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169 results about "Environment analysis" patented technology

The environmental analysis assesses the business external environment to find out threat and opportunities. After evaluation, the decision makers develop strategies that respond to the environment. The business market is very dynamic; everyone tries to develop ideas and products which compete in...

Visual analyzing and predicting method based on a virtual geological model

InactiveCN101515372ARealize the integrated rendering of time and spaceIncrease spaceSpecial data processing applications3D-image renderingSpatial analysisMulti dimensional
A visual analyzing and predicting method based on a virtual geological model is finished by depending on an interactive visual tool. The method mainly comprises steps of searching a multi-dimensional geological data model from a database and a file system; arranging or resetting a virtual geological scene by setting or regulating corresponding parameters and models; regulating coordinate, scale, data format and the like, of the geological model; sending results of visual calculating, analyzing, predicting and searching into a dual-display cache region; and integrally displaying geological data in a visual platform at real time. The method meets requirements of earth science application, enhances representability of geological data, improves comprehension and application environment of geological data, converts logical thinking of geologists into a trial ground having an imagery thinking of time and space in a virtual environment, helps strengthen deep recognition to complex geological phenomena, uncovers deep information and internal relation in geological data, digs out and extract knowledge unable to be obtained in a traditional mode, improves utilization rate and geospatial analytics of information, and provides a brand-new method for geologists to observe, explain, analyze and imitate geological phenomena in a three-dimensional space, predict and know geospatial distribution of geological structure in a studied area through known data, and obtain mine position, mine reserves and other important information. Furthermore, the human-computer interactive tool is simple and easy to learn to operate, saves cost, reduces blindness in application, reduces risk, conducts and makes decision for production and environment analysis and has significant economic and social benefits.
Owner:BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY +1

Sandstone uranium ore comprehensive evaluation technology method

The invention belongs to the technical field of uranium ore geological research, and particularly discloses a sandstone uranium ore comprehensive evaluation technology method. The method comprises thefollowing steps of 1, determining a uranium ore-forming favorable geological background and an ore-forming environment; 2, determining depositional subfacies or microfacies and spatial distribution of an ore-finding target layer; 3, identifying and locating a uranium ore-forming favorable sand body; 4, comprehensively extracting ore-forming favorable information; and 5, delineating an ore-formingfavorable region, and comprehensively evaluating ore-forming potential. According to the method, the steps are irreversibly carried out in sequence, and the uranium ore-forming potential of a regioncan be efficiently, quickly and objectively; uranium geological background and ore-forming environment analysis is a principal factor, wherein uranium source condition analysis is a top priority, andif the region does not have a uranium source condition, uranium ore does not exist no matter how good other conditions are; and by analyzing the ore-forming geological background and the ore-forming environment, favorable ore-forming geological conditions are determined.
Owner:BEIJING RES INST OF URANIUM GEOLOGY

Intelligent networked-vehicle-mounted terminal platform based on tight "cloud-end" coupling

InactiveCN109709593ARealize coordinated regulationGuaranteed updateSatellite radio beaconingCouplingNetwork communication
The invention discloses an intelligent networked-vehicle-mounted terminal platform based on tight "cloud-end" coupling, wherein the platform carries out interaction with a cloud platform. A high-precision positioning unit is used for realizing all-weather high-precision positioning of vehicles in a GNSS positioning, network positioning or autonomous positioning mode. A map matching recognition unit invokes high-precision map information of a current vehicle area of the cloud platform by combining the positioning information of a vehicle and thus forms a dynamic high-precision map. A driving environment sensing unit is used for sensing the vehicle body and environmental data by using the sensor and the network communication technology. A vehicle-road coordination control unit carries out multi-source data fusion based on integration of data from the driving environment sensing unit, the map matching recognition unit and the high-precision positioning unit, carries out the driving environment analysis, makes a driving decision by combining a cloud control command, and reporting the decision to the cloud platform. According to the invention, the deep fusion interaction between the vehicle and the external environment is realized by employing the tight "cloud-end" coupling mode.
Owner:CHINA INTELLIGENT & CONNECTED VEHICLES (BEIJING) RES INST CO LTD +1

Method of automatically generating fingerprint database for an indoor wireless location

The present invention relates to a method of automatically generating a fingerprint database for indoor wireless location. For this purpose, the present invention provides a method of generating a fingerprint database that determines a method of calculating the strength of signals transmitted from a plurality of access points, calculates the strength of signals at nodes of a plurality of vertical and horizontal grids set in an indoor space, and generates a database table by using the location information about the nodes and the calculated strength of the signals. Further, the present invention provides an environment analysis tool including a communication module that performs communication between at least one of the access points and a receiving terminal, an environment analysis module that calculates the strength of a signal at a specific location by using a method of calculating strength and generates a fingerprint database table, and a fingerprint database that stores the fingerprint database table. According to the present invention, it is possible to reduce time and manpower required to build a fingerprint database, and to easily build a new fingerprint database even though an indoor structure is changed.
Owner:ELECTRONICS & TELECOMM RES INST

Personal communication device with hearing support and method for providing the same

The present invention is related to a personal communication device arranged for providing hearing support. The personal communication device comprises an input for receiving an audio signal, programmable processing means and an output for outputting the processed signal. The programmable processing means is arranged for performing a filtering operation on a digital version of the audio signal in a first signal path based on parameter settings and for providing control logic for determining the parameter settings based on information on user preferences, on audiological information and on information on the listening situation, in which the personal communication device is used, obtained via sound environment analysis of the received audio signal and / or via sensing means of the personal communication device, so that the programmable processing means is operable as a hearing loss compensation module arranged for outputting a hearing loss compensated signal. The programmable processing means further has a second signal path in parallel with the first signal path, said second signal path comprising a module for transfer function calculation arranged for receiving the digital version of the audio signal and the parameter settings and for determining the filter coefficients of the filtering means based on the parameter settings and the digital version of the audio signal.
Owner:JACOTI

Moving Resources In a Computing Environment Having Multiple Logically-Partitioned Computer Systems

As needs of a computer system grow, further logically-partitioned computer systems may be added to allow for more partitions to be created. When new partitions are added, or when an entire computing environment analysis is commenced, it may be discovered that better system efficiency may be had if the resources or computational work in a first partition in a first computer is moved to a second partition in the first computer. It is also may be determined that better system efficiency may be had if the resources or computational work in the first partition in the first computer is moved to a third partition in a second computer.
Owner:IBM CORP

Application for analyzing micromolecules with irradiating nanometer carbon spots serving as matrix assisted laser desorption ionization (MALDI) matrix

InactiveCN102645481AOvercoming the inability to efficiently analyze small molecule samplesReduce processing requirementsMaterial analysis by electric/magnetic meansSpectroscopyBiomarker discovery
The invention discloses application for analyzing micromolecules with irradiating nanometer carbon spots serving as a matrix assisted laser desorption ionization (MALDI) matrix. The carbon spots serve as an analysis method of the MALDI matrix and are suitable to mass spectrum analysis for the micromolecules with the m / z between 150-1000. Suitable molecule types comprise amino acid, polypeptide, beta-exhilarant, fatty acid, polymer and the like. When the method is used for detecting the molecule with the m / z between 150-1000, background peaks hardly exist to produce background interference. The method can be effectively used in the fields of organic and biomass spectrometry, spectrometry imaging, protein spectroscopy, metabonomics, biomarker discovery, environment analysis and the like.
Owner:INST OF CHEM CHINESE ACAD OF SCI

Method for fast early warning against water body water bloom risk

The invention discloses a method for fast early warning against a water body water bloom risk. The method comprises a first step of constructing an alga biomass prediction model based on environment analysis results; a second step of adopting the alga biomass prediction model to obtain an alga biomass prediction value; a third step of determining an alga biomass water bloom risk threshold of advantageous algae; and a fourth step of comparing the alga biomass prediction value with the alga biomass water bloom risk threshold and judging whether water bloom early warning is sent out. The method is suitable for water environmental quality monitoring, is simple, convenient and rapid, can achieve fast early warning of the water bloom risk and can provide timely and effective technical support for water environment emergency management.
Owner:珞珈浩景数字科技(湖北)有限公司

Online-Content-Filtering Method and Device

The invention relates to an online-content-filtering method and device, including the use of a device, a case external to or a card internal to the computer, which is disposed between the computer and a computer network providing access to the online content. The device receives the content from the network. The method includes: a content analysis step; a step consisting of searching the environment of the content via the network; an environment analysis step; a filtering decision step which is performed as a function of a set of decision rules that is dependent on the results of the content and environment analysis steps; and a transmission step in which the content may or may not be transmitted to the computer depending on the result of the filtering decision step. Preferably, the pages to which the hypertext links of the content are directed are processed during the environment analysis step.
Owner:FRAISSE THOMAS +1

BIM technology and simulation technology-based green building design method

The invention discloses a BIM technology and simulation technology-based green building design method. The method comprises the following steps of: analyzing a current-situation site by utilizing simulation software at the beginning of a building scheme, wherein the analysis comprises earthwork analysis and overland runoff analysis; preliminarily deciding a designed elevation of the site; establishing a project site in Revit according to the designed elevation; carrying out wind and light environment analysis by combining the simulation software; carrying out general drawing design on the basis of the wind and light environment analysis so as to propose a plurality of schemes; establishing a plurality of mass model in the Revit; carrying out wind and light environment analysis on different layouts by combining the simulation software, so as to help comparison and selection to optimize a general drawing layout; finally obtaining a most reasonable general drawing and furthermore deepening the schemes; and carrying out wind, light and heat environment analysis on indoor space by using above method, so as to carry out comparison and selection to optimize a final scheme. According to the method disclosed by the invention, the correctness of an analysis model is ensured, and the reliability of an analysis result is ensured; and a BIM technology is fused with simulation and analysis, so that a design and analysis optimized feedback mechanism is formed and then the correctness and efficiency of green building design and simulation are improved.
Owner:TIANJIN ARCHITECTURE DESIGN INST

Environment analysis system and method for indoor wireless location

An environment analysis system for indoor wireless location by using locations of a plurality of access points (AP) includes, a first environment analysis tool (10) for receiving indoor environment information for indoor wireless location, performing a simulation for calculating location accuracies, performing a simulation for relocating and / or additionally installing the access points (AP), and displaying results of the simulation; and a second environment analysis tool (20) for receiving wireless communications signals from the access points (AP), calculating distances from the second environment analysis tool (20) to the access points (AP), calculating a location of the second environment analysis tool (20), calculating errors in the distances and in the location calculated, and providing the errors calculated to the first environment analysis tool (10). The first environment analysis tool (10) corrects errors in the simulations performed thereby by using the errors received from the second environment analysis tool (20), and then repeats the simulations and the displaying process.
Owner:ELECTRONICS & TELECOMM RES INST

Method for detecting Clenbuterol by applying competitive SERS (Surface-Enhanced Raman Scattering) and application thereof

The invention discloses a method for detecting the Clenbuterol by applying competitive SERS (Surface-Enhanced Raman Scattering) and application thereof, which belong to the technical field of the detection of hormonal micro-molecule substances. In the method disclosed by the invention, a sample to be detected and a SERS nano-probe combined with a Clenbuterol antibody are sequentially dropped on the surface of a substrate with a fixed antigen conjugate; the antigen in the sample to be detected and the antigen in the substrate with the antigen conjugate have an antibody competition reaction with the antibody combined with the SERS nano-probe; after the reaction is finished, the SERS nano-probe which is marked on the substrate with the antigen conjugate is subjected to signal collection through a Raman spectroscope, and data are processed; and finally the quantitative detection is carried out on the Clenbuterol according to the amplitude and standard curve of detection signals. The method disclosed by the invention is convenient to operate, has the advantages of high sensitivity, wide detection interval and high specificity and also has wide application prospects in the fields of food safety, analeptic detection, environment analysis and the like.
Owner:SOUTH CHINA NORMAL UNIVERSITY

Silica gel absorbent for absorbing heavy metal ions and preparation method thereof

The invention relates to a silica gel absorbent for absorbing heavy metal ions and a preparation method thereof, and discloses a preparation method of a N,N-di(phosphinemethyl) bis-substituted aminodithioformic acid functionalized silica gel absorbent and the adsorption effect of the absorbent on heavy metal ions such as cadmium, copper, nickel, lead, and the like. The preparation of the adsorbent comprises the following steps: reacting carbon disulfide with amino methane phosphonic acid, grafting the reaction products to the surface modified silica gel, and finally carrying out acidification. The synthesis conditions of the method are mild and efficient. The provided absorbent has a large adsorption amount and good selectivity on heavy metal ions such as mercury, copper, nickel, lead, and the like. Moreover, the metals can be recycled through a proper treatment, and the resources are regenerated and circularly used. The silica gel absorbent can be used to process and recycle wastewater containing heavy metals, can also be used to separate, enrich, and remove heavy metals in medicinal materials and environment analysis, and has a wide application prospect. The provided preparation method and prepared adsorbent will not generate secondary pollution to the environment.
Owner:湖南超亟化学科技有限公司 +1

Acrylic acid pyridine chelating resin as well as preparation method and application thereof

The invention discloses an acrylic acid pyridine chelating resin as well as a preparation method and application thereof, and belongs to the field of modified resin synthesis. A basic structure unit of the resin is as shown in the specification, wherein x represents polyamines with different chain lengths; resin microspheres are faint yellow; the particle sizes are 0.15-1.20mm; and the functional group content is 1.08-3.01mmol / g. The chelating resin disclosed by the invention is wide in preparation material source, low in cost, and simple in operation step. Due to the hydrophilcity of a polyacrylic resin skeleton, the adsorption rate on heavy metal is high. In addition, due to high modification quantity of the resin functional group, the adsorption quantity on heavy metal is large. The acrylic acid pyridine chelating resin disclosed by the invention can be applied to the fields such as mining and metallurgy production, mother liquid purification, removal of heavy metal in a high-acid and high-salt complicated system and separation and pre-enrichment of the heavy metal in environment analysis; the technical problems of small adsorption amount, low adsorption rate, large in required resin amount in engineering, long operation time and the like when the heavy metal is selectively adsorbed are solved; and the economic benefits and the environment benefits are significant.
Owner:NANJING UNIV

Surface enhanced Raman scattering substrate, preparation method and applications thereof

The invention provides a surface enhanced Raman scattering substrate, which comprises a polylactic acid electrostatic spin film and nano metal particles on the surface or in the inner of the polylactic acid electrostatic spin film, wherein the nano metal particles carry positive charges. The surface enhanced Raman scattering substrate has the advantages of high enhancing ability, good repeatability, long storage period, and capability of enriching articles to be detected. The invention also provides a preparation method of the surface enhanced Raman scattering substrate. The preparation method comprises the following steps: (1) dissolving polylactic acid into an organic solvent to obtain a spinning liquid, and using the spinning liquid to carry out electrostatic spinning to obtain a polylactic acid electrostatic spin film; (2) arranging nano metal particles on the surface and in the inner of the obtained polylactic acid electrostatic spin film through a spotting mode so as to obtain the surface enhanced Raman scattering substrate. The preparation method is simple and is suitable for massive production. The prepared surface enhanced Raman scattering substrate can be applied to food analysis, environment analysis, etc.
Owner:SHENZHEN INST OF ADVANCED TECH

Mixed sedimentary rock classification and naming method based on content of three-end-member minerals

The invention discloses a mixed sedimentary rock classification and naming method based on content of three-end-member minerals. The upper limit value of the content of exogenous fragments in mixed sedimentary rock is determined according to effective productivity; according to rock components, a three-end-member classification scheme is determined; naming is conducted, wherein according to the contents of the rock components, basic names are determined, and then cement and special structures or diagenesis serve as modifiers to participate in naming; according to a specific naming rule, the basic names are determined respectively according to the mixed sedimentary rock with different main components, when the content of auxiliary minerals is 25-50%, 'material' serves as the additional modifier, and when the content of the auxiliary minerals is smaller than 25%, 'containing' serves as the additional modifier. In the method, the upper limit value of the content of exogenous fragment particles is determined according to effective productivity, the mixed sedimentary rock is named by means of the three end members including exogenous fragments, endogenous fragments and a carbonate interstitial material, a scientific classification system framework suitable for actual production application is constructed on the basis of taking sedimentary causes into consideration, and basic data can be provided for mixed sedimentary environment analysis.
Owner:CHINA NAT OFFSHORE OIL CORP +1

Method and apparatus for analyzing exploit code in nonexecutable file using virtual environment

Provided is a method and apparatus for analyzing an exploit code included in a nonexecutable file using a target program with vulnerability in a virtual environment. The method includes the steps of: loading a nonexecutable file including the exploit code by a target program, the target program being executed in a virtual environment and includes vulnerability; analyzing a register value of the target program and determining if the register value of the target program indicates a normal code region; storing log information on operation of the target program when the register value indicates a region other than the normal code region; and extracting and analyzing the exploit code included in the nonexecutable file based on the stored log information. In this method, the exploit code is analyzed in the virtual environment, thereby preventing damage caused by execution of the exploit code.
Owner:ELECTRONICS & TELECOMM RES INST

Method for analyzing contents of three different occurrence forms of organic pollutants in soil

ActiveCN105548389ASolve the problem that the degree of pollution is not scientific enoughComponent separationTenaxPretreatment method
The invention relates to a soil contaminant detection method in the field of environment analysis, specifically to a method for analyzing the contents of three different occurrence forms of organic pollutants in soil. Directed at the problem that conventional methods which usually evaluate the contamination degree of soil on the basis of the total concentration of organic pollutants is not scientific enough, the method provided by the invention employs a pretreatment method consisting of Tenax resin adsorption, extraction with an organic solvent, alkaline and thermal hydrolysis and re-extraction with the organic solvent for graded extraction and cooperatively uses gas chromatography, combined gas chromatography and mass spectrometry, liquid chromatography and liquid chromatographic-gas chromatographic apparatus detection and analysis technology, so the contents of three different occurrence forms, including a soluble form, an adsorption form and a bound form, of organic pollutants in soil are detected. The method provided by the invention can accurately and quantitatively analyze the contents of the three different occurrence forms of organic pollutants in soil and has good application value in soil contamination risk evaluation and pollution abatement and restoration.
Owner:NANJING UNIV

Fully-mechanized mining equipment digital mock-up analysis system and method based on geographic information system

The present invention discloses a fully-mechanized mining equipment digital mock-up analysis system based on a geographic information system. The system comprises a geological database, a mining scheme constructing module, a geological environment analysis module, a digital mock-up analysis module and an equipment performance evaluation module. The present invention also discloses an analysis method using the system. The method comprises: establishing a mining area geographic information system according to the geological database; converting each coal seam mining scheme into a propulsion path and coordinate data of a fully-mechanized mining equipment in a geological environment, converting a cutting process scheme into an operating parameter of the fully-mechanized mining equipment, and associating the operating parameter of the fully-mechanized mining equipment with the propulsion path and coordinates; and extracting partial geographic environment information and the associated equipment operating parameter along the propulsion path, performing operation simulation and performance analysis by converting the partial geographic environment information and the associated equipment operating parameter into load and boundary conditions that are applied to a digital three-dimensional model of the fully-mechanized mining equipment, and performing comprehensive performance evaluation. According to the digital mock-up analysis system and method based on the geographic information system provided by the present invention, a comprehensive, reliable and effective analysis can be performed on the performance of the fully-mechanized mining equipment according to a complex geological environment; and a performance evaluation and warning can be performed on the fully-mechanized mining equipment.
Owner:CHINA UNIV OF MINING & TECH

Solid-phase microextraction coating based on metalloporphyrin microporous polymer, and preparation and application thereof

The invention relates to a solid-phase microextraction coating based on a metalloporphyrin microporous polymer, and a preparation method and an application thereof. The preparation method for the solid-phase microextraction coating based on the metalloporphyrin microporous polymer comprises the following steps: preparing a metalloporphyrin suspension, pretreating solid-phase microextraction fiber, and coating the metalloporphyrin suspension on the surface of the solid-phase microextraction fiber so as to obtain the solid-phase microextraction coating based on the metalloporphyrin microporous polymer, wherein the metalloporphyrin suspension is prepared through the following steps: S11: preparation of a porphyrin conjugated microporous organic polymer under the condition of microwave synthesis; S12: synthesis of a metalloporphyrin conjugated microporous organic polymer through an action of the porphyrin conjugated microporous organic polymer and metal salt; and S13: preparation of the metalloporphyrin suspension from the metalloporphyrin conjugated microporous organic polymer. The coating prepared by using the method provided by the invention has the advantages of good thermal stability, strong enrichment capacity, etc., can be applied to extraction heads for solid-phase microextraction, and has an effective application in the fields of food analysis, environment analysis, etc.
Owner:SUN YAT SEN UNIV

Audio signal processing apparatus, audio signal processing method and a program

An audio signal processing apparatus which includes an input analysis unit which analyses the characteristics of an input signal and generates an input sound feature value,an environment analysis unit which analyses the characteristics of the environmental sound and generates an environmental sound feature value,a mapping control information generation unit which generates mapping control information as control information of amplitude conversion processing to the input signal by application of the input sound feature value and the environmental sound feature value,and a mapping process unit which performs amplitude conversion on the input signal based on a linear or non-linear mapping function determined according to the mapping control information and generates an output signal.
Owner:SONY CORP

Comprehensive evaluation method for single well oil gas geology

The invention relates to a comprehensive evaluation method for single well petroleum geology. The method comprises the following steps: 1, source rock evaluation; 2, reservoir stratum evaluation; 3, overlying stratum evaluation; 4, entrapment evaluation; 5, oil gas source comparison. According to the comprehensive evaluation method for the single well oil gas geology, the sequence stratigraphy theory serves as guidance, systematic observation of rock debris and the core and sample analysis serve as the bases, physical geography materials such as logging are combined, system partitioned strata are compared with adjoining wells, target stratum series sedimentary facies markers, sedimentary facies types and characteristics, stratigraphic sequence characteristics and sedimentary cycles, structures and structural characteristics are researched, sedimentary facies, cored interval sedimentary microfacies and comprehensive logging interval sedimentary microfacies are partitioned, sedimentary environment analysis is conducted, a single well facies model and whole well sedimentary facies sections are established, the mutual relations between the sedimentary facies and a crude stratum, a reservoir stratum and an overlying stratum are defined, and outlining basis is provided for conducting single well oil gas geology basic element analysis.
Owner:SOUTHWEST PETROLEUM UNIV

Efficient liquid chromatogram-atomic fluorescence spectrum method for measuring mercury forms

The invention discloses an efficient liquid chromatogram-atomic fluorescence spectrum method for measuring mercury forms, and belongs to environment analysis technology. The efficient liquid chromatogram-flame atomization-atomic fluorescence spectrum-based method for measuring the mercury forms of methyl mercury, bivalent inorganic mercury, ethyl mercury and the like comprises that: after multiple mercury forms are separated by efficient liquid chromatogram, the mercury is mixed with acid and hydroboron in turn, the organic mercury is converted into hydrogenated organic mercury, the hydrogenated organic mercury is subjected to gas-liquid separation, mercury atoms are further converted in the argon-hydrogen flame, and the mercury is measured by adopting an atomic fluorescence spectroscope. A device for implementing the method comprises a liquid chromatogram pump, a chromatogram column, a peristaltic pump, a three-way valve, a gas-liquid separator, a flame atomizer, the atomic fluorescence spectroscope and a polytetrafluoroethylene tube. The method does not need to use strong oxidant such as potassium sulfate and the like after column treatment or use degradation equipment of ultraviolet, microwave and the like, has the advantages of simple instruments, convenience for operation and environment friendliness, and is suitable for form analysis of the mercury in environments and biological samples.
Owner:RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI

Heavy metal mercury ion detection method

The invention relates to an analysis method for selectively detecting mercury ions by means of magnetic materials and belongs to the field of environment analysis. Fe3O4 / SiO2 / Au magnetic particles are synthesized, and selective enrichment and detection of mercury ions are achieved by means of the method that the surfaces of the magnetic particles are modified with Raman markers. A series of experiments prove that a preparation method and the analysis method which are adopted are easy to operate, and selective detection of the mercury ions can be achieved.
Owner:RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI

Comprehensive urban climate environment assessment method integrated with multiple-source remote sensing and climate environment information

The invention discloses a comprehensive spaced and visualized urban climate environment analysis and assessment research method under multiple seasons and environmental elements, and belongs to the research of the urban climate environment application field. According to the analysis and assessment method, complex topography effects and air-sea-land interaction are fully considered, four-season urban climate environment and urban planning information are integrated, urban climate environment problems at present and under planning backgrounds are shown mainly by two-dimensional graphics, and planning suggestions for the urban climate environment problems at various seasons are proposed, so that urban thermal pollution and air pollution problems can be effectively relieved. The urban climate environment assessment and analysis method is comprehensive, real-time, easy to acquire and use, and relevant achievements of the method can be regarded as the important decision-making basis of the urban planning, urban climate and ecological human habitat environment construction field.
Owner:INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI +1

Concentration detection device and concentration detection method for gas-phase organic matter based on light-catalyzed reaction

The invention relates to the technical fields of nanometer materials, photocatalytic materials, environment analysis and sensing, and particularly relates to a concentration detection device and a concentration detection method for a gas-phase organic matter based on light-catalyzed reaction. The detection device comprises an ultraviolet light source, a nano TiO2 film based on a conductive metal substrate, and a signal collection system, wherein the nano TiO2 film is arranged on a light path of the ultraviolet light source and used for loading a gas-phase organic matter to be detected; the signal collection system is used for collecting potential or current change data between the nano TiO2 film and the conducive metal substrate in the process of photocatalytic degradation of the gas-phase organic matter to be detected, so as to detect the concentration of the gas-phase organic matter to be detected. The concentration detection device can rapidly detect aiming at gas-phase organic pollutants in refrigerators, automobiles and home environments, and is high in sensitivity and high in response speed. A signal is from electric signal change generated in the process of photocatalytic oxidation of the organic matter by the nano TiO2 film, so that no chemical reagent is needed; the detection device is friendly to environment, simple in structure, and the sensor is low in manufacturing and detection costs.
Owner:HEFEI UNIV OF TECH

Method for preparing high-stability polymer coated nano silver cluster

The invention discloses a method for preparing a high-stability polymer coated a nano silver cluster, and is characterized by comprising the following steps of: (1) synthesizing a silane-Ag complex, namely dissolving 0.0370 to 0.0986 gram of silver nitrate in 10 to 30 milliliters of absolute methanol, adding 200 to 600 mu litters of silane, and stirring in a dark place for 1 to 4 hours; (2) synthesizing a polymer-modified nano silver cluster, namely dissolving 0.0363 to 0.0968 gram of polymer in 1 to 20 milliliters of water, adding solution formed by the step (1), stirring for 1 to 30 minutes; and (3) adding 10 to 100 mu liters of absolute formaldehyde, stirring in a dark place for 3 to 6 hours, obtaining a yellow solution, settling and filtering to obtain the polymer-modified nano silver cluster. The polymer-modified nano silver cluster synthesized by the method has the advantages of low price, stable performance, no toxicity and the like. The cluster has very high practical value and has a great prospect in environment analysis, biochemical analysis, food safety and other fields.
Owner:HUBEI FORBON TECH +1

Method for separating/gathering trace ciprofloxacin in food

The invention relates to a method for separating / gathering trace ciprofloxacin in food, belonging to the field of environment analysis technologies. The method is a novel separation technology in which thermo-sensitive polymer EOPO (ethylene oxide and propylene oxide copolymer) and salt are mixed, the property that the affinity of a surface active agent and water is changed under a temperature change condition is utilized, and an aqueous two-phase system is formed with the combination of inorganic salt to perform extraction separation. The novel separation system has the advantage of aqueous two-phase extraction, and can realize secondary extraction due to the temperature separation property of the thermo-sensitive polymer, so that the extraction efficiency is higher than that of one-time extraction, and besides, the recovery of phase components enables the experiment cost to be reduced.
Owner:JIANGSU UNIV

Method and apparatus for determining sound source distance

ActiveCN107507625ASolve the problem of inaccurate distance measurementLow costSpeech analysisThird partyFrequency spectrum
The invention discloses a method and apparatus for determining a sound source distance. The method comprises: a voice signal of a user is received; a spectrum feature of the voice signal is extracted; the spectrum feature is inputted into a pre-constructed voice separation model to obtain a reverberation impulse function coefficient feature; the spectrum feature is inputted into a pre-constructed voice environment analysis model to obtain voice environment information of the voice signal; and on the basis of the reverberation impulse function coefficient feature, the voice environment information, and a pre-constructed sound source distance determination model, information of a distance between a user voice and a microphone is obtained. Therefore, the accuracy of the distance measurement can be improved without a third-party sensor.
Owner:ANHUI IFLYTEK INTELLIGENT SYST
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