Results 31 to 40 of about 453,956 (245)

The infrared spectra of ABC-stacking tri- and tetra-layer graphenes studied by first-principles calculations

, 2010
The infrared absorption spectra of ABC-stacking tri- and tetra-layer graphenes are studied using the density functional theory. It is found that they exhibit very different characteristic peaks compared with those of AB-stacking ones, caused by the ...
San-Huang Ke, W. A. Harrison, Xiaowei Li, Yuehua Xu   +3 more
core   +1 more source

Influence of perylenediimide–pyrene supramolecular interactions on the stability of DNA-based hybrids: Importance of electrostatic complementarity

Beilstein Journal of Organic Chemistry, 2014
Aromatic π–π stacking interactions are ubiquitous in nature, medicinal chemistry and materials sciences. They play a crucial role in the stacking of nucleobases, thus stabilising the DNA double helix.
Christian B. Winiger, Simon M. Langenegger, Oleg Khorev, Robert Häner   +3 more
doaj   +1 more source

Polytypes of long-period stacking structures synchronized with chemical order in a dilute Mg-Zn-Y alloy

, 2011
A series of structural polytypes formed in an Mg-1at.%Zn-2at.%Y alloy has been identified, which are reasonably viewed as long-period stacking derivatives of the hcp Mg structure with alternate AB stacking of the close-packed atomic layers.
Abe, E., Itoi, T., Kawamura, Y., Ono, A., Yamasaki, M.   +4 more
core   +1 more source

Stacking for machine learning redshifts applied to SDSS galaxies

, 2016
We present an analysis of a general machine learning technique called 'stacking' for the estimation of photometric redshifts. Stacking techniques can feed the photometric redshift estimate, as output by a base algorithm, back into the same algorithm as ...
Hoyle, Ben, Paech, Kerstin, Rau, Markus Michael, Seitz, Stella, Weller, Jochen, Zitlau, Roman   +5 more
core   +1 more source

Chlorinated Benzo[1,2‐b:4,5‐c′]dithiophene‐4,8‐dione Polymer Donor: A Small Atom Makes a Big Difference

Advanced Science, 2021
The position of a chlorine atom in a charge carrier of polymer solar cells (PSCs) is important to boost their photovoltaic performance. Herein, two chlorinated D‐A conjugated polymers PBBD‐Cl‐α and PBBD‐Cl‐β are synthesized based on two new building ...
Pengjie Chao, Hui Chen, Mingrui Pu, Yulin Zhu, Liang Han, Nan Zheng, Jiadong Zhou, Xiaoyong Chang, Daize Mo, Zengqi Xie, Hong Meng, Feng He   +11 more
doaj   +1 more source

Stacking non-BPS D-Branes [PDF]

, 2001
We present a candidate supergravity solution for a stacked configuration of stable non-BPS D-branes in Type II string theory compactified on T^4/Z_2.
Bain, Bergman, Bertolini, Brax, David A. Lowe, Duff, Elena Cáceres, Eyras, Gaberdiel, Gaberdiel, Gian Luigi Alberghi, Gibbons, Gregory, Gregory, Horowitz, Kevin Goldstein, Lambert, Lambert, Lozano, Sen, Sen, Sen, Sen, Sen, Stelle, Sudarsky, Zhou   +26 more
core   +2 more sources

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source

A Simultaneous Stacking and Deblending Algorithm for Astronomical Images

, 2010
Stacking analysis is a means of detecting faint sources using a priori position information to estimate an aggregate signal from individually undetected objects. Confusion severely limits the effectiveness of stacking in deep surveys with limited angular
Blanc, Brandt, Brandt, Carilli, Daddi, Dye, Eric Gawiser, Gawiser, Gawiser, Greve, Griffin, Hogg, Ivison, Lin, Marsden, Peter Kurczynski, Serjeant, Taylor, Wang, Webb, Weiß, White   +21 more
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Anisotropic Dynamic Disorder of π‐Stacking and Static Disorder in Organic Electron Transporting Materials with Isomorphic Crystal Structures

Small Structures
In organic semiconductors, charge transport is strongly correlated with intermolecular π–π interactions and the dynamic disorder caused by solid‐state phonon vibrations.
Chae‐Won Lee, Uros Puc, Jeong Hyeon Lee, Na Young Cho, Jong Bum Lee, Yun‐Sang Lee, Jin Chul Kim, Woojin Yoon, Hoseop Yun, Seokhoon Jang, Youngu Lee, Jong H. Kim, Sang Kyu Kwak, Mojca Jazbinsek, O‐Pil Kwon   +14 more
doaj   +1 more source