Results 31 to 40 of about 461,709 (265)

Further Validation of Quantum Crystallography Approaches

open access: yesMolecules, 2021
Quantum crystallography is a fast-developing multidisciplinary area of crystallography. In this work, we analyse the influence of different charge density models (i.e., the multipole model (MM), Hirshfeld atom refinement (HAR), and the transferable ...
Monika Wanat   +3 more
doaj   +1 more source

Ab Initio Study of Octane Moiety Adsorption on H- and Cl-Functionalized Silicon Nanowires

open access: yesNanomaterials, 2022
Using first-principles calculations based on density functional theory, we investigated the effects of surface functionalization on the energetic and electronic properties of hydrogenated and chlorinated silicon nanowires oriented along the direction ...
Barbara Ferrucci   +5 more
doaj   +1 more source

Sliding charge-density waves in manganites [PDF]

open access: yesNature Materials, 2007
The so-called stripe phase of the manganites is an important example of the complex behaviour of metal oxides, and has long been interpreted as the localisation of charge at atomic sites. Here, we demonstrate via resistance measurements on La_{0.50}Ca_{0.50}MnO_3 that this state is in fact a prototypical charge density wave (CDW) which undergoes ...
Cox, Susan   +4 more
openaire   +5 more sources

Preparation of Acrylamide-based Anionic Polyelectrolytes for Soil Establishment [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2012
Synthetic water soluble acrylamide-based polymers have wide range of ap-plications  in  the  feld  of  soil  establishment  and  non-desertifcation.
Ahmad Rabiee   +2 more
doaj   +1 more source

charge density

open access: yes, 2014
Citation: 'charge density' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.C00988 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +2 more sources

Charge densities and crystal engineering [PDF]

open access: yesActa Crystallographica Section A Foundations of Crystallography, 2011
This chapter discusses the ways in which the present techniques and tools of charge density analysis can contribute to the burgeoning field of crystal engineering. The principal focus is on use of theoretical and experimental charge densities, Hirshfeld surface analysis, as well as the calculation of energies of intermolecular interactions and their ...
openaire   +1 more source

Structural and Electronic Properties of Cation Doping on the Spinel LiMn2O4: a First-Principles Theory

open access: yesInternational Journal of Electrochemical Science, 2016
The structural and electronic properties of cation doping on the spinel LiMn2O4 were investigated by the first-principles theory. The calculated results indicate that due to the formation energy of LiAl0.5Mn1.5O4 is the smallest, the structure of LiAl0 ...
Xing-hua Liang   +4 more
doaj   +1 more source

Understanding the Role of Soft X-ray in Charging Solid-Film and Cellular Electrets

open access: yesNanomaterials, 2022
Solid-film electrets and cellular electrets are defined as promising insulating dielectric materials containing permanent electrostatic and polarizations. High-performance charging methods are critical for electret transducers.
Yue Feng   +5 more
doaj   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

Rheology of Suspensions of TEMPO-Oxidised and Cationic Cellulose Nanofibrils—The Effect of Chemical Pre-Treatment

open access: yesGels
Cellulose nanofibrils (CNFs) are particles with a high aspect ratio. Typically, chemically pre-treated CNFs (containing anionic or cationic charged groups) consist of long fibrils (up to 2 μm) with very low thickness (less than 10 nm). Derived from their
Luís Alves   +5 more
doaj   +1 more source

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