Modelling of Railway Signalling System Requirements by Controlled Natural Languages: A Case Study

2019 ◽  
pp. 502-518
Author(s):  
Gabriele Lenzini ◽  
Marinella Petrocchi
Keyword(s):  
Natural Languages ◽  
Signalling System ◽  
System Requirements ◽  
Railway Signalling

scholarly journals Reliability and Inspection Modelling of Railway Signalling Systems

Modelling ◽  
2021 ◽  
Vol 2 (3) ◽  
pp. 344-354
Author(s):  
Nikesh Kumar ◽  
Kong Fah Tee
Keyword(s):  
High Reliability ◽  
Signalling System ◽  
System A ◽  
Long Run ◽  
Modelling Techniques ◽  
Inspection And Maintenance ◽  
Railway Signalling ◽  
Railway Operation ◽  
Signalling Systems

The railway is one of the most prominent models of transportation across the globe and it carries a large number of people, thus requiring high reliability, maintainability and safety. The reliability of railways mostly depends on an effective signalling system, making it one of the critical parts of railway operation. A signalling system is part of a large array of systems with interconnected components and subcomponents. Therefore, there is a need to make the signalling system more reliable and optimised with enhanced fault detection. Proper inspection and maintenance are required to make the signalling system reliable and safe. In this study, different inspection modelling techniques are applied to find the reliability of the signalling system. The signalling system has been divided into subsystems (signal unit, track unit, point-and-point machine) considering their importance and their effects on the failure rate of the entire signalling system. Inspection modelling of each subsystem has been conducted to provide the basis for the entire signalling system. A case study has been investigated to validate the model developed in one of the busiest tracks in eastern India. The obtained data thus are used to analyse the inspection pattern of signalling subsystems. Special attention to maintenance for inspection activities and logistics support has been taken into consideration, which is required to improve the reliability and maintainability of signalling subsystems and systems to make the railway signalling system sustainable in the long run.

scholarly journals Do Sibilants Fly? Evidence from a Sound Symbolic Pattern in Pokémon Names

2020 ◽  
Vol 6 (1) ◽  
pp. 386-400 ◽  
Author(s):  
Shigeto Kawahara ◽  
Mahayana C. Godoy ◽  
Gakuji Kumagai
Keyword(s):  
Sound Symbolism ◽  
Research Paradigm ◽  
Current Experiment ◽  
Normal Type ◽  
Natural Languages ◽  
Japanese Speakers ◽  
Symbolic Value

AbstractAncient writers, including Socrates and the Upanishads, argued that sibilants are associated with the notions of wind, air and sky. From modern perspectives, these statements can be understood as an assertion about sound symbolism, i.e., systematic connections between sounds and meanings. Inspired by these writers, this article reports on an experiment that tests a sound symbolic value of sibilants. The experiment is a case study situated within the Pokémonastics research paradigm, in which the researchers explore the sound symbolic patterns in natural languages using Pokémon names. The current experiment shows that when presented with pairs of a flying-type Pokémon character and a normal-type Pokémon character, Japanese speakers are more likely to associate the flying-type Pokémons with names that contain sibilants than those names that do not contain sibilants. As was pointed out by Socrates, the sound symbolic connection identified in the experiment is likely to be grounded in the articulatory properties of sibilants – the large amount of oral airflow that accompanies the production of sibilants. Various implications of the current experiment for the sound symbolism research are discussed throughout the article.

scholarly journals Penyusunan Laporan Keuangan dan Perancangan Aplikasi Keuangan Untuk Usaha Kecil Menengah Studi Kasus pada D’Haus Cake

2020 ◽  
Vol 15 (2) ◽  
pp. 90-96
Author(s):  
Fitra Oliyan ◽  
Elfitri Santi ◽  
Eka Rosalina
Keyword(s):  
Implementation Process ◽  
Financial Statements ◽  
Transaction Processing ◽  
Development Stage ◽  
User Needs ◽  
Application Development ◽  
Financial Position ◽  
Microsoft Access ◽  
System Requirements

This study aims to design accounting applications for the preparation of financial statements at D'Haus Cake's business. The approach used in this research is a case study. The design process begins with studying the transactions and reports that D'Haus Cake’s business needs in the form of purchase and sale transaction forms, and general journals. The required reports are in the form of all transaction journal records, ledgers, trial balances, profit and loss reports, and statements of financial position. After studying the system requirements, then proceed to the application development stage using Microsoft Access 2013 software. The next stage is to test the application to obtain adequate confidence in transaction processing by comparing the results of processing with manual calculations carried out. The implementation process is carried out by converting the initial data on the conversion date and making input transactions up to the company's operating date. After implementing and converting, the final stage is to carry out training for users and carry out a process of improvement and adjustment to the application based on the feedback received from users. The process of designing and implementing the application has been considered successful after the user states that the application has met all user needs and operates well.

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