68 results about "Population dynamics" patented technology

The invention discloses a real-time city emergency evacuation simulating method based on mobile phone data. The method comprises the steps: 1) obtaining geographic information system (GIS) map information by using a GIS map information sub-system; 2) calculating personnel real-time distribution information by using a personnel real-time distribution mining sub-system through the mobile phone data and the information obtained by the GIS map information sub-system; 3) after determining the disaster type, class and affected geographic position, using an affected area judgment sub-system to mark an evacuation site as the evacuation terminal point of all persons; 4) according to the obtained GIS map information, personnel real-time distribution information and disaster area judgment information, calculating a personnel evacuation route and an evacuation scheme of all persons by using an evacuation simulation sub-system. The population dynamic distribution point is obtained by a mobile phone communication data mining method. The method is combined with the city evacuation simulation for obtaining the population situation of whole city before the evacuation. The scientificity and accuracy of the city evacuation simulation are ensured, and the effective basis is provided for the following evacuation scheme.

The invention relates to the field of pest control and particularly relates to an automatic monitoring device for locusta migratoria manilensis nymphs and a monitoring method thereof. The device comprises a luring module, a trapping module and a processing module, wherein the luring module is used for luring the locusta migratoria manilensis nymphs; the trapping module is used for collecting the locusta migratoria manilensis nymphs; and the processing module is connected with the luring module and comprises a sensor unit, a counting unit and a transmission unit, wherein the sensor unit is used for sensing the locusta migratoria manilensis nymphs, the counting unit is used for counting the quantity of the locusta migratoria manilensis nymphs, and the transmission unit is used for transmitting data to a data management center. According to the automatic monitoring device provided by the invention, the population quantity of the locusta migratoria manilensis nymphs can be automatically monitored; by adopting a photoelectric technology, computer technology and remote transmission technology combined design, the locust nymphs entering traps can be automatically counted, and data are transmitted to the data management center, so that the function of automatically monitoring the population dynamics of locusta migratoria manilensis is achieved; and the device has the characteristics of high efficiency, high sensitivity and high specificity.

The invention relates to a method for identifying Frankliniella occidentalis species by utilizing PCR (Polymerase Chain Reaction)-RFLP (Restriction Fragment Length Polymorphism) technology, comprising the following steps: (1) extracting Frankliniella occidentalis genome DNA; (2) conducting PCR amplification to the mitochondrion COI gene of the Frankliniella occidentalis genome DNA by taking the Frankliniella occidentalis genome DNA as a template; (3) conducting enzyme cutting to the PCR product prepared in step (2) by adopting restriction enzyme EarI to obtain an enzyme cutting product; and (4) conducting agar gel electrophoresis analysis on the enzyme cutting production prepared in step (3). The restriction enzyme is the common restriction enzyme, therefore, the method provides a simple, convenient and stable enzyme cutting marker for screening two types of Frankliniella occidentalis, and simultaneously explores and establishes an identification technology for the two types of Frankliniella occidentalis, and lays a foundation for identification on the population dynamics of the two types of Frankliniella occidentalis and research on biology and invasion mechanisms.

The invention discloses a biomass population dynamics predictive parsing worldwide general key factor presupposing array platform. Mass of standard environment factor arrays are preset, the world population dynamic prediction users select content fit for own country or local areas to construct an accurate specified area and specific biological population dynamics statistical prediction model through an Internet user registration system in real time, accurate quantitative forecast is conducted on related biological future trends conveniently, each preset datum is positioned by row variable coordinates and column variable coordinates, each positioned independent datum cannot transpose with one another, the row variable coordinates serve as time coordinates, and the column variable coordinates serve as space coordinates. The problems that in current life population prediction an effective prediction models of a plurality of important biological population cannot be constructed, or the prediction effect of the constructed models is poor, or the application range is narrow due to the fact that users cannot obtain enough effective environment information quantity are solved.

The invention discloses a fast labeling and tracking method of recombinant human adenovirus type 5. An aggregation-induced emission molecule is used as a fluorescence label, and through electrostaticinteraction, human adenovirus type 5 is labeled by the aggregation-induced emission molecule. Through a laser confocal imaging analysis system, a whole infection process of the human adenovirus type 5infecting a host cell can be tracked. The labeling method is simple and efficient, effects on adenovirus activity are small, and population dynamic infection behaviour of the adenovirus in the singlecell can be fully reflected. The multiobjective real-time long-time human adenovirus type 5 tracking method in combination with excellent optical property of the aggregation-induced emission moleculeis built, and a powerful tool is provided for globally and efficiently studying a human adenovirus type 5 infection mechanism.