Results 21 to 30 of about 4,479,240 (304)

Experimental and Numerical Investigation of the Added Resistance in Regular Head Waves for the DTC Hull

open access: yesJournal of Marine Science and Engineering, 2023
Reducing the added resistance in waves has become a crucial aspect of today’s ship design. The added resistance in waves is traditionally considered proportional to the square of wave height.
Ana-Maria Chirosca   +5 more
doaj   +1 more source

Study on the Added Resistance of Barge in Waves [PDF]

open access: yesJournal of Korean navigation and port research, 2010
선박이 파랑중을 항행할 경우에는 정수중에 비하여 저항이 증가하기 때문에 예부선의 안정성 확보를 위해 예선의 예인마력과 예인삭의 절단하중 등을 산정할 때에 부선의 정수중 저항값 및 파랑중 저항값을 정확히 추정해야 안전한 예항업무를 이행할 수 있다. 현재 정부에서 제안하고 있는 방법에 의하면 부선의 전저항 산정시 마찰저항, 조파저항, 공기저항은 선체의 형상 및 예선의 속력 등을 고려하여 산정하지만 부가저항은 유의파고에 따라 일률적으로 적용하고 있다.
Byung-Kil Ahn, Sang-Min Lee
openaire   +1 more source

Salvesen’s Method for Added Resistance Revisited [PDF]

open access: yesJournal of Offshore Mechanics and Arctic Engineering, 2021
Abstract Almost 4 years after the appearance of Salvesen–Tuck–Faltinsen (STF) strip theory (Salvesen et al., 1970, “Ship Motions and Sea Loads,” Annual Meeting of the Society of Naval Architecture and Marine Engineers (SNAME), New York, Nov.
openaire   +2 more sources

Method for rudder roll stabilization control by maintaining ship speed

open access: yesZhongguo Jianchuan Yanjiu, 2017
A ship navigating on the surface of the water may experience greater resistance, adversely affect-ing its speed and leading to energy loss. The added resistance of surface ships in both still water and waves are investigated, and the computation method ...
LIU Zhiquan, JIN Hongzhang
doaj   +1 more source

Prospects for exploitation of disease resistance from Hordeum chilense in cultivated cereals [PDF]

open access: yes, 2001
Hordeum chilense is a South American wild barley with high potential for cereal breeding given its high crossability with other members of the Triticeae. In the present paper we consider the resistance of H.
Rubiales, D.   +4 more
core   +1 more source

A study of “forced-ad resistance” leading to “Skip Ad” on YouTube

open access: yesTurkish Journal of Computer and Mathematics Education (TURCOMAT), 2021
The current policy of YouTube forces viewers to watch ads for at least 5 seconds before appearing “Skip Ad” button to continue watching the video. Recent studies show that a large percentage of watchers skip YouTube ads whenever possible but the factors behind such viewers behavior has not been analyzed so far.
openaire   +1 more source

Uncertainty Study of Added Resistance Experiment [PDF]

open access: yesJournal of the Society of Naval Architects of Korea, 2014
In this study, uncertainty analysis based on ITTC(International Towing Tank Conference) Recommended Procedures is carried out in the towing-tank experiment for motion responses and added resistance. The experiment was conducted for KVLCC2 model in head sea condition.
Dong-Min Park, Jaehoon Lee, Yonghwan Kim
openaire   +1 more source

Resistivity of polonium (Ad Interim) [PDF]

open access: yes, 1949
Apparatus for measuring the resistivity of polonium is described. This equipment has been built and tested. No resistivity measurements were made, however, because the method of determining the purity of the sample has not been perfected.
openaire   +2 more sources

Numerical study of Iran-Bushehr Container Ship motions and added resistance in regular head waves using STAR-CCM+

open access: yesنشریه مهندسی دریا, 2020
Nowadays, the optimal use of energy, speed increase, fuel consumption reduction and environmental pollution prevention are essential in the ship design and manufacturing discussion. So it is critical to be able to estimate ship's response to waves, since
Amirhossein Amiri   +3 more
doaj  

Application of the Design of Experiments and Computational Fluid Dynamics to Bow Design Improvement

open access: yesJournal of Marine Science and Engineering, 2019
Techniques of the design of experiments (DOE) and computational fluid dynamics (CFD) were applied for improving the bow shape of a tanker hull. Through this, a hull that could reduce the added resistance in waves was derived.
Woochan Seok   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy