene rubber, 12-24% of graphite, 4-16% of iron powder, 4-12% of wollastonite, 6-14% of friction powder, 21-39% ofbarite and 0-6% of coupling agent. The synthetic brake shoe for an urban railway vehicle has the advantages of stable friction factor, wear resistance, low abrasion, no cracking or metal inlay, favorable weather resistance and low noise, does not damage wheels, does not pollute the city, and can satisfy the operational requirements for urban railway trains.

The invention relates to a heat-insulating layer of a rare earth complex wall body and the manufacturing method of heat-insulating layer material, which belongs to the field of architectural materials. The invention is characterized in that the process for preparation comprises mixing rare earth rubber powder by weight ratio that rubber powder: water = 1:1 to 1.5, adding polyphenyl particles into material which is mixed, the proportion is that rubber powder: EPS particles = 1 kg: 8 L, continuously mixing for 5-10 min to make rare earth rubber powder EPS particle heat-insulating material, mixing rare earth trowel finish sand with water according to the proportion that rare earth trowel finish sand: water = 1: 1 into slurry, making rare earth trowel finish sand slurry, and brushing rare earth rubber powder EPS particle heat-insulating material, trowel finish sand slurry, standard net cloth, rare earth trowel finish sand slurry, flexible putty and face coat on the base layer of the wall body in turn. The invention has good heat-insulating property, strong binding power, high compression strength, good water resistance and flame proof, which is antiseptic, noncorrosive, nontoxic, tasteless and pollution-free, has the function of absorbing ultraviolet ray and infrared ray, and has quick coagulate speed, rapid increase of the strength of materials, and the construction procedure is rapid, timesaving and laborsaving.

The invention discloses an environment-friendly crosslinking and gelling retarding profile control agent and a preparation method thereof and belongs to the field of enhanced oil recovery technologies for oilfields. The profile control agent comprises a primary agent, i.e. hydrophobic association, a crosslinking agent, i.e. aluminum citrate, an antioxidant, i.e. sodium sulfite, and a retarding agent, i.e. sodium malate, and contains all the ingredients in percentage by weight: 0.1-0.4% of hydrophobic association, 0.01-0.02% of aluminum citrate, 0.015-0.025% of sodium sulfite, 0.005-0.020% of sodium malate and the balance of water. The profile control agent disclosed by the invention has the characteristics that the profile control agent is environment-friendly and is free of damage / injury to environments / human bodies; the crosslinking is retarded, and the gelling time is prolonged, thereby being beneficial to high-dose injection and deep profile control; the plugging rate is high; and the profile control agent has certain temperature-resistant and salt-tolerant performance and scouring resistance. The profile control agent can be used for adjusting a water absorption profile of a water-flood well and improving the water-flood development effect of oilfields.

The invention discloses a method for preparing room-temperature fast-curing addition organic silicon rubber. The method is characterized by comprising the following steps of: firstly, burdening the following ingredients in portions by weight: 15-40 portions of ethylene oil, 2-30 portions of white carbon black, 1-20 portions of silicon gel, 0.1-5 portions of hydroxy silicone oil, 15-60 portions of methyl vinyl silicone rubber and 10-40 portions of liquid paraffin; then adding the ingredients to a reactor provided with a stainless steel stirring paddle, a motor and a heating system, uniformly mixing at the normal temperature, heating up and banburying for 1-3 hours; evacuating for 0.5-1.5 hours, discharging and filtering; and dividing a base rubber obtained after the filtering into two portions, respectively adding a platinum catalyst and hydrogen-containing silicone oil, and uniformly mixing to realize the fast curing. The invention has the advantages of simple process, room-temperature fast curing and the like.

The invention relates to a bacillus subtilis for preventing and controlling Chinese herbal medicine soil-borne diseases and a preparation method of a bactericide thereof, in particular to a bacillus subtilis and a preparation method of the bactericide thereof. The bacillus subtilis X1 for controlling the Chinese herbal medicine soil-borne diseases is Bacillus with a preservation number of CGMCC No.4037 and a preservation date of 26th, July 2010. The bactericide is prepared by the following steps: inoculating an activated strain to a NYD fluid nutrient medium for enrichment culture to obtain a sterilized solution with 2-4 billion / millimetre in bacterial count concentration. The bacillus subtilis X1 of the invention is a bio-control bacterial strain which is provided with high control effect on the soil-borne diseases and the bactericide can enjoy a prevention rate of 60-80% on the Chinese herbal medicine soil-borne diseases including ginseng root rot, sclerotiniose, North China fritillary sclerotiniose, Schisandra chinensis root rot, seedling blight and the like. The bactericide bio-control preparation is safe and environment-friendly and does not damage drug resistance of nontarget organisms and inductive pathogenic bacteria.

The invention discloses a method for suppressing the interference of a neutral line of a prestack seismic signal based on curvelet transform. The method comprises the following steps of: firstly, performing sparse representation on the seismic signal through curvelet transform; secondly, analyzing all coefficient matrixes to obtain frequency layers and directional ranges in which linear interference and effective signals are respectively located, wherein three cases are disposed as follows: 1, for the frequency layers and the direction in which only the linear interference is located, the corresponding curvelet coefficient is set to be 0; 2, for the frequency layers and the direction in which the effective signals and linear interference coexist, the threshold of the curvelet coefficient is suppressed; and 3, for the frequency layers and the direction in which the linear interference is not located, the coefficient keeps unchanged; and finally, performing curvelet transform to obtain a suppressed prestack seismic signal. By the method, the linear interference can be effectively suppressed, and the damage to the effective signals can be reduced to the greatest extent. Moreover, the method has the advantages of simplicity and rapidness.

The invention relates to an implantable miniature LED neurological probe. The probe comprises a probe body, a probe head is arranged at the front end of the probe body, and the rear end of the probe body is provided with a connection end. The probe body comprises a miniature LED array, a driving circuit and probe pins. The miniature LED array comprises x*y LED elements. Each LED element corresponds to one driving unit, and the x*y driving units form the driving circuit. The LED elements are electrically connected with the driving units and located at the probe head at the front end of the probe body. Electrodes of the driving units are connected with the probe pins, each driving unit corresponds to one probe pin, and the x*y probe pins are distributed side by side and located at the connection end of the rear end of the probe body. Ultra-high resolution of the neurological probe and multi-area multi-angle stimulation and monitoring of brain nerve cells can be achieved. Interconnection of the miniature LED array and Parylene C flexible polymer can be achieved through the electric interconnection method, affinity of the probe to human bodies is enhanced, and harm caused when rigid objects exert too much pressure on brain tissue is avoided.

The invention relates to a snow-melting agent, in particular to an environment-friendly snow-melting agent and a preparation method thereof. The environment-friendly snow-melting agent comprises, by weight, 10-60 parts of water, 1-5 parts of ethyl alcohol, 0.3-0.5 part of saccharose, 0.1-1.0 part of isosorbide, 0.1-10 parts of ethanediol, 0.5-50 parts of glycerine, 0.1-1 part of acesulfame, 0.5-5 parts of sodium tripolyphosphate, 0.1-1 part of aspartame, 0.5-1 part of sodium hexametaphosphate, 0.1-30 parts of methyl alcohol and 0.5-1 part of threitol. The snow-melting agent prepared through the method is very high in snow melting efficiency, convenient to transport, safe to use and store, convenient to spray, low in use labor intensity, small in labor cost, small in dosage, high in snow melting speed and free of residues, does not pollute water resources, does not corrode buildings or pavements, does not do harm to plants or aquatic animals, does not destroy the pH value of soil and does not cause salinization of the soil.

Disclosed is a pesticide having insecticidal activity, its preparation. and compounds containing the active constituent with general formula disclosed in t he specification, wherein R1 is trifluoromethyl or hydrogen substituent group, R2 is trifluoromethyl, trifluoro methoxyl or hydrogen substituent group. The preparation process comprises the synthesis of intermediate compound 3-(5-chlorin-2-carboxyl phenyl) propionic acid, synthesis of 5-chlorin-1-carbonyl-1,3-dihydrogen-2-indenyl methyl formate, synthesis of 5-chlorin-1-carbonyl-1-carbonyl-1,3-dihydrogen-2-indenyl methyl formate.

Disclosed is a method for clearing pollutant particles on surfaces of a wafer in the CMP technique, the steps of the method comprise leading polishing solution in a chemical mechanical polishing device to perform chemical mechanical polishing on the wafer, stopping leading in the polishing solution, putting acidulous or alkalescent organic substances of which acidity or alkaline is identical to the polishing solution in the chemical mechanical polishing device, and then cleaning the wafer. The method can efficiently remove large-size pollutant particles on the surfaces of the wafer which can not be cleaned after mechanically polishing the wafer in the prior art.

The invention discloses a combustion and explosion suppression system with automatic water curtain, comprising a sensor, a control unit, a water supplying device, a water curtain device and a fast triggering device, the sensor is electrically connected with the control unit, a connecting channel is arranged on the fast triggering device, two ends of the connecting channel are respectively communicated with the water supplying device and the water curtain device; a movable opening device is arranged on the connecting channel and is electrically connected with the control device; the water curtain device comprises at least one water curtain ring, a plurality of injection heads are uniformly arranged on the water curtain ring, and an injection water curtain is formed when in water-spraying, and a plurality of water curtain rings form one water curtain band when in water-spraying, so as to realize to suppress gas or gas dust explosion and spreading by adopting water mist in a coal mine, the reaction speed is rapid, the structure is compact and the manufacturing cost is low, thereby having good combustion an explosion suppression effect, being widely applied to industries such as coal mines, petroleum and chemical industry and powerfully promoting the development of explosion insulation (suppression) in our country.

The present invention relates to a tube ejector on spinning frame with integral doffing device. It mainly includes the following several portions: mobile supporting block, left and right two supporting arms, left and right two supporting legs, tetragonal direction-regulating device, spring sheet and clamp spring. Said invention also provides its working principle and concrete operation method.

The invention discloses a wearable lower limb rehabilitation exoskeleton robot. The robot comprises a waist assembly, two hip joint assemblies, two knee joint assemblies, two ankle joint assemblies, two thigh bandage assemblies and two shank bandage assemblies. According to the robot, lower limbs are divided into hip joints and knee joints for segmented or overall rehabilitation training, and waist, thigh and shank length adjusting and locking mechanisms are arranged, so that the adjustment is flexible, the adaptability is high, and therefore the robot is suitable for 95% of people; the hip joints and the shanks are respectively provided with flat plate type viscoelastic damper self-adjusting mechanisms and cylindrical viscoelastic damper self-adjusting mechanisms, and therefore more patients can have good wearing comfort and rehabilitation training effects; hip joint motor gearbox assemblies and knee joint motor gearbox assemblies are respectively arranged on the rear portion of the waist, so that the motion inertia can be reduced, and the motion precision can be improved; and a patient has high flexibility and comfort in rehabilitation training through rope driving assemblies and rope adjusting and stabilizing mechanisms.

The invention discloses a spatial dilator for endoscopic thyroidectomy. The spatial dilator comprises a sleeve, a push rod capable of telescoping along the axial direction is arranged in the sleeve, a button matched with the push rod and capable of pushing the push rod to telescope is arranged outside the sleeve, the left side of an extending end of the push rod is movably connected with one end of a left connecting rod blade, and the right side of the same is movably connected with a right connecting rod blade. The other ends of the left connecting rod blade and the right connecting rod blade are respectively connected with a left cutter and a right cutter which are movably connected with ends of the sleeve. The other end of the push rod is connected with a handle. By the spatial dilator for endoscopic thyroidectomy, hurt to breast skin of patients is reduced, operation is simplified, and operation time can be effectively shortened.

The invention provides a cultivating method of a parent generation and commodity generation dual auto-sexing male and female meat chicken. According to the cultivating method, three pairs of sex-linkage traits of the chicken dark color shank and the chicken light color shank, the transverse spot feather and the non-transverse spot feather, the quick feather and the slow feather are utilized to design the parent genotype and the hybridization process, in the cultivating process, whether the chicken is male or female can be directly authenticated according to the phenotype of the commodity generation and the parent generation of the chicken, the authentication accuracy of the parent generation can reach up to 99.8%, and the authentication accuracy of the commodity generation can reach up to99.5%. The cultivating method is simple and easy to operate, training special authentication personnel is not needed, a large amount of cost is saved, the authentication speed and the accuracy are high, the chickens are not injured, and the survival rate of the chickens is increased.

The invention provides a biological activator for a compound production promoter used in oil production. Based on the total weight of the biological activator, the biological activator comprises 15 to 30 percent of rhamnolipid, 10 to 30 percent of trehalose glycolipid, 4 to 25 percent of alkyl glycoside, and the balance of water. The biological activator of the invention has a certain water and crude oil solubility and good wettability on the surfaces of oil-containing rocks, can remove an oil film and disperse the crude oil, and possesses a strong crude oil emulsifying capability, and by a cooperation with microorganisms, the biological activator can achieve high applicability, long period of validity and rapid action effect.

The invention relates to the field of rapid food detection and particularly relates to a method for rapidly detecting the content of amino acid nitrogen and total acids by using a mid-infrared spectrum. The method comprises the following steps: (1) selecting multiple parts of soy sauce with different contents of amino acid nitrogen and total acids; (2) determining the content of the amino acid nitrogen in each soy sauce sample; (3) determining the content of the total acids in each soy sauce sample; (4) performing spectral collection by using a mid-infrared spectrometer; (5) establishing a quantitative determination model for the amino acid nitrogen and total acids, wherein bands selected by the quantitative determination model are all in a range from 1697.05cm<-1> to 1369.21cm<-1>; (6) performing spectral collection on to-be-detected soy sauce samples by using the mid-infrared spectrometer, and comparing the spectrum of the soy sauce sample with the quantitative determination model, so as to obtain the content of the amino acid nitrogen and total acids. According to the method, only the mid-infrared spectrum in the sample needs to be collected once, and when the spectrum is inputinto the model, the content of the amino acid nitrogen and total acids can be rapidly and simultaneously detected.

The invention discloses a multifunctional reaction kettle for chemical production. The multifunctional reaction kettle comprises a bottom box, wherein one side of the bottom of the inner wall of the bottom box is fixedly connected with a first motor; an output shaft of the first motor is fixedly connected with a stirring device through a speed reducer; the top of the inner wall of the bottom box is fixedly connected with a second motor; an output shaft end of the second motor is fixedly connected with a gear; the surface of the gear is meshed with a slag removal device; one side of the top ofthe kettle body is communicated with a feed pipe; the top of the kettle body is fixedly connected with a gas treatment box through a support frame; one side of the inner wall of the kettle body is fixedly connected with a liquid level sensor; the bottom of the inner wall of the kettle body is fixedly connected with a temperature sensor; a heating pipe is fixedly connected in the wall body of the kettle body. The invention relates to the field of chemical technology. The multifunctional reaction kettle for chemical production solves the problems of waste gas treatment, is harmless to environment and humankind, has high automation degree and ensures stable product quality.

The invention relates to a method for classifying males and females of a fish, in particular to a method for examining early sexual glands of sturgeons by using physical functions of ultrasonic waves,and identifying male and female sturgeons according to an echogram generated in the process of examining the sturgeons by the ultrasonic waves. The method not only causes no injuries to the fishes but also can observe dynamic pictures, has the advantages of reasonable process means, precise processes and high diagnostic accuracy, and is a safe and reliable method for identifying the male and thefemale sturgeons by the ultrasonic waves.

The invention provides a bullet for shooting liquid ammunition and a device for shooting liquid ammunition. The bullet for shooting the liquid ammunition comprises a shell, a front end closed piece, a terminal closing piece and liquid ammunition, wherein the end of the shell is provided with an ignition device and propellant powder, the front end of the shell is opened, the front end closing piece is arranged at the opening, the liquid ammunition device is arranged between the propellant powder and the front end closing piece, and the terminal closing piece is arranged between the liquid ammunition and the propellant powder. The bullet and the device shoot liquid ammunition, are applicable to the short-distance shooting, and can cause large impact force on the target so as to restrict the movement of the target. Since the destruction of the liquid ammunition is weak, non-fatal attack is led to the target. At the same time, even being rebounded onto the human body, the liquid ammunition is free from injuring the human body, so the liquid ammunition is difficult to injure people surrounding the target by mistake.