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Wyszukujesz frazę "Johansen, K." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Origin and development of seamanship competence
Autorzy:
Johansen, K.
Powiązania:
https://bibliotekanauki.pl/articles/2172505.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
seamanship competence
history of navigation
history of shipping
Maritime Education and Training
old testament, seamanship
seamanship training
good seamanship
Opis:
Seafaring is one of the oldest documented human activities, with a rich heritage created by generations of seamen. The first boats were developed several thousand years ago, based on primitive principles, and they were probably not suitable for other than simple purposes. Analyzing the history of boat building shows a gradual change in designs. These design changes were most likely due to improvements, related to different aspects of experiences undergone; the changing activity purposes of the boats; and the continual resolution of a conflict between what is possible and what is desired. Nevertheless, design changes and different improvements were developed in a relationship between experiences gained by sailors and shipbuilders. Therefore, the development of seafaring was probably, both directly and indirectly, based on the experiences of sailors who had gained knowledge of the sea. The first written documentation to support the relationship between sailors and knowledge of the sea is in the Old Testament of the Christian Bible, approximately 950 years before Christ. King Solomon of Israel formed an alliance with the Phoenician king of Tyre, Hiram 1, because he needed the Phoenicians’ ships and naval expertise. “And Hiram sent his servants with the fleet, sailors that have knowledge of the sea, along with the servants of Solomon” (1. King IX – 27). The phrase “sailors with knowledge of the sea” correlates with a partial core of seamanship science. The science of seamanship is a multi-dimensional expression, which concerns seamen’s complete competence in sailing and operating a ship. The purpose of this article is to discuss the origin and development of the ship-operating aspects of seamanship and shed light on aspects of the development and challenges regarding exercise of seamanship competence-related maritime education and training (MET).
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2022, 16, 2; 363--371
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stability of vessels in an ice-free Arctic
Autorzy:
Johansen, K.
Sollid, M. P.
Gudmestad, O. T.
Powiązania:
https://bibliotekanauki.pl/articles/1841599.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Ice-Free Arctic
Maritime Education and Training
stability of vessels
ship stability
Icing
marine Icing model
Polar Low
IMO Polar Code
Opis:
One consequence of the declining ice cover in the Arctic is increased areas of open seas. These new open sea areas lead to some challenging aspects related to ship stability. Longer fetch lengths, associated with build-up of larger waves followed by increased conditions for sea spray icing on vessels is one aspect. Open seas in combination with cold atmospheric temperatures is a prerequisite for polar low pressures to occur. Polar lows may represent an additional aspect of increased icing on vessels by heavy snow in addition to extensive sea spray ice accretion. Over the last decades, different formulas for prediction of sea spray ice accretion rate on ships were developed to form basis for ice accretion warnings. Some of these formulas seem to have certain limitations and appear to be conservative. Important limitations of some formulas are considerations regarding heat flux, relationship between wind and waves, and ice accretion related to Polar lows. This paper will take a closer look at the accuracy and the realism of different ice accretion formulas and, related to this aspect, we will also discuss whether ship officer candidates receive sufficient maritime education and training (MET) related to realistic ice accretion and ship icing aspects.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 3; 663-671
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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