Results 71 to 80 of about 5,119,857 (297)

A New Nonparametric Test for Two Sample Multivariate Location Problem with Application to Astronomy

open access: yesJournal of Statistical Theory and Applications (JSTA), 2019
This paper provides a nonparametric test for the identity of two multivariate continuous distribution functions when they differ in locations. The test uses Wilcoxon rank-sum statistics on distances between observations for each of the components and is ...
Soumita Modak, Uttam Bandyopadhyay
doaj   +1 more source

Strong Coupling in Bulk Nanoplasmonic Nanoplatelet Perovskite Scintillators

open access: yesAdvanced Materials, EarlyView.
A bulk scintillating nanocomposite is engineered from CsPbBr3 nanoplatelets and Ag nanocubes to support exciton–plasmon strong coupling under X‐ray excitation. The resulting hybrid polaritonic states appear directly in radioluminescence, opening a route toward polariton‐enabled scintillator design beyond conventional Purcell enhancement.
Michal Makowski   +13 more
wiley   +1 more source

АSTERISM AND CONSTELLATION: TERMINOLOGICAL DILEMMAS

open access: yesZbornik Radova: Geografski institut "Jovan Cvijić", 2017
In contemporary astronomical literature, there is no uniform definition of the term asterism. This inconsistency is the consequence of differences between traditional understanding of the term constellation, from the standpoint of the naked eye astronomy,
Zorica Prnjat, Milutin Tadić
doaj   +2 more sources

"We make guilty of our disasters the sun, the moon, and the stars": a semantic mapping of Shakespeare's astronomical language

open access: yesAnuario de Estudios Filológicos
Shakespeare’s language has been studied and analysed for centuries, including monographs on the most disparate semantic fields –such as botany, geography, commerce, etc. In this regard, astronomical language is no exception.
Gustavo A. Rodríguez Martín
doaj   +1 more source

Modern Polish astronomical terminology : heritage and future [PDF]

open access: yes, 2020
This text addresses the Polish scientifi c terminology of astronomy. This subject is relatively rarely discussed in the linguistic literature. The authors handle the divisions of astronomical terms by specifi c criteria, the process of coining
Waniakowa, Jadwiga   +3 more
core   +1 more source

Parity‐Dependent THz Harmonic Generation in Electrically Pumped Micro‐Lasers Exploiting Topological Insulator–Metamaterial Gratings

open access: yesAdvanced Materials, EarlyView.
Topological insulator–metamaterials integrated with electrically driven terahertz quantum cascade lasers enable parity‐dependent harmonic generation. Bulk‐dominated Bi2Se3 favors third‐harmonic emission at 9.96 THz, whereas topological‐surface‐state‐dominated Bi2Se3, Bi2Te3, and (Bi,Sb)2Te3 generate strong second harmonics near 6.5 THz.
Alessandra Di Gaspare   +9 more
wiley   +1 more source

Receipt for membership of Carr Waller Pritchett to the Royal Astronomical Society, 16 February 1880.

open access: yes, 1880
Receipt for £2.2.0 (two guineas) from the Royal Astronomical Society, dated 16 February 1880 and signed by "W.N. Wesley, Asst Sec"
Royal Astronomical Society
core   +1 more source

Single Image Super-Resolution Using Compressive Sensing With a Redundant Dictionary

open access: yesIEEE Photonics Journal, 2015
In medical imaging and astronomical observation, high-resolution (HR) images are urgently desired and required. In recent years, many researchers have proposed various ways to achieve the goal of image super-resolution (SR), ranging from simple linear ...
Yicheng Sun   +4 more
doaj   +1 more source

Wafer‐Scale Direct Growth of Ultraclean Monolayer Amorphous Carbon on c‐Sapphire by Remote Catalytic Dehydrogenation

open access: yesAdvanced Materials, EarlyView.
Remote catalytic dehydrogenation enables the direct growth of monolayer amorphous carbon on a 2‐inch sapphire wafer by thermal CVD. Spatial separation of the catalyst from the growth substrate eliminates metallic residue and post‐growth processing, yielding a wafer‐scale uniform film with a random polygonal sp2‐hybridized carbon network that exhibits ...
Muhammad Sabbtain Abbas   +8 more
wiley   +1 more source

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

open access: yesAdvanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan   +6 more
wiley   +1 more source

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