Results 21 to 30 of about 616,807 (289)

The Utilization of Virtual Laboratory in Learning: A Meta-Analysis

Indonesian Journal of Science and Mathematics Education, 2020
This study aimed to analyze the use of technology in the form of virtual laboratories in learning, including: (1) problems that cause the use of virtual laboratories in learning, (2) variables that are influenced by the use of virtual laboratories in ...
Zaturrahmi Zaturrahmi, Festiyed Festiyed, Ellizar Ellizar   +2 more
doaj   +1 more source

Identification of plastic constitutive parameters at large deformations from three dimensional displacement fields [PDF]

, 2012
The aim of this paper is to provide a general procedure to extract the constitutive parameters of a plasticity model starting from displacement measurements and using the Virtual Fields Method.
A Bertram, A Germaneau, A Gorry, A Savitzky, AJ Romano, AJ Romano, AP Karafillis, B Plunkett, BK Bay, C Franck, D Banabic, D Mohr, E Verhulp, F Barlat, F Barlat, F Latourte, F Pierron, F Pierron, FA Nichols, Fabrice Pierron, G Dhondt, G Losilla, GZ Voyiadjis, H Tao, H Vegter, HP Feigenbaum, J Kajberg, KS Zhang, M Brunet, M Darrieulat, M Gates, M Grédiac, M Grédiac, M Rossi, Marco Rossi, MHH Meuwissen, N Tvergaard, O Cazacu, OC Zienkiewicz, R Fletcher, R Hill, R Hill, R Mahnken, S Atay, S Avril, S Avril, S Avril, S Avril, S Avril, S Cooreman, S Roux, T Guélon, T Wierzbicki, TS Smith, V Laws, WT Lankford, Y Bai, Y Hwang, Y Ling, YM Hwang   +59 more
core   +5 more sources

Reconstruction of 3D digital heritage objects for VR and AR applications

Journal of Information and Telecommunication, 2021
Constructing the 3D objects based on geometric modelling and graphical techniques is a well-known research activity applied in computer graphics. Techniques to process graphical models are widely used in the field of digital heritage and 3D game. Virtual
Sinh Van Nguyen, Son Thanh Le, Minh Khai Tran, Ha Manh Tran   +3 more
doaj   +1 more source

Determination of Local Constitutive Properties of Aluminum using Digital Image Correlation: A Comparative Study Between Uniform Stress and Virtual Fields [PDF]

International Journal of Advanced Design and Manufacturing Technology, 2019
A proper understanding of material mechanical properties is important in designing and modelling of components. As a part of a study on the structural integrity, the Digital Image Correlation technique was used to obtain the full-field strain ...
Ali Shahmirzaloo, Mohammadreza Farahani
doaj  

Method for virtual optical sectioning and tomography utilizing shallow depth of field

Journal of the Optical Society of America A, 2022
A method is proposed for high-resolution, three-dimensional reconstruction of internal structures of objects from planar transmission images. The described approach can be used with any form of radiation or matter waves, in principle, provided that the depth of field is smaller than the thickness of the sample.
Timur E. Gureyev, Harry M. Quiney, Leslie J. Allen   +2 more
openaire   +3 more sources

Probing vacuum birefringence by phase-contrast Fourier imaging under fields of high-intensity lasers

, 2011
In vacuum high-intensity lasers can cause photon-photon interaction via the process of virtual vacuum polarization which may be measured by the phase velocity shift of photons across intense fields.
A. Piazza Di, A. Yariv, A.E. Siegman, A.N. Luiten, B. King, B. Marx, B. Tollis De, B. Tollis De, C. Amsler, D. Habs, E. Zavattini, G.M. Shore, G.V. Dunne, J. Schwinger, J.M. Maldacena, J.W. Goodman, K. Homma, N.B. Narozhny, N.B. Narozhnyi, N.B. Norozhny, O. Aharony, R. Karplus, R. Schützhold, T. Heinzl, T. Tajima, V. Weisskopf, V.I. Ritus, V.N. Baier, W. Dittrich, W. Heisenberg   +29 more
core   +1 more source

The Virtual Fields Method for Extracting Constitutive Parameters From Full-Field Measurements: a Review [PDF]

Strain, 2006
ABSTRACT:The virtual fields method has been developed for extracting constitutive parameters from full‐field measurements provided by optical non‐contact techniques for instance. It is based on the principle of virtual work written with some particular virtual fields.
Grédiac, M., Pierron, F., Avril, S., Toussaint, Evelyne   +3 more
openaire   +2 more sources

Local mechanical characterization of cardiovascular tissues: methods, challenges, and pathways to clinical use

Frontiers in Mechanical Engineering
Cardiovascular tissues exhibit complex mechanical behaviors that are nonlinear, anisotropic, and spatially heterogeneous. These local and regional variations play a critical role in disease initiation, progression, and treatment outcomes, yet ...
Dong Qiu, Dar Weiss
doaj   +1 more source

The dynamic Virtual Fields Method on rubbers at medium and high strain rates

EPJ Web of Conferences, 2015
Elastomeric materials are widely used for energy absorption applications, often experiencing high strain rate deformations. The mechanical characterization of rubbers at high strain rates presents several experimental difficulties, especially associated ...
Yoon Sung-Ho, Siviour Clive R.
doaj   +1 more source

Dipole scattering in polarization induced two-dimensional electron gases

, 2000
Unusually large spontaneous and piezoelectric fields in the III-V nitrides have led to the making of an entirely new class of two-dimensional electron gas.
Gossard, Arthur. C., Jena, Debdeep, Mishra, Umesh. K.   +2 more
core   +1 more source