Notice of Retraction Application of fuzzy matter-element model based on coefficients of entropy in evaluation of water environment quality of weihe baoji segment

2011 ◽  
Author(s):  
Hengxing Xie ◽  
Shuying Zhao
Keyword(s):  
Water Environment ◽  
Element Model ◽  
Environment Quality ◽  
Model Based ◽  
Matter Element Model

scholarly journals Evaluating Cultural Landscape Remediation Design Based on VR Technology

2021 ◽  
Vol 10 (6) ◽  
pp. 423
Author(s):  
Zhengsong Lin ◽  
Lu Zhang ◽  
Su Tang ◽  
Yang Song ◽  
Xinyue Ye
Keyword(s):  
Cultural Landscape ◽  
Aesthetic Experience ◽  
Water Environment ◽  
Vegetation Coverage ◽  
Visual Fatigue ◽  
Environment Quality ◽  
Rural Revitalization ◽  
Remediation Design ◽  
Ecological Remediation

Due to the recent excessive pursuit of rapid economic development in China, the cultural heritage resources have been gradually destroyed. This paper proposes cultural recovery and ecological remediation patterns, and adopts virtual reality (VR) technology to evaluate the visual aesthetic effect of the restored landscape. The results show that: (1) the average vegetation coverage increased, providing data support for remediation design evaluation; and (2) the fixation counts and average saccade counts of the subjects increased after the remediation design, indicating that the restored cultural landscape reduced visual fatigue and provided a better visual aesthetic experience. Furthermore, the comparative analysis of the quality of the water environment shows that the remediation design project improved the ecological environment quality of the relics area. The results of this study will contribute to rural revitalization in minority areas in southwest China.

Environmental Impact Analysis of Water Environment in Coal Mining Areas Based on Matter-Element Model

2010 ◽  
Vol 108-111 ◽  
pp. 403-408 ◽  
Author(s):  
Qi Liang Wang ◽  
Lei Wang
Keyword(s):  
Coal Mining ◽  
Large Scale ◽  
Impact Analysis ◽  
Water Environment ◽  
Element Model ◽  
Evaluation Index System ◽  
Assessment Model ◽  
Environment Impact ◽  
Mining Areas ◽  
Matter Element Model

In connection with the problems that coal mining accounts for water environment pollution and socio-economic development, the main factors was analyzed. From water environment system, ecological system and socio-economic system, corresponding evaluation index system was perfected and became fit for factual situation. Matter-element model of water environment impact evaluation was constructed and used to evaluate four large-scale coal mining areas. The results showed that assessment model in accordance with the objective reality. Compared with other evaluation models, matter-element model is more accurate and comprehensive. By matlab, a calculating program was made and can be dynamically amended.

scholarly journals Assessment of River Water Quality Based on an Improved Fuzzy Matter-Element Model

2019 ◽  
Vol 16 (15) ◽  
pp. 2793 ◽  
Author(s):  
Yumin Wang ◽  
Weijian Ran ◽  
Lei Wu ◽  
Yifeng Wu
Keyword(s):  
Water Quality ◽  
River Water ◽  
Objective Assessment ◽  
Integrated Approach ◽  
Element Model ◽  
River Water Quality ◽  
Matter Element Model ◽  
Pair Analysis ◽  
Coefficient Method

In this paper, an improved fuzzy matter-element (IFME) method was proposed, which integrates the classical matter-element (ME) method, set pair analysis (SPA), and variable coefficient method (VCM). The method was applied to evaluate water quality of five monitor stations along Caoqiao River in Yixing city, Jiangsu Province, China. The levels of river water quality were determined according to fuzzy closeness degree. Compared with the traditional evaluation methods, the IFME method has several characteristics as follows: (i) weights were determined by the VCM method, which can reduce workload and overcome the adverse effects of abnormal values, (ii) membership degrees were defined by SPA, which can utilize monitored data more scientifically and comprehensively, and (iii) IFME is more suitable for seriously polluted rivers. Overall, these findings reinforce the notion that an integrated approach is essential for attaining scientific and objective assessment of river water quality.

KUALITAS LINGKUNGAN PERAIRAN DAN KONDISI OSEANOGRAFI DI KAWASAN INDUSTRI SEKUPANG KOTA BATAM = Water Environment Quality and Oceanographic Conditions in the Industrial Area Sekupang, Batam

2016 ◽  
Vol 14 (1) ◽  
pp. 35
Author(s):  
Agung Riyadi ◽  
Matih Santos
Keyword(s):  
Water Quality ◽  
High Tide ◽  
Water Environment ◽  
Industrial Area ◽  
Poor Quality ◽  
Primary Data ◽  
Quality Model ◽  
Environment Quality ◽  
A Value

This study is located in industrial area in Sekupang, Batam. Primary data collection includes water quality, aquatic biota, and the tidal current direction and speed measurement. Overall water quality conditions in the surrounding industrial area Sekupang is still good, it can be seen from the results of laboratory analysis is still below the quality standards specified . Flow pattern at high tide is moving south at a speed of 1 m / sec, while at low tide movement heading north flows with varying speeds ranging from 0.1 m / sec to 1 m / sec. Tidal patterns according to formulation Formzahl 0.48, which means there is a double mix of ups and downs in a day where there will be two times of ups and downs twice but different amplitudes, and riding pasutnya up to 2.93 m. Phytoplankton in the study area found 25 species such as Skeletonema sp., Chaetoceros sp, sp Lauderia which dominate the waters. There is also a kind of Dynophyceae with species such as Peridinium sp, whereas Cyanophyceae types are Trichodesmium sp. Results of analysis diversitasnya index of 1.54, which identifies those waters have poor quality. Evenness index/species uniformity of 0.43 indicates the quality of its waters being. While the dominance index was the quality of the water has a value of 0.41. Mike21 hydrodynamic modeling is used in assisting the analysis of the direction and speed of global flows in accordance with the pattern of tidal and bathymetric depth.Keyword: patterns of currents, tides, environmental quality, model Abstrak Penelitian ini berlokasi di kawasan industri Sekupang Kota Batam. Pengambilan data primer meliputi kualitas air, biota perairan, pasang surut dan pengukuran arah dan kecepatan arus. Secara keseluruhan kondisi kualitas perairan di sekitar kawasan industri Sekupang masih baik, hal ini dapat dilihat dari hasil analisa laboratorium masih di bawah baku mutu yang ditetapkan. Pola arus pada saat pasang bergerak ke arah selatan dengan kecepatan 1 m/detik, sedangkan pada saat surut pergerakan arus mengarah ke utara dengan kecepatan bervariasi berkisar 0,1 m/detik hingga 1m/detik. Pola pasang surut menurut formulasi Formzahl 0,48 yang artinya terdapat pasang surut campuran ganda dimana dalam satu hari akan terjadi dua kali pasang dan dua kali surut akan tetapi amplitudo berbeda-beda, dan tunggang pasutnya hingga 2,93 m. Fitoplankton di wilayah penelitian dijumpai 25 spesies seperti Skeletonema sp., Chaetoceros sp, Lauderia sp yang mendominasi perairan. Juga terdapat jenis Dynophyceae dengan spesies seperti Peridinium sp, sedangkan jenis Cyanophyceae terdapat Trichodesmium sp. Hasil analisa indeks diversitasnya 1,54 yang mengidentifikasikan perairan tersebut mempunyai kualitas buruk. Indeks kemerataan/keseragaman spesies 0,43 yang mengindikasikan kualitas perairannya sedang. Sedangkan indeks dominansi perairan mempunyai kualitas sedang dengan nilai 0,41. Pembuatan model hidrodinamika menggunaan Mike21 di dalam membantu analisis arah dan kecepatan arus secara global sesuai dengan pola pasang surut dan kedalaman batimetri. Kata kunci: pola arus, pasang surut, kualitas lingkungan, model

scholarly journals A Study of Vertical Dwelling Design Model Based on Community Interaction in Winongo Riverbank Yogyakarta

2019 ◽  
Vol 3 (2) ◽  
pp. 171-186
Author(s):  
Sidhi Pramudito ◽  
Antonius Lanang Tegar Wicaksana Praptantya ◽  
David Jeffry Nasir
Keyword(s):  
Urban Areas ◽  
Alternative Solution ◽  
Design Model ◽  
Urban Rivers ◽  
Community Interaction ◽  
Environment Quality ◽  
Model Based ◽  
Living Space ◽  
The Government

Riverbanks are one of the urban areas that often experience decrease in its environment quality. This is caused by the improper utilization of riverbanks as a living space. Consequently, the quality of adequate housing for the community is difficult to achieve. Although the government has tried to build flats as a solution to the problem, some residents choose to abandon them because of its formal and rigid vertical dwelling model that make the residents feel lack of togetherness and interaction between community. This kind of communal perspectives sometimes cannot be found when they live in horizontal dwelling (kampung). The purpose of this paper is to generate recomendation for a vertical dwelling model based on the form of community interaction in Kampung Gampingan, located at the Winongo River. The paper is expected to be an alternative solution for stakeholders in planning and designing settlements, especially in villages on the banks of urban rivers.

Quality Evaluation of Belt Conveyor Based on Extenics Theory

2013 ◽  
Vol 694-697 ◽  
pp. 2960-2963 ◽  
Author(s):  
Chen Liu ◽  
Xu Ming Wang
Keyword(s):  
Quality Evaluation ◽  
Element Model ◽  
Belt Conveyor ◽  
Analytic Hierarchy ◽  
Evaluation Indexes ◽  
Quality Grade ◽  
Relational Degree ◽  
Matter Element Model ◽  
Hierarchy Process

Extenics theory is used to establish the matter-element model for the quality evaluation of the belt conveyor. Introducing the relational function in the extension set theory to calculate the relational degree, defining the weights of evaluation indexes with AHP (the analytic hierarchy process), and so the quality grade of the awaiting evaluation belt conveyor can be obtained. Taking a type of belt conveyor as an example to study the practical application of the proposed method, the results show that the method possesses a certain practicability. The method can give a reasonable evaluation on the quality of belt conveyor.

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