Results 61 to 70 of about 4,813,044 (315)

Simple pendulum in a rotating reference frame

Revista Brasileira de Ensino de Física
Describing the harmonic motion of a simple pendulum observed from a rotating reference frame necessitates solving the differential equations governing three-dimensional motion in a non-inertial reference frame, which can be a challenging endeavor for ...
David Velasco Villamizar
doaj   +1 more source

Comparison of two different methods of preoperative marking for toric intraocular lens implantation: bubble marker versus pendulum marker [PDF]

International Journal of Ophthalmology, 2016
AIM: To compare the accuracy of two different methods of preoperative marking for toric intraocular lens (IOL) implantation, bubble marker versus pendulum marker, as a means of establishing the reference point for the final alignment of the toric IOL to ...
Javed Hussain Farooqui, Archana Koul, Ranjan Dutta, Noshir Minoo Shroff   +3 more
doaj   +1 more source

Light‑Driven Propulsion of Graphene Aerogels in Microgravity

Advanced Science, EarlyView.
Ultralight graphene aerogels convert laser light into thrust. Parabolic‐flight experiments directly compare their motion in microgravity and at 1 g, revealing order‐of‐magnitude enhancements in distance, velocity, and transient thrust when weight and friction are removed (∼50 times enhancement).
Omnia Khattab, Rami Elkaffas, Basel Altawil, Omar Alsuwaidi, Afnan Almubashir, Claire Perfetti, Shanavas Shajahan, Marco Braibanti, Sean Swei, Carlo Saverio Iorio, Yarjan Abdul Samad   +10 more
wiley   +1 more source

Dynamics of Simple Balancing Models with State Dependent Switching Control

, 2011
Time-delayed control in a balancing problem may be a nonsmooth function for a variety of reasons. In this paper we study a simple model of the control of an inverted pendulum by either a connected movable cart or an applied torque for which the control ...
A. Colombo, A.F. Filippov, A.F. Filippov, B.L. Day, C.W. Eurich, D. J. W. Simpson, D. Liberzon, E. Freire, F. Bullo, G. Stèpàn, G. Stèpàn, G. Stèpàn, H. Lin, H. Wang, I.D. Loram, I.D. Loram, I.D. Loram, J. Milton, J. Milton, J. Sieber, J. Sieber, J. Sieber, J. Sieber, J. Sieber, J.G. Milton, J.G. Milton, J.K. Hale, J.L. Cabrera, J.L. Cabrera, K. Masani, L.E. Kollár, M. Bernardo di, M. Casadio, M. Landry, O. Diekmann, P. Glendinning, R. Casey, R. Kuske, R.I. Leine, R.V. Dukkipati, S.A. Campbell, S.A. Campbell, T. Bajd, T. Bräunl, T. Erneux, T. Insperger, V. Carmona, Y. Asai, Y. Iwatani, Y.-X. Li   +49 more
core   +1 more source

Predicting Performance of Hall Effect Ion Source Using Machine Learning

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This study introduces HallNN, a machine learning tool for predicting Hall effect ion source performance using a neural network ensemble trained on data generated from numerical simulations. HallNN provides faster and more accurate predictions than numerical methods and traditional scaling laws, making it valuable for designing and optimizing Hall ...
Jaehong Park, Guentae Doh, Dongho Lee, Youngho Kim, Changmin Shin, Su‐Jin Shin, Young‐Chul Ghim, Sanghoo Park, Wonho Choe   +8 more
wiley   +1 more source

Kajian Fisis pada Gerak Osilasi Harmonis

JPPPF: Jurnal Penelitian & Pengembangan Pendidikan Fisika, 2015
This article explain the study on a simple harmonic oscillation. The study was conducted through laboratory experiments on simple oscillatory motion on the system as well as the physical pendulum spring-mass system, using experimental tools JEULIN device
Esmar Budi
doaj   +1 more source

Path Integral Approach to 't Hooft's Derivation of Quantum from Classical Physics

, 2004
We present a path-integral formulation of 't Hooft's derivation of quantum from classical physics. The crucial ingredient of this formulation is Gozzi et al.'s supersymmetric path integral of classical mechanics.
A. L. Fetter, D. Bohm, D. M. Gitman, D. Ruelle, E. Madelung, E. Nelson, E. Nelson, E. S. Fradkin, F. C. Hoppensteadt, G. Jona Lasinio, G. Parisi, G. ’t Hooft, G. ’t Hooft, H. Kleinert, H. Nicolai, Hagen Kleinert, I. A. Batalin, J. Zinn-Justin, K. Sundermeyer, L. D. Faddeev, L. D. Faddeev, L. P. Kadanoff, L. S. Schulman, L. van Hove, M. Blasone, M. Blasone, Massimo Blasone, P. A. M. Dirac, P. M. Morse, Petr Jizba, R. Rivers, S. I. Muslih, S. P. Gavrilov, S. P. Gavrilov, T. S. Biró, Z. Bern   +35 more
core   +3 more sources

A study of conceptions of preservice physics teachers in relation to the simple pendulum

The Physical Educator, 2018
There is a huge body of research supporting a positive correlation between teachers’ content knowledge and better pedagogical practice. In this context, this study revealed serious gaps in a cohort of preservice physics teachers’ understanding of the ...
Ketan Dandare
semanticscholar   +1 more source

A compatibility criterion for optimal control and information aggregation in hierarchical network systems

Asian Journal of Control, EarlyView.
Abstract Large swarms often adopt a hierarchical network structure that incorporates information aggregation. Although this approach offers significant advantages in terms of communication efficiency and computational complexity, it can also lead to degradation due to information constraints.
Kento Fujita, Daisuke Tsubakino
wiley   +1 more source

The Impact of Pictorial Display on Operator Learning and Performance [PDF]

, 1984
The effects of pictorially displayed information on human learning and performance of a simple control task were investigated. The controlled system was a harmonic oscillator and the system response was displayed to subjects as either an animated ...
Jagacinski, R. J., Messing, L. J., Miller, R. A.   +2 more
core   +1 more source