Results 131 to 140 of about 793,110 (397)

Sanitary-epidemiological assessment of quality of atmospheric air in Moscow

Analiz Riska Zdorovʹû, 2016
The results of the comparative assessment of the sanitary and epidemiological quality of the ambient air in Moscow and the Russian Federation, that demonstrate a decrease of the air pollution level in 2014 in comparison with 2012, both in Moscow and in ...
E.E. Andreeva
doaj   +1 more source

Combining Metal Additive Manufacturing and Casting Technology: High Performance Cooling Channels for Electric Powertrain Components

Advanced Engineering Materials, EarlyView.
When realized as inserts in high‐pressure die casting, aluminum cooling channels for electric powertrain components and similar applications typically require a stabilizing filler to survive the process. The present study investigates relinquishing this filler using additively manufactured inserts promising performance improvements.
Dirk Lehmhus, Gefei Li, Martin Czekalla, Leonardo Fernandes Gomes, Christoph Pille, Hermann Pleteit, Adrian Struss, Keno Toussaint, Andre Irretier, Münip Dalgic   +9 more
wiley   +1 more source

Loop integration results using numerical extrapolation for a non-scalar integral

, 2004
Loop integration results have been obtained using numerical integration and extrapolation. An extrapolation to the limit is performed with respect to a parameter in the integrand which tends to zero. Results are given for a non-scalar four-point diagram.
Berntsen, De Ridder, E. de Doncker, F. Yuasa, Ferroglia, Fujimoto, Higham, J. Fujimoto, J. Van Voorst, K. Kaugars, Kahan, L. Cucos, Piessens, Wynn, Y. Shimizu   +14 more
core   +1 more source

On the optimization of an extrapolation method

Linear Algebra and its Applications, 1984
AbstractWe consider an extrapolation method, based on a linear stationary iterative method of first degree, for the numerical solution of the linear system Au=b. We obtain upper bounds for the minimum spectral radius of the extrapolation method as well as good optimum values for the extrapolation parameter.
openaire   +3 more sources

Evaluating Dielectric Properties for Semicrystalline Thermoplastics to Analyze the Thermal and Rheological Properties in Laser‐Based Powder Bed Fusion of Plastics

Advanced Engineering Materials, EarlyView.
This study aims to establish a link between the dielectric properties of polyamide 12 (PA12) and its thermal and rheological properties using dielectric analysis (DEA). A standardized methodology is introduced to determine melting and crystallization temperatures.
Benedikt Burchard, Joseph Hofmann, Katrin Wudy   +2 more
wiley   +1 more source

An advanced method of interpolation of short-focus electron beams boundary trajectories using higher-order root-polynomial functions and its comparative study

Sistemnì Doslìdženâ ta Informacìjnì Tehnologìï
The comparison of three advanced novel methods for estimating the boundary trajectory of electron beams propagated in ionized gas, including lower-order interpolation, self-connected interpolation, and extrapolation, as well as higher-order interpolation,
Igor Melnyk, Alina Pochynok, Mykhailo Skrypka   +2 more
doaj   +1 more source

A converse extrapolation theorem for translation invariant operators [PDF]

arXiv, 1999
We prove the converse of Yano's extrapolation theorem for translation invariant operators.
arxiv  

Removing Homocoupling Defects in Alkoxy/Alkyl‐PBTTT Enhances Polymer:Fullerene Co‐Crystal Formation and Stability

Advanced Functional Materials, EarlyView.
PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu, Jochen Vanderspikken, Paola Mantegazza, Stefania Moro, Mouna Hamid, Sigurd Mertens, Niko Van den Brande, Laurence Lutsen, Vincent Lemaur, David Beljonne, Giovanni Costantini, Koen Vandewal, Bruno Van Mele, Wouter Maes, Bart Goderis   +14 more
wiley   +1 more source

Economic convergence of Central and Eastern European countries in the European Union

Political Research Exchange
Eight Central and Eastern European (CEE) countries joined the European Union in 2004, and three later joined, aiming to align with the EU's average economic development. The main objective of this study is to assess the economic development status of CEE
Török László
doaj   +1 more source

Estimates for singular integrals and extrapolation [PDF]

arXiv, 2007
We prove a sharp Lp estimate for a singular Radon transform according to a size condition of its kernel, which is useful for extrapolation.
arxiv