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89 results about "Source determination" patented technology

Information source determination method and information source determination device

The embodiment of the invention discloses an information source determination method comprising the steps that the time period to be analyzed is determined; the pollutant concentration information ofthe target monitoring point in the time period to be analyzed is acquired; the regional background concentration of each sampling moment obtained through the interpolation method within the time period to be analyzed is acquired; the local emission contribution observed by the target monitoring point is determined according to the pollutant concentration information and the difference value of theregional background concentration of each sampling moment within the time period to be analyzed; the two-dimensional wind vector information of the time period to be analyzed is acquired; and the location of the pollutant is determined according to the regional background concentration of each sampling moment within the time period to be analyzed, the local emission contribution and the two-dimensional wind vector information. The local emission concentration contribution and the regional transmission concentration contribution are combined with the wind speed, the wind direction and other parameters and then the corresponding vector diagram is drawn so that the real emission source and the location of the emission source can be analyzed by the method.
Owner:深圳市卡普瑞环境科技有限公司

Method for tracing pollutants by combining water quality parameters with three-dimensional fluorescence spectrum

The invention provides a method for tracing pollutants by combining water quality parameters with a three-dimensional fluorescence spectrum. The method comprises the following steps of water quality testing, fluorescence detection, pollution source type identification, and pollution source determination. The pollutant tracing method is combined with PMF model factor analysis results and the fluorescence intensity ratio of characteristic fluorescent components to quickly judge whether a water body environment is affected by human activities or not and judge the type of a water body pollution source at the same time; in addition, targeted screening of pollution sources is carried out by combining with relevant regional water quality monitoring distribution points with hydrological parameters; and finally, main pollution sources of a water body are defined by comparing test results of the corresponding pollution sources. The method has the advantages of simple operation, high accuracy, good reproducibility and the like; typical pollution sources in the water body environment can be quickly and effectively identified and theoretical guidance is provided for control and treatment of related pollution.
Owner:EAST CHINA UNIV OF SCI & TECH

Oil-gas source determination method and device

ActiveCN106970198AResolve technical issues identified as inaccurateAccurately determineComponent separationFuel testingKerogenSource determination
An embodiment of the invention provides an oil-gas source determination method and device. The method includes the steps: acquiring hydrocarbon source rock samples and oil gas samples of an oil-gas field; acquiring kerogen according to the hydrocarbon source rock samples; dividing the kerogen into a plurality of groups, and performing gold tube heat simulation experiments on the kerogen according to different preset temperatures to obtain a plurality of groups of experimental result substrates; building a plurality of groups of geochemical characteristics of hydrocarbon source rock generated crude oil and the hydrocarbon source rock generated natural gas under different maturity degrees according to the experimental result substrates; acquiring geochemical parameter data of the oil gas samples; determining whether the hydrocarbon source rocks are oil-gas sources or not according to the geochemical characteristics of the hydrocarbon source rock generated crude oil and the hydrocarbon source rock generated natural gas under different maturity degrees and the geochemical parameter data of the oil gas samples. According to the scheme, the geochemical characteristics of the hydrocarbon source rocks under the different maturity degrees are built, and the method solves the technical problem of inaccurate identification of high-maturity oil-gas sources in an existing method.
Owner:PETROCHINA CO LTD

Apparatus and method for determining entity attribute values

The invention relates to an apparatus and a method for determining entity attribute values. The apparatus comprises a data source determination unit, a data source confidence degree calculation unit, an attribute value confidence degree calculation unit and an attribute value determination unit, wherein the data source determination unit is configured to perform retrieval in the internet or a database by taking a name or an another name of an entity as a retrieval word and determine data sources related to the entity, and the entity is one entity in a given entity set; the data source confidence degree calculation unit is configured to calculate a confidence degree of the data source according to various records contained in the data source and the similarity of all entities in the given entity set for each obtained data source; the attribute value confidence degree calculation unit is configured to calculate a confidence degree of each attribute value of the entity according to the confidence degree of the data source; and the attribute value determination unit is configured to determine the attribute value of the entity according to the confidence degree of each attribute value. According to the apparatus and method, a most trusted attribute value is found according to the entity attributes and the attribute values in a plurality of the data sources, and the entity attributes are complemented to obtain richer entity information.
Owner:FUJITSU LTD

Trouble analysis apparatus

A trouble analysis apparatus is provided which includes: a system topology storing portion; an error detection information receiving portion which collects error detection information; and a trouble source determination portion which, based on both the error detection information collected by the error detection information receiving portion and system topology information stored in the system topology information storing portion, determines a trouble source functional element that is presumed as a functional element which is a source of a system trouble. Links included in the system topology information have information indicating spreading directions of error operations between the functional elements when trouble occurs. When the trouble source detection portion receives the error detection information with regard to multiple error functional elements, the trouble source determination portion sequentially selects one of the multiple error functional elements. The trouble source detection portion determines whether or not directions from the selected error functional element to other error functional elements conform to the spreading directions included in the system topology information. The trouble source determination portion determines the selected error functional element as the trouble source functional element when the spreading directions are conformable.
Owner:NEC CORP

Abnormal source determination method, device and equipment and computer readable storage medium

The embodiment of the invention provides an abnormal source determination method, device and equipment and a computer readable storage medium. The abnormal source determination method comprises the steps of obtaining service data in a preset time period to generate a time sequence according to a preset time interval, wherein the time sequence comprises a plurality of sub-time sequences with different dimensions; determining whether the time sequence is abnormal or not by using time sequence prediction data predicted according to the time interval to which the time sequence belongs; respectively determining the similarity between each of the plurality of sub-time sequences and the time sequence according to a determination result that the time sequence is abnormal; according to the similarity between each of the plurality of sub-time sequences determined respectively and the time sequence, at least one of the plurality of sub-time sequences is determined to be a source of abnormity of the time sequence, the abnormity can be described from the perspective of time sequence change instead of being considered from the absolute value of the current state, and misjudgment on the abnormalsource is avoided. Moreover, the source of the index exception can be accurately and quickly determined.
Owner:ALIBABA GRP HLDG LTD
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