Results 21 to 30 of about 349,748 (311)

The Theoretical Calculation of the Cu Isotope Fractionation Effect in Solution/Hydrothermal Solution Systems. [PDF]

open access: yesMolecules
Copper (Cu) is an important transition metal, and its isotopes have important applications in geology, environmental science, soil science, and other fields. Cu isotope fractionation can occur in many natural processes.
Zhang J.
europepmc   +2 more sources

The synthesis, characterization and theoretical study of nano tetrabuthylammonium trichloroiodoaluminate (III)

open access: yesOrbital: The Electronic Journal of Chemistry, 2012
There is provided a nano aluminate complex that has a quaternary ammonium cation. This nano system has an equal molar ratio of Al to N that has been prepared by reaction of an organic salt R+X- such as [(CH3)4NBr], and a Lewis acid such as AlCl3,
shahriar Ghammamy
doaj   +1 more source

Hydrogen in Ag-doped ZnO: Theoretical calculations [PDF]

open access: yesThe Journal of Chemical Physics, 2009
Based on density functional theory calculations, we systematically investigate the behaviors of a H atom in Ag-doped ZnO involving the preference sites, diffusion behaviors, the electronic structures, and vibrational properties. We find that a H atom can migrate to the doped Ag to form a Ag–H complex by overcoming energy barriers of 0.3–1.0 eV.
He, H. Y., Hu, J., Pan, B. C.
openaire   +3 more sources

Synthesis, Crystal Structures, Optical Properties and Theoretical Calculations of Two Metal Chalcogenides Ba2AlSbS5 and Ba2GaBiSe5

open access: yesCrystals, 2018
Two quaternary metal chalcogenides, Ba2AlSbS5 and Ba2GaBiSe5, were successfully synthesized by solid-state reaction in sealed silica tubes. Both of them crystallize in the same orthorhombic space group Pnma, but they appear with obviously different ...
Xiaowen Wu   +4 more
doaj   +1 more source

Study on retaining width of waterproof coal pillar of F22 high angle normal fault in Qianyingzi Coal Mine

open access: yesMeikuang Anquan, 2023
Confined water inrush caused by fault activation induced by coal mining under high in-situ stress is one of the main forms of water damage in deep mining.
WANG Haojie, FANG Jiahu, SUN Ping
doaj   +1 more source

Theoretical Study of Electromagnetic Interference Shielding of 2D MXenes Films

open access: yesMetals, 2018
The advance of research on 2D transition metal carbides, carbonitrides, and nitrides (collectively known as MXenes) has progressed rapidly since the introduction of Ti3C2 in 2011.
Zhenyu Li, Zeyu Wang, Weixin Lu, Bo Hou
doaj   +1 more source

FIELD THEORETIC CALCULATION OF SCALAR TURBULENCE [PDF]

open access: yesInternational Journal of Modern Physics B, 2001
The cascade rate of passive scalar and Bachelor's constant in scalar turbulence are calculated using the flux formula. This calculation is done to first order in perturbation series. Batchelor's constant in three dimension is found to be approximately 1.25. In higher dimension, the constant increases as d1/3.
openaire   +2 more sources

An Investigation of the Frequency and Duration of a Drive Spoon–Dispersed Water Jet and Its Influence on the Hydraulic Performance of a Large-Volume Irrigation Sprinkler

open access: yesAgronomy, 2022
The frequency and duration of drive spoon–dispersed water jet directly influence the water distribution pattern and, further, affect water distribution uniformity.
Pan Tang, Chao Chen
doaj   +1 more source

Discussion: Theoretical Horizons and Calculation [PDF]

open access: yesJournal of Physics: Conference Series, 2014
Reference EPFL-CONF-205200doi:10.1088/1742-6596/571/1/012013View record in Web of Science Record created on 2015-02-20, modified on 2017-12 ...
M Ceriotti   +11 more
openaire   +1 more source

Comparison between experimental results and theoretical calculation results.

open access: yes, 2023
Comparison between experimental results and theoretical calculation results.
Jie Zhang (64655), Xu Wu (318848)
core   +1 more source

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