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Wyszukujesz frazę "Morgan, J." wg kryterium: Autor

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    Wyświetlanie 1-7 z 7
    Tytuł:
    A service-oriented reconfigurable process monitoring system - enabling cyber physical systems
    Autorzy:
    Morgan, J.
    O'Donell, G. E.
    Powiązania:
    https://bibliotekanauki.pl/articles/100043.pdf
    Data publikacji:
    2014
    Wydawca:
    Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
    Tematy:
    communication
    manufacturing system
    process monitoring
    decentralization
    Opis:
    Communication is an essential requirement for collaborative manufacturing systems. However the diversity of communication media and protocols in machine tools, automation equipment, and associated proprietary software, presents a challenge for enabling capable, extensible and re-configurable process monitoring systems. Additionally, as process control systems evolve from centralised hierarchical structures to decentralised heterarchical communities, enabling media and tools are required to provide interoperability between systems and subsystems. The focus of this research is to introduce a manufacturing decentralised process monitoring architecture that utilises a service-oriented architecture framework for network-wide dynamic data acquisition and distribution. The system design is created using a combination of service-oriented architecture topology and technical modelling. Service-oriented communication structure and capability is given particular focus, resulting in a comparative study of message structures and communication speeds. The resultant system is modular in structure, reconfigurable, network-distributable, interoperable, efficient, and meets real-time requirements.
    Źródło:
    Journal of Machine Engineering; 2014, 14, 2; 116-129
    1895-7595
    2391-8071
    Pojawia się w:
    Journal of Machine Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Data interoperability for reconfigurable manufacturing process monitoring systems
    Autorzy:
    Morgan, J.
    O'Driscoll, J.
    O'Donell, G. E.
    Powiązania:
    https://bibliotekanauki.pl/articles/99743.pdf
    Data publikacji:
    2013
    Wydawca:
    Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
    Tematy:
    agent based design
    process monitoring
    data interoperability
    Opis:
    The ability for manufacturing organisation to be responsive to changing market conditions is imperative for sustainable market competitiveness, and enabling self preservation. Responsive behaviour requires the incorporation of not only robust sustainable manufacturing process chains, but the functional capacity to facilitate reconfiguration and adaption. Manufacturing process chains require process monitoring and condition based monitoring systems to achieve high accuracy manufacturing systems, sustainable production capability, and resource efficiency. The focus of this research is aimed at developing a novel data interoperability architecture to enable the creation of reconfigurable process monitoring systems. To achieve reconfigurable process monitoring capability an information communication paradigm known as agent based design is reviewed, and an emerging agent based standard known as MTConnect is also reviewed. Through this research a novel data interoperability system is developed and defined to enable dynamic data acquisition for reconfigurable process monitoring. A case study is carried out to demonstrate the validity of the architecture to achieve multi data stream unification. This case study demonstrates the ability to actively condition monitor a HURCO VM2 three axis CNC machine dynamically, through the measurement of machine energy requirements and vibration, which are examples of process variables associated with condition based machine monitoring.
    Źródło:
    Journal of Machine Engineering; 2013, 13, 1; 64-79
    1895-7595
    2391-8071
    Pojawia się w:
    Journal of Machine Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of shallow subsurface flow pathway networks on corn yield spatial variation under different weather and nutrient management
    Autorzy:
    Morgan, B.J.
    Daughtry, C.S.T.
    Russ, A.L.
    Dulaney, W.P.
    Gish, T.J.
    Pachepsky, Y.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2082501.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    subsurface flow pathways
    ground penetrating radar
    geographic weighted regression
    corn yield
    Opis:
    Ground water availability can be a major spatially variable factor of crop yields. In soils with the infiltration-restricting layer, ground water can be organized in the network of channels that conduct water laterally in wet periods and become water storage and water subsidy sources for plants in dry periods. The objective of this work was to quantify the relationships between the distances to the subsurface flow pathway network and corn yield for different weather conditions and nutrient management. Corn yield was monitored across the manured and chemically fertilized fields at the USDA-ARS OPE3 experimental site in Maryland. Data were collected during dry, normal, and above normal years in terms of the amount of precipitation from planting to physiological maturity. The subsurface flow pathway network was delineated using ArcGIS from data on topography of the infiltration-restricting layer found mostly at depths between one and three meters. The geographically weighted regression was used. Adjusted determination coefficients of regressions ranged from 0.485 to 0.655. Decrease of the adjusted determination coefficients from a dry to normal year and an increase from the normal to wet year was found. Factoring the subsurface flow pathway network influence into crop management can be an important component of precision farming strategies.
    Źródło:
    International Agrophysics; 2019, 33, 2; 271-276
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Gallium Arsenide And Related Compounds For Device Applications
    Autorzy:
    Wood, J.
    Morgan, D.V.
    Powiązania:
    https://bibliotekanauki.pl/articles/1877555.pdf
    Data publikacji:
    1991-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    72.80.Ey
    73.40.Κρ
    78.20.Fs
    Opis:
    The device applications of gallium arsenide and related III-V compound and alloy semiconductors are reviewed. A range of electronic devices is described, and the current state of the art performance is indicated for each type of device. The devices which will be described are: transferred electron devices — as oscillators up to 200 GHz, GaAs MESFETs — the workhorse microwave solid state device, some monolithic microwave integrated circuit /MMIC/, and heterojunction devices. The use of molecular beam epitaxy MBE to grow III-V semiconductors with great. control over the doping, mole fraction of the constituents and the thickness of the epilayer has permitted the construction of devices with atomically abrupt interfaces between regions of different doping and alloy. The electronic devices which make use of such abrupt heterojunctions include: high electron mobility transistors, heterojunction bipolar transistor, and laser diodes. A number of novel devices based on multiple barrier and quantum well structures is also described, including Resonant Tunneling Devices.
    Źródło:
    Acta Physica Polonica A; 1991, 79, 1; 97-116
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Applications of recent advances at the Institute of Grassland and Environmental Research in cytogenetics of the Lolium-Festuca complex
    Autorzy:
    Humphreys, M W
    Thomas, H M
    King, I P
    Morgan, W G
    Meredith, M R
    Harper, J A
    Humphreys, M O
    Bettany, A J E
    Dalton, S J
    James, A R
    Ougham, H J
    Thomas, H
    Powiązania:
    https://bibliotekanauki.pl/articles/2046675.pdf
    Data publikacji:
    1997
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    RNA
    in situ
    tissue culture
    gene transfer
    chromosome segment
    anther culture
    androgenesis
    plant breeding
    introgression mapping
    fluorescence
    hybridization
    Lolium-Festuca complex
    drought resistance
    gene isolation
    tetraploid hybrid
    DNA
    meiosis
    grass
    chromosome behaviour
    Opis:
    Recent advances at Institute of Grassland and Environmental Research (Aberystwyth, U.K.) in cytogenetics of the Lolium/Festuca complex places us in the advantageous position of being able to map genes of agronomic importance onto chromosome arms using fluorescence in situ hybridization (FISH). The ability to physically map genes leads to the capability for "dissecting" quantitative traits into their different components and will lead to better understanding of the complex physiological processes involved and the identification of their genetic control. By tagging genes of interest, using molecular and morphological markers, it will be possible to select and combine suites of desirable genes in a single genotype and thus produce novel cultivars by conventional breeding procedures. Programmes for introgression depend on the relationships between species and on levels of chromosome pairing. Phylogenetic relationships within the Lolium/Festuca complex are being determined using both genomic in situ hybridization (GISH) and FISH. With recent advances in genetic manipulation within the Lolium/Festuca complex, opportunities now arise for gene transfer from Lolium and Festuca species into other important agricultural crops.
    Źródło:
    Journal of Applied Genetics; 1997, 38, 3; 273-284
    1234-1983
    Pojawia się w:
    Journal of Applied Genetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Software Startups – A Research Agenda
    Autorzy:
    Unterkalmsteiner, M.
    Abrahamsson, P.
    Wang, X. F.
    Nguyen-Duc, A.
    Shah, S.
    Bajwa, S. S.
    Baltes, G. H.
    Conboy, K.
    Cullina, E.
    Dennehy, D.
    Edison, H.
    Fernandez-Sanchez, C
    Garbajosa, J.
    Gorschek, T.
    Klotins, E.
    Hokkanen, L.
    Kon, F.
    Lunesu, I.
    Marchesi, M.
    Morgan, L.
    Oivo, M.
    Selig, C.
    Seppänen, P.
    Sweetman, R.
    Tyrväinen, P.
    Ungerer, C.
    Yagüe, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/953060.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    software startup
    research agenda
    software-intensive systems
    Opis:
    Software startup companies develop innovative, software-intensive products within limited time frames and with few resources, searching for sustainable and scalable business models. Software startups are quite distinct from traditional mature software companies, but also from micro-, small-, and medium-sized enterprises, introducing new challenges relevant for software engineering research. This paper’s research agenda focuses on software engineering in startups, identifying, in particular, 70+ research questions in the areas of supporting startup engineering activities, startup evolution models and patterns, ecosystems and innovation hubs, human aspects in software startups, applying startup concepts in non-startup environments, and methodologies and theories for startup research. We connect and motivate this research agenda with past studies in software startup research, while pointing out possible future directions. While all authors of this research agenda have their main background in Software Engineering or Computer Science, their interestin software startups broadens the perspective to the challenges, but also to the opportunities that emerge from multi-disciplinary research. Our audience is therefore primarily software engineering researchers, even though we aim at stimulating collaborations and research that crosses disciplinary boundaries. We believe that with this research agenda we cover a wide spectrum of the software startup industry current needs.
    Źródło:
    e-Informatica Software Engineering Journal; 2016, 10, 1; 89-123
    1897-7979
    Pojawia się w:
    e-Informatica Software Engineering Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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