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Wyświetlanie 1-10 z 13
Tytuł:
Clusters and their role in the new knowledge economy
Autorzy:
Šimon, P.
Powiązania:
https://bibliotekanauki.pl/articles/118103.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Promocji Wiedzy
Tematy:
cluster
cooperation
mechatronics
feasibility study
Pilsen region
Opis:
Today the next development leads to building worldwide nets creating the product´s value. We can talk about the idea of clusters. Cluster is building the connections not only among the business subjects but also the other organizations and institutions. The main purpose of that is mutual effect. This article gives more details about the types, definitions and advantages of clusters. Building of clusters started in the Czech Republic in the Pilsen region as well and the feasibility study of the opportunity of clusters building was composed. The own methodology for formulating the feasibility study is described in this article as well.
Źródło:
Applied Computer Science; 2005, 1, 1; 43-60
1895-3735
Pojawia się w:
Applied Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Exploring the need for a new paradigm in engineering management and the decision-making process in technology-based organisations
Autorzy:
Philbin, Simon P.
Kennedy, Donald
Powiązania:
https://bibliotekanauki.pl/articles/1818989.pdf
Data publikacji:
2020
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
engineering management
engineering projects
decision-making
new paradigm
zarządzanie inżynierskie
projekty inżynierskie
podejmowanie decyzji
Opis:
Engineering management and engineering projects are subject to greater levels of uncertainty and complexity as part of the current dynamic and competitive industrial environment. Engineering managers need to navigate the arising challenges and consequently gain access to effective decision-making processes. Engineering education has a clear role to play here. However, formal education in quantitative methods is only part of the solution — engineers and engineering managers should also have access to a broader set of skills and knowledge to be effective in the industrial landscape. Therefore, we now need a new paradigm for engineering management and the decision-making process. This article draws on supporting material from the literature and the insights gained from a series of industrial cases using the participatory action research method and a process of inductive reasoning to allow synthesis of generalised propositions that are linked to the industrial cases and antecedent factors from the literature. The findings lead to a set of areas that require further development to support engineering managers to be more effective when dealing with increasing levels of uncertainty and complexity. This includes a number of areas, which are as follow: the need for engineering managers to have enhanced professional skills and knowledge; the importance of experience-based judgement; effective knowledge management; supportive leadership and overall organisational culture; and a holistic approach to decision-making. The research study has practical relevance to engineering management practitioners working in industrial companies to support self-evaluation and professional development. The findings are also pertinent to academic researchers seeking to evaluate decision-making models as part of extending the current understanding of the field of engineering management in technology-based organisations.
Źródło:
Engineering Management in Production and Services; 2020, 12, 4; 7--21
2543-6597
2543-912X
Pojawia się w:
Engineering Management in Production and Services
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The comparison of selected methods of cast iron spheroidization in industrial conditions
Autorzy:
Válek, T.
Šimon, P.
Střílková, L.
Powiązania:
https://bibliotekanauki.pl/articles/382802.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
rozwój produktu
żeliwo sferoidalne
metoda modyfikacji
drut proszkowy
żeliwo ICDP
product development
ductile iron
method of modification
core wire
spun cast rolls
ICDP iron
Opis:
Production of spheroidal graphite cast iron is today quite mastered technology. There are many methods achieving the nodular graphite morphology. Each of these methods have specific characteristics and requirements to technical support, properties and the type of applied modifier. Selection of the spheroidization method is dependent on foundry disposition, production character, economic balance, quality requirements, etc. In case of centrifugally casting the core, which fills body and neck of the roll, is created by ductile iron. Considering the sophisticated production of centrifugally cast rolls for hot rolling mills it is necessary to ensure a high reproducibility and reliability of ductile cast iron production quality in the bulk range of 9-18 t per tapping. These conditions are in the Roll Foundry in Vítkovicke Slevarny, spol. s r.o. provided and verified mastered overpour method and the newly injection of cored wire in the melt.
Źródło:
Archives of Foundry Engineering; 2012, 12, 2; 89-92
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphological Enumeration of Resting Spores in Sporosori of the Plant Pathogen Spongospora subterranean
Autorzy:
Fallon, Richard E.
Merz, Ueli
Lister, Ros A.
Wallace, Andrew R.
Hayes, Simon P.
Powiązania:
https://bibliotekanauki.pl/articles/763573.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
Microscopy, powdery scab, potato, Solanum tuberosum
Opis:
Plasmodiophorid sporosori (aggregations of resting spores) reach their most complex form in Spongospora subterranea f. sp. subterranea, the biotrophic plant pathogen which causes the economically important disease powdery scab of potato (Solanum tuberosum). Resting spores are the perennation life cycle stage of plasmodiophorids, allowing them to survive for long periods and infect subsequent host generations. Light microscopy was used to measure resting spores and sporosori of Sp. subterranea, and enumerate resting spores in individual sporosori. Mean resting spore diameters differed for two sporosorus collections, being 4.0 μm (from New Zealand) and 4.3 μm (from Switzerland). Counts of resting spores in 4 μm thick serial sections of sporosori from one collection gave a mean of 667 (range 155 to 1,526) resting spores per sporosorus. Number of resting spores per sporosorus was closely related to sporosorus volume, and could be accurately estimated using the formula; number of resting spores = 0.0081 × sporosorus volume (assuming sporosori to be spheroids). Using this formula, mean numbers of resting spores in sporosori from 37 Sp. subterranea collections from field-grown potato tubers from 13 countries were determined to range from 199 to 713. Differences in numbers of resting spores between the collections were statistically significant (P < 0.05), and independent of country or host cultivar of origin, indicating that enumeration should be carried out for individual sporosorus collections to accurately quantify inoculum. Morphology, using scanning electron microscopy, also showed that between 2 and 51% (average 20%) of resting spores released zoospores after exposure to roots of host plants. The formula for resting spore enumeration validated in this study can be used to standardise Sp. subterranea resting spore inoculum for plant pathology studies, and possibly to assist determination of soil inoculum potential for disease risk evaluations.
Źródło:
Acta Protozoologica; 2011, 50, 2
1689-0027
Pojawia się w:
Acta Protozoologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects Of Nickel On The Microstructure And The Mechanical Properties Of Sn-0.7Cu Lead-Free Solders
Wpływ niklu na mikrostrukturę i właściwości mechaniczne bezołowiowych stopów lutowniczych Sn-0.7Cu
Autorzy:
Gyenes, A.
Simon, A.
Lanszki, P.
Gacsi, Z.
Powiązania:
https://bibliotekanauki.pl/articles/353640.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Sn-0.7Cu
lead-free solder
Ni addition
microstructre
mechanical properties
bezołowiowy stop lutowniczy
nikiel
mikrostruktura
właściwości mechaniczne
Opis:
This paper investigates the effects of small amount nickel addition (0, 200, 400, 800, 1800 ppm) on the microstructure and the mechanical properties of Sn-0.7Cu lead-free solder alloys. It is known that even ppm level Ni additions have significant effects on the microstructure of Sn-Cu solder alloys. Ni suppresses the growth of β-Sn dendrites in favour of eutectic formation. As the nickel content increases, the microstructure undergoes a morphological evolution from hypoeutectic through fully eutectic to hypereutectic. Along with these transformations, the mechanical properties of the alloy also significantly change. Based on the experimental results presented in this paper, the Sn-0.7Cu solder achieves maximum strength at the addition level of 800 ppm Ni, when the microstructure becomes fully eutectic.
Źródło:
Archives of Metallurgy and Materials; 2015, 60, 2B; 1449-1454
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distribution of mineral nitrogen in soil in relation to risk of nitrate leaching in farms with irrigated vegetables and early potatoes
Autorzy:
Haberle, J.
Svoboda, P.
Simon, T.
Kuresova, G.
Henzlova, B.
Klir, J.
Powiązania:
https://bibliotekanauki.pl/articles/2016.pdf
Data publikacji:
2018
Wydawca:
Instytut Ogrodnictwa
Tematy:
mineral nitrogen
soil
topsoil
subsoil
nitrate content
nitrate leaching
farm
irrigation
early potato
soil water
vegetable production
Źródło:
Journal of Horticultural Research; 2018, 26, 2
2300-5009
Pojawia się w:
Journal of Horticultural Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microstructure And Mechanical Properties Of Al-WC Composites
Mikrostruktura i właściwości mechaniczne kompozytów Al-WC
Autorzy:
Simon, A.
Lipusz, D.
Baumli, P.
Balint, P.
Kaptay, G.
Gergely, G.
Sfikas, S.
Lekatou, A.
Karantzalis, A.
Gacsi, Z.
Powiązania:
https://bibliotekanauki.pl/articles/352222.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
composite
aluminium
WC
microstructure
mechanical properties
kompozyt
mikrostruktura
właściwości mechaniczne
Opis:
The scope of the research work is the production and characterization of Al matrix composites reinforced with WC ceramic nanoparticles. The synthesis process was powder metallurgy. The produced composites were examined as far as their microstructure and mechanical properties (resistance to wear, micro/macrohardness). Intermetallic phases (Al12W and Al2Cu) were identified in the microstrucutre. Al4C3 was not detected in the composites. Adding more than 5 wt% WC to the aluminum, microhardness and wear resistance exceed the values of Al alloy. Composites having weak interface bond performed the highest wear rate.
Źródło:
Archives of Metallurgy and Materials; 2015, 60, 2B; 1517-1521
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
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