Results 81 to 90 of about 25,531 (223)

Propagation Properties of the COAM Matrix of Twisted Gaussian Schell-Model Beams in Non-Kolmogorov Turbulence

Photonics
Based on the extended Huygens–Fresnel principle and mode expansion theory, we derive the expression for the Coherence-Orbital Angular Momentum (COAM) matrix of twisted Gaussian Schell-model (TGSM) beams propagating through non-Kolmogorov turbulence ...
Jie Miao, Jing Wang, Xianmei Qian, Wenyue Zhu, Yongtao Zhang, Jinhong Li   +5 more
doaj   +1 more source

Market‐Driving Capability: An Empirical Study on Antecedents and Consequences

British Journal of Management, EarlyView.
Abstract What enables market‐driving behaviour, and is it a worthwhile business strategy? This fundamental question intrigues both managers in firms and researchers in marketing and strategic management, yet surprisingly, it remains underexplored. To this end, we assess the antecedents and consequences of market‐driving capability.
Owais Khan, Andreas Hinterhuber, Anthony Di Benedetto   +2 more
wiley   +1 more source

Optical Communication Performance of Cylindrical Vector Partially Coherent Laguerre–Gaussian Beams in Atmospheric Turbulence

Photonics
The optical communication performance of cylindrical vector partially coherent Laguerre–Gaussian (PCLG) beams in different atmospheric turbulence models are investigated.
Meng Liu, Linxuan Yao, Yaru Gao, Hui Zhang, Yangsheng Yuan, Bohan Guo, Huimin Shi   +6 more
doaj   +1 more source

XY model for cascade transfer

Physical Review Research, 2022
We propose a modified XY model in which cascade transfer emerges from spatially local interactions where the spin corresponds to the “velocity” of a turbulent field.
Tomohiro Tanogami, Shin-ichi Sasa
doaj   +1 more source

Equivalent refractive-index structure constant of non-Kolmogorov turbulence

Optics Express, 2015
The relationship between the non-Kolmogorov refractive-index structure constant and the Kolmogorov refractive-index structure constant is derived by using the refractive-index structure function and the variance of refractive-index fluctuations. It shows that the non-Kolmogorov structure constant is proportional to the Kolmogorov structure constant and
Yujie, Li, Wenyue, Zhu, Xiaoqing, Wu, Ruizhong, Rao   +3 more
openaire   +2 more sources

Points vs. passes: A comparison between electric fishing techniques for sampling fish populations in upland headwater streams

Journal of Fish Biology, EarlyView.
Abstract Point‐abundance sampling by electric fishing (PASE) was compared with single‐pass (DF1) and triple‐pass depletion sampling (DF3) electric fishing on the same reaches of four headwater streams sampled over multiple years in the Ribble catchment, UK. Juvenile salmonids, mostly brown trout Salmo trutta with some Atlantic salmon S.
Reagan H. Pearce, Martin R. Perrow, Mark L. Tomlinson, Kirsty A. Turner   +3 more
wiley   +1 more source

Two-dimensional magnetohydrodynamic turbulence in the limits of infinite and vanishing magnetic Prandtl number [PDF]

, 2013
LAKB was supported by an EPSRC post-graduate studentship.We study both theoretically and numerically two-dimensional magnetohydrodynamic turbulence at infinite and zero magnetic Prandtl number $Pm$ (and the limits thereof), with an emphasis on solution ...
Tran, Chuong Van, Yu, Xinwei, Blackbourn, Luke Austen Kazimierz   +2 more
core   +1 more source

Propagation of elegant Laguerre–Gaussian beam in non-Kolmogorov turbulence

Optics Express, 2011
The analytical formulas for the average intensity and the beam width of the elegant Laguerre-Gaussian beam (ELGB) in non-Kolmogorov turbulence have been derived based on the extended Huygens-Fresnel principle. Numerical results reveal that the ELGB converts to Gaussian form quicker for smaller values of beam order and for smaller wavelengths.
Huafeng, Xu, Zhifeng, Cui, Jun, Qu
openaire   +2 more sources

Which attributes of restored oyster reefs provide the best habitat for sportfish?

Restoration Ecology, EarlyView.
Abstract Introduction Restoration practitioners seek to restore oyster ecosystems as habitat designed for species targeted by recreational fisheries, but they require information on which specific habitat parameters of oyster reefs are preferred by fish.
Matthew S. Kendall, Brianna V. Cahill, Laughlin Siceloff, Victoria M. Congdon, Christopher Biggs, Katie M. Swanson, Terry A. Palmer   +6 more
wiley   +1 more source

Developments in turbulence research: a review based on the 1999 Programme of the Isaac Newton Institute, Cambridge [PDF]

, 2001
Recent research is making progress in framing more precisely the basic dynamical and statistical questions about turbulence and in answering them.
Vassilicos, J. C., Hunt, J.C.R., Launder, B.E., Vassilicos, J.C.V., Hunt, J. C R, Hewitt, G.F., Hewitt, G. F., Launder, B. E., Sandham, N.D., Sandham, N. D., Monkewitz, P.A., Monkewitz, P. A.   +11 more
core   +1 more source