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35results about How to "Efficient technical means" patented technology

Nanometer level polishing solution and preparation method thereof

ActiveCN102311706AMeet the requirements of thinning grinding processEasy to polishPolishing compositions with abrasivesSilica gelSolvent
The invention discloses a nanometer level polishing solution and a preparation method thereof. The polishing solution is prepared from the following components in percentage by mass: 0.1 to 10 percent of monocrystal artificial diamond micro powder, 0.1 to 5 percent of aluminum oxide micro powder, 0.1 to 10 percent of silica gel, 0.3 to 10 percent of surfactant, 0.05 to 4 percent of dispersing agent, 0.5 to 1 percent of lubricant, 0.01 to 1 percent of chemical PH value regulator and 60 to 98.2 percent of solvent. The invention also discloses the preparation method for the nanometer level polishing solution. By the method, mixed serous fluid is prepared from the nanometer level diamond, the aluminum oxide and the silica gel, so an ideal polishing effect is achieved, the requirement of a process for thinning and grinding substrates (silicon carbide and sapphire) for GaN extension is met, and a technical means is provided for a polishing process for semiconductors.
Owner:INST OF MICROELECTRONICS CHINESE ACAD OF SCI

Plastic bottleneck excess material detecting method and device based on machine vision

The invention discloses a plastic bottleneck excess material detecting method and device based on machine vision. Detection objects are semitransparent and nontransparent plastic bottle products formed by hollow blow molding, and a detection defect type is excess materials in bottlenecks. The method comprises the following steps of: conveying molded plastic bottles to a detection station by a conveying device, and lighting up light sources through a position sensor, and triggering cameras to photograph; establishing an imaging system according to appropriate light sources, cameras and distances between the light sources and the plastic bottles and between the cameras and the plastic bottles, wherein the image effect only highlights details in the bottlenecks and shields the interference of other details; transmitting images to a computer, and determining whether excess materials are in the bottles through image processing software; and removing bottles with excess materials, and recording the removed bottles. According to the invention, whether excess materials exist in plastic bottlenecks can be detected rapidly and accurately on line; and the plastic bottleneck excess material detecting method and device based on machine vision have the characteristics that the imaging scheme can highlight details in bottlenecks, so that the subsequent image processing method is simple, the computation is less, and moreover, the whole detection system is high in stability.
Owner:SOUTH CHINA UNIV OF TECH

Three dimensional (3D) modeling and visualizing method of prehistoric settlement sites

InactiveCN102214367ARich human-computer interaction functionsEfficient technical means3D modellingTerrainDigital elevation model
The invention discloses a three dimensional (3D) modeling and visualizing method of prehistoric settlement sites, comprising the following steps of: (1) acquiring settlement site terrain data from pictures representing settlement site terrain altitude data and vestige information through an image processing method and digital elevation models; (2) establishing vivid settlement site virtual scenes according to truthful data; and (3) performing a human-computer interaction function in the settlement sites 3D scenes. According to the method in the invention, the image processing technology and the 3D visualizing technology are comprehensively utilized; based on settlement site archaeological data, the prehistoric settlement site virtual scenes are established for providing conditions for researching and developing the settlement sites; and a novel method for digitizing archaeological information is provided.
Owner:NANJING UNIV OF INFORMATION SCI & TECH

Method for automatically finding network content quotation

ActiveCN1770159ASpeed ​​up the auto-discovery processLow hardware requirementSpecial data processing applicationsInformation retrievalNatural language understanding
The invention relates to a method for finding network contents being quoted automatically which comprises steps of: introducing pre-searching process for accelerating automatic found process, employing the indexing service provided by searching engine website to eliminate web page grabs and establishing content index. The invention has the advantages of having low requirement on hardware and of being abet to protect intelligent property of network contents.
Owner:新方正控股发展有限责任公司 +2

Representation method of oil-gas exploration and oil-gas reservoir by taking vital bacterium abnormality and dead bacterium abnormality of methane-oxidizing bacteria as indicators

The invention discloses a representation method of oil-gas exploration and oil-gas reservoir by taking vital bacterium abnormality and dead bacterium abnormality of methane-oxidizing bacteria as indicators, comprising the following steps: collecting a sample above an oil-gas exploration and oil-gas reservoir representation area according to the specific grid degree, the sampling depth and the sampling amount, packaging and saving the sample according to the specific condition; adopting a conventional microorganism counting method to obtain the vital bacterium quantity and the dead bacterium quantity of the methane-oxidizing bacteria in the sample; drawing an equal bacterium line of the vital bacteria and an equal bacterium line of the dead bacteria on a map, a topographic map, a geologic map or a topography-geologic map to obtain the vital bacterium abnormality and the dead bacterium abnormality; comprehensively comparing the vital bacterium abnormality and the dead bacterium abnormality; and estimating and predicting the underground oil-gas resource condition of the oil-gas exploration and oil-gas reservoir representation area, or extracting an exploitation scheme of the oil-gas reservoir according to the characteristics of the vital bacterium abnormality and the dead bacterium abnormality and the differences of the vital bacterium abnormality and the dead bacterium abnormality, and combining the results of geological exploration, geochemical exploration and geophysical exploration.
Owner:GUANGZHOU ENENTA CHEM SCI & TECH

Molecular marker related to lambing number character of sheep and application thereof

The invention belongs to the technical field of preparation of molecular markers for livestock, and particularly relates to a preparation method and application of a molecular marker which is related to lambing number character of sheep and used for sheep marker assisted selection. The molecular marker is obtained by FSHR gene cloning, and the nucleotide sequence of the molecular marker is as shown in a sequence table SEQ ID NO:1. One T88 - C88 base substitution is generated at the 88 bp of the sequence table SEQ ID NO:1, thus resulting in BsiEI-RFLP digestion polymorphism. The invention also discloses a primer for amplifying a part of DNA (deoxyribonucleic acid) sequence of an FSHR gene and a method used for polymorphism detection, and provides a new molecular marker for selection assisted by the marker related to lambing number character of sheep.
Owner:甘肃兰天同和农业有限公司

Method for implementing oil-gas exploration and oil-gas reservoir characterization by using living bacteria exception and total bacteria exception of methylosinus trichosporium as indexes

The invention discloses a method for implementing oil-gas exploration and oil-gas reservoir characterization by using living bacteria exception and total bacteria exception of methylosinus trichosporium as indexes. The method comprises the following steps of: acquiring a sample above an oil-gas exploration and oil-gas reservoir characterization area according to the specific grid degree, samplingdepth and sampling quantity, and packing and storing the sample according to the specific conditions; simultaneously acquiring the living bacteria number and the total bacteria number of the methylosinus trichosporium in the sample by adopting a conventional microbe counting method, and drawing an equal living bacteria line and an equal total bacteria line on a map, a topographic map, a geologic map or a topographic-geologic map to obtain the living bacteria exception and the total bacteria exception; comprehensively comparing the living bacteria exception with the total bacteria exception; making a judgment and a prediction or providing an oil-gas reservoir exploitation scheme for the underground oil-gas resource condition of the oil-gas exploration and oil-gas reservoir characterizationarea according to the characteristics, similarities and differences of the living bacteria exception and the total bacteria exception by combining the results of geologic exploration, geochemical exploration and geophysical exploration.
Owner:SUN YAT SEN UNIV +1

Calculation method for optical navigation data of mars approaching section based on installation matrix correction

InactiveCN109059936AMeet the needs of autonomous navigation tasksEfficient technical meansInstruments for comonautical navigationSpace probeComputer science
The invention provides a calculation method for optical navigation data of a mars approaching section based on installation matrix correction. The method comprises the following steps of step I, enabling a mars probe to adjust the posture of the probe in a process of approaching mars so that an optical navigation sensor points to mars; step II, enabling the optical navigation sensor to image mars,phobos and deimos; and step III, processing a navigation image by use of a center point extraction technology, determining a navigation target source center and acquiring a sight line direction of anavigation target source relative to the mars probe. With the calculation method for the optical navigation data of the mars approaching section based on installation matrix correction, the autonomousnavigation task requirement of Mars exploration in future can be satisfied and good technical means is provided for high-precision autonomous navigation of a deep space probe.
Owner:SHANGHAI SATELLITE ENG INST

Preparation method of micro-nano lignocellulose composite material, composite material and application

The invention discloses a preparation method of a micro-nano lignocellulose composite material, the composite material and application, the method comprises the following steps: S1, adding lignocellulose into a deep eutectic solvent for heating swelling treatment, and then carrying out mechanical treatment to obtain a micro-nano lignocellulose dispersion liquid; s2, adding a catalyst into the micro-nano lignocellulose dispersion liquid, and carrying out a heating reaction to prepare the micro-nano lignocellulose composite material containing the self-polymer and the graft polymerization modified micro-nano lignocellulose at the same time. The method has the beneficial effects that the micro-nano lignocellulose and the micro-nano lignocellulose composite material are efficiently prepared by a one-pot method under the eutectic solvent system; the method has the remarkable characteristics of environment-friendly and green preparation process, low solvent cost and the like, and also has the advantages of mild reaction conditions, high operability, no chemical pollution and the like; the prepared micro-nano lignocellulose composite material can be widely applied to the fields of engineering materials, packaging materials, biomedical materials and the like.
Owner:NANJING FORESTRY UNIV

Ground navigation and probe autonomous navigation switching method during Mars capturing and approaching phase

ActiveCN109059935AMeet the needs of exploration and navigation tasksEfficient technical meansInstruments for comonautical navigationSpace probeRadio navigation
The invention provides a ground navigation and probe autonomous navigation switching method during a Mars capturing and approaching phase, which comprises the following steps: step 1: turning on an optical navigation sensor when a cruise section is 10 million kilometers to 100,000 kilometers from Mars in the process of a Mars probe approaching Mars; step 2: analyzing radio navigation and optical navigation accuracy based on radio navigation and optical navigation measurement data; step 3: determining a navigation switching strategy such as ground radio navigation absolute priority policy / probeoptical autonomous navigation absolute priority strategy / combined navigation information fusion strategy; and step 4: turning off the optical navigation sensor and switching to a ground radio navigation when the distance to Mars is less than 100,000 kilometers. According to the ground navigation and probe autonomous navigation switching method during the Mars capturing and approaching phase, thedemand for future Mars exploration and navigation missions can be met, and a good technical method for high-precision navigation of deep space probes is provided.
Owner:SHANGHAI SATELLITE ENG INST

Treponema pallidum IgG antibody biotin avidin enzyme-linked immune detection kit and preparation method thereof

The invention relates to a treponema pallidum IgG antibody biotin avidin enzyme-linked immune detection kit and a preparation method thereof, which relates to the syphilis detection. The kit comprises a concentrated washing liquid bottle, a negative and positive control bottle, a biotin mark antihuman IgG specific fragment gamma chain monoclonal antibody bottle, a horseradish peroxidase mark avidin bottle, a TMB coloured solution bottle A, a coloured solution bottle B, a reaction stopping solution bottle, a micropore plate coated with recombinant antigen. The treponema pallidum has infectious standard strain Nichol strain and treponema pallidum non-infectious standard strain Reiter strain, by using a proteomics method, the treponema pallidum proteomics can be separated through dimensional electrophoresis, protein with strong immunogenicity can be identified by different patient or infectious animal serum, and then an antigen marker can be searched. The antigen marker is used for syphilis confirmation test, so that diagnosis sensitivity and specificity can be increased, a window stage is shortened. The treponema pallidum antibody can be sensitively detected and enables quantitative measurement, and has the advantages of cheap price, simple operation and accurate result.
Owner:ZHONGSHAN HOSPITAL XIAMEN UNIV

Z-type heterojunction Cu2O_graphene_alpha-Fe2O3 nanotube array photocatalyst and preparation thereof

The invention relates to a Z-type heterojunction Cu2O_graphene_alpha-Fe2O3 nanotube array photocatalyst material and a preparation method of the Z-type heterojunction Cu2O_graphene_alpha-Fe2O3 nanotube array photocatalyst material. The method comprises the following steps that firstly, an alpha-Fe2O3 nanotube array (FNA) is prepared on a pure iron slice by conducting an anodic oxidation method twice; secondly, graphene oxide is deposited on the FNA surface prepared in the first step through an electrochemical cyclic voltammetry method and is reduced to graphene (G), and a G / FNA composite is obtained; thirdly, Cu2O nanoparticles are deposited on the surface of the G / FNA prepared in the second step in a copper-containing saline solution through a potentiostatic method, and the ternary Z-typeheterojunction Cu2O / G / FNA photocatalyst is formed. According to the Z-type heterojunction Cu2O_graphene_alpha-Fe2O3 nanotube array photocatalyst material and preparation, the graphene layer serves asan electronic transmission mediator and is capable of effectively guiding photo-generated electrons on the FNA to migrate along the Z-type path and be subjected to quenching together with photo-generated holes in Cu2O, in this way, the spatial separation of the photo-generated electrons and hole pairs can be promoted, and the high oxidation reduction capacity of the composite is remained as well.The photocatalyst material not only has the good photocataltic performance, but also presents the good photocataltic stability.
Owner:JIANGXI UNIV OF TECH

Treponema pallidum total antibody biotin avidin enzyme-linked immune detection kit and preparation method thereof

The invention relates to a treponema pallidum total antibody biotin avidin enzyme-linked immune detection kit and a preparation method thereof, which relates to the syphilis detection. The kit comprises a concentrated washing liquid bottle, a negative and positive control bottle, a biotin mark antihuman recombination antigen bottle, a horseradish peroxidase mark avidin bottle, a TMB coloured solution bottle A, a coloured solution bottle B, a reaction stopping solution bottle, a micropore plate coated with recombinant antigen. The treponema pallidum has infectious standard strain Nichol strain and treponema pallidum non-infectious standard strain Reiter strain, by using a proteomics method, the treponema pallidum proteomics can be separated through dimensional electrophoresis, protein with strong immunogenicity can be identified by different patient or infectious animal serum, and then an antigen marker can be searched. The antigen marker is used for syphilis confirmation test, so that diagnosis sensitivity and specificity can be increased, a window stage is shortened. The treponema pallidum antibody can be sensitively detected and enables quantitative measurement, and has the advantages of cheap price, simple operation and accurate result.
Owner:ZHONGSHAN HOSPITAL XIAMEN UNIV

Plancton double-light path imaging apparatus

The invention provides a plankton double light path imaging device, comprising a digital camera, a microscope system, a triangular prism, two plane reflecting mirrors, a hollow lozenge observation pool, a light source and a supporting frame; the triangular prism and two plane reflecting mirrors are fixed on the supporting frame; the two plane reflecting mirrors are respectively arranged at the left side and the right side of the triangular prism; the hollow lozenge observation pool is fixed above the light source; two end surfaces of the triangular prism are plated by a reflecting film respectively; and the microscope system and the digital camera are connected with each other by data transmission wires. The plankton double light path imaging device can photograph a frame image which contains the conformation image information of two different sides of the plankton, and can quickly obtain the images of the plankton of different angles; simultaneously, the plankton double light path imaging device has the advantages of simple structure, convenient execution and the like.
Owner:OCEAN UNIV OF CHINA

Interactive science popularizing method based on basic user information

The invention discloses an interactive science popularizing method based on basic user information. The method can be achieved through a cloud server, a user terminal and an internet network jointly. The cloud server can optionally choose and distribute science popularizing knowledge from a science popularizing knowledge base of the cloud server according to the basic user information like geographic position and profession of the user terminal. The method can popularize science popularizing knowledge to users purposefully to better improve science knowledge popularizing effect. Meanwhile, the method improves the application effect of science popularizing knowledge, the interest of the users to obtain science popularizing information is better improved, and the implementation efficiency of science popularizing work is improved.
Owner:ANHUI COSWIT INFORMATION TECH

Nanometer level polishing solution and preparation method thereof

ActiveCN102311706BMeet the requirements of thinning grinding processEasy to polishPolishing compositions with abrasivesSilica gelSolvent
The invention discloses a nanometer level polishing solution and a preparation method thereof. The polishing solution is prepared from the following components in percentage by mass: 0.1 to 10 percent of monocrystal artificial diamond micro powder, 0.1 to 5 percent of aluminum oxide micro powder, 0.1 to 10 percent of silica gel, 0.3 to 10 percent of surfactant, 0.05 to 4 percent of dispersing agent, 0.5 to 1 percent of lubricant, 0.01 to 1 percent of chemical PH value regulator and 60 to 98.2 percent of solvent. The invention also discloses the preparation method for the nanometer level polishing solution. By the method, mixed serous fluid is prepared from the nanometer level diamond, the aluminum oxide and the silica gel, so an ideal polishing effect is achieved, the requirement of a process for thinning and grinding substrates (silicon carbide and sapphire) for GaN extension is met, and a technical means is provided for a polishing process for semiconductors.
Owner:INST OF MICROELECTRONICS CHINESE ACAD OF SCI

Interactive science popularization method based on mobile terminal

The invention discloses an interactive science popularization method based on a mobile terminal. According to the interactive science popularization method, a users and friends of the user obtain the same science knowledge examination paper from the position of a cloud server provided with a science knowledge database and a user information database through mobile terminals provided with APP, such as mobile phones; the user and the friends of the user utilize the examination paper to perform competition; the server records the examination scores of the user and the friends and performs ranking. When the competition is not performed, the user can learn science knowledge through the APP of the mobile phones. By means of the interactive science popularization method, the science knowledge information obtaining interest of the user is improved, and the promotion efficiency of science popularization work is improved.
Owner:ANHUI COSWIT INFORMATION TECH

Smart cable, smart cable preparation method and smart cable safety state detection method

The invention discloses a smart cable, a smart cable preparation method and a smart cable safety state detection method. The smart cable comprises a jacket and tie bars arranged in the jacket, whereinat least one tie bar in the jacket is replaced by a fiber enhanced optical fiber tie bar; the fiber enhanced optical fiber tie bar comprises a multi-core optical fiber and a fiber enhanced plastic rib wrapping the periphery of the multi-core optical fiber; the multi-core optical fiber is placed in the center of the rib in the length direction of the fiber plastic enhanced rib; the fiber enhancedoptical fiber tie bar is made through a pulling-extruding molding process; during machining and molding of the smart cable, at least one tie bar in the cable is replaced by the fiber enhanced opticalfiber tie bar; the cable is coated with the jacket, and an anchor gear is mounted to obtain the smart cable based on multi-core fiber sensing. The multi-core optical fiber is combined with the cable organically, so that the cable has the characteristics of high modulus, high durability, creep resistance and the like, and the stress change, bending change, temperature change and vibration change ofan in-service cable can be measured accurately in a distribution manner.
Owner:武汉地震工程研究院有限公司 +1

SCD file configuration method and device based on database and file fragment

The invention relates to an SCD file configuration method and device based on a database and a file fragment, and the method comprises the steps: enabling a data platform to be responsible for the data management, enabling the data platform to carry out the decoupling of an SCD file into a plurality of file fragments during the importing of the SCD file, extracting configuration information from the file fragments, storing the configuration information into a database, and building a relation mapping table of the file fragments and the database; selectively visiting the database or file fragments through an interface of the data platform according to the demands during the configuration of the SCD file, carrying out the corresponding configuration file, and updating the corresponding database or file fragment to the data platform after configuration; enabling the data platform to synchronize the database information to the corresponding file fragment according to the relation mapping table during exporting, carrying out the splicing of the synchronized file fragments, and exporting the SCD file. The method irons out a defect that information is liable to be lost when the SCD file is stored in the database, solves problems that the XML file transmission and processing efficiency is low, guarantees the data reliability, and improves the configuration efficiency.
Owner:XUJI GRP +2

Switching method between ground navigation and on-vehicle autonomous navigation in the approaching phase of Mars capture

ActiveCN109059935BMeet the needs of exploration and navigation tasksEfficient technical meansInstruments for comonautical navigationRadio navigationRemote sensing
The present invention provides a method for switching between ground navigation and on-device autonomous navigation in the Mars capture approach section, which includes the following steps: Step 1: When the Mars probe is approaching Mars, it is 10 million kilometers to 100,000 kilometers away from Mars in the cruising section , the optical navigation sensor is turned on; Step 2: Analyze the accuracy of radio navigation and optical navigation according to the measurement data of radio navigation and optical navigation; Step 3: Determine the absolute priority strategy of ground radio navigation / absolute priority strategy of on-device optical autonomous navigation / combined navigation information Navigation switching strategies such as fusion strategy; Step 4: When the distance to Mars is less than 100,000 kilometers, the optical navigation sensor is turned off and switched to ground radio navigation. The invention can meet the requirements of future Mars exploration and navigation tasks, and provides a good technical means for high-precision navigation of deep space probes.
Owner:SHANGHAI SATELLITE ENG INST

Science popularization system based on video interactive technology

The invention discloses a science popularization system based on the video interactive technology. The system comprises a camera and a microphone which are used for acquiring the voice and video information of a target person, and a computer provided with voice recognition and video analysis software, as well as a display and a loudspeaker which are used for outputting information. The computer utilizes the voice recognition and video analysis technology to analyze and convert the information into text information, matches the text information with a science popularization knowledge data base, and outputs corresponding science popularization information to the target person; the method can remarkably improve the interest of the target person to acquire science popularization information, and improves propulsive efficiency of science popularization work.
Owner:ANHUI COSWIT INFORMATION TECH

A kind of low-sodium salt caviar, its preparation method and compound salt substitute composition for production

The invention relates to the technical field of food processing, in particular to a low-sodium salt caviar, a preparation method thereof and a compound salt substitute composition for production. The compound salt substitute composition used for caviar preparation provided by the present invention comprises potassium chloride, potassium lactate, magnesium chloride and sodium chloride, wherein, the mass ratio of potassium lactate, potassium chloride and magnesium chloride is (15-25): (10‑20): (30‑40). The compound salt substitute composition provided by the present invention is used for the preparation of caviar, and while reducing the addition of sodium salt, it can well ensure the flavor and nutrition of caviar, inhibit the growth of microorganisms, and ensure the stability during the shelf life . The preparation method of caviar paste provided by the invention provides efficient technical means for deep processing and comprehensive utilization of caviar.
Owner:CHINA AGRI UNIV

Ore-slurry multi-potential detector

The invention relates to an ore-slurry multi-potential detector which is characterized by comprising an internal fixed tube of a detection electrode, an electrode base, a detection electrode, a fixed tube of a detection electrode reviving device and an electrode reviving device, wherein the electrode base is fixed in the lower part of the internal fixed tube of the detection electrode and the outside diameter of the electrode base is matched with the internal wall of the internal fixed tube of the detection electrode; the detection electrode is clamped in a clamping hole of the electrode base, and the detection wire of the detection electrode is led out by the internal fixed tube of the detection electrode; the fixed tube of the detection electrode reviving device is fixed above an ore-slurry tank by a fixed rotary device and coaxially sleeved outside the internal fixed tube of the detection electrode; a scraping cutter of the electrode reviving device rotates with the fixed tube of the detection electrode reviving device, and the upper end of the electrode reviving device is provided with a gap consistent to the shape of the detection head of the detection electrode. The invention can run by the real-time, synchronous, uniform and continuous dirtied-reviving functional states of single-point type abnormal-shape multiple electrodes, realizes the online detection of multiple-electrode potential and provides a technical means for the control floatation of electric chemistry and the similar online detection of the abnormal-shape multiple-electrode potential in high flowing speed, high specific weight and multi-phase complex media.
Owner:BEIJING GENERAL RES INST OF MINING & METALLURGY

Science popularization method based on video interactive system

The invention discloses a science popularization method based on a video interactive system. The technical proposal / scheme acquires voice and video information of a target person through a camera and a microphone; a computer utilizes the voice recognition and video analysis technology to analyze and convert the voice and video information into text information, matches the text information with a science popularization knowledge data base, and outputs corresponding science popularization information to the target person. The method can remarkably improve the interest of the target person to acquire science popularization information, and improves propulsive efficiency of science popularization work.
Owner:ANHUI COSWIT INFORMATION TECH

Method for evaluating quality of pinellia ternate and Pinellia yaoluopingensis based on organic acid

The invention discloses a method for evaluating quality of pinellia ternate and Pinellia yaoluopingensis based on organic acid, and belongs to the field of chemical component analysis of traditional Chinese medicines. The method comprises the following steps: using 75% ethanol for heating reflux extraction of total organic acid components of pinellia ternate and Pinellia yaoluopingensis, using ethyl acetate for repeated extraction, removing impurities, and obtaining an organic acid extracting solution; detecting the extracting solution by using UPLC-MS / MS, qualitatively analyzing the organic acid components by using the standard substance database, totally identifying 109 organic acid components, performing quantitative detection by using a multi-reaction detection mode MRM of triple quadrupole mass spectrometry, and screening 91 organic acid components with significant content difference in combination with a difference multiple greater than 2 times or less than 0.5 times. The invention provides an excellent technical means for evaluating the quality of pinellia ternate and Pinellia yaoluopingensis by using organic acid, and has important application value in quality control and variety identification of pinellia medicines.
Owner:HEFEI NORMAL UNIV

Method for predicting service life of lead storage battery

The invention discloses a method for predicting the service life of a lead storage battery, and belongs to the technical field of lead storage batteries. The method the following steps: (1) taking a plurality of to-be-detected lead storage batteries with the same model, carrying out charge-discharge cycles for a plurality of times, and performing sampling in the charge-discharge cycle process to detect the crystal size of beta-PbO2 in the positive plate of the lead storage battery, performing linear fitting on the charge-discharge cycle number of the sampled lead storage battery and the crystal size of beta-PbO2 in the positive plate to obtain a relationship between the charge-discharge cycle number and the crystal size of beta-PbO2; and (2) according to the relationship between the charge-discharge cycle number and the beta-PbO2 crystal size obtained in the step (1), calculating the corresponding charge-discharge cycle number when the crystal size of beta-PbO2 is obtained, and taking the charge-discharge cycle number as the service life of the lead storage battery of the model. The method is high in universality, the test period of the cycle life of the battery is shortened, and a good technical means is provided for research, development and production control.
Owner:TIANNENG BATTERY GROUP

Ore-slurry multi-potential detector

The invention relates to an ore-slurry multi-potential detector which is characterized by comprising an internal fixed tube of a detection electrode, an electrode base, a detection electrode, a fixed tube of a detection electrode reviving device and an electrode reviving device, wherein the electrode base is fixed in the lower part of the internal fixed tube of the detection electrode and the outside diameter of the electrode base is matched with the internal wall of the internal fixed tube of the detection electrode; the detection electrode is clamped in a clamping hole of the electrode base, and the detection wire of the detection electrode is led out by the internal fixed tube of the detection electrode; the fixed tube of the detection electrode reviving device is fixed above an ore-slurry tank by a fixed rotary device and coaxially sleeved outside the internal fixed tube of the detection electrode; a scraping cutter of the electrode reviving device rotates with the fixed tube of the detection electrode reviving device, and the upper end of the electrode reviving device is provided with a gap consistent to the shape of the detection head of the detection electrode. The invention can run by the real-time, synchronous, uniform and continuous dirtied-reviving functional states of single-point type abnormal-shape multiple electrodes, realizes the online detection of multiple-electrode potential and provides a technical means for the control floatation of electric chemistry and the similar online detection of the abnormal-shape multiple-electrode potential in high flowing speed, high specific weight and multi-phase complex media.
Owner:BEIJING GENERAL RES INST OF MINING & METALLURGY

Colorimetric reagent for detecting urotropin

The invention relates to a colorimetric reagent for detecting urotropin. The reagent is prepared from solid blue B salt and an organic solvent. The preparation method of the colorimetric reagent is simple, safe and mild, quick, naked-eye, specific, high-sensitivity and high-stability recognition can be carried out on urotropin, the response time is shorter than 2 s, the expiration date of the reagent is as long as half a year, the selectivity is very high, and the detection limit of a solution is 9 mu M. The reagent provides a very effective technical means for the detection of the raw material urotropine of the non-standard explosive, and provides an excellent fundamental research for the field of safety detection of the non-standard explosive.
Owner:XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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