Results 11 to 20 of about 396,909 (331)

Fixed-Target Pink-Beam Serial Synchrotron Crystallography at Pohang Light Source II

open access: yesCrystals, 2023
Serial crystallography (SX) enables the determination of the structure of macromolecules or small molecules with minimal radiation damage. In particular, biomolecule structures determined using the SX technique have the advantage of providing room ...
Yongsam Kim, Ki Hyun Nam
doaj   +1 more source

On the Effect of Heat Input and Interpass Temperature on the Performance of Inconel 625 Alloy Deposited Using Wire Arc Additive Manufacturing–Cold Metal Transfer Process

open access: yesMetals, 2021
Relatively high heat input and heat accumulation are treated as critical challenges to affect the qualities and performances of components fabricated by wire arc additive manufacturing (WAAM). In this study, various heat inputs, namely 276, 552 and 828 J/
Chengxun Zhang   +8 more
doaj   +1 more source

The sharpness of gamma-ray burst prompt emission spectra [PDF]

open access: yes, 2015
We aim to obtain a measure of the curvature of time-resolved spectra that can be compared directly to theory. This tests the ability of models such as synchrotron emission to explain the peaks or breaks of GBM prompt emission spectra.
Bhat, P. Narayana   +7 more
core   +2 more sources

Klein-Nishina Effects on Optically Thin Synchrotron and Synchrotron Self-Compton Spectrum [PDF]

open access: yes, 2009
We present analytic approximations to the optically thin synchrotron and synchrotron self-Compton (SSC) spectra when Klein-Nishina (KN) effects are important and pair production and external radiation fields can be neglected.
Ando   +25 more
core   +2 more sources

Gamma Ray Burst Prompt Emission Variability in Synchrotron and Synchrotron Self-Compton Lightcurves [PDF]

open access: yes, 2012
Gamma Ray Burst prompt emission is believed to originate from electrons accelerated in a highly relativistic outflow. "Internal shocks" due to collisions between shells ejected by the central engine is a leading candidate for electron acceleration. While
Resmi, L., Zhang, B.
core   +1 more source

In situ Viscometry of Primitive Lunar Magmas at High Pressure and High Temperature

open access: yesFrontiers in Earth Science, 2019
Understanding the dynamics of the magmatic evolution of the interior of the Moon requires accurate knowledge of the viscosity (η) of lunar magmas at high pressure (P) and high temperature (T) conditions. Although the viscosities of terrestrial magmas are
Nachiketa Rai   +5 more
doaj   +1 more source

High-resolution electron time-of-flight spectrometers for angle-resolved measurements at the SQS Instrument at the European XFEL

open access: yesJournal of Synchrotron Radiation, 2022
A set of electron time-of-flight spectrometers for high-resolution angle-resolved spectroscopy was developed for the Small Quantum Systems (SQS) instrument at the SASE3 soft X-ray branch of the European XFEL.
Alberto De Fanis   +26 more
doaj   +1 more source

The synchrotron foreground and CMB temperature-polarization cross correlation power spectrum from the first year WMAP data [PDF]

open access: yes, 2005
We analyse the temperature-polarization cross-correlation in the Galactic synchrotron template that we have recently developed, and between the template and CMB temperature maps derived from WMAP data. Since the polarized synchrotron template itself uses
Bernardi, G.   +4 more
core   +2 more sources

The developmental relationship between teeth and dermal odontodes in the most primitive bony fish Lophosteus

open access: yeseLife, 2020
The ontogenetic trajectory of a marginal jawbone of Lophosteus superbus (Late Silurian, 422 Million years old), the phylogenetically most basal stem osteichthyan, visualized by synchrotron microtomography, reveals a developmental relationship between ...
Donglei Chen   +5 more
doaj   +1 more source

Imaging with Coherent X-rays: From the Early Synchrotron Tests to SYNAPSE

open access: yesJournal of Imaging, 2021
The high longitudinal and lateral coherence of synchrotron X-rays sources radically transformed radiography. Before them, the image contrast was almost only based on absorption.
Giorgio Margaritondo, Yeukuang Hwu
doaj   +1 more source

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