Research of Mining Subsided Land Reclamation System Based on GIS

2011 ◽  
Vol 130-134 ◽  
pp. 1858-1861
Author(s):  
Da Bing Yang ◽  
Wen Xin Zhang ◽  
Qing Yao
Keyword(s):  
Economic Evaluation ◽  
Land Reclamation ◽  
Ground Deformation ◽  
Evaluation Model ◽  
Calculation Model ◽  
Deformation Analysis ◽  
Effective Measure ◽  
Volume Calculation ◽  
Suitability Evaluation ◽  
Reclamation System

Land reclamation is an effective measure in recovering land resources, protecting ecological environment and solving the contradiction between people and land. This paper adopts ArcEngine, ArcSDE, Oracle, Micirosoft Visual C# and other technologies to develop mining subsided land reclamation system which integrates reclamation suitability evaluation model, ground deformation prediction model, land cube calculation model and economic evaluation model. The system realized the information and network management about mining subsided land, provided the functions such as map operation, ground deformation analysis, earth volume calculation, reclamation suitability evaluation and economic evaluation. It can be used to help decision maker choose and plan their activities more effectively and scientifically to match situation of land reclamation and ecological restoration.

scholarly journals Suitability Evaluation for Land Reclamation of Nonmetallic Mines in Xinjiang, China

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Guobin Tang ◽  
Zizhao Zhang ◽  
Qianli Lv ◽  
Ruihua Hao ◽  
Kaikai Wang
Keyword(s):  
Cluster Analysis ◽  
Discriminant Analysis ◽  
Land Reclamation ◽  
Evaluation Model ◽  
Evaluation Index System ◽  
Ecological Environment ◽  
Analysis Method ◽  
Suitability Evaluation ◽  
Factor And Cluster Analysis ◽  
And Cluster Analysis

The ecological environment is fragile in Xinjiang, so it is necessary to carry out land reclamation for mines to restore its ecology. The premise of mines land reclamation is to determine the direction of land reclamation, which requires the suitability evaluation for land reclamation. In this paper, the evaluation index system and suitability evaluation model for land reclamation of nonmetallic mines in Xinjiang Uygur Autonomous Region were established. This model was established by using factor analysis, cluster analysis, and discriminant analysis and tested by back-substitution. First, using 149 units of 21 nonmetallic mines as research samples, the samples were divided into 4 categories by a combination of factor and cluster analysis. Then, the samples were trained using a discriminant analysis method to establish the corresponding land reclamation suitability evaluation model. This model was verified by back-substitution with an accuracy of 98.7%, and only 2 of 149 samples were misclassified. Finally, the evaluation model was applied to the Dabancheng Toga Solo limestone mine in Urumqi. Evaluation analysis of 15 land reclamation units of this mine showed satisfactory results. The evaluation model developed here could serve as a powerful complement to the evaluation of land reclamation suitability in Xinjiang.

scholarly journals Cost-Effectiveness of an Exercise Programme that Provided Group or Individual Training to Reduce the Fall Risk in Healthy Community-Dwelling People Aged 65–80: A Secondary Data Analysis

Healthcare ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 714
Author(s):  
Isaac Aranda-Reneo ◽  
Laura Albornos-Muñoz ◽  
Manuel Rich-Ruiz ◽  
María Ángeles Cidoncha-Moreno ◽  
Ángeles Pastor-López ◽  
...  
Keyword(s):  
Economic Evaluation ◽  
Cost Effectiveness ◽  
Older People ◽  
Incremental Cost ◽  
Fall Risk ◽  
Community Dwelling ◽  
Effective Measure ◽  
The Individual ◽  
The Cost ◽  
Individual Training

Research has demonstrated that some exercise programs are effective for reducing fall rates in community-dwelling older people; however, the literature is limited in providing clear recommendations of individual or group training as a result of economic evaluation. The objective of this study was to assess the cost-effectiveness of the Otago Exercise Program (OEP) for reducing the fall risk in healthy, non-institutionalized older people. An economic evaluation of a multicenter, blinded, randomized, non-inferiority clinical trial was performed on 498 patients aged over 65 in primary care. Participants were randomly allocated to the treatment or control arms, and group or individual training. The program was delivered in primary healthcare settings and comprised five initial sessions, ongoing encouragement and support to exercise at home, and a reinforcement session after six months. Our hypothesis was that the patients who received the intervention would achieve better health outcomes and therefore need lower healthcare resources during the follow-up, thus, lower healthcare costs. The primary outcome was the incremental cost-effectiveness ratio, which used the timed up and go test results as an effective measure for preventing falls. The secondary outcomes included differently validated tools that assessed the fall risk. The cost per patient was USD 51.28 lower for the group than the individual sessions in the control group, and the fall risk was 10% lower when exercises had a group delivery. The OEP program delivered in a group manner was superior to the individual method. We observed slight differences in the incremental cost estimations when using different tools to assess the risk of fall, but all of them indicated the dominance of the intervention group. The OEP group sessions were more cost-effective than the individual sessions, and the fall risk was 10% lower.

Economic Appraisal of Energy-Conservation Construction during the Build-and-Run Cycle

2011 ◽  
Vol 71-78 ◽  
pp. 451-455
Author(s):  
Yi Fang Zhao
Keyword(s):  
Economic Evaluation ◽  
Energy Conservation ◽  
Energy Saving ◽  
Evaluation Model ◽  
Building Energy ◽  
Economic Benefits ◽  
Economic Appraisal ◽  
Economic Evaluation Model ◽  
Building Energy Saving

Based on the build-and-run cycle of the energy-conservation building, this paper studied from the perspective of building energy-saving. It analyzed the amount of increased investment through the analysis of build-and-run cycle cost and economic benefits of the energy-conservation building throughout the life cycle.Finally it establishes an economic evaluation model for the energy-saving building.

Analysis of regional economic evaluation based on machine learning

2020 ◽  
pp. 1-11
Author(s):  
Xiaoying Xu ◽  
Zhijian Zeng
Keyword(s):  
Economic Development ◽  
Economic Evaluation ◽  
Regional Economy ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Real Data ◽  
Entropy Weight ◽  
Regional Economic ◽  
Economic Strategy ◽  
Table Data

The regional economic evaluation and analysis has guiding significance for the subsequent economic strategy formulation. Due to the influence of various factors, the volatility of some current economic evaluation models is relatively large. According to the needs of regional economic evaluation, this study uses computer technology combined with regional economic development to build an economic development evaluation model to evaluate and analyze the regional economy. Through comparative analysis, this study selects the entropy weight-TOPSIS model as the comprehensive evaluation model of regional economy, uses the entropy weight method to determine the weight of each index, and then uses the TOPSIS method to conduct comprehensive evaluation. In addition, this study designs a control experiment to analyze the performance of this study model. Moreover, this study uses the model proposed in this study to conduct regional economic evaluation in recent years, and compares it with real data, and observes the test results with statistical charts and table data. The research results show that this research model has a certain effect, which can provide analytical tools for the follow-up economic strategy research and analysis.

Economic Evaluation of Remanufacturing End-of-Life Electromechanical Products

2012 ◽  
Vol 472-475 ◽  
pp. 2670-2673
Author(s):  
Zhao Long Xu ◽  
Su Mei Xiao ◽  
Yu Qiang Shi
Keyword(s):  
Life Cycle ◽  
Economic Evaluation ◽  
End Of Life ◽  
Product Life Cycle ◽  
Evaluation Model ◽  
Waste Products ◽  
Product Life ◽  
Electromechanical Products ◽  
Economic Evaluation Model

With the shortening of product life cycle, and the constant increasing of End-of-life Electromechanical Products, the processing of waste products appears especially important and urgent. This paper, based on an existing recycle model, has established an economic evaluation model of end-of-life electromechanical products. Based on the collection of a large amount of data and tests, the research and evaluation of the engine has proved it is suitability for remanufacturing.

FEATURES OF RESEARCH, DESIGN AND OPERATION OF HYDROMELIORATIVE SYSTEMS IN THE AREA OF INTERNATIONAL AIRPORTS

2021 ◽  
pp. 30-35
Author(s):  
A. E. KASYANOV ◽  
Keyword(s):  
Research Design ◽  
Standard Error ◽  
Land Reclamation ◽  
Survey Design ◽  
Bird Species ◽  
The State ◽  
Moscow Region ◽  
International Airport ◽  
Nesting Sites ◽  
Reclamation System

The features of the survey, design and operation of irrigation and drainage systems in the area of the international airport «Zhukovsky» located in the Moscow region, Russia. Design surveys included an ornithological survey of the reclaimed area. Bird species, nesting sites and the number of nests were identified. The number of nests before reclamation averaged 200 ± 1.5 (mean ± standard error). Hydro reclamation in the airport area eliminated local swamping areas and nesting areas disappeared. Draining was carried out by open drains. The distance between the open drains is 120 m, the length is from 700 to 1200 m. There are no capital irrigation and drainage facilities. On the polder site the project provides for open drains and drains. The state of the land reclamation system has been deteriorating since 2001. Periodic waterlogging of a part of the polder area and the formation of a nesting area for black-headed gulls are noted. Airbus A321 aircraft fl y over the chicks while feeding at an altitude of 231.5 m, the size of which in the eyes of the chicks is comparable to the size of the parent gulls.

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