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1

Starożytna symbolika morza i łodzi w wypowiedziach Ojców Kościoła

100%

Wróbel R.

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2008

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tom 52

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nr 2

1245-1256

EN

The starting point of this article is to compare the sea and the life, which for people from the Mediterranean culture was something completely natural. Bearing in mind the numerous statements of the Fathers of the Church, we try to discover the source of such beliefs. We do this based on the three most popular marine allegories: the sea, the boat and ‘rescue board’, which stayed for good in patristic though. Because of the theme of the work we drew attention only to those elements which are obviously useful in better understanding of the patristic interpretation of the pericope about ‘Stilling of the Storm’. Special attention was given to the three groups of texts about: ‘boat of the State’, ‘boat of the soul’ and ‘boat of the world’, which could have a tangible influence on forming the thought of the Fathers of the Church associated with the symbolism of the Church boat. The way in which the Fathers of the Church use the complex symbols of Hellenist world shows theirs keen interest in current matters of the ordinary men and influence which faith rendered on their lives in the individual, as well as social dimension. The ancient symbolism inherent in the maritime assets in the context of patristic exegesis and constitutes an indelible part of theology of the original Church. The proper understanding is therefore of great importance for the correct interpretation of patristic writers’ views, particularly their views on the Church.

2

BWTBoat as an innovative solution to the problem of ballast water treament in the light of the ballast convention

63%

Barańska M. , Patil S.

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tom R. 18, nr 6

59--62, CD

EN

The article discusses the concept of using specialist BWTBoat developed by the Indian Register of Shipping (IRClass) as an innovative solution to the problem of ballast water treatment. The article presents a concept of mobile ballast water treatment boats delivering treated ballast water in reference to the requirements of the International Convention for the Control and Management of Ships' Ballast Water and Sediments (BWMC, adopted under the auspices of International Maritime Organisation in London in 2004), which will come into force on 8 Sep 2017. The article presents the possibility to use BWTBoats as other method of ballast water management.

PL

W artykule omówiona została koncepcja wykorzystania specjalistycznych barek (BWTBoat) opracowana przez Indyjskie Towarzystwo Klasyfikacyjne (IRClass) jako innowacyjne rozwiązanie problemu oczyszczania wód balastowych . Artykuł przedstawia koncepcję mobilnych barek w odniesieniu do wymogów Międzynarodowej Konwencji o Kontroli i Postępowaniu ze Statkowymi Wodami Balastowymi i Osadami (BWMC, przyjętej pod auspicjami Międzynarodowej Organizacji Morskie) w Londynie w 2004r., która wejdzie w życie w dn. 08.09.2017r. Artykuł prezentuje możliwości zastosowania BWTBoats jako innej metody zarządzania wodami balastowymi.

3

Specyfika urządzeń mobilnych na przykładzie rzeczywistych obiektów mechatronicznych

63%

Filipek P. , Kamiński T.

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tom nr 4

3203--3212, CD2

PL

Artykuł przedstawia zestawienie oraz podział obecnie znanych i stosowanych mobilnych systemów transportowych wraz z konkretnymi przykładami. Zawiera przykłady rzeczywistych obiektów mechatronicznych zbudowanych na Politechnice Lubelskiej w ramach naukowego koła zastosowań mechatroniki ELMECH, wraz z ich specyfikacją.

EN

The article presents parallel and division presently known and using mobile transport system with real examples. Included samples real mechatronics objects with specification to build on Lublin University of Technology by research mechatronics club ELMECH.

4

Investigation of the Aerodynamic Drag Force Exerted on a Powerboat

63%

Czyż Z. , Karpiński P. , Boujelbene C.

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tom Vol. 14, no 3

141--148

EN

The aerodynamics of powerboats used in inshore powerboat racing has a significant impact on their performance. The aerodynamic drag forces generated on individual elements of this type of boats were tested. The solid model of the boat developed in the CAD software was used for the calculations. The computational grid was generated, as well as the boundary conditions and the turbulence model, were determined. On the basis of such assumptions, the numerical calculations were carried out using the CFD method. The results from the numerical simulations consist of a description of the velocity and pressure distribution around the tested object and identification of the drag force on the components of the powerboat with a description of the relationship between them. Additionally, the variation of the drag force as a function of speed in the range from 0 to 60 m/s was presented. The tests were performed for 5 values of the angle of attack of the boat to the surface of water in the range from 0° to 12°. The scope of the research allowed for the development of a drag force map depending on the defined parameters. The test results can be used to optimize the shape of the boat structure in order to reduce the aerodynamic drag generated on its individual elements.

5

Dwa średniowieczne wraki odkryte w 2021 roku w Gdańsku przy ul. Wałowej 35

44%

Rembisz-Lubiejewska A. , Litwinienko P. , Kocińska M. K. , Gomulski P. , Muntowski P.

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tom Tom XXXII

115–144

EN

During archaeological research carried out in 2021 at 35 Wałowa Street in Gdańsk by the CRA Baltica Sp. z o. o. team under the direction of Piotr Gomulski, in the place of the former gasworks and the remains of the Shipyard Gate, within the flow around the post-medieval fortifications, two wrecks with construction solutions characteristic of two different boatbuilding traditions were uncovered. The wreck Wałowa 35.1 constitutes the remains of a large stave boat (length approx. 15 m, width approx. 3.5 m, height approx. 0.95 m), built using the shell-first technique after 1295 in a local Pomeranian boatbuilding workshop. From the original structure of the vessel stem, T-shaped keel, seven floors, two frames, five strakes of port side plating and six strakes of starboard side plating have been preserved. The staves were connected with wooden pins and sealed with moss. The stem was connected to the keel by a diagonal lock. In the upper surface of the keel, behind the lock, there is a characteristic rectangular hole to be used for attaching the clamps holding the first staves of the shell during the construction of the vessel. In the stem, in turn, there is a hole for attaching ropes to pull the vessel ashore. Inside the structure there was a fragment of a cleat (?), while inside and next to the wreck two bark floats were found. This vessel was used for sailing on the Vistula, fishing in inland and coastal waters of the Baltic Sea. The wreck Wałowa 35.2 constitutes the remains of a small ship (approx. 16.5 m long, 4.7 m wide, 1.35 m high) built using the shell-first technique after 1250 in the vicinity of Lund (Scania). From the original ship's structure survived fragment of stem with an opening for pulling the vessel ashore, T-shaped keel, 8 transverse bonds (including one frame with a keelson cut), 11 strakes of starboard side plating and five strakes of port side planting. The overlapping staves were connected by iron rivets with pads and sealed with sheep's hair. The transverse stiffening elements were connected to the keel by pins. The damage to the hull was repaired from the inside with slats pressed with iron clamps (type C2) and a woolen cloth soaked in tar or pitch. The stem was connected to the keel by a diagonal lock. The presence of a wreck from Scania in Gdańsk, along with other few boatbuilding monuments referring to the Scandinavian tradition, is an evidence of the contacts that took place in the second half of the 13th century and in the 14th century between the inhabitants of the Vistula River mouth and southern Scandinavia. Both vessels sank in the first half of the 14th century in the former Vistula riverbed. After the great flood in 1371, the old Vistula bed was used to create a wide moat, preceded in 1573 by a system of earthen embankments. It was probably during this period that the worn and abandoned wreck Wałowa 35.1 was nailed to the bottom by waterfront construction elements. The remains of the vessels discovered at ul. Wałowa 35, as well as the wrecks once discovered in Gdańsk, Orunia, Mechelinki and the medieval port in Puck, present an increasingly interesting and fuller database of medieval vessels sailing in the waters of the Gdańsk Bay. Diversified construction solutions observed in these wrecks are a valuable contribution to research not only on local boatbuilding, but also on cultural contacts in the Baltic Sea basin.