Results 91 to 100 of about 485,962 (354)

Grain Boundary Scars and Spherical Crystallography

, 2003
We describe experimental investigations of the structure of two-dimensional spherical crystals. The crystals, formed by beads self-assembled on water droplets in oil, serve as model systems for exploring very general theories about the minimum energy ...
Bausch, A. R., Bowick, M. J., Cacciuto, A., Dinsmore, A. D., Hsu, M. F., Nelson, D. R., Nikolaides, M. G., Travesset, A., Weitz, D. A.   +8 more
core   +1 more source

Highly Efficient 3D‐Printed PVDF‐Based Triboelectric Nanogenerators Featuring Polymorphic Perovskite Nanofillers

Advanced Functional Materials, EarlyView.
This study demonstrates the use of a low‐cost 3D printing technique to prepare a large‐area PVDF‐FAPbI3 composite dielectric film for flexible TENG application. The δ→α phase transformation of the FAPbI3 nanofillers has significantly improved the β‐phase content, morphology, and dielectric properties of the PVDF film.
Nurfatin Hafizah Zain Karimy, Hai Li, Hock Beng Lee, Devi Prashad Ojha, Manoj Mayaji Ovhal, Vasanthan Devaraj, Sooman Lim, Jae‐Wook Kang   +7 more
wiley   +1 more source

Distinguishing Biologically Controlled Calcareous Biomineralization in Fossil Organisms Using Electron Backscatter Diffraction (EBSD)

Frontiers in Earth Science, 2018
Although carbonate-precipitating cyanobacteria are ubiquitous in aquatic ecosystems today, the criteria used to identify them in the geological record are subjective and rarely testable.
Jan-Filip Päßler, Emilia Jarochowska, Michel Bestmann, Axel Munnecke   +3 more
doaj   +1 more source

Using SMILES strings for the description of chemical connectivity in the Crystallography Open Database

Journal of Cheminformatics, 2018
Computer descriptions of chemical molecular connectivity are necessary for searching chemical databases and for predicting chemical properties from molecular structure.
M. Quirós, S. Gražulis, Saulė Girdzijauskaitė, Andrius Merkys, A. Vaitkus   +4 more
semanticscholar   +1 more source

Electron crystallography [PDF]

Acta Crystallographica Section A Foundations of Crystallography, 1996
The idea of solving unknown crystal structures from experimental electron-diffraction intensities and high-resolution electron micrographs has remained a controversial topic in the 60 year history of electron crystallography. In this review it will be shown that the application of modern direct phasing techniques, familiar to X-ray crystallographers ...
openaire   +2 more sources

Enhanced Electromechanical Response in 1D Hybrid Perovskites: Coexistence of Normal and Relaxor Ferroelectric Phases

Advanced Functional Materials, EarlyView.
The dynamic polarization reversal of coexisting normal and relaxor ferroelectrics in 1D TMAPbI₃ (tetramethylammonium, TMA) is deciphered through combined experimental and theoretical approaches. By bridging atomic‐scale motion, macroscopic polarization switching, and depolarization effects, a universal methodology is established to engineer next ...
Chen Xue, Masaru Fujibayashi, Hengming Huang, Chisato Kato, Katsuya Ichihashi, Jun Manabe, Sadafumi Nishihara, Xiao‐Ming Ren, Takayoshi Nakamura   +8 more
wiley   +1 more source

The time revolution in macromolecular crystallography

Structural Dynamics
Macromolecular crystallography has historically provided the atomic structures of proteins fundamental to cellular functions. However, the advent of cryo-electron microscopy for structure determination of large and increasingly smaller and flexible ...
Georgii Khusainov, Joerg Standfuss, Tobias Weinert   +2 more
doaj   +1 more source

Effects of Ce-Modified TiN Inclusions on the Fatigue Properties of Gear Steel 20CrMnTi

Crystals, 2023
In this paper, the results of a study on the influences of different morphologies, types, and sizes of inclusions on the fatigue lives of 20CrMnTi are reported.
Jian Wang, Jun Peng, Fang Zhang, Yujie Li, Xin Zhang, Shengli An   +5 more
doaj   +1 more source

The first mononuclear PtIII complex. Molecular structures of (NBu4)[PtIII(C6Cl5)4] and of its parent compound {NBu4}2[PtII(C6Cl5)4]·2CH2Cl2 [PDF]

, 1984
(NBu4)[PtIII(C6Cl5)4], fully characterized by crystallographic, spectral, and magnetic measurements has been isolated by oxidation with halogens or TICl3 of the parent compound (NBu4)2[PtII(C6CL5)4], which has also been analysed by X-ray ...
Bau, Robert, Forniés, Juan, Menjón, Babil, Sünkel, Karlheinz, Tomás, Milagros, Usón, Rafael   +5 more
core   +1 more source

MolProbity: all-atom structure validation for macromolecular crystallography

Acta Crystallographica Section D: Biological Crystallography, 2009
MolProbity structure validation will diagnose most local errors in macromolecular crystal structures and help to guide their correction.
Vincent B. Chen, W. Bryan, Arendall, J. Headd, D. Keedy, M. Robert, Immormino, Gary J. Kapral, L. Murray, S. Jane, Richardson, C. David   +11 more
semanticscholar   +1 more source