bluuebunny/crossref_metadata_2025_split huggingface dataset:
Bibliometric Analysis of Research on the Water and Sediment Environment in the Middle  Lower Changjiang River Basin
Authors: Guo Ziyang , Wang Dianchang , Zhang Lei , Huang Hai , Wang Dayu 
Published: March 2021

Abstract
To elucidate research progress, hotspots, and trends regarding the water and sediment environment in the Changjiang River Basin, a bibliometric analysis of research published on the water and sediment in the middle-lower reaches of the Changjiang River, from 1991 to 2020, was conducted, according to the Web of Science Core database. With regard to the number of papers, distribution of research institutions, tracking of research hotspots, related disciplines, highly cited literature, etc., a comprehensive statistical analysis was conducted to investigate the research characteristics, research status, and development trends of the water & sediment environment in the middle-lower section of the Changjiang River. Combined with the latest trends in water and sediment environment research, important future research directions were investigated. The results indicated that, among the literature, the Chinese Academy of Sciences(CAS) was the largest contributor to study on the water and sediment environment of the Changjiang River, followed by universities along the Changjiang River. Chinese scientific research institutes paid the most attention to changes in the water and sediment environment of the Changjiang River and cooperated on an international level with other countries. From the perspective of discipline distribution, the number of papers on ecological environment was the highest, followed by that on geological environment, water resources, engineering, and oceanography. The amount of research conducted on water and sediment transport, riverbed change, water pollution, and other issues was relatively high. According to the highly cited literature, water contamination and sediment were the main concerns. Combined with high-frequency keywords — and by consulting the relevant literature — this paper presented the hot spots of the water and sediment environment in the middle-lower reaches of the Changjiang River. It is determined that the implementation of water conservancy projects in the upper reaches of the Changjiang River has changed the path, release mechanism, and role of phosphorus, as well as the ecological environment of the Changjiang River Basin and its estuary. Change of phosphorus flux and its effect on environment are one of the most important directions for future water and sediment environment research.
A Simplified Calculation Formula for Horizontal Bearing Capacity of Micro-piles Foundation
Authors: Liu Fuhai , Hou Zhongwei , Kong Fanli , Zhang Jing , Zu Jianquan , Li Yangyang , Zhang Ying , Feng Kai , Zhang Mingxing 
Published: March 2021

Abstract
When m value is above 21, If the horizontal load has not reached the design value of the theoretical ultimate bearing capacity, the foundation pile will first appear bending failure. That is to say, when m value is greater than 21, the horizontal bearing capacity of pile group bearing platform foundation begins to depend on the bending strength of pile itself. The ultimate horizontal bearing capacity of pile group bearing platform foundation in actual engineering has been difficult to reach the ideal design value。 When the value of M is less than 21, the actual horizontal ultimate bearing capacity is consistent with the theoretical calculation, when the m value is greater than 21, the actual horizontal ultimate bearing capacity can be calculated according to the simplified formula proposed in this paper.
The Influence of Styrene/butadiene Ratio on the Self-assembly Behavior of SBS Modified Asphalt
Authors: Yu Caihua , Hu Kui , Chen Yujing , Li Qi , Zhang Taoli , Chen Guixiang 
Published: March 2021

Abstract
This work using molecular dynamic simulation to explore the micro mechanism of Styrene-butadiene-styrene (SBS) with light components (aromatics and saturates). The results indicate that the adsorption area decrease with the increase of S/B ratio. And with the increase of temperature, the adsorption area first increased and then decreased. Rutting factor experiments show that the rutting factor gradually decreases with increasing temperature and decreases with increasing S/B ratio, which is consistent with the findings of molecular dynamics simulations.
Data Prediction Model Based on LSTM Neural Network in Bridge Health Monitoring System
Authors: Xiao Shihui , Qiao Shengfang , Chen Hang , Liu Xi , Li Yue , Tang Mengxiong , Hu Hesong , Li Gaotang 
Published: March 2021

Abstract
The abnormal value was common in bridge health monitoring system. The prediction model based on LSTM neural network in bridge health monitoring system was studied in this paper. The modeling process was discussed about LSTM neural network model. The LSTM neural network model was also used to analysis the actual data in bridge. The results indicated that the prediction accuracy of LSTM model was high. Thus, the LSTM neural network could be used to analyze and predict data in bridge monitoring system.
Application of Dual-photothermal Imaging Technology in Leakage Detection of a Large-Scale Pool Structure
Authors: Li Weiguang , Pan Yi , Wang Shudong , Deng Haidong , Bian Decun 
Published: March 2021

Abstract
The leakage of reinforced concrete has been a key factor to affect the quality of waterproof structures, and the leakage detection has been the focus and difficulty to be considered in waterproof structures. Aim at this situation, based on a practical project as a case, an infrared thermal imaging nondestructive detection (ITID) technology was applied to the leakage detection of a reinforced concrete pool structure (RCPS) in this study. The dual-light infrared thermal imager (ITI), based on unmanned aerial vehicle (UAV) platform, was used to detect the leakage of external wall of the structure. The effectiveness and reliability of leakage detection were analyzed and verified for ITID technology applied into RCPS. Results show a good detection effect is obtained, and a new choice for detecting the leakage of RCPS is proposed.
Analysis of Seepage Law of Precipitation in Horizontal Wells with Low Permeability Formation
Authors: He Jibin , Li Guowei , Yu Li 
Published: March 2021

Abstract
Based on the euler model of multiphase flow in FLUENT and standard k-epsilon model, considering the influence of negative pressure inlet position (pump position) and nitial water head height (water head thickness), a 3d Pipe flow-seepage coupling pumping model for horizontal wells is built and calculated iteratively. On this basis, a detailed study is carried out on how to improve the fluid collection efficiency of horizontal wells. The results show that: (1) the fluid velocity at the negative pressure inlet increases as the pressure inlet location decreases from the top of the horizontal well to the heel, in the process of the depth change from heel to toe in the horizontal section, the fluid velocity at the negative pressure inlet increases first and then decreases; (2) the pressure increases in a certain proportion with the increase of the initial water head (that is, the thickness of water layer), and then the efficiency of horizontal well is improved; (3) Combined with numerical simulation analysis, in the model experiment, fluid flow causes uneven distribution of sand around the horizontal well, leading to a certain degree of pore annihilation, which causes pressure fluctuation along the horizontal well and reduces the production efficiency.
Application Prospect of Energy Cyber-Physical Systems in Operation Optimizing of Wet Flue Gas Desulfurization
Authors: Yang Yonglong , Su Qiufeng , Wang Jinxiu , Liu Xiaomeng , Zhang Zhizhong , Zhu Yue 
Published: March 2021

Abstract
Limestone-gypsum WFGD is the most widely used to control SO2 emission of coal-fired power plants in China. Although SO2 and a variety of pollutants can be efficiently removed by WFGD. The WFGD has great potential in controlling SO2 emissions and saving energy and reducing consumption due to the influence of operating conditions of coal-fired power plants after ultra-low emissions. In order to explore and analyse the feasibility of e-CPSs in operation optimizing of WFGD. The concept of e-CPSs is introduced systematically. Then the main building blocks of e-CPSs applied to WFGD are described in detail. The existing problems of WFGD are analysed. The operation optimizing method of WFGD based on e-CPSs is introduced. E-CPSs as a new more efficient and reliable intelligent control system. The prospect and benefit of its application in WFGD of coal-fired power plant are discussed in this paper.
Complexity and specifics of elimination of emergency spills of light hydrocarbons in offshore fields
Authors: Bogatyreva E V , Vorsina G D 
Published: March 2021

Abstract
This paper describes the problem and complexity of elimination of gas condensate spill in non-shelf fields. The problems and specifics of emergency gas condensate spill managing are identified. They demonstrate a need for development of a special spill response strategy. The gas condensate spill simulation was performed using the PISCES II software. A summary table of results is presented, physical and chemical properties of gas condensate were analyzed. Relevant conclusions have been drawn.
Methodological bases for evaluating the effectiveness of Arctic field development
Authors: Plenkina V V , Osinovskay I V , Mamaeva A A 
Published: March 2021

Abstract
The article reveals the methodological foundations for a comprehensive assessment of the effectiveness of the development of deposits in the Arctic shelf. On the one hand, the assessment assumes, based on the use of a multicriteria approach, ranking the priority of field development, on the other hand, the formation on its basis of a strategic model for managing the oil and gas complex, taking into account the development of Arctic fields. The authors emphasize the advisability of conducting a comprehensive assessment in relation to the development of the respective region. The list of indicators considered by the authors, which forms the basis of the multicriteria model, is open and can be adapted to the purposes of the assessment, as well as the scope of the results obtained. The methodological approach proposed by the authors can serve as an express assessment of the effectiveness of the development of fields in the Arctic. The classic matrix of the Boston Consulting Group, which takes into account the level of efficiency from the development of the Arctic shelf fields, has been chosen as a tool for forming a strategic management model.
Studying the factors affecting the navigation duration along the Northern Sea Route
Authors: Tezikov Aleksandr , Ol’Khovik Evgeniy 
Published: March 2021

Abstract
The problems of year-round navigation in the water area of the Northern Sea Route are considered. The study results are obtained at the Admiral Makarov State University of Maritime and Inland Shipping within the framework of the “Hydrographic support of the Northern Sea Route” scientific school in two main interrelated directions. The first direction is devoted to the study of the main natural - climatic and navigational - hydrographic factors affecting the navigation conditions. The second direction is focused on the collection and analysis of statistical information on the ships movement parameters and on the substantiation of the year-round navigation possibility in all waters of the Arctic Seas and Polar waters. The main trends of changes in the fleet structure, the conditions of ships navigation and the development of the shipping routes network in the Arctic seas over the past ten years are noted. Particular attention is paid to the studies results related to the development of the shipping routes network on the eastern sector of the Northern Sea Route and the prospects for year-round navigation of ships in the Laptev and East Siberian Seas.
Recent trends of human presence in the Arctic area (as exemplified by Murmansk region, Russia)
Authors: Belevskikh Tatyana , Ivanova Medeya 
Published: March 2021

Abstract
Arctic area is a particularly extreme territory in terms of natural and climatic conditions for life and human activities. The major reason for a significant part of the Arctic population to permanently reside here has always been and will probably be the economic practices of society associated with the use of the Arctic territorial resources. Over the past twenty years, the population of the Russian Arctic zone has decreased by half, despite the growing trend of this indicator worldwide. In this paper, the authors connect the population dynamics in the Arctic regions of the Russian Federation with the employment indicators, despite the measures currently taken to actualize the importance of human presence in the Arctic at the state level. Using the example of the Murmansk region, a constituent entity of the Russian Federation, fully located within the Arctic zone, the authors identified the leading trends in employment of the Arctic population as well as the “leading employers” of the Arctic labor market which define the parameters of regional employment. Based on the analysis of regional statistical data, the authors make a conclusion about the prospects for population changes in the Arctic zone of the Russian Federation.
Migration of people: pros and cons
Authors: Sergievskaya Nataly 
Published: March 2021

Abstract
The article reviews the causes of migration of people, influencing factors, types of migration, examines the positive and negative impacts of migration on the home countries of people and on their host countries. It presents statistical data related to migration of people in various countries. The authors examines the advantages and disadvantages of migration of people at following three levels: initial home countries, the host countries and people themselves. According to the author, the groups of migrants can be divided into the following 4 blocks based on the level of migration: 1.people go abroad planning to come back and they return to their homeland; 2.people go abroad planning to come back, but they do not return; 3.people go abroad not planning to come back, but they return to their homeland; 4.people go abroad not planning to return and stay there forever. The author proposed a conceptual model of migration of people and describes possible related scenarios, such as: win-win-win scenario; win-win-lose scenario; win – lose-lose scenario; lose-win-win scenario; lose-lose-win scenario; win-lose-win scenario; lose-lose-lose scenario.
DEPENDENCE OF THE POLARITY AND SURFACE ACTIVITY OF PHOSPHOLIPID MOLECULES ON THE COMPOSITION AND SPATIAL STRUCTURE OF THEIR MOLECULES
Authors: Marchenko Lyudmila , Bokovikova Tatyana , Rudik Victoria 
Published: March 2021

Abstract
The problems of the Arctic economy are especially relevant today and require an urgent solution. The main factor in solving these problems is a human being, a person (individual) whose health is the key to his full-fledged creative work. Preventive methods of combating diseases, an integral part of which is the creation of food products with dietary, therapeutic and preventive properties, should be of the greatest importance in programs to improve and maintain a healthy lifestyle of the population. Products manufactured by the fat and oil industry make up a significant part of the traditional diet of the Russian population. The authors have investigated and proved that the lower value of the dipole moments of phospholipids derived from oils of modern types of sunflower justifies the lower hydration of oils, and, therefore, the need to select a hydrating agent, taking into account its polarizing ability. The findings will make it possible to contribute to protection of the health of a person living in extreme conditions.
The model of an online digital competencies development system for the management personnel of the Arctic region
Authors: Abrahamyan Gennady , Atayan Anush , Sharabaeva Lubov , Gureva Tatiana 
Published: March 2021

Abstract
The article presents a model of online system devised for the development of digital competencies of management personnel in the Arctic region. The model includes a description of the means and technologies allowing implementation of distance learning processes, justification of choice of digital platforms used, structure of electronic educational resources, and methodology of analysis of students’ performance based on the “digital footprint” technology. The structure of electronic educational resources is expected to provide an opportunity of use in various modes and forms of management training, basic and additional professional education, as well as online exchange of positive professional experience between the leaders of the Arctic regions. This approach us e-learning tools in the education shall increase the interest and involvement participants in various types of cognitive activities. The use of Microsoft Office 365 solution for education allows to integrate LMS Moodle with Teams communication application, which supports interactive format of communication. And the OneDrive cloud service shall allow to ensure secure storage of electronic documents and to organize online project work in teams. The statistical data of students’ performance is collected with the use of “digital footprint” technology and analyzed in order to obtain qualitative characteristics of online education process. The expected outcomes of learning will be related to the consumers’ requests. The proposed model of the training system for managers is expected to allow the practical implementation of the Life Long Learning concept, by drawing multi-component individual educational and professional development trajectories in the Arctic region subjects.
Essential, legal and environmental aspects of sustainable development of Arctic tourism
Authors: Kuchumov Arthur , Pecheritsa Elena , Chaikovskaya Alexandra , Zhilyaeva Irina 
Published: March 2021

Abstract
The article examines some issues of sustainable development of Arctic tourism in the Russian Federation. The authors make an attempt to formulate the concept of “Arctic tourism”. They analyze existing regulatory framework for the development of Arctic tourism, consider categories and types of Arctic travel on current examples, and identify problems of sustainable Arctic tourism development. The conclusion is that development of mass tourism is not mandatory, as tourism in this region should be developed purely as an exclusive one, because it is necessary to regulate visits to protected natural areas, since otherwise there arise risks of losing the pristine nature of the Arctic.
Experimental study of the effect on soil erosion of using tiny gravel as bedding for defective sewer pipes
Authors: Khudhair H. H , Basim K N , Al-Baidhani J H 
Published: March 2021

Abstract
The erosion of soil is the most influential factor contributing to the creation of sinkholes in urban areas. Soil degradation often takes place due to failures in sewer pipelines, when water flows from and to the adjacent soil through pipes defects. Soil deficiency surrounding faulty stormwater sewer pipes has been attributed to various reasons, including water infiltration and exfiltration volume or discharge, crack size, relative density, water heads, and the number of cracks. This paper focuses on the effect of using tiny gravel media as a protective layer to reduce the processes of soil erosion due to the faults in the wastewater system, which is done by means of a comparison of erosion mechanisms observed when using a protective tiny gravel layer and without. A local sandy soil was used, obtained from the neighbourhoods near the city centre in the Karbala governorate. Sixteen tests, separated into two groups, were performed to identify the differences in outcome between the two statuses, with a matrix of various influential factors to which erosion has been attributed used across the experiments. The outcomes demonstrated that using a tiny gravel layer as a protective bedding layer has an excellent effect on impeding soil erosion processes and, in particular, tremendous efficiency in reducing cavity formation of up to 95.4%. Furthermore, the findings showed an 18.25 times decrease in the total eroded soil, while the settlement of soil surface showed a 26.35 times decrease, allowing higher internal stability and reduced sewer pipe path deformation.
Functional Reuse of Contemporary Residential Houses to Multiple Functions in Baghdad : an investigation of the most widespread functions, using Sulaikh 600 as a case study
Authors: Ali N H , Alkindy S K 
Published: March 2021

Abstract
Functional reuse of contemporary residential houses for multiple functions has been recognised, as an obvious issue in several residential neighbourhoods in Iraq in general and Baghdad in particular. This issue is currently becoming more prominent for several economic, social, and other reasons. Many previous studies have dealt with the concept of reuse to preserve residential houses with historical value, and this concept has been developed in several contemporary residential houses based on the desire of their owners to preserve them via economic investment. this paper thus highlights the growing importance of issue. The research problem was identified by determining the impact of this issue the urban context to facilitate the design of levels for contemporary residential buildings based on a diagnosis and evaluation methodology. The aim of this paper thus to the most prevalent functions of such reuse and their positive and negative effects on the urban context and local design levels. The research adopted a descriptive and analytical method to examine a selected sample of the residential houses, (with eight examples taken from one Baghdad neighbourhoods (Sulaikh 600) which has a history of functional reuse of residential houses for multiple functions. This research found that the functional reuse of contemporary residential houses as educational locations (schools and kindergartens) is the most prevalent type due to its positive effects including compensation for the shortage of government institutions, outweighing the negative effects of increasing the number of users and placing heavier pressure on the infrastructure services of the residential area, which may be functionally unsuitable for non-residential functions. This supports the development of a periodic assessment and diagnosis of this issue by the concerned authorities to preserve residential neighbourhoods to meet urban and design standards by offering better provision for needs currently met in this way. Based on the large scale of the problem, the research also highlights each sample in an attempt to diagnose the case exclusively.