International Journal of Environmental Technology and Management (28 papers in press)
Big Data Analytics: Classification and Solution for Soil and Fertilizer System
by Raghu Garg, Himanshu Aggarwal
Abstract: Soil is one of the most important factors for the growth of plants. It carries various nutrients like water and certain contents of air which are essential for plant nourishment. At times over exposure becomes the root cause for the degradation of an otherwise fertile soil. In present times fertilizers are given the responsibility to maintain the productivity that we yield from the soil. The method prevalent to determine the quality of the soil is known as soil analysis. Soil analysis generates an estimation of the unstructured data through the process of examining the defined soil. The specimens of a wide spectrum of soils are tested in the laboratories in order to develop heaps of agricultural data. During our research work different machine learning algorithm using big data analysis are used to detect the fertilizer recommendation classes through defined soil nutrition composition. The reports are collected from Tata soil testing laboratories for experiment. Stochastic Gradient Descent (SGD) and Artificial Neural Network (ANN) are the classification methods that are compared in this paper. The performance measures inclusive of the accuracy and area under curve (AUC) are exercised to determine efficiency of classification model. Experiments show that the SGD performs a lot better then artificial neural network when it comes to accuracy, AUC and pace. The ANN is outdone by SGD with linear regression. The percentage of overall accuracy and AUC values of SGD are 88% and 86% respectively. The overall accuracy and AUC using ANN is 80% and 79% respectively. The results also reflect that SGD with linear regression are feasible in accurate recognition of the fertilizer recommendation classes.
Keywords: Agriculture data; Fertilizer recommendations; SGD; Soil reports; artificial neural network; AUC.
Special Issue on: Waste Management and Environmental Sustainable Development
Application of GIS Remote Sensing Information Integration in Eco-environmental Quality Monitoring
by Di Yao
Abstract: With the development of society, the protection of the quality of the ecological environment has received more and more attention and protection from the society. The use of scientific methods to monitor the ecological environment plays a key role in protecting the ecological environment. The integration of GIS remote sensing information has many advantages in collecting information, so it is very necessary to apply research on the integration of GIS remote sensing information in ecological environment quality monitoring. The purpose of this article is to solve the problem of integrated application of GIS remote sensing information in eco-environmental quality monitoring. By studying the theoretical use method of GIS remote sensing information integration and the data collected by experimental information, and using AHP to build an ecological environment evaluation system, the ArcGIS platform The ecological environment monitoring and evaluation model method explores the impact of GIS remote sensing information integration technology on the application of ecological environment quality monitoring. The research results show that the application of GIS remote sensing information integration technology in the monitoring of ecological environment quality improves the accuracy of environmental monitoring by 20% and is predictive. It has been verified that the GIS remote sensing information set plays a very good role in the monitoring of ecological environment quality, which can promote the accuracy of social detection of environmental quality to a certain extent to achieve the protection of ecological environment treatment.
Keywords: Impact of GIS Remote Sensing Information Integration; Ecological Environment;Environmental Monitoring;Data Collection.
Energy and Exergy analysis of a CI engine fuelled with blend of liquid Hydro Carbon waste plastics fuels and diesel
by Nabnit Panigrahi, Sruti Ranjan Mishra
Abstract: The present work involves the energy and exergy analysis of a 5.9 kW diesel engine fuelled with diesel and WPE10 (10% of Low-density polyethylene (LDPE) oil blended with 90% diesel by volume). The LDPE oil was obtained at optimum condition of kaolin catalyzed pyrolysis method. The analysis was conducted on per mole of fuel and on stoichiometric basis. The energy and exergy analysis was carried out by using 1st law and 2nd law of thermodynamics respectively. The energetic and exergetic performance of WPE10 resembles with the diesel fuel which can be a substitute as an alternative fuel.
Keywords: LDPE; Diesel engine; energy; Exergy.
Simulation Experimental Study on the Influence of Plow Pan on Water Infiltration in Dry Land
by Xiuyuan Lu, Li Zhao, Kaijian Wu
Abstract: In order to study the influence of plow pan on water infiltration in dry land, the simulated plow pan test blocks were made with length of 9cm, 18cm and 27cm, thickness of 4cm, 8cm and 12cm, width of both 4cm, and dry volumetric weight of 1.50g
Keywords: Plow pan; water infiltration process; distribution of infiltrated water.
Innovation of Enterprise Environmental Cost Management Path from the Perspective of Sustainable Development
by Shuying Shang, Ze-ming Chen
Abstract: With the rapid development of the international economy and the rapid expansion of the world\'s population, environmental problems are increasing. However, at present, large and medium-sized enterprises cannot well control serious environmental cost problems. In order to control the environmental cost from the source and effectively manage the environmental cost, this paper takes the environmental cost management from the perspective of sustainable development as the main line, and compares the traditional and modern environmental cost management models to build a model of environmental cost management from the perspective of sustainable development. The total environmental cost of HL companies increased from 17.03% in 2015 to 17.86% in 2018. The environmental costs of the production and management stages from 2015 to 2018 increased from 12.66% to 14.69%. From 2015 to 2018, HL lost the most material costs, rising from 30.6% to 33.7%; the cost of energy costs took the second place, rising from 21.97% to 26.19%. Based on the research of material flow cost accounting in HL Company\'s environmental cost management, it provides data support for the enterprise\'s environmental cost management, which is conducive to the analysis of the enterprise\'s environmental cost management in various stages, such as the enterprise\'s R & D design, product production and management, waste recycling, sales, etc. This also provides companies with suggestions for improvement and saves their resources and energy.
Keywords: Sustainable Development; Environmental Cost Management; Loss Cost; Material Flow Cost Accounting.
Simulation Research of Water Flowing Fracture Zone of Overburden Strata in Fully Mechanized Caving Mining
by XiaoMin Liu, Haiyan Liu, Zheng Wan, Lifei Wang, Haifeng Pei
Abstract: Fully mechanized caving mining is widely used because it can quickly convert coal resources into productivity advantages. The water resources of Bayangol Coal Mine is scarce and the vegetation coverage rate is low. The evolution of the water flowing fracture zone in overburden strata under the fully mechanized caving mining conditions is unknown, and the impact on the ecological environment cannot be predicted. Therefore, this paper takes the 311101 working face as the research object, adopts theoretical analysis, FLAC3D numerical simulation and other methods to carry out the study on the evolution of water flowing fracture zone in fully mechanized caving mining in Bayangol coal mine. Through the integrated application of different methods, the development height of the water flowing fracture zone of 311101 working face is determined, and the evolution of the water flowing fracture zone in overburden strata of the fully mechanized caving mining in Bayangol coal mine is preliminarily revealed, which provides guidance and reference for the subsequent working face mining.
Keywords: water flowing fracture zone; numerical simulation; evolution; mine.
Demonstration of Urban Environmental Protection Planning and Ecological Construction Index System
by Xiaotang Xia, Tingyang Li
Abstract: Environmental protection has always been the basic national policy in China. Although China\'s economy has developed rapidly, the research on urban environmental protection and ecological construction index system is still in its infancy. The main reason is that the scholars come from different fields and have different academic backgrounds and research methods, which leads to the lack of a unified evaluation system standard for urban environmental protection planning. Many scholars and literatures have discussed the significance of the index system, which provides rich theoretical support for the sustainable development and the construction of ecological city in China. In this paper, the index system of urban planning and ecological environment protection construction is analyzed in depth, and the influence weight of each factor is determined by multi-level grey correlation method, and the urban ecological evaluation index system and evaluation model are established on the level of subjective and objective combination. Taking Shenzhen as an example, this paper analyzes the status and trend of indicators, analyzes the advantages and resistance of Shenzhen in urban ecological construction, provides basic data with constructive significance for Shenzhen\'s ecological construction, and provides reference information for Shenzhen to build a sustainable development city with harmonious development of human and nature, high unity of ecology, society and economy.
Keywords: Urban Environmental Protection Planning; Ecological Construction; Index System; Multi-level Grey Correlation Method.
Reliability Analysis of Vacuum Circuit Breaker with Permanent Magnet Material Actuator based on Competitive Failure Model
by Yan Mu, Yongxing Wang, Jiyan Zou
Abstract: In recent years, permanent magnet actuator is widely used in vacuum circuit breaker. The permanent magnet mechanism studied in this paper adopts NdFeB permanent magnet. The mechanical life of vacuum circuit breakers (VCBs) is an important indicator of its reliability. For the reliability study of VCBs, the majority of the current methods are based on the failure time or reliability modeling method that considers the degradation indicator. In this study, 12 KV permanent magnet-operated VCBs have been tested for their mechanical lives. Given the degradation failure following the Gaussian process and traumatic failure of the Weibull distribution, the competition failure model is established by considering the correlation between the two failure modes. The model parameter estimation is determined using the EM algorithm. Eventually, the reliability of the model is obtained. In this paper, the evaluation results of different methods are compared and analyzed, which further proves that the method proposed in this paper has better evaluation accuracy and certain engineering application value.
Keywords: reliability; competing failure model; vacuum circuit breaker.
Strategic Relationship between Water Conservancy Project Construction and Environmentally Sustainable Development
by Lu Zhang, Zhen Tang, Sulu Zhu, Yuan Song
Abstract: In recent years, with the rapid development of science and technology, people\'s demand for water conservancy projects is increasing. The massive construction of water conservancy projects promotes the development of social economy, but it also brings great damage to the ecological environment. In order to achieve sustainable development, it is necessary to study the strategic relationship between water conservancy construction and environmentally sustainable development. The purpose of this article is to solve how to realize the sustainable development of water conservancy project construction and environmental problems, by studying the effects of hydraulic engineering construction on the environment problems, to field situation in water conservancy project construction, water conservancy project is discussed in detail the development of the relationship between construction and protection of the environment, how to scientific and reasonable deal with the relationship between the deep research and analysis. Research results show that water conservancy project construction and environment construction between belongs to restrict and promote each other, in this paper, how to deal with the relationship between science put forward the prevention and control method of the combination, responsibility, in the end, and the method to simulate experiment, the experimental results show that in this way will reduce 12% of the water conservancy projects have a negative impact to the environment, and can improve the economy by about 2%.
Keywords: Water Conservancy Project; Environmental Construction; Sustainable Development; Strategic Relationship.
Integration of Industry and City and Economic Development based on Environmental Sustainable Development
by Xiaoying Wan
Abstract: The purpose of this study is based on the current nationwide both the background of the rapid rise of industry and urbanization, based on the current production city integration development, put forward the key problems of city fusion, thinking about how to on the basis of the sustainable development of environment, promote industrial development and enhance the level of urban construction integration development. Taking Jiangxi province in the central region as a case, this paper evaluates the degree of product-city integration in Jiangxi province by using the method of grey correlation analysis, and understands the basic problems existing in the development of product-city integration in Jiangxi province. The efficiency of environmental sustainable development in Jiangxi province was evaluated by using the optimized data envelopment model. According to the identification results of the degree of city and industry integration, the relationship between environmental sustainable development and efficiency of city and industry integration and economic development was revealed.
Keywords: Environmental Sustainable Development; Integration of Industry and City; Economic Development; Grey Relational Degree Analysis.
Evaluation method and promotion countermeasures of green competitiveness for industrial enterprises under the background of environmental protection
by Qiang Mao
Abstract: Industrial enterprises are the foundation of the real economy and an important support for building strategic advantages for future development. The industrialization process has created unprecedented material wealth for our country, but also produced irreparable environmental pollution. To comprehensively and objectively reflect the sustainable development ability of industrial enterprises, an evaluation method of green competitiveness for industrial enterprises is proposed. First, the construction principle of evaluation indices is put forward, and then the evaluation indices system of green competitiveness for industrial enterprises is constructed. In addition, in order to highlight the democratic characteristics of decision-making, an evaluation method of green competitiveness based on stakeholder perspective is proposed. Moreover, the green competitiveness of industrial enterprises in 14 cities is evaluated by using the evaluation method. Finally, the development countermeasures are put forward to promote the green competitiveness of industrial enterprises based on the evaluation results.
Keywords: green competitiveness; industrial enterprises; evaluation method; promotion countermeasures.
The Environmental Protection Path of World Cultural Heritage Sites from the Perspective of Circular Economy
by Zhengfa Xie
Abstract: A cultural heritage site is a symbol of a country s civilization, and it is also a trace of a country s historical development. This article aims to study the environmental protection of world cultural heritage sites from the perspective of circular economy. This article uses the method of big data analysis, using techniques such as surveys, interviews, and statistics to investigate people s awareness of the circular economy and the environmental protection of the world s cultural heritage sites. Investigate and analyze the role of environmental protection; investigate and study the connotation of circular economy, the significance of protecting the environment protection of world cultural heritage sites and the specific measures for environmental protection of world cultural heritage sites. The results show that about 55% of college students only have a little understanding of the circular economy, and about 58% of students believe that environmental protection in world cultural heritage sites is very necessary; at the same time, 64.5% of people can fully realize the importance of environmental protection. In addition, most people believe that environmental protection in world cultural heritage sites can effectively protect world cultural heritage, promote economic development, social sustainable development, and improve the degree of social civilization. Most staff believe that the protection measures mainly rely on the circular economy. Environmental protection in world cultural heritage sites can attract more foreign tourists, and improving environmental protection can not only improve the cultural quality of the tourist destination itself, but also continuously improve the local economic benefits. Therefore, the environmental protection of world cultural heritage from the perspective of circular economy has become a trend for future development.
Keywords: Environmental Protection; World Cultural Heritage Sites; Circular Economy; Economic Perspective.
Evaluation of the Construction of Water Rights Transaction System in the Yellow River Basin
by Zheng Wan, Haibin Shi, XiaoMin Liu, Haiyan Liu, Xiaoxu Liu
Abstract: The water rights market has not yet been developed, water rights transaction system has not yet been formed in China. To solve these problems, the current states of water rights in China are outlined at first. At second, taking the Yellow River Basin of Inner Mongolia as case study, the water rights transaction system in the Yellow River Basin of Inner Mongolia Autonomous Region are introduced. At last, the system are evaluated from the aspects such as water rights transaction parties, tradable water rights, transaction procedure, transaction price and transaction period . It is conducive to promoting the construction of a fair and orderly water rights transaction market with Chinese characteristics, and provides decision-making reference for improving China's water rights management system
Keywords: Water Rights Transaction; Water Market; the Yellow River Basin; Price Leverage; Chinese Characteristics; Numerical Simulation.
Special Issue on: Application of Remote Sensing and GIS in Environmental Studies
Spatial Balance Degree Evaluation Model Of Land Use Based On Regional Collaborative Remote Sensing Observation
by Huikai Zheng
Abstract: In order to overcome the low accuracy of the traditional spatial balance evaluation method for land use, this paper constructs a spatial balance evaluation model for land use based on regional collaborative remote sensing observation. The land use information is collected by regional collaborative remote sensing observation system, and the evaluation index system and balance degree evaluation model are constructed by synthesizing the information. The supply capacity index and the spatial development intensity index in the evaluation model are calculated by the arithmetic average method and the geometric average method. The ratio between them is defined as the output of the model. The experimental results show that the accuracy of this method is always over 95%, and the evaluation time is less than 2.1s, which can realize the rapid and accurate evaluation of the spatial balance of land use.
Keywords: Regional collaborative remote sensing; Land use; Spatial balance degree; Evaluation.
Dynamic Prediction Of Urban Landscape Pattern Based On Remote Sensing Image Fusion
by Xi-jun Hu, Shi-yi CAO
Abstract: In order to overcome the problems of large prediction error and slow prediction speed in dynamic prediction method of urban landscape, a new dynamic prediction method of urban landscape pattern based on remote sensing image fusion is proposed. The high-resolution remote sensing image is preprocessed by atmospheric correction and radiometric correction to obtain the fusion result of high-resolution remote sensing image. The urban landscape information is extracted from the fusion results, and the corresponding urban landscape pattern analysis model is built. The landscape pattern index is set up in the model, and the dynamic prediction of urban landscape pattern is completed by combining the characteristics of index change with the driving force and image factors of urban pattern change. The experimental results show that the average prediction error is 1.56, and the operation delay is reduced by 2-3s.
Keywords: Fusion; Remote sensing image; Urban landscape pattern; Dynamic prediction;.
Spatial Distribution Characteristics Of Urban Landscape Pattern Based On Multi-Source Remote Sensing Technology
by Sai Liu
Abstract: In order to overcome the low efficiency of feature extraction in traditional research methods for spatial distribution of urban landscape pattern, a new research method based on multi-source remote sensing technology is proposed. Combined with the idea of information entropy and grid division, the spatial secondary grid division of urban landscape pattern is completed by multi-source remote sensing technology. The probability density of spatial distribution of urban landscape pattern is calculated according to the results of secondary grid division. The scale pyramid is established to study the spatial distribution characteristics of urban landscape pattern. The experimental results show that the proposed method can effectively realize the research of spatial distribution characteristics of urban landscape pattern, with high efficiency of feature extraction, and the maximum extraction time is only 0.22 min.
Keywords: Multi-source remote sensing technology; Urban landscape pattern space; Distribution feature extraction; Secondary grid division.
Research on Dynamic Simulation of Land Use Change Based On Geographical Weighted Clue-S Model
by Lede Niu, Mei Pan
Abstract: In order to overcome the problems of poor denoising effect, large quantitative accuracy error and large spatial accuracy error of current land use change simulation methods, a dynamic simulation method of land use change based on geographically weighted CLUE-S model was proposed. Using CLUE-S model to simulate the expansion of urban space, combined with geographic weighted logistic stepwise regression method, the influencing factors of land use change were analyzed. The spatial distribution of future land use area is realized by iteration, and the spatial visualization simulation of land use prediction is realized. The experimental results show that the signal-to-noise ratio of the proposed method is more than 85 dB, the quantitative and spatial accuracy errors are less than 4%, and the ROC value is close to 1, which proves that the spatial simulation effect is relatively good.
Keywords: CLUE-S model; Land use change; Logistic stepwise regression; Dynamic simulation;.
Spatial-Temporal Evolution Of Complex Urban Landscape Pattern Based On Remote Sensing Technology
by Jia-jun Yi, Yan-xiang Xiao
Abstract: In order to overcome the problem that the urban green landscape pattern construction effect is not ideal, this paper proposes the research method of spatio-temporal evolution of urban complex landscape pattern based on remote sensing technology. This method collects landscape pattern information. Landscape images are processed by radiometric correction and geometric correction, and spatial pattern indices are calculated. The experimental results show that: under the research method of spatiotemporal evolution of landscape pattern in this paper, the landscape area of dryland is reduced more, the transfer volume of residential, industrial and mining land and water area is less, and the stability is stronger. The density of landscape edge increased, indicating that the degree of landscape fragmentation in the city has a deepening trend; In terms of landscape spatial heterogeneity, the overall pattern tends to be coordinated, which indicates that the proposed method has good application performance.
Keywords: Remote sensing technology; Landscape pattern; Temporal and spatial evolution.
Dynamic Remote Sensing Monitoring Of Land Cover In Ecological Protection Area Based On Gis Technology
by Wei Li, Chan Lu, Shi-yi Cao
Abstract: In order to overcome the problems of large image deviation and unsatisfactory details retention in traditional monitoring methods, a new remote sensing dynamic monitoring research of land cover in ecological protection area based on GIS technology was proposed. In this method, the combination of joint entropy and optimal index is used to analyze and collect remote sensing images. The geometric distortion is corrected by using the binary homogeneous polynomial correction transformation formula. According to the image enhancement, the invalid information of the image is removed, and the land cover type change is described. Finally, the prediction of land cover dynamic change in the future is completed by creating Markov model. The experimental results show that the accuracy of the land cover remote sensing image data obtained is high, the land cover monitoring rate is 73%, the pixel accuracy is more than 90%, and the edge information maintenance advantage is significant.
Keywords: GIS technology; Ecological protection area; Land cover; Dynamic remote sensing monitoring.
The spatial pattern planning method of rural landscape based on remote sensing technology
by Hongtao Xing
Abstract: In order to overcome that the improvement of individual rural landscape can not meet the needs of the overall development of rural areas, this paper proposes a new method of spatial pattern planning of rural landscape based on remote sensing technology. This method combines the spatial analysis of remote sensing technology, landscape index analysis and system clustering method to study the spatial pattern characteristics of rural landscape and divide them. Then through the methods of spatial statistics, the paper studies the factors that affect the spatial pattern of rural landscape, and finally gives a spatial pattern planning of rural landscape scheme that meets the needs of rural development. The experimental results show that the construction cost is less than 30000 yuan, the planning time is at least 0.582 h, and the economic benefit is at most 231400 yuan, which fully verifies the effectiveness and practicability of the proposed method.
Keywords: Remote sensing technology; Rural landscape; Spatial pattern planning.
An integrated planning method for open space of urban street landscape based on remote sensing technology
by Yuan Shui, Lu Gan
Abstract: In order to overcome the problems of poor quality and low comprehensive score of traditional landscape open space planning methods, this paper proposes a new landscape integration planning method of Street open space based on remote sensing technology. This method uses remote sensing technology to investigate the open space, and the remote sensing image is corrected, enhanced, and image data fusion preprocessed. Through setting the landscape index of urban open space to determine the spatial distribution pattern, combined with the scale, structure, type and function of urban street landscape open space, the relevant pattern index is determined to realize the integrated planning of spatial landscape. The results showed that the greening rate increased by 91.8%. The boundary continuity index was increased by 0.68, the green coverage, biodiversity and traffic flow index were increased by 0.145, 0.235 and 0.983, respectively, while the spatial structure index (SS) was increased by 0.967.
Keywords: Remote sensing technology; Urban street; Open space; Integrated planning;.
Extraction of Carbon emission feature in urban residential area based on remote sensing technology
by Wentao Lei, Hui Yang
Abstract: In order to overcome the problem of low carbon emission characteristics extraction method based on remote sensing technology. Remote sensing technology is used to obtain the remote sensing image of urban residential area. The noise of the remote sensing image is removed, and the radiation of the remote sensing image is corrected to complete the remote sensing image preprocessing. The range of carbon emissions in urban residential areas is obtained by gradient adaptive threshold method. According to the range measurement results, the carbon emission characteristic model is constructed by using the emission method, and the carbon emission characteristics of urban residential areas are extracted. The experimental results show that the proposed method can quickly and accurately extract the carbon emission characteristics of urban residential areas, and the shortest extraction time is only 0.57 min.
Keywords: Remote sensing technology; Urban residential area; Carbon emission; Feature extraction.
Special Issue on: WEECON'19 Socio-Economic and Technological Approaches towards Environmental Management
Waste to Wealth and Health: Bio-recovery and Applications of chitin and its derivatives
by Machineni Lakshmi
Abstract: The search for new molecules that are useful for human health and ecofriendly has led to the study of molecules derived from plants, animals and microorganisms. Chitin is the second most ubiquitous natural polysaccharide after cellulose on the earth, comprising repeating units of N-acetyl-D-glucosamine. However, because chitin in its natural form has high crystallinity and low solubility, its applications are limited. Modified chitin can be converted into chitooligosaccharides with varied degree of polymerization by either chemical or enzymatic methods. Even though this review has emphasized on the different chitin extraction methods, and their applications, the biological methods discussed in detail could suggest new understanding about nontoxic chitin extraction methods. In addition, an attempt has been made to highlight the recent research on their commercial applications.
Keywords: Chitin; Chitosan; CHOS; Bio-deproteinization; Bio-demineralization; Biofilm.
IDENTIFICATION OF EARTHWORM FOR SUSTAINABLE AGRICULTURE-A REVIEW
by Adeline Sneha J, Nor Hisham Khamis, Rekha Chakravarthi
Abstract: Earthworms are considered as a friend of farmer. They play a vital role in farming. They are restless creatures, which recycles the planet. When a worm is died, it decomposes into nitrogen and benefits the farming. 3000 different species of earthworms are present worldwide. Nowadays they are common prey for chemical contamination. The soil contaminated with arsenide, cadmium, nitrous oxide directly affects the growth and reproduction of Earthworm. Also, the agricultural farming today uses high quantity of pesticides to protect the crops from pest and diseases. By spraying pesticides, the life-cycle of earthworm is affected. This paper focus on detailed study of earthworm and its importance on farming.It also deals with impact of chemicals on earthworm and its side effects. This paper discusses about the identification of earthworm in farmland and various methods for enhancing the growth of worms. Therefore, density of earthworm will increase, which benefits the farmer.
Keywords: Earthworm; Earthworm Identification; Fertility of soil; Pesticides.
Special Issue on: Pollution Prevention and Environmental Sustainability for Industry
The Detection Method For Uneven Settlement Of Foundation In The Area Of Industrial Waste Miscellaneous Filling
by Hongxia Liu, Aidan Moore
Abstract: In order to overcome the problems of large error and long time in the detection process of traditional foundation subsidence detection methods, this paper proposes a multi-feature fusion based detection method for uneven foundation subsidence in the area of mixed industrial waste. The method USES wavelet transform technology to filter the ground image of the industrial waste filling area and improves the accuracy and timeliness of settlement detection fundamentally. After obtaining the optimal threshold values of different subblocks of the foundation image, combined with the multi-scale ridge edge fusion algorithm, the uneven settlement of the foundation area was detected by the feature fusion process. The experimental results show that the detection error of this method is basically kept below 4%, the detection process takes less than 50ms all the time, and the detection cost is less than 60,000 yuan, which fully demonstrates the effectiveness of this method.
Keywords: industrial waste miscellaneous filling area; uneven settlement of foundation; settlement detection; multi-feature fusion.
The Purification Mechanism Of Industrial Wastewater By Aquatic Garden Plants
by Hongbing Yu
Abstract: In order to solve the current water pollution problem caused by industrial wastewater, the purification mechanism of aquatic garden plants on industrial wastewater is analyzed and studied. The treatment process and influencing factors of plants in the purification process are analyzed separately, and the purification mechanism of aquatic garden plants on different pollutant components in industrial wastewater is derived from a theoretical perspective. In order to verify the analysis results of the purification mechanism, the actual measurement analysis experiment of the purification effect of aquatic garden plants on industrial wastewater was designed. The experimental results show that aquatic garden plants can effectively reduce the content of TN, TP, COD, NH4+-N and heavy metals in industrial wastewater, and therefore have a high purification effect on industrial wastewater. Among a variety of aquatic garden plants, water onions and Canna's purifying effect is more obvious, and the removal rate can reach 83%.
Keywords: hydrophyte; garden plant; industrial wastewater; purification mechanism.
Study on plant landscape planning method based on discrete particle swarm optimization
by Fang-lian Li, Yue-guang Xu
Abstract: In order to solve the problems of low planning accuracy and high cost in traditional landscape plant landscape planning methods, a plant landscape planning method based on discrete particle swarm optimization (DPSO) was proposed. The three-dimensional coordinate system of plant landscape planning path is transformed to determine the plant landscape planning path. The nonlinear programming mathematical model is used to constrain the plant landscape planning path, and the fitness objective function of plant landscape planning is obtained. The particle swarm optimization algorithm is used to optimize the plant landscape planning path, and the particle swarm optimization algorithm is used to improve the plant landscape planning path. The convergence was optimized to complete the plant landscape planning. The experimental results show that the accuracy of path planning is up to 98% and the aesthetic degree of plant landscape is more than 95%.
Keywords: discrete particle swarm optimization algorithm; plant landscape planning; nonlinear programming mathematical model; penalty function; fitness function.
Ecological garden plant configuration method of based on attribute analytic hierarchy process model
by Yuanchun Ding
Abstract: In order to solve the problems of poor accuracy and long time-consuming in traditional ecological garden plant configuration methods, a method of ecological garden plant configuration based on attribute AHP model was proposed. This paper analyzes the principles of ecological garden plant configuration, designs the ecological garden configuration method; selects the index factors affecting the plant configuration, constructs hierarchical structure, obtains the relative attribute measurement and measurement weight of ecological garden landscape, and analyzes the plant attribute of ecological garden; builds the directed graph, clarifies the weight relationship between plant configuration, constructs the attribute hierarchy analysis model, and adopts triangular fuzzy evaluation The price algorithm evaluates the results of plant configuration and completes the ecological garden plant configuration. The experimental results show that the accuracy of the proposed method is up to 98%, and the survival rate of plants after configuration is higher than 90%.
Keywords: attribute analytic hierarchy process model; ecological garden; plant configuration;.