bluuebunny/crossref_metadata_2025_split huggingface dataset:
Soil conditions and the iron chlorosis of mature vine
Authors: Yutsis A E , Zhelezova S V , Dammer K-H 
Published: November 2019

Abstract
Iron-deficiency chlorosis is a usual routine problem on calcareous carbonated soils of Crimea. Different reasons cause vine chlorosis: soil properties, physiological status of plants and others. It was shown that chlorosis spot in the vineyard has constant location. Chlorosis can be identified visually and instrumentally. In this study, an attempt was made to find the relationship between soil electrical resistance and the spread of vine chlorosis.
Research on Spatial Structure Evolution of Suburban Traffic Network Under the Background of Urbanization Based on Space Syntax
Authors: Zhang Chunxiao , Huang He , Cao Xingqu , Shen Guangzhe 
Published: November 2019

Abstract
In the process of urbanization, a large number of rural land in suburbs has been converted into urban construction land, and its spatial structure has undergone significant changes. This paper takes Sansheng xiang in the suburbs of Chengdu from 1985 to 2015 as the research object, combined spatial syntactic theory to study the spatial structure evolution characteristics of land in the suburbs during the urbanization. The conclusions are obtained as follows: (1) the spatial accessibility, permeability and utilization rate of the study area have been significantly improved, also the spatial form has evolved from a dendrite to a grid type. The spatial integration degree, connectivity and depth values are optimized to 2.62 times, 3.62 times, 4.52 times compared with the original. (2) The driving factors of spatial evolution mainly include: population mobility, economic scale, building area, and industrial structure, all of which show a good fit to the evolution of spatial structure. (3) In combination with the spatial syntactic theory, the spatial structure optimization micro-intervention method is proposed. By studying the fitting relationship among the spatial integration degree, the connection degree and the axial length, some inefficient space units are found. Besides, the optimization suggestion method is proposed.
Biodegradable Polymer Composite based on Recycled Polyurethane and Finished Leather Waste
Authors: Laurentia Alexandrescu , Viorica Deselnicu , Maria Sonmez , Mihai Georgescu , Mihaela Nituica , Corina Deselnicu Dana , Xioyan Pang 
Published: November 2019

Abstract
The issue of polluting waste has been addressed over the years by means of several methods: depollution, recovery by reuse and/or energy recycling and/or mechanical and/or chemical recycling. In the integrated plastic waste management concept, along with these methods are included the possibilities of reducing the quantities by using biodegradable polymeric materials. The goal paper is to recover footwear waste after use: polymer and finished leather by making new biodegradable polymeric composites. The waste is ground to 1-5 mm and compounded by melt extrusion-granulation, processable by injection into new products (footwear soles) with pre-established advanced features. Biodegradable polymer composite based on post-consumption thermoplastic polyurethane (WTPU) waste compounded with post-consumption finished leather waste, ground and functionalized. This composite will be made into a low-density product, with low cost, recovery and reuse of waste, containing both polymer and protein, and last but not least, biodegradable. The methodology for making the new materials involves the following steps: sorting waste, grinding, functionalization and compounding. These operations are easy to manage and do not involve new equipment. Compounding, the most important operation, will be carried out on a corotating twin-screw extruder-granulator with the possibility of adapting the length of the screw depending on the material (L/D-35). Waste transformation (ground and functionalized) in new value-added products will lead to remarkable improvements in the life cycle of raw materials and the sustainable use of this waste, contributing to sustainability, improving eco-efficiency and economic efficiency and reducing the “pressure” of waste on the environment.
A Study on Ecological Redline Delineation of Land Areas in Shenzhen
Authors: Yali Xu , Jiacheng Li , Wuyang Hong , Xiaoxiang Chen , Jun Yue , Xi Zhang , Tingwen Luo 
Published: November 2019

Abstract
In the context of reform in the mechanism of ecological civilization in China, delineation and management of ecological redlines is of great significance to maintaining the ecological security of the cities. The geographical focus of this study is Shenzhen – a city with obvious disparity between the state of development and level of ecological protection as well as a strong demand for ecological products. Considering having an accurate boundary of ecological redline, building an operability management system, and shaping measures for implementation and operation, this study uses ArcGIS, a tool of spatial analysis, to study the indicators, methods, and technical processes of ecological redline delineation on the city and county levels. It adopts an integrated assessment approach encompassing multiple ecological indicators and key technologies to explore the scope of ecological redline delineation. The results of this study are as follows: (1) Land delineated within the scope of ecological redline management is spread over a total of 557.47km2, accounting for 28.53% of the city area, which mainly features low mountains and hills covered with vegetation in southeastern and central Shenzhen. It effectively connects with the ecological control line. (2) Some important ecological areas are not covered within this ecological redline delineation due to relatively scattered distribution. However, these areas are a part of the system comprising a pattern of urban ecological security, ecological redline, ecological land outside the delineated redline, and greenbelts within the construction lands. (3) Within the delineated ecological redline, a total area of 9.25km2 is still allocated as construction land, mainly for linear engineering and civic facilities. Therefore, planning is required for re-greening and ecologically transforming these areas for the sake of maintaining the ecosystem.
The Relationship Between Environment Characteristics and Old Citizen’s Physical Activates in Residential Area, Harbin, China
Authors: Yang Ye 
Published: November 2019

Abstract
Walking is one of the main travel mode for old citizen (over 60 years old) in their daily life, so understanding how the environment characteristics of residential area could effect the old citizen’s physical activities could help the designer to work better on old citizen friendly urban plan. This study attempts to comprehensively and objectively research on the relationship between environment characteristics and old citizen’s physical activities in Harbin residential areas. Spatial feature and traffic management have been thought as the main determinate of walkability of urban space, however physical features and urban design details have been rarely mentioned. Old citizen’s perception has been examined in this study: 15 environment characteristics problems have been identified in the studied residential areas based on the understanding of pervious researches. Through observations and questionnaire surveys, the environment characteristics of each case study were evaluated and the physical problems were discovered. Additionally, old citizen’s perception on the identified problems and their effects on their physical activities of the studied areas were found and defined, in both high and low walkability residential area.
Research on Evolutionary Game of China’s Environmental Governance System
Authors: Zhou Lan , Lu Yang 
Published: November 2019

Abstract
The construction of environmental governance system is attracting more attention. Using game-based learning theory for reference, this paper builds an evolutionary model among central government, local government and enterprises in the context of fiscal decentralization system. The findings suggest that three parties reach an effective and stable solution under the scenario of low fiscal decentralization, active governance, and up-to-standard pollution control. Furthermore, suggestions such as a combination between governments, the increase of environmental protection expenditure and strengthening political constraints are recommended.
DOMIRISK: A User-Friendly Domino Effect Decision Support System
Authors: Yang Y , Qian Y 
Published: November 2019

Abstract
The continuous development of modern industry has potential hazard, of which domino effect is a major threat that could result in catastrophe. Moreover, domino accidents will endanger the environment and human health. Some decision support systems for preventing the domino effect have been developed, while most of them are too theoretical and have obvious limitations, such as ignoring the influence of personnel, operational, and other real factors in the actual industrial production process. This paper emphasizes the causes of potential domino accidents and the construction of the accident chain. A system called DOMIRISK is designed which can: 1) quantify the domino effect of the entire plant; 2) identify the root cause of potential domino accidents; 3) build the accident chain of domino effect; 4) assess the environmental risk of the domino accident. A chemical plant is used as an example to illustrate how the system provides practical decision support for controlling the occurrence and spread of domino accidents and protecting environment.
The Significance of Low Impact Development on Urban Water Resources
Authors: Wang Chao 
Published: November 2019

Abstract
China is a developing country suffering from severe water shortage. Although the total fresh water resources account for 6% of the total national water resources, China’s per capita water resources are only 25% of the world’s average. As a result, China is now one of the most water-scarce countries in the world. In this context, China’s urbanization level is constantly improving, and in the process of urbanization and urbanization, human social practice has an increasingly greater impact on water resources and the environment. At the same time, urban water logging and other disasters have led to a large number of loss of life and property, which has caused a series of water resources and environmental problems, causing widespread social concern. Sponge city construction is achieved through low-impact development technology. In the design, construction and management of the development process, low-impact development seeks to minimize the impact on water resources, especially to maximize the utilization and control of rain-flood resources. In order to achieve “low impact”, urban development and planning must follow the principle of respecting water resources. The core meaning of the proposal and use of Low Impact Development technology is to respect nature.
Oil displacement by aqueous solutions of surfactants at various temperatures
Authors: Zemenkova M Yu , Kuzina O A , Shabarov A B 
Published: November 2019

Abstract
To generalize the experimental data on the displacement of oil by aqueous solutions of surface-active substances (surfactants) at temperatures of 40, 60, 80 °C, we studied the influence of an additional parameter of the ratio of the work of adhesion during the displacement of oil by water to oil adhesion during the displacement of an aqueous solution of surfactant W = Ww/W. This parameter characterizes the intensity of mass transfer of oil particles from the surface of the rock using surfactants at different temperatures. The parameter W in combination with the capillary number Ca characterizes the value of residual oil saturation in oil reservoirs. A criterion equation is obtained that allows one to calculate the displacement coefficient from two dimensionless parameters: the capillary number and the relative work of oil adhesion.
Modelling the movement of a cultivating shovel in the ground
Authors: Pirogov S P , Cherentsov D A 
Published: November 2019

Abstract
The paper presents the results of the calculation of the forces acting on the cultivating shovel when moving in the ground. For research, the finite element method implemented in the ANSYS program was used. The tasks of constructing a grid model of the ground were solved, the horizontal component of the force of the impact of the ground when moving at different speeds was determined.
Planning the activities of the utility vehicles department in the structure of a joint stock company
Authors: Chizhevskaya E L 
Published: November 2019

Abstract
Planning the activities of a structural unit is one of the sources for finding reserves to improve the efficiency of the company as a whole. The correctness of the methods used, the completeness of the source data, the software used is an incomplete list of factors affecting the reliability of the plans of the company’s departments, which in turn make up a plan of the organization’s activity as a whole. The article provides an overview of the planning process for the Utility Vehicles Department, considers planning tools, the possibility of increasing the efficiency of the process and achieving planned indicators.
Analysis of the development of BS10 oil reservoir at the Savuyskoye field
Authors: Ogudova E V , Aleskerova Z S 
Published: November 2019

Abstract
Based on the analysis of oil production at the BS10 formation of the Savuiskoye field, the article provides the calculation and justification of the necessary filter permeability which limits sand production in the well during operation of wells with weakly cemented unstable reservoirs.
Concept of eliminating past environmental damage in the area of mining industry of the North Caucasus
Authors: Alborov I D , Tedeeva F G , Gutsaev F Kh , Gridnev E A , Tebloev M M , Tsgoev T F , Berkaeva A K 
Published: November 2019

Abstract
The article presents the results of many years research on the surface infrastructure influence of mining industry of the North Caucasus on biosphere components in its area of activity. Considering that industrial mining of ores on the eastern slope of Caucasus Mountains (Sadonskoe silver-zinc deposit) began in the middle of the nineteenth century by Belgian industrialists and continues to the present. The accumulation of heavy and toxic metals in the soil horizon is shown (2.5–3.5 MAC), creating a real threat to health and livelihoods of the population living here. Fragmentary variability of landscapes, leading to the depletion of biological diversity, up to the disappearance of its various types has been revealed. According to the intensity of dust emission and the share of negative sources participation in the overall balance of dust pollution of the area atmosphere, it has been found that man-made deposits of ore processing waste are potential foci of catastrophic processes in the destruction of fencing dams by mountain streams, as they are located on terraced areas of mountain valleys. It is analytically established that safety, both general and environmental, can be achieved only by eliminating these sources from potentially dangerous places.
Methodology of geochemical search for hydrocarbon deposits in lithological complexes of North-Yarudeysky rampart in Western Siberia
Authors: Dubrova S V , German V 
Published: November 2019

Abstract
The technology of passive adsorption of hydrocarbons in soil-ground gases (more than 80 hydrocarbon compounds from ethane C2 to C20 phytane) with the use of special sorbent modules is a new and very effective method for oil and gas fields’ exploration. This technique being relatively inexpensive and easy to use for fieldwork is applied in almost all oil and gas regions of the world. In recent decades it has also been effectively used in Russia (Volga-Ural, Timan-Pechora, West Siberian and other oil and gas basins). The article presents the outcomes of geochemical explorations at the Shuginsky site of the Yarudeyskaya license area of the Nadym district in Western Siberia.
Physico-chemical analysis of the sections of the ternary BiCl3-LiCl-AgCl systems
Authors: Dzeranova K B , Yesieva L K , Ter-Barsegova I Ya , Agayeva F A , Bigayeva I M 
Published: November 2019

Abstract
Recently, the use of halogens and their compounds in industry and the national economy has increased. The halides of the ternary systems Ag – Bi – Li of are insufficiently studied. So, to create semiconductor materials on their basis, the analysis of this system has become very important. In this paper, the character of interaction of the binary sections in the BiCl3-LiCl-AgCl ternary system is studied through a complex of methods of physical and chemical analysis, precisely by differential thermal and X-ray phase analyses. The analysis of the obtained data allowed to establish the eutectic character of interaction in the LiCI-AgBiCI4system. It was confirmed that the addition of AgBiCI4 lowers significantly the melting point of the second component. Also, it was defined as the eutectic character of interaction with limited solubility of the components in the AgBiCI4-LiBiCI4 and AgBiCI4-LiBi4CI13 systems.
Analysis of the use of downhole pumping equipment (DPE) at the Tevlinsko-Russkinskoye field
Authors: Gadzhiev M D 
Published: November 2019

Abstract
The problem of operating ECP in the zone of low production rates is very relevant for a number of leading oil companies, since most of the wells are operated by such pumps. The adopted values of the boundaries of the working part of the characteristics of the pump are indicators: 0.75–1.25. According to preliminary estimates, 31 % of the ECP at the Tevlinsko-Russkinskoye field are operating outside the operating range, which leads to a decrease in the operating efficiency of downhole pumping equipment (DPE). The average well production rate for oil was 8.6 tons per day, for liquids – 89.5 tons per day, for water content – 90 %. This article presents an analysis of the ECP operation in the Tevlinsko-Russkinskoye field. The work describes the complications of the DPE when it is used beyond the right and left borders of the working area. On the basis of pilot field works, the possibility of using alternative DPE has been described. At the end of the article highlighted the main problems relating to the operation of wells and equipment.
Activities and technical solutions for ecological management of the city Vladikavkaz
Authors: Kasharin D V , Meisner (Kovaleva) T N , Kosichenko M Yu , Kovalev N A 
Published: November 2019

Abstract
The article is devoted to the activities ensuring city of Vladikavkaz ecohumanisation by engineering protection and development of recreational areas. The analysis of natural and climatic conditions and social aspects of the city deveopment. Technical solutions and their justification on the example of the right-bank territory of Vladikavkaz, as well as the development of Park areas are proposed.
Technical support of the power lines design - as a linear structure in difficult mountain conditions
Authors: Kortiev L I , Klyuev R V , Kulumbegov R P , Kortiev A L , Bosikov I I , Gavrina O A , Z Madaeva M 
Published: November 2019

Abstract
The article highlights the process necessary at the present stage of organizing the scientific and technical support of projects for the construction of overhead power lines (OPL) in difficult mountain conditions. The development of mountain areas is associated with overcoming various technical, technological and organizational difficulties, sometimes reducing the expected economic, environmental and social benefits. In order to obtain the maximum effect from the activities carried out during the construction of power lines, the article substantiates the method of scientific and technical support - an expert opinion of a scientist on the safe operation of power lines, which will provide economic and social benefits to society.
Dust content in the air: A case study of the Afanasyevsky open pit mine (Russia)
Authors: Lemanova S A 
Published: November 2019

Abstract
According to experts, the world consumption of mineral raw materials and the rocks extraction have reached about 12 and 100 billion tons per year, respectively. Overall Russian coal production accounts for 259.9 million tons (according to the Ministry of Energy of the Russian Federation and the ‘Rosinformugol’ agency), metallic ores are estimated at 230 million tons, and building materials reach 1.4 billion tons. The overall growth in mineral production and capacity of ore producers cause an increase in the negative environmental impact of mining extraction and processing. It should be taken into account that due to the depletion of reserves of rich mineral raw materials, the volume of mined rock mass and the amount of processing waste of mineral raw materials increase. It results in the formation of mine dumps, consisting rocks, ore beneficiation wastes, ashes, slags, and sludge. Research data describe critical environmental situation within the mining enterprises, and especially mine dumps, as a result of massive dust emissions. In addition, there is a tendency to further environmental degradation, due to the increase in production capacity without complying with effective measures to reduce dust emissions. Considering the fact that fine particles are priority pollutants in the extraction and processing of mineral resources at mining enterprises, it is necessary to develop new environmentally efficient and economically viable methods of dust suppression.
Geo-ecological problems of artificial reservoirs of Kalmykia (case study of the Tsagan-Nur reservoir)
Authors: Lidzhieva N Ts , Ulanova S S , Ubushaeva S V , Ovadykova Zh V 
Published: November 2019

Abstract
The article presents results of six-year research on the Tsagan-Nur reservoir located on the Caspian lowland. Quantitative values of several indicators were obtained: hydrological (level and area of the reservoir), hydro-chemical (mineralization, chemical elements), environmental (ecotone water-land system). The methodological basis is the ecotone concept according to which there are blocks (areas) experiencing effects of the water body. Analysis of space information showed a significant reduction in the water surface area from 55.4 km2 (1978) to 6 km2 in 2018. Mineralization of the reservoir water increased 7 times compared to the average long-term data (10-12 g/l) and amounted to 70.24 g/l in 2018. Drying and deterioration of the water quality increase the saline area and decrease biological diversity of the flora and fauna, make it impossible to use waters of the reservoir for economic purposes.
Environmental problems in the Kazakhstan coal industry and their solutions
Authors: Alimbaev T A , Mazhitova Zh S , Omarova B К , Nurkina Zh B 
Published: November 2019

Abstract
This article discusses development of the coal industry in Kazakhstan after the 1990s and environmental problems caused by the coal industry. Along with industrial development, an increase in coal production, the level of environmental pollution is increasing. The authors say that transition to the market economy increased the economic potential of the republic, including coal companies, and caused an environmental crisis. The problem can be solved by maximizing the economically viable use of all types of waste and resources of the developed coal fields. These activities will solve geo-ecological problems, improve the environment through the greening of economic activities focusing on the needs of future generations. The methodological basis of the research is scientific objectivity which made it possible to analyze the subject taking into account economic changes in the industry.