bluuebunny/crossref_metadata_2025 huggingface dataset:
The Influence of Phytase Enzyme to Laying Performance and Quality of Egg Shell of Golden Arabian Chicken
Authors: Sahara Eli , Despedia Feni , Aminah Raden Ayu
Published: November 2018

Poultry has low ability to digest dietary fibre and to process phytate. Rice bran is intensively used in poultry ration although it contains little bit higher in fibre and phytate. The purpose of this study was to find out the optimal level of phytase the enzyme that could break down phytate in the ration of Golden Arabian chicken to increase performance and physical quality of the eggs. This study used 90 golden arabian chickens (Golden Brakel Kriel), approximately five months of age. Individual cage with a wire floor was equipped with a feed and drinking troughs. Experimental ration was with a mixture of corn, rice bran, commercial concentrate, and mineral mixture. Phytase was added at the level of: zerro, without phytase = P1; 100 FTU/ kg of ration; 200 FTU/kgof ration = P2; 300 FTU/kg of ration =P3; 400 FTU/ kg of ration = P4; and 500 FTU/kg of ration = P5. Experimental design that used in this study was Complete Randomized Design (CRD) with six treatments and five replications and three golden arabian chickens per experimental unit. Results showed that the addition of phytase in golden arabian chickens ration improved the hen day production (P <0.05) up to 71.43% and increased the physical quality, especially weight of eggshell significantly (P <0.05) up to 4.516 gram (phytase enzyme 300 FTU/kg) . In conclusion, that the level of the phytase of 300 FTU/kg of ration was the most optimal dose to increase the daily egg production and improve the physical quality. However, the addition of phytase did not affect to feed consumption, feed efficiency, eggshell thickness and eggshell thickness index.
Study of Natural Dyes and Pineapple Leaf Fibres Growing Locations within Plant Stems on Dyeing Intensity.
Authors: Rejo Amin , Adhiguna Rizky Tirta , Rajagukguk Debora Geovanni
Published: November 2018

The physical properties of fibres produced from pineapple leaves can vary due to the differences in growing locations within a stem and are influenced by leaf growth age. Pineapple leaf fibres require quality increase, particularly in dyeing. The utilizing of natural dyes ingredients from suji (Dracaena angustifolia) leaves extract, turmeric (Curcuma domestica val) and sappan (Caesalpinia sappan [L.]) wood have friendly impact on the environment. Various types of natural dyes and leaf fibres growing location within the stems of pineapple plants and the color intensity are carefully examined in this study. The diversity of natural dyes used in dyeing influenced the fibres color intensity of pineapple leaves. Pinneaple leaf fibers growing loccation within pineapple stems impacted fibre color lightness intensity, the axis a* and b* colors. The utilization of pineapple leaf fibers from the base of plant stem is more suitable to be used as textile raw material due to its higher lightness level.
The Social Impact and Enviromental Risks of Public Oil Mining in Musi Banyuasin Regency South Sumatera Province
Authors: Mulyanto
Published: November 2018

The oil mining was firstly performed in Musi Banyuasin Regency by the end of the 1990s as performed by the people on old wells of Standard Vacuum Oil Company which was no longer engaged in oil production activities. The crude oil is then refined into gasoline (premium), kerosene and gas oil (solar). Due to the increasing oil mining activities, the local government of Musi Banyuasin Regency stipulated a Local Regulation No.27 of 2006 concerning the sale of public oil mining products. In this local regulation, people are only paid for their work drawing out the crude oil, which is valued at a low price and is not suited with the workload. Since then, the people have not only performed mining for crude oil from old wells, but also by performing their own mining activities, especially for the mining field with a depth of 100 - 200 meters. The result is that the crude oil trade in the Musi Banyuasin Regency is increasingly widespread, either for the crude or distilled oil. This study aimed to describe, analyze and interpret social impact, environmental risks and multiplier effect of illegal public oil mining. This study used the paradigm of critical theory. The results showed there are some social impacts on people's lives in the mining and refinery sites. The positive impact is the shift of livelihood activities, from rubber farmers to oil miners, both as investors, traders, workers and oil takers, so that the multiplier effect of this activity is highly perceived by the community in their lives. The negative impact is the polarization in the life of society, such as gambling, drug distribution, red-light district and environmental degradation due to oil spills and distillation.
Marketing Performance Evaluation of Purun Agroindustry as Peatland Friendly Commodities in South Sumatera
Authors: Adriani Dessy , Wildayana Elisa , Yulius  , Putri Nurilla E. , Alamsyah Idham , Hamzah Maryanah , Maryadi  , Andarini Melati
Published: November 2018

Researchs related to purun (Heleocharisfistula) economic development should be encouraged for peatland sustainability. For long time, purun crafting was marketed traditionally only to traders who already have closebonding to the crafters. So, the research objective were (1) to evaluate the marketing performance, and (2) to design the marketing model’s plan of purun. This research was conducted in Pedamaran Area, Ogan Komering Ilir on September 2017. The result showed the performance of marketing of purun agroindustry in Pedamaran area has not yet all have a level of performance that corresponds to the importance of all marketing actors. There are gaps between performances and importances of marketing performance for atbributes, i.e. commitment in cooperation, profit, sales, prices, information, and skills improvement. The marketing model’s plan of purun are (1) building cooperative institution formally, (2) improving inputs for increasing profit, and (3) introducing e-commerce.
The New Renewable Energy Consumption Policy of Rare Earth Metals to Build Indonesia's National Energy Security
Authors: Azhar Muhamad , Solechan Solechan , Saraswati Retno , Suharso Putut , Suhartoyo Suhartoyo , Ispriyarso Budi
Published: November 2018

This study aims to discuss the policy of using renewable energy in the form of rare metal eart as an effort to build national energy security. The research method used a legal research looking from various perspectives in social science. Law is seen as a space for the process of scientific study in order to seek truth. The use of relevant legal research wants to understand the law more thoroughly. In performing implementation analysis, using the method of Regulatory Impact Assessment (RIA) with focus on energy regulation. The results of the study show that: First, the policy of the Indonesian republic government regarding the use of new energy and renewable energy aims to prepare the carrying capacity of national energy security. This policy has not fully gone well. The policy is not supported by consistency in issuing derivative policies. Second, the use of new energy and renewable energy, especially rare earth metals as part of efforts to encourage national energy security in Indonesia is still very far from expectations. The use of rare eart metal is only around 0.7% of the use of new energy. Efforts to explore and exploit rare earth metals have not been carried out in a timely manner. Whereas the potential of rare earth metals is a strategic community and has the potential to encourage national energy security in Indonesia. Indonesia is projected to produce rare earth metals reaching 20% of the world's supply.
The Effects of Lead Contamination in Public Health Case: Pesarean Village, Tegal District, Indonesia
Authors: Lestari Indah , Soesilo Tri Edhi Budhi , Agustina Haruki
Published: November 2018

Lead is one of the ten main chemicals that was found naturally in the earth's crust and has toxic effects to human health. Direct contamination due to the re-suspension of dust containing lead from soil can be inhaled by certain environmental conditions, for example in dry season and enter human body directly. The aim of this study was analyzing the effect of lead contamination toward human health in Pasarean Village.The research was conducted in Pesarean Village, Tegal District where metal smelting and used lead acid battery smelting had been done in more than 10 years ago and left the waste aside as an open dumping waste. The method that was used in this study were qualitative method using questionnaire and reviewing secondary data which was supported with literature reviews. The result showed that almost 80% of people has acute and chronic symptoms of lead poisoning and it showed that lead contained in blood was high or exceeding the blood lead level standard in human.
Determinant Factors Effect Environmental Disclosure and Firm Value at Mining Companies listed Indonesia Stock Exchange
Authors: Fuadah Luk Luk , Dewi Kencana , Arisman Anton
Published: November 2018

The study aim is to examine the effect from board size, board independende, audit committee, woman on board to firm value through environmental disclosure as a mediating variable. Agency theory and stakeholder theory use in this study. The sample in this study is all mining companies listing on the Indonesian Stock Exchange. Data is the 2013-2017 from the annual report. The result shows board size and board independence to environmental disclosure not significant. However, the audit committee, woman on board effect to environmental disclosure shows significant results. This is similar to the relationship between environmental disclosure and firm value shows a positive and significant result. The limitation in this study is just use sample from mining companies, and also only use annual report Future research can do this study use other type companies such as banking sector, manufacturing sector and use other report such as sustainability reporting.
Integrative Law Enforcement about Tin Mining Reclamation Responsibility at Bangka Belitung Island.
Authors: Haryadi Dwi , Darwance  , Salfutra Reko Dwi
Published: November 2018

Tins mining at Belitung Island had been started since 17th century, since the era of British colonialism, Dutch, Japan invasion until independence era and nowadays, tins exploitation still exists. Tins mining activities make an impact to living environment condition in Belitung island. Hundreds holes of tins exploration called “kolong” (pit) can be found easily. In good mining practice context and mining regulation, tins mining exploitation should be ended with reclamation, so, the impact of environmental damage could be minimize. But, in implementation there are many problem, such as neglect of reclamation obligation, minimum realization, wrong perception about reclamation guarantee, the results of the reclamation that being mined again, and lack of supervisions. This research focused to analyze some of those problems in a integrative law enforcement framework. This research is a qualitative research with primary data and secondary data. The data collection techniques are through literature study and interviews with related stakeholder, and also do observations at reclamation sites. This research show that reclamation responsibilities Implementation’s problems caused by many factors, and through integrative law enforcement approach focused on three study’s components, which is legal substance, legal structure components, and legal culture components can encourage tins mining reclamation at Belitung Island in line with good mining practice principle and sustainable development with environmentally conception.
Study of Water Quality in Bengalon River on Oil Palm Estate
Authors: Sarido La
Published: November 2018

Study of Water Quality in Bengalon’s River on Oil Palm Estate. Increasing of population had effect the Land cover condition and cause the polluted. Oil palm land clearing are potentially cause the pollutants in waters so that required for monitoring the quality condition. Study aims to determine the water quality based on physical, chemical and biological parameters and determine water quality standard status in accordance the Government Regulation. Research was conducted for two months in Bengalon’s River, East Kutai Regency, East Kalimantan Province. Research applies with Storet method by the reference on Government Ordinance Number 82 Year 2001, observation and documentation method, physical parameter: Temperature, TDS and TSS Turbidity, chemical parameters: pH, BOD, COD, DO, Nitrate, Nitrite, H2S as Sulfate and Iron and biological parameters: E.Coli Bacteria. The research results the waters of Bengalon’s river have been polluted by TSS, DO and Iron whereas the other parameters are still in normal condition. It showed that the waters condition of Bengalon’s river is still classified as lightly contaminated so that still can be used for class I, II, III, and IV but it provided through further processing.
Insecticides Residue in the Centre of Paddy Field in Musi Rawas, South Sumatera, Indonesia
Authors: Wartono  , Suwignyo Rujito. A. , Napoleon Adipati. , Suheryanto
Published: November 2018

Currently, the production of consumable- rise relies on rice fields especially technical irrigated rice fields. In increasing rice production, the use of insecticides become the main option to control the pest attacks.This condition generates the environmental pollution of insecticide residues on the field- soil. The most widely used- pesticides by the lowland rice farmers are insecticides or poisons to control plant pests.The active ingredients contained in insecticides are methomyl, fipronil, buprofezin, and chlorantanipol and others. Each active ingredients have the percentages of 19.20%, 16.87%, 13.56%, 13.32%, and <10%, respectively. This study aims to detect insecticide residues in the soil generated by the insecticides uses.This research was conducted at the Musi Rawas rice field center which uses insecticides as the pest control. This research was conducted in March 2018 using survey method by taking soil samples on rice fields. Residual analysis was analyzed using Gas Chromatography (GC) in the Environmental Laboratory of the Indonesian Center for Biodiversity and Biotechnology Bogor (ICBB). Laboratory test results detected 0.04 ppm of methomyl as the highest residual content in the sample.Therefore, the result has exceeded the quality standard which is 0.02 ppm. Moreover, the soil needs the further remediation to reduce contaminated- pesticides.
Performing Spatial Variabilityof Peat Depth by Using Geostatistics
Authors: Zuhdi Mohd. , Armanto M. Edi , Setiabudidaya Dedi , Ngudiantoro
Published: November 2018

Geostatistics has been knowns as a reliable tool to explore variability in space of any measured parameter. This research aims to study how peat depth change and vary in space using geostatistics aproach. The research took place in a peat land inMuaro Jambi district, Jambi province of Indonesia. The three different areas of peat depth [very deep (area A), deep (area B) and shallow (area C)] were purposely selected to investigate through borehole. From the total 120 boreholes, peat depth data were analyses using ArcGIS geostatistical analyses.The result showed that peat variability in shallow area is higher than that of deep and very deep area.It is also found that the reliable sampling distance in peat exploration should not be less than 230 meter in very deep area, 275 meter in deep area and 41 meter in shallow area.
New power decoupling strategy for grid-connected inverter under weak power grid
Authors: Wai Rong-Jong , Wang Yu
Published: November 2018

This study analyzes the power coupling in a weak power grid, and designs a novel decoupling method for the coupling power with multi harmonic frequency on the dc bus. By introducing a ratio factor for the dc-bus capacitors, the decoupling ability can be further improved. Moreover, the sliding-mode controller will enhance the system robustness and be adaptive on the varied condition of the power coupling. The proposed control strategy will be effective under the ideal power grid or even the non-ideal power grid. In addition, numerical simulations are provided to verify the effectiveness of the proposed method.
RES Usage in the Context of Sustainable Energy Development: Countries of the Eurasian Economic Union
Authors: Zoryna Tatsiana , Shershunovich Yauheniya
Published: November 2018

The authors have made a hypothesis that there are groups of the countries with a similar level of certain factors development (the level of economic development; the amount of harmful emissions in the atmosphere; the electrification level; the stock level of energy resources) for which application of a certain set of strategies within the concept of sustainable energy development is the most typical. To implement this hypothesis in this article the cluster analysis was carried out to allocate groups of the countries with the similar characteristics. The vertically integrated hierarchical structure of strategies was constructed. And the most typical strategies of sustainable energy development for 149 countries were revealed. By means of the discriminant analysis the most characteristic strategies of sustainable energy development for each cluster were defined. According to the research, for the EEU countries the most typical strategy in the power industry is use of RES. The analysis of renewable energy development in the EEU countries in 2000-2015 was carried out and the barriers and prospects of its further application in these countries were revealed.
Optimal sizing and operating strategies for VSG based BESS in ancillary service market
Authors: Liao Jian-Tang , Chen Po-Yi , Yang Hong-Tzer
Published: November 2018

In response to growing power demand and rising environmental awareness, renewable energy (RE) resources are becoming increasingly common. However, the power output of RE is intermittent, as it strongly depends on the weather conditions; this increases the difficulties for the system operator (SO) to maintain the system frequency. This paper proposes an optimal sizing and operating strategy for a battery energy storage system (BESS) which integrates with virtual synchronous generator (VSG) technologies to participate in ancillary service (AS) market. The proposed method improves the traditional dual-stage architecture of BESS capacity planning problem to speed-up computation. However, the dimension and complexity of the optimization problem would increase accordingly. Therefore, the Electron Drifting Algorithm (eDA) is proposed to solve the proposed optimization problem and improve the quality of solution. To verify the feasibility, the IEEE 30-bus test system is employed for dynamic analysis by using the dynamic power system simulation software DIgSILENT PowerFactory. This paper provides a new business model to promote investments in BESS, not only yielding economic benefits, but also effectively increasing the robustness of the grid and further accommodating additional RE.
Integration of algorithmic and heuristic techniques for reactive power compensation in smart microgrids
Authors: Lis Robert Andrzej
Published: November 2018

The paper characterizes the issues related to compensation of reactive power measures, which protect the smart microgrids from the loss of voltage stability. Slower forms of voltage instability are analyzed with power distribution simulations. The simulations represent the behavior of the system after preset shutdowns; P-U and Q-U charts are drawn to assess the voltage stability reserve in the given time. The purpose of the compensation is to decrease the reactive power transmission and the losses on the smart grid related to this power. This most often translates into introduction of new sources to achieve the established goal. This paper explains the algorithm for optimization of artificial measures of reactive power compensation with the use of decision trees, which are the primary method of induction education of machines due to their high effectiveness and the capability of a simple programming implementation.
Conventional Hydraulic Circuits in an Analysis of Environmental Issues
Authors: Kaganovich Boris M. , Stennikov Valery A. , Zarodnyuk Maxim S. , Yakshin Sergey V.
Published: November 2018

The paper addresses the problems of conventional circuit modeling in an analysis of anthropogenic pollution of nature. A joint use of two types of models is proposed: 1) a model of conventional hydraulic circuits and 2) a model of extreme intermediate states developed by Melentiev Energy Systems Institute. The first model is used to calculate the distribution of pollutants in the atmosphere and their precipitation. The second model is intended for an analysis of the formation of pollutants and their transformations in branches as a result of chemical reactions and phase transitions. The analysis is based on the propositions of classical equilibrium thermodynamics. The applicability of the thermodynamic equilibrium and extremality principles and one-dimensional circuit models in the study of both reversible and irreversible processes are substantiated. Specific problems are analyzed. These are the determination of the yield of harmful substances in fuel combustion and processing, the distribution of pollutants in the atmosphere of large regions, the impact of hydro and wind power plants on the formation of harmful solutions in the air. The possibility of using a conventional graph (a thermodynamic tree) proposed by A.N. Gorban to analyze fuel technologies is demonstrated. The statement of the problem related to the assessment of the environmental compatibility of integrated energy systems is presented. The admissibility of the representation of the optimal distribution of flows in the integrated system as a sum of optimal distributions in its subsystems that differ from one another in physical-technical and economic nature is explained.
Cyber Security-Oriented Smart Grid State Estimation
Authors: Kolosok Irina , Gurina Liudmila
Published: November 2018

Development of Smart Grid involves the introduction of Wide Area Measurement System (WAMS), which provides the use of information, computing and digital technologies for measuring, transmitting and processing operating parameters when solving control problems. In this regard, the increased vulnerability to cyberattacks of the control system was noted. The control of Smart Grid includes monitoring, forecasting and planning of the system operation based on its Electric Power System state estimation results. Therefore, the goal of the paper is to develop a mathematical instrument to bad data detection under cyberattacks. Particular attention is paid to false data injection attacks which result in distortion of state variables estimates. The result of the research is an algorithm developed for state estimation based on the interior point method and test equation obtained by Crout matrix decomposition. The obtained results showed effectiveness of the algorithm in state estimation.
Influence of inter nal relative efficiency of steam turbine compartments on the performance of steam turbine cogeneration plant
Authors: Stepanova Elena , Maksimov Alexey
Published: November 2018

The paper considers a steam turbine cogeneration plant that includes a back-pressure steam turbine and a natural gas-fired steam boiler that enables exhaust gas heat recovery, which is rather promising for the isolated heat and electricity consumers. A design and verification mathematical model of the steam turbine plant was developed. The focus is made on the optimization studies into the effect of the relative efficiency of turbine compartments on the performance indices of the steam turbine cogeneration plant with an installed electric capacity of 50 MW that uses the heat of steam contained in the combustion products of the boiler for heating the feed-water of the heat network.
Analysis of the scale of the implementation of the energy security threats in Russia up to 2030 and the main directions for the neutralization of these threats
Authors: Rabchuk Viktor , Senderov Sergey
Published: November 2018

In the paper the scales of implementation of strategic threats to energy security are compared for different time stages. The main factors affecting the strengthening or weakening of these threats are shown. The estimation of the country’s total needs in primary energy resources and the required volumes of gas to fully cover these needs (taking into account the capabilities of other energy systems of the fuel and energy complex) is made. The total possible levels of Russian gas exports for the future are estimated. The possibilities of fuel and energy complex industries for the perspective satisfaction of the needs of domestic and export consumers are considered in detail.
Innovative doubly-fed freight electric locomotive 2EV120 “Knyaz’ Vladimir”
Authors: Domanov Kirill
Published: November 2018

The paper considers a new doubly-fed freight electric locomotive taking into account the world experience of locomotive construction, the regulatory base and operating conditions on the railways of Russia. Its parameters are presented: the main technical characteristics in comparison with currently used electric locomotives of new series, standard traction characteristics, and the characteristic of electric braking. Features of the design of the units and parts of the undercarriage and brake equipment are given. The studied doubly-fed freight electric locomotive is designed taking into account the optimal combination of equipment backup capabilities and increased operational reliability with minimization of the failure flow causing the withdrawal of two or more traction axles due to the faults. It has promising possibilities for replacing outdated locomotives with alternating and direct current, operated on sections with changing and adjacent stations, electrified on a constant and single-phase alternating current in the places where such sections are joined to the extent of the organization of traffic control according to the principles of working domain technologies. In this case, the joints between the two types of the train current can pass nearly without stopping, their running time is shortened, and the performance indicators are improved.
Integrated system of non-contact thermal control of the units of self-contained locomotives
Authors: Ovcharenko Sergei , Balagin Oleg , Balagin Dmitrii , Vedruchenko Viktor
Published: November 2018

The stages of implementation of the integrated system of non-contact thermal control of the main units and systems of self-contained locomotives are considered. The developed techniques for assessing the technical state of sections of radiators, electrical machines, and high-pressure fuel equipment of self-contained locomotives using the thermal imaging control method are presented.
Advanced methods of transportation and distribution of electrical power in smart power grids of railways
Authors: Tretyakov Evgeny
Published: November 2018

The relevance of the work is determined by the need to improve the electrical distribution grids of railways on the basis of digital technologies. The article presents advanced methods of transportation and distribution of electric power in smart power grids of railways based on multi-agent control. The analysis of the power supply system for stationary railroad consumers was performed and advanced ways of their development were defined. These methods should provide increased speed, adaptive determination of restrictions on using electric power equipment, management of mode parameters, sectioning and power flow modes in electrical distribution grids, restoration of power supply after emergency events. The method of adaptive control of transportation and distribution of electric energy in the power supply system of stationary railway consumers is developed based on the hierarchical structure of IEC 61850. This method takes into account the coordination of managing and local controllers in the data exchange environment, the control results and the variable area of responsibility of controllers and their division according to their functional purpose based on the multi-agent approach. The method of power flow control was developed to reduce power losses, increase the capacity of transport channels and ensure the restoration of the normal mode of the electric network by reconfiguring it and controlling active elements based on graph theory. The method takes into account the expected daily load curve, limits on the demand for capacity by active consumers and the possibility of a closed mode of electrical network operation through controlled cross-sections. The simulation results presented on the test circuit have showed the feasibility and efficiency of the proposed approaches.
Implementation of the method of adaptive management of electric power transmission in distribution electric networks of railways
Authors: Cheremisin Vasily , Tretyakov Evgeny
Published: November 2018

The separation of the electric grid cluster rendering services related to transmission of electric power through electric grids from the railways electric power supply system within the Russian Railways holding will make it possible to proceed with to the modernization of the distribution electric networks of the railways at the expense of the investment component of the tariff. The innovative development of the grid company of the Russian Railways holding company is to be synchronized with its technological indicators with PJSC FGC UES and PJSC Rosseti and is aimed at creating a stable, efficient, flexible and intelligent electric power infrastructure. The aim of the present research is to increase the efficiency of electric power transmission in the distribution electric networks of railways due to the adaptive control of the regulators of the operation mode parameters. The implementation of the method of adaptive control of electric power transmission in distribution electric networks of railways based on the agent approach is presented.
Inductive analysis of the deflection of a beam truss allowing kinematic variation
Authors: Kirsanov Mikhail , Komerzan Evgeny , Sviridenko Olesya
Published: November 2018

A scheme of a statically determinate planar truss is proposed and an analytical calculation of its deflection and displacement of the mobile support are obtained. The forces in the rods from the external load, uniformly distributed over the nodes of the lower or upper belt, are determined by the method of cutting out nodes using the computer mathematic system Maple. In the generalization of a number of solutions of trusses with a different number of panels to the general case, the general terms of the sequence of coefficients in the formulas are found from solutions of linear homogeneous recurrence equations. To compose and solve these equations, Maple operators were used. In the process of calculation it was revealed that for even numbers of panels in half the span, the determinant of the system of equations degenerates. This corresponds to the kinematic degeneracy of the structure. The corresponding scheme of possible speeds of the truss is given. The displacement was determined by the Maxwell-Mohr’s formula. The graphs of the obtained dependences have appreciable jumps, which in principle can be used in the selection of optimal design sizes.
Adaptation and reconstruction of the stations on the Finland railway road
Authors: Vozniak Ekaterina , Burgundosova Alisa , Kopytova Anna
Published: November 2018

The article deals with the main problems of reconstruction and adaptation to modern conditions of functioning of historical stations of the Finnish railway. The Finnish railway was the first railway created in the Northern direction in the Russian Empire. The article outlined historical information and the existing state of the preserved railway pavilions. The characteristic features of functioning and the reasons of destruction and degradation of buildings of railway stations are analyzed. Herein defined and proved necessity of reconstruction and adaptation of railway stations on the territory of Russia, consisting in a complex combination of different types of social functions. Design solutions include restoration, change of building function, reconstruction of structural and engineering structure of buildings, restoration of facades and historical interiors, development of improvement zones around railway stations.
Structural changes in wooden floor panels during the construction of waiting rooms for railway stations
Authors: Volinets Sviatoslav , Razov Igor , Filisuk Vladimir
Published: November 2018

Mass migration of the urban population to the suburbs forces the producers of wooden panel houses, which are considered to be the most economical options for detached house, to constantly modify their products. Over the past 50 years, manufacturers have significantly improved the wooden panel walls. At the moment, work on improving the efficiency of such structures is in progress. However, according to the authors, the floor structure is given undeservedly little attention. In this paper, the process of testing and modifying of a standard floor slab panel, which has not changed in recent years, is described. The authors propose to increase the efficiency of the floor slab panel by adding a drop-beam, which allows not only reducing the prime cost but also to increasing the durability of the panel.
Methodology for studying impulse disturbance from rail joints to the railway vehicle and assessment of the efficiency of the new spring suspension
Authors: Nekhaev Viktor , Nikolaev Viktor , Cheltygmashev Evgenii
Published: November 2018

The methodology for studying the impulse disturbance of the railway track joints on the indicators of the dynamic qualities of the railway vehicle has been developed. The dependence of the impulse repetition factor on the energy dissipation level in the system and the speed of the vehicle is obtained. A comparative assessment of the dynamic qualities of a freight car with a typical scheme of spring suspension and a car with suspension based on the principle of compensation of external disturbances is performed. It has been established that the spring suspension of a freight car based on the principle of compensation of external disturbances delivers to it significantly better indicators of dynamic qualities in comparison with car equipped with a new three-piece truck with a typical scheme of springs. Vertical acceleration of the car’s body with a new scheme of vibration protection and dynamic forces in spring suspension is several times less than for a car with a typical three-piece truck structure.
Technology for reducing the consumption and losses of electrical energy in the power supply systems of railway consumers
Authors: Cheremisin Vasily , Demin Yury , Komyakov Alexander , Ivanchenko Vladimir
Published: November 2018

The paper is devoted to the development of technology for reducing the consumption and losses of electrical energy of railway transport enterprises on the basis of the concept of “smart enterprise”. A design solution to the monitoring and management system for energy efficiency indicators was proposed; monitored parameters and influencing factors were determined. The application of the simulation model in the MATLAB/Simulink program for determining the set values of the monitored system parameters, namely, power losses and power factor depending on the influencing factors, is considered. The approximating equation is obtained. Specific power losses were calculated for various control options.
Effect of transient processes on the switching stability of dc machines
Authors: Kharlamov Viktor , Shkodun Pavel , Ognevsky Andrey
Published: November 2018

Effective use of fuel and energy resources is one of the main tasks in modern industry and transport. The main directions of increasing the energy efficiency of the electric rolling stock of railways are considered in the paper. For the electric rolling stock of railways, a significant proportion of electric power consumption falls on traction needs. The consumption of electrical energy and its recovery directly depends on the proper operation and fine-tuning of the magnetic system and switching of traction electric motors of the rolling stock. The methods of testing traction electric motors currently used in railway transport do not fully correspond to their operating modes during operation. For more reliable control of their condition, a methodology for estimating the nature of the operation of traction electric motors in conditions close to real ones was proposed. Studies of the influence of transient processes on the quality of switching of traction electric motors taking into account operating conditions are carried out. Based on the results of the study, the analysis of the data obtained is carried out, and a criterion for estimating the switching stability of traction electric motors in transient operation modes is proposed. The proposed criterion allows carrying out quality control of the tuning of the magnetic system and switching of the traction electric motor, and also estimating the nature of its operation in various modes, taking into account the operating conditions.
The use of correlation and regression analysis for assessment of the energy effectiveness of the dc electric locomotives auxiliary equipment
Authors: Istomin Stanislav
Published: November 2018

Through additional processing of the modern movement parameter recorders data of the DC electric locomotive 2ES6 the article first presents the results of the actual consumption of electricity for own needs and the proportion of these costs from the consumption of trains traction is determined, which in terms of operational depot is difficult to implement. The estimation of influencing factors on the energy consumption for own needs of 2ES6 series electric locomotives is made. As a result it was found that the internal energy consumption is influenced by such factors as rolling stock mass, axle load and environment temperature. Statistic models were made to normalize internal electricity consumption and their quality estimation was fulfilled. It is found that the remainders of the multiple regression equation, which take the above factors into account, obey the normal distribution law, indicating the adequacy of their further use to assess the energy efficiency of the 2ES6 series DC electric locomotives auxiliary equipment. The use of regression models will allow to identify electric locomotives with auxiliary equipment with low energy efficiency and to send them to unscheduled repairs in time to restore the required technical condition.
Improvement of the method of calculation of the parameters of the universal current collector with the increased motion speeds
Authors: Smerdin Alexander , Demin Yury , Ryzhkov Alexander
Published: November 2018

The paper considers the main stages of development of a computer model of current collectors of an electric rolling stock. The original description of the kinematic scheme of a universal measuring current collector with the subsequent implementation of mathematical model in Matlab SimMechanics environment is offered. The model is based on the use of the method of homogeneous coordinates to represent the kinematic scheme of the current collector. It is shown that the computer model accurately and adequately describes the processes occurring with the current collector, is a universal instrument for simulating any types of current collectors, allows changing a wide range of parameters and characteristics incorporated in it.
Vertical transport systems for evacuation from high-rise buildings
Authors: Gravit Marina , Dmitriev Ivan , Kuzenkov Kirill , Shestakova Alena
Published: November 2018

The article discusses the possibility of using the elevators as the main evacuation path from high-rise buildings. It starts by analysis of the reasons, which make effective evacuation of people from high-rise buildings difficult. The high multi-storey office building was modelled in the Pathfinder software package. There are presented some scenarios of the human flow and their influence on time parameters (the evacuation start and signal delivery delay), on flow composition (ratio of people with different mobility) and base evacuation level of each group. The time of evacuation is compared on the staircase and using elevators. It is effective to use evacuation elevators in 60-storey buildings, but it is not rational to use them in 20-storey building.
Application of energy routers in railway power supply systems
Authors: Bulatov Yuri , Kryukov Andrey , Arsentyev Grigory
Published: November 2018

The development of electric power industry requires transition to the technological platform, encouraging implementation of smart grids. To set up these grids it is necessary to apply smart technologies of power supply system control modes, as well as interfaces, ensuring the connection of renewable energy sources. These interfaces may be represented by energy routers. The paper discusses the results of simulating emergency modes, caused by short circuits in 10 kV and 0.4 kV grids of non-traction users, connected via energy routers to the railway power supply system. The studies were performed in MATLAB system. Simulation results showed that the application of controlled energy routers for the non-traction user power supply completely removes electric power quality problems, allows for reliable integration of distributed generation plants into the power supply system, and limits short circuit currents and reduces the depth of the AC failure.
On the issue of effective protection of objects from vibration and shock
Authors: Nekhaev Viktor , Nikolaev Viktor , Rauba Aleksandr
Published: November 2018

A brief review of the research on the solution of the problems of protecting objects from vibration and shock effects is performed. The ways to find the optimal values of vibration isolators are shown on the basis of the application of control theory, including with the use of feed- forward control in systems of shockproof vibration isolation. The technique of designing quasi-invariant systems of vibration protection of objects is described and their high efficiency at various kinds of disturbing effect is shown, established as a result of numerical modeling and experimental researches.
Integrated approach to the planning of energy consumption by non-traction railway consumers
Authors: Galkin Alexander , Kovalev Alexey , Shayuhov Timur
Published: November 2018

Non-traction railway load consumes a significant amount of electricity. Russian Railways supplies electricity not only to its structural units but also to other consumers. Private houses, individual entrepreneurs and small production facilities located near the railway are powered by the RZD. It is very important for the company to plan consumption for non- traction needs. The subject of the study in the paper is a systematic approach to the planning of power consumption using the mathematical apparatus of artificial neural networks, correlation analysis and the method of expert assessments. The method of expert assessments allows identifying the most significant factors that affect the consumption of electricity. It is necessary to attract experienced professionals in the field of electricity, working at a particular enterprise. They are able to determine with a high degree of accuracy those factors that have a significant impact on the consumption of the organization. Correlation analysis allows you to mathematically check the degree of influence of a single factor on the resulting value. The apparatus of artificial neural networks allows building a forecast of power consumption, taking into account the influence of external factors. The authors propose to use a systematic approach to the planning of power consumption. It is necessary to combine three tools: the method of expert assessments, correlation analysis and artificial neural networks. The combination of these tools will improve the accuracy of power consumption planning and, as a result, will lead to increased economic efficiency due to the rational consumption of electricity.
Traffic safety management based on integrated assessment of safety level
Authors: Sukhov Philipp , Popov Vladimir , Filippov Viktor
Published: November 2018

The volumes of freight and passenger traffic on the railways of the Russian Federation are increasing every year. Along with the increase in the transportation work, the likelihood of occurrence of undesirable incidents in railway transport increases. The assessment of the level of comprehensive (integrated) safety is an important scientific and technical problem in the current conditions of the functioning of railway transport. The methods used to assess the level of safety do not always meet the requirements of complexity in view of comparison of various-scale violations of traffic safety (crash, accident, faulty operation). The paper proposes a mathematical method for assessing the level of integrated safety in railway transport and calculation of the safety index of train traffic. For the calculation, statistical data for a certain period are used. These data summarized in a specialized dictionary of traffic safety violations, the mathematical treatment of which provides information on the level of integrated safety in railway transport in the Russian Federation. The proposed index allows determining the effectiveness of management decisions in the field of train traffic safety, as well as assessing the effectiveness of implementing certain innovations in the field of traffic safety. It is possible to use data on integrated traffic safety to reduce insurance premiums for cargo insurance on railways.
Regulation of traffic flows by railway stations with a change in the number of main tracks on the hauls
Authors: Dmitrenko Aleksey , Karaseva Arina , Osipov Dmitriy
Published: November 2018

The theory of traffic flows suggests the possibility of using the analogy of handling transport units with hydraulic and other streaming processes. Railway stations, by analogy with HPPs, can be considered as compensation tanks, which ensure smoothing of fluctuations of the flows of transport units. The number of main tracks on the hauls affects the intensity and other parameters of traffic flows, which should be taken into account in calculating the track development of stations. The use of analogies with hydraulic flows allows proposing new methods for calculating the required capacity of compensating accumulators, i.e. track development of stations. In this regard, it is urgent to develop methods for correcting the calculation of the track development of stations in conditions of a change in the number of main tracks on the hauls. The purpose of the study was to develop a method for estimating the load at a station and the magnitude of the corresponding track development in conditions of a change in the number of main tracks on the hauls. The methods of simulation modeling and mathematical statistics are used. The result of the study will be a method for correcting the calculation of the track development of technical railway stations with a change in the number of main tracks on the hauls, as well as recommendations for estimating the stability of train traffic passing.