bluuebunny/crossref_metadata_2025_split huggingface dataset:
Interregional lake basin management: the case of Lake Tahoe
Authors: Dets I A 
Published: January 2021

Abstract
The article provides an overview of the environmental conservation development in the lake Tahoe basin, located on the border of two US States. The geographical feature of the location made the process of managing economic activities on the lake more complex. The article highlights the role of local environmental organizations that contributed to public debate on lake pollution issues, which resulted in the formation of a unique Agency managing regional planning in the lake’s catchment area. The historical overview of the main events related to the activities of the Agency and environmental organizations in the region is also presented. The analysis shows that the organization of a single governing body has not brought rapid results in environmental protection; the contradictions between economic growth and environmental protection remain. Regulatory experience in the Lake Tahoe Basin shows that many restrictive measures can be challenged in litigation under the rule of law. The results also show that the achievement of the set environmental indicators, even if the Agency is established, is problematic; and the measures taken can lead to a significant reduction in the number of permanent local population and stagnation in certain sectors of the local economy.
Asian Russia and the deglobalization trend
Authors: Cherenev A A , Popov P L 
Published: January 2021

Abstract
The article substantiates the hypothesis according that says the socio-economic and geopolitical position of the Asian part of the Russian Federation should be considered not only in the context of globalization, but also in the context of the competing trend of deglobalization. The work lists the processes of an anti-globalization nature in many countries. Deglobalization entails increasing the role of states geographically close to the eastern macroregions of Russia, which creates both additional opportunities for socio-economic development and cooperation, and geopolitical risks. Socio-economic cooperation can be expressed in the creation of closer ties both between macroregions and with neighboring states, and the accelerated development of the underdeveloped spaces of the eastern macroregions of Russia. The negative consequences can be expressed in the increased pressure of some geopolitical actors on Siberia and the Far East. These geopolitical actors are the United States, China, Japan and Turkey. The USA expansion of can be expressed in economic penetration, support for the liberal opposition, ideological directions of the liberal circle, and expansion from Japan – in economic penetration. From Turkey it is possible to support ethnic movements of the Pan-Turkist orientation, and from all the countries mentioned above -in support of macroregional and ethnic separatism.
Modern exogenous processes in the mountains of Cisbaikalia
Authors: Plyusnin V M 
Published: January 2021

Abstract
Lake Baikal and its shores become attractive for tourists. The growth of tourist flow forces the stakeholders to develop new territories and water areas, create a tourist infrastructure, involve more natural resources, but also concern about safety of tourists. In the ridges of the Baikal region as in most mountainous countries hazardous exogenous processes present a danger to tourists. We studied modern processes and prepared to their mapping in order to identify areas which are subject to one or another exogenous process and intensity of their occurrence at two key areas in the Baikal and Barguzin Ranges. We arranged field expeditions, analyzed remote sensing data of the Earth, used meteorological data, studied geological structures, made morphometric mapping, and took samples for chemical analysis of sediments, mapped plant groups, measured areas, lengths, and depths of relief forms created by exogenous processes. The results obtained led to the creation of large-scale maps of main exogenous processes of relief formation, intensity of their course, length and action mode and to the adjustment of meteorological parameters, absolute heights and slopes, tectonics and ancient glaciation. Our study determined the patterns of exogenous processes, areal, linear, fan-shaped, pointed and diffused. Development of certain types of exogenous processes in the mountains of Cisbaikalia is due to seismic activity, high vertical and horizontal dissection of the relief, and the peculiarities of climatic conditions. Paying attention to them will ensure avoiding catastrophic impact on the recreational development of the mountainous territories of Cisbaikalia.
Optimization Design of Deep Foundation Pit Support Scheme under Traffic Dynamic Load
Authors: Kang Li , Wang Yanwei , Cao Jianhao , Bai Song 
Published: January 2021

Abstract
In this paper, based on the deep foundation pit support of the reconstruction and expansion project of Jiqing expressway, numerical software is used to establish the numerical calculation model of the deformation support of deep foundation pit under the influence of traffic dynamic load. The numerical calculation results are consistent with the actual project monitoring results. By changing the support parameters such as pile diameter, pile length, vertical support distance in different support schemes is analyzed. The results show that the ideal diameter of bored pile is 0.8-1.2m, the length of pile is 23m-28m. With the vertical support distance increasing, the change trend of horizontal displacement of piles gradually increases. Considering the safety of foundation pit and the reduction of project cost, the pile with length 23m, diameter 0.8m and the vertical support distance 5m is chosen in the practical engineering.
Study on simulation method of excavation of metro transfer station
Authors: Zhu Henghua , Li Hu , Wei Ruchun , Shang Hao , Jia Chao , Wang Xin , Ma Yuhong , Zhou Yang , Li Shuang 
Published: January 2021

Abstract
In order to study the numerical simulation method of metro transfer station, a three-dimensional finite element model with and without considering fluid-solid coupling effect is established based on a metro transfer station of Jinan. The difference between the displacement of diaphragm wall, as well as the ground surface settlement, under the two conditions is compared. And a conversion equation of the retaining structure is deduced to convert the discontinuous pile wall into a continuous wall for numerical simulation modelling. The conclusions of this paper could serve as a reference for the numerical simulation of other metro transfer station projects.
Design of the Outdoor Cruising Control System of the Quadrotor Drone
Authors: Zhang Xiaomei , Chen Chengbin , Su Kaixiong , Lin Liang , Tian Yaoyuan 
Published: January 2021

Abstract
During the outdoor cruising flight of the UAV, it will often cause problems such as inaccurate positioning information and course to drift due to interference of sensor signal errors, ground effects, airflow, and communication delay. In this paper, an outdoor cruising control system of the quadrotor drone is designed, where the Kalman filter and the Mahony filter are adopted to fuse the sensor data to obtain the attitude to be controlled, and the PID control method is introduced to reduce the external noise to the control system. As a result, the GPS/INS combined navigation method was used to design the quadrotor drone controller. The system improves the anti-jamming capability of the aircraft, has the advantages of real-time, fast response, and high precision, and can realize the positioning cruise function of the quadrotor aircraft in a complex outdoor environment.
Numerical Simulation Analysis of Cutter Head of Large Diameter Metro Shield with Soft Upper and Hard Bottom
Authors: Luo Qingfei , Cao Quan , Li Wei , Xue Yanjun , Meng Qingming , Shen Peng , Zhang Mengheng 
Published: January 2021

Abstract
Taking the large-diameter shield cutter head between Xinglong Station and Tianfu new station in Civil Engineering Section 4 of Chengdu metro line 18 as an example, the numerical simulation is carried out by finite element software to analyze the stress and deformation of large-diameter shield cutter head under different loads in upper soft and lower hard strata. The results show that the stress and deformation of cutter head meet the design requirements, which can provide certain reference value for similar projects in the future.
Fuzzy Mathematics Comprehensive Forecasting Analysis of Metal Mine Rockburst Based on Multiple Criteriahere
Authors: Hu Nan , Li Changhong , Liu Yang , Wu Yunfeng 
Published: January 2021

Abstract
The underground environment in deep mines is complicated and the risk of rockburst is high during excavation. Therefore, it is of great significance to study the tendency of rockburst during excavation. At present, scholars from various countries have analyzed rockburst phenomena from the aspects of strength, stiffness, energy, etc., and have proposed various assumptions and criteria. However, these assumptions and criteria often only consider individual factors, which will lead to one-sidedness and limitations. This article takes the deep mining process of a metal mine as the research background. Based on the results of each independent criterion, fuzzy mathematical theory is introduced to evaluate the rockburst intensity and fuzzy comprehensiveness of various types of rocks in the project. The research results show that the multi-criteria comprehensive evaluation of fuzzy mathematics can well integrate the analysis results of each criterion, and has higher consistency with the actual situation in engineering.
Effect and Mechanism of Quicklime on Stabilized Loess
Authors: Xiao Xie , Wei Yulu , Wang Gao 
Published: January 2021

Abstract
Lime is a cheap and easily available building material, which can greatly change the physical and mechanical properties of soil and is widely used in engineering construction. This article summarizes the effect and mechanism of quicklime in improving loess mechanical properties. The changes of physical and mechanical properties of loess after lime added and the internal mechanism of lime-improved soil are summarized, also, the factors affecting lime-soil improvement are analysed.
Numerical Calculation and Analysis of Gun Barrel Heat Transfer
Authors: Xi Shouzhi , Wu Hanzhou 
Published: January 2021

Abstract
With the help of classical interior ballistic model, the thermal environment parameters inside and outside the gun barrel are analyzed and calculated. Then, the finite difference method is used to calculate the heat transfer process of the barrel, and the distribution of the peak temperature and radial temperature field is obtained. The results show that the inner wall temperature increases rapidly at first, and the speed of temperature increase gradually decreases when the inner wall temperature reaches the extreme value, and the speed of temperature decrease gradually. In the case of continuous firing, the temperature does not necessarily decrease monotonically in the radial coordinates of the barrel. Under certain circumstances, one or more extreme points may appear.
Analysis of Renewable Integrated DG Investment Planning Based on Emission Cost
Authors: Niu Kun , Lyu Zhongni , Zheng Boyuan 
Published: January 2021

Abstract
The prospect of distributed power generation investment planning (DGIP) is particularly important in island networks due to multiple reasons such as energy security, emissions, and renewable energy integration goals. Against this background, this article proposes a consideration that includes various types of DGIP models including renewable energy. The planning process includes an economic analysis that takes into account emissions costs, reliability and other related cost components. In addition, the variability and uncertainty of model parameters for distributed generation comprehensive sensitivity analysis of the impact of investment decisions. The ultimate goal is to determine the parameters that have an important impact on the decision-making process and quantify their degree of impact. The results show that uncertainty has an important impact on DG investment decisions. In fact, the degree of impact varies depending on the parameters. However, in general, ignoring or not fully considering the uncertainty and variability in model parameters is a quantifiable cost. The analysis made in this article is the most relevant to determine the need for special attention in planning practice the model parameters are very useful.
Research on Boost Converter in Photovoltaic DC Boost Collection System
Authors: Ma Yongwei , Suo Lian 
Published: January 2021

Abstract
With the development and utilization of renewable energy, the DC collection of photovoltaics has solved the difficult problem of photovoltaic transmission, and the research of high-voltage and high-power converters has become the key. The boost full-bridge isolated converter (BFBIC) is used as the basic boost module, and the voltage level of the DC transmission line is reached through the independent input of the photovoltaic array and the parallel output of the boost converter. Moreover, after analysing the working principle of BFBIC and introducing the control transfer function of the boost module, this paper combines the principle of maximum power point tracking (MPPT), and adopts the classic double closed-loop control strategy. Finally, the simulation model is built in RTDS. By considering the operation of the system under the conditions of constant irradiation and changing irradiation, the simulation results verifies the feasibility of the system.
Remote Maintenance System of Industrial Ultra-Pure Water Based on Deep Learning
Authors: Sheng Xu , Lei Wang , Xiang He 
Published: January 2021

Abstract
In order to meet the requirements of controlling the water quality of electric power, electronics and other manufacturing industries and reducing energy consumption through remote operation and maintenance system, an intelligent remote operation and maintenance system of ultra-pure water is constructed for ultra-pure water manufacturing in electronic industry. radial basis function neural network and generalized regression neural network are used to fit and predict the effluent quality of ultra-pure water. Through data analysis, the above algorithm is used to realize the accurate prediction of ultra-pure water system and intelligent adaptive control, which improves the accuracy and convergence speed of the algorithm. The results show that on the basis of the simulation of the model, the purpose of improving water production quality, saving energy and reducing consumption can be achieved through backwater utilization and frequency conversion speed regulation.
Research on voltage control strategy optimization of wind farm cluster
Authors: Zhang Meilun , Xu Maoda , Zhang Jin , Hao Wenbo , Hu Yuanting , Liu Jin , Zhang Rui 
Published: January 2021

Abstract
With the continuous expansion of the grid-connected scale of wind farms, the problem of the stability of the grid-connected point voltage of wind farm cluster has become increasingly prominent. However, the current reactive voltage control strategy of wind farm cluster has less research on the optimization of the internal node voltage and grid loss of wind farms, and the problem of the reduction of wind turbine life caused by the full reactive power of doubly-fed wind turbines needs further research. In view of the above problems, this paper proposes a wind farm cluster reactive voltage hierarchical control strategy based on the reactive power margin of doubly-fed wind turbines. The strategy improves the traditional artificial fish algorithm and realizes the reactive voltage control of wind farm cluster. As a result, the node and network loss have reached a certain degree of optimization.
Research on Real-time Automatic Acquisition Technology of Topology Data in Distribution Network
Authors: Chen Jing , Lin Chao , Xue Yingwei , Hu Jiandi , Li Jiaying 
Published: January 2021

Abstract
The current distribution network equipment renovation plan arrangement is mainly based on the equipment health level, operating years and other indicators. Coordination and optimization between renovation projects are still lacking. Scattered and disorderly transformation will cause potential safety hazards in the distribution network operation. The paper proposes to establish a unified real-time data collection platform for distribution network based on real-time/historical database, and gives the construction idea and implementation plan of the platform. The designed platform has data interfaces with mainstream production control systems, user meters and electrical related systems, and integrates a wealth of common software tools, which can manage and analyze the real-time/quasi-real-time data of the distribution network in a unified manner and can facilitate Coordinated with the implementation of advanced applications of smart distribution networks, it has laid the foundation for the analysis and control of the optimized operation of the entire grid/local area grid and the construction of an integrated model of smart grid operation and distribution. At the same time, the paper proposes a method for checking the topology of low-voltage distribution networks based on outlier detection, calculates the correlation coefficient between the voltage sequence data to measure the similarity of the voltage curves of different users, and finally verifies the users and stations in the grid GIS system The correctness of the zone transformer topology connection relationship.
Study on the adaptability of 5G and wireless private network applied to the protection of medium voltage distribution network
Authors: Shen Bing , Zou Xiaofeng 
Published: January 2021

Abstract
With a large number of grid connected renewable energy power generation brings new challenges to the operation and management of power grid in the future, the deep penetration of distributed energy makes the distribution network from the passive network with unidirectional power flow to the active network with bidirectional power flow, and the protection business of distribution network presents the situational demand of large data volume, high performance and new energy access. This paper makes use of the characteristics of 5G communication network, such as large bandwidth, low time delay and high reliability, to avoid the difficulties of traditional communication network deployment, and makes in-depth research and comparison from two aspects of demand and technology to explore the adaptability of 5G communication and future medium voltage distribution network protection servicebearing.
Research on the Software of Planning Assisted Decision of Park Integrated Energy System
Authors: Zuo Gao , Zhang Chao , Teng Zhenshan , Wang Binbin , Wang Zhiguang 
Published: January 2021

Abstract
According to the characteristics of multi-demand of integrated energy customers, multi-faceted projects and complex technology categories, a decision-making software for integrated energy system planning is proposed. By constructing the investment income model of the energy system in the park, the software realizes the accurate planning of the capacity of the integrated energy system and the accurate evaluation of the investment income of the energy system, which provides the auxiliary decision support for the energy end users, the energy service providers and so on. The software realizes the intelligent optimization of the planning scheme through the optimization algorithm, and realizes the optimal planning capacity and investment income of the integrated energy system in the park. The software enriches the means of energy system planning and design, and improves the efficiency of planning.
Research on Transmission and Transformation Engineering Cost System Based on BIM 3D Modelling Technology
Authors: Luo Wei , Zhang Jiali , Wang Miao , Wang Kaikai 
Published: January 2021

Abstract
Taking the concept of service-oriented design as the concept, the paper designs the digital platform architecture based on the integrated application ideas and technical methods of the IFC standard and the three-dimensional geospatial engineering cost information platform, and builds a 3DGIS+BIM digital power engineering cost based on the B/S network architecture. information platform. Combined with the application value of BIM technology in the field of engineering cost, the applicability of BIM technology in the management of transmission and transformation engineering cost is first analysed; then the BIM technology is studied layer by layer from the aspects of graphical calculation, three-dimensional design and full process management Promoting strategies for application of engineering cost management; Finally, from the perspective of policy guidance, industry standards, BIM platform construction, and training of BIM talents, the application guarantee mechanism of BIM technology in transmission and transformation project cost management is proposed, with a view to BIM technology in transmission and transformation projects Provide reference for application promotion in cost management.
Research on Job Crafting Based on the Theory of Strength Perspective
Authors: He Yuanyuan 
Published: January 2021

Abstract
Post-90 employees have gradually become the main force in the workplace, and giving full play to their individual advantages helps them to understand themselves objectively and rationally, reshape their work behavior, and enhance their sense of work identity, sense of value and mission. Integrating the existing results of job crafting, we can find that job crafting based on the theory of strength perspective includes three levels: individual level, group level, and organizational level. While exploring the three levels of job crafting, this paper further constructs a theoretical model and proposes five implementation strategies, which have important theoretical contributions and practical value to the research on strength perspective and job crafting.
Static Wind Nonlinear Analysis of Iced Transmission Lines
Authors: You Yi , Zhang Long , Yan Zhitao , Nie Xiaochun , Wang Feng 
Published: January 2021

Abstract
The torsion of iced transmission line under the action of static wind will affect the configuration of its equilibrium state. This state is very critical for occur of the galloping. The beam element simulation method of iced transmission line is proposed. The stiffness matrix and mass matrix are derived, and the double nonlinear analysis method considering geometric nonlinearity and material nonlinearity is proposed. The static wind stability analysis of iced transmission line show that the aerodynamic nonlinearity caused by the shape is obvious. With the increase of wind loads, the torsion angle of conductor increases and the three component force coefficient changes, which leads to the nonlinear change of displacement and internal force response. At low wind speed, the iced conductor is more sensitive to the initial attack angle of wind, but at high wind speed, the conductor deformation is not sensitive to the initial attack angle of wind, and both will converge to the positive and negative values respectively.
Application of PLC-Based Stroke Control in Industrial Production
Authors: He Xiaodan , Chen Xiaosheng 
Published: January 2021

Abstract
According to the requirements of large-stroke and high-precision positioning control in industrial production, the paper proposes a position closed-loop control system based on belt-type magnetic scale and PLC. The Siemens S7-200 PLC is used to capture the high-speed pulses of the magnetic scale in real time, realize the closed- loop automatic positioning control of the large-stroke position, and apply it to the plastic steel profile sawing centre control system, which solves the traditional stepper motor open loop at a lower cost The accuracy problems caused by the control greatly reduce the threshold of precise positioning control, which has strong practical application value.