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Wyświetlanie 1-15 z 73
Tytuł:
Cabin placement layout optimisation based on systematic layout planning and genetic algorithm
Autorzy:
Su, Shaojuan
Zheng, Yasai
Xu, Jinan
Wang, Tianlin
Powiązania:
https://bibliotekanauki.pl/articles/259974.pdf
Data publikacji:
2020
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
cabin placement layout
systematic layout planning
genetic algorithm
Opis:
Cabin placement layout is an important part of ship cabin layout design. A good cabin placement layout can improve the efficiency of the ship’s cabin arrangement. However, optimisation of the layout of cabin placement is not widely studied and more often relies on the experience of the staff. Thus, a novel methodology combining systematic layout planning and a genetic algorithm to optimise the cabin placement is presented in this paper. First key elements are converted by a systematic planning method that is often applied in factory layout, and a preliminary cabin placement layout model is established according to these key elements. Then the circulation strength and adjacency strength are taken as sub-objectives to establish a mathematical model, and an improved genetic algorithm is used to optimise the model. The result of the optimisation is compared with the initial schemes to verify the validity of the algorithm. Finally, the human factors are introduced according to the actual situation. The AHP method is used to select the layout scheme of the cabin that is most likely to be applied in the actual cabin layout.
Źródło:
Polish Maritime Research; 2020, 1; 162-172
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
User Interface – Keyboard and Keyshortcuts
Autorzy:
Sowa, G.
Filutowicz, Z.
Powiązania:
https://bibliotekanauki.pl/articles/108788.pdf
Data publikacji:
2010
Wydawca:
Społeczna Akademia Nauk w Łodzi
Tematy:
user interface
keyboard
keyshortcut
layout
Opis:
This article presents interface-related problems arising from a traditional keyboard. Some alternative suggestions for keyboard layout are discussed. Several ways of analyzing interfaces are introduced: the keystroke level model, the human processor model and cognitive walkthroughs.
Źródło:
Journal of Applied Computer Science Methods; 2010, 2 No. 2; 149-156
1689-9636
Pojawia się w:
Journal of Applied Computer Science Methods
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Concept of production facilities layout in company Alumin, s.r.o. Slovakia
Autorzy:
Straka, M.
Powiązania:
https://bibliotekanauki.pl/articles/343816.pdf
Data publikacji:
2011
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
logistics
optimization
layout
allocation
flow
Opis:
The aim of part of the solution layout processing company is an analysis of the existing system of distribution of production equipment company, identification of material flows and showing the possibility of modifying the layout of production facilities in compliance with capacity, safety and quality requirements for production.
Źródło:
Total Logistic Management; 2011, 4; 125-130
1689-5959
Pojawia się w:
Total Logistic Management
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Impact of Structural Changes on Sound Pressure Levels in a Neonatal Intensive Care Unit
Autorzy:
Carvalhais, Carlos
Rodrigues, Célia
Xavier, Ana
Silva, Manuela V.
Santos, Joana
Powiązania:
https://bibliotekanauki.pl/articles/1945648.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
noise
layout
design
healthcare
sound
Opis:
The design of neonatal intensive care units (NICU) influences both patient safety and clinical outcomes as well as the acoustic conditions. In NICU exposure to sound pressure levels above the recommended can affect both neonates and healthcare staff. This study aimed to evaluate the sound pressure levels and to assess noise perception of professionals in a NICU before and after structural modifications and layout redesign. The measurements were performed with a sound level meter. A questionnaire was given to staff before and after the intervention. The opinion of healthcare staff regarding noise in NICU was better after the intervention, when compared with the responses previously given. The results showed that noise levels were excessive in the NICU (before and after), exceeding the international recommendations, with the levels ranging between 46.6 dBA to 57.8 dBA before and 52.0 dBA to 54.0 dBA after intervention. Overall, there is a need for more research in order to verify the effectiveness of some actions and strategies to reduce the impact of noise in NICU.
Źródło:
Archives of Acoustics; 2021, 46, 3; 435-442
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative analysis of static and dynamic facility layouts design using the modeling of plantain flour as case study
Autorzy:
Adeyeri, Michael Kanisuru
Ayodeji, Sesan Peter
Powiązania:
https://bibliotekanauki.pl/articles/23966548.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
przeciążenie materiału
ograniczenia
konfiguracja układu
układ statyczny i dynamiczny
process plant facility layout
material congestion
constraints
layout configuration
static and dynamic layout
Opis:
Profit optimization at the expense of minimal resource utilization for product development has been the major focus of prospective investors. In an attempt to realize this goal, the present research consideration is tailored towards investigating the effect of introducing dynamic facility layout design. Therefore, this research study uses an existing designed plantain flour processing plant that consists of a washing machine, grating machine, dryer, milling machine and sieving machine. Modeling techniques incorporated with software development were employed on the existing static plant layout to optimize production time and cost of each of the processing units along with the layout. Also, dynamic constraints were introduced into the layouts while mathematical models were formulated to visualize how the output and production process would be. With these models, software for the optimization of static and dynamic layouts was developed. The comparative study was carried out based on the processing time, the number of machines needed for each layout type, the cost of operation and machine procurement cost for both static and dynamic layouts. The constraints introduced ensured that the system improved within the cost limit based on the current market situation and prevented unnecessary enlargement in the plant facility size while minimizing material congestion in the system. The distinction between static and dynamic layout configurations was further established by comparing the results from the layout configurations for a set of throughput masses ranging from 50 kg to 250 kg. Results showed that the cost of operation drops drastically by 69.6 % under dynamic layout configuration.
Źródło:
Production Engineering Archives; 2022, 28, 1; 12--20
2353-5156
2353-7779
Pojawia się w:
Production Engineering Archives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Facility layout redesign for efficiency improvement and cost reduction
Autorzy:
Kovacs, G.
Kot, S.
Powiązania:
https://bibliotekanauki.pl/articles/122482.pdf
Data publikacji:
2017
Wydawca:
Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:
facility layout
layout redesign
workflow
efficiency improvement
przepływ pracy
wydajność
projektowanie przestrzeni pracy
organizacja przestrzeni
Opis:
In a competitive market the manufacturing companies have to produce cost effective products which can be realized by minimized production cost and higher effectiveness. The effective facility planning can significantly reduce the operational costs of companies. An adequate facility layout can result in the improvement of the performance of the production line. The Facility Layout Problem (FLP) is relating to location of objects (departments, workstations, machines, etc.) on a given site and the material flow between these objects. The goal of this study is to show the reasons, objectives and steps of a layout redesign process. The minimization of the workflow realized on the shop floor is an often applied an objective function during the layout redesign. Material flow efficiency is a commonly used term for the determination of the amount of workflow, which is the multiplication of material flow data and distance data. In this study, this mathematical method for workflow calculation is introduced. The described case study shows how the efficiency and reduced manufacturing cost of a real manufacturing system can be improved by re-layout design, while smaller floor space is needed for the production.
Źródło:
Journal of Applied Mathematics and Computational Mechanics; 2017, 16, 1; 63-74
2299-9965
Pojawia się w:
Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of the functional concept of the minimum apartment - a study on a selected example. The role of functional details.
Autorzy:
Tokajuk, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/27314383.pdf
Data publikacji:
2023
Wydawca:
Politechnika Lubelska. Wydawnictwo Politechniki Lubelskiej
Tematy:
apartment
flat
functional concept
layout
detail
Opis:
The article shows the study about functional concepts of a small apartment. For the research the author has chosen 27,3 m2 apartment from the estate „Za Żelazną Bramą” in Warsaw. The study works on the optimization of minimum apartment model for 1-2 occupants that could meet contemporary standards. The study has proved that the original layout of the apartment can be improved to bring it closer to contemporary requirements. It turned out that improvements and changes mainly concerned dimensions and arrangement of the kitchen and bathroom. Theliving space could also be modified – good results have been obtained by implementing innovative details. The last simulation performed in the research (purely hypothetical) showed that the best optimization result could be obtained by slightly enlarging the basic plan of the apartment.
Źródło:
Budownictwo i Architektura; 2023, 22, 1; 15--24
1899-0665
Pojawia się w:
Budownictwo i Architektura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Methodics of production layout design and its importance to logistics management
Autorzy:
Hart, M.
Lukoszová, X.
Taraba, P.
Powiązania:
https://bibliotekanauki.pl/articles/409085.pdf
Data publikacji:
2013
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
logistics
layout
production
Logistics Management
Methodics
Opis:
Contemporary global business market environment is characterized by high level of various requirements which are imposed on industrial companies in every branch. Those needs are related to e.g. manufacturing type, product quality and quantity, customer service, logistics indicators, etc. In final consequence the companies make an effort to develop logistics management systems to effectively manage their bulky material flows and simultaneously to minimize their costs. The enterprise logistics management systems are consisting of several subsystems, one of them is production logistics subsystem to effectively plan, to manage and to control all flows of manufacturing processes. For development of such subsystem it's necessary to have drawing documentation of production layouts. Production layouts are therefore crucial to effectively manage all manufacturing operations within the frame of given production logistics subsystem. Under current market conditions the companies should have drawing documentation of their production layouts in desired detail - industrial zone layout, production hall layout, production line layout, production workshop or cell layout and production workplace layout.
Źródło:
Research in Logistics & Production; 2013, 3, 3; 225-238
2083-4942
2083-4950
Pojawia się w:
Research in Logistics & Production
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sensivity and design of fiber layout in composites
Autorzy:
Dems, K.
Powiązania:
https://bibliotekanauki.pl/articles/279497.pdf
Data publikacji:
2000
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
sensitivity analysis
composites
fiber layout
optimization
Opis:
For a linear structure reiforced with elastic fibers, the first variation of an arbitrary behavioral functional corresponding to variation of shape or orientation of fibers is derived by using the direct approach to sensivity analysis. The relevant optimality conditions for optimal design and identification problems are then derived. Both the static and dynamic loading cases are considered. Some simple examples illustrate the applicability of the presented approach.
Wrażliwość i projektowanie ułożenia włókien w kompozycie. W pracy rozpatrzono pierwszą wariację dowolnego funkcjonału związaną z wariacją kształtu lub orientacji wzmacniających włókien w płaskiej liniowo-sprężystej tarczy. Wrażliwości rozpatrywanego funkcjonału wyznaczono wykorzystując metodę bezpośrednią analizy wrażliwości. Następnie sformułowano typowy problem optymalnego projektowania oraz problem identyfikacyjny i wyznaczono odpowiednie warunki optymalności. Rozpatrzono zarówno przypadek obciążeń statycznych, jak i dynamicznych.
Źródło:
Journal of Theoretical and Applied Mechanics; 2000, 38, 4; 807-818
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assembly improvement with the use of the Schmigalla method
Autorzy:
Kutschenreiter-Praszkiewicz, Izabela
Powiązania:
https://bibliotekanauki.pl/articles/1428969.pdf
Data publikacji:
2021
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
assembly
Schmigalla method
changeover
layout improvement
Opis:
One of the important issues in production is the improvement of the assembly process, which involves the assembly of the product, as well as changeover and maintenance. Improving assembly, resulting from the appropriate layout of workstations, is crucial for both employees and robots performing routine assembly operations. This article discusses improving assembly using the Schmigalla method (also known as the Bloch-Schmigalla method or the triangular method), which is one of the heuristic layout planning methods. The article analyzes the selected assembly task and characterizes the main activities and equipment, on the basis of which the proper arrangement of equipment at the assembly station was determined. Based on the numerical data, the advantages of using the Schmigalla method to improve the location of the assembly station equipment are presented.
Źródło:
Journal of Machine Engineering; 2021, 21, 2; 116-130
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Technical and organizational improvements of packaging production process
Autorzy:
Rudawska, A.
Čuboňova, N.
Pomarańska, K.
Stančeková, D
Gola, A.
Powiązania:
https://bibliotekanauki.pl/articles/103171.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
packaging
production process
improvements
efficiency
layout
automation
Opis:
Due to customer driven economies, today’s world markets are characterized by high fluctuations in market demand and frequent arrival of new technologies and new products. To stay competitive in such markets manufacturing companies require continuous improvements both in technical and organizational areas of their activity. The paper presents results of the diagnosis provided in the manufacturing area of the company producing cardboard packages and recommendations to make the production process more efficient. Especially, among the proposed technical and organizational recommendations the most important ones are: automation of certain elements of the production process and changes in production plant layout.
Źródło:
Advances in Science and Technology. Research Journal; 2016, 10, 30; 182-192
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Industrial engineering education – challenging complexity by simple means
Autorzy:
Gladysz, Bartłomiej
Powiązania:
https://bibliotekanauki.pl/articles/407227.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
engineering education
industrial engineering
layout
line
cell
Opis:
Industrial engineers gather knowledge during their bachelor studies through lectures and practical classes. The goal of practical class might be an extension of knowledge and/or a consolidation and application of already gathered knowledge. It is observed that there exists a gap between theory learnt during lectures and practical classes. If practical classes require holistic approach and solving complex tasks (problems), students strive with understanding relations and connections between parts of knowledge. The aim of this article is to show an example of a simple practical assignment that can serve as a bridge between lectures and practical classes through discussion of interactions and relations between parts of theoretical knowledge. It is an example of in-class simulating of a line and cellular layout considering discussion of elements impacting and impacted by the type of layout (e.g. learning curve, changeovers, etc.). In-class verification of the presented approach confirmed its usability for teaching industrial engineers and bridging the gap between theory delivered through lectures and more advanced practical classes.
Źródło:
Management and Production Engineering Review; 2019, 10, 3; 90--96
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of a flexible process layout for a Nigerian beverage industry
Autorzy:
Kareem, B.
Oke, P. K.
Lawal, A. S.
Powiązania:
https://bibliotekanauki.pl/articles/409099.pdf
Data publikacji:
2013
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
process layout
flexibility
new product
global standards
Opis:
Product design is changing everyday as a result of changing in taste of the customers. Production layout must be flexible to cater for these changes. Production layout is flexible if it can accommodate change in flow of workers, material and machines in compliance with the new product demand. In this study, flexible process layout was developed for a Nigerian beverage industry to take care of future change in product design. In the industry, flexibility was considered in redesigning of old production layout in the areas of industrial facility, and operational planning. It was discovered that old layout was deficient in the area of flexibility by 90% of the set standards of the criteria for plant layout. The findings have indicated that the flexibility in plant layout is cardinal in combarting the challenge of changing industrial environment.
Źródło:
Research in Logistics & Production; 2013, 3, 1; 37-47
2083-4942
2083-4950
Pojawia się w:
Research in Logistics & Production
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Some inferential questions in regard to analysing two-way Layouts and associated linear model theory and practice
Autorzy:
Clarke, Brenton
Monaco, Antony
Powiązania:
https://bibliotekanauki.pl/articles/729772.pdf
Data publikacji:
2004
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
outlier
two-way layout
adaptive estimation
heteroscedaticity
Opis:
In analysing a well known data set from the literature which can be thought of as a two-way layout it transpires that a robust adaptive regression approach for identifying outliers fails to be sensitive enough to detect the possible interchange of two observations. On the other hand if one takes the classical approach of diagnostic checking one may also stop too early and be satisfied with a model that falls short of a more detailed analysis that takes account of heteroscedasticity in the data. An exact F-test for heteroscedasticity in the two way layout is compared with various more general tests proposed by Shukla. In conclusion it is noted that when modelling the particular form of heteroscedasticity countenanced here, the estimated column effects are unchanged from those estimated from the model assuming homogeneous error variance structure. It is only the estimated variances of these column effects that changes.
Źródło:
Discussiones Mathematicae Probability and Statistics; 2004, 24, 2; 183-195
1509-9423
Pojawia się w:
Discussiones Mathematicae Probability and Statistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mössbauer spectrometer MsAa-3
Autorzy:
Błachowski, A.
Ruebenbauer, K.
Powiązania:
https://bibliotekanauki.pl/articles/148201.pdf
Data publikacji:
2007
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
Mössbauer spectrometer
layout
performance tests
laser calibration
Opis:
The paper is aimed at the description of the newly developed Mössbauer spectrometer MsAa-3. The spectrometer MsAa-3 consists of a high quality gamma-ray spectrometer including either a proportional gas detector head or a scintillation detector head, a transducer driving system including the transducer, data storage system, and data communication system based on the TCP/IP protocol. Additionally, the Michelson-Morley interferometer is provided for precise calibration of the transducer velocity. The spectrometer is equipped with an integrated simple temperature controller. All the essential functions are remotely controlled over the TCP/IP link allowing for the spectrometer set-up as the stand-alone unit in the computer network, e.g. on the Internet. External gamma-ray detectors or external complete nuclear blocks could be used as well. The spectrometer is equipped with software allowing for setting all the functions, to perform on-line control, and retrieve data. The Mössbauer data processing software MOSGRAF is enclosed as well. The latter software allows for the calculation of the variety of velocity reference functions.
Źródło:
Nukleonika; 2007, 52, supl. 1; 7-12
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 73

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