Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Urban economic circle equidistant attenuation index scale method

A technology of attenuation index and economic circle, applied in the field of economic development, can solve problems such as differences in knowledge background, unavoidable subjectivity in index selection, and ambiguous corresponding relationships, etc., and achieve the effect of high practical value

Pending Publication Date: 2020-10-30
INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the common shortcomings of these methods are not only that the index system involves a large number, the corresponding relationship between the index and the city connection, the index and the urban radiation and other urban attributes is relatively vague, but also the characteristics of the selected indicators are very different due to different city samples, and because different researchers exist. Large differences in knowledge background make it difficult to avoid the subjectivity of indicator selection
[0004] How to develop a simple, scientific and effective variable decay index model to quantitatively characterize the spatial variation characteristics of the main indicators of the urban economic circle as the center distance increases, and to solve the complex urban center-outer interaction, radiation and agglomeration capabilities To make up for the lack of accuracy and scientificity of the commonly used urban gravity model in expressing urban quality by variables such as GDP and population, and to avoid urban gravity models focusing on the city-city scale equivalence and the same-level relationship, while ignoring the city-county domain -The lack of equality between township administrative regions and different levels of connection is of great theoretical significance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Urban economic circle equidistant attenuation index scale method
  • Urban economic circle equidistant attenuation index scale method
  • Urban economic circle equidistant attenuation index scale method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038]The technical solutions in the embodiments of the present invention will be clearly and completely described below, obviously, the described embodiments are only some of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0039] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the drawing). If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, in the present invention, descriptions such as "first", "second" and so on are used for description purposes only, and should not be understood as indicating or ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an urban economic circle equidistant attenuation index scale method. The method comprises the following steps: S1, establishing an urban equidistant ring and variable attenuation relation conceptual model; s2, constructing an attenuation index quantitative expression by utilizing the relative ratio of the main variable to the central city corresponding variable and a composite function between the central distances; s3, performing classified statistics on main variables of different economic circle layers; s4, calculating attenuation indexes of different variables and different ring layers one by one; s5, compiling attenuation index change curve graphs of different city centers and different variables through the steps S1, S2, S3 and S4; representing attenuation characteristics of the same central city and different variables by using an intuitive graph, and describing attenuation differences of different central cities and the same variable. And furthermore, the internal structure and the spatial pattern of the urban economic circle are deepened and understood, the radiation and gathering capability rule of an urban center is understood, and the goal of urban and regional sustainable development is served.

Description

technical field [0001] The invention belongs to the technical field of economic development, and in particular relates to an urban economic circle equidistant attenuation index scale method. Background technique [0002] German agricultural economist Johan Heinrich von Thunnen proposed the "Thunnen ring" applicable to agricultural production in 1826, which opened a precedent for the circle structure theory. With the advance of the industrial revolution, German economist A. Weber, American economist Edgar Hover and others created and perfected the theory of industrial location in 1909 and 1914. In 1933, German urban geographer W. Christaller put forward the "Central Place Theory" by integrating the relationship between urban functions and scales into the location theory, which became the core of urban geography in the study of urban spatial structure. one of the theories. There is a close connection between the city and its surrounding areas, and the spatial interaction bet...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06Q50/26G06F17/18G06F16/904G06Q10/06
CPCG06F17/18G06Q10/06393G06Q50/26G06F16/904
Inventor 方一平朱冉张羿轲
Owner INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products