Results 61 to 70 of about 580,139 (299)

An ultra-thin waveguide twist constructed using fish-scale metallic wires

open access: yes, 2011
This study theoretically and experimentally investigates the transmission properties of a metamaterial slab comprised of two layers of metallic fish-scale structure arrays and a sandwiched dielectric layer.
Cao, Yang   +8 more
core   +1 more source

HST hot Jupiter transmission spectral survey: evidence for aerosols and lack of TiO in the atmosphere of WASP-12b [PDF]

open access: yes, 2013
We present HST optical transmission spectra of the transiting hot Jupiter WASP-12b, taken with the STIS instrument. From the transmission spectra, we are able to decisively rule out prominent absorption by TiO in the exoplanet's atmosphere.
Aigrain, S.   +19 more
core   +7 more sources

Value of MRI Outcomes for Preventive and Early‐Stage Trials in Spinocerebellar Ataxias 1 and 3

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the value of MRI outcomes as endpoints for preventive and early‐stage trials of two polyglutamine spinocerebellar ataxias (SCAs). Methods A cohort of 100 participants (23 SCA1, 63 SCA3, median Scale for the Assessment and Rating of Ataxia (SARA) score = 5, 42% preataxic, and 14 gene‐negative controls) was scanned at 3T up ...
Thiago J. R. Rezende   +26 more
wiley   +1 more source

Prediction of peat properties from transmission mid-infrared spectra [PDF]

open access: yesSOIL
A better understanding of peatland dynamics requires more data on more peat properties than provided by existing databases. These data needs may be addressed with resource-efficient measurement tools, such as models that predict peat properties from mid ...
H. Teickner, H. Teickner, K.-H. Knorr
doaj   +1 more source

Gaussian quadrature exponential sum modeling of near infrared methane laboratory spectra obtained at temperatures from 106 to 297 K [PDF]

open access: yes, 1990
Transmission measurements made on near-infrared laboratory methane spectra have previously been fit using a Malkmus band model. The laboratory spectra were obtained in three groups at temperatures averaging 112, 188, and 295 K; band model fitting was ...
Benner, D. C.   +4 more
core   +1 more source

Indirect Optical Absorption of Single Crystalline beta-FeSi2

open access: yes, 2004
We investigated optical absorption spectra near the fundamental absorption edge of beta-FeSi2 single crystals by transmission measurements. The phonon structure corresponding to the emission and absorption component was clearly observed in the low ...
Kikuma, Isao   +4 more
core   +2 more sources

Theoretical Transmission Spectra during Extrasolar Giant Planet Transits

open access: yesThe Astrophysical Journal, 2000
revised to agree with accepted paper, ApJ, in press.
Seager, S., Sasselov, D. D.
openaire   +2 more sources

Functional and Structural Evidence of Neurofluid Circuit Aberrations in Huntington Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Disrupted neurofluid regulation may contribute to neurodegeneration in Huntington disease (HD). Because neurofluid pathways influence waste clearance, inflammation, and the distribution of central nervous system (CNS)–delivered therapeutics, understanding their dysfunction is increasingly important as targeted treatments emerge.
Kilian Hett   +8 more
wiley   +1 more source

Size Determination of Polystyrene Sub-Microspheres Using Transmission Spectroscopy

open access: yesApplied Sciences, 2020
Nano/micro polystyrene (PS) beads have found many applications in different fields spanning from drug delivery, bio-diagnostics, and hybrid plasmonics to advanced photonics.
Tien Van Nguyen   +8 more
doaj   +1 more source

Laboratory mid-IR spectra of equilibrated and igneous meteorites. Searching for observables of planetesimal debris

open access: yes, 2017
Meteorites contain minerals from Solar System asteroids with different properties (like size, presence of water, core formation). We provide new mid-IR transmission spectra of powdered meteorites to obtain templates of how mid-IR spectra of asteroidal ...
de Vries, B. L.   +3 more
core   +1 more source

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