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    Tytuł:
    Potentials of e-Navigation – Enhanced Support for Collision Avoidance
    Autorzy:
    Baldauf, M.
    Benedict, K.
    Krüger, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/116902.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    safety at sea
    Collision Avoidance
    e-Navigation, Maritime Cloud
    marine navigation
    Fleet Operation Centre (FOC)
    Fast Time Simulation (FTS)
    Risk Control Option (RCO)
    Opis:
    The e-Navigation initiative of IMO and IALA has stimulated and inspired a number of ambitious research projects and technological developments in the maritime field. The global transportation of goods is not only facing rapidly growing ship dimensions but also increasing industrial off shore activities, changing the relation between the need of areas for safe and reliable vessel traffic and its availability. Off shore activities is increasingly limiting the available navigable spaces and concentrating traffic flows, especially in coastal waters and port approaches. Enhanced technical systems and equipment with numerous added functionalities are in use and under further development providing new opportunities for traffic surveillance and interaction. Integrated Bridge and Navigation Systems on board modern ships not only support the bridge teams and pilots on board, but also allow for more comprehensive shore-based traffic monitoring and even allow for re-thinking of existing regimes and procedures on traffic management. A sophisticated manoeuvring support tool using fast real-time simulation technology and its application for on board support as well as for its potential integration into enhanced shore-based monitoring processes when linked with the ‘Maritime Cloud’ will be introduced. The potential for contribution to generate harmonized collision warnings will be discussed and explained. This paper is a reviewed and extended version of (Baldauf, Benedict & Gluch, 2014).
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8 no. 4; 613-617
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Manoeuvring areas to adapt ACAS for the maritime domain
    Autorzy:
    Baldauf, M.
    Mehdi, R.
    Deeb, H.
    Schröder-Hinrichs, J. U.
    Benedict, K.
    Krüger, C.
    Fischer, S.
    Gluch, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/135052.pdf
    Data publikacji:
    2015
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    situation-dependent analysis
    risk assessment
    risk of collision
    collision probability
    prediction of manoeuvring areas
    potential areas of water
    fast time simulation
    Opis:
    Rapidly increasing numbers of ships and ship sizes pose an ever-growing challenge to the maritime industry. Although statistics indicate improved levels of safety in the industry which carries 90% of the world’s trade, the risk of navigational accidents, among other issues, remains a prime concern and priority (EMSA, 2010; 2014). In order to address these concerns, the authors turned to another high-risk industry for inspiration. Specifically, they turned to the aviation industry, which has often been used as a source of comparisons and ideas by researchers in the maritime domain. Keeping up with the trend, the authors of this paper turn to a tried-and-tested system used widely in modern aviation: the Airborne Collision Avoidance System (ACAS). The prime idea behind ACAS is to construct two virtual 3D zones around an aircraft. These zones are dynamic, and depend on the manoeuvring characteristics of a given aircraft. If the system detects an “intruder” (another aircraft) in either of the two well-defined virtual zones, it provides warnings and/or instructions to pilots of both aircraft to take certain precautionary or emergency measures. In the current paper, the authors explore whether or not such a system is feasible for use in the maritime domain and, if so, how. The paper provides a detailed analysis of the potential benefits and drawbacks of using an ACAS-like system onboard vessels. It also discusses possible means of implementation and integration with current equipment, and explores how the introduction of e-navigation may impact the proposed solution.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2015, 43 (115); 39-47
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Measurement and classification methods using the ASAE S572.1 reference nozzles
    Autorzy:
    Fritz, B.K.
    Hoffmann, W.C.
    Czaczyk, Z.
    Bagley, W,
    Kruger, G.
    Henry, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/66858.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    measurement method
    classification method
    droplet size
    laser diffraction
    reference nozzle
    Opis:
    An increasing number of spray nozzle and agrochemical manufacturers are incorporating droplet size measurements into both research and development. Each laboratory invariably has their own sampling setup and procedures. This is particularly true about measurement distance from the nozzle and concurrent airflow velocities. Both have been shown to significantly impact results from laser diffraction instruments. These differences can be overcome through the use of standardized reference nozzles and relative spray classification categories. Sets of references nozzles, which defined a set of classification category thresholds, were evaluated for droplet size under three concurrent air flow velocities (0.7, 3.1 and 6.7 m/s). There were significant, though numerically small, differences in the droplet size data between identical reference nozzles. The resulting droplet size data were used to categorize a number of additional spray nozzles at multiple pressure and air flow velocities. This was done to determine if similar classifications were given across the different airspeeds. Generally, droplet size classifications agreed for all airspeeds, with the few that did not, only differing by one category. When reporting droplet size data, it is critical that data generated from a set of reference nozzles also be presented as a means of providing a relative frame of reference.
    Źródło:
    Journal of Plant Protection Research; 2012, 52, 4
    1427-4345
    Pojawia się w:
    Journal of Plant Protection Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparison of an ultra-low volume (ULV) sprayer against a conventional sprayer, for foliar fertiliser and fungicide applications in turfgrass
    Autorzy:
    Ferguson, J.C.
    Gaussoin, R.E.
    Eastin, J.A.
    Sousek, M.D.
    Kruger, G.R.
    Powiązania:
    https://bibliotekanauki.pl/articles/65667.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    comparison
    ultra-low volume sprayer
    sprayer
    conventional sprayer
    foliar fertilizer
    fungicide
    application
    turf grass
    Rhizoctonia solani
    Opis:
    Two field studies (I and II) at the University of Nebraska-Lincoln: John Seaton Anderson Turfgrass Research Facility near Mead, NE, USA, were conducted to determine if a new ultra-low volume (ULV) sprayer can apply foliar nutrient, growth regulator, and fungicide treatments, in a manner similar to that of a conventional sprayer. Treatments were applied over creeping bentgrass ‘L-93’ (Agrostis stolonifera L.) managed as a fairway at 561 l · ha−1 and 47 l · ha−1 with the conventional and ULV sprayer, respectfully. Data were collected for chlorophyll content with a chlorophyll meter, and for the normalised difference vegetation index (NDVI) with a turf colour meter. Each plot was harvested for biomass at 21 days after treatment. Study II compared the ULV sprayer and a conventional sprayer, for the control of brown patch (Rhizoctonia solani Kuhn) in creeping bentgrass. The treatments were propiconazole and azoxystrobin. Spray volume was 561 l · ha−1 for the conventional sprayer, and 19 l · ha−1 for the ULV sprayer. Statistical differences in turf quality or dry weight reductions between the conventional and ULV sprayer were not detected. Brown patch control was also similar between the two sprayers, but azoxystrobin provided better control than propiconazole. Even with a 30-fold decrease in application volume, the results indicated that the Kamterter ULV sprayer may be a useful and effective management option for foliar fertiliser and fungicide applications in turfgrass.
    Źródło:
    Journal of Plant Protection Research; 2016, 56, 1
    1427-4345
    Pojawia się w:
    Journal of Plant Protection Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Developing a comprehensive Drift Reduction Technology risk assessment scheme
    Autorzy:
    Ferguson, J.C.
    Hewitt, A.J.
    Eastin, J.A.
    Connell, R.J.
    Roten, R.L.
    Kruger, G.R.
    Powiązania:
    https://bibliotekanauki.pl/articles/66266.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Opis:
    Drift Reduction Technologies (DRTs) are becoming increasingly important for improving spray applications in many countries including New Zealand (NZ). Although there is a growing database on the performance of DRTs, there is no rating system showing the effectiveness of the DRT’s performance. In Europe, DRTs are classified relative to current reference technologies as part of the rating systems used to establish spray drift risk reduction. We have recommended some key elements of such a comprehensive exposure risk reduction scheme for any country, based on prior and on-going research into the performance of specific DRTs in row, tree, and vine crops. Our intention was to create a rating system to determine the effectiveness of a given technology. This rating system would improve spray application practices and environmental stewardship for a wide range of crops and application scenarios.
    Źródło:
    Journal of Plant Protection Research; 2014, 54, 1
    1427-4345
    Pojawia się w:
    Journal of Plant Protection Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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