Results 61 to 70 of about 256,202 (345)

First‐Principles Modeling of Solid Solution Softening and Hardening Effects in Al–Mg–Zr–Si Aluminum Alloys

Advanced Engineering Materials, EarlyView.
The role of various alloying elements in face‐centered cubic aluminum on the barrier of a Shockley partial dislocation during its motion is presented. The study aims to understand how alloying atoms such as Mg, Si, and Zr affect the energy landscape for dislocation motion, thus influencing the solid solution hardening and softening in aluminum, which ...
Inna Plyushchay, Zhengqing Wei, Nebahat Bulut, Sibylle Gemming   +3 more
wiley   +1 more source

Steric Effects of Alkyl Ammonium Salts on the Combustion of Exchanged Smectite Clays [PDF]

, 2018
Bomb calorimetry was explored as a new method for determining the cation exchange capacity (CEC) of clays. Smectite clays were modified with several alkyl ammonium salts varying in number of carbons and the spatial orientation of the carbons about the ...
Keith, Celeste A.
core   +1 more source

A combined "electrochemical-frustrated Lewis pair" approach to hydrogen activation: surface catalytic effects at platinum electrodes [PDF]

, 2014
Herein, we extend our “combined electrochemical–frustrated Lewis pair” approach to include Pt electrode surfaces for the first time. We found that the voltammetric response of an electrochemical–frustrated Lewis pair (FLP) system involving the B(C6F5)3 ...
Ashley, Ashley, Binding, Brown, Cauliez, Chapman, Chase, Chatgilialoglu, Compton, Croissant, de Leon, Duñach, Erker, Esteves, Fang, Farrell, Griller, Gritzner, Herrington, Holschumacher, Iwasita, Jutzi, Kolychev, Lawrence, Lawrence, Lawrence, LeSuer, Liu, Lu, Ma, Merino-Jiménez, Ménard, Mömming, Pedersen, Santos, Spies, Srivastava, Stephan, Stephan, Stephan, Stephan, Stephan, Sumerin, Tran, Travis, Welch, Welch, Whited, Zhang   +48 more
core   +2 more sources

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

Hydrogen Transfer from Hantzsch 1,4-Dihydropyridines to Carbon-Carbon Double Bonds under Microwave Irradiation

Molecules, 2002
1,4-Dihydropyridines (DHPs) have been used in the reduction of carbon-carbon double bonds under microwave irradiation without solvent. The efficiency of the reactions is dramatically dependent on the steric effects in the DHPs and on the electronic ...
Jean Jacques Vanden Eynde, Didier Barbry, Guy Cordonnier, Séverine Torchy   +3 more
doaj   +1 more source

Effect of grafting on the binding transition of two flexible polymers

, 2016
We investigate the binding transition of two flexible polymers grafted to a steric surface with closeby end points. While free polymers show a discontinuous transition, grafting to a steric flat surface leads to a continuous binding transition.
Janke, Wolfhard, Tholen, Katharina, Zierenberg, Johannes   +2 more
core   +1 more source

A Vascularized Microphysiological System Reproducing Endochondral Ossification in Vitro to Study Ewing Sarcoma Proliferation and Migration

Advanced Functional Materials, EarlyView.
A biofabricated 3D in vitro model recapitulating endochondral ossification (ECO) is described, mimicking the steps from condensation to chondrogenesis and hypertrophy, culminating with vascularization of the hypertrophic construct. As a model proof of concept application, Ewing Sarcoma cells are seeded in the model, showing modifications in their ...
Maria Vittoria Colombo, Chiara Arrigoni, Tobias Faehling, Antonietta Verrillo, Viviana Secci, Thomas G. P. Grünewald, Giuseppe Talò, Alexandra Kummer, Jorge Gonzalez, Vincenzo De Rosa, Christian Candrian, Andrea Barbero, Florencia Cidre‐Aranaz, Matteo Moretti   +13 more
wiley   +1 more source

Semiempirical and Ab Initio calculation of the molecular structures of substituted N-Benzoylimidazoles

Semina: Ciências Exatas e Tecnológicas, 2001
Possible reasons of low reactivities of some N-(2-X-benzoyl) imidazoles utilising ab initio Hartree-Fock calculations have been studied in imidazole-catalyzed hydrolysis.
Paulo Meneghelli
doaj  

(How) does 1,3,5-triethylbenzene scaffolding work? Analyzing the abilities of 1,3,5-triethylbenzene- and 1,3,5-trimethylbenzene-based scaffolds to preorganize the binding elements of supramolecular hosts and to improve binding of targets

Beilstein Journal of Organic Chemistry, 2012
1,3,5-triethylbenzenes have been widely used as supramolecular templates to organize molecular-recognition elements. It is believed that the steric-gearing effect of the 1,3,5-triethylbenzene template directs the binding elements toward the same face of ...
Xing Wang, Fraser Hof
doaj   +1 more source

Modulation of elasticity and interactions in charged lipid multibilayers: monovalent salt solutions

, 2016
We have studied the electrostatic screening effect of NaCl solutions on the interactions between anionic lipid bilayers in the fluid lamellar phase using a Poisson-Boltzmann based mean-field approach with constant charge and constant potential limiting ...
Belička, Michal, Gupta, Santosh, Lu, Bing-Sui, Pabst, Georg, Podgornik, Rudolf   +4 more
core   +3 more sources