Zobrazeno 1 - 10
of 1 042
pro vyhledávání: '"Spatial density"'
Publikováno v:
Results in Physics, Vol 58, Iss , Pp 107450- (2024)
The purpose of this paper is to derive the photon spin and to deduce its properties from a pair of spinor quantum equations for the photon. It is argued that the notion of spatial density for the photon spin in the quantum-mechanical sense is physica
Externí odkaz:
https://doaj.org/article/38c4d27efb8e47a8bab8f0f3279fc694
Publikováno v:
Cogent Engineering, Vol 10, Iss 1 (2023)
AbstractSmart cards, integrated circuit cards, are frequently used to pay transportation fees in many countries such as the United States, the European Union, Korea and others. Smart card transaction histories in public transportation have been used
Externí odkaz:
https://doaj.org/article/222775e572d44fc28872b8a7c4dc5806
Autor:
N. A. Kuznetsova, M. A. Shebanova
Publikováno v:
Известия ТИНРО, Vol 203, Iss 1, Pp 179-199 (2023)
Data on feeding of walleye pollock Gadus chalcogrammus (3–70 cm long) in the Chukchi Sea in summer-autumn of 2017–2020 are presented. The food base includes zooplankton, benthic invertebrates and fish. The juveniles in the northwestern part of th
Externí odkaz:
https://doaj.org/article/8b278b005108422d8447705eb913bd9e
Publikováno v:
IEEE Access, Vol 11, Pp 82232-82238 (2023)
We present a novel Z-trench-assisted (Z-TA) graded index 9-LP-mode fiber that significantly suppresses the maximum absolute differential modal group delay (Max $\vert $ DMGD $\vert$ ) while obtaining a high normalized spatial density (NSD). The finit
Externí odkaz:
https://doaj.org/article/cc63ea549edf4ccaa045b588d7e3fc48
Autor:
Andrea Verolino, Susanna F. Jenkins, Kerry Sieh, Jason S. Herrin, Dayana Schonwalder-Angel, Vanpheng Sihavong, Jee Hon Oh
Publikováno v:
Journal of Applied Volcanology, Vol 11, Iss 1, Pp 1-25 (2022)
Abstract Southeast Asia is home to a large number of active and well-studied volcanoes, the majority of which are located in Indonesia and the Philippines. Northern Southeast Asia (Myanmar, Cambodia, Laos, Thailand and Vietnam) also hosts volcanoes t
Externí odkaz:
https://doaj.org/article/68d7f7c54d8147bfbf4b4c58c7dd4096
Publikováno v:
地质科技通报, Vol 41, Iss 2, Pp 44-59 (2022)
For linear environmental factors such as river, road and geological fault networks, buffer analysis in GIS is commonly used to extract the buffer distances to the river and/or road networks. However, the line distances are discrete variables with ran
Externí odkaz:
https://doaj.org/article/71004584509f40df8385c65b4a1ecd65
Autor:
Yunfei Wang, Shuangxi Liu, Zhuo Ren, Bo Ma, Junlin Mu, Linlin Sun, Hongjian Zhang, Jinxing Wang
Publikováno v:
Agronomy, Vol 13, Iss 11, p 2806 (2023)
The segmentation of individual pests is a prerequisite for pest feature extraction and identification. To address the issue of pest adhesion in the apple orchard pest identification process, this research proposed a pest adhesion image segmentation m
Externí odkaz:
https://doaj.org/article/a249395337464dfda5a0b7f6fe5ec718
Publikováno v:
IEEE Access, Vol 10, Pp 134263-134276 (2022)
Fusing features from different layers is essential to improve the ship target detection ability in the synthetic aperture radar (SAR) images. Mainstream methods usually perform simple addition or concatenation operations on adjacent feature layers wi
Externí odkaz:
https://doaj.org/article/a157a646228e4700929255586673027f
Autor:
Crescent Jicol, Gerald Taulo, Cora Goldie, Tayfun Lloyd-Esenkaya, Ruth Hynes, Caroline Paradise, Michael J. Proulx, Alexandra A. de Sousa
Publikováno v:
Frontiers in Computer Science, Vol 5 (2023)
Here we sought to understand how perceived personal space is influenced by a number of variables that could influence Indoor Environmental Quality (IEQ); specifically, we tested how different levels of social density, spatial density, noise presence,
Externí odkaz:
https://doaj.org/article/5ece01c9db114c4f916e69e956bc720a
Autor:
Elisabeth Gallant, Lawrence Cole, Chales Connor, Amy Donovan, Danielle Molisee, Julie Morin, Rory Walshe, Paul Wetmore
Publikováno v:
Volcanica, Vol 4, Iss 2, Pp 325-343 (2021)
Vent opening hazard models are routinely used as inputs for assessing distal volcanic hazards (lava flows, tephra fallout) in distributed volcanic fields. These vent opening hazard models have traditionally relied on the location of mapped vents; sel
Externí odkaz:
https://doaj.org/article/35c8972f20f9490996abc6c7936c1455