bluuebunny/crossref_metadata_2025_split huggingface dataset:
Integrable discretizations for classical Boussinesq system
Authors: Huang Wenhua , Xue Lingling , Liu Q P 
Published: December 2020

Abstract
In this paper, we propose and study integrable discrete systems related to the classical Boussinesq system. Based on elementary and binary Darboux transformations and associated Bäcklund transformations, both full-discrete systems and semi-discrete systems are constructed. The discrete systems obtained from elementary Darboux transformation are shown to be the discrete systems of relativistic Toda lattice type appeared in the work of Suris (1997) and the ones from binary Darboux transformations are two-component extensions of the lattice potential KdV equation and Kac–van Moerbeke equation. For these discrete systems, their different continuum limits, various interesting reductions and Darboux–Bäcklund transformations are considered. Some solutions such as discrete resonant solitons are also presented.
Exponentially distributed noise—its correlation function and its effect on nonlinear dynamics
Authors: Farah George N , Lindner Benjamin 
Published: December 2020

Abstract
We propose a simple Langevin equation as a generator for a noise process with Laplace-distributed values (pure exponential decays for both positive and negative values of the noise). We calculate explicit expressions for the correlation function, the noise intensity, and the correlation time of this noise process and formulate a scaled version of the generating Langevin equation such that correlation time and variance or correlation time and noise intensity for the desired noise process can be exactly prescribed. We then test the effect of the noise distribution on a classical escape problem: the Kramers rate of an overdamped particle out of the minimum of a cubic potential. We study the problem both for constant variance and constant intensity scalings and compare to an Ornstein–Uhlenbeck process with the same noise parameters. We demonstrate that specifically at weak fluctuations, the Laplace noise induces more frequent escapes than its Gaussian counterpart while at stronger noise the opposite effect is observed.
The luanzhu city in hebei province soil fertility quality evaluation
Authors: Lilin  , Lizhao  , Zhenzhihua  
Published: December 2020

Abstract
This research work in the quality evaluation of soil fertility and soil testing formula, on the basis of continue to enlarge the area of soil soil test and sample points, get more soil nutrient material, based on the test results, combined with previous data, the system analysis to the state of the luanzhou city in hebei province the current situation of the agricultural land soil fertility quality.
Research Progress of Regulated Deficit Irrigation Technology in Watermelon (Citrullus lanatus) Cultivation
Authors: Wang Zeyi , Wang Yingying , Zhang Hengjia 
Published: December 2020

AbstractRegulated deficit irrigation (RDI) technology provides a new way to solve the contradiction between agricultural water supply-demand and the shortage of water resources. The paper briefly introduces the concept of RDI technology and its water-saving mechanism, and then describes the specific application of RDI technology in watermelon planting and the impact of RDI on watermelon growth dynamics, photosynthetic physiological characteristics, water productivity, and quality. It is concluded that timely and appropriate RDI of watermelon can not only improve the quality of the watermelon and maintain or even increase the yield, but also increase the water use efficiency (WUE). Finally, the main problems existing in the watermelon RDI technology are summarized, and its application is prospected, in order to obtain new results in the follow-up research of watermelon RDI.
Risk Mitigation Measures for Coronavirus Disease 2019
Authors: Lu Yujia , Zhou Ruke , Zhang Heran 
Published: December 2020

Abstract
Since December 2019, Coronavirus disease 2019 (COVID-19) broke out in China and soon spread worldwide. The once-in-a-century pandemic brought unexpected effect on both economy and health globally. Up to August 12, 2020, more than 20 million cases have been diagnosed across nearly 200 countries. In some countries such as the United States and India, confirmed cases are still increasing substantially. However, China, as the most severe one in the early stage of the outbreak, has curbed epidemic and saved lives rapidly. The intention of this review is to discuss effective risk mitigation measures, with the main focus on those applied in China, aiming to provide actionable and achievable guidance for the fight against Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) in the world. We analyzed, evaluated and summarized the crucial strategies, including risk communication, quarantine and isolation, vaccine and antiviral administration. The above risk mitigation measures have proven to be effective in fighting against the epidemic in China. In light of specific conditions, we believe these effective risk mitigation measures can be well applied in other countries. In this paper, we will analyze the solution to control the worldwide pandemic and even the epidemic occurring in the future.
A review of Corona Virus Disease 2019 (COVID-19)
Authors: Xie Renlong 
Published: December 2020

Abstract
Covid-19 is a novel infectious disease caused by coronavirus with symptoms of fever and cough. It is caused by a novel coronavirus (SARS-CoV-2) in Wuhan, China, in December 2019. There are already some medical records in most countries in the world, which has greatly affected the development of the domestic and international economy and social order. The World Health Organization (WHO) has declared a continuous outbreak as a global public health emergency. Since research on it is still in its infancy, no treatment has been found to treat the disease. In this review, we will summarize the clinical manifestations, transmission routes, detection methods, treatment and prevention methods of COVID-19 and future development trends, and may provide some reference for the treatment of the disease.
The Technical Function and Application Exploration of visual concept in environmental engineering projects
Authors: Fang Yin , Zheng Gong , Bo Gu 
Published: December 2020

Abstract
The industrial economy has greatly improved China’s overall strength and the quality of life of its people has also improved significantly. However, the fact that human health is threatened by the natural environment caused by industrial economies cannot be underestimated. In order to solve this universal problem affecting all mankind, different countries have put forward the concepts of energy conservation, emission reduction, ecology and sustainable development, and reached consensus around the world. The paper will study visual concepts to better promote environmental art design for the service of society.
Analysis on the Green Development Model of Urban Agglomeration in China
Authors: Zhang Fang 
Published: December 2020

Abstract
Urban agglomeration is an important carrier to promote China’s economic development. The current development model of urban agglomerations in China has problems such as lack of overall planning, unbalanced development, poor ecological environment, and low quality of human settlements. Based on the analysis of the current development problems of Chinese urban agglomerations, the research puts forward the content of the generalized green urban agglomeration system. The research results have certain theoretical value and practical significance for promoting the transformation of urban agglomeration from traditional to green.
From Green to Healthy, Analysis of Humanistic Strategy under Ecological City Space
Authors: Pan Hongyan , Tang Ziyi , Han Jihong , Sun Hua 
Published: December 2020

Abstract
In recent years, the global ecological environment has further deteriorated. After frequent pollution and public health incidents, we all have higher expectations for the cities in which we live. With the vigorous promotion of green ecological urban areas in China, the country is paying more and more attention to the construction of people’s cities such as ecological environment and healthy cities. This paper constructs a new generation of people-oriented ecological city through three spatial levels of “green and healthy building cells–green and healthy community units–green and healthy urban areas”. Based on the analysis of standards and objectives under different spatial levels of the city, this paper puts forward corresponding human-oriented objectives strategies such as safety, health and wisdom under the concept of “green and healthy”, pays attention to people’s green livability, health and safety in urban areas, communities and architectural spaces, and provides support for the development of the city in the future.
Spatial and temporal variation Trend Analysis of vegetation cover in Urban agglomeration of Pearl River Delta from 2000 to 2015
Authors: Zhang Dong , Wu Fengzhi , Fang Yanzhuo , Lu Ni 
Published: December 2020

Abstract
Based on MODIS NDVI remote sensing data, the methods of regression analysis, CV stability analysis, Hurst exponent analysis are used to invert the spatio-temporal variation trend of vegetation cover in the Pearl River Delta region from 2000 to 2015. On this basis, the future change trend of vegetation cover was predicted. The results indicate that (1) the vegetation coverage in the Pearl River Delta was on a rising trend in general from 2000 to 2015 (0.029/10 years). (2). The vegetation change in The Pearl River Delta region was mainly significantly improved (39.73%), and significantly degraded and slightly degraded areas accounted for only 13.22%, which were staggered with significantly improved regions. (3) Degree of vegetation cover fluctuation in cities and surrounding areas has significant spatial consistency with degraded areas of vegetation cover, which indicates that there is a certain correlation between the change of vegetation cover around the city and human activities. (4) Combined with the analysis of future and past trends, the condition that vegetation cover firstly degrades and then improves will occur. While vegetation degradation may occur in non-urban concentrated areas without good ecological planning. The research results will be helpful to understand the trend and spatial distribution of vegetation in the Pearl River Delta region.
A Review on Green Consumption
Authors: Bian Tiao 
Published: December 2020

Abstract
In environmental protection activities, consumers play an increasingly important role, and green consumption is the embodiment of environmental protection behavior in the consumption field.Although there have been some studies on green consumption at home and abroad, few studies systematically review the related studies on green consumption.On the basis of clarifying the basic concept of green consumption, this paper combs the relevant literature of green consumption from the aspects of the influencing factors of green consumption and the causes of the attitudinal and behavioral differences of green consumption, and discusses the countermeasures for the development of green consumption from the perspectives of consumer enterprises and the government.Finally, the shortcomings and possible future research directions are summarized.
Comparison and analysis of several medical waste treatment technologies
Authors: Xu Lufeng , Dong Kun , Zhang Yiming , Li Haixiang 
Published: December 2020

Abstract
Medical waste is a kind of special waste with great harm. Since the 1950s, the treatment of medical waste has attracted widespread attention from all over the world. At present, scholars at home and abroad are increasingly rich in research on medical waste treatment technology and have achieved certain research results. This article comprehensively compares and analyzes the technical influencing parameters, advantages and disadvantages of incineration treatment, pressure steam sterilization treatment, chemical treatment, microwave treatment, plasma treatment and other medical waste treatment methods, and emphasizes that high-temperature pyrolysis incineration treatment technology has reduced weight and is harmless. This is the current direction of domestic medical waste treatment research and development.
Research Framework of Fresh Agricultural Products Logistics Network Optimization Based on Cold Chain
Authors: He Xu-Dong 
Published: December 2020

Abstract
The paper comprehensively integrates multidisciplinary theoretical knowledge such as complexity network, game theory, ecology, system coordination optimization theory, using mathematical analysis and system model construction and other tools to carry out structural analysis and operation mechanism research on agricultural product cold chain logistics ecosystem. The paper explains the interrelationship between the micro-behaviors of the node members of the cold chain system and the evolution of the macro-structure of the system, reveals the complexity of the evolution of the cold chain logistics ecosystem, and studies the impact of the system coordination mechanism on the optimal decision of the system members. The agricultural product cold chain ecosystem network will be comprehensively coordinated and optimized, thereby ultimately improving the overall performance of the cold chain system.
Prediction of construction waste in representative cities of North and South based on Grey Model
Authors: Wang Peng Fei , Liu Yang , Gao Si Yan , Luo Shaohua , Jia JingJue , Yang Heng , Liu XiaoYu 
Published: December 2020

Abstract
With the orderly promotion of construction waste treatment in China, the process of construction waste reduction is also gradually launched. At present, the production of construction waste in many cities is in the historical high decline stage. In order to better plan the capacity of urban construction waste treatment and recycling, it is necessary to forecast the output of construction waste in a period of time in the future. Based on the historical data from 2012 to 2018 in the statistical yearbook, this paper forecasts the construction waste production from 2020 to 2023 in Shenyang Dalian, the core city of Northeast China, and Guangzhou and Shenzhen, the provincial capitals of Guangdong Province. By comparing the growth trend of population with the growth trend of construction waste, it is found that the growth of construction waste is along with the increase trend of population. Meanwhile, four suggestions for urban waste disposal are provided.
Research on fine management of construction project based on BIM5D technology
Authors: Wu Bei , Cai Yuping , Shi Yansiyi , Gao Zhanwang 
Published: December 2020

Abstract
On the basis of the original BIM technology, the concept of continuous upgrading and development, increasing progress and time has become the latest BIM5D technology, which can not only simulate the appearance of the actual project after completion and make it visually displayed, but also increase the management of progress and cost.By using the latest BIM5D technology, the construction project can shorten the construction period, reduce the cost and ensure the quality, improve the working efficiency of the staff and enhance the competitiveness of the enterprise. Therefore, it is of heart value to study how to combine the BIM5D technology with the detailed study of construction project and how to manage it.
Exploration and Analysis on the way of building green lifestyle
Authors: Yang Lijing , Li Xiaochun 
Published: December 2020

Abstract
The construction of green lifestyle is an important part of practicing General Secretary Xi Jinping’s thought of ecological civilization, and is the content of returning to human ecological life. Reverence for nature in the field of subject cognition is the ideological premise of building a green lifestyle. It is the material foundation of Luther’s lifestyle to integrate the concept of “clear water and green mountains are gold and silver mountains” into the increase of productivity. It is the value pursuit of green lifestyle to focus on people’s free and all-round development. In face of a series of world history problems, building a green lifestyle is the manifestation of “Chinese wisdom”.
Analysis on the New Green Total Factor Productivity of Transportation Industry
Authors: Su Ruijie 
Published: December 2020

Abstract
Combined with the new requirements of high-quality economic development for the transportation industry, this paper improves the total factor productivity(TFP) index system from the perspective of economic, social and environmental factors. This paper selects panel data of 30 provinces and cities in China from 2007 to 2018, uses the Super-efficiency Slack Based Model and GML index to make a comprehensive evaluation and analysis on the change of TFP in China’s transportation industry. The empirical results show that the new green TFP can more objectively reflect the economic growth and technological progress of the transportation industry after the environmental factors and social costs are included in the evaluation system. During the sample study period, the TFP of the transportation industry shows a trend of first decreasing and then significantly increasing. Moreover, the empirical results varies significantly among provinces and regions, and the TFP value of the eastern region is obviously better than that of the central and western regions. Finally, this paper gives policy suggestions on how to promote the high-quality development of transportation industry in different regions.
Research on Remote Sensing Feature Selection and Information Extraction of Urban Construction Waste Based on Jilin-1 Image
Authors: Hong Shu , Chen Qiang , Jia Ziyi , Li Yuanyuan 
Published: December 2020

Abstract
Construction waste generally refers to the waste generated by man-made or natural factors such as new construction, demolition, and repair. It has many characteristics such as discrete distribution, various types, and frequent changes. Conventional survey methods are difficult to obtain construction waste location information quickly and accurately, while information extraction methods based on high-resolution remote sensing images can efficiently acquire construction waste information in a large area. Therefore, this paper uses the domestic Jilin-1 satellite (JL-101A) remote sensing image, based on multi-scale segmentation, and through the method of object-oriented remote sensing feature recognition. This paper regards the Qianxinzhuang Village in Daxing District, Beijing as the study area. And it takes research on information extraction of construction waste in cities. The results show that the optimal segmentation scale of the study area is 74; the overall accuracy of the object-oriented knowledge rule classification method is 88.0%, and the Kappa coefficient is 83.6%. The results show that the object-oriented method based on the domestic Jilin-1 satellite is feasible for information extraction of construction waste, and it has certain significance for the management of construction waste.
Research on the Legitimacy Acquisition of Reverse Logistics for Pharmaceutical Enterprises
Authors: Luo Yumei , Wang Guiping , Li Yuwei 
Published: December 2020

Abstract
How to deal with the recycling of waste drugs, reduce the waste of social resources and environmental pollution, and promote the sustainable development of society and ecology, has become a social concern. But so far, due to the lack of the legitimacy of reverse logistics of waste drugs, pharmaceutical enterprises are faced with many obstacles to realize the business. Based on legitimacy theory, this study adopts panel discussion to identify three types of legitimacy: cognitive, pragmatic and moral, and their importance in the implementation of reverse logistics. We further analyze how pharmaceutical enterprises acquire these legitimacies. The study found that moral legitimacy is the most important and should be acquired first, and then cognitive and pragmatic legitimacy.
Study on Ecological Environment and Ecological Planning of Small Summer Resort Based on User Experience
Authors: Li Ming 
Published: December 2020

Abstract
With the rapid development of tourism, eco-tourism has become an important development direction of tourism. The tourism resources and environmental conditions of small summer resorts determine that small summer resorts are ideal places to develop ecotourism, but the ecological environment of small summer resorts is extremely fragile. Therefore, in the development of ecotourism, the development of small summer resorts must take the protection of ecological environment and ecotourism resources as the premise and the development of ecotourism products as the basic idea. This paper attempts to study the ecological environment and ecological planning of small summer resorts from the perspective of user experience. This paper analyzes the ecological aesthetic characteristics of small summer resorts from the aspects of natural landscape, landscape architecture and ecological environment, in order to broaden the research horizon of small summer resorts. Especially, the plant arrangement and management of small summer resorts are the key to protect the ecological environment of small summer resorts, and must take into account the landscape aesthetics and the natural laws of the ecosystem.
Optimization of defluorination and iron reduction effect of manganese-loaded activated alumina by Response Surface Methodologyology
Authors: You Kun , Gao Yujia , Fu Jinxiang , Kang Ning , Gao Liansong 
Published: December 2020

Abstract
Influenced by geological environment, both fluoride ion and iron ion exceed the standard in underground drinking water sources in some areas. Aiming at this problem, the experiment was designed by Response Surface Methodologyology(RSM). With the goal that fluoride ion in the effluent meets the Standards for Drinking Water quality (GB 5749-2006) and the concentration of iron ion in the effluent drops significantly, the adsorption time, pH value and temperature were taken as independent variables, and the primary and secondary relationship of influencing factors on fluoride and iron reduction of manganese-loaded activated alumina was explored, then the process parameters were optimized. The remarkable relationships are AF(adsorption time)>BF(pH value)>CF(temperature), BFe(pH value) > CFe(temperature)>AFe(adsorption time).Under the conditions of adsorption time 8h, pH value 4 and temperature 25°C, when the mass concentrations of iron and fluorine in raw water are 2mg/L, the removal rates of fluoride and iron can reach 68% and 59.5%, and the mass concentrations of effluent are 0.61mg/L and 0.81mg/L, respectively.
A dimensionality reduction method of power load data based on the combination of VMD-OMP-Kmeans
Authors: Li Tong , Song Jinliang , Chen Jian , Tong Haosong , Jia Cui , Wang Anni 
Published: December 2020

Abstract
With the power data becoming more and more complex, it is of great significance to reduce the dimension and reconstruct the power data for the subsequent processing and application of power big data. This paper presents an algorithm based on variational mode decomposition (VMD) decomposition and orthogonal matching pursuit (OMP) reconstruction to reduce the dimension of power load data. Firstly, VMD method is used to decompose and filter the power load data; Secondly, K-means clustering algorithm is used to synthesize the decomposed data mode into a cluster center data set. Then, the data set is used as a dictionary; Thirdly, an OMP algorithm is proposed to select the elements to be reconstructed in the dictionary. And the corresponding data weights are given to reconstruct the load data with high-precision. As a result, the dimensionality of massive load data is reduced automatically. Finally, this paper builds a flexible load data dimensionality reduction model based on VMD method to verify the proposed method.