scholarly journals Analysis of rail yard and terminal performances

2014 ◽  
Vol 8 (2) ◽  
pp. 178-200 ◽  
Author(s):  
Marin Marinov ◽  
Leonardo Di Giovanni ◽  
Giulia Bellisai ◽  
Julian Clevermann ◽  
Anastasia Mastellou ◽  
...  

One of the latest trends in the transport field is the increasing interest for the rejuvenation of the railway. It is considered to be a logical consequence of the gradual switch towards a more sustainable future in transports. Terminals and stations are considered to be the junction points between the various lines that constitute the railway network and can simply be described as points of arrival, departure and interchange of passengers or commodities. The most commonly used indicators that measure the level of their performance are time and cost. This study aims at exploring possible improvements that could be implemented to the infrastructure and the operation of terminals and stations in order to increase the efficiency level. Firstly, drawing upon grounded theory about rail infrastructure and terminals, a description is conducted, followed by a comparative analysis of the different types of existing terminals and stations. Secondly, the suggested improvements are presented in accordance with their time frame completion. The main contribution of this study is to illustrate the high significance of terminals, stations and yards, acknowledging them as crucial parts of the railway network, because as characterized and demonstrated in this study, their performance are key factors to the whole network performance, making the identification of their critical points and respective possible solutions, the final objective of this paper. In addition to this, emphasis is given to the need of improving and developing the existing terminal infrastructure and operations.

2020 ◽  
Vol 55 ◽  
pp. 65-87
Author(s):  
Laura Gilabert Sansalvador

Over more than ten centuries, Maya vaults had great technical developments that allowed to achieve constructive and structural advanced systems and increasingly improved forms. One of the key factors to consider when studying its temporal evolution and the different regional variants is the stone vaults shape. This work is based on data collected during fieldwork and comparative analysis of a wide sample of vaults from different geographical zones and chronological periods, and as a result proposes a classification of the Maya stone vaults. The study of the influence of stereotomy on its form and the analysis of the use of different types of stone vaults by zones offer new data to understand the technological evolution of vaulted Maya architecture and the transfers of building knowledge.


2020 ◽  
Vol 3 (1) ◽  
pp. 439-449
Author(s):  
Małgorzata Białas ◽  
Joanna Duda ◽  
Anna Surowiec

Abstract A comparative analysis of factors of vacuum rail’s competitiveness in Poland relative to other means of transport is presented. Only such determinants of competitiveness as price and time of travel are focussed on and compared with alternative solutions on selected routes. Impact of price changes on effectiveness of vacuum rail construction is additionally analysed. Investment effectiveness in the case of vacuum rail is considered in the long time-frame, given the time of infrastructure depreciation and of due return on sources of committed financing. The analysis helps to identify key factors which may decide competitive advantage of vacuum rail in Poland over other means of transport.


Author(s):  
Ritu Khandelwal ◽  
Hemlata Goyal ◽  
Rajveer Singh Shekhawat

Introduction: Machine learning is an intelligent technology that works as a bridge between businesses and data science. With the involvement of data science, the business goal focuses on findings to get valuable insights on available data. The large part of Indian Cinema is Bollywood which is a multi-million dollar industry. This paper attempts to predict whether the upcoming Bollywood Movie would be Blockbuster, Superhit, Hit, Average or Flop. For this Machine Learning techniques (classification and prediction) will be applied. To make classifier or prediction model first step is the learning stage in which we need to give the training data set to train the model by applying some technique or algorithm and after that different rules are generated which helps to make a model and predict future trends in different types of organizations. Methods: All the techniques related to classification and Prediction such as Support Vector Machine(SVM), Random Forest, Decision Tree, Naïve Bayes, Logistic Regression, Adaboost, and KNN will be applied and try to find out efficient and effective results. All these functionalities can be applied with GUI Based workflows available with various categories such as data, Visualize, Model, and Evaluate. Result: To make classifier or prediction model first step is learning stage in which we need to give the training data set to train the model by applying some technique or algorithm and after that different rules are generated which helps to make a model and predict future trends in different types of organizations Conclusion: This paper focuses on Comparative Analysis that would be performed based on different parameters such as Accuracy, Confusion Matrix to identify the best possible model for predicting the movie Success. By using Advertisement Propaganda, they can plan for the best time to release the movie according to the predicted success rate to gain higher benefits. Discussion: Data Mining is the process of discovering different patterns from large data sets and from that various relationships are also discovered to solve various problems that come in business and helps to predict the forthcoming trends. This Prediction can help Production Houses for Advertisement Propaganda and also they can plan their costs and by assuring these factors they can make the movie more profitable.


2021 ◽  
Vol 13 (2) ◽  
pp. 712
Author(s):  
Andrea Okanović ◽  
Jelena Ješić ◽  
Vladimir Đaković ◽  
Simonida Vukadinović ◽  
Andrea Andrejević Panić

Growing environmental problems and increasing requirements of green jobs force universities around the world not only to transform their curricula but also to enrich existing ones with contents related to the promotion of sustainable development. This paper aims to show the importance of measuring and monitoring the share of green contents in all university activities, as only in that way it is possible to monitor trends and give realistic assessments of their effect and importance. The paper presents a comparative analysis of different types of methodologies for assessing sustainable activities at universities as well as research conducted at the University of Novi Sad in Serbia and its comparison with the University of Gothenburg (Sweden). This research aims to point out the importance of increasing competitiveness in higher education through assessment of green content in a curriculum and its promotion. In this way, through eco-labeling methodology, it would be easier to identify those contents that, in a certain share, contribute to the promotion of sustainable development. Furthermore, this methodology can easily be extended across the country and the region, which would bring positive effects to all stakeholders in higher education.


2021 ◽  
Vol 13 (7) ◽  
pp. 3850
Author(s):  
Ting Liu ◽  
Gabriel Lodewijks

This paper proposed a scheme design for Sydney’s frontport check-in system, which completes check-in and baggage drop-off at Sydney’s Circular Quay, and transports the baggage to Sydney Kingsford Smith Airport by waterway, and provided a strengths, weaknesses, opportunities and threats (SWOT) analysis of Sydney’s frontport check-in system. Using the process method of quality management, the frontport check-in process was divided into three sub-processes: baggage consignment, baggage packing and transportation, and airport baggage handling. The eight key elements of each sub-process such as input, output, resources, and methods, etc. were discussed, the key factors influencing the cost of baggage transportation were analyzed, and the cost control measures such as adopting economic speed, reducing fuel consumption of the main engine, improving the ship loading rate, and raising loading and unloading efficiency were proposed. At the same time, two different types of baggage transportation ships and other parameters that affect the cost such as the number of berths, ships, lifting machineries, and the yard area were analyzed and calculated through calculation cases. This scheme is a beneficial addition to the existing in-town check-in system.


2021 ◽  
Author(s):  
madinah shamsu ◽  
Tesfaye Segni ◽  
Olurotimi Joaquim ◽  
Oluwatosin Fagbuyi ◽  
Landon Onyebueke

2021 ◽  
Vol 70 (1) ◽  
pp. 31-41
Author(s):  
Dawid Goździk ◽  
Bartosz Fikus ◽  
Jacek Kijewski

Manufacturers offer different types of ballistic barrels made in according to various standards. The paper presents comparison of three types of ballistic barrels: pressure, velocity and accuracy made according to C.I.P. and NATO EPVAT standards. Projectile velocities in a several measuring points on the flight path and propellant gas pressures in the barrels were measured and compared. The main aim of the article is to discuss whether all types of barrels to conduct most ballistic tests are needed, or whether one, the most universal in a specific caliber is enough. Keywords: mechanical engineering, ballistics, firearm, ammunition researches, ballistic properties


2019 ◽  
Vol 13 (2) ◽  
pp. 342-362
Author(s):  
Xiaodong Yuan ◽  
Xiaotao Li

Purpose The purpose of this paper is to explore how an organization can combine different types of open innovations and what are the key factors that may influence the combination of different open innovations. Design/methodology/approach The basic methodology of this paper is the longitudinal inductive analysis within the conceptual framework of the open innovation proposed by Dahlander and Gann (2010). In this case study of Xiaomi Tech Inc., the open innovation combination is investigated through examining 25 new products created between August 2010 and December 2016 in terms of four general types: acquiring, sourcing, selling and revealing open innovation. Findings In practice, the combination of different types of open innovations can be realized. A firm may combine different open innovations at three levels: a single product level, a related product cluster level and a company level. In addition, different open innovations can be combined in diverse modes. The purpose of combining different types of open innovations is to overcome the disadvantages of each type and to exploit the advantages of all different types. Many factors may affect a firm’s option of how to combine open innovations. At different development stages, a firm may make and implement corresponding strategic direction based on its innovation capacity and internal resource. For a given strategy, the firm needs to create profits and manage intellectual property in the implementation of open innovations. These factors are interacted each other, rather than isolated. Originality/value The findings of this paper are helpful for better understanding how and why an organization can combine different types of open innovations. From a managerial point of view, an organization may combine different types of open innovations to leverage advantages and avoid disadvantages of each certain type of open innovation. An appropriate combination of different open innovations can effectively improve new product development.


2021 ◽  
Vol 15 (2) ◽  
pp. 202-213
Author(s):  
Antonina Petrovna Guskova

Recently transposition became the issue of many research papers for being a complicated and sophisticated language phenomenon, and its definition has been broadened. The issue of transposition and the degrees of verb transitivity are the most controversial and difficult ones both in Hungarian and Russian linguistics. This issue may be investigated on different language levels: lexical, syntactic, morphological and on the level of word formation. Taking into account the mobility of parts of speech boundaries in the compared languages we attempt to find the cause of words transitioning from one lexico-grammatical class into another, investigate transposition as a natural phenomenon both for the Hungarian and Russian languages, differentiate transition in parts of the speech system from other language phenomena, solve some contentious issues regarding parts of speech, for example ‘noun-adjective’ relations, and others. Despite having extensive literature concerning nominalization in Russian linguistics and some works in Hungarian linguistics, some aspects are not comprehensively covered in them. For example, different types of transitions from other parts of speech into nouns, thorough semantic and thematic categorization of substantivized words, characteristics of their functioning in texts of different functional styles, principles of creating lexicography, etc. In this article we compare the process of substantivation amidst the system of parts of speech in languages of such different structure as Hungarian and Russian. Comprehensive and comparative study of the process of transition of other parts of speech into nouns allows us to conduct a deeper investigation of each of these languages’ structure and also to reveal typological similarities and differences between them. These languages have not been explored this way so it provides scientific novelty to the research. For the first time we define the main conditions of a systematic process of transposition in Hungarian and Russian and reveal both specific and universal opportunities for transition in the compared languages. We use comparative analysis for researching semantic models of substantivized words, distinguish different types of transitions into nouns and describe structural and stylistic features. Thus, the topic of the research is the grammatical, semantic, structural and stylistic features of substantivized words in Hungarian and Russian. The objective of the study is to discover linguistic nature of substantivation of adjectives, verbs and verbal formations, numerals and pronouns, to find out specific and universal features caused by typological differences of the researched languages. To achieve this goal we need to solve the following problems: determining the place of substantivation in the system of word formation in Hungarian and Russian, discovering how much substantivation and conversion being productive ways of word formation are identical in Russian and Hungarian, distinguishing semantic models of substantivized words and compare them, comparing models of usual and occasional substantivation and determine its productivity, studying their structure which means showing peculiarities of substantivized words’ grammatical structure in Hungarian and Russian, discovering similarities and differences between them and finding adequate models. The research is based on data of dictionaries of Russian and Hungarian languages, examples of fictional texts, live speech and not the least on the idioms. Theoretical importance lies in the following: 1) the research develops the theory of transitivity as we study transposition in two languages of different structures using comparative analysis of substantivized words and taking into account grammatical, semantic and functional aspects; 2) using the materials of two languages of different structures we discover the main conditions of systematic transposition and distinguish its universal and specific features; 3) for the first time the problem of transposition is studied on the basis of Russian and Hungarian from a theoretical point of view (on the example of transition of other parts of speech into nouns); 4) we develop the methodology of a comprehensive approach to study substantivation in Hungarian and Russian which can be used when describing this phenomenon in other languages of different structures.


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