Results 41 to 50 of about 805,461 (159)

Research on Low-Frequency Swaying Mechanism of Metro Vehicles Based on Wheel-Rail Relationship

Shock and Vibration, 2020
For the worn state of the wheel, metro vehicles often suffer a serious carbody swaying issue, which causes the lateral stability of the vehicle to exceed the limit and affects the ride comfort.
Yixuan Shi, Huanyun Dai, Qunsheng Wang, Lai Wei, Huailong Shi   +4 more
doaj   +1 more source

Angle‐dependent X‐ray absorption correction in small‐ and wide‐angle X‐ray scattering: accounting for constrained scattering volume, beam profiles and capillary wall attenuation

Journal of Applied Crystallography, EarlyView.
We present an improved numerical angle‐dependent absorption correction procedure for line‐collimated small‐ and wide‐angle X‐ray scattering measurements in thin‐walled quartz capillaries. The procedure accounts for the constrained illuminated volume, measured primary beam profiles and capillary‐wall absorption, enabling physically consistent data ...
Jure Kovač, Andrej Jamnik, István Szilágyi, Matija Tomšič   +3 more
wiley   +1 more source

Non-linear dynamic techniques v. equivalent conicity methods for rail vehicle stability assessment

, 2004
This paper is to record a special discussion meeting held on 26 th August 2003 during the 18th IAVSD Symposium in Atsugi, Kanagawa, Japan, with the particular objective of answering the question "Should we use the term Equivalent Conicity?".
Iwnicki, Simon D., Goodall, Roger M.
core   +1 more source

Updated Chorotypes of Terrestrial Vertebrates Shed New Light on Zoogeographical Regions in China

Integrative Zoology, EarlyView.
Chorotype represents a fundamental concept for identifying groups of species that share similar distribution patterns. However, the last comprehensive revision of animal chorotypes in China was performed more than a decade ago. Here, we update the chorotype classifications for 1040 species and propose an updated zoogeographical regionalization scheme ...
Baoming Zhang, Minghui Zhou, Zhipeng Xie, Ludan Zhang, Haoting Duan, Jiehua Yu, Jiekun He   +6 more
wiley   +1 more source

Cut Points of the Conicity Index and Associated Factors in Brazilian Rural Workers [PDF]

, 2022
(1) Background: Metabolic syndrome is associated with cardiovascular complications. Therefore, this study aims to establish cut points for the conicity index based on the components of metabolic syndrome and to associate it with characteristic ...
Juliana Almeida-de-Souza, Olívia Maria de Paula Alves Bezerra, Júlia Rabelo Santos Ferreira, Maria de Paula Alves Bezerra, Olívia, Cattafesta, Monica, Camila Bruneli do Prado, Ana Clara Petersen Cremonini, Zandonade, Eliana, do Prado, Camila Bruneli, Ferreira, Júlia Rabelo Santos, Prado, Camila Bruneli do, Luciane Bresciani Salaroli, Cremonini, Ana Clara Petersen, Souza, Juliana Almeida de, Eliana Zandonade, Cleodice Alves Martins, Bezerra, Olívia Maria de Paula Alves, Martins, Cleodice Alves, Salaroli, Luciane Bresciani, Almeida-de-Souza, Juliana, Monica Cattafesta   +20 more
core   +1 more source

Wave Tracing: Generalizing The Path Integral To Wave Optics

Computer Graphics Forum, EarlyView.
Abstract Modeling the wave nature of light and the propagation and diffraction of electromagnetic fields is crucial for the accurate simulation of many phenomena, yet wave simulations are significantly more computationally complex than classical ray‐based models.
Shlomi Steinberg, Matt Pharr
wiley   +1 more source

Rational points on even‐dimensional Fermat cubics

Transactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.
Abstract We show that even‐dimensional Fermat cubic hypersurfaces are rational over any field of characteristic not equal to three, by constructing explicit rational parameterizations with polynomials of low degree. As a byproduct of our rationality constructions, we obtain estimates for the number of their rational points over a number field and ...
Alex Massarenti
wiley   +1 more source

A black-box dynamic equivalent model for microgrids using measurement data [PDF]

, 2014
A dynamic equivalent black-box model, based on Prony analysis is presented. The proposed model is suitable for dynamic studies of microgrids, considering changes in the active and reactive powers, bus voltages, currents and frequency. The developed model
Roscoe, Andrew, Burt, Graeme, Papagiannis, Grigoris, Crolla, Paul, Papadopoulos, Theofilos, Papadopoulos, Panagiotis   +5 more
core   +4 more sources

Algebraic Capsets

Journal of Combinatorial Designs, Volume 34, Issue 10, Page 459-463, October 2026.
ABSTRACT Capsets are subsets of F 3 n with no three points on a line, and a capset is complete if it is not a subset of a larger capset. We study some new constructions of capsets via algebraic equations over extensions of F 3. In particular we construct the smallest known complete capsets with size proportional to the best known lower bound.
Cassie Grace, José Felipe Voloch
wiley   +1 more source

CONICITY AND YIELD FOR LUMBER FROM COMMERCIAL SPECIES FROM THE AMAZON

, 2019
Stem conicity and the sawing pattern, besides the presence of hollows and sapwood, are among the principal factors that are responsible for the low yield of lumber from harvested wood in the Amazon.
Renato Bezerra da Silva-Ribeiro (8651958), Afonso Figueiredo Filho (4868935), Daniele Lima da Costa (8651955), Fabiane Aparecida de Souza Retslaff (6132488), João Ricardo Vasconcellos Gama (6097121), Misael Freitas dos Santos (8651952), Rafael Rode (4643572)   +6 more
core   +1 more source