Results 71 to 80 of about 1,836,247 (186)

Why base-catalyzed isomerization of N-propargyl amides yields mostly allenamides rather than ynamides

Beilstein Journal of Organic Chemistry, 2015
The base-catalyzed isomerization of N-propargylamides or carbamates may furnish N-allenyl compounds (allenamides/allencarbamates) or further evolve to N-alkynyl compounds (ynamides or yncarbamates).
Armando Navarro-Vázquez
doaj   +1 more source

Development of surrogate models for the prediction of the flow around an aircraft propeller

International Journal of Sustainable Energy, 2018
In the present work, the derivation of two surrogate models (SMs) for modelling the flow around a propeller for small aircrafts is presented. Both methodologies use derived functions based on computations with the detailed propeller geometry.
Christina Salpigidou, Dimitris Misirlis, Zinon Vlahostergios, Kyros Yakinthos   +3 more
doaj   +1 more source

sesA: A Program for the Analytic Computation of Solvent‐Excluded Surface Areas**

ChemistryOpen
The surface area of a molecule, an inherent geometric property of its structure, plays important roles in its solvation and functioning. Here we present an accurate and robust program, sesA, for the analytic computation of solvent‐excluded surface (SES ...
Lincong Wang
doaj   +1 more source

Thermal behavior of magnetized blood–CMS hybrid nanofluid with SWCNT and MWCNT suspensions: Prabhakar fractional model

Case Studies in Thermal Engineering
This analysis investigates natural convective (mixed convection) hybrid nanofluid (HNF) flow within a channel by using advanced definitions of fractional operators.
Urwa Shehbaz, Sami Ullah Khan, Aboulbaba Eladeb, Nermeen Abdullah, Chemseddine Maatki, Lioua Kolsi   +5 more
doaj   +1 more source

Efficient and Accurate Computations of Cryogenic Cavitating Flows around Turbopump Inducer [PDF]

, 2014
This paper deals with the numerical computations of cryogenic cavitating flows around turbopump inducer in liquid rocket. Recently, accurate and efficient baseline numerical schemes have been developed for the computations of all-speed two-phase flows ...
김형준, 김현지, 김종암, 민대호   +3 more
core  

Fast and Accurate Geometric Sound Propagation Using Visibility Computations

, 2011
Geometric Acoustics (GA) techniques based on the image-source method, ray tracing, beam tracing, and ray-frustum tracing, are widely used to compute sound propagation paths. In this paper, we highlight the connection between these propagation techniques
Anish Chandak, Dinesh Manocha, Micah Taylor, Lakulish Antani   +3 more
core   +1 more source

Accurate computation of the medial axis of a polyhedron [PDF]

Proceedings of the fifth ACM symposium on Solid modeling and applications, 1999
Tim Culver, John Keyser, Dinesh Manocha
openaire   +1 more source

Geodesic Computations for Fast and Accurate Surface Remeshing and Parameterization

, 2005
In this paper, we propose fast and accurate algorithms to remesh and flatten a genus-0 triangulated manifold. These methods naturally fits into a framework for 3D geometry modeling and processing that uses only fast geodesic computations.
Cohen, Laurent D., Peyré, Gabriel
core   +1 more source

Are accurate computations of the 13C' shielding feasible at the DFT level of theory? [PDF]

J Comput Chem, 2014
Vila JA, Arnautova YA, Martin OA, Scheraga HA.   +3 more
europepmc   +1 more source

Time-Accurate Euler Computations for Rotor Flows

, 1993
Two time accurate schemes for the solution of Euler equations are presented: an explicit residual averaging and an implicit LU-SSOR scheme with inner iterations.
Pahlke, K., Kirchner, A., Blazek, J.
core