Results 91 to 100 of about 415,174 (326)

The no-defect conjecture in cosmic crystallography

, 1996
The topology of space is usually assumed simply connected, but could be multi-connected. We review in the latter case the possibility that topological defects arising at high energy phase transitions might still be present and find that either they are ...
't Hooft, Birell, Borrill, Carter, Cornish, de Oliveira Costa, Demaret, Ellis, Gibbons, Gurzadyan, Hindmarsh, Isham, Isham, Jean-Philippe Uzan, Kibble, Kibble, Kolb, Lachièze-Rey, Lehoucq, Linde, Linde, Lola, Patrick Peter, Penrose, Polyakov, Preskill, Shellard, Zeldovich   +27 more
core   +1 more source

Morphological and Crystallographic Characteristics of α Structure in a Low-Carbon Iron–Nickel Alloy

Crystals, 2018
The features of α (body-centered cubic) structures were investigated in a low-carbon multicomponent alloy from morphological and crystallographic perspectives.
Gaojun Mao, Cyril Cayron, Xiuli Mao, Rui Cao, Roland Logé, Jianhong Chen   +5 more
doaj   +1 more source

Computational Modeling of Reticular Materials: The Past, the Present, and the Future

Advanced Materials, EarlyView.
Reticular materials are advanced materials with applications in emerging technologies. A thorough understanding of material properties at operating conditions is critical to accelerate the deployment at an industrial scale. Herein, the status of computational modeling of reticular materials is reviewed, supplemented with topical examples highlighting ...
Wim Temmerman, Ruben Goeminne, Kuber Singh Rawat, Veronique Van Speybroeck   +3 more
wiley   +1 more source

The Evolution and the Advantages of MicroED

Frontiers in Molecular Biosciences, 2018
MicroED is a method which combines cryo-EM sample preparation and instrumentation, with electron and X-ray crystallography data analysis, and it has been employed to solve many protein crystal structures at high resolution.
Brent L. Nannenga, Guanhong Bu, Dan Shi
doaj   +1 more source

Supramolecular Chemistry in Metal–Organic Framework Materials

Advanced Materials, EarlyView.
This review highlights synergies between reticular chemistry and supramolecular chemistry. The role of supramolecular interactions in determining framework…guest interactions and attempts to understand dynamic behavior in metal–organic frameworks (MOFs), particularly emphasizing the development of crystal sponges, studying reactions in frameworks and ...
Eugenia Miguel‐Casañ, Georgia R. F. Orton, Danielle E. Schier, Neil R. Champness   +3 more
wiley   +1 more source

Is Captain Kirk a natural blonde? Do X-ray crystallographers dream of electron clouds? Comparing model-based inferences in science with fiction [PDF]

, 2018
Scientific models share one central characteristic with fiction: their relation to the physical world is ambiguous. It is often unclear whether an element in a model represents something in the world or presents an artifact of model building.
Barwich, Ann-Sophie
core  

An improved cosmic crystallography method to detect holonomies in flat spaces

, 2011
A new, improved version of a cosmic crystallography method for constraining cosmic topology is introduced. Like the circles-in-the-sky method using CMB data, we work in a thin, shell-like region containing plenty of objects.
Adams, Aurich, Aurich, Aurich, Aurich, Cornish, Cornish, Ellis, Fagundes, Fagundes, Fang, Gott, H. Fujii, Hinshaw, Key, Lachieze-Rey, Lehoucq, Lehoucq, Lehoucq, Lew, Luminet, Marecki, Mota, Nowacki, Riazuelo, Roming, Roukema, Roukema, Roukema, Roukema, Roukema, Schneider, Sokolov, Starobinsky, Stevens, Uzan, Uzan, Véron-Cetty, Y. Yoshii   +38 more
core   +1 more source

MicroED data collection and processing. [PDF]

, 2015
MicroED, a method at the intersection of X-ray crystallography and electron cryo-microscopy, has rapidly progressed by exploiting advances in both fields and has already been successfully employed to determine the atomic structures of several proteins ...
de la Cruz, M Jason, Gonen, Tamir, Hattne, Johan, Leslie, Andrew GW, Nannenga, Brent L, Reyes, Francis E, Shi, Dan   +6 more
core   +1 more source

Fluorescent Bis(guanidine) Copper Complexes as Precursors for Hydroxylation Catalysis

Inorganics, 2018
Bis(guanidine) copper complexes are known for their ability to activate dioxygen. Unfortunately, until now, no bis(guanidine) copper-dioxygen adduct has been able to transfer oxygen to substrates.
Florian Strassl, Alexander Hoffmann, Benjamin Grimm-Lebsanft, Dieter Rukser, Florian Biebl, Mai Anh Tran, Fabian Metz, Michael Rübhausen, Sonja Herres-Pawlis   +8 more
doaj   +1 more source

Crystallography and Geopolitics [PDF]

Science, 2014
Developed and developing nations recognize that innovation is key to their economies. Connecting this with the discipline of crystallography may not seem immediately apparent, but during the past century, understanding the structure of matter has transformed industries and created new frontiers, from the design of new medicines and materials to ...
openaire   +3 more sources