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Search results for: CASE-STUDY
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Problems of Railway Noise-A Case Study
PublicationUnder Directive 2002/49/EC relating to the assessment and management of environmental noise, all European countries are obliged to model their environmental noise levels in heavily populated areas. Some countries have their own national method, to predict noise but most have not created one yet. The recommendation for countries that do not have their own model is to use an interim method. The Dutch SRM II scheme is suggested for...
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Problems of Railway Noise—A Case Study
PublicationUnder Directive 2002/49/EC relating to the assessment and management of environmental noise, all European countries are obliged to model their environmental noise levels in heavily populated areas. Some countries have their own national method, to predict noise but most have not created one yet. The recommendation for countries that do not have their own model is to use an interim method....
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Usprawnienie procesu produkcyjnego - case study
PublicationCelem artykułu jest przedstawienie koncepcji usprawnienia procesu obróbki wstępnej oraz produkcji dzemu poprzez zakup i wprowadzenie odszypułczarki. Nowa maszyna pozwoli na likwidację wąskiego gardła w produckji, dzięki czemu wzrośnie dzienna wielkość produkcji.
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Architectural Symbols of a City – Case Study
PublicationThe identity of a city is understood as a collection of individual features, which give the city its individual character and distinguish it from other places; it undoubtedly constitutes a cultural value, which should be cherished. In the case of Sopot – a spa located on the Bay of Gdansk, the mosaic of its geographical location, landscape values, urban layout and historic architecture has created a unique image of a seaside resort....
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Case study methodology. Few conceptual considerations.
PublicationThis paper contributes to the debate on case study as methodological approach. It shows several issues concerning its major advatangeus and disadvantageus
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Contextualizing a Knowledge Base by Approximation – A Case Study
PublicationModular knowledge bases give their users opportunity to store and access knowledge at different levels of generality. In this paper we present how to organize a modular knowledge bases organized into contexts in which a user can express their knowledge in much simplified way, yet without losing its precision. The work is centered around the notion of approximation - i.e. reducing the arity of predicates used. The presentation is...
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A case study of constructing decisional DNA on finanse
PublicationPrzedstawiono koncepcję i rozwiązanie analityczne opisu rynku finansowego przy pomocy reprezentacji wiedzy zwanej ''decyzyjne DNA''.
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Trust management in WSN - case study evaluation
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Modelling and diagnostics of a traction transformer - a case study
PublicationW niniejszym artykule przedstawiono wyniki badań w dziedzinie diagnostyki kolei elektrycznych. Zostały one przeprowadzone przez międzynarodowe przemysłowo-akademickie konsorcjum w ramach projektu europejskiego (6-go programu ramowego). Skupiono się na modelowaniu transformatora trakcyjnego z myślą o rozwinięciu nieinwazyjnej metody diagnostycznej w czasie rzeczywistym. Model przeznaczony do badań finalnych został rozwinięty w oparciu...
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Experimental study and numerical optimization of tensegrity domes – A case study
PublicationThe paper deals with the design, experimental analysis and numerical optimization of tensegrity dome models. Two structures are analyzed – a Geiger system dome (preliminary dome), with PVC-U bars and PA6/PP/PET tendons and a Fuller system dome (target dome), with wooden bars and steel cables as tendons. All used materials are experimentally tested in terms of Young's modulus and yield stress values, the compressed bars are also...
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Synchro-photogrammetry in the measurement of objects in motion - the case study
PublicationSynchronous photographs and digital photogrammetry methods in a measurement of objects in motion - the experiment. In the following paper, a case study example of a photogrammetric method based on synchronous digital photographs has been presented. This measurement method is an effective solution for tracking of moving objects, dynamic studies and dimensioning of geometry movements. Nowadays, the use of synchronous photography...
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Factors influencing decisions to retire – case study of Poland
PublicationThe main objective of the article is to present the factors influencing the decisions of the Poles from the older age groups to withdraw from the labour market by retirement, or on the contrary – to remain economically active, also upon reaching the formal retirement age.
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Potential Benefits Of Electricaly Driven Ferry, Case Study
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An Analysis of Contextual Aspects of Conceptualization: A Case Study and Prospects
PublicationIn this chapter we present a new approach to development of modularized knowledge bases. We argue that modularization should start from the very beginning of modeling, i.e. from the conceptualization stage. To make this feasible, we propose to exploit a context-oriented, semantic approach to modularization. This approach is based on the Structural Interpretation Model (SIM) presented earlier elsewhere. In the first part of thischapter...
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Risk-driven Software Process Improvement - a Case Study.
PublicationArtykuł przedstawia studium przypadku praktycznego zastosowania metody sterowanej ryzykiem poprawy procesów programowych w rzeczywistym projekcie informatycznym. Metoda zakłada jawne modelowanie procesu i jego braków (czynników ryzyka), a także wspiera ewolucję procesów. Ponadto zawiera dedykowane techniki identyfikacji ryzyka procesów oraz wywodzenia z niego sugestii poprawy procesów. Techniki te są wbudowane w cykliczną procedurę...
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Modeling and Designing Acoustical Conditions of the Interior – Case Study
PublicationThe primary aim of this research study was to model acoustic conditions of the Courtyard of the Gdańsk University of Technology Main Building, and then to design a sound reinforcement system for this interior. First, results of measurements of the parameters of the acoustic field are presented. Then, the comparison between measured and predicted values using the ODEON program is shown. Collected data indicate a long reverberation...
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Implementing a CSR Strategy in a Small Enterprise - a Case Study
PublicationAs a result of employees’ meetings conducted according to Kaizen workshops formula and seeking new development directions for the company (including CSR actions) various product and service innovations have been implemented. Also a market niche has been discovered, and as a consequence the company gained another profitable aspect of the business activity. The atmosphere and contribution in performing tasks have improved among...
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Ocena komfortu pieszego na kładkach. Case study
PublicationTrend w projektowaniu nowych kładek dla pieszych wymaga, aby były one coraz bardziej „wyszukane” i lekkie. Bardzo często jednak z tego powodu obiekty te mają pierwszą częstotliwość giętną pomostu zbliżoną do wymuszenia chodem pieszego. W niniejszej pracy przedstawiono trzy konstrukcje kładek dla pieszych. Każda z nich znalazła się w innej grupie narażenia na wystąpienie drgań rezonansowych, z uwagi na pierwszą częstotliwość drgań...
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Federated Learning in Healthcare Industry: Mammography Case Study
PublicationThe paper focuses on the role of federated learning in a healthcare environment. The experimental setup involved different healthcare providers, each with their datasets. A comparison was made between training a deep learning model using traditional methods, where all the data is stored in one place, and using federated learning, where the data is distributed among the workers. The experiment aimed to identify possible challenges...
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Temperature modeling in activated sludge systems: a case study
PublicationPrzedstawiono model dynamiki temperatury jako część ogólnego modelu komory osadu czynnego. Transport ciepła opisano za pomocą jednowymiarowego równania adwekcyjno-dyspersyjnego z członem źródłowym opisującym teoretyczny bilans ciepła dla komory. Model został zweryfikowany w oczyszczalni ścieków Rock Creek w stanie Oregon (USA) w oparciu o dane eksploatacyjne oraz pomiary meteorologiczne z pobliskiej stacji meteorologicznej. Wyniki...
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STUDENTS' PERCEPTION OF E-GRADING: INFORMATICS COURSE CASE STUDY
PublicationUsing computers for grading can simplify work for teachers. However it is a sensitive part of their work and must be performed carefully. More information is required on students' reception and opinions about e-grading. This paper is a case study of e-grading used in Informatics course and discusses results obtained from surveying the students after being graded by a teacher and a computer.
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The retrofitting of ships by applying retractable bow hydrofoils: a case study
PublicationIncreasing environmental requirements and a relatively long ship life of 30 years mean more attention is needed to retrofit existing ships. One possibility is using hydrofoils to reduce the ship’s resistance and improve comfort and safety in rough sea conditions. This study investigates the influence of retractable bow hydrofoils on the seakeeping performance and operational conditions of a selected case study vessel (V-shaped...
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Marine traffic risk modelling – an innovative approach and a case study
PublicationThis paper presents a model to analyse the risk of two common marine accidents: collision and grounding. Attention is focused on oil tankers since they pose the highest environmental risks. A case study in selected areas of the Gulf of Finland in ice-free conditions is presented. The model utilizes a formula for risk calculation that considers both the probability of an unwanted event and its consequences. The model can be decomposed...
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Accident susceptibility index for a passenger ship-a framework and case study
PublicationThe continuous monitoring and assessment of operational vulnerability and accident susceptibility of passenger ships is crucial from the perspective of ship and passenger safety. Despite the existing solutions for vulnerability monitoring, stemming mainly from watertight door operations, a comprehensive framework for accident susceptibility assessment and monitoring is missing in the literature. Therefore, this paper offers a...
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Adaptive filtering approach to dynamic weighing: a checkweigher case study
PublicationDynamic weighing, i.e., weighing of objects in motion, with out stopping them on the weighing platform, allows one to increase the rate of operation of automatic weighing systems used in industrial production processes without compromising their accuracy. The paper extends and compares two approaches to dynamic weighing, based on system identification and variable-bandwidth filtering, respectively. Experiments, carried on a conveyor...
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Case study of masts damage of the sail training vessel POGORIA
PublicationArtykuł przedstawia opis i analizę przyczyn zdarzenia polegającego na utracie masztów w lipcu 2009 przez barkentynę sts ''POGORIA'' w trakcie regat Tall Ships Race 2009. Przedstawiono podstawowe okoliczności stanowiące tło zdarzenia, dokonano anlizy przyczyn w skali globalnej, zaprezentowano analizę szczegółową utraty nośności konstrukcji stalowej, a na tym tle wypunktowano szczegółowe przyczyny leżące u źródeł wypadku. We wnioskach...
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Environmental impact assessment of municipal biogas plants – case study
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Rebuilding Bailey Bridge to Bridge With Bascule Span – A Case Study
PublicationThe structural analysis of a road foldable prefabricated steel Bailey- type bridge located over the Tuga River in Żelichowo, Poland is performed in this paper. Interesting and untypical bridge redevelopment performed made it possible to lift the middle foldable bridge span by approximately 4.0 m concerning the existing state. The paper begins with a survey of literature carried out on the investigations of foldable Bailey-type...
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Building ethics online course - australian and polish case study
PublicationPrzedstawiono koncepcje i metody tworzenia szkolenia internetowego przez zespół międzynarodowy. Zaprezentowano zawartość szkolenia i metody oceny uczestników. Dla zainteresowanych udostępniono szkolenie na stronach internetowych Centrum Edukacji Niestacjonarnej Politechniki Gdańskiej.
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Multiple Criteria Optimization for Supply Chains – Analysis of Case Study
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Case Study of Stray Current Corrosion of Tall Ship Mast
PublicationNowadays, in the present technical civilization there are numerous complex technical systems that may generate various hazards. Large transport units like ships can be considered as the most dangerous systems. Therefore, it is important to eliminate all possible hazards, especially for ship crewmembers. Destruction of ship structural components caused by vast corrosion is one of these hazards. Usually, its activity leads to a decrease...
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Street Art and Urban Regeneration. Case Study Gdansk and Rome.
PublicationStreet art plays an important role in urban planning as a transforming engine to regenerate the public spaces and in the processes of participation. The article analyzes two main topics. The first one focuses on the urban serving as a support for spatial and cultural strategies in urban redevelopment projects. The second one is related to the potential of micro urban interventions as a strategy for a wider involvement of inhabitants...
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Metrological aspects of the Tombolo effect investigation – Polish case study
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The Towers of Hanoi as a Cyber-Physical System Education Case Study
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NEIGHBOURHOOD SPORT AS A TOOL OF URBAN REGENERATION - A WARSAW CASE STUDY
PublicationThere are many connections between sport and urban regeneration. They can be observed while organizing top-down projects, such as sporting mega-events. But sport and urban renewal can also be linked within bottom-up sport initiatives, ones that relate mostly to physical recreation or sport for all. The main goals of physical activity is caring for health, improving fitness, practicing hobbies, and achieving social integration....
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Hold-Up Problems in International Gas Trade: A Case Study
PublicationThe infrastructure required for international natural gas trade is considerable, which often leads to hold-up problems and supply disruptions. This study discusses disruptions of gas supply from Algeria, Indonesia, Russia, and Turkmenistan since the early 1980s. The novelty of this study is its focus on the issues related to transit countries, which are rarely considered in the literature. The results of the study classify supply...
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Multi-Channel Virtual Instrument for Measuring Temperature—A Case Study
PublicationThe article presents the hardware and software configuration of the developed multi-channel temperature measurement system as well as calibration procedures and measurement results verifying the properties of measurement channels. The system has been developed and dedicated primarily for measuring the temperature distribution in a laboratory model simulating underground power lines. With the adopted configuration of the analog...
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Evaluating the Cost of Personnel Activities in Cybersecurity Management: A Case Study
PublicationThe methods of cybersecurity costs' evaluation are inclined towards the cost of incidents or technological acquirements. At the same time, there are other, less visible costs related to cybersecurity that require proper recognition. These costs are associated with the actions and the time spent by employees on activities connected to cybersecurity management. The costs form a considerable component of cybersecurity expenditures,...
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Determinants of judges’ career choices and productivity: a Polish case study
PublicationThe goal of this paper is to identify factors which affect judges’ productivity and career choice motives with the view of increasing judicial efficiency. Specifically, the investigation focuses on such aspects as judges’ remuneration, promotion, threat of judgment revocation, service/mission, periodic assessment, the threat of a complaint about protracted proceedings or of disciplinary proceedings, the threat of destabilization...
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A model-based approach to analysis of security protocols - a case study
PublicationArtykuł przedstawia zintegrowane środowisko analizy protokołów bezpieczeństwa. Środowisko zostało oparte o znaną metodę formalną CSP oraz wspierające ją narzędzia: Casper oraz FDR. Integralną częścią opisywanego środowiska jest pół-formalne zorientowane obiektowo podejście do modelowania protokołów kryptograficznych, ich kontekstu aplikacyjnego oraz wymagań bezpieczeństwa. Modelowanie obiektowe zostało oparte o język UML oraz...
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The role of stakeholders on rejection of bankruptcy applications in the case of “poverty” of the estate: A Polish case study
PublicationThe aim of this article is to supplement the Law and Economics area of science with regard to the scope of the ex ante effectiveness of bankruptcy law using the example of Poland. Bankruptcy law is effective in the ex ante stage when it eliminates from the market insolvent entrepreneurs who cannot even afford to cover the costs of bankruptcy proceedings. In these cases, the bankruptcy court should dismiss the petition for bankruptcy...
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Designing effective educational games - a case study of a project management game
PublicationThis paper addresses the issues of designing effective educational games. We aim at investigating how the cognitive, behavioral and emotional aspects of the games influence their educational effectiveness. The results were obtained with an observational user experience study extended with affect analysis carried out for a project management game GraPM. We analyzed the...
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Knowledge Exchange Between KIBS Firms and Their Clients: Case Study Analysis
PublicationPurpose: This paper aims to analyse knowledge exchange between KIBS firms and their clients, and their potential determinants (e.g. client’s education, type of the service offered, channel of the knowledge exchange, and willingness of the customer to accept the knowledge). The paper is based on a literature analysis and a case study research, examining 5 KIBS firms located in the Pomeranian region in Poland. Methodology: On the...
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Building Information Modeling in Small and Middle Sized Buildings – Case Study
PublicationBuilding Information Modeling (BIM) is a technology designed to improve and integrate all engineering aspects in the construction design process. Tools that incorporate the idea of BIM are becoming more advanced and also more popular. Available software solutions have already reached an assumable high level of development, but still are not as widespread and used on nearly as many construction projects as could be expected. Therefore...
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The concept of aida applied to online interactive advertisement: an youtube case study
PublicationThis paper presents an approach of application of the AIDA framework to interactive advertisements presented on social media channels. The first section introduces the definitions of social media and its categorization. It is given an overview of the online video service YouTube.com. The second section describes social media marketing. The third section presents a theoretical introduction of traditional and interactive advertisement....
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Deep Learning: A Case Study for Image Recognition Using Transfer Learning
PublicationDeep learning (DL) is a rising star of machine learning (ML) and artificial intelligence (AI) domains. Until 2006, many researchers had attempted to build deep neural networks (DNN), but most of them failed. In 2006, it was proven that deep neural networks are one of the most crucial inventions for the 21st century. Nowadays, DNN are being used as a key technology for many different domains: self-driven vehicles, smart cities,...
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Estimating the Cost of Cybersecurity Activities with CAsPeA: A Case Study and Comparative Analysis
PublicationContemporary approaches to the estimation of cybersecurity costs in organisations tend to focus on the cost of incidents or technological investments. However, there are other, less transparent costs related to cybersecurity management that need to be properly recognised in order to get a complete picture. These costs are associated with everyday activities and the time spent by employees on cybersecurity-related actions. Such...
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DETERMINATION OF SEAKEEPING PERFORMANCE FOR A CASE STUDY VESSEL BY THE STRIP THEORY METHOD
PublicationThe increase of seakeeping performance is of particular importance for car and passenger ferries, service ships in the gas and oil extraction industry and offshore wind power farm industry, as well as for special purpose ships (including military applications). In the water areas of the Baltic Sea, North Sea, and Mediterranean Sea, which are characterised by a short and steep wave, the hull shape has a substantial impact on the...
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A case study of odour nuisance evaluation in the context of integrated urban planning
PublicationOdour nuisance poses a serious problem in many urban areas, yet its evaluation and mitigation is often omitted in the urban planning process. By identifying its range and spatio-temporal variations, it could be taken into consideration by planners in urban development strategies and land use decisions. The aim of the study was to present the application of odour evaluation techniques in the improvement of the quality of life in...
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Evolution of Edges and Porosity of Urban Blue Spaces: A Case Study of Gdańsk
PublicationCurrent waterfront studies focus mainly on a land-based perspective, failing to include the water side. Water is, however, not just a resource for port and industrial purposes and an edge to the waterfront; it is also a feature of the waterfront and the complex relation between water and city. Thus, the article suggests that water-land edges need to be re-contextualised, taking into consideration also their shape, functionality,...