178results about How to "Wide operating range" patented technology

The present invention provides for a one or more layer graphene optical modulator. In a first exemplary embodiment the optical modulator includes an optical waveguide, a nanoscale oxide spacer adjacent to a working region of the waveguide, and a monolayer graphene sheet adjacent to the spacer. In a second exemplary embodiment, the optical modulator includes at least one pair of active media, where the pair includes an oxide spacer, a first monolayer graphene sheet adjacent to a first side of the spacer, and a second monolayer graphene sheet adjacent to a second side of the spacer, and at least one optical waveguide adjacent to the pair.

A rotary brushless electric motor is formed within a cylindrical rotor housing structure that surrounds an annular stator ring. The stator is formed of a plurality of individual power modules and corresponding core segments, each module including electrical control and drive elements supplied by a power source incorporated within the stator. Such parallel architecture provides relatively independently controlled functionality for each module. Each module and stator core segment can be individually installed and removed without disturbing the other units. Should a particular module or stator core segment fail, it can be easily removed for repair or replacement and reinstallation.

The invention relates to chemical technical field, in particular to a method for using magnesia catalyst to catalyze and oxidize cyclone to synthesize lactone. The invention uses some nanometer sheet magnesia compound as catalyst, uses mixture of cyanobenzene and 1, 4-dioxane at a certain proportion as solvent, at a special reaction temperature, to catalyze and oxidize cyclone to synthesize lactone compound. The invention uses commercial cyclopentanone, cyclohexanone and adamantaneketone as raw materials, at mild condition, to reach the total yield of lactone compound more than 90%. The invention uses hydrogen dioxide water solution as oxidant, to eliminate the environment pollution of traditional oxidation process as peroxyacid, to realize environment-friend catalysis conversion. The invention has low cost, which can be used for industrialized lactone compound production.

The invention provides a method and a system achieving intermediate slab head and tail shear control. The method comprises the following steps: an image acquisition device acquires image sequences of strip steel by adopting a surface formation type camera; a shape analysis device analyzes the image sequences acquired by the image acquisition device, carries out image pretreatment on head and tail images of the strip steel, detects the pretreated images, identifies the types of the strip steel, and calculates strip steel shear line positions; and a shear executive device controls shear positions of the head portion or the tail portion of the strip steel according to the strip steel shear line positions calculated by the shape analysis device. According to the method and the system, an additional device is not needed for controlling snapshot motions, and therefore operation is simplified. Besides, the method and the system can carry out various shear strategies of length fixing, percentage fixing and optimizing, and have the advantages that shear accuracy is high, shear does not slip, and maintenance amount is small.

The invention discloses a method for preparing a hyperbranched polymer by adopting consecutive click chemical reaction, comprising the following steps: (1) adding 1 mole of dithiol compound, 0.5-10 moles of solvent, and 0.9-1.1 moles of base and 0.9-1.1 moles of compound containing alkynyl and halogen into a reactor in sequence in the presence of nitrogen to carry out sulfydryl-halogen reaction for 0.5-5 hours between minus 20 DEG C and 30 DEG C, filtering and removing generated precipitates, and carrying out decompressing evaporation to remove the solvent; (2) dissolving the products of reaction, which are obtained in the step (1), into 0.25-10 moles of solvent in the presence of nitrogen, adding 0.005-0.05 mole of photosensitive free radical initiator or thermosensitive free radical initiator, irradiating with ultraviolet light or heating at 40-90 DEG C to generate free radicals, carrying out sulfydryl-halogen reaction for 0.5-24 hours, precipitating, separating and drying to obtain the hyperbranched polymer. The method ensures that the tedious AB2 monomer synthesis and purification step is omitted, is fast and efficient and is simple in process. The prepared hyperbranched polymer containing a large number of thioether bonds and alkynyls has a wide application prospect in the fields of high-performance materials, additives and the like.

A system and a method implementing such a system. The system includes eyeglasses having hinged stems, a plurality of sensors and an alert alarm. The system further includes a triaxial accelerometer, an IR transmitter, an IR receiver, and a barometric sensor. The sensors are set up in the hinged stems and the rims of the eyeglasses and connected to a processing and calculation unit. The processing and calculation unit includes a microprocessor and a memory. The processing and calculation unit executes a computer program to analyze data issued by the sensors and triggers the alarm based on a result of the analyzed data.

The present disclosure relates to a rotary blood pump system. The rotary blood pump system may further comprise a double pivot contact bearing system with an operating range between about 50 mL / min and about 1500 mL / min. The rotary blood pump system may also comprise an inflow blood conduit, an outflow conduit, a control system, and a power source. The present disclosure further relates to various inflow conduit assemblies comprising a conduit tip comprised of metal or polymer having an undulating opening surface that provides improved blood flow and washing properties while minimizing regions susceptible to stagnation, and optionally a resilient tip protecting cage structure that reduces the risk of conduit tip suction events and suction-related injury of the wall of adjacent blood vessels or other blood containing structures. The present disclosure further relates to various outflow conduit assemblies with a conduit tip comprised of metal or polymer wherein the cross-sectional area of the lumen of the conduit or conduit tip

The invention provides an air conditioner control method, an air conditioner control system, a control device, an air conditioner, computer equipment, a computer readable storage medium and a terminal. The air conditioner control method comprises the steps that wireless connection with at least two indoor units is established; respective identification information of at least two indoor units is obtained and stored; a mode control instruction is received; at least one piece of identification information corresponding to the mode control instruction is recorded; a running instruction of work parameters of the air conditioner is sent to at least one indoor unit corresponding to recorded at least one piece of identification information so that at least one indoor unit can control the air conditioner to execute the corresponding operation according to the running instruction of the work parameters. According to the provided air conditioner control method, accurate regulation and control over at least one indoor unit of the air conditioner is achieved, mistaken regulation and control over the adjacent indoor units during regulation and control over a single indoor unit are avoided, operation steps are simplified, practicability is high, and the using experience of users is improved.

The invention discloses a non-contact gravel aggregate grain size and grain shape detector and a detection method. The detector comprises a feeding system, an image acquisition system, an image processing and analyzing system and a display system, wherein the image acquisition system comprises a light source, a background plate and acquisition equipment; the light source is opposite to the acquisition equipment, an image detection region is formed between the light source and the acquisition equipment, the background plate is positioned in the detection region close to the light source, a discharging (feeding) opening of the feeding system is positioned at the upper part of the detection region and is close to the background plate, the image processing and analyzing system is connected to the display system through signals, and the display system is used for displaying results and outputting statements. The detector adopts image processing and digital imaging techniques. When a material falls freely from the detection region, the grain size gradation, needle and flake content, sphericity, length-diameter ratio, grain count and other indexes of the material are precisely measured in real time, and through multiple groups of tests, the multiple indexes are integrated to evaluate the performance of the sample on the whole, the specification and grade of gravel aggregate can be determined automatically, and a detection report is provided.

The invention discloses modified cinder adsorbent and a preparing method and application. The preparing method includes the steps that 1, ignite cinder is washed, dried and mixed with pyrite cinder, and the mixture is smashed; 2, the mixture obtained in the step 1 is soaked in inorganic acid water solution and is treated in a acidification modification mode; the solution is filtered, filter liquor is recovered, solid is washed with water, dried and calcinated to obtain the modified cinder adsorbent. The ignite cinder and pyrite cinder are used for preparing the modified cinder adsorbent which is uniform in particle size distribution and high in dispersity; the modified cinder adsorbent is high in adsorbability to heavy metal ions in waste liquid, high in adsorption efficiency and capable of being used for treating heavy metal in multiple kinds of industrial waste water and has the advantages of being easy to operate, low in cost and good in effect; the ignite cinder and pyrite cinder are residue waste. The two kinds of raw materials are wide in source, cheap and easy to obtain, are used for preparing the modified cinder adsorbent and have obvious price advantages. The adoption of the ignite cinder and pyrite cinder belongs to recycle of solid waste, and the environment burden is greatly reduced.

The invention provides a chemiluminiscence detection kit for 5 items of hepatitis B and a preparation method thereof and relates to the kit for hepatitis B detection. The kit comprises a coated micropore reaction plate, a biotin marker, an alkaline phosphatase marker, a neutralization reagent, a calibrator, luminescent substrate liquid and a concentrated cleaning liquid. The preparation method comprises the following steps of: respectively preparing the streptavidin pre-coated reaction plate, the calibrator, the biotin marker, the alkaline phosphatase marker, the neutralization reagent, the luminescent substrate liquid and the concentrated cleaning liquid, and assembling for preparing the chemiluminiscence quantitative detection kit for 5 items of the hepatitis B. The prepared chemiluminiscence detection kit for 5 items of the hepatitis B has the advantages of being capable of sensitively detecting 5 items of the hepatitis B, also being capable of carrying out accurate quantitative determination on 5 items of the hepatitis B, being low in cost, simple in operation, accurate in results and environment-friendly without pollution and having long-term interests.

The invention discloses a cement-based shrinkage-free grouting mortar which is characterized by comprising the following components in percentage by weight: 35%-42% of silicate cement, 5%-12% of aluminate cement, 6%-10% of gypsum, 40%-50% of aggregate, 0.8%-1.4% of high-efficiency water reducing agent, 0.05%-0.2% of coagulation-regulating agent, 0.4%-1.0% of defoamer and 1%-3% of bleeding resisting agent. The cement-based shrinkage-free grouting mortar is a gelled material which is prepared from the silicate cement, the aluminate cement and the gypsum and has stable performance, and the flow degree, coagulation time and expansion rate of the grouting mortar can be regulated according to the requirement of a user. After mixed with water, the grouting mortar has a good self-flowing property, no sedimentation and no bleeding; the grouting mortar has the characteristics of plastic micro-expansion property, no gap, high early strength, no contracted later strength, good durability, impermeability, freezing resistance and vibration resistance, low material price and wide raw material sources; and the grouting mortar is flexible to operate and is simple to use.

The invention discloses a laminated laundry detergent tablet and a preparation method thereof. The laminated laundry detergent tablet is prepared from, by weight, 5%-10% of a non-ionic surfactant, 15%-35% of an anionic surfactant, 3%-10% of an auxiliary washing agent, 0.1%-5% of an adhesive, 40%-60% of a disintegrating agent, 0.1%-5% of a laminating agent and 1%-5% of a solvent. The laminated laundry detergent tablet which is made from biodegradable materials is highly concentrated, low in consumption and high in detergence; by combination of an effervescence system and a polymer swelling system, high disintegration speed is realized; due to water-soluble laminates on surfaces of material particles, interaction or dampness of a disintegration agent can be avoided, requirements on a storage environment are lowered, and the shelf life is prolonged. The preparation method is completed under a normal-temperature normal-pressure condition, convenient, quick and simple in operation, free of special equipment, wide in application range and low in cost.

A water polyacrylate emulsion for printing is prepared through proportionally mixing water, emulsifier, trigger, perspex, acrylic acid (methyl) acrylate, and polymerizing at 70-85 deg.C for 5-8 hr. Its advantages are high solid content, small diameter of emulsoid particles, low viscosity, high stability, non-toxic and no environmental pollution.

The invention discloses portable fumigation and internal and external cleaning equipment for the gynecology department. The equipment can be used for cleaning the inside and outside of the vagina at the same time, and also can be used for fumigation for further sterilization and disinfection, a soft cup structure built in a cleaning nozzle is inserted into the vagina by folding and shrinking, thenrebounds and is clamped in the vagina, no hands are needed for holding, a blocking handle on the soft cup prevents the situation the soft cup is placed in a deep place and makes the soft cup convenient to take out, waste liquid is discharged from a waste liquid guide pipe below the soft cup, the dwell time of liquid drugs is prolonged, and overflowing of the waste liquid is prevented; the top ofthe external cleaning nozzle drives the rotating nozzle through a rotating driving impeller, and the cleaning range is more extensive. Moreover, external supports make the equipment more convenient tomove and store, the equipment is suitable for use in hospital and home, the cleaning and sterilization effects are obvious, safety and reliability are high, no liquid leakage occur, and operation andstorage are convenient.

The invention relates to a coating having both luminous and fluorescent properties, and a preparation method thereof, and belongs to the technical field of luminous coatings. The coating comprises 1-3% of a carbon dot dioxide fluorescent material, 1-4.5% of an organic long-afterglow luminous material, 27-45% of a silicone-modified waterborne polyurethane emulsion, 18-36% of a pigment, 9-18% of a filler, 0.2-0.9% of a wetting dispersant, 0.2-0.9% of a defoaming agent, 0.1-0.45% of a leveling agent, 0.45-1.8% of a thickener, 1.0-3.0% of a film forming aid, and the balance of water. The components constituting the coating are reasonably selected and the use amounts of all the components are controlled to ensure that the finally prepared coating has an obvious luminous phenomenon and a good adhesion. The coating has both fluorescent and luminous properties, is non-polluting and nontoxic, and is environmentally friendly, so the coating has broad application prospects in the fields of anti-counterfeiting, decoration and public transportation. In addition, the preparation method has the advantages of simple process, easiness in operation, low raw material cost, and suitableness for enlarged production.

The invention introduces an effective inductive cultivation method for an autotetraploid of paulownia catalpifolia by using leaves of a diplontic paulownia catalpifolia tissue culture seedling. The method comprises: pre-cultivating the leaves of paulownia catalpifolia for 6 days, wherein the concentration of added colchicine is 30 mg / L, the concentration of dimethyl sulfoxide is 2%, and the soaking time is 48 hours; performing shake cultivation, wherein the induction rate of the tetraploid paulownia catalpifolia reaches 14.5%; detecting that the chromosome number of root tip cells of variant plants of paulownia catalpifolia is 80 by virtue of a chromosome counting method, wherein the chromosome number is two times of that of the corresponding diplontic paulownia catalpifolia; and detecting that the unicellular DNA content of the tetraploid leaves of the paulownia catalpifolia are two times of those of the corresponding diplontic paulownia catalpifolia by using a flow cytometer, showing that a tetraploid paulownia catalpifolia plant is obtained. The cultivation method for inducing autotetraploid of paulownia catalpifolia by colchicine disclosed by the invention has the advantages of being wide in material drawing, simple and convenient to operate, low in cost, high in induction rate and the like, and is of certain guiding significance for woody plants, the tetraploid of which is not easily obtained.

The invention provides a preparation method of a rare-earth oxide material containing tourmaline. According to the method, tourmaline micro powder is added during a hydrothermal preparation process, and a micro electric field generated by spontaneous polarization of the tourmaline micro powder is utilized to control the increase of particle sizes of rare-earth oxide particles in hydrothermal reaction, so that more reaction active sites are exposed while the specific surface area of the rare-earth oxide material is increased, the catalytic oxidation reactivity of high perovskite type rare-earth oxides is promoted, and defects in the preparation process and application of the conventional perovskite type rare-earth oxides are overcome. The method can be widely used for pretreatment of catalytic materials, brings favorable economic benefits and social benefits to China in the fields of catalytic oxidation, industrial organic waste gas treatment, automobile emission purification and the like, and is of important positive significance in energy conservation, emission reduction and reasonable use of energy sources.

The invention provides a portable pharmaceutical dispensing device. The device comprises a box body, the top of the box body is open, one side of the top surface of the box body is hinged to one sideof the bottom surface of a box cover, a clamp buckle seat is fixedly installed on the right side of the upper part of the box body, a clamp buckle member is fixedly installed on the right side of thebox cover, the right side of the box cover is matched with the right side of the box body through a clamp buckle, a handle is fixedly installed at the top surface of the box cover, a medicine preparing cylinder is arranged in the box body, a first bevel gear is fixedly installed on the outer circumference of the medicine preparing cylinder, a motor is movably installed on the left side of the inner wall of the box body, a second bevel gear is fixedly installed on the right end of the output shaft of the motor, and the first bevel gear engages with the second bevel gear. When a research and development experiment of a novel medicine is performed, the device provided by the invention can quickly complete medicine preparation, tedious steps when medical workers prepare the medicine are reduced, and the medical workers directly compare, analyze and record prepared different medicines; and the device can simplify a medicine preparing process in a pharmaceutical experiment, time of an entireexperimental process is relatively reduced, and efficiency of the pharmaceutical experiment is improved.

The invention relates to a substance detection method, specifically a method for quantitatively detecting ATP, ADP, and AMP in tissue. According to precedence order, the method includes preparing reagent-preparing solution-setting chromatographic condition-making standard curve-preparing solution of sample to be detected-measuring content of specimen. The method is suitable for wide range, applicable for quantitative measurement of ATP, ADP, and AMP in the fields of clinical examination, scientific research, medicolegal expertise, etc.; the method can detect the content of ATP, ADP, and AMP in tissue with high efficiency, has the advantages of high sensitivity, high stability, high repeatability, high precision, and high recovery rate; the method can separate ATP, ADP, and AMP in tissue within 10 minutes, effectively reduce the interference of impurities; the reagent and chemicals used in the detection method are cheap, can be easily prepared, and have low cost, the invention has rapid detection and short time, facilitates to detect in batch, and is simple for operation.

The invention discloses a high-flux ultra-sensitive double-labeled time-resolved immunochromatographic test strip and application thereof. The high-flux ultra-sensitive double-label time-resolved immunochromatographic test strip comprises a sample pad, a nitrocellulose film, a water absorption pad and a PVC bottom plate, wherein two detection lines and a quality control line are arranged on the nitrocellulose film; the detection line is respectively coated with antigens of a small molecular compound A and a small molecular compound B; and the quality control line is coated with a goat anti-chicken antibody. The invention also discloses a complete set of time-resolved fluorescent microsphere coupled antibody probe, which consists of a time-resolved fluorescent microsphere labeled anti-smallmolecule compound A antibody, a time-resolved fluorescent microsphere labeled anti-small molecule compound B antibody and a time-resolved fluorescent microsphere labeled chicken IgY antibody. The test strip and the complete set of time-resolved fluorescent microsphere coupled antibody probe can be used for rapidly, sensitively and accurately detecting various small molecular harmful compounds.

The invention belongs to the technical field of metal materials and metallurgy, and particularly relates to 700 Mpa-level austenite ferrite dual-phase low-density cast steel and a preparation method thereof. The technical problem to be solved by the invention is to provide 700 Mpa-level austenite ferrite dual-phase low-density cast steel. The cast steel comprises the following chemical componentsin percentage by mass: 0.01-1.0% of C, 0.1-0.2% of Si, 10.0-25.0% of Mn, 10.0-15.0% of Al, 0.01-1.0% of V, 0.01-1.0% of Nb, 0.01-1.0% of Ti, less than or equal to 0.01% of S, less than or equal to 0.02% of P, and the balance Fe and inevitable impurities; meanwhile, the weight percentage of Mn and Al satisfies the condition that the weight percentage of Mn plus Al is greater than or equal to 25% and less than or equal to 35%; and the weight percentage of Nb, V and Ti satisfies the condition that the weight percentage of Nb plus V plus Ti is greater than or equal to 0.05% and less than or equalto 0.5%. The cast steel has good mechanical properties.

The invention is a novel supported silver catalyst for preparing anhydrous formaldehyde by direct methanol dyhydrogenation. It is prepared by a sol-gel method (SOL-GEL method), i.e. mixing a certain amount of TEOS (tetraethoxysilane) with the water or alcohol solution containging soluble Zn and Al salts, then dripping to an inorganic silver salt water solution and preparing it through gelling, ageing, drying, baking, etc. During the gelling course, the Zn and Al salt solution added make acid-alkali neutralization to some extent, which largely enhances its activity and selectivity. It not only has high catalytic activity and longer service life but also simple and convenient to prepare, having lower price and suitable for industrial application.

The invention discloses a method and a device for implementing a local operation on a web page and belongs to the field of web technology. The method is applied to an electronic device that comprises a displaying unit and has an HTML operating environment. The method comprises the steps of: loading a web page in the HTML operating environment by address information; obtaining identification information for representing a status of local resources of the electronic device in the process of loading the web page; obtaining an operation request for representing a request for operating a first resource in the local resources; responding to the operation request with the first resource according to the operation request; and displaying a response result of the responding to the operation request with the first resource on the displaying unit. The device comprises a loading unit, an acquiring unit, a response unit and the displaying unit. According to the method and device, executing local operation on the web page is implemented, and local calling capacity of a javascript code is improved.

The invention relates to a methods and combustion equipment for burning coal water mixture, the method is that atomized coal water mixture is spurted in combustion chamber for suspension combustion, combustion flame gradually form high temperature gas in process of flowing forward, make the combustion-supporting air form a suspension combustion-supporting air driving field in hearth and return some proper high temperature gas to suspension combustion chamber burning again. After exchanging heat the gas is exhausted by chimney. The combustion equipment consists of hearth and coal water mixture jet combustion engine, the combustion chamber is in the hearth, the hearth at the injection end of coal water mixture are installed with main air duct, damper as well as many air doors. The method and equipment can combust the coal water mixture completely, and automatic discharge ash, increasing combustion ratio of coal water mixture to the ultimate can save energy and protect environment.

The invention discloses a drinking water heavy metal efficient adsorbent. The adsorbent contains exopolysaccharides which is generated by synergistic fermentation of pseudoalteromonas GHS18 with the preservation number being CGMCC No.12913 and pseudoalteromonas JP with the preservation number being CGMCC No.12914. The drinking water heavy metal efficient adsorbent has the following beneficial effects: growth and propagation between the pseudoalteromonas sp. GHS18 and the pseudoalteromonas sp. JP have remarkable synergistic effect, the adsorption effect of the adsorbent prepared from the obtained exopolysaccharides on the heavy metal in water is better than that of the adsorbent prepared from the exopolysaccharides obtained through fermentation of single marine bacteria, and remarkable progress is achieved. The prepared adsorbent can adsorb various kinds of heavy metal such as cadmium, lead and copper in the drinking water, has high adsorption efficiency and stable performance, is green and safe, and has high economic value.