scholarly journals Criteria for the selection of railway stations for the placement of freight terminals for handling “Cold Express” container trains

2021 ◽  
Vol 80 (2) ◽  
pp. 100-107
Author(s):  
D. Yu. Romenskiy ◽  
K. I. Shvedin ◽  
A. M. Nasybullin ◽  
M. V. Romenskaya
Keyword(s):  
Container Terminal ◽  
Investment Project ◽  
Operational Parameters ◽  
Track Reconstruction ◽  
Railway Stations ◽  
Large Cities ◽  
Container Transport ◽  
Container Logistics ◽  
Pedestrian Bridges ◽  
Selection Of

An approach to the selection of locations for compact container sites at railway stations of main railway lines for carrying out freight operations with transit container trains is described on the example of an investment project of the JSC “Russian Railways” for organizing transportation by “Cold Express” trains. To ensure the possibility of organizing the motion of container freight trains with its reception at the station directly to the loading and unloading front, certain conditions listed in the article must be met. The approach is based on the principle of minimizing costs and maintaining the operational parameters of the reconstructed railway stations while implementing the principles of container logistics. It was concluded that the reference railway station for placing on it a container terminal specializing in handling container transport trains (including “Cold Express” trains) should be a station that has a little-used electrified receiving-departure track with a length of at least 1050 m, for which there is the possibility of receiving and departure trains in all directions and near which there is an open freight area with a hard surface with the possibility of approaching trucks. Also, conditions for the unimpeded operation of loading equipment should be ensured, i. e. there should be no obstacles in the form of pedestrian bridges and overhead catenary supports. On the pilot route Vladivostok—Moscow—St. Petersburg, 18 stations were selected, located in large cities or tend towards large cities. The analysis showed that in real conditions there are no stations that fully meet these criteria, from which it was concluded that it was necessary to carry out capital-intensive measures of various volumes associated with the achievement of the necessary parameters of the stations, such as electrification or lengthening of the track, reconstruction of the station necks, arrangement of the site, car entrances, as well as other measures.

About Determing the Microhardness of Composite Coatings

2021 ◽  
Vol 1037 ◽  
pp. 486-493
Author(s):  
Sergey Y. Zhachkin ◽  
Anatoly I. Zavrazhnov ◽  
Nikita A. Penkov ◽  
George V. Kudryavtsev ◽  
Paul V. Tsisarenko
Keyword(s):  
Composite Coating ◽  
Mechanical Treatment ◽  
Composite Coatings ◽  
Operational Parameters ◽  
Deposition Parameters ◽  
Cylinder Liners ◽  
High Degree ◽  
Applied Coating ◽  
Positive Effect ◽  
Selection Of

One of the fundamental tasks in restoring the operability of cylinder liners is the application of a composite coating with a predetermined microhardness value. The authors have developed a technology for applying composite coatings based on iron on cylindrical surfaces, which makes it possible to vary the physical, mechanical and operational parameters of the formed iron-containing coating due to the planned selection of the deposition parameters. This eliminates the need for mechanical treatment of the applied coating, which is the reason for the high degree of rejection parts that undergo the iron-on operation. Contact interaction of the working tool with the formed layer of the composite coating has a positive effect on the value of its roughness.

scholarly journals COMPARATIVE ANALYSIS AND SELECTION OF TECHNOLOGY OF DEVICE OF FENCING METAL STRUCTURES IN CONSTRUCTION OF UNDERGROUND STRUCTURES

2021 ◽  
Vol 9 (1) ◽  
pp. 26-30
Author(s):  
Elena Korol ◽  
Zarina Chipova
Keyword(s):  
Underground Structures ◽  
Engineering Structures ◽  
Metal Structures ◽  
Large Cities ◽  
Long Time ◽  
Complex Engineering ◽  
Transport Problems ◽  
The Cost ◽  
Transport Complex ◽  
Selection Of

Urban motor transport complex engineering structures, the construction of which is carried out for a long time, and the cost is often tunnels of structures. Despite this, urban tunnels remain in demand as a means of solving transport problems, especially for large cities, in areas with dense urban development or an established architectural appearance, the violation of which is unacceptable. The construction of tunnels makes it possible to increase the throughput of highways, especially in places of large intersections, one of the diverting high-intensity transit traffic flows underground, making them invisible on the surface and thus not disrupting the existing historical appearance of the area.

scholarly journals Specific aspects of the retrofitting design and seismic assessment of a heritage pedestrian bridge

2020 ◽  
Vol 63 (4) ◽  
pp. 65-77
Author(s):  
Emil Yanev
Keyword(s):  
Optimal Solution ◽  
Investment Project ◽  
Hydroelectric Power Plant ◽  
Normal Operation ◽  
Design Solution ◽  
Original Structure ◽  
Hydroelectric Power ◽  
Pedestrian Bridge ◽  
The Subject ◽  
Selection Of

The purpose of this study is to establish a suitable structural system for the restoration of the destroyed part of the pedestrian bridge, which is a part of a hydrocomplex built along the Arda River (Bulgaria), and to improve the vulnerable details in the original structure, taking into account the seismic hazard on the site. The decision is also dictated by the choice of a construction method that does not interfere the Hydroelectric Power Plant (HPP) that is built along the river with the normal operation of which the subject is connected. The appropriate selection of materials and modelling of the overall behaviour of the old and new parts of the bridge are the basis of the optimal solution for interference with the structure and the possibility of extending its service life. It is also important to preserve the visual unity of the whole structural complex, thus preserving the original appearance and good construction practice from the time they have been built during the middle of the 20th century This design solution is part of an investment project of "Risk Engineering" Ltd.

The Location of Services Involved with International Trade

1987 ◽  
Vol 19 (5) ◽  
pp. 687-700 ◽  
Author(s):  
K O'Connor
Keyword(s):  
Physical Activity ◽  
Communication Technology ◽  
Port Development ◽  
Large Cities ◽  
Producer Service ◽  
The Usa ◽  
Service Location ◽  
Statistical Record ◽  
Selection Of

Services that link buyer and seller across nations and continents have long been a part of city and port development, but have not attracted much research interest, perhaps because they remain (like their statistical record) ‘invisible’. Technical and structural change in the organisation of shipping, reflected largely in containerisation, have changed the context for these services and they have responded in a variety of ways. Data in this paper trace the location of a selection of these services in the USA and Australia, indicating a separation between services and negotiations on aspects of trade services, and new patterns of physical activity in trade. It is suggested that this separation may be facilitated by the standardisation that has come with containerisation, the importance of intercorporate linkages, the role of official markets, and the application of modern communication technology. These aspects account for the clustering of services in large cities and their separation from day-to-day trade business, and could provide insights for producer-service location in general. The paper indicates the need for survey work to test these ideas.

Adaptive Grinding Strategy Development

2016 ◽  
Vol 874 ◽  
pp. 64-69
Author(s):  
Xun Chen
Keyword(s):  
Strategy Development ◽  
Grinding Wheel ◽  
Operational Control ◽  
Operational Parameters ◽  
Control Logic ◽  
Wheel Wear ◽  
Materials Properties ◽  
Grinding Performance ◽  
Grinding Conditions ◽  
Selection Of

Grinding performance can be influenced by various grinding conditions including workpiece materials properties, grinding wheel properties, grinding operational parameters and dressing operational parameters. In order to achieve stable optimal grinding performance, it is important to select the most suitable operational control parameters to match grinding requirement and to minimize the effects of grinding wheel wear and other changes in the process environment. The paper presents a simple adaptive control logic strategy for the selection of dressing and grinding conditions based on available sensing techniques. In this study, desirable grinding behaviour is discussed to demonstrate how to extract useful process information to guide process parameter adjustment for a stable satisfactory grinding performance.

scholarly journals An Evaluation Model of Quantitative and Qualitative Fuzzy Multi-Criteria Decision-Making Approach for Location Selection of Transshipment Ports

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Ji-Feng Ding ◽  
Chien-Chang Chou
Keyword(s):  
Decision Making ◽  
Distance Measure ◽  
Evaluation Model ◽  
Multi Criteria Decision Making ◽  
Location Selection ◽  
Container Logistics ◽  
Proposed Model ◽  
Fuzzy Mcdm ◽  
Selection Of

The role of container logistics centre as home bases for merchandise transportation has become increasingly important. The container carriers need to select a suitable centre location of transshipment port to meet the requirements of container shipping logistics. In the light of this, the main purpose of this paper is to develop a fuzzy multi-criteria decision-making (MCDM) model to evaluate the best selection of transshipment ports for container carriers. At first, some concepts and methods used to develop the proposed model are briefly introduced. The performance values of quantitative and qualitative subcriteria are discussed to evaluate the fuzzy ratings. Then, the ideal and anti-ideal concepts and the modified distance measure method are used in the proposed model. Finally, a step-by-step example is illustrated to study the computational process of the quantitative and qualitative fuzzy MCDM model. The proposed approach has successfully accomplished our goal. In addition, the proposed fuzzy MCDM model can be empirically employed to select the best location of transshipment port for container carriers in the future study.

The Selection of Priority Pipe Sections for Sewer Network Renovation

2014 ◽  
Vol 580-583 ◽  
pp. 2398-2402 ◽  
Author(s):  
Vladimir Orlov ◽  
Alexey Andrianov
Keyword(s):  
Strategic Planning ◽  
Large Cities ◽  
Mathematical Algorithm ◽  
Pipe Networks ◽  
Sewer Network ◽  
Pipe Section ◽  
Wide Range ◽  
Water Disposal ◽  
Specific Section ◽  
Selection Of

Operative and planned rehabilitation of old pipe networks, including water disposal systems, is a relevant objective of modern city. It is especially difficult to make pipeline reconstruction works in large cities with high construction area density, transport moving intensity, also full of multifunctional both underground and above-ground infrastructure. All these factors set a lot of restrictions for open excavation methods of pipelines repair and reconstruction. That is the reason why trenchless technologies are becoming more popular among the engineers. A wide range of trenchless techniques provides people with convenient method of fast and effective reconstruction processes in comparison with durable and inconvenient open excavation. This fact leads to a necessity of creating a strategic planning of pipeline rehabilitation. This article presents how to operate the first step of such strategic planning – choosing the priority pipe section for sewer network renovation. The most convenient way for choosing one specific section from a great range is to use a program package based on mathematical algorithm that takes into account a quantity of different factors. This paper presents such a program created by authors and describes its interface, date input and processing.

scholarly journals DAS CARROÇAS DE CINCO SOUS PARA A COMODIDADE DOS BURGUESES: PARIS, SÃO PAULO E O DESAFIO HISTÓRICO DA MOBILIDADE URBANA

2013 ◽  
Vol 5 (1) ◽  
pp. 130-163
Author(s):  
Leandro Fraga Guimaraes ◽  
Jaciara Martins Fontes Cruz
Keyword(s):  
Urban Planning ◽  
20Th Century ◽  
Secondary Data ◽  
Sao Paulo ◽  
São Paulo ◽  
Urban Mobility ◽  
Large Cities ◽  
Core Elements ◽  
Selection Of

Both Paris and São Paulo are cities which feature notably distinct occupation histories. As of secondary data and by means of a bibliographical review that sought to collate standpoints of authors engaged in the fields of urban planning and mobility - in addition to urban mobility systems ideation and development historians and scholars – the historical report wherein mobile impairments evolved at each of the mentioned large urban centres, was summarized into a case study, encompassing from emergence to the 20th. Century - a period both cities experienced pivotal transformations - although these took place in substantially diverse manners. To this effect, reasoning was also gathered so as to, in overview, characterize the challenges that urban mobility, for thousands of years, continues to bring about to cohabitation within restricted space, at large cities. Much conversely to being a recent matter of issue, it is a challenge that remains and changes, although some of its core elements have been found to be breathtakingly perseverant throughout history. Conclusion resides in comments relative to a selection of contemporary alternatives that are currently in use at both cities so as to better direct the addressing of the urban mobility issue and also includes a set of alternatives deemed best successful than that known as solutions to this problem which strong holds its very presence at all major cities of the globe.

scholarly journals Container Boom in the Port of Koper

1970 ◽  
Vol 24 (2) ◽  
pp. 169-175 ◽  
Author(s):  
Elen Twrdy ◽  
Igor Trupac ◽  
Jurij Kolenc
Keyword(s):  
Central And Eastern Europe ◽  
Container Terminal ◽  
Market Potential ◽  
Eastern European ◽  
Absolute Priority ◽  
Container Transport ◽  
The North ◽  
Current State ◽  
East West ◽  
The Eu

For the Port of Koper the Central and Eastern European market is very important. The Port of Koper is especially interesting for goods flows relating to the exchange of goods on the East – West route (and vice versa) and bound for the EU, in particular to the catchment area of the North Adriatic ports.The year 2009 was a difficult year for business, especially due to the uncertain international economic situation. In the first nine months of 2010, 16% more goods were handled in the Port of Koper than in the same period in 2009. The container transport especially exploded in tons (45% increase) as well as in container units (40% increase). Within this period they handled 355,000 TEUs (new record) in the container terminal (214,000 TEUs in the same period on the seventh pier in Trieste).The growth of container transport in the Port of Koper as well as the beginning of construction on the new container terminal have made the reconstruction and extension of the current container terminal an absolute priority. The extension is in line with the estimated growth of traffic as well as with the exploitation of present and future terminal capacities.This paper aims to present and analyse: (I) supply chains of the flow of containerised goods through the Port of Koper to/from the countries of Central and Eastern Europe; (II) the changes which enable this boom, current state and strategies to handle even more containers in the future; (iii) market potential, current and future investments in new capacities.

scholarly journals Reasons of Weakeningh Pupils’ Learning Motivation: Attitude of Parents

Pedagogika ◽  
2016 ◽  
Vol 124 (4) ◽  
pp. 117-128
Author(s):  
Violeta Jegelevičienė ◽  
Odeta Merfeldaitė ◽  
Asta Railienė
Keyword(s):  
School Attendance ◽  
Learning Motivation ◽  
Motivation To Learn ◽  
Large Cities ◽  
Learning Time ◽  
Academic Achievements ◽  
Multistage Sampling ◽  
Education Process ◽  
Selection Of

One of the major challenges faced by school pedagogues is to increase pupils’ motivation which affects the pupils’ attitude toward school, relations with teachers, learning time and efforts, involvement and participation in the education activities, academic achievements, behaviour and many other factors. According to the research, the pupil’s learning motivation and achievements are influenced by the parents’ engagement into the education process. However, in Lithuania there is still lack of continuous relationship between the school and family, including communication, cooperation and coordination. The aim of this article is to reveal the parents’ view on the involvement in the education process by promoting learning motivation of pupils. The article analyses how parents identify the phenomenon of weakening pupils’ learning motivation and what is the role of the class tutor in cooperating with parents while solving the learning motivation problem. The research was carried out in February–May 2015 and involved n = 418 parents of children studying in grades five and eight. The selection of parents was based on the probability sample: multistage sampling. In order to empirically justify the attitude of parents toward the reasons of pupils’ weakening learning motivation, it was necessary to identify the assumptions of their involvement in the solution of this problem. The inquiry was carried out only of parents of five and eight grade pupils of the large cities, therefore the conclusions shall not be applicable to the entire parents’ population. Pursuant to the research and according to the parents’ opinion the motivation of pupils’ learning is decreasing because of the curriculum and education process: the amount of learning load and organisation of the learning process. A very important factor of weakening learning motivation is a pupil himself/herself: his/her abilities and school attendance. Usually the parents treat weakening of learning motivation with learning achievements or with the information received from school. Involvement into the education process is usually promoted by the class tutor whose activities help parents identify the phenomenon of weakening pupils’ motivation to learn.

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