Results 61 to 70 of about 674,520 (284)

Robust Tension Control of Strip for 5-Stand Tandem Cold Mills

Journal of Engineering, 2014
Tandem cold rolling process is a nonlinear complex system with external and internal uncertainties and significant disturbances. The improvement in the quality of the final output depends on the control strategy of centerline thickness and interstand ...
Behrooz Shafiei, Mohsen Ekramian, Khoshnam Shojaei   +2 more
doaj   +1 more source

Alberto Francescutto An Experimental Investigation of Parametric Rolling in Head Waves

, 2020
In this paper, the possibility of excitation of parametric rolling on a ship advancing in head sea condition is studied on an experimental ...
Dinma
core  

Bone‐Inspired Recyclable Composites for Damage‐Tolerant Circular Materials

Advanced Functional Materials, EarlyView.
Bone‐inspired architected composites are developed by combining osteon‐like reinforcements with a recyclable Elium thermoplastic matrix. The hierarchical architecture redirects cracks and promotes energy dissipation, while enabling recovery of intact, aligned, load‐bearing reinforcement units that retain their original stiffness, revealing a route ...
Alessandro Stagni, Nastaran Bahrami Novin, Luigi Benvenuto, Enrico Lertora, Flavia Libonati   +4 more
wiley   +1 more source

NUMERICAL MODELLING AND STUDY OF PARAMETRIC ROLLING FOR C11 CONTAINERSHIP IN REGULAR HEAD SEAS USING CONSISTENT STRIP THEORY

Brodogradnja, 2017
In this paper, a numerical model was proposed to simulate the parametric rolling of ships in head seas. The method was developed in time-domain based on strip theory, in which a consistent way of estimating the radiation forces was applied using impulse ...
Kaiye Hu, Rui Wang, Wenyang Duan, Wenhao Xu, Rui Deng, Shan Ma   +5 more
doaj   +1 more source

Advancing SafeWax, A Bio‐Inspired Superhydrophobic Coating, Toward Sustainable and Climate‐Resilient Crop Protection

Advanced Functional Materials, EarlyView.
This study advances SafeWax, a bio‐inspired, fatty‐acids‐based superhydrophobic coating, by identifying an agriculturally compliant solvent and revealing how solvent‐controlled Fatty acid crystallization governs the coating's microscopic structure and performance.
Niv Ben‐Arie, Iryna Polishchuk, Franziska Tauber, Coralie Schneider, Elena Prudnikov, Alessia Calora, Silvia Milita, Simona Fermani, Mireia Alejandra Ibanez Revert, Ilaria Filippetti, Claudio Ratti, Matthias Kellermeier, Markus Rueckel, Boaz Pokroy   +13 more
wiley   +1 more source

Development and validation of a fully coupled thermo-mechanical model for in-situ micro-rolling in laser-directed energy deposition: Single-track multi-layer case

Materials & Design
Directed Energy Deposition (DED) has recently been hybridised with in-situ rolling, providing elevated temperature deformations and enhancing build quality.
Ravi Raj, Louis Ngai Sum Chiu, Deepak Marla, Aijun Huang   +3 more
doaj   +1 more source

Residual-stress distribution in gear journal shafts induced by mechanical roll hardening [PDF]

Mechanical Sciences
Residual tensile stresses in the surface layer of machined 30CrMoA gear journal shafts readily promote fatigue crack initiation and degrade in-service reliability.
X. Zhang, X. Xia, X. Wang
doaj   +1 more source

On the direct stability assessment of parametric rolling with CFD : Preparation for the Second Generation Intact Stability Criteria [PDF]

, 2023
Parametric rolling is a phenomenon where a ship starts to uncontrollably oscillate with increasing amplitude. This is caused by the surrounding waves parametrically amplifying the naturally occurring small rolling motions. The phenomenon can be dangerous,
Kosonen, Severi
core  

Melanin's Role in Balancing Mechanical Strength and Reproductive Output in Environmentally Stressed Fungal Spores

Advanced Functional Materials, EarlyView.
Melanin content directly controls fungal spore mechanical properties, with pigmented spores achieving rupture forces two orders of magnitude higher than hyaline spores. Environmental stress drives this quantity‐quality tradeoff; stressed species invest energy in melanin‐reinforced, mechanically superior thick‐walled, super‐hydrophobic spores, while ...
Atul Agrawal, Steven E. Naleway
wiley   +1 more source

Second Generation IMO Intact Stability Vulnerability Criteria and its Application to ships Navigating in Persian Gulf and Oman Sea

International Journal of Maritime Technology, 2017
Second generation intact stability criteria for few past years had been under development by International Maritime Organization (IMO). Since the draft proposed amendments shall be amended to International code on Intact Stability (IS code 2008), new ...
Esmaeel Masoudi
doaj