Results 121 to 130 of about 4,739,194 (334)

Berkeley Lighting Cone

open access: yes, 2016
A lighting cone is a simple metal cone placed on the fuel bed of a stove during ignition to act as a chimney, increasing the draft through the fuel bed. Many stoves tend to be difficult to light due to poor draft through the fuel bed, so lighting cones are used in various parts of the world as an inexpensive accessory to help with ignition.
Kathleen Lask, Ashok Gadgil
openaire   +2 more sources

Melanopsin and Cone Photoreceptor Inputs to the Afferent Pupil Light Response

open access: yesFrontiers in Neurology, 2019
Background: Retinal photoreceptors provide the main stage in the mammalian eye for regulating the retinal illumination through changes in pupil diameter, with a small population of melanopsin-expressing intrinsically photosensitive retinal ganglion cells
Andrew J. Zele   +3 more
semanticscholar   +1 more source

21 cm signal from cosmic dawn - II. Imprints of the light-cone effects [PDF]

open access: yes, 2015
Details of various unknown physical processes during the cosmic dawn and the epoch of reionization can be extracted from observations of the redshifted 21-cm signal.
R. Ghara, K. Datta, T. R. Choudhury
semanticscholar   +1 more source

Copper Doping Enhances the Activity and Selectivity of Atomically Precise Ag44 Nanoclusters for Photocatalytic CO2 Reduction

open access: yesAdvanced Functional Materials, EarlyView.
By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu   +5 more
wiley   +1 more source

Manifestly N=3 supersymmetric Euler-Heisenberg action in light-cone superspace [PDF]

open access: yes, 2000
We find a manifestly N=3 supersymmetric generalization of the four-dimensional Euler-Heisenberg (four-derivative, or F^4) part of the Born-Infeld action in light-cone gauge, by using N=3 light-cone superspace.Comment: 9 pages, LaTeX, no figures, macros ...
Deser S.   +4 more
core   +2 more sources

Extended BRS symmetry in non-light-cone and light-cone gauges

open access: yesPhysics Letters B, 1988
Abstract An extended Becchi-Rouet-Stora (BRS) symmetry is used to investigate the gauge dependence of pure Yang-Mills (YM) models in the axial gauge (non-light-cone) and in the light-cone gauge. The results obtained are valid to all orders of perturbation theory.
O. Piguet, M. Schweda, H. Skarke
openaire   +1 more source

Quark Wigner distributions in a light-cone spectator model [PDF]

open access: yes, 2015
We investigate the quark Wigner distributions in a light-cone spectator model. The Wigner distribution, as a quasi-distribution function, provides the most general one-parton information in a hadron. Combining the polarization configurations, unpolarized,
Tianbo Liu, B. Ma
semanticscholar   +1 more source

Non Thermal‐Driven Photocatalytic Ammonia Decomposition at Near‐Room Temperature on a Plasmonic Nanocone Array

open access: yesAdvanced Functional Materials, EarlyView.
Plasmonic photocatalytic ammonia decomposition occurs at near‐room temperature on a plasmonic Au nanocone array under visible light illumination. The nanostructure efficiently harnesses plasmonic modes, leading to increased reaction rates upon plasmon decay.
Thanh‐Lam Bui   +17 more
wiley   +1 more source

Dual conformal symmetry on the light cone

open access: yesNuclear Physics B, 2014
We study the properties of conformal operators in the SL(2) sector of planar N=4 SYM and its supersymmetric SL(2|2) extension. The correlation functions of these operators and their form factors with respect to asymptotic on-shell states are determined ...
S.É. Derkachov   +2 more
doaj   +1 more source

Melosh rotation: source of the proton's missing spin

open access: yes, 2007
It is shown that the observed small value of the integrated spin structure function for protons could be naturally understood within the naive quark model by considering the effect from Melosh rotation.
Berestetskii V R   +18 more
core   +1 more source

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