Results 1 to 10 of about 860,806 (269)

Synthesis, Electronic Structure, and Electrochemical Properties of the Cubic Mg2MnO4 Spinel with Porous-Spongy Structure

open access: yesNanomaterials, 2021
Mg2MnO4 nanoparticles with cubic spinel structure were synthesized by the sol-gel method using polyvinyl alcohol (PVA) as a chelating agent. X-ray powder diffraction, infrared spectrum (IR), scanning electron microscope (SEM), and transmission electron ...
Zhenyan Wang   +10 more
doaj   +1 more source

Recent progress in terahertz modulation using photonic structures based on two‐dimensional materials

open access: yesInfoMat, 2021
Terahertz (THz) technology has attracted great attention in the past few decades for its unique applications in various fields, including spectroscopy, noninvasive detection, wireless communications, and imaging. In parallel to this, the practical, fast,
Ziming Wang   +6 more
doaj   +1 more source

Molecular tectonics: from crystals to crystals of crystals [PDF]

open access: yesChemical Communications, 2013
The in situ combination of M(II) cations (Co, Ni, Cu or Zn) with 2,4,6-pyridinetricarboxylic acid as a ligand, a bisamidinium dication as a H-bond donor tecton and NaOH leads to the formation of anionic metal complexes ML2(2-) and their interconnection into isomorphous 3D H-bonded networks displaying different colours which were used as preformed seed ...
Marinescu, Gabriela   +3 more
openaire   +3 more sources

Angular engineering strategy of an additional periodic phase for widely tunable phase-matched deep-ultraviolet second harmonic generation

open access: yesLight: Science & Applications, 2022
A widely tunable phase-matched second harmonic generation (221–332 nm) covering almost the entire deep-UV spectral range is experimentally realized by angular engineering strategy of an additional periodic phase.
Mingchuan Shao   +3 more
doaj   +1 more source

Crystallization and Crystal Data of Monellin [PDF]

open access: yesProceedings of the National Academy of Sciences, 1975
Crystals of monellin, a sweet protein from Dioscoreophyllum cumminsii , were grown by vapor diffusion of 20% ethanol into buffered protein solution. The crystals are orthorhombic, belonging to space group P2 1 2 1
A, Wlodawer, K O, Hodgson
openaire   +2 more sources

crystal-torture: A crystal tortuosity module [PDF]

open access: yesJournal of Open Source Software, 2019
crystal-torture is a Python, Fortran, and OpenMP module for the analysis of diffusion networks in crystal structures. Ionic diffusion through crystalline solids depends not only on the dynamics of ions within the crystal, but also the connectivity of the transport network.Understanding how the connectivity of diffusion pathways in crystal structures is
Conn O'Rourke, Benjamin J. Morgan
openaire   +3 more sources

Spontaneous Growth of CaBi4Ti4O15 Piezoelectric Crystal Using Mixed Flux Agents

open access: yesCrystals, 2020
The bismuth layer-structured ferroelectrics (BLSFs) materials have potential for high-temperature piezoelectric applications. Among these piezoelectric materials, the CaBi4Ti4O15 (CBT) piezoelectric ceramic with a high decomposition temperature of about ...
Mengdi Fan   +6 more
doaj   +1 more source

Efficient Direct Laser Generation by Three‐Phonon‐Assisted Transition with Yb:YCOB Crystal

open access: yesAdvanced Photonics Research, 2023
Electron–phonon‐coupling effect can generate the direct lasing beyond the fluorescence spectrum of the gain medium, but the laser efficiency is still low owing to weak multiphonon‐coupling intensity.
Huichen Si   +5 more
doaj   +1 more source

Computational crystallization [PDF]

open access: yesArchives of Biochemistry and Biophysics, 2016
Crystallization is a key step in macromolecular structure determination by crystallography. While a robust theoretical treatment of the process is available, due to the complexity of the system, the experimental process is still largely one of trial and error.
Altan, Irem   +2 more
openaire   +3 more sources

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