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428results about How to "Superior" patented technology

Biodegradable high performance hydrocarbon base oils

Discloses novel biodegradable high performance hydrocarbon base oils useful as lubricants in engine oil and industrial compositions, and process for their manufacture. A waxy, or paraffinic feed, particularly a Fischer-Tropsch wax, is reacted over a dual function catalyst to produce hydroisomerization and hydrocracking reactions, at 700 DEG F.+ conversion levels ranging from about 20 to 50 wt. %, preferably about 25-40 wt. %, sufficient to produce a crude fraction, e.g., a C5-1050 DEG F.+ crude fraction, containing 700 DEG F.+ isoparaffins having from about 6.0 to about 7.5 methyl branches per 100 carbon atoms in the molecule. The methyl paraffins containing crude fraction is topped via atmospheric distillation to produce a bottoms fraction having an initial boiling point between about 650 DEG F. and 750 DEG F. which is then solvent dewaxed, and the dewaxed oil is then fractionated under high vacuum to produce biodegradable high performance hydrocarbon base oils.
Owner:EXXON RES & ENG CO

Mature type-1 polarized dendritic cells with enhanced IL-12 production and methods of serum-free production and use

The present invention discloses novel dendritic cell maturation-inducing cytokine cocktails, and methods for inducting type-1 polarized dendritic cells in serum-free conditions which enhance the desirable properties of DC1s generated in serum-supplemented cultures. The invention further discloses methods and systems using IFNγ and other ligands of the IFNγ receptor, in combination with IFNα (or other type I interferons), poly I:C, and other IFNα (and IFNβ) inducers to enhance the IL-12-producing properties of dendritic cells. More specifically, the present invention discloses type-1 polarized dendritic cells that have a unique combination of a fully-mature status and an elevated, instead of “exhausted”, ability to produce IL-12p70. allows for the generation of fully-mature DC1s in serum-free AIM-V medium. The invention discloses systems that use the foregoing products and methods to facilitate the clinical application of DC1-based vaccines and the identification of novel factors involved in the induction of Th1 and CTL responses by DC1.
Owner:KALINSKI PAWEL

Data mining-based plate shape control key process parameter optimization system

The invention relates to a data mining-based plate shape control key process parameter optimization system, and belongs to the technical field of automatic control of cold continuous rolling plate shape. The data mining method is adopted for acquiring key process parameter optimization settings which can meet the good cold continuous rolling plate shape. The system is characterized by comprising the following functional modules: an actual data acquisition and storage module, a process data pre-processing module, a process data storage module, a process data correlation analysis module, a process data clustering analysis module, a process data association rule analysis module, an optimization result generating module and an optimization result application module. The system has the advantage that the good plate shape can be obtained by applying the plate shape control system. The method avoids endless theoretical research on plate shape control and fully utilizes actual plate shape control process data containing successful operation experience of field operators, and the plate shape process parameter settings which can obtain the good plate shape are acquired by data mining, so the plate shape qualification rate and the finished product rate of cold continuous rolled strip steel are improved.
Owner:BEIJING SHOUGANG AUTOMATION INFORMATION TECH

Re-switch on method for electric tansmission device

ActiveCN1588729ASolve the problem of correct phase selection and quick tripAdvancedEmergency protective arrangements for automatic disconnectionPhase splittingUltra high voltage
This invention relates to reclosing method for power transmission line. For joint parallel double circuit type: each circuit being equiped with individual protector, main protection being phase-splitting current differential protection or phase-command longitudinal protection; for various type single circuit fault or overline fault withni a zone, tripping fault being detected, determinnig no serious permanent fault, sequentially reclosing the tripping phases. For double-circuit fault, there must be two different type circuit being of no fault for reclosing, if not, two circuits must be tripped-off. This invention method increases the reclosing rate, together with minimizing the shock to the system after reclosing permanent fault.
Owner:NR ELECTRIC CO LTD

Control method and system for intersection signal timing guaranteeing priority of buses

The invention relates to a control method and a system for intersection signal timing guaranteeing the priority of buses. The system adopts an ultrahigh frequency RFID (Radio Frequency Identification) technique to achieve the remote recognition, acquisition and control of information of an onboard unit; and adjusting an intersection signal timing scheme through an optimization algorithm by collecting the information of buses in all direction of an intersection, so as to provide control of passing priority for buses. The control method solves the bus priority mode on common urban roads, and realizes the bus passing priority on the basis of maximizing the overall operation efficiency of vehicles at the intersection, so as to improve the operation efficiency of buses. In addition, the control method is low in cost and convenient to implement and becomes effective fast, and achieves the win-win of the bus priority and the overall operation efficiency of the intersection, so as to reduce delays of buses at urban intersections and ensure the punctuality of buses.
Owner:GUANGXI HUNTER INFORMATION IND

Method for optimizing cutting parameters considering machining energy efficiency

The invention discloses a method for optimizing cutting parameters considering machining energy efficiency. The method comprises the following steps that a cutting parameter optimization model of a numerical control machine tool is built according to a cutting process of the numerical control machine tool, constraint conditions of the cutting parameter optimization model are built according to performance and machining requirements of the numerical control machine tool, and the built cutting parameter optimization model and the constraint conditions of the cutting parameter optimization model are worked out through a modified multiple-target teaching and learning optimization algorithm to obtain optimized cutting parameters, wherein subject scores in the algorithm are the cutting speed v, the feeding speed f and the cutting depth ap of the numerical control machine tool, a student X is an individual possessing the three subject scores (v, f and ap), namely, X=(v, f and ap), a class is a group with NP students, and NP is a random integer. The method can efficiently optimize the machining cutting parameters by considering machining energy consumption, thereby solving the existing technical problems in the cutting parameter optimization process.
Owner:HUAZHONG UNIV OF SCI & TECH

Hair curling iron

InactiveUS20050081876A1SuperiorSuperior hair curling ironCurling-ironsCurling-tongsEngineeringHair characteristics
A hair curling iron including a lower case composed of a lower grill part and a lower heating part, a lower closing part which closes the top side of the lower case's lower grill part, a lower heater installed inside the lower heating part of the lower case in which the lower closing part has been assembled, an upper grill part and an upper heating part composing the upper case, an upper closing part which closes the bottom side of the upper grill part of the upper case. The hair curling iron is composed of the upper heater installed inside the upper heating part of the upper case in which the upper closing part has been assembled. A rounded concave part composing the surface for hair to be easily curled by being installed in the lower heating part of the lower case, a concave heat plate on both sides equipped with a lower exposed part which is exposed on both sides of the lower case and composed of the block part in the surface in order to more smoothly curl hair by contacting the surface of the concave part of the concave heating plate. A block heating plate construction include an upper exposed part that is exposed to both sides of the upper case on both sides. According to this hair curling iron, a block part is formed in the block heating plate installed in the upper case and a concave part is formed in the concave heating plate installed in the lower case and therefore able to not only curl hair more effectively. Also, as the block heating plate's exposed part is larger than the concave heating plate's exposed part, the block heating plate and the concave heating plate generally maintain the same temperatures, thereby more effectively curling the hair.
Owner:CREATE

Coal-minin method of high-dipping thick seam

The invention discloses a method for coal mining to the greatly oblique coal layer, comprising two steps: designing the method and back producing technique, placing slit flexible shielding support in the coal layer of 8-10m and deciding return airway and cutting point; the back producing technique includes enlarging airway, installing support, put down support and desinence of working face, etc. The method has simple operational steps as well as remarkable economic benefit.
Owner:KAILUAN GRP

Simple method for detecting phase sequence of three-phase industrial-frequency alternating current and detection device

The invention discloses a simple method for detecting the phase sequence of three-phase industrial-frequency alternating current and a detection device. In the invention, the zero-crossing rising edges of the three-phase voltage are respectively sampled, measured at a single point and compared by using the principle of phase time difference of the three-phase industrial-frequency alternating current, and the phase sequence and phase position of the three-phase industrial-frequency alternating current are judged by calculating the phase time difference. The method comprises the following steps: measuring the voltage rise zero-crossing point of any phase (defined as A) of the three-phase alternating current, and starting to calculate time with a clock by using the rising edge zero-crossing point of the Phase A as the reference point; then sequentially measuring the voltage rise zero-crossing points of the other two phases, and measuring the time differences T1 and T2 between the phase position rise zero-crossing point and the reference point of each of the two phases; and judging Phase B and Phase C through calculation. The method can measure three-phase industrial-frequency alternating current. The integrated multifunctional detection device has the advantages of miniaturization, systematization, simple structure and small calculated quantity, and can reduce the labor intensity of electrical installation and maintenance personnel.
Owner:CHINA NON-FERROUS METALS PROCESSING TECH CO LTD

Indoor inspection robot for transformer substation

The invention discloses an indoor inspection robot for a transformer substation. The indoor inspection robot comprises an X-direction track, a Y-direction track, a mechanical arm and a detecting component, wherein the Y-direction track is arranged on the X-direction track and can move back and forth along the X-direction track; the mechanical arm is arranged on the Y-direction track through a mobile platform and the mobile platform can move back and forth along the Y-direction track; the detecting component is arranged on the mechanical arms; and omni-directional inspection for indoor equipment is realized by combined motion of the X-direction track, the Y-direction track and the mechanical arm.
Owner:STATE GRID INTELLIGENCE TECH CO LTD

PCB welding spot defect detection method

The invention provides a PCB welding spot defect detection method. Firstly, a welding spot image is preprocessed; shape characteristic parameters and texture characteristic parameters of the welding spots are extracted; the optimal RBF kernel function in SVM classification is adopted to construct the SVM classifier, the second SVM multi-classifier based on HOG features is utilized to obtain the final classification accuracy for false detection of welding spots, the classification accuracy of the method reaches 98.46% or above, and the method has certain superiority.
Owner:GUILIN UNIV OF ELECTRONIC TECH

Novel process for on-line removing of scale at surface of hot-rolled copper plate belt

The invention discloses a novel process for the on-line removing of scale at the surface of a hot-rolled copper plate belt, which is a process for scraping, brushing and purging scale at the surface of a blank ingot during hot rolling. The process comprises the following steps: scraping and brushing the scale on the upper surface or the lower surface of a rolled piece (3) by a scraping and brushing roller at the inlet side and the outlet side of a working roller, scraping off the scale which already turns up because of hot rolling, and avoiding pressing into the inside of the rolled piece during rolling; the process can solve the long-term puzzling problem of the pressing-in of the scale in the hot-rolling process of a copper plate belt, can be used for common hot-rolling materials, also can be used for hot-rolling quenching materials, can lower the energy consumption and the cost, can improve the labour production conditions of workers and can better produce a blank used for a cold-rolling copper plate belt with no scale pressed into the surface.
Owner:CHINA NON-FERROUS METALS PROCESSING TECH CO LTD

Radar intelligence simulation based air intelligence fusion performance evaluation system and method

The invention belongs to the technical field of performance and efficiency evaluation of air intelligence fusion systems, and discloses a radar intelligence simulation based air intelligence fusion performance evaluation system and method. The air intelligence fusion performance evaluation system adopted by the method comprises a radar intelligence simulation subsystem and an air intelligence fusion performance evaluation subsystem of a dual-independent subsystem structure, wherein the radar intelligence simulation subsystem is connected with the air intelligence fusion performance evaluation subsystem through a data transmission layer and a local area network to form a parallel network group; the radar intelligence simulation subsystem is connected with an air intelligence fusion system of tested equipment through the Ethernet or an RS232 data transmission line and an RS485 data transmission line; and the air intelligence fusion performance evaluation subsystem is connected with the air intelligence fusion system of the tested equipment through the Ethernet or the RS232 data transmission line and the RS485 data transmission line. According to the air intelligence fusion performance evaluation system and method, scanning characteristics of an actually mounted radar can be simulated, and information including detection precision, blind detection zones, outliers, discovery probability and the like of the radar can be reflected; and moreover, various performance indexes of a multi-sensor air intelligence fusion processing system can be detected.
Owner:UNIT 63892 OF PLA

High-tenacity and low-tension spinning device

The invention relates to a high-tenacity and low-tension spinning device, which is used for ring spinners in textile industry. In the invention, a frame member is arranged along the length direction of a ring spinner in the middle of a spinning section between a front jaw and a yarn guide hook, a false twisting unit arranged corresponding to a spindle is fixed on the two borders of the frame member by two bearings and makes tangential transmission by a driving belt driven by a motor, and a yarn tension damping needle rod is arranged in the false twisting unit. By using the invention, the spinning tenacity is greatly improved, the spinning tension is reduced, and the spinning tension difference of large cop, middle cop and small cop is reduced, thereby realizing low-tension spinning; yarn filoplume is reduced, rubber roller is not wound by fibre frequently, and flyings are reduced, thereby improving spinning environment and spinning quality; heavy twist torsional moment is featured, the device can be applied to yarn with bigger hardness and cruder fibre, fibre material scope is enlarged, and raw material cost is reduced; and installation of the low-tension spinning device keeps the mechanism of the traditional ring spinners unchanged and is fit for modification of ring spinners for cotton / yarn / ramie / silk spinning.
Owner:SHANGHAI TEXTILE GRP DETECTION STANDARD CO LTD

Automatic laying method for electric cable and apparatus thereof

InactiveCN101478124ANursing safetyReliable careApparatus for laying cablesEngineeringWindlass
The invention discloses a method and a device for automatically laying cables. The method comprises the steps of (1) preparing for construction, and installing and configuring a cable controller, a cable reel support and a windlass; (2) installing a group of guide brackets at proper intervals on the path where cables need laying; (3) laying wire ropes along the guide brackets, wherein, one end of each of the wire ropes is connected with the windlass, and the other end thereof is connected with one end of a cable; (4) turning the windlass to lay the cables on the guide brackets by the controller. The invention has the advantages of less labor, little investment, wide application, reducd labor intensity of workers, and convenient maintenance.
Owner:THE FIRST COMPARY OF CHINA EIGHTH ENG BUREAU LTD +1

Method for designing conformal array antennas distributed in aperture field of spherical cap

InactiveCN103178359AAvoid Stochastic Optimization AlgorithmsSuperiorAntenna arraysAntennas earthing switches associationRadarSoftware engineering
The invention discloses a method for designing conformal array antennas distributed in an aperture field of a spherical cap. The method includes distributing antenna arrays on the spherical cap; adjusting distribution of the aperture field by a parameter weighting process on the basis of a Bessel function to acquire continuous distribution of the aperture field for shaping different types of beams; and computing radiuses of circles in two or more circular arrays corresponding to the different types of beams by a discrete process and exciting antenna units. The aperture field is distributed on the spherical cap comprising the circular arrays, circle centers of the circular arrays are distributed on a connecting line between the vertex and the spherical center of the spherical cap, and at least three antenna units are arranged on each circle of each circular array and are in central symmetry with one another, and the antenna units are uniformly distributed on the spherical cap. The method can be used for designing spherical conformal array antennas, computation such as complicated coordinate transformation and an unordered multi-dimensional optimization procedure are omitted, the method can be widely applied to designing conformal array antennas for phased array radar, warships and the like, and the beams can be quickly shaped.
Owner:ZHEJIANG UNIV

Ontology-based travel information recommending method

An ontology-based travel information recommending method is provided, and aims to solve the problems that existing travel recommending results are inaccurate, and recommendations are staticized; the method comprises the following steps: 1, building a travel sight spot ontology; 2, using a FP-Growth algorithm to excavate association rules between users; 3, using an association rule threshold value to split users into associated users and random users; 4, applying the cooperation filtering algorithm combining time factor and evaluate factor to associated users, thus forming sight spot recommendations; 5, applying the cooperation filtering algorithm based on the travel sight spot ontology to random users, thus forming sight spot recommendations; 6, combining the travel sight spot recommending results of step 4 and 5; 7, carrying out contextual information filtering for the combined result; 8, using the filtered result for information development based on the travel sight spot ontology. The ontology-based travel information recommending method is applied to the travel information recommending field.
Owner:HARBIN ENG UNIV

Comb-shaped low-slump concrete plastic-reserving agent with poly-sulphoacid structure

ActiveCN101774779AImprove dispersion retentionGood plasticityChemistryChemical compatibility
The invention relates to a comb-shaped plastic-reserving agent with a poly-sulphoacid structure particularly suitable for low-slump concrete, which is prepared with allyl polyether, sodium styrene sulfonate and sodium alkyl sulfonate as raw materials. The average molecular weight of the allyl polyether is 400-1500, the feeding amount of the allyl polyether accounts for 50-92 percent of the total molecular weight of the raw materials; and the molar ratio of the sodium styrene sulfonate and the sodium alkyl sulfonate is 1:0.2-1:5. The preparation method comprises the following steps: mixing the aqueous solution of each raw material monomer, heating to 65-98 DEG C, adding an initiator ammonium persulfate solution, completing the dropping within 2-4 hours, maintaining the temperature for 1 hour, cooling until the temperature is below 40 DEG C, adding caustic soda liquid for neutralization, and taking out the product, thereby obtaining the plastic-reserving agent, a comb-shaped polymer with the poly-sulphoacid structure. The structure of the polymer combines the advantages of two water reducing agents, naphthalene and polycarboxylic acid. Therefore, the polymer can realize excellent plastic-reserving property of the low-slump concrete with the slump being 7-9cm. simultaneously; the polymer has good physical and chemical compatibility with the two water reducing agents, naphthalene and polycarboxylic acid.
Owner:NANJING RUIDI HIGH TECH

Preparation method of microporous nanocarbon balls with high specific surface area and uniform and regular aperture

The invention discloses a preparation method of microporous nanocarbon balls with high specific surface area and uniform and regular aperture. The microporous nanocarbon balls with uniform aperture are obtained by synthesizing ionic liquid, preparing powder, treating the powder, carbonizing, performing aftertreatment and activating. By the mode and according to the preparation method of the microporous nanocarbon balls with high specific surface area and uniform and regular aperture, various metal salts and organic ligands can be selected to synthesize raw materials in the ionic liquid and carbonize in inert gases, and metal oxide is removed by an inorganic acid, so that the production cost is greatly reduced, the production flow is safe and reliable, the practical value is prominent, and industrialized production is promoted.

Demolishing method for widened overpass of highway

InactiveCN101985827ASuperiorEnsure operational safetyBuilding repairsEconomic benefitsRoad surface
The invention relates to the technical field of highways, and discloses a demolishing method for a widened overpass of a highway, which gradually demolishes according to a sequence of a main span superstructure, a side span superstructure, a side span pier and a middle pier by a method of implementing in sections, enclosing in ways and ensuring safety. The method of the invention comprises the following construction steps: preparing for construction; opening and constructing median strip; enclosing one way of the highway and protecting the road surface; completely removing beam surfaces and collision guardrails; lifting the collision guardrails and beam slabs away; demolishing a pier 6 column coping; clearing the site; opening one roadway; enclosing the other roadway; removing beam surfaces and collision guardrails; lifting the collision guardrails and beam slabs away; demolishing the pier 6 column coping; finally removing and lifting the middle pier coping and pier columns; and clearing the site. The invention can ensure smooth and safe operation of the highway in the construction period, so that the construction period is shortened and large amounts of construction costs is saved. The invention has simplicity, wide range of use, easy popularization and better social and economic benefits.
Owner:中铁七局集团第一工程有限公司

Adsorbing-catalyzing agent based on amino-functionalized ionic liquid and preparation method thereof

The invention discloses an adsorbing-catalyzing agent based on amino-functionalized ionic liquid. The adsorbing-catalyzing agent is prepared by taking a mesoporous moecular sieve SBA-16 as a carrier and amino-functionalized ionic liquid 1-(3-aminopropyl)-3-[3-(triethoxysilyl)propyl]-4,5-dihydroimidazole chloride as an active component and grafting the amino-functionalized ionic liquid to the carrier, wherein 1-10 mmol of the amino-functionalized ionic liquid is loaded in every 1 g of the adsorbing-catalyzing agent. The adsorbing-catalyzing agent integrates an adsorption capturing function and a catalytic conversion function into a whole and can achieve synchronous adsorption and conversion of CO2 and reduce the cost of a CUU technique.
Owner:TAIYUAN UNIV OF TECH

Friction coefficient model optimizing system and method in rolling process

The invention discloses a friction coefficient model optimizing system and method in the rolling process, and belongs to the technical field of control mathematical models in the rolling process. The Levenberg-Marquardt optimization algorithm is adopted to optimize friction coefficient model parameters in the rolling process. The friction coefficient model optimizing system is characterized by comprising a rolling process database, a rolling process technological parameter data sheet and following function modules which are a technological data reading and processing module, a technological data dependency analysis module, a Levenberg-Marquardt optimization algorithm analysis module, an optimization result storage module and an optimization result application module. The friction coefficient model optimizing system has the advantages that on the premise that key technological parameters are fully considered, the method can effectively process redundant parameters, actual rolling parameters on the site are utilized for directly conducting regression optimization on parameters of a nonlinear polynomial rolling process friction coefficient model, the linear processing process is prevented from being carried out on the complex friction coefficient model, the actual rolling situation on the site can be better reflected, friction coefficient setting computational accuracy is improved, the requirement for high-accuracy rolling is met, and therefore the product quality and yield are improved.
Owner:BEIJING SHOUGANG AUTOMATION INFORMATION TECH

Novel adsorbent compositions

InactiveUS20130340614A1SuperiorHigh crush strength valueGas treatmentMolecular sieve catalystsCrystalliteAir separation
Adsorbent compositions useful in adsorption, separation and purification processes are made using silicone-derived binding agents. The adsorbent compositions having enhanced adsorption rate and crush strength properties are made from agglomerated crystallite particles bound with silicone-derived binding agents. The silicone binder precursors are calcined during the manufacturing process to produce the silicone-derived binding agents. The adsorbent compositions are preferably used in air separation processes.
Owner:PRAXAIR TECH INC

Machine tool and method for machining spiral bevel gear

The invention relates to numerical-control mechanical processing equipment and methods, in particular to a machine tool and a method for machining a spiral bevel gear. The machine tool is provided with a conveyer belt for automatically loading / unloading and a manipulator for loading / unloading the gear, thus, the full automation for machining the gear is realized. The machine tool has a simple structure and a small floor space, can be used for wet-cutting the spiral bevel gear, and can also be used for dry-cutting the spiral bevel gear; the machine tool can be used as a teeth-milling machine of the spiral bevel gear, and can also be used as a teeth-grinding machine of the spiral bevel gear; and the machine tool not only can carry out precision detection on machined gears, but also is provided with an automatic loading / unloading device.
Owner:CHANGSHA HALIANG KAISHUAI PRECISION MASCH CO LTD

Preparation method of cellulose-based multi-nutrient polymer slow-release fertilizer

The invention relates to the field of water-absorbent and water-retention type slow-release fertilizer and discloses a preparation method of cellulose-based water-absorbent and water-retention type biodegradable multi-nutrient polymer slow-release fertilizer. The method comprises specific steps as follows: formaldehyde and urea react at certain temperature, and a hydroxymethylurea solution is obtained; acrylic acid, acrylamide monomers and cellulose in calculated amount are added to the other reactor, and a certain quantity of KOH solutions are added to adjust the neutralization degree of acrylic acid; initiators, monopotassium phosphate and the prepared hydroxymethylurea solution in calculated amount are sequentially added; the mixture is mixed uniformly and reacts at the certain temperature, and a viscous product is obtained; finally, the viscous product is granulated and dried, and the cellulose-based water-absorbent and water-retention type biodegradable multi-nutrient polymer slow-release fertilizer is obtained. The prepared cellulose-based water-absorbent and water-retention type biodegradable multi-nutrient polymer slow-release fertilizer has high water-absorbent and water-retention capability, and nitrogen, phosphorus and potassium elements have excellent slow release performance.
Owner:ZHONGBEI UNIV

Communication signal modulation mode identification method based on evolved BP neural network

ActiveCN110120926ASolve the problem that the initial weight structure is difficult to determineSolve elusive problemsModulation type identificationLocal optimumFeature extraction
The invention provides a communication signal modulation mode identification method based on an evolution BP neural network, and the method comprises the steps: carrying out the preprocessing and feature extraction of obtained communication signals with different known modulation modes, and enabling an extraction result to serve as an input feature parameter of the neural network; optimizing the initial weight value and threshold value of the BP neural network by using a cat swarm evolution mechanism of a composite search mode and using the recognition rate as an objective function; and obtaining an optimal parameter as an initial parameter of the neural network for later recognition, and then training the BP neural network by using the input characteristic parameter and the optimal initial parameter to obtain the BP neural network with the optimal system parameter; acquiring a communication signal with an unknown modulation mode, and identifying the communication signal with the unknown modulation mode by using the BP neural network with the optimal system parameter to obtain an identification result. Compared with a traditional BP neural network for modulation recognition, the method has higher recognition rate under the same signal-to-noise ratio, and the situation that a local optimal solution is caught in the training process is avoided as much as possible.
Owner:HARBIN ENG UNIV

Drifting roe hatching method and hatching device

The invention discloses a drifting roe hatching device. The drifting roe hatching device comprises a cylindrical barrel and a contraction barrel located below the cylindrical barrel, wherein the top of the contraction barrel communicates with the cylindrical barrel; the bottom area of the contraction barrel is smaller than the top area of the contraction barrel; and the cylindrical barrel is composed of an upper edge fixing ring, a lower edge fixing ring and a first annular gauze surrounding the two fixing rings. The contraction barrel is composed of a contraction fixing ring located below thecontraction cylinder and a second annular gauze for surrounding the contraction fixing ring and the lower edge fixing ring; and the diameter of the contraction fixing ring is smaller than that of thelower edge fixing ring. By the adoption of the drifting roe hatching method and hatching device, the flushing flow can be adjusted according to different drifting roes, so that the optimal effect isachieved, and the survival rate of the roes is increased; and the hatching device is simple in manufacturing process, low in manufacturing cost and convenient to carry.
Owner:四川水利职业技术学院

Method for preventing and controlling water bloom pollution organisms in eutrophicated water body

The invention relates to a method for preventing and controlling water bloom pollution organisms in eutrophicated water body, which comprises the following step: according to the hydrological condition and water bloom condition of the water body, spraying natural plant algae inhibitor into the water body, wherein the natural plant algae inhibitor comprises the following components in percentage by mass: 60 to 80 percent of water leaching extract of hairyvein agrimonia herb and bud, 10 to 20 percent of vitamin C, 5 to 10 percent of amino acid and 5 to 20 percent of citric acid. The biological algae inhibitor used by the method is natural plant extract, can be biodegradable in a short period, and has the half-life period about 7 days proved by experiments, so the biological algae inhibitor cannot bring about secondary pollution to the environment, and dose not have post-treatment problem; moreover, the biological algae inhibitor has low price which is only dozens of yuan per kilogram, and is suitable for popularization and promotion.
Owner:SICHUAN YIKE ENVIRONMENTAL PROTECTION SCI ANDTECH

Porous carbon material and its preparation method

The invention discloses a porous carbon material and its preparation method. The preparation method provided by the invention successively comprises steps of: raw material and auxiliary material selection, pulverization, spheroidization, grading, burdening, mixing, molding, roasting and the like. Green petroleum coke and green pitch coke are creatively used as raw materials. A filtration materialprepared after spheroidization of a green coke powder has large contractility, high strength, uniform pore distribution, smooth pore path, high filtration precision and good transmissivity, is not easy to block during the purification process, is easy to regenerate, and has long service life. The porous carbon material prepared in the invention can be widely used as a filtration material, a thermal insulation material, a conductance electrode and the like.
Owner:ZIGONG YUXING CARBON PRODS

Concatenate antigen membrane detecting kit and its preparing method

The invention relates to a test reagent box of multiple antigen membrane method which is used for diagnosing RA, it includes tablets and response groove, the tablets hold on the response groove; the tablets gap corresponding to the response groove gap; there is multi-personal reaction zone on the tablets which correspond with the multi-groove of reaction groove, there is a gap on the top of each groove; membrane bar test paper adhere to each reaction zone and with RA correlate antigen and response control belt; the RA related antigen is the corresponding antigen of RF, anti-CCP, anti-RA-33 antibody, anti-Sa antibody, anti-P68 or more than four kinds of antigen in antigen epitope polypeptide or antigen epitope polypeptide, the response control belt is a mixture of man IgG and man IgM. The reagent box in this invention overcome the lack of detection sensitivity and Specificity of the single autoantibody and the red tape of several autoantibody detection in a single operation, it provide the accuracy and convenience of RA diagnosis. The invention also disclosed the method of how to make the test box.
Owner:SHANGHAI KEXIN BIOTECH
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