Results 61 to 70 of about 1,357,733 (304)

A Two-Zone Multigrid Model for SI Engine Combustion Simulation Using Detailed Chemistry

Journal of Combustion, 2010
An efficient multigrid (MG) model was implemented for spark-ignited (SI) engine combustion modeling using detailed chemistry. The model is designed to be coupled with a level-set-G-equation model for flame propagation (GAMUT combustion model) for highly ...
Hai-Wen Ge, Harmit Juneja, Yu Shi, Shiyou Yang, Rolf D. Reitz   +4 more
doaj   +1 more source

Review of the global models used within phase 1 of the Chemistry–Climate Model Initiative (CCMI) [PDF]

Geoscientific Model Development, 2017
We present an overview of state-of-the-art chemistry–climate and chemistry transport models that are used within phase 1 of the Chemistry–Climate Model Initiative (CCMI-1).
O. Morgenstern, M. I. Hegglin, E. Rozanov, F. M. O'Connor, N. L. Abraham, H. Akiyoshi, A. T. Archibald, S. Bekki, N. Butchart, M. P. Chipperfield, M. Deushi, S. S. Dhomse, R. R. Garcia, S. C. Hardiman, L. W. Horowitz, P. Jöckel, B. Josse, D. Kinnison, M. Lin, E. Mancini, M. E. Manyin, M. Marchand, V. Marécal, M. Michou, L. D. Oman, G. Pitari, D. A. Plummer, L. E. Revell, D. Saint-Martin, R. Schofield, A. Stenke, K. Stone, K. Sudo, T. Y. Tanaka, S. Tilmes, Y. Yamashita, K. Yoshida, G. Zeng   +37 more
doaj   +1 more source

Solving the CH$_4^-$ riddle: the fundamental role of spin to explain metastable anionic methane

, 2019
When atoms or molecules exist in the form of stable negative ions, they play a crucial role in the gas phase chemistry. Determining the existence of such an ion, its internal energy and its stability are necessary prerequisites to analyze the role of ...
Hinojosa, Guillermo, Ramírez-Solís, Alejandro, Saint-Martin, Humberto, Viguè, Jacques   +3 more
core   +3 more sources

Bunburra Rockhole: Exploring the geology of a new differentiated asteroid [PDF]

, 2017
Bunburra Rockhole is the first recovered meteorite of the Desert Fireball Network. We expanded a bulk chemical study of the Bunburra Rockhole meteorite to include major, minor and trace element analyses, as well as oxygen and chromium isotopes, in ...
Benedix, G.K., Bevan, A.W.R., Bland, P.A., Franchi, I.A., Friedrich, J.M., Greenwood, R.C., Mertzman, S.A., Mittlefehldt, D.W., Perrotta, G.C., Sanborn, M.E., Towner, M.C., Yin, Q.-Z.   +11 more
core   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Large eddy simulation study of ammonia dilute spray flames under MILD conditions

Applications in Energy and Combustion Science
Liquid ammonia has received increasing attention as a carbon-free fuel due to its potential to reduce the cost and size of power generation equipment.
Zhenhua An, Yanhui Song, Jiangkuan Xing, Ryoichi Kurose   +3 more
doaj   +1 more source

Impact of Chemistry–Turbulence Interaction Modeling Approach on the CFD Simulations of Entrained Flow Coal Gasification

Energies, 2020
This paper examines the impact of different chemistry–turbulence interaction approaches on the accuracy of simulations of coal gasification in entrained flow reactors.
Jakub Mularski, Norbert Modliński
doaj   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Evidence of the Development of Pedagogical Content Knowledge Related to Chemical Bonding during a Course for Preservice Chemistry Teachers

Center for Educational Policy Studies Journal, 2020
The impression that many preservice chemistry teachers demonstrate issues in the application of their pedagogical content knowledge in teaching practice, especially in the area of fundamental chemistry topics, served as motivation for changes to the ...
Roko Vladušić, Robert Bucat, Mia Ožić   +2 more
doaj   +1 more source