scholarly journals Strategic forecasting of complex production system - railway transport

2017 ◽  
Vol 76 (5) ◽  
pp. 255-265 ◽  
Author(s):  
E. A. Sotnikov ◽  
K. P. Shenfeld
Keyword(s):  
Production Systems ◽  
Rolling Stock ◽  
Railway Transport ◽  
Unit Costs ◽  
Transportation Process ◽  
Economic State ◽  
Large Production ◽  
Complex Production System ◽  
High Level

The paper considers conditions and methods for developing a strategic forecast for the technical and economic state of the worldwide and Russian railway transport for a period of 30-50 years or more. The analysis was made on changes in the state of infrastructure, rolling stock, organization of train traffic and shunting work, nature of the management of the transportation process from 1825 to the present. It is established that many quantitative and qualitative indicators of its technical and technological state have improved during this period many times and by orders of magnitude. This allowed the railway transport to ensure a high level of competitiveness in the transport system of the world, including our country, despite the emergence of all new modes of transport. At the same time, some such indicators are now close to the maximum possible and will not be able to grow rapidly in the future. It is accepted that in the development of strategic fore-casts of the technical and technological state of complex (large) production systems, it is necessary to determine the most important parameters, which in the long term can be improved many times substantially, which in the complex system under consideration will achieve a significant reduction in costs, and even increase their competitiveness. The main trends in the development of railways for a strategic long-term period are determined, taking into account the support of the development of its technical and technological state for the achievements of fundamental and branch science. These trends take into account both known solutions, for example, HS operation and new solutions. The implementation of the proposals will allow the railways to achieve a reduction in unit costs (per unit of transport output), preserve and increase their competitiveness in the constantly developing transport market.

scholarly journals Effect of workforce diversity on the cost-effectiveness of milk production systems participating in the “full bucket” program

2019 ◽  
Vol 40 (1) ◽  
pp. 323
Author(s):  
Marcos Aurelio Lopes ◽  
Flavio De Moraes ◽  
Francisval Melo Carvalho ◽  
Fabio Raphael Pascotti Bruhn ◽  
Andre Luis Ribeiro Lima ◽  
...  
Keyword(s):  
Cost Effectiveness ◽  
Production Cost ◽  
Production Systems ◽  
Operating Cost ◽  
Total Production ◽  
Unit Costs ◽  
The Family ◽  
Net Margin ◽  
The Cost

This study aimed to analyze the effect of each workforce type on the cost-effectiveness of 20 dairy farms participating in the “Full Bucket” program, from January to December 2011, in the State of Rio de Janeiro. A stepwise multiple linear regression was used to identify the production cost components that most affected net margin, profitability, and cost-effectiveness. Workforce type influenced both profitability and cost-effectiveness, as well as total production cost. Economic analysis showed that farms with a hired workforce had the lowest total unit costs and a positive result. This way, the activity is able to produce in the long term and farmers are capitalizing. The farms that adopted mixed and family workforce had a positive net margin and a negative result, obtaining conditions to produce in the medium term. The highest representativeness on the items of effective operating cost in the family workforce stratum, in a descending order, were food, miscellaneous expenses, and energy. The most representative items in the mixed and hired workforce strata were food, workforce, and miscellaneous expenses.

scholarly journals The work of rails under conditions of various average static axial loads of rolling stock

2018 ◽  
Vol 77 (3) ◽  
pp. 172-176
Author(s):  
M. I. Titarenko
Keyword(s):  
Entire Range ◽  
Static Load ◽  
Statistical Data ◽  
Operating Conditions ◽  
Rolling Stock ◽  
Axial Loads ◽  
Track Maintenance ◽  
Transportation Process ◽  
Operational Factor

The analysis of failure of unhardened and heat-strengthened R65 rails under operating conditions in the tangent sections of the track is presented taking into account the influence of the most important operational factor - the average static axial loads of the rolling stock. Non-reinforced R65 rails in the jointed track on the 12.5 m long wooden sub-rail base were considered based on the results of their single replacement in the entire range of their failures. The work of rails under operating conditions is estimated at average static axial loads of rolling stock as 7.5, 9.5, 16.5 and 19.5 tf (73.55, 93.16, 161.82 and 191.21 kN) at all stages of the tonnage at each load. The influence of the average static axial loads of the rolling stock on rail failure in specific operating conditions has been revealed. The features of the change in the intensity of rail failure are considered at all stages of their operation, both for the specified and for the average network level of the static load. The obtained statistical data on the effect of axial loads of rolling stock on the operation of rails can be used in the practice of track maintenance. In conditions of increasing axial loads up to 25, 27 tf, it is necessary to use rails of the appropriate quality; also it is expedient to create new rails for such operating conditions. It is necessary to perform an evaluation of the real operational qualities of the rails in order to use the rolling stock with the increased axial loads (25, 27 tf) in the transportation process in the most efficient way. In the long term, the results of such studies will be aimed at improving the operation of the systems for running track and railway car complexes.

MODERN ROLLING COMPOSITION OF RAILWAY TRANSPORT. MAIN TRENDS IN TRANSPORT ENGINEERING

2020 ◽  
Vol 2 (3) ◽  
pp. 47-52
Author(s):  
A. G. YEROYAN ◽  
Keyword(s):  
Rolling Stock ◽  
Rail Transportation ◽  
Railway Transport ◽  
Large Cities ◽  
Technical Parameters ◽  
Transportation Process ◽  
Cargo Transportation ◽  
Increasing Demand ◽  
Modern Rolling

The article explores the main technical parameters of modern electric locomotives in Russia. The renewal of the locomotive complex directly affects the quality of the transportation process. Due to the growing volume of cargo transportation, the intensity of passenger train traffic between large cities, the growth of transit container traffic, the existing dilapidated rolling stock needs updating to be ready for the annually increasing demand for rail transportation.

Analysis of failures in the operation of technical means on the example of the landfill of the Northern Railway

2020 ◽  
Vol 1 (4) ◽  
pp. 345-351
Author(s):  
O. V. Bykova
Keyword(s):  
Power Supply ◽  
Railway Track ◽  
Rolling Stock ◽  
Technical Equipment ◽  
Railway Transport ◽  
Available Bandwidth ◽  
Regulatory Documents ◽  
Transportation Process ◽  
Analysis Of Failures

Discussed issues that affect the reliability of various elements of the infrastructure of railway transport, such as the railway track, power supply devices, artificial structures, rolling stock, automation devices, telemechanics and communications. The main technical devices of railway transport are listed. The classification of failures in the operation of technical means of transport is given, depending on their category; classification of technical equipment, the failures of which are subject to obligatory accounting or to be accounted for in cases of their influence on the transportation process in accordance with regulatory documents in force in railways. As a result of working with the initial data on failures that caused train delays, the main services involved in the occurrence of failures in the operation of technical equipment at the Northern Railway training ground were identified; also provides an analysis of failures in the operation of technical equipment in the regions of the Northern Railway. Classifier of the causes of failures in the operation of technical facilities by services and the causes of the occurrence on the Northern Railway, which most failures fall on, is formed; identified the main reasons for the failure of the relevant units of the railway transport. The dependence of the available bandwidth on the reliability coefficient is given.

СORRUPTION COMPONENT IN RAILWAY TRANSPORT ACTIVITIES: ROLE SEGMENT AND CONCEPTUAL ASPECT

2021 ◽  
Vol 2 (2) ◽  
pp. 132-140
Author(s):  
Vitaliy Kadala ◽  
◽  
Olena Guzenko ◽  
Keyword(s):  
Small Businesses ◽  
Cash Flows ◽  
Legal Framework ◽  
Influential Factors ◽  
Rolling Stock ◽  
Transport Sector ◽  
Railway Transport ◽  
Transport Services ◽  
The One ◽  
High Level

Domestic railway transport suffers from a number of problems that hinder its development. At the same time, the manifestations of corruption intensified, which resulted in the violation of the planned development plans for the future. As a rule, railway transport must function safely, combine the interests of the country with the interests of persons using transport services, promote competition, ensure equal access to its strategic infrastructure, as well as sustainable operation in a special period. However, every year the problems of transport industry development deepen, on the one hand, low level of fixed assets renewal, high level of rolling stock wear, low density of railways, low coefficient of electrification of railways, low speed of cargo delivery, technical and technological backwardness of infrastructure; on the other hand - a high level of transport capacity of GDP, transport services, low share of wages in the provided transportation service, air pollution and a high level of final energy consumption. Only these factors indicate the need for immediate implementation of measures that can ensure the reform of the system of organization of operation and management of the railway transport sector. One of the rather influential factors in slowing down the process of renewing the transport sector is corruption, which reduces cash flows for this type of work, as well as a certain level of imperfection of the legal framework, which should provide tools for anti-corruption actions. Studying the problem of corruption, scholars have drawn attention to different positions on the interpretation of it as a conceptual category. The research emphasizes the expediency and need to clarify the conceptual framework from the standpoint of corruption, which will allow politicians, scientists, top management of large, medium and small businesses operating in the railway sector to make decisions on a more substantive basis. Attention is drawn to the existing scientific positions on the interpretation of the definition of “corruption” with coverage of existing regulations aimed at overcoming it. The author's vision of the essential characteristic of the definitions “corruption in the field of railway transport” and “corruption event on the railway” is offered.

scholarly journals Specialized railway carriage for grain

2021 ◽  
Vol 264 ◽  
pp. 05059
Author(s):  
Yadgor Ruzmetov ◽  
Dilmira Valieva
Keyword(s):  
Traffic Safety ◽  
Metal Structure ◽  
Operating Costs ◽  
Rolling Stock ◽  
Railway Transport ◽  
Railway Network ◽  
Transportation Process ◽  
Contractual Agreements ◽  
The Republic ◽  
Bearing Structure

This article deals with the worked out specialized railway carriage for grain for the transportation process throughout the Republic of Uzbekistan railway network, with the unconditional provision of train traffic safety, which is one of the most important components of the rolling stock of railway transport. The features of the load-bearing structure of the railway carriage for grain are that it is made based on a four-axle platform and a universal container. Evaluation of the strength of the metal structure of the grain car was carried out following the requirements of the “Standards for the calculation and design of new and modernized cars of the railways of the Ministry of Railways with a gauge of 1520 mm (non-self-propelled)”. Based on theoretical studies, it was justified that the design of a railway carriage for grain with a capacity of 83.6 m3 and a carrying capacity of 65 tons. For the first test of a railway carriage for grain, the number 43925684 was assigned. The proposed new grain carriage will reduce operating costs and reduce rolling stock downtime during reloading operations. It will create the possibility of fulfilling contractual agreements drawn up for small volumes of traffic within the country.

Vivid Imagers Are Better at Detecting Salient Changes

2006 ◽  
Vol 27 (4) ◽  
pp. 218-228 ◽  
Author(s):  
Paul Rodway ◽  
Karen Gillies ◽  
Astrid Schepman
Keyword(s):  
Individual Differences ◽  
Change Detection ◽  
Visual Imagery ◽  
Detection Task ◽  
Level Of Detail ◽  
Detection Accuracy ◽  
Change Detection Task ◽  
Term Change ◽  
High Level

This study examined whether individual differences in the vividness of visual imagery influenced performance on a novel long-term change detection task. Participants were presented with a sequence of pictures, with each picture and its title displayed for 17  s, and then presented with changed or unchanged versions of those pictures and asked to detect whether the picture had been changed. Cuing the retrieval of the picture's image, by presenting the picture's title before the arrival of the changed picture, facilitated change detection accuracy. This suggests that the retrieval of the picture's representation immunizes it against overwriting by the arrival of the changed picture. The high and low vividness participants did not differ in overall levels of change detection accuracy. However, in replication of Gur and Hilgard (1975) , high vividness participants were significantly more accurate at detecting salient changes to pictures compared to low vividness participants. The results suggest that vivid images are not characterised by a high level of detail and that vivid imagery enhances memory for the salient aspects of a scene but not all of the details of a scene. Possible causes of this difference, and how they may lead to an understanding of individual differences in change detection, are considered.

Assessment of professional risk of health of workers of the enterprise for repair of railway carriage

2020 ◽  
pp. 9-19
Author(s):  
O. Klepikov ◽  
A. Boreyko ◽  
G. Kurenkova
Keyword(s):  
Relative Risk ◽  
Working Conditions ◽  
Light Level ◽  
Occupational Risk ◽  
Rolling Stock ◽  
Joint Stock Company ◽  
Stock Company ◽  
Production Factors ◽  
Object Of Study ◽  
High Level

The aim of the study was to assess the professional risk of developing diseases in workers of the railway car repair enterprise. The Voronezh Car Repair Plant, a branch of Vagonremmash Joint-Stock Company, was chosen as the object of study. Methods: «The methodology for calculating individual occupational risk depending on the working conditions and the health status of the employee», developed by the Klin Institute for Protection and Working Conditions in conjunction with the Research Institute of Occupational Medicine (2013), the main professions; cohort study with the calculation of the relative risk of morbidity with temporary disability, the odds ratio, the etiological share of factors in the formation of morbidity (group size: 250 people, experimental group — workers of the main specialties, 95 people — comparison group). Results. According to the research results, the priority factors of occupational health risk include: chemical, noise, heating microclimate, low light level. For certain professions, the share of the contribution of priority factors to the risk profile (PV) reaches 40 %. The indicator of individual occupational risk is 0.12 to 0.26 units. The high level of professional risk (0.22 ÷ 0.26) is characterized by the working conditions of the mechanics for the repair of rolling stock, machine tools (woodworking), casters (metal), thermists, plastic casters. In professional groups with medium and high risk, the indicator of the relative risk of morbidity with temporary disability is higher than 1 (RR = 1.75 and 1.39, respectively), and the etiological share of production factors in the formation of diseases is from 27.95 (subgroup with secondary professional risk) up to 42.88 % (a subgroup with high professional risk), which indicates the professional condition of the disease. Discussion. In general, our data are consistent with the results of similar studies conducted earlier at the car building and car repair enterprises. In order to ensure hygienically safe working conditions and preserve the health of workers, it is necessary to reduce the level of exposure to production factors, including through the introduction of modern equipment and improvement of technological processes.

Coordination of technology of railway operation of the Republic of Tajikistan and organization of railways in international traffic

2018 ◽  
Vol 77 (4) ◽  
pp. 211-217 ◽  
Author(s):  
P. N. Pulatov
Keyword(s):  
Rolling Stock ◽  
Railway Transport ◽  
Transport Services ◽  
Railway Infrastructure ◽  
External Conditions ◽  
The Republic ◽  
Railway Operation ◽  
Required Quality

Current geopolitical and economic conditions for the functioning of railway transport in most post-Soviet states are such that it is extremely difficult to provide required quality of transport services and break-even operations at high expenses for maintaining the railway infrastructure and rolling stock. Dynamics of transportation of the Tajik Railway (TSR) is shown, which displays that most of its sections are classified as low-intensity ones. The paper proposes methodical principles, setting and qualitative analysis of the task of rationalization of operational work and organization of car flows for international transportation, taking into account the specifics of the Tajik Railway. There is a problem of complex maintenance of the efficiency of operational work in modern conditions based on the synthesis of the tasks of self-management (rational internal operational technology of the Tajik Railway) and coordination tasks (technological interaction with railway administrations of other states). Author substantiated the necessity of solving this problem. Proposed classification of technological restrictions and controlled variables in the performance of transport takes into account methods for changing external conditions for the functioning of the railway landfill and methods for increasing internal efficiency of its operation. The search for the solution of the problem involves direct search of variants along its ordered set with clipping of groups of variants that do not correspond to constraints, with the subsequent finding of compromise control over a set of effective alternatives.

Consent

2018 ◽  
Author(s):  
Martin Krzywdzinski
Keyword(s):  
Production Systems ◽  
Employee Behavior ◽  
Labor Disputes ◽  
Performance Expectations ◽  
The Third ◽  
The Core ◽  
Core Requirements ◽  
High Level

This chapter deals with the dependent variable of the study: consent. It analyses workplace consent in Russia and China using three indicators that refer to the core requirements of the production systems in automotive companies regarding employee behavior: first, standardized work; and second, compliance with expectations in terms of flexibility, cooperation, and a commitment to improving processes. The third indicator of consent (or the lack of it) is the absence or presence of open criticism, resistance, and labor disputes. The chapter reveals significant and unexpected differences between the Chinese and Russian sites on all three indicators. While the Chinese factories exhibit (with some variance between the companies), a relatively high level of consent, the Russian plants have problems with standardized work, the acceptance of performance expectations, and to some extent with labor disputes.

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