scholarly journals ANALYSIS OF THE CURRENT STATE OF THE CONTAINER TRANSPORTATION MARKET AND WAYS OF ITS DEVELOPMENT ON THE CHINA-UKRAINE-EU ROUTE

2021 ◽  
pp. 70-78
Author(s):  
Denis Lomotko ◽  
Kristina Holovan
Keyword(s):  
Free Market ◽  
Container Terminals ◽  
Rolling Stock ◽  
Container Transportation ◽  
Logistics System ◽  
Container Logistics ◽  
Equipment Safety ◽  
Railway Infrastructure ◽  
The One ◽  
High Level

Considering the globalization of international market relations, the article deals withthe modern market for international container traffic on the China-Ukraine-EU route. Through myresearch, it has become clear that the international rail container transportation market is evolvingrapidly and the development of railway infrastructure is rapidly becoming a lucrative investment.The potential is evident as demonstrated by the fact that China is considering rail containertransportation as an effective alternative to the traditional transportation methods such as sea- andairfreight intermodal container transportation of goods in the nearest future. There are distinctadvantages to rail container transportation, namely: versatility; mobility; distribution of containerhandling equipment; safety of cargo as well as speed of delivery. The article points out the majorproblems related to container transportation in Ukraine: poor condition of highways; deteriorationof rolling stock and railway infrastructure in general; lack of sufficient quantity and low availabilityof modern equipment at container terminals in Ukraine; a low competitive level of transport service;high level of bureaucracy on the railway and in customs clearance. In a free-market economy and,in particular, during industry restructuring, the author proposes a new approach to organizecontainer transportation in Ukraine and for the Ukrainian railway, which should reduce the costs ofrailway traffic , on the one hand, and make it more attractive to the users, thereby confirming itscompetitive advantages. The author came to the conclusion that, owing to the development of therailway infrastructure, namely the construction of a container logistics system and high-speedrailways on the territory of Ukraine, it is possible to not only reach a competitive level of transitstates on the China-EU route but also to take a preferred position as the most economical and fastest means of transit, obtaining a substantial profit and an incentive for the further development of thetransit potential of our country.  

scholarly journals DEVELOPMENT OF UKRAINE’S LOGISTIC SYSTEM: ENVIRONMENTAL CHALLENGES

2018 ◽  
Vol 2018 (9) ◽  
pp. 3-12
Author(s):  
Anatolii MAZARAKI ◽  
◽  
Liudmyla KHARSUN ◽  
Keyword(s):  
Supply Chains ◽  
Logistics System ◽  
Environmental Friendliness ◽  
Environmental Orientation ◽  
Waste Products ◽  
Environmental Challenges ◽  
Positive Tendency ◽  
Negative Impacts ◽  
The One ◽  
High Level

Transformational processes in modern supply chains are experiencing a significant impact of global environmental problems and are focused on increasing the level of efficiency of the supply chains’ operation and ensuring the competitiveness of goods passing through them towards the end consumer. On the one hand, the parameters of all parts of the logistics chains must be in line with the international environmental requirements; on the other hand, compliance with the principles of environmental friendliness serves as a prerequisite for meeting the needs of modern consumers with a high level of environmental awareness. Logistics operations are a source of negative impacts on the natural environment. First of all, this concerns greenhouse gas emissions during transportation, waste products and packaging materials, noise and dust pollution, landscape changes and the use of natural resources. Therefore, environmental challenges stipulate the cooperation of all participants in supply chains, aimed at creating and implementing the effective environmental strategies and logistics concepts. The need for ecologization of Ukraine’s transport and logistics system is dictated by the need to achieve a high level of its competitiveness as an element of the global supply chain network. And although the domestic logistics system by a number of indicators is characterized by a low level of environmental friendliness, there is a consoling positive tendency to realize the need for an environmental orientation of its development both among the state authorities, and the logistics operators themselves.

Scheduling of Yard Truck Considering Loading and Unloading Simultaneously in an Underground Container Logistics System

2021 ◽  
pp. 036119812110478
Author(s):  
Yinping Gao ◽  
Daofang Chang ◽  
Jun Yuan ◽  
Chengji Liang
Keyword(s):  
Genetic Algorithm ◽  
Container Terminals ◽  
Mixed Integer ◽  
Operating Efficiency ◽  
Adaptive Genetic Algorithm ◽  
Integer Programming Problem ◽  
Logistics System ◽  
Container Logistics ◽  
Loading And Unloading ◽  
Mixed Integer Programming Problem

With the rapid growth of containers and scarce of land, the underground container logistics system (UCLS) presents a logical alternative for container terminals to better protect the environment and relieve traffic pressure. The operating efficiency of container terminals is one of the competitive edges over other terminals, which requires UCLS to be well integrated with the handling process of the storage yard. In UCLS, yard trucks (YTs) serve different handling points dynamically instead of one fixed handling point, and yard cranes (YCs) perform loading and unloading simultaneously. To minimize the total time of handling all containers in UCLS, the mixed integer programming problem is described and solved using an adaptive genetic algorithm (AGA). The convergence speed and accuracy of AGA are demonstrated by comparison with conventional genetic algorithm (GA). Additionally, AGA and CPLEX are compared with different scale cases. Experimental results show that the proposed algorithm is superior to CPLEX in resulted solutions and calculation time. A sensitivity analysis is provided to obtain reasonable numbers of YTs for scheduling between handling points and the storage yard in UCLS.

scholarly journals Technical parameters of high speed lines as the determinant for selection of rolling stock

2018 ◽  
Vol 180 ◽  
pp. 06007
Author(s):  
Jan Raczyński
Keyword(s):  
High Speed ◽  
Point Of View ◽  
Rolling Stock ◽  
High Speed Rail ◽  
Technical Parameters ◽  
Rail Vehicle ◽  
Railway Infrastructure ◽  
The One ◽  
Selection Of

Choosing a high-speed rail vehicle depends on many factors. On the one hand, there are requirements for ensuring the quality of service for passengers, on the other hand, there are constraints resulting from the parameters of available infrastructure. Also a relation of the benefit and financial costs associated with the purchase and the operation of rolling stock is essential. Technical characteristics of vehicles selected for operating a particular system is a compromise between the three groups of requirements. In this article technical parameters of railway infrastructure and rolling stock are classified and then analysed from the TSI requirements point of view.

scholarly journals Freight stations for lines of magnetic levitation

2015 ◽  
Vol 1 (2) ◽  
pp. 38-48
Author(s):  
Vladimir V Kostenko ◽  
Maksim V Chetchuev ◽  
Vladimir P Fyodorov ◽  
Dmitry I Homich
Keyword(s):  
Magnetic Levitation ◽  
Magnetic Suspension ◽  
Container Terminals ◽  
Rolling Stock ◽  
Practical Implementation ◽  
Special Device ◽  
Container Transportation ◽  
Clear Trend ◽  
Stage Of Development ◽  
First Case

At the present stage of development of a transport of magnetic levitation, there is a clear trend of its division by the nature of the traffic flows, i.e. for passenger and cargo transportation. One of the most promising areas of freight maglev transport is container transportation. So far, the aspects of designing the freight stations required for container shipments by this type of transport were not broadly explored. After analyzing the principles and technology of existing container terminals within the traditional rail transport, it can be concluded that the maglev container stations should be constructed on the basis of conditions to ensure the possibility of the three main types of operations: freight, marshaling, and maintenance of rolling stock. Meanwhile, the execution of these operations will require the traditional devices, which are used at railway container terminals, and specific, which related to work of transport on magnetic suspension. Particular attention should be paid to the decision-making on the schemes of maglev freight stations. With the current state of the problem, it is logical to assume that the first types of these stations and sites for loading and unloading of containers will be designed according to deadlock schemes. The main requirement for schemes of such stations would be the support of container flows promotion and their processing. The article suggested three possible options for the organization of the maglev container stations, ensuring fulfillment of this requirement. The main difference between the considered options is the way to move platforms from one track to another. In the first case, it is proposed to use a magnetic switch and a deadend rail track, in the second option - a special device that works similarly to transborder, while the third option - a loop route. Analysis of the developed variants showed that in the short term, the greatest likelihood of practical implementation would have a version with the transborder device type. On this basis, the article proposed two principal schemes of maglev freight stations that differ by the processing capacity. For each scheme, the detailed technology of work is considered.

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.

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.

Relations between carbon removal rates, biofilm size and density of a novel anaerobic reactor: the inverse turbulent bed

2000 ◽  
Vol 41 (4-5) ◽  
pp. 253-260 ◽  
Author(s):  
P. Buffière ◽  
R. Moletta
Keyword(s):  
Removal Rate ◽  
Removal Rates ◽  
Carbon Removal ◽  
Biofilm Growth ◽  
Loading Rates ◽  
Biomass Activity ◽  
High Turbulence ◽  
The One ◽  
High Level ◽  
Very High

An anaerobic inverse turbulent bed, in which the biogas only ensures fluidisation of floating carrier particles, was investigated for carbon removal kinetics and for biofilm growth and detachment. The range of operation of the reactor was kept within 5 and 30 kgCOD· m−3· d−1, with Hydraulic Retention Times between 0.28 and 1 day. The carbon removal efficiency remained between 70 and 85%. Biofilm size were rather low (between 5 and 30 μm) while biofilm density reached very high values (over 80 kgVS· m−3). The biofilm size and density varied with increasing carbon removal rates with opposite trends; as biofilm size increases, its density decreases. On the one hand, biomass activity within the reactor was kept at a high level, (between 0.23 and 0.75 kgTOC· kgVS· d−1, i.e. between 0.6 and 1.85 kgCOD·kgVS · d−1).This result indicates that high turbulence and shear may favour growth of thin, dense and active biofilms. It is thus an interesting tool for biomass control. On the other hand, volatile solid detachment increases quasi linearly with carbon removal rate and the total amount of solid in the reactor levels off at high OLR. This means that detachment could be a limit of the process at higher organic loading rates.

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.

scholarly journals Testing Todd: family types and development

2021 ◽  
pp. 1-18
Author(s):  
Jerg Gutmann ◽  
Stefan Voigt
Keyword(s):  
Rule Of Law ◽  
Civil Society Organizations ◽  
The Rule Of Law ◽  
State Fragility ◽  
Family Types ◽  
Low Levels ◽  
Parsimonious Model ◽  
The One ◽  
High Level

Abstract Many years ago, Emmanuel Todd came up with a classification of family types and argued that the historically prevalent family types in a society have important consequences for its economic, political, and social development. Here, we evaluate Todd's most important predictions empirically. Relying on a parsimonious model with exogenous covariates, we find mixed results. On the one hand, authoritarian family types are, in stark contrast to Todd's predictions, associated with increased levels of the rule of law and innovation. On the other hand, and in line with Todd's expectations, communitarian family types are linked to racism, low levels of the rule of law, and late industrialization. Countries in which endogamy is frequently practiced also display an expectedly high level of state fragility and weak civil society organizations.

scholarly journals The S66 Non-Covalent Interactions Benchmark Reconsidered Using Explicitly Correlated Methods Near the Basis Set Limit

2018 ◽  
Vol 71 (4) ◽  
pp. 238 ◽  
Author(s):  
Manoj K. Kesharwani ◽  
Amir Karton ◽  
Nitai Sylvetsky ◽  
Jan M. L. Martin
Keyword(s):  
Computational Cost ◽  
The Other ◽  
Basis Set ◽  
Basis Sets ◽  
Explicitly Correlated ◽  
Non Covalent Interactions ◽  
Explicitly Correlated Methods ◽  
The One ◽  
High Level ◽  
Covalent Interactions

The S66 benchmark for non-covalent interactions has been re-evaluated using explicitly correlated methods with basis sets near the one-particle basis set limit. It is found that post-MP2 ‘high-level corrections’ are treated adequately well using a combination of CCSD(F12*) with (aug-)cc-pVTZ-F12 basis sets on the one hand, and (T) extrapolated from conventional CCSD(T)/heavy-aug-cc-pV{D,T}Z on the other hand. Implications for earlier benchmarks on the larger S66×8 problem set in particular, and for accurate calculations on non-covalent interactions in general, are discussed. At a slight cost in accuracy, (T) can be considerably accelerated by using sano-V{D,T}Z+ basis sets, whereas half-counterpoise CCSD(F12*)(T)/cc-pVDZ-F12 offers the best compromise between accuracy and computational cost.

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