Results 41 to 50 of about 166,742 (292)

Clustering Algorithm Reveals Dopamine‐Motor Mismatch in Cognitively Preserved Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore the relationship between dopaminergic denervation and motor impairment in two de novo Parkinson's disease (PD) cohorts. Methods n = 249 PD patients from Parkinson's Progression Markers Initiative (PPMI) and n = 84 from an external clinical cohort.
Rachele Malito, Chiara Meneghini, Alice Galli, Luca Gallo, Pierfrancesco Mitrotti, Paola Dimartino, Marianna Inglese, Cinzia Zatti, Alessandro Lupini, Andrea Pilotto, Alessandro Padovani, Micol Avenali, Enza Maria Valente, Cristina Tassorelli, Silvia P. Caminiti   +14 more
wiley   +1 more source

Quasi-Static Failure Criteria for Concrete / Quasi-Statyczne Kryteria Zniszczenia Betonu

Archives of Civil Engineering, 2010
W pracy prezentuje sie zachowanie betonu przy obciazeniach quasi-statycznych przy jednoosiowym sciskaniu i rozciaganiu oraz w płaskim stanie naprezenia.
Jankowiak T., Łodygowski T.
doaj   +1 more source

Parameterization and Reconstruction of Quasi Static Universe

, 2013
We study a possibility of the fate of universe, in which there is neither the rip singularity, which results in the disintegration of bound systems, nor the endless expansion, instead the universe will be quasi static.
A.A. Starobinsky, A.G. Riess, A.V. Astashenok, B. Feng, B. Feng, B. Ratra, C. Wetterich, D. Huterer, E. Elizalde, E. Komatsu, E.J. Copeland, E.J. Copeland, F. Piazza, G.W. Gibbons, H. Stefancic, H. Wei, H. Wei, I. Zlatev, I.H. Brevik, J. Zhang, J.D. Barrow, J.D. Barrow, J.S. Bagla, Jie Liu, K. Bamba, M.P. Dabrowski, P. Singh, P. Xi, P.G. Ferreira, P.G. Ferreira, P.H. Frampton, P.H. Frampton, P.H. Frampton, P.J. Steinhardt, R.R. Caldwell, R.R. Caldwell, S. Capozziello, S. Capozziello, S. Nojiri, S. Nojiri, S. Nojiri, S. Nojiri, S. Perlmutter, S. Tsujikawa, T. Nakamura, T. Padmanabhan, T.D. Saini, X. Zhang, X. Zhang, X. Zhang, Y. Shtanov, Y.F. Cai, Yun-Song Piao, Z.G. Liu, Z.K. Guo, Z.K. Guo, Z.K. Guo, Z.K. Guo   +57 more
core   +1 more source

Prediction of Surface Topography Parameters in Direct Laser Interference Patterning of Stainless Steel Using Infrared Monitoring and Convolutional Neural Networks

Advanced Engineering Materials, EarlyView.
This study presents an infrared monitoring approach for direct laser interference patterning (DLIP) combined with a convolutional neural network (CNN). Thermal emission data captured during structuring are used to predict surface topography parameters.
Lukas Olawsky, Marcelo Sallese, Leander Kläber, Clemens Kuhn, Keming Du, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Data characterizing compressive properties of Al/Al2O3 syntactic foam core metal matrix sandwich

Data in Brief, 2015
Microstructural observations and compressive property datasets of metal matrix syntactic foam core sandwich composite at quasi-static and high strain rate (HSR) conditions (525–845 s−1) are provided.
Mohammed Yaseer Omar, Chongchen Xiang, Nikhil Gupta, Oliver M. Strbik III, Kyu Cho   +4 more
doaj   +1 more source

Non-Quasi-Static Modeling of Printed OTFTs

IEEE Journal of the Electron Devices Society, 2023
A non-quasi-static compact model well suited for the simulation of the electrical behavior of printed organic thin-film transistors (OTFTs) is proposed and validated.
Antonio Valletta, Matteo Rapisarda, Mattia Scagliotti, Guglielmo Fortunato, Luigi Mariucci, Andrea Fabbri, Paolo Branchini, Sabrina Calvi   +7 more
doaj   +1 more source

Quasi-static cracks and minimal energy surfaces [PDF]

, 1998
We compare the roughness of minimal energy(ME) surfaces and scalar ``quasi-static'' fracture surfaces(SQF). Two dimensional ME and SQF surfaces have the same roughness scaling, w sim L^zeta (L is system size) with zeta = 2/3.
A. A. Middleton, A. Hansen, A. Hansen, A. Kelly, A. Omeltchenko, D. Fisher, E. Bouchard, E. T. Seppala, J. Kertesz, K. J. Måløy, M. J. Alava, M. J. Alava, M. Kardar, P. Daguier, P. M. Duxbury, P. M. Duxbury, S. J. Zhou, S. Ramanathan, T. Yamauchi, V. I. Räisänen, V. Y. Milman, V. Y. Milman, X. P. Xu   +22 more
core   +2 more sources

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Evolution of relativistic polytropes in the post--quasi--static regime [PDF]

, 2003
A recently presented method for the study of evolving self-gravitating relativistic spheres is applied to the description of the evolution of relativistic polytropes. Two different definitions of relativistic polytrope, yielding the same Newtonian limit,
Barreto, W., Herrera, L.
core   +2 more sources

Phenomenological and Physically Based Modeling of Flow Stress and Strengthening Mechanism of Inconel 718

Advanced Engineering Materials, EarlyView.
Nickel‐based alloys are widely used in high‐temperature applications due to their excellent mechanical strength and oxidation resistance. However, properties such as high‐temperature strength and pronounced work‐hardening make them difficult to machine.
Soheil Rooein, Oliver Schenk, Christoph Broeckmann   +2 more
wiley   +1 more source