Results 101 to 110 of about 1,381,203 (296)

A Platform for Laser-Driven Ion Sources Generated with Nanosecond Laser Pulses in the Intensity Range of 10¹³–10¹⁵ W/cm²

Quantum Beam Science
An experimental platform for laser-driven ion (sub-MeV) acceleration and potential applications was commissioned at the HiLASE laser facility. The auxiliary beam of the Bivoj laser system operating at a GW level peak power (~10 J in 5–10 ns) and 1–10 Hz ...
L. Giuffrida, V. Istokskaia, A. Picciotto, V. Kantarelou, M. Barozzi, R. Dell`Anna, M. Divoky, O. Denk, D. Giubertoni, F. Grepl, A. Hadjikyriacou, M. Hanus, J. Krasa, M. Kucharik, T. Levato, P. Navratil, J. Pilar, F. Schillaci, S. Stancek, M. Tosca, M. Tryus, A. Velyhan, A. Lucianetti, T. Mocek, D. Margarone   +24 more
doaj   +1 more source

Ion Heating in Advanced Dielectric Barrier Discharge Ion Sources for Ambient Mass Spectrometry. [PDF]

J Am Soc Mass Spectrom, 2023
Bouza M, Ahmed E, Rocío-Bautista P, Brandt S, Franzke J, Molina-Díaz A, García-Reyes JF, Donald WA.   +7 more
europepmc   +1 more source

Single ion implantation for single donor devices using Geiger mode detectors

, 2009
Electronic devices that are designed to use the properties of single atoms such as donors or defects have become a reality with recent demonstrations of donor spectroscopy, single photon emission sources, and magnetic imaging using defect centers in ...
E Bielejec, Gramsch E Pcheliakov O P Chistokhin I B Tishkovsky E, Hopf T, J A Seamons, M S Carroll, Shinada T, The Stopping, Wu S Wu X Choa F Krainak M A   +7 more
core   +1 more source

Chameleon sequences reveal structural effects in proteins representing micelle‐like distribution of hydrophobicity

FEBS Open Bio, EarlyView.
Amino acids sequence of two different proteins with the same sequence (chameleon sequence—black boxes) represent in 3D structure of the proteins different secondary structures: HHHH—helical and BBB—Beta‐structural. The chains folded in water environment adopt different III‐order structures in which the chameleon fragments appear to adopt similar status
Irena Roterman, Katarzyna Stapor, Leszek Konieczny, Krzysztof Gądek, Piotr Nowakowski   +4 more
wiley   +1 more source

Investigation of EDF evolution and charged particle transport in E × B plasma based negative ion sources using kinetic simulations. [PDF]

Sci Rep, 2023
Shah M, Chaudhury B, Bandyopadhyay M.
europepmc   +1 more source

Progress on indium and barium single ion optical frequency standards

, 2005
We report progress on 115In+ and 137Ba+ single ion optical frequency standards using all solid-state sources. Both are free from quadrupole field shifts and together enable a search for drift in fundamental constants.Comment: 2 pages, 1 figure, submitted
Fortson, Norval, Metz, Steven, Nagourney, Warren, Sherman, Jeff A., Trimble, William   +4 more
core   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

FEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke, Michal Banasik, Rokas Juodeikis, Martin J. Warren, Richard W. Pickersgill   +4 more
wiley   +1 more source

Systemic dysregulation of apolipoproteins in amyotrophic lateral sclerosis serum

FEBS Open Bio, EarlyView.
Amyotrophic lateral sclerosis (ALS) is a fatal disease that damages motor neurons. This study found that people with ALS show significant changes in blood fats and the proteins that carry them. Several apolipoproteins were higher, lipid balances were altered, and normal protein–lipid relationships were disrupted.
Finula I. Isik, Russell Pickford, Hannah C. Timmins, Olivier Piguet, Glenda M. Halliday, Matthew C. Kiernan, Woojin Scott Kim   +6 more
wiley   +1 more source

Research Progress in Metal Ion Chelated Peptides of Marine Sources

Shipin gongye ke-ji
Marine peptides are one of the important sources of biological peptides. Marine peptides have many types and are easy to be modified by metal ions.
Hong QIAO, Songsong LI, Nanxi ZHOU, Tongcheng XU, Aizhen ZONG, Xiaowei FEI, Dailei WEI, Jie SUN   +7 more
doaj   +1 more source

Modeling of plasma transport and negative ion extraction in a magnetized radio-frequency plasma source

New Journal of Physics, 2017
Negative ion sources for fusion are high densities plasma sources in large discharge volumes. There are many challenges in the modeling of these sources, due to numerical constraints associated with the high plasma density, to the coupling between plasma
G Fubiani, L Garrigues, G Hagelaar, N Kohen, J P Boeuf   +4 more
doaj   +1 more source