Search
Results: 3381
Resonant Raman scattering of ZnS<sub>x</sub>Se<sub>1-x</sub> solid solutions
M. Dimitrievska, H. Xie, A. J. Jackson, X. Fontané, M. Espindola-Rodriguez, E. Saucedo, A. Perez-Rodriguez, A. Walsh, V. Izquierdo-Roca
Mar 21, 2016
A comprehensive Raman resonance scattering study of ZnSxSe1-x (ZnSSe) solid solutions over the whole compositional range (0 ≤ x ≤ 1) has been made using 325 and 455 nm excitation wavelengths. The Raman scattering intensities of...
Resonant Raman scattering of ZnS<sub>x</sub>Se<sub>1-x</sub> solid solutions
M. Dimitrievska, H. Xie, A. J. Jackson, X. Fontané, M. Espindola-Rodriguez, E. Saucedo, A. Perez-Rodriguez, A. Walsh, V. Izquierdo-Roca
Mar 21, 2016
A comprehensive Raman resonance scattering study of ZnSxSe1-x (ZnSSe) solid solutions over the whole compositional range (0 ≤ x ≤ 1) has been made using 325 and 455 nm excitation wavelengths. The Raman scattering intensities of...
3D Characterisation of Dry Powder Inhaler Formulations
P Gajjar, ID Styliari, TTH Nguyen, J Carr, X Chen, JA Elliott, RB Hammond, TL Burnett, K Roberts, PJ Withers, D Murnane
Jan 23, 2020
Carrier-based dry powder inhaler (DPI) formulations need to be accurately characterised for their particle size distributions, surface roughnesses, fines contents and flow properties. Understanding the micro-structure of the...
Mixed X-Site Formate-Hypophosphite Hybrid Perovskites.
Yue Wu, David M Halat, Fengxia Wei, Trevor Binford, Ieuan D Seymour, Michael W Gaultois, Sammy Shaker, John Wang, Clare P Grey, Anthony K Cheetham
Sep 10, 2018
Following the recent discovery of a new family of hybrid ABX3 perovskites where X=(H2 POO)- (hypophosphite), this work reports a facile synthesis for mixed X-site formate perovskites of composition [GUA]Mn(HCOO)3-x (H2 POO)x ...
One Island, Two Worlds: An Investigation of the Diverging Economies of the Dominican Republic and Haiti
Daniel Espinal
Jan 01, 0001
An investigative study into the diverging economies of the Dominican Republic and Haiti. A greater focus is placed on the divergence point of the 1960s where two authoritarian leaders both ruled the country.
Developmental Economics Francois Duvalier Rafael Trujillo Hispanola Haiti Dominican Republic Economic History Economics
Published by: Ursinus College
VLT/X-shooter GRBs
T. Zafar, D. Watson, P. Møller, J. Selsing, J.P.U. Fynbo, P. Schady, K. Wiersema, A.J. Levan, K.E. Heintz, A. de Ugarte Postigo, V. D'Elia, P. Jakobsson, J. Bolmer, J. Japelj, S. Covino, A. Gomboc, Z. Cano
Sep 11, 2018
The extinction profiles in gamma-ray burst (GRB) afterglow spectral energy distributions (SEDs) are usually described by the small magellanic cloud (SMC)-type extinction curve. In different empirical extinction laws, the...
Mechanisms of Choice in X-Chromosome Inactivation.
Early in development, placental and marsupial mammals harbouring at least two X chromosomes per nucleus are faced with a choice that affects the rest of their lives: which of those X chromosomes to transcriptionally inactivate....
VLT/X-shooter GRBs
T. Zafar, D. Watson, P. Møller, J. Selsing, J.P.U. Fynbo, P. Schady, K. Wiersema, A.J. Levan, K.E. Heintz, A. de Ugarte Postigo, V. D'Elia, P. Jakobsson, J. Bolmer, J. Japelj, S. Covino, A. Gomboc, Z. Cano
Sep 11, 2018
The extinction profiles in gamma-ray burst (GRB) afterglow spectral energy distributions (SEDs) are usually described by the small magellanic cloud (SMC)-type extinction curve. In different empirical extinction laws, the...
Mechanisms of Choice in X-Chromosome Inactivation.
Early in development, placental and marsupial mammals harbouring at least two X chromosomes per nucleus are faced with a choice that affects the rest of their lives: which of those X chromosomes to transcriptionally inactivate....
Structural diversity and electronic properties of Cu(2)SnX(3) (X = S, Se)
The ternary semiconductors Cu(2)SnX(3) (X = S, Se) are found frequently as secondary phases in synthesized Cu(2)ZnSnS(4) and Cu(2)ZnSnSe(4) samples, but previous reports on their crystal structures and electronic band gaps are...
Structural diversity and electronic properties of Cu(2)SnX(3) (X = S, Se)
The ternary semiconductors Cu(2)SnX(3) (X = S, Se) are found frequently as secondary phases in synthesized Cu(2)ZnSnS(4) and Cu(2)ZnSnSe(4) samples, but previous reports on their crystal structures and electronic band gaps are...
(Negative) Polarity Items in Catalan and Other Trans-Pyrenean Romance Languages
This paper identifies the set of properties that polarity items (PI), negative polarity items (NPI) and negative concord items (NCI) satisfy in Catalan, Aragonese, Benasquese and Occitan. It shows that in Catalan, gaire...
Printable Perovskite Diodes for Broad-Spectrum Multienergy X-Ray Detection.
Babar Shabbir, Jae Choul Yu, Tharindu Warnakula, RAW Ayyubi, James A Pollock, M Mosarof Hossain, Jueng-Eun Kim, Nasiruddin Macadam, Leonard WT Ng, Tawfique Hasan, Doojin Vak, Marcus J Kitchen, Jacek J Jasieniak
Mar 30, 2023
Multienergy X-ray detection is critical to effectively differentiate materials in a variety of diagnostic radiology and nondestructive testing applications. Silicon and selenium X-ray detectors are the most common for...
Criteria for Dynamical Timescale Mass Transfer of Metal-poor Intermediate-mass Stars
Abstract
The stability criteria of rapid mass transfer and common-envelope evolution are fundamental in binary star evolution. They determine the mass, mass ratio, and orbital...
Searching for axion-like particles with X-ray polarimeters
X-ray telescopes are an exceptional tool for searching for new fundamental physics. In particular, X-ray observations have already placed world-leading bounds on the interaction between photons and axion-like particles (ALPs)....
The hyperluminous X‐ray source population
We have recently published a catalog of 1843 candidate ultraluminous X‐ray sources (ULXs). This is the largest catalog of ULXs to date and was built by cross‐correlating recent serendipitous source catalogs from the XMM‐Newton...
Alteration history of Séítah formation rocks inferred by PIXL x-ray fluorescence, x-ray diffraction, and multispectral imaging on Mars.
Michael M Tice, Joel A Hurowitz, Abigail C Allwood, Michael WM Jones, Brendan J Orenstein, Scott Davidoff, Austin P Wright, David AK Pedersen, Jesper Henneke, Nicholas J Tosca, Kelsey R Moore, Benton C Clark, Scott M McLennan, David T Flannery, Andrew Steele, Adrian J Brown, Maria-Paz Zorzano, Keyron Hickman-Lewis, Yang Liu, Scott J VanBommel, Mariek E Schmidt, Tanya V Kizovski, Allan H Treiman, Lauren O'Neil, Alberto G Fairén, David L Shuster, Sanjeev Gupta, PIXL Team
Dec 23, 2022
Collocated crystal sizes and mineral identities are critical for interpreting textural relationships in rocks and testing geological hypotheses, but it has been previously impossible to unambiguously constrain these properties...
Ab initio nonrigid X-ray nanotomography
Michal Odstrcil, Mirko Holler, Jörg Raabe, Alessandro Sepe, Xiaoyuan Sheng, Silvia Vignolini, Christian G. Schroer, Manuel Guizar-Sicairos
Jun 12, 2020
Abstract: Reaching the full potential of X-ray nanotomography, in particular for biological samples, is limited by many factors, of which one of the most serious is radiation damage. Although sample deformation caused by...
Super-Eddington accretion on to the neutron star NGC7793 P13
DJ Walton, F Furst, FA Harrison, D Stern, M Bachetti, D Barret, M Brightman, AC Fabian, MJ Middleton, A Ptak, L Tao
Jun 13, 2018
We present a detailed, broad-band X-ray spectral analysis of the ultraluminous X-ray source (ULX) pulsar NGC 7793 P13, a known super-Eddington source, utilizing data from the XMM–Newton, NuSTAR and Chandra observatories. The...
Structure of crystalline and amorphous materials in the NASICON system Na<sub>1+x</sub>Al<sub>x</sub>Ge<sub>2- x</sub>(PO<sub>4</sub>)<sub>3</sub>
Lawrence V.D. Gammond, Henry Auer, Rita Mendes Da Silva, Anita Zeidler, Jairo F. Ortiz-Mosquera, Adriana M. Nieto-Muñoz, Ana Candida M. Rodrigues, Igor D'Anciães Almeida Silva, Hellmut Eckert, Chris J. Benmore, Philip S. Salmon
Aug 21, 2021
The structure of crystalline and amorphous materials in the sodium (Na) super-ionic conductor system Na1+xAlxGe2-x(PO4)3 with x = 0, 0.4, and 0.8 was investigated by combining (i) neutron and x-ray powder diffraction and...
Structure of crystalline and amorphous materials in the NASICON system Na<sub>1+x</sub>Al<sub>x</sub>Ge<sub>2- x</sub>(PO<sub>4</sub>)<sub>3</sub>
Lawrence V.D. Gammond, Henry Auer, Rita Mendes Da Silva, Anita Zeidler, Jairo F. Ortiz-Mosquera, Adriana M. Nieto-Muñoz, Ana Candida M. Rodrigues, Igor D'Anciães Almeida Silva, Hellmut Eckert, Chris J. Benmore, Philip S. Salmon
Aug 21, 2021
The structure of crystalline and amorphous materials in the sodium (Na) super-ionic conductor system Na1+xAlxGe2-x(PO4)3 with x = 0, 0.4, and 0.8 was investigated by combining (i) neutron and x-ray powder diffraction and...
Dynamic structure elucidation of chemical reactivity by laser pulses and X-ray probes
Visualising chemical reactions by X-ray methods is a tantalising prospect. New light sources provide the prospect for studying atomic, electronic and energy transfers accompanying chemical change by X-ray spectroscopy and...
Ab initio nonrigid X-ray nanotomography.
Michal Odstrcil, Mirko Holler, Jörg Raabe, Alessandro Sepe, Xiaoyuan Sheng, Silvia Vignolini, Christian G Schroer, Manuel Guizar-Sicairos
Aug 21, 2019
Reaching the full potential of X-ray nanotomography, in particular for biological samples, is limited by many factors, of which one of the most serious is radiation damage. Although sample deformation caused by radiation damage...
|
|< |
< |
1 |