Results 31 to 40 of about 2,719,550 (270)

Chemical Mechanism Solvers in Air Quality Models

Atmosphere, 2011
The solution of chemical kinetics is one of the most computationally intensivetasks in atmospheric chemical transport simulations. Due to the stiff nature of the system,implicit time stepping algorithms which repeatedly solve linear systems of equations ...
John C. Linford, Adrian Sandu, Rolf Sander, Hong Zhang   +3 more
doaj   +1 more source

Effects of thermohaline instability and rotation-induced mixing on the evolution of light elements in the Galaxy : D, 3He and 4He [PDF]

, 2012
Recent studies of low- and intermediate-mass stars show that the evolution of the chemical elements in these stars is very different from that proposed by standard stellar models.
Asplund, Balser, Balser, Balser, Bania, Bennett, Boothroyd, Burles, C. Charbonnel, C. Chiappini, Charbonnel, Charbonnel, Charbonnel, Charbonnel, Charbonnel, Chiappini, Chiappini, Chiappini, Coc, Costa, Cyburt, D. Romano, Dearborn, Denissenkov, Denissenkov, Edmunds, Eggleton, Eggleton, Ekström, Epstein, F. Matteucci, Frogel, Galli, Galli, Geiss, Geiss, Geiss, Gloeckler, Grevesse, Groenewegen, Hirschi, Hirschi, Hogan, Hébrard, Hébrard, Iben, Iwamoto, Jenkins, Kobayashi, Krishnamurti, Lagarde, Larson, Linsky, M. Tosi, Maeder, Marigo, Matteucci, Meynet, N. Lagarde, Oliveira, Palla, Peebles, Pettini, Prantzos, Prodanović, Prodanović, Reeves, Rogers, Romano, Romano, Romano, Rood, Rood, Rood, Rosenblum, Serenelli, Songaila, Sonneborn, Spergel, Steigman, Steigman, Tosi, Traxler, Truran, Ulrich, Vidal-Madjar, Wagoner, Weiss, Zahn   +88 more
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Parametric Kalman filter for chemical transport models

Tellus: Series A, Dynamic Meteorology and Oceanography, 2016
A computational simplification of the Kalman filter (KF) is introduced – the parametric Kalman filter (PKF). The full covariance matrix dynamics of the KF, which describes the evolution along the analysis and forecast cycle, is replaced by the dynamics ...
Olivier Pannekoucke, Sophie Ricci, Sebastien Barthelemy, Richard Ménard, Olivier Thual   +4 more
doaj   +1 more source

The effect of ultrasound treatment in combination with nisin on the inactivation of Listeria innocua and Escherichia coli

Ultrasonics Sonochemistry, 2021
Ultrasound, alone or in combination with natural antimicrobials, is a novel food processing technology of interest to replace traditional food decontamination methods, as it is milder than classical sterilisation (heat treatment) and maintains desirable ...
Katherine M. Costello, Eirini Velliou, Jorge Gutierrez-Merino, Cindy Smet, Hani El Kadri, Jan F. Van Impe, Madeleine Bussemaker   +6 more
doaj   +1 more source

Scaling limits of spatial compartment models for chemical reaction networks

, 2015
We study the effects of fast spatial movement of molecules on the dynamics of chemical species in a spatially heterogeneous chemical reaction network using a compartment model. The reaction networks we consider are either single- or multi-scale.
Pfaffelhuber, Peter, Popovic, Lea
core   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

High School Students’ Mental Models on Chemical Equilibrium

Jurnal Pendidikan Sains, 2019
: Chemical equilibrium knowledge has many abstract concepts that often lead to alternative conceptions and misconceptions. One way that can be used to find out students’ conceptions is to identify their mental models.The purpose of this study was to ...
Hilya Ulinnaja, Subandi Subandi, Muntholib Muntholib   +2 more
doaj   +1 more source

The Pisa Stellar Evolution Data Base for low-mass stars

, 2012
The last decade showed an impressive observational effort from the photometric and spectroscopic point of view for ancient stellar clusters in our Galaxy and beyond.
Degl'Innocenti, S., Dell'Omodarme, M., Moroni, P. G. Prada, Valle, G.   +3 more
core   +1 more source

Comparing matrix models and QCD lattice data with chemical potential [PDF]

, 2003
We present a quantitative analysis of the microscopic Dirac spectrum which is complex in the presence of a non-vanishing quark chemical potential. Data from quenched SU(3) lattice simulations for different volumes V and small values of the chemical ...
Akemann, Akemann, Akemann, Akemann, Akemann, Allton, Ambjørn, Berbenni-Bitsch, D'Elia, de Forcrand, Fodor, Fyodorov, Fyodorov, Gernot Akemann, Shuryak, Stephanov, Tile Wettig, Verbaarschot, Verbaarschot   +18 more
core   +5 more sources