Results 21 to 30 of about 463,519 (308)

Phytoplankton Growth and Productivity in the Western North Atlantic: Observations of Regional Variability From the NAAMES Field Campaigns

open access: yesFrontiers in Marine Science, 2020
The ability to quantify spatio-temporal variability in phytoplankton growth and productivity is essential to improving our understanding of global carbon dynamics and trophic energy flow.
James Fox   +11 more
doaj   +1 more source

New Supersonic Nozzle Test Rig Used to Generate Condensing Flow Test Data According to Barschdorff

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2023
Considerable progress has been achieved in recent decades in understanding the phenomena related to the onset of condensation in steam flows, both experimentally and especially numerically.
Manuel Ernesto Maqueo Martínez   +3 more
doaj   +1 more source

Optical Vortices shape Optical Tornados

open access: yesOptics Express, 2023
We demonstrate that by seeding an accelerating ring-Airy beam with a finite number of off-axis optical vortices, it transforms into a Tornado wave (ToW) upon propagation. Using numerical simulations, we show that both the spiraling high-intensity lobes and the optical vortices exhibit angular acceleration and follow interwinding braid-like trajectories.
Apostolos Brimis   +2 more
openaire   +2 more sources

The Influence of Causal Thinking with Scaffolding Type 2A and 2B on Optics Problem-Solving Ability

open access: yesJurnal Pendidikan Fisika Indonesia, 2018
The effectiveness of learning is affected by the assistance stages (scaffolding) provided. For example, the scaffolding of type 2a and type 2b supports the causal-thinking approach in learning.
N. Nurmadiah, J. Rokhmat, S. Ayub
doaj   +1 more source

Photobiological Effects on Ice Algae of a Rapid Whole-Fjord Loss of Snow Cover during Spring Growth in Kangerlussuaq, a West Greenland Fjord

open access: yesJournal of Marine Science and Engineering, 2021
Snow cover on sea ice is the most important factor controlling light availability for sea ice algae, but it is predicted by climate models to become more variable and stochastic.
Brian K. Sorrell   +3 more
doaj   +1 more source

Chirality in Nonlinear Optics and Optical Switching [PDF]

open access: yesMolecular Crystals and Liquid Crystals, 1993
Chirality in molecular opto-electronics is limited sofar to the use of optically active liquid crystals and a number of optical phenomena are related to the helical macroscopic structure obtained by using one enantiomer, only. In this paper, the use of chirality in nonlinear optics and optical switching is demonstrated.
Meijer, E.W., Feringa, B.L.
openaire   +3 more sources

Simulation Study of Vertical p–n Junction Photodiodes’ Optical Performance According to CMOS Technology

open access: yesApplied Sciences, 2022
CMOS photodiodes have been widely reported in microsystem applications. This article presents the design and numerical simulation of p–n junction photodiodes, using COMSOL Multiphysics, for three CMOS technologies (0.18 μm, 0.35 μm and 0.7 μm) and three ...
Gabriel M. Ferreira   +3 more
doaj   +1 more source

Manganese(II) Bromide Compound with Diprotonated 1-Hydroxy-2-(pyridin-2-yl)-4,5,6,7-tetrahydrobenzimidazole: Dual Emission and the Effect of Proton Transfers

open access: yesInorganics, 2022
An organic–inorganic cation–anion manganese(II) tetrabromide compound with diprotonated 1-hydroxy-2-(pyridin-2-yl)-4,5,6,7-tetrahydrobenzimidazole, [H3L][MnBr4][H2O], has been synthesized and investigated.
Alexey S. Berezin   +4 more
doaj   +1 more source

Simulations for the Locking and Alignment Strategy of the DRMI Configuration of the Advanced Virgo Plus Detector

open access: yesGalaxies, 2022
The Advanced Virgo Plus project aims to increase the sensitivity of the Virgo gravitational-wave detector, given the forthcoming O4 Observing Run. One of the major upgrades is the addition of the Signal Recycling Mirror in the optical layout.
Diego Bersanetti   +6 more
doaj   +1 more source

Butterfly Optics Exceed the Theoretical Limits of Conventional Apposition Eyes [PDF]

open access: yes, 1987
Optical experiments on butterfly compound eyes show that they have angular sensitivities narrower than expected from conventional apposition eyes. This superior performance is explained by a theoretical model where the cone stalk is considered as a ...
Nilsson, D.-E.,   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy