bluuebunny/crossref_metadata_2025_split huggingface dataset:
Multi-objective fuzzy optimization model of power system dynamic environment economy based on coordinated dispatching of wind power and electric vehicles
Authors: Liu ShuTing , Li ShouQiang , Xun Jian , Quan ZhenJia , Zhao Chen , Wu FeiHong 
Published: November 2020

Abstract
In order to coordinate the impact of the integration of electric vehicles and wind power on the economic dispatch of power systems, a multi-objective dispatch model for the environmental economy of wind farms with PHEVs connected to the grid was constructed. The uncertain factors of wind power generation and load will increase the difficulty of dispatching. The fuzzy theory will be used to realize the fuzzy modelling of the coordinated connection of wind power and electric vehicles. The satisfaction index will be used to transform the multi-objective problems of deterministic environment and economy into single For the objective optimization problem, based on the improvement of the traditional particle swarm optimization algorithm using linear descent search ideas and the particle information sharing method considering boundary constraints, the improved PSO algorithm is used to solve the proposed dynamic environment and economic dispatch model. From the grid operation and vehicle owners from the perspective of demand, the constraints of the system’s rotation reserve and the daily travel of the owner are considered. The comparison and analysis of the simulation of algorithms and calculation examples and multiple scheduling schemes in different scenarios verify the rationality of the model and the superiority of the improved PSO algorithm for solving such dynamic scheduling problems.
Analysis of Distributed Power Access on Distribution Network Fault Location and Voltage Quality
Authors: Li Bohan , Xu Chang , Huang Ping , Zheng Fangqin , Jiang Dan , Wang Jing 
Published: November 2020

Abstract
Distributed Generation (DG) has a certain impact on distribution network fault location and voltage quality during the access process, which is worth studying. In this paper, the impact of distributed power on the two is discussed separately, and further technical analysis is carried out with an example.
Design of elevator control system based on DE10-Nano board
Authors: Tao Yunxuan , Xie Yan , Zhang Xiangwu , Zou Qingrui , Yang Wenzhou 
Published: November 2020

Abstract
In today’s society, the elevator has become an indispensable tool in people’s production and life. Due to the obvious advantages of FPGA in digital circuit control system, the control based on FPGA has become one of the most widely used control methods of elevator. DE10-Nano board provides a powerful hardware design platform based on Intel system on chip (SoC) FPGA, which can flexibly and conveniently complete the elevator control function. In this paper, based on DE10-Nano board, the function analysis and design of elevator control system are completed, and the effectiveness of the control system function is verified through time sequence simulation.
Research on Optimal Load Scheduling for Multiple Scenarios
Authors: Ding Yifan , Huo Molin , Jiang Haiyan , Ma Yahui , Chen Aikang 
Published: November 2020

Abstract
In recent years, the operation of power grid is under great pressure due to more and more distributed resources. This paper establishes three kinds of load models, namely the electric water heater(EWH), the electric vehicle(EV) and the energy storage(ES). The response cost, speed, capacity and duration are taken as the four characteristic elements to cluster the demand side loads. According to the scenario characteristics, the factor weights under different scenarios are determined. Furthermore, the particle swarm optimization (PSO) algorithm utilized to optimize the scheduling of demand-side resources selected by K-medoids clustering algorithm. Simulation results indicate that, by taking advantage of the complementarity of the time-domain and functional characteristics of multiple loads, the consumption needs of different scenarios can be satisfied.
A New Magnetic Coupling Mechanism for Patrol Robot Wireless Charging System
Authors: Xue Tiange , Meng Xiangzhong , Hou Liyang 
Published: November 2020

Abstract
In this paper, a new magnetic coupling mechanism with Double-Layer-Double-D (DLDD) coil and nanocrystalline magnetic core is proposed for patrol robot wireless charging system. In comparison with the traditional magnetic coupling mechanism, the magnetic coupling mechanism proposed in this paper has higher magnetic induction intensity, lower magnetic leakage, higher coupling coefficient and better anti-offset ability. Hence, the efficiency of the wireless charging system can be improved. The organization of this paper is as follows. Firstly, the topological structure of the coil and magnetic core of the new magnetic coupling mechanism are introduced. Then, based on the working principle of the wireless charging system, the influence of the new magnetic coupling mechanism parameters on the transmitted power and efficiency of the wireless charging system is analysed. Moreover, in comparison with the conventional magnetic coupling mechanism, the electromagnetic properties of the two kinds of magnetic coupling mechanism are analysed and compared, including magnetic induction intensity, coupling coefficient and anti-offset ability, etc.
Multi-objective Optimal Scheduling for Improving Renewable Energy Consumption Considering Energy Storage Participation
Authors: Cheng Jiehui , Zhang Huiyuan , Xu Jun , Wang Ziqi 
Published: November 2020

Abstract
In response to global environmental crisis and energy exhaustion, the renewable energy resources represented by solar and wind energy have been rapidly developed. In order to make full use of the dispatch resources within the regional power grid, the multi-objective optimal scheduling for improving renewable energy consumption considering energy storage participation is studied. Firstly, the charging and discharging state of the multi-point arrangement of energy storage device are judged according to the source and load status of regional power gird. Secondly, considering the operation constraints of the actual system, taking the total operation cost and network loss of regional power gird as the objective functions, the improved multi-objective search algorithm based on particle swarm optimization algorithm is used to solve the model. Finally, the actual power grid in Xinjiang of China is used as an example for simulation calculations. The simulation results show that the proposed multi-objective optimal scheduling method can significantly improve the system economy, suppress the fluctuation of the upper-level exchange power, and at the same time take into account the renewable energy consumption capacity, which is conducive to the safe and stable operation of the regional power grid.
Interruptible load resource pool optimized scheduling technology for multi-scenario requirements
Authors: Ma Yahui , Guo Lei , Huo Muolin , Ding Yifang , Zhang Zhe 
Published: November 2020

Abstract
This paper firstly discusses the organization form of interruptible load resource pool, and analyzes the economic benefits of demand response and the timeliness of interupptible load. Secondly, under the premise of ensuring safe and stable operation of power grid, a scheduling strategy with dynamic planning in different scenarios is proposed. At last, the effectiveness of the interruptible load resource pool optimal scheduling technology is verified by the scheduling of temperature-controlled loads, electric vehicles (EV) and energy storage(ES) device.
Strength analysis of large motor
Authors: Wang Dongxin 
Published: November 2020

Abstract
Large motors are widely used in industrial production, mainly playing the role of load operation, equipment cooling and so on, and playing a vital role in the corresponding system, whose safety and reliability determine the stability of the entire industrial production. However, as the large motor is a rotating mechanism with a large volume, it will produce a large moment of inertia when it works at high speed. At this time, the structure between the rotor and bearing, the rotor itself, the rotor ventilation slot and other structures need to ensure a certain mechanical strength. This paper takes a 4500kW large motor as the research object, calculates the strength of rotor core and torsional strength by means of strength calculation, and analyzes the distribution of the internal stress field of the motor due to centrifugal force when it is running at high speed through finite element analysis, determines the location of stress concentration and calculates the strength requirements.
Research on the axial force and water film thickness of water-lubricated thrust bearing for mine high speed rescue pump
Authors: Bai Yuxing , Feng Zizheng , Pan Bo , Huang Dan , Fangming WU 
Published: November 2020

AbstractDue to the limitation of mine well size and the requirement of rapid rescue for flooding, a mine high speed rescue pump with small volume and large head is developed and designed. According to the hydraulic characteristics and structure of rescue pump, the axial force under 6 different speeds and 4 different flow conditions are studied. The water lubricated thrust bearing is designed. The Reynolds equation is solved by finite difference method to solve the minimum thickness of water film under the above conditions. The results show that: the axial force increases with the rise of rotating speed; the smaller the axial force, the larger the water film thickness, the greater the change amplitude of water film thickness. The research work in this paper can provide guidance for the follow-up research of high speed and big power mine rescue pump.
Experimental Study on Integration Bamboo Elastic Modulus whith Three-point Bending Nondestructive Testing Method
Authors: Wei Liuchuang , Wei Ping 
Published: November 2020

Abstract
Integrated bamboo is widely used in daily life and industrial production. This paper explores and studies the determination method of its elastic modulus. In this paper, based on the elastic theory of the member, a three-point bending method is proposed. This method was used to carry out experimental design and experiment, and the results were analyzed and discussed. The conclusion is that the three-point bending method has simple experimental conditions, convenient operation and convenient application in practice.
Wheat stem base diseases and their causal agents
Authors: Bankina Biruta , Bimšteine Gunita , Neusa-Luca Ingrīda , Kaņeps Jānis , Roga Ance , Fridmanis Dāvids 
Published: November 2020

AbstractWheat stem base disease is an important disease complex, caused by various pathogens that are characterized by variable life cycles and ecological requirements. Wheat stem bases with symptoms of different stem diseases were collected in 2012-2018. Causal agents and other fungi were identified by mycological and molecular genetic methods. A total of 6787 isolates of fungi were obtained and identified to the genera/species level. Out of the total number of isolates, 50% belonged to causal agents of stem base diseases, 10% were causal agents of leaf spots, and 8% were different saprotrophs. Fungi from the generaFusarium(51%) andOculimacula(35%) were the most dominant causal agents of stem base diseases. An increasing occurrence ofMicrodochium nivaleandM. bolleyi(totally 15%) was noticed. The dominant species ofFusariumwereF. culmorum, F. avenaceumandF. tricinctum;other species were detected only in some cases. An unexpectedly high proportion (31%) of fungi from different ecological niches were isolated from wheat stems with stem base disease symptoms.Phaeosphaeria(most likelyP. pontiformis)was the dominant fungus among non-pathogenic fungi. Further studies are required to clarify the interactions between this fungus, wheat, and causal agents of stem base diseases.
Isolation of extracts of wormwood - effective natural insecticides of the terpenoid group
Authors: Mukovoz Vladimir , Mukovoz Petr , Dolzhenko Viktor , Meshalkin Valeriy 
Published: November 2020

Abstract
Extracts of wormwood (Artemísia absínthium) grown in the greenhouse complex of the Institute of Phytopathology were obtained. The resulting extracts were isolated from the dried ground parts of this plant (leaves and flowering tops) by subsequent extractions with a mixture of dichloroethane, acetone and petroleum ether, as well as a mixture of methanol, chloroform and water with the addition of water and chloroform to separate the chloroform layer and purification on activated carbon. By further separation of the obtained extracts by preparative column chromatography, biologically active fractions with different contents of natural insecticides from the group of terpenoids were isolated. The content of biologically active components in various fractions was determined by the methods of chromatomass-spectrometry. It was found that a mixture of low-polarity chloroform with a minimum amount of polar methanol most fully extracts chrysanthenone and chrysanthenyl acetate, cineole and borneol, and the minimum extraction of terpenoids is observed with an increase in the content of polar methanol in the eluent containing chloroform. The insecticidal effect of the isolated fractions on the large cereal aphid (Sitobion avenae) was studied. It was found that the maximum insecticidal effect (100% death of insects) was exhibited by the fraction of terpenoids isolated during extraction with a low-polarity eluent containing chloroform with a minimum amount of methanol. It was found that the fraction of terpenoids containing a high amount of chamazulene exhibited a moderate insecticidal effect (31% of insect mortality), while fractions with a low content of this compound exhibited low insecticidal activity. It was shown that extracts of wormwood have an insecticidal effect against the pest of cereal crops, large cereal aphid and can be used as environmentally friendly natural insecticidal additives to commercial preparations.
Different Fe(III) and Fe(II) complexes in clonal micropropagation of Gooseberry
Authors: Nikulina Elena , Akimova Svetlana , Tsirulnikova Nina , Kirkach Vadim 
Published: November 2020

Abstract
Iron chlorosis and tissue necrotization are often problems of plant growth in sterile conditions. Therefore, the overall multiplication factor and the productiveness dramatically decrease. The aim of work paper was to study the effect of various forms of iron chelates, including the stable complex of iron (II) with phosphorus-containing organic ligand, 1-hydroxyethylidenediphosphonic acid (HEDP), to the nutrient medium on the development of micro-shoots of Pink-2 (Rosovy-2) gooseberry cultivar according to Quoirin & Lepoivre (QL). Seven types of media were used in the screening: FeS04×7H20 + Na2EDTA (two control variant); Fe-EDTA - a complex of iron with ethylenediaminotetraacetic acid as such; Fe-DTPA (ferric diethylenetriaminepentaacetate), Fe3+ and Fe2+ -HEDP (ferric (III,II) 1-hydroxy ethylidene-1,1-diphosphonate), Fe-EDDHA (ethylenediamine di-2-hydroxyphenyl acetate ferric). The influence of 4 concentration values of concentrations of introduced iron complexes were studied experimentally: reduced (×0.5), standard (×l), increased 1.5-fold (×l.5) and double concentration (×2). Results have shown that form of introduction of iron sources, the valence of the iron ion, the ligand types and their concentrations are important factors in shoot multiplication of gooseberry cultivar ‘Pink-2’.
Assessment of health risks associated with soil contamination by heavy metal in an impact area of Novocherkassk power plant
Authors: Lobzenko Ilia , Konstantinova Elizaveta , Bauer Tatiana , Mandzhieva Saglara , Sushkova Svetlana , Chaplygin Victor , Burachevskaya Marina , Minkina Tatiana , Kravcova Natalia , Kalinichenko Valery 
Published: November 2020

Abstract
Soil contamination with heavy metals (HM) due to emissions of fired power plants poses risks to ecological safety and human wellbeing. Total concentration of Cr, Mn, Ni, Cu, Zn, Cd, and Pb in twelve surface soils (0-20 cm) around the Novocherkassk Power Plant (NPP) was determined using X-ray fluorescence spectrometry. According to the level of non-carcinogenic risk for all age groups, metals form the following series in descending order: Pb> Ni> Mn> Cu> Cd> Zn> Cr. The total risk of general toxic effects of all studied elements for both age groups is assessed as low. The carcinogenic risk due to the combined exposure to Ni, Cd and Pb slightly exceeds the permissible level of 1 × 10−6 in the soils in the immediate vicinity of the plant, but in general, it corresponds to the acceptable level in the study area.
On The Road to Recovery of Organic Waste into a Growth Substrate - Öland Case Study
Authors: Sachpazidou Varvara , Katrantsiotis Christos , Ferrans Laura , Hogland William 
Published: November 2020

Abstract
The CONTRA- Baltic Beach Wrack- Conversion of Nuisance to a Resource and Asset project aims to transform Beach Wrack into a Resource. In collaboration with CONTRA project, the Environmental Science and Engineering Group (ESEG) aims to demonstrate the technological and economic feasibility of using beach wrack raw materials for energy production and bio-based compost as practical approaches towards the circular economy. In the present study, the purpose is to concentrate the nutrients from four different biological materials (beach wrack, sawdust or wood chips, degraded sediments and Coffee powder), through the composting process.
Application of plasma-pyrolytic processing of solid radioactive waste on a floating nuclear power plant
Authors: Polyakov Nikita , Chulkin Sergey 
Published: November 2020

Abstract
During the operation of a floating nuclear thermal power plant (FNPP), in particular the Akademik Lomonosov FNPP, radioactive hazardous waste (RW) is generated. There is no unified infrastructure for RW utilization in the far North of Russia. In this regard, to reduce chemical risks and the cost of ownership of raw materials, it is necessary to create processing complexes at the site of hazardous waste generation. The purpose of this work is to assess the economic efficiency of radioactive waste disposal, environmental safety and operational qualities of the RW plasma-pyrolytic processing unit at the FNPP. As a result of analytical studies, it was found that the economic efficiency of disposal of products processed by the new plant is more than 13 million rubles for 1 cycle of operation of the plant. It is determined that harmful factors affecting a person when working with the plant should be taken into account when designing the location of the plant at a nuclear power plant and means for automating the processing process. The amount of polychlorinated dibenzo-p-dioxins and dibenzofurans in the emissions of the processing plant does not exceed 0.014-0.02 ng/m3 in toxic equivalent (TE), and the elimination of possible accidents at the plant is relatively easy to localize and eliminate.
Baltic Smart Asset Management – data driven predictive maintenance methods for future
Authors: Hogland William , Katrantsiotis Christos , Asim Ibrahim Muhammad 
Published: November 2020

Abstract
This Interreg project Baltic Smart Asset Management focuses on District Heating (DH) studies in the three Baltic countries Lithuania, Poland and Sweden. Some part of the grids in the member countries start to be old and safe, secure and affordable energy supply most be delivered and reduction of CO2 emission is obvious though boilers are fed by gas, oil, coals and solid wasted and renewable energy sources must be used instead. The paper gives some basic information about district heating system and how the countries through a cross-border strategy will create awareness of preventive data driven maintenance methods energy companies based on the educational purpose to decrease harmful emissions to environment. As technological methods has improved greatly in recent years these should be given more consideration as a possible treatment option of DH instead of chemicals which can have Environmental impact in the form of the influence of metals and degradation of habitat, species etc. Involvement of associated partners and stakeholder in the work is of high importance in the project.
Assessment of Russian regions vulnerability to groundwater pollution with pesticides
Authors: Kolupaeva Victoria , Gorbatov Victor , Nuhina Inna 
Published: November 2020

Abstract
The predisposition of the region to groundwater pollution by pesticides depends on climatic and soil factors, characteristics of the aquifer system, the type of the territory management, physicochemical properties of used pesticides and timing of their application. The applying of computer models for vulnerability assessment allows to consider the influence of factors affecting the migration of substances through the soil profile. Agricultural districts of Russia were grouped by basic climatic parameters -average annual temperatures and rainfall. 9 large regions with uniform climatic characteristics were obtained. The combination of climatic and soil parameters of each region made up a standard scenario, which was implemented as input files to the pesticide fate model PEARL. As an indicator of the vulnerability of groundwater to pesticide contamination, we used the predicted weighted average annual pesticide concentrations in leachate at a depth of 1 m. Calculations showed the highest vulnerability was in Nizhny Novgorod, Moscow, Pskov, Vladivostok, intermediate one - in Novosibirsk, and the lowest ones - in Kurgan, Saratov, Kursk and Krasnodar.
Changes in the channel of the section of the Red River flowing through the Hanoi region
Authors: Dinh Tu , Kharlamova Natalia , Ionkina Elena , Nguyen Ha , Krasnoscshekov Victor 
Published: November 2020

Abstract
The article substantiates the need to study the fluctuations of the area of the Red riverbed in the area of the city of Hanoi in certain historical periods. A methodology for studying the river, including methods of remote sensing of the Earth (remote sensing) and Geographic Information System (GIS), is proposed. It is established that during each historical period, the riverbed changes in the direction of a gradual balance of bends, erosion of the banks and growth between the two banks. The influence of climate change on spatial changes in the riverbed was analyzed using a superimposed map and ceilings. Explosive fluctuations in the area of the riverbed were detected during periods of peak floods and greatest droughts. The results of the research that formed the basis for building a spatial security corridor and planning operational and environmental solutions on both banks of the river are presented.
The efficiency of the on-grid solar power plant in the Chechen Republic
Authors: Salamov Islam , Bobyl Alexander , Mekhilef Saad 
Published: November 2020

Abstract
The paper presents the analysis’ results of the generation and economic efficiency of a solar power station functioning in the private sector in conjunction with a centralized power grid. Based on data analysis of the generation of a test solar power plant with a capacity of 1.86 kW, a comparative analysis of the calculated and actual characteristics in real functioning conditions is carried out. The estimated power generation capacity of the station during 5 months (December 2019 - April 2020) was 680.1 kWh, and the actual generation for the same period was 525.86 kWh. Using data on the solar radiation’s level on the Chechen Republic territory, as well as data on electricity tariffs in the region, the economic effect of using a grid solar power plant is predicted. Taking into account the electricity tariff for private consumers, the estimated payback period of the system was 25 years. At a rate for commercial consumers - 12 years. Based on the analysis, it was concluded that the use of grid solar power plants is economically feasible only for electricity consumers in the Chechen Republic who purchase electricity at a commercial rate.