Multi-Scale Analysis of Marine Environmental Situation in the Caofeidian Nearshore District

2014 ◽  
Vol 937 ◽  
pp. 659-662
Author(s):  
Ying Jie Zhao ◽  
Ming Chang Li ◽  
Yuan Yuan Cao
Keyword(s):  
Environmental Management ◽  
Field Data ◽  
Inorganic Nitrogen ◽  
Scale Analysis ◽  
Dissolved Inorganic Nitrogen ◽  
Multi Scale ◽  
Environmental Situation ◽  
Marine Environmental ◽  
Multi Scale Analysis ◽  
Whole Water

Analysis of marine environment, especially the multi-scale analysis is an efficient means to obtain the environmental situation and guide the environmental management. In this paper, the field data, max, min and average of dissolved inorganic nitrogen (DIN) and phosphate in the Caofeidian marine district, Tangshan Bay is analyzed. The whole water quality situation could be grasped through these analyses. The research results show that the distribution of pollution is disequilibrium and the high value district of pollution exists in research district too.

An Interactive Graph Partition Method Through Combination of Multi-scale Analysis and Level Set

2013 ◽  
Vol 34 (9) ◽  
pp. 2078-2084 ◽  
Author(s):  
Yun-fei Wang ◽  
Du-yan Bi ◽  
De-qin Shi ◽  
Tian-jun Huang ◽  
Di Liu
Keyword(s):  
Level Set ◽  
Graph Partition ◽  
Scale Analysis ◽  
Multi Scale ◽  
Partition Method ◽  
Multi Scale Analysis

scholarly journals Application of wavelet multi-scale analysis in the separation of aeromagnetic data potential field

2021 ◽  
Vol 660 (1) ◽  
pp. 012131
Author(s):  
Hailong Sun ◽  
Yingxin Liu ◽  
Zheng Wei ◽  
Xu shi ◽  
Yahong Wang ◽  
...  
Keyword(s):  
Potential Field ◽  
Scale Analysis ◽  
Aeromagnetic Data ◽  
Multi Scale ◽  
Multi Scale Analysis

Study on Damage Detection of Bridge Based on Wavelet Multi-Scale Analysis

2013 ◽  
Vol 639-640 ◽  
pp. 1010-1014 ◽  
Author(s):  
Ke Ding ◽  
Ting Peng Chen
Keyword(s):  
Wavelet Transform ◽  
Damage Detection ◽  
Detection Method ◽  
Mode Shapes ◽  
Scale Analysis ◽  
Multi Scale ◽  
Damage Location ◽  
Transform Coefficients ◽  
Beam Bridge ◽  
Multi Scale Analysis

The damage detection method based on wavelet multi-scale analysis is presented in the paper. The damage location can be identified by analyzing the multi-scale wavelet transform coefficients of curvatures of mode shapes. The extreme value of wavelet transform coefficients indicates the damage location. But it is difficult to detect the location of defect if the defect is near to the equilibrium position of vibration. In order to solve this problem, we put forward a method which is to add the wavelet transform coefficients of multi modals together. The method can effectively overcome the above problem. Three damage situations of simply supported beam bridge are discussed in the paper. The results show that the peaks of wavelet transform coefficients indicate the damage location of structural. It is possible to pinpoint the damage location based on wavelet multi-scale analysis on curvatures of mode shapes.

Sign in / Sign up

Export Citation Format

Share Document