Results 71 to 80 of about 114,389,400 (308)

Numerical Study of a Model and Full-Scale Container Ship Sailing in Regular Head Waves

Inventions
In the present study, the added resistance, heave, and pitch of the KRISO Container Ship (KCS) in waves, at both model scale and full scale, are predicted numerically in regular head waves, for four wavelengths and three wave heights.
Andreea Mandru, Liliana Rusu, Adham Bekhit, Florin Pacuraru   +3 more
doaj   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

A numerical investigation on the nominal wake of KVLCC2 model ship in regular head waves

International Journal of Naval Architecture and Ocean Engineering, 2020
Analysis: of the propulsion performance considering ship motion in waves is an important factor for the efficient operation of a ship. The interaction between the propeller and the free surface due to the ship motion in waves has a significant influence ...
Hyun-Woo Shin, Kwang-Jun Paik, Yoon-Ho Jang, Myeoung-Jin Eom, Sungwook Lee   +4 more
doaj   +1 more source

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

Advanced Engineering Materials, EarlyView.
Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran, Vincent Nebel, Dominik Perius, Kshitij Kumar, Yannis Heim, Laura Bies, Tobias Kraus   +6 more
wiley   +1 more source

A RANS Modelling Approach for Predicting Powering Performance of Ships in Waves [PDF]

, 2013
In this paper, a modelling technique for simulating selfpropelled ships in waves is presented. The flow is modelledusing a RANS solver coupled with an actuator diskmodel for the propeller.
Hudson, Dominic, Winden, Bjorn, Turnock, Stephen, Björn Windén, Stephen Turnock, Dominic Hudson, Hudson, Dominic A., Turnock, S.R.   +7 more
core   +1 more source

Uniform Amorphization of Crystalline Silicon Surfaces Enabled by Deep Ultraviolet Femtosecond Laser Pulses

Advanced Engineering Materials, EarlyView.
Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali, Magali Gregoire, Matys Guyard, Tatiana Itina, David Grojo, Pol Sopeña   +5 more
wiley   +1 more source

The impact of variation in added resistance computations on voyage performance prediction

, 2020
Prediction of added resistance of a ship in waves is essential to evaluate vessel performance in a seaway. Also, added resistance in waves increases the fuel consumption. Today different methods are used to predict the added resistance of a ship in waves.
Andersen, Poul, Bhushan Taskar, Taskar, Bhushan, Pelle Bo Regener, Poul Andersen, Regener, Pelle Bo   +5 more
core   +1 more source

Keel Influence on the Added Wave Resistance for Yachts

Journal of the Society of Naval Architects of Japan, 1999
Sailing yachts has been experienced extensively in the past years, generating very fast yachts. However, the search for speed has lead to very similar boats, with similar performance and, frequently, with poor behavior in rough water. The study of performance of sailing yacht in waves, experienced in heeled and yawed condition has been conducted, as ...
Campos, Marcos de Parahyba, Hirayama, Tsugukiyo   +1 more
openaire   +2 more sources

Superlubricity and Corrosion Inhibition Properties of Solvate Ionic Liquids in Hybrid Carbon Fiber Reinforced Plastic–Steel Interfaces

Advanced Engineering Materials, EarlyView.
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees, Timothy Harte, Bhagya Dharmasiri, Y. Athulya Wickramasingha, David J. Hayne, Daniel J. Eyckens, Luke C. Henderson   +6 more
wiley   +1 more source

Estimation of Added Resistance in Waves in a Ballasted Condition

Journal of the Japan Society of Naval Architects and Ocean Engineers, 2010
As for bulk carriers and tankers it is important to calculate added resistance in waves in a ballasted condition with accuracy,because they are operated in ballasted conditions for half of their operation time. However, it is difficult to estimate the resistance with accuracy by the numerical calculation since wave making phenomena in a ballasted ...
Ichinose, Yasuo, Tsujimoto, Masaru, Naoto, Sogihara, Shibata, Kazuya, Takagi, Ken   +4 more
openaire   +2 more sources