Results 61 to 70 of about 6,147 (304)

Adaptive Observer for Coupled Wave PDE and Infinite ODE With Sampled Data and Unknown Input: Application to Brain Hemodynamics Estimation

International Journal of Adaptive Control and Signal Processing, EarlyView.
This article proposes a convergent adaptive observer for a damped wave PDE and an infinite‐dimensional ODE coupled in cascade using sampled‐in‐space ODE state measurements. The proposed observer estimates the distributed states of the PDE and ODE along with unknown PDE parameters and spatial input.
Zehor Belkhatir, Sarah Mechhoud, Taous‐Meriem Laleg‐Kirati   +2 more
wiley   +1 more source

Experimental study on small strain dynamic characteristics of citric acid modified magnesium oxysulfate cement solidified engineering waste soil

Results in Engineering
To build an environmental protection society and improve the resource utilization rate of engineering residue, this paper uses magnesium oxysulfate cement instead of ordinary Portland cement solidified engineering residue, and use the additive citric ...
Na Li, Xinyu Yan, Yifang Song, Wei Wang, Ping Jiang, Xianwen Huang, Guoxiong Mei   +6 more
doaj   +1 more source

Assessing the liquefaction potential of a sand specimen by using resonant column test

, 2022
The liquefaction potential of soils is usually assessed based on cyclic simple/triaxial/torsional shear tests. These tests are generally associated with low frequency vibrations in a range of 0.5–10 Hz which are often induced by an earthquake.
Kumar, Jyant, Shinde, Ninad Sanjeev
core   +1 more source

Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization

Advanced Engineering Materials, EarlyView.
Magnetocaloric cooling (MCE) is an environmentally friendly refrigeration method with great potential. Optimizing MCE materials involves the preparation and screening of large quantities of samples, which in turn generates a large amount of data. A digitalization approach is presented that uses ontologies, knowledge graphs, and digital workflows to ...
Simon Bekemeier, Moritz Blum, Luana Caron, Alisa Chirkova, Philipp Cimiano, Basil Ell, Inga Ennen, Michael Feige, Maik Gaerner, Thomas Hilbig, Andreas Hütten, Günter Reiss, Tapas Samanta, Sonja Schöning, Christian Schröder, Lennart Schwan, Chris Taake, Martin Wortmann   +17 more
wiley   +1 more source

Characteristics of the Damping Ratio of Undisturbed Offshore Silty Clay in Eastern Guangdong, China

Applied Sciences
Soil–pile interaction damping plays a crucial role in reducing wind turbine loads and fatigue damage in monopile foundations, thus aiding in the optimized design of offshore wind structures and lowering construction and installation costs.
Peng Guo, Youhu Zhang, Qian Bi
doaj   +1 more source

Long-term dynamic behavior of monopile supported offshore wind turbines in sand

Theoretical and Applied Mechanics Letters, 2015
The complexity of the loads acting on the offshore wind turbines (OWTs) structures and the significance of investigation on structure dynamics are explained. Test results obtained from a scaled wind turbine model are also summarized.
Lu-Qing Yu, Li-Zhong Wang, Zhen Guo, S. Bhattacharya, G. Nikitas, Ling-Ling Li, Yue-Long Xing   +6 more
doaj   +1 more source

The influence of suction changes on the stiffness of railway formation

, 2011
Despite compacted soils being unsaturated, geotechnical design is predominantly based on saturated soils,despite it being known that differences exist between the behaviour of saturated and unsaturated soils.Suction in soils has been shown to increase ...
Otter, Louise
core  

From Shear to Sound: Mechanics–Acoustics Mapping of TPMS Lattices

Advanced Engineering Materials, EarlyView.
Triply periodic minimal surface (TPMS) lattices are mapped across mechanical and acoustic performance, revealing that descriptors validated in compression fail under shear. First‐time comparison with trusses included. A transition from porous to resonance‐driven absorption emerges at 25% density.
Lucía Doyle, María Ángeles Navacerrada, Johan Christensen, Carlos González   +3 more
wiley   +1 more source

Innovative Triaxial/Resonant Column Equipment

, 2010
The present paper describes a new triaxial apparatus which allows the measurement of low strain stiffness by means of both bender elements and resonant column test. In a previous paper Squeglia et al.
Lo Presti, Diego Carlo Federico, SQUEGLIA, NUNZIANTE, Pallara O., LO PRESTI, DIEGO CARLO, Pallara, Oronzo   +4 more
core  

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

Advanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite, Lilia Huynh, Natascha Gray, Quintin N. Meier, Marta D. Rossell, Morgan Trassin   +5 more
wiley   +1 more source