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Wyświetlanie 1-10 z 77
Tytuł:
Highly Automated Agile Testing Process: An Industrial Case Study
Autorzy:
Berłowski, J.
Chruściel, P.
Kasprzyk, M.
Konaniec, I.
Jureczko, M.
Powiązania:
https://bibliotekanauki.pl/articles/384067.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
software engineering
testing process
agile software development
case study
Opis:
This paper presents a description of an agile testing process in a medium size software project that is developed using Scrum. The research methods used is the case study were as follows: surveys, quantifiable project data sources and qualitative project members opinions were used for data collection. Challenges related to the testing process regarding a complex project environment and unscheduled releases were identified. Based on the obtained results, we concluded that the described approach addresses well the aforementioned issues. Therefore, recommendations were made with regard to the employed principles of agility, specifically: continuous integration, responding to change, test automation and test driven development. Furthermore, an efficient testing environment that combines a number of test frameworks (e.g. JUnit, Selenium, Jersey Test) with custom-developed simulators is presented.
Źródło:
e-Informatica Software Engineering Journal; 2016, 10, 1; 69-87
1897-7979
Pojawia się w:
e-Informatica Software Engineering Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Milestone-Oriented Usage of Key Performance Indicators – An Industrial Case Study
Autorzy:
Staron, M.
Niesel, K.
Bauman, N.
Powiązania:
https://bibliotekanauki.pl/articles/953064.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
software metrics
key performance indicator
project management
case study
Opis:
Background: Key Performance Indicators are a common way of quantitative monitoring of project progress in modern companies. Although they are widely used in practice, there is little evidence on how they are set, and how many of them are used in large product development projects. Goal: The goal of this paper is to explore how KPIs are used in practice in a large company. In particular, it is explored whether KPIs are used continuously or only during short, predefined periods of time. It is also explored whether software-related KPIs are reported differently from non-software-related KPIs. Method: A case study of 12 projects at the Volvo Car Group in Sweden was conducted. The data from the project progress reporting on tools was collected and triangulated with data from interviews conducted with experts from the company. Results: KPIs are reported mostly before the milestones and the manual assessment of their status is equally important as the automated data provision in the KPI reporting system. The trend of reporting software-related KPIs is very similar to the non-software-related KPIs. Conclusions: Despite the documented good practices of using KPIs for project monitoring, it is difficult to develop a clear status-picture solely using quantitative data from progress reporting tools. It was also shown that the trends in reporting the software-related KPIs are similar to the trends in reporting the non-software related KPIs.
Źródło:
e-Informatica Software Engineering Journal; 2018, 12, 1; 217-236
1897-7979
Pojawia się w:
e-Informatica Software Engineering Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance analysis of cation and anion exchangers in water treatment plant: an industrial case study
Autorzy:
Ramzan, N.
Feroze, N.
Kazmi, M.
Ashraf, M. A.
Hasan, S.
Powiązania:
https://bibliotekanauki.pl/articles/779735.pdf
Data publikacji:
2012
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
krzywa przebicia
wymiana jonowa
uzdatnianie wody
breakthrough curves
degree of column utilization
ion exchange
water treatment
Opis:
Performance of cation and anion exchangers was evaluated by carrying out breakthrough analyses of pH, conductivity, free mineral acid (FMA) and various dissolved solids for an industrial water treatment plant of 700 gpm capacity. The breakthrough curves showed no leakage of calcium, magnesium and chloride throughout the operating period of the train, however, they indicated the early leakage of sodium, potassium, sulphate and silica. The operating/breakthrough capacity, total capacity and degree of column utilization were determined. The column utilization was found to be 67.85%, 38.93% and 16.78% against the design values of 90%, 85% and 85% for cation, primary and secondary anion exchangers respectively. The operating time of the water treatment train was significantly increased by achieving adequate capacity utilization of secondary anion exchanger. The low capacity utilization of secondary anion resin due to early silica slippage, has been discussed in the paper.
Źródło:
Polish Journal of Chemical Technology; 2012, 14, 2; 35-41
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Developing and deploying electronics assembly line optimization tools: a Motorola case study
Autorzy:
Tirpak, T. M.
Powiązania:
https://bibliotekanauki.pl/articles/375906.pdf
Data publikacji:
2008
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
electronics assembly
line balancing
linear-integer programming
industrial case study
Opis:
The assignment of workloads to production equipment is one category of planning decision for an electronics assembly factory. In practice, line balancing requires not only selecting machines with sufficient placement accuracy and feeder capacity, but also addressing a host of other operational objectives and constraints. Motorola Labs led a multi-year effort to apply mathematical programming to balance a variety of production mix and volume scenarios. By representing the optimization problem as a specially structured, mixed linear-integer program, we were able to incorporate a high degree of reality in the model, simultaneously optimizing fixed setups, handling custom parts, maximizing machine uptime, and mitigating secondary bottlenecks. This paper presents the story of how we developed and deployed a software solution that significantly improved assembly cycle times, setup changeovers, and overall factory productivity, saving the company tens of millions of dollars.
Źródło:
Decision Making in Manufacturing and Services; 2008, 2, 1-2; 63-78
1896-8325
2300-7087
Pojawia się w:
Decision Making in Manufacturing and Services
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of air flow rate and froth depth on the flotation performance : an industrial case study in a 10 m3 cell
Autorzy:
Ostadrahimi, Mahdi
Farrokhpay, Saeed
Pirmoradi, Saeed
Noparast, Mohamad
Powiązania:
https://bibliotekanauki.pl/articles/2146876.pdf
Data publikacji:
2022
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
entrainment
bubble coalescence
air flow rate
froth depth
Opis:
The main purpose of the froth zone in flotation is to transport all the valuable particles from the pulp zone into the concentrate. However, in practice, a complete recovery of these particles is rarely achieved since some of them are detachment from the bubbles and return to the pulp zone. While this is an important topic in the mineral flotation industry, the previously published papers are mainly limited to small laboratory scales. Therefore, this study aimed to examine the effect of two main flotation variables (air flowrate and froth depth) on the flotation of iron ore in a 10 m3 industrial scale cell. It was found that, when the air flowrate increased from 45 to 146 m3/h, the velocity of the bubble coalescence also increased. In addition, when the froth depth increased from 5 to 30 cm, the product grade showed on average 2 unit increase (for instance, from 12% to 14%) due to the detachment of particles and liquid drainage. It was also found that the flotation concentrates recovery decreased with the increasing froth depth and air flowrate.
Źródło:
Physicochemical Problems of Mineral Processing; 2022, 58, 5; art. no. 154852
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Using collaborative management in industrial clusters – case study of Italian energy cluster
Autorzy:
Taurino, T.
Powiązania:
https://bibliotekanauki.pl/articles/407255.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
collaboration
collaborative networks
collaborative economy
network contract
energy cluster
Opis:
In the current industrial scenarios those involved in production and services distribution are called to deal with a plurality of stakeholders, considering different interests, readings and positions. This paper exploits the concept of collaboration in this fast changes and flexible scenario by describing the characteristics of collaboration among enterprises and their scope. In this context, the purpose of all managers to maximize utility, to save cost or to minimize of transaction costs is hard to be reached. Under this prospective, to collaborate with other firms is a logical way to work and to pursue the previous objectives. The purpose of this paper is to define all the aspects of collaboration, mainly among enterprises, and the reasons that can drive a manager to stipulate a collaboration agreement. Two different ways, through collaboration can rise, have been described: collaboration induced by external body (top-down collaboration) or born in a spontaneous way (bottom-up). The management of the collaboration and the identification of key performance indicators, able to control the development of the network system, is addressed by exploiting the Italian network contract and the case study of the energy cluster.
Źródło:
Management and Production Engineering Review; 2018, 9, 4; 138-149
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of a new capacitor bank installation on power quality parameters : an industrial case study
Wpływ przyłączenia nowej baterii kondensatorów na jakość energii elektrycznej : analiza wybranego przypadku przemysłowego
Autorzy:
Wysocki, W.
Powiązania:
https://bibliotekanauki.pl/articles/268691.pdf
Data publikacji:
2012
Wydawca:
Politechnika Gdańska. Wydział Elektrotechniki i Automatyki
Tematy:
jakość energii elektrycznej
pomiary
moc bierna
power quality
measurements
reactive power
Opis:
This paper deals with the results of three phase measurements of power quality parameters. The measurements were executed in order to match the new capacitor bank with the operating conditions of a supply station in a small factory near Cracow. The measurements were conducted under rated voltage (three-phase, 230/400V) in the LV switchgear. The main objective of the analysis was to assess power quality during long-term operating conditions both before and after the installation of a new capacitor bank. The analysis also aimed to check the influence of the capacitor bank on power quality and identifying the quantitative benefits of reactive power compensation.
Dokument traktuje o wynikch trójfazowych pomiarów parametrów jakości energii. Pomiary zostały wykonane w celu dostosowania nowej baterii kondensatorów do warunków pracy stacji zasilającej małą fabrykęi w pobliżu Krakowa. Pomiary były wykonywane przy napięciu znamionowym 230/400V w rozdzielnicy głównej nn. Głównym celem przedstawionej analizy wyników jest ocena jakości energii podczas długotrwałych warunków pracy przed i po instalacji nowej baterii kondensatorów, jak również, sprawdzenie jej wpływu na tę jakość energii elektrycznej i przekonanie się o ilościowych korzyściach płynących z kompensacji mocy biernej.
Źródło:
Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej; 2012, 31; 165-168
1425-5766
2353-1290
Pojawia się w:
Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Renewal of Industrial Cityscape. Case Study in Covilha, Portugal
Odnowiony krajobraz poprzemysłowy. Studium przypadku w Covilha, Portugalia
Autorzy:
Włodarczyk, A. M.
Powiązania:
https://bibliotekanauki.pl/articles/1188413.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Przyrodniczy we Wrocławiu
Tematy:
odnowa
krajobraz poprzemysłowy
Portugalia
renewal
industrial cityscape
Portugal
Opis:
Miejski krajobraz Portugalii w XXI wieku jest zdominowany w dużej części przez procesy rewitalizacji. Geneza przemysłowej epoki produkcji wełny w Covilha sięga XVII wieku. Obszar w latach 1980-tych zaczyna się przekształcać w przestrzeni naukowej. UBI (Uniwersytetu da Beira Interior). Celem artykułu jest przedstawienie różnych form krajobrazu urbanistycznego, uwzględniającego minione stulecia działalności człowieka. Obecnie w analizowanym mieście możemy obserwować proces odtwarzania (odnowy) panoram miejskich a także widoków o mniejszej skali. Jest to główny oryginalny watek niniejszego opracowania. Wyniki pracy wydobywają walory krajobrazowego kształtowania dawnej przestrzeni przemysłowej. Podstawą artykułu jest literatura związana z tematem oraz badania in situ prowadzone w Portugalii od roku 2001 do chwili obecnej.
Źródło:
Architektura Krajobrazu; 2012, 1; 73-78
1641-5159
Pojawia się w:
Architektura Krajobrazu
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Environmental Efficiency of Industrial Symbiosis – LCA Case Study for Gypsum Exchange
Autorzy:
Marcinkowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/2065022.pdf
Data publikacji:
2018
Wydawca:
STE GROUP
Tematy:
industrial symbiosis
life cycle assessment
gypsum
Opis:
A review of the available literature concerning environmental impact assessment for industrial symbiosis has been carried out. The authors have recommended the use of life cycle assessment method for this purpose. It was stated that so far few studies presenting LCA results of industrial symbiosis have been published. Among the factors which contribute to the success of symbiotic exchange, the close location of collaborating companies has been often mentioned. This paper presents LCA results concerning the environmental impact of symbiotic gypsum transmission. Concepts of relative distance and critical distance for the case of industrial symbiosis were proposed and defined. Significant difference between critical distance obtained for particular endpoints were observed (3.5- 564 km). Application of Life Cycle Sustainability Triangle enabled the estimation of critical distance taking into account various impact categories. A sensitivity analysis indicated the relationship between critical distance and the means of transport which reflected the effect of scale. The critical distance determined for heavy trucks was 3.2 - 3.9 times longer than in case of lighter vehicles.
Źródło:
Multidisciplinary Aspects of Production Engineering; 2018, 1, 1; 793--800
2545-2827
Pojawia się w:
Multidisciplinary Aspects of Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Visual Monitoring as a Tool in Industrial Security Engineering. Case Study
Autorzy:
Ignac-Nowicka, Jolanta
Powiązania:
https://bibliotekanauki.pl/articles/2064632.pdf
Data publikacji:
2021
Wydawca:
STE GROUP
Tematy:
video monitoring
supervision of the production process
video surveillance zones
Opis:
The article presents the use of video monitoring in a production company on the example of municipal thermal power plant. After analyzing the hazards and work inconvenience occurring in the analyzed enterprise, video surveillance zones have been designated with the division into the indoor and outdoor monitoring system. Video surveillance is provided for production, auxiliary and delivery processes. Moreover, video monitoring performs a control function over the occupation health in workstations at risk of explosion or fire. In addition, observation points have been set up in the visual monitoring system, among which the internal ones are served by the dispatcher responsible for the production process, while the external are operated by security guards of the facility.
Źródło:
Multidisciplinary Aspects of Production Engineering; 2021, 4, 1; 107--119
2545-2827
Pojawia się w:
Multidisciplinary Aspects of Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
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