Results 31 to 40 of about 1,043,173 (301)

Photonic quasi-crystal LEDs: design, modelling, and optimisation

, 2007
In this paper we investigate improvement in performance attainable by etching Photonic Crystals and Photonic Quasi-Crystals into the top emitting surface of LEDs.
Charlton, M.D.B., Lee, T., Zoorob, M.E.
core   +1 more source

Extremely Polysubstituted Magnetic Material Based on Magnetoplumbite with a Hexagonal Structure: Synthesis, Structure, Properties, Prospects

Nanomaterials, 2019
Crystalline high-entropy single-phase products with a magnetoplumbite structure with grains in the μm range were obtained using solid-state sintering. The synthesis temperature was up to 1400 °C.
Denis A. Vinnik, Vladimir E. Zhivulin, Evgeny A. Trofimov, Andrey Y. Starikov, Dmitry A. Zherebtsov, Olga V. Zaitseva, Svetlana A. Gudkova, Sergey V. Taskaev, Denis S. Klygach, Maxim G. Vakhitov, Elena E. Sander, Darya P. Sherstyuk, Alexey V. Trukhanov   +12 more
doaj   +1 more source

Design of Photonic Crystal Klystrons [PDF]

, 2010
2D Pho­ton­ic crys­tals (PC) with de­fects can act as stand­ing-wave res­onators, which offer ben­e­fit of high mode se­lec­tiv­i­ty for build­ing novel RF sources.
Seviour, Rebecca, Xu, Y.
core  

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

Substrate specificity of Burkholderia pseudomallei multidrug transporters is influenced by the hydrophilic patch in the substrate‐binding pocket

FEBS Letters, EarlyView.
Multidrug transporters BpeB and BpeF from the Gram‐negative pathogen Burkholderia pseudomallei have a hydrophilic patch in their substrate‐binding pocket. Drug susceptibility tests and growth curve analyses using an Escherichia coli recombinant expression system revealed that the hydrophilic patches of BpeB and BpeF are involved in the substrate ...
Ui Okada, Satoshi Murakami
wiley   +1 more source

Mineralogical Characterization and Firing Temperature Delineation on Minoan Pottery, Focusing on the Application of Micro-Raman Spectroscopy

Heritage, 2019
Ceramic objects in whole or in fragments usually account for the majority of findings in an archaeological excavation. Thus, through examination of the values these items bear, it is possible to extract important information regarding raw materials ...
Ioannis E. Grammatikakis, Evangelos Kyriakidis, Konstantinos D. Demadis, Aurelio Cabeza Diaz, Laura Leon-Reina   +4 more
doaj   +1 more source

Propagation characteristics of longitudinal-torsion coupled waves in phononic crystal rods of chiral materials

Archives of Mechanics, 2023
The chiral properties of chiral materials have a great influence on the wave propagation. Applying chiral materials to the design of phononic crystal rods not only increases the design space, but also may have other potential advantages.
P. Dai, R. Wang
doaj   +1 more source

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

FEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman, Anna E. Lester, Brian D. Zoltowski   +2 more
wiley   +1 more source

High-Throughput Synthesis of Pillared-Layered Magnesium Tetraphosphonate Coordination Polymers: Framework Interconversions and Proton Conductivity Studies

Inorganics, 2018
Novel pillared-layered framework materials were synthesized by high-throughput or microwave-assisted methodology that contain Mg2+ and the zwitterionic linker HDTMP (hexamethylenediamine-N,N,N′,N′-tetrakis(methylenephosphonic acid)).
Rosario M.P. Colodrero, Inés R. Salcedo, Montse Bazaga-García, Eleni Barouda, Maria Papadaki, Konstantinos E. Papathanasiou, Daniel Hernández-Alonso, Jordi Rius, Miguel A.G. Aranda, Enrique R. Losilla, Pascual Olivera-Pastor, Konstantinos D. Demadis, Aurelio Cabeza   +12 more
doaj   +1 more source

Finite Element simulation of radiation losses in photonic crystal fibers

, 2007
In our work we focus on the accurate computation of light propagation in finite size photonic crystal structures with the finite element method (FEM).
Burger, Sven, Klose, Roland, Pomplun, Jan, Schmidt, Frank, Zschiedrich, Lin   +4 more
core   +1 more source