Results 41 to 50 of about 1,038,073 (282)

On the Role of Reduced Air Density Along the Lightning Leader Path to Ground in Increasing X‐Ray Production Relative to Normal Atmospheric Conditions

Geophysical Research Letters, 2019
Mallick et al. (2012, https://doi.org/10.1029/2012JD017555) discovered that subsequent‐stroke leaders in natural negative lightning could be more prolific producers of hard X‐rays and gamma rays than the first‐stroke leader in the same flash.
M. D. Tran, I. Kereszy, V. A. Rakov, J. R. Dwyer   +3 more
doaj   +1 more source

Development of non-destructive testing (NDT) technique for HIPed interface by Compton scattering X-ray spectroscopy

Nuclear Materials and Energy, 2022
High energy X-rays (115.56 keV) were used to measure the HIPed interface of F82H steel. The X-ray energy spectra of the samples were analyzed focusing on W and Ta fluorescence X-rays, Compton scattering and elastic scattering X-rays.
Hiroshi Sakurai, Kosuke Suzuki, Shoya Ishii, Kazushi Hoshi, Takashi Nozawa, Hidetsugu Ozaki, Hiroto Haga, Hiroyasu Tanigawa, Yoji Someya, Masao Tsuchiya, Hiroshi Takeuchi, Naruki Tsuji   +11 more
doaj   +1 more source

X-ray observations of classical novae. Theoretical implications [PDF]

, 2009
Detection of X-rays from classical novae, both in outburst and post-outburst, provides unique and crucial information about the explosion mechanism. Soft X-rays reveal the hot white dwarf photosphere, whenever hydrogen (H) nuclear burning is still on and
Balman, Balman, Bode, Bode, Cropper, Dobrotka, Drake, Gutiérrez, Gómez-Gomar, Gónzalez-Riestra, Hachisu, Hachisu, Hachisu, Henze, Hernanz, Hernanz, Hernanz, Hernanz, José, Kato, Kato, Krautter, Leibowitz, Livio, Livio, Lloyd, Nelson, Ness, Ness, Ness, Ness, Ness, Ness, Orio, Orio, Orio, Orio, Pietsch, Prialnik, Sala, Sala, Sala, Sala, Shanley, Shore, Sokoloski, Starrfield, Starrfield, Tatischeff, Tuchman, van Rossum, Yaron, Ögelman, Ögelman   +53 more
core   +2 more sources

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

FEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang, Naoki Sunagawa, Toma Kashima, Kiyohiko Igarashi, Akimasa Miyanaga, Shinya Fushinobu   +5 more
wiley   +1 more source

Highly Collimated Monochromatic X-rays Generated by Collision of High-Energy Electrons with Tightly Focused Linearly Polarized Laser Pulse

Crystals, 2023
This article delves into the generation and modulation process of X-rays as high-energy photon sources. Using the principles of classical electrodynamics, this study enables nonrelativistic short pulse lasers to collide with high-energy electrons while ...
Mingjing Zeng, Yangyi Zhang, Yifan Chang, Youwei Tian   +3 more
doaj   +1 more source

Solution of a uniqueness problem in the discrete tomography of algebraic Delone sets [PDF]

, 2011
We consider algebraic Delone sets $\varLambda$ in the Euclidean plane and address the problem of distinguishing convex subsets of $\varLambda$ by X-rays in prescribed $\varLambda$-directions, i.e., directions parallel to nonzero interpoint vectors of ...
Huck, Christian, Spiess, Michael
core   +1 more source

The Caenorhabditis elegans DPF‐3 and human DPP4 have tripeptidyl peptidase activity

FEBS Letters, EarlyView.
The dipeptidyl peptidase IV (DPPIV) family comprises serine proteases classically defined by their ability to remove dipeptides from the N‐termini of substrates, a feature that gave the family its name. Here, we report the discovery of a previously unrecognized tripeptidyl peptidase activity in DPPIV family members from two different species.
Aditya Trivedi, Rajani Kanth Gudipati
wiley   +1 more source

Solar X-ray spectrum reproduced in vacuum [PDF]

, 1967
Desired low energy X rays are produced by modifying commercial ion tubes and combining them with standard power supplies and control circuitry.
Erdman, C. A., Kirchner, L. P.
core   +1 more source

On the X-rays of permutations

, 2005
The X-ray of a permutation is defined as the sequence of antidiagonal sums in the associated permutation matrix. X-rays of permutation are interesting in the context of Discrete Tomography since many types of integral matrices can be written as linear ...
Bebeacua, Cecilia, Mansour, Toufik, Postnikov, Alexander, Severini, Simone   +3 more
core   +2 more sources

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source