Results 21 to 30 of about 3,531,989 (315)

Circuit Theory for Chemical Reaction Networks [PDF]

Phys. Rev. X 13, 021041 (2023), 2022
We lay the foundation of a circuit theory for chemical reaction networks. Chemical reactions are grouped into chemical modules solely characterized by their current-concentration characteristic, as electrical devices by their current-voltage (I-V) curve in electronic circuit theory.
arxiv   +1 more source

Uncertainties in Galactic Chemical Evolution Models [PDF]

, 2016
We use a simple one-zone galactic chemical evolution model to quantify the uncertainties generated by the input parameters in numerical predictions for a galaxy with properties similar to those of the Milky Way.
Côté, Benoit, Fryer, Chris L., Herwig, Falk, Jones, Samuel, O’Shea, Brian W., Pignatari, Marco, Ritter, Christian   +6 more
core   +2 more sources

Matrix models and QCD with chemical potential [PDF]

, 2007
The Random Matrix Model approach to Quantum Chromodynamics (QCD) with non-vanishing chemical potential is reviewed. The general concept using global symmetries is introduced, as well as its relation to field theory, the so-called epsilon regime of chiral
Ambjorn J., Bietenholz W., Bittner E., Fyodorov Y. V., G. AKEMANN, Giusti L., Guhr T., Hasenfratz P., Kanzieper E., Mehta M. L., Sasai Y.   +10 more
core   +2 more sources

Sensitivity analyses of dense cloud chemical models [PDF]

, 2010
Because of new telescopes that will dramatically improve our knowledge of the interstellar medium, chemical models will have to be used to simulate the chemistry of many regions with diverse properties.
Bergin, Cardelli, Caselli, Dickens, E. Herbst, F. Hersant, F. Selsis, Flower, Graedel, Hassel, Indriolo, J. Le Bourlot, Le Bourlot, Le Petit, Lee, Lee, Lepp, McCall, Meyer, Osterbrock, Padovani, Ruffle, S. Guilloteau, Savage, Shalabiea, Spitzer, V. Wakelam, Vasyunin, Vasyunin, Wakelam, Wakelam, Wakelam, Wakelam, Walsh, Webber, Wootten   +35 more
core   +3 more sources

Conceitos de química dos ingressantes nos cursos de graduação do Instituto de Química da Universidade de São Paulo Chemistry concepts held by freshmen students of the Institute of Chemistry, University of São Paulo

Química Nova, 2008
A diagnostic instrument was developed to evaluate the basic chemistry concepts held by freshmen students of the three Chemistry undergraduate courses offered by the University of São Paulo.
Carmen Fernandez, José Otavio Baldinato, Peter W. Tiedemann, Mauro Bertotti   +3 more
doaj   +1 more source

Chemical evolution models with a new stellar nucleosynthesis [PDF]

, 1994
Numerical models for the chemical evolution of the Galaxy have been computed with the new stellar yields published by Maeder (1992). These metallicity dependent yields represent an important improvement in the chemical evolution of galaxies but there are
Giovagnoli, A., Tosi, M.
core   +3 more sources

INFLUENCE OF COMMERCIAL THERMAL TREATMENT ON Eucalyptus grandis Hill ex Maiden WOOD PROPERTIES

Revista Árvore, 2021
This study aimed to evaluate the influence of commercial thermal treatment on Eucalyptus grandis considering its physical, chemical, and mechanical properties.
Carolina Aparecida Barros Oliveira, Karina Aparecida de Oliveira, Julio Cesar Molina, Vinicius Borges de Moura Aquino, André Luis Christoforo   +4 more
doaj   +1 more source

Modification of N-terminal α-amine of proteins via biomimetic ortho-quinone-mediated oxidation

Nature Communications, 2021
Methods for selective modification of the N-terminus of proteins are of high interest, but mostly require specific amino acid residues. Here, the authors report a selective and fast method for N-terminal modification of proteins based on quinone-mediated
Siyao Wang, Qingqing Zhou, Xiaoping Chen, Rong-Hua Luo, Yunxue Li, Xinliang Liu, Liu-Meng Yang, Yong-Tang Zheng, Ping Wang   +8 more
doaj   +1 more source

Modeling and Simulating Chemical Reactions [PDF]

SIAM Review, 2008
Many students are familiar with the idea of modeling chemical reactions in terms of ordinary differential equations. However, these deterministic reaction rate equations are really a certain large-scale limit of a sequence of finer-scale probabilistic models.
openaire   +5 more sources

The chemical evolution of the solar neighbourhood [PDF]

, 2002
Recent models of galactic chemical evolution account for updated evolutionary models of massive stars (with special emphasis on stellar winds) and for the effects of intermediate mass and massive binaries. The results are summarised.
A Heger, AB Underhill, B Paczynski, BD Mason, D Vanbeveren, D Vanbeveren, D Vanbeveren, D Vanbeveren, D Vanbeveren, D Vanbeveren, DB Friend, E Donder De, G Meynet, G Meynet, G Schaller, H Nieuwenhuijzen, H Zeipel Von, I Hachisu, I Iben Jr., J Sollerman, J-C Mermilliod, K Iwamoto, K Nomoto, LR Penny, N Langer, P Petrenz, P Petrenz, RE Dudley, RF Webbink, SE Woosley, SJ Smartt, SO Owocki, T Nugis, W Schmutz, W-R Hamann, W-R Hamann, W-R Hamann   +36 more
core   +4 more sources