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    Wyświetlanie 1-10 z 10
    Tytuł:
    Application of the experimental design technique in fuel dose adjustment of common rail injector
    Autorzy:
    Stoeck, Tomasz
    Powiązania:
    https://bibliotekanauki.pl/articles/133869.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    common rail injectors
    design of experiment technique
    fuel dose adjustment
    idling
    wtryskiwacze Common Rail
    projektowanie eksperymentu
    dostosowanie dawki paliwa
    bieg jałowy
    Opis:
    The article presents a simplified methodology for testing Denso common rail electromagnetic injectors, which was based on an adjustment of idling fuel dosage. In order to determine the parameters significantly affecting this process, the design of experiments technique (DoE) was applied. Due to the non-linear course of the rates characteristics obtained on the diagnostic test bench, the trivalent fractional plan was used. Analysis of computational data has shown that the generated parabolic model is well suited to the actual measurement results, as the injector dosage is slightly out of projected values. The calculations were carried out in the STATISTICA computer program, which takes into account the specificity of the experimental theory methods and is one of the most universal tools available on the market. Innovation is the effective implementation of the proposed methodology in the repair process, which has not been taken into account in this regard yet.
    Źródło:
    Combustion Engines; 2019, 58, 4; 210-215
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparison of Traditional and Integrated Bridge Design with SAGAT
    Autorzy:
    Motz, F.
    Dalinger, E.
    Widdel, H.
    Hockel, S.
    Mackinnon, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/116473.pdf
    Data publikacji:
    2009
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Integrated Bridge Design
    Integration of Navigation
    Situation Awareness Global Assessment Technique (SAGAT) Situation Awareness (SA)
    Integrated Navigation System (INS)
    IMO Performance Standards
    Navigational Bridge
    Bridge Design
    Opis:
    Modular Integrated Navigation Systems (INS) according to the revised IMO performance standards on INS combine and integrate the validated information of different sensors and functions and allow the presentation on the various displays according to the tasks. The aim of the investigations discussed within this paper was to assess the advantages of an INS design compared to a traditional bridge layout with respect to the execution of collision avoidance and route monitoring tasks. The Situation Awareness Global Assessment Technique (SAGAT) approach was applied to assess Situation Awareness (SA) during these operations while bridge design and out of window visibility were manipulated. Additionally, workload was measured by NASA-TLX with its six subscales. The experiment was conducted in a full immersive simulation environment with 26 experienced mariners. The results indicate that SA is significantly higher with the INS bridge design in the reduced visibility condition compared to the traditional bridge design. Also, tendencies were found that workload and subdimensions are influenced by bridge design and visibility conditions.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 1; 67-72
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Design and Cultural Aspects of 20th Century Chinese Xiangjin Brocade
    Autorzy:
    Wenji, Zhao
    Rongrong, Cui
    Li, Niu
    Powiązania:
    https://bibliotekanauki.pl/articles/2172002.pdf
    Data publikacji:
    2022
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
    Tematy:
    Xiangjin brocade
    design feature
    oriental art feature
    weaving technique
    pattern schema
    Opis:
    As one of the representative silk-woven artworks of the 20th century in China, Chinese Xiangjin brocade, well-known as "the flower of Oriental art", draws on the essence of Sichuan brocade, Yun brocade, Song brocade, so as to form its own unique artistic style. It also takes the lead in the innovation of traditional brocade in key processes such as craftsmanship, design and jacquard, whose drawing technique is the exact core skill making it intangible cultural heritage. So far, there have been few studies on crafts and textile design in China before the 20th century or even after the reform and opening up, and rather fewer studies on the structure of Xiangjin brocade in the 20th century. This paper attempts to record and classify 1008 pieces of Xiangjin brocade in the Suzhou Silk Archive, China, as well as to find out their design features, oriental flavour, and unique weaving techniques. In addition, the cultural connotation of Xiangjin brocade as the painting medium was also put forward by analysing those brocades’ historical texts, images, and style.
    Źródło:
    Fibres & Textiles in Eastern Europe; 2022, 3 (151); 116--129
    1230-3666
    2300-7354
    Pojawia się w:
    Fibres & Textiles in Eastern Europe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dynamic vibration absorbers – optimization and design
    Autorzy:
    Pelekh, Ya.
    Diveyev, B.
    Hlobchak, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/410921.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Oddział w Lublinie PAN
    Tematy:
    rotating machines
    discreet-continuum theory
    modal analysis
    dynamic vibration absorber
    optimal design
    electrical plants
    gas- and oil pipelines
    aerospace technique
    chisel installation
    cars
    magneto-optical disks
    home appliances
    maszyny wirujące
    teoria układów dyskretno-ciągłych
    analiza modalna
    absorber wibracyjno-dynamiczny
    optymalne kształtowanie
    elektrociepłownie
    rurociągi naftowo-gazowe
    technika lotnicza
    samochody
    dyski magnetyczno-optyczne
    sprzęt AGD
    Opis:
    The main aim of the paper is improved dynamic vibration absorbers (DVA) design, taking into account the complex rotating machines dynamics. It is often impossible to balance the rotating elements so as to reduce the vibration to an acceptable level. The paper considers the provision of DVA or number of such DVA. Such originally designed DVA reduces vibration selectively in the maximum mode of vibration without introducing vibration in other modes. The result is achieved at a far lower expense than would be required to replace the concrete and steel foundation with a more massive one. By installing DVA, one can minimize excitation virtually at the source. In order to be more effective, a vibration absorption system should react in all the frequency domains. The present absorber also has as an advantage that it can be constructed so that it has a wide-range vibration absorption property. This construction allows for an easy connection of the above rotor equipment. In order to determine the optimal parameters of DVA, the complete modeling of the rotating machine dynamics is obvious. The two degrees of freedom model are totally inadequate to accurately calculate the vibration frequencies of the construction and therefore, for a sufficiently accurate determination of its dimensional characteristics so as to determine such frequencies. It is therefore necessary in practice to dimension the construction through more complex modeling. In particular, concentrated mass and rigidity calculation methods may be adopted based on an even more accurate theoretical determination. The numerical schemes (NS) row is considered for the complex vibration-excited constructions. Methods of decomposition and the NS synthesis are considered on the basis of new methods of modal synthesis. Complex NS are obtained of discretely-continua type, which enables in the adaptive mode to calculate tension not only in the continuum elements, but in the places of the most tension concentration in joints. Traditional design methodology, based on discontinuous models of structures and machines is not effective for high frequency vibration. The present research develops a modern prediction and control methodology, based on complex continuum theory and application of special frequency characteristics of structures. Complex continuum theory allows to take into consideration system anisotropy, supporting structure strain effect on equipment motions and to determine some new effects that are not described by ordinary mechanics of the continuum theory. The absorbers in accordance with this paper may be applied not only to electric machines ore aeronautic structures, but also to any other type of vibration-excited structure, such as cars, chisel installation, optical, magneto-optical disks, washing machines, refrigerators, vacuum cleaners, etc.
    Źródło:
    ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2017, 6, 1; 23-30
    2084-5715
    Pojawia się w:
    ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Taguchi-Grey Relational Analysis of Gating System Design on Mechanical Properties of Casting
    Autorzy:
    Ingle, P. D.
    Narkhede, B. E.
    Powiązania:
    https://bibliotekanauki.pl/articles/383260.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    mechanical properties
    gating system design
    aluminum casting
    Taguchi technique
    Grey Relational Analysis
    GRA
    właściwości mechaniczne
    stopy aluminium
    techniki Taguchi
    Gray Relational Analysis
    Opis:
    Throughout the casting process, mold filling plays a very significant role in the casting quality control. It is important to study the effect of gating system design on ingate velocity of the metal which affects the mechanical properties of casting. The effect of varying the design of four gating system elements namely pouring cup, sprue height, runner and ingate design on the multiple responses like tensile strength and percentage elongation is studied using a Taguchi’s L9 OA. The Taguchi technique was coupled with a Grey Relational Analysis (GRA) to obtain a Grey Relational Grade (GRG) for evaluating multiple responses. ANOVA has been applied to identify the significance of different parameters and it was found that the pouring cup design and the runner cross-section along its length collectively contributed above 76% of the total GRG value. Finally, the confirmation tests were performed to validate the predicted optimized results and it established an improvement of 9.90% from the initial design.
    Źródło:
    Archives of Foundry Engineering; 2019, 3; 72-77
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Methodological importance of legal constructions and their influence on the legal norms interpretation
    Autorzy:
    Serediuk, Vitalii
    Powiązania:
    https://bibliotekanauki.pl/articles/10489850.pdf
    Data publikacji:
    2023-06-30
    Wydawca:
    Wydawnictwo Adam Marszałek
    Tematy:
    law enforcement
    legal technique
    non-contradiction
    law-making
    normative design
    estoppel
    Opis:
    The article reveals the methodological significance of legal constructions and shows their influence on the interpretation of legal norms. It has been found that legal construction is one of the epistemological tools of legal science and means of interpreting legal norms in the process of their implementation. A concentrated expression of the possible conditions of law enforcement determines the methodological significance of legal constructions during the interpretation of legal norms. The legal construction is shown as a set of stable connections of the object, which ensure its integrity and identity. Emphasis is placed on the fact that intraindustry and inter-industry connections of legal norms allow law to preserve its properties as a regulatory in the face of internal and external changes, to be stable and stable. The existence of a stable structure determines the existence of law as a system is a condition for the existence of law. The author came to the conclusion that in order to optimize legal interpretation activity, it is necessary to improve the process of eliminating defects in legal constructions. The ambiguity and inconsistency of legal constructions is a consequence of the increase in the number of scientific terms, special expressions, contradictions and gaps in the normative material. The reason for this is hasty normative design without compliance with the requirements of legal technique. With the help of legal constructions, insightful, detailed and in-depth clarification of the content of legal norms is carried out.
    Źródło:
    Krakowskie Studia Małopolskie; 2023, 2(38); 26-36
    1643-6911
    Pojawia się w:
    Krakowskie Studia Małopolskie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optimizing sampling parameters of cmm data acquisition for machining error correction of freeform surfaces
    Autorzy:
    Poniatowska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/386245.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
    Tematy:
    freeform surface
    machining error correction
    coordinate measurement
    measurement parameters
    design of experiment technique
    Opis:
    An optimization study using the design of experiment technique is described, in which the surface profile height of a freeform surface, determined in coordinate measurements, is the response variable. The control factors are coordinate sampling parameters, i.e. the sampling grid size and the measuring tip diameter. As a result of the research, an optimal combination of these parameters was found for surface mapping with acceptable measurement uncertainty. The presented study is the first stage of optimization of machining error correction for the freeform surface and was intended to take into account mechanical-geometric filtration of surface irregularities caused by these geometrical parameters. The tests were carried out on a freeform workpiece milled with specific machining parameters, Ra of the surface roughness was 1.62 μm. The search for the optimal combination of parameters was conducted using Statistica software.
    Źródło:
    Acta Mechanica et Automatica; 2018, 12, 4; 265-269
    1898-4088
    2300-5319
    Pojawia się w:
    Acta Mechanica et Automatica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Relief perspektywiczny jako technika projektowa elewacji nowożytnych. Czas baroku
    Illusionistic relief as a design technique in the modern facades. Time of the Baroque
    Autorzy:
    Ludwig, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/293500.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    architektura nowożytna
    perspektywa
    barok
    technika projektowa
    modern architecture
    perspective
    Baroque
    design technique
    Opis:
    Artykuł prezentuje wykorzystanie technik zapożyczonych z rzeźby – reliefu niskiego do wysokiej płaskorzeźby – w projektach architektonicznych czasu baroku. Technika reliefu perspektywicznego była wynalazkiem renesansu. Jednak wszystkie jej możliwości wyzyskali dopiero projektanci barokowi. Barokowi artyści operowali szeroką gamą nasileń cienia nadających różne wartości plam światłocieniowych i wszelkich efektów modelowania rysunku na elewacji. Śmiało łączyli techniki iluzyjne, poczynając od zastępowania architektury malarstwem, przez stosowanie iluzji optycznej, anamorfoz aż do rodzaju stałych dekoracji.
    The article presents the use of techniques borrowed from sculpture – bas to highreliefs in architectural projects in the time of Baroque. The technique of illusionistic relief was the invention of the Renaissance. However, all its possibilities were not exploited sooner than by the Baroque designers. The Baroque artists operated with a range of all intensity of shadow, creating the different values of the chiaroscuro spots and any effects of modelling drawing on the facade. They connected the illusionistic techniques, starting with replacing the architecture by painting, by use of the optical illusion, anamorphoses up to making a kind of scenographic models.
    Źródło:
    Architectus; 2018, 3 (55); 27-40
    1429-7507
    2084-5227
    Pojawia się w:
    Architectus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Relief perspektywiczny w technice projektowej elewacji nowożytnych. Czas renesansu
    Illusionistic relief as a design technique in the modern facades. Time of Renaissance
    Autorzy:
    Ludwig, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/294175.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    architektura nowożytna
    perspektywa
    renesans
    technika projektowa
    modern architecture
    perspective
    Renaissance
    design technique
    Opis:
    Artykuł prezentuje wykorzystanie w projektach architektonicznych czasu renesansu technik zapożyczonych z rzeźby – od reliefu niskiego do wysokiej płaskorzeźby. Pojęcie reliefu architektonicznego (rilievo architettonico) jako metody artykulacji elewacji wprowadził do krytyki architektury Giulio Carlo Argan. Rozważając genezę terminu relief, sposób stosowania tej techniki w płaskorzeźbie renesansowej i barokowej oraz zestawiając z przemianami form architektonicznych na elewacjach budynków w czasach nowożytnych, można pokusić się o stwierdzenie, że właśnie ewolucję swoistej techniki reliefu w komponowaniu detalu architektonicznego na ścianach budynków trzeba uznać za podstawę wielu przemian architektury w tym okresie. Analizując dzieła architektury renesansowej pod kątem tej metody, można wskazać podstawowe momenty zmian, które są w większości przypadków zbieżne z przełomowymi okresami w historii architektury. W tekście starano się wykazać adekwatność takiej formy krytyki architektonicznej do opisu osiągnięć architektury nowożytnej.
    The article presents the use of techniques borrowed from sculpture of the Renaissance time – bas- to high-relief in architectural projects. The concept of the “architectural relief” (rilievo architettonico) as a method of articulating the facade was introduced by Giulio Carlo Argan to the critique of architecture. Considering the origins of the term relief, the use of this technique in the Renaissance and Baroque and comparing it to the changes in architectural forms in the facades of buildings in the modern ages, we may conclude, that the evolution of specific relief techniques in composing the architectural detail on the walls of the buildings can be considered as the basis for many of the changes in the architecture of that time. By analyzing the works of the Renaissance which used this method for architecture we can indicate the basic moments of changes, which in most cases coincide with the crucial periods in the history of architecture. In the text it was endeavoured to demonstrate the adequacy of such a form of architectural criticism to describe the achievements of the modern architecture.
    Źródło:
    Architectus; 2018, 1 (53); 61-76
    1429-7507
    2084-5227
    Pojawia się w:
    Architectus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Research on the Creative Application of Origami Performance Techniques in Clothing
    Autorzy:
    Wang, Chenlu
    Yang, Chen
    Li, Junlan
    Zhu, Mingxuan
    Powiązania:
    https://bibliotekanauki.pl/articles/2171965.pdf
    Data publikacji:
    2022
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
    Tematy:
    origami art
    origami technique
    clothing modelling
    creative design
    Opis:
    Origami has various manifestations and rich production techniques, and it is regarded as one of the indispensable contemporary art forms. In order to enrich the creative expressions of fashion design, this paper summarises the creative application forms of origami art in fashion design from the external and moulding characteristics of origami, studies the fabric characteristics through experimental verification, and summarises the applicable techniques of expression. The results show that the folding application forms of origami art and clothing modelling can be realised by using the expression methods of ironing and crimping, stitching texture moulding and repeated combination moulding, that is, pattern deformation folding application, fabric transformation folding application and modular combination folding application. The application of the folding form in clothing three-dimensional modeling and surface texture can give full play to the unique modelling beauty and artistic style of origami art and provide a reference for creative ideas in clothing design.
    Źródło:
    Fibres & Textiles in Eastern Europe; 2022, 4 (151); 43--53
    1230-3666
    2300-7354
    Pojawia się w:
    Fibres & Textiles in Eastern Europe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-10 z 10

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