Results 1 to 10 of about 550,419 (132)

Mid-infrared supermirrors with finesse exceeding 400 000

Nature Communications, 2023
For trace gas sensing and precision spectroscopy, optical cavities incorporating low-loss mirrors are indispensable for path length and optical intensity enhancement.
Gar-Wing Truong, Lukas W. Perner, D. Michelle Bailey, Georg Winkler, Seth B. Cataño-Lopez, Valentin J. Wittwer, Thomas Südmeyer, Catherine Nguyen, David Follman, Adam J. Fleisher, Oliver H. Heckl, Garrett D. Cole   +11 more
doaj   +1 more source

Comparison of Spatial Structures and Packaging of Phosphorybosil Pyrophosphate Synthetase 2 from Thermus thermophilus HB27 in Rhombohedral and Tetragonal Crystals

Crystals, 2021
We report the spatial structure of phosphoribosyl pyrophosphate synthetase 2 from the thermophilic bacterium Thermus thermophilus HB27 (TthPRPPS2) obtained at a 1.85 Å resolution using a diffraction set collected from rhombohedral crystals (space group ...
Yulia Abramchik, Evgeniy Zayats, Maria Kostromina, Dmitry Lykoshin, Ilya Fateev, Irina Konstantinova, Nadezda Zhukhlistova, Vladimir Timofeev, Inna Kuranova, Roman Esipov   +9 more
doaj   +1 more source

Structure and Molecular Dynamics in Metal-Containing Polyamide 6 Microparticles

Crystals, 2022
Polymer microparticles are used in additive manufacturing, separation and purification devices, biocatalysis, or for the recognition of biomolecules. This study reports on the effect of metal fillers on the structure and molecular dynamics of polyamide 6
Filipa M. Oliveira, Teresa G. Nunes, Nadya V. Dencheva, Zlatan Z. Denchev   +3 more
doaj   +1 more source

Structure of the crystallins [PDF]

Eye, 1999
The lens is formed from two protein superfamilies, the alpha- and beta gamma-crystallins. Representative three-dimensional structures show they both have a basic 2-beta-sheet domain fold, with the beta gamma-domain being made from two intercalating Greek keys.
C, Slingsby, N J, Clout
openaire   +2 more sources

Fundamental studies of isotactic polypropylene composites with brown coals: Structure–properties relationship

Journal of Natural Fibers, 2023
Wood–polymer composites (WPCs) are commonly used in materials technology, and there is a reasonable amount of research for new kinds of green fillers.
Joanna Szymańska, Wojciech H. Bednarek, Marek Szostak, Włodzimierz Urbaniak, Dominik Paukszta   +4 more
doaj   +1 more source

Microstructure, Phase Evolution, and Chemical Behavior of CrCuFeNiTiAlx High Entropy Alloys Processed by Mechanical Alloying

Entropy, 2023
High entropy alloys (HEAs) of the type CrCuFeNiTi-Alx were processed through mechanical alloying. The aluminum concentration was varied in the alloy, to determine its effect on the HEAs’ microstructure, phase formation, and chemical behavior.
Anay del Ángel-González, Greysi D. Tapía-Higuera, Ibeth Rivera-Ortiz, José A. Castillo-Robles, José A. Rodríguez-García, Carlos A. Calles-Arriaga, José G. Miranda-Hernández, Enrique Rocha-Rangel   +7 more
doaj   +1 more source

Thermodynamic Modeling of Formation Enthalpies of Amorphous and Crystalline Phases in Zr, Nd, and Ce-Substituted Fe-Si Systems

Applied Sciences, 2023
The alloys that crystallize in a tetragonal ThMn12-type (space group I4/mmm) structure and are based on Fe and rare earth elements are believed to have a potential to plug the performance gap between ferrite and Nd-based magnets.
Mieszko Kołodziej, Zbigniew Śniadecki
doaj   +1 more source

Crystalline Amyloid Structures at Interfaces [PDF]

Angewandte Chemie International Edition, 2009
AbstractLaying the groundwork: The interfacial self‐assembly properties of an amyloid peptide were used to develop crystalline nanostructures at air–water interfaces, which were studied by both AFM microscopy and X‐ray diffraction (see image). These structures generate regular arrays of functional groups and pave the way to controlled deposition of ...
Lepère, Mathilde, Chevallard, Corinne, Brezesinski, Gerald, Goldmann, Michel, Guenoun, Patrick   +4 more
openaire   +5 more sources

Preservation of a Dust Crystal as it Falls in an Afterglow Plasma

Frontiers in Physics, 2022
In an experiment, the power that sustains a plasma was extinguished, so that microspheres, which had been levitated, fell downward toward a lower electrode. At the beginning of their fall, the microspheres were self-organized with a crystalline structure.
Neeraj Chaubey, J. Goree
doaj   +1 more source

Multi-scale structure, pasting and digestibility of adlay (Coixlachryma-jobi L.) seed starch [PDF]

, 2018
peer-reviewedThe hierarchical structure, pasting and digestibility of adlay seed starch (ASS) were investigated compared with maize starch (MS) and potato starch (PS).
Chen, Jicheng, Chen, Yazhen, Ge, Huifang, Miao, Song, Pang, Jie, Wu, Chunhua   +5 more
core   +1 more source