Results 21 to 30 of about 82,902 (182)

Key Challenges and Opportunities in Hull Form Design Optimisation for Marine and Offshore Applications [PDF]

open access: yes, 2015
New environmental regulations and volatile fuel prices have resulted in an ever-increasing need for reduction in carbon emission and fuel consumption.
Ang, J.H., Goh, C., Li, Y.
core   +1 more source

Matrix Convex Hulls of Free Semialgebraic Sets [PDF]

open access: yes, 2013
This article resides in the realm of the noncommutative (free) analog of real algebraic geometry - the study of polynomial inequalities and equations over the real numbers - with a focus on matrix convex sets $C$ and their projections $\hat C$.
Helton, J. William   +2 more
core   +1 more source

Optimization of Catamaran Demihull Form in Early Stages of the Design Process [PDF]

open access: yes, 2014
The amounts of research about catamaran have generated a practical formula to simplify the calculations of catamaran resistance. Ship designer will calculate the predictions of catamaran resistance rapidly.
Iqbal, M. (Muhammad)   +1 more
core   +2 more sources

Hydrodynamic Hull Form Design Using an Optimization Technique [PDF]

open access: yesInternational Journal of Ocean System Engineering, 2013
Abstract A design procedure for a ship with minimum resistance had been developed using a numerical op-timization method called SQP (Sequential Quadratic Programming) combined with computational fluid dynamics (CFD) technique. The frictional resistance coefficient was estimated by the ITTC 1957 model-ship correlation line formula and the wave-making ...
Dong-Woo Park, Hee-Jong Choi
openaire   +1 more source

Semidefinite descriptions of the convex hull of rotation matrices [PDF]

open access: yes, 2014
We study the convex hull of $SO(n)$, thought of as the set of $n\times n$ orthogonal matrices with unit determinant, from the point of view of semidefinite programming. We show that the convex hull of $SO(n)$ is doubly spectrahedral, i.e. both it and its
Parrilo, Pablo A.   +2 more
core   +1 more source

Energy efficiency parametric design tool in the framework of holistic ship design optimization [PDF]

open access: yes, 2011
Recent International Maritime Organization (IMO) decisions with respect to measures to reduce the emissions from maritime greenhouse gases (GHGs) suggest that the collaboration of all major stakeholders of shipbuilding and ship operations is required to ...
A D Papanikolaou   +20 more
core   +1 more source

Numerical and Experimental Optimization Study on a Fast, Zero Emission Catamaran

open access: yesJournal of Marine Science and Engineering, 2020
The present study focuses on the hydrodynamic hull form optimization of a zero emission, battery driven, fast catamaran vessel. A two-stage optimization procedure was implemented to identify in the first stage (global optimization) the optimum ...
Apostolos Papanikolaou   +5 more
doaj   +1 more source

Lines optimization of 210 000 DWT bulk carrier based on resistance and wake non-uniformity

open access: yesZhongguo Jianchuan Yanjiu
ObjectivesThis study calculates and analyzes the flow field around the hull of a 210 000 DWT bulk carrier in order to perform hull line optimization with resistance and wake non-uniformity as the optimization objectives.
Baoguo CHENG, Jinfeng HAO, Zhaoxin QIANG
doaj   +1 more source

Optimal relay location and power allocation for low SNR broadcast relay channels [PDF]

open access: yes, 2011
We consider the broadcast relay channel (BRC), where a single source transmits to multiple destinations with the help of a relay, in the limit of a large bandwidth.
Fawaz, Nadia   +2 more
core   +2 more sources

Optimization Approach for a Catamaran Hull Using CAESES and STAR-CCM+

open access: yes한국해양공학회지, 2020
This paper presents an optimization process for a catamaran hull form. The entire optimization process was managed using the CAD-CFD integration platform CAESES.
Zhang Yongxing, Dong-Joon Kim
doaj   +1 more source

Home - About - Disclaimer - Privacy