Results 91 to 100 of about 79,741 (214)

An investigation of arc discharging on negatively biased dielectric conductor samples in a plasma [PDF]

open access: yes, 1985
Proposals are now being developed for the construction of high-power photovoltaic systems for operation in low Earth orbit, where the plasma number density is about 1,000 to 1,000,000 per cubic cm.
Miller, W. L.
core   +1 more source

Internal structure of nanoparticles of Al generated by laser ablation in liquid ethanol

open access: yes, 2010
Al NPs are synthesized by laser ablation of a bulk Al target immersed into liquid ethanol saturated with hydrogen at atmospheric pressure. The nanoparticles possess a well-distinguished core-shell structure.
Adachi   +17 more
core   +1 more source

Dust and gas jets: Evidence for a diffuse source in Halley's coma [PDF]

open access: yes
The distribution of dust-scattered intensity in Halley's inner coma is measured with the Vega three-channel spectrometer at three selected wavelengths: 377, 482, and 607 nm.
Clairemidi, Jacques   +3 more
core   +1 more source

Trichromacy is insufficient for mate detection in a mimetic butterfly

open access: yesCommunications Biology
Color vision is thought to play a key role in the evolution of animal coloration, while achromatic vision is rarely considered as a mechanism for species recognition.
Andrew Dang   +10 more
doaj   +1 more source

Limits to the salience of ultraviolet: Lessons from colour vision in bees and birds [PDF]

open access: yes, 2001
Publisher version: http://jeb.biologists.org/content/204/14/2571/F1 ...
Chittka, L, Dyer, AG, Kevan, PG
core  

Sub-Doppler resonances in the back-scattered light from random porous media infused with Rb vapor

open access: yes, 2013
We report on the observation of sub-Doppler resonances on the back-scattered light from a random porous glass medium with rubidium vapor filling its interstices.
Bloch, D.   +5 more
core   +2 more sources

Improving Irrigation Scheduling and Water use Efficiency in Cotton [PDF]

open access: yes, 1989
Cotton (Gossypium hirsutum L) is an important crop in the southern United States. The crop is grown in both irrigated and rainfed situations and is seldom free from periods of water shortages at some stage during the season.
Oosterhuis, Derrick M.
core   +2 more sources

Structural color due to guided-mode resonance in silicon-on-insulator irradiated by nanosecond laser pulses

open access: yesScience and Technology of Advanced Materials
We demonstrate structural color generation in silicon-on-insulator wafers using nanosecond laser irradiation. Laser-induced periodic surface structures on the thin Si film act as grating couplers, enabling optical resonances that produce bright ...
Vygantas Mizeikis   +8 more
doaj   +1 more source

Exogenous melatonin promotes anthocyanin accumulation and coloration in Chinese plum peels

open access: yesBMC Plant Biology
Melatonin (MT) is a growth regulator that influences anthocyanin synthesis during plant growth. However, the regulation mechanism of MT on the coloration of plum peels remains unclear.
Jiawei Zhu   +10 more
doaj   +1 more source

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