Results 21 to 30 of about 1,294,115 (342)

Metal-ligand cooperativity enables zero-valent metal transfer. [PDF]

open access: yesChem Sci
Group 13 aminoxy complexes, (L)E(TEMPO)3 (TEMPO = 2,2,6,6-tetramethylpiperidine 1-oxyl; L = THF (tetrahydrofuran) or Py (pyridine); E = Al, Ga, In), display ambiphilic reactivity with H2 and function as synthons for the preparation of materials.
Riu MY, Shan JR, Houk KN, Nava M.
europepmc   +6 more sources

Theoretical Study of Heterogeneous Electronic Transition Rate at the Metal/ Ionic Liquid Interface Using Quantum Theory

open access: yesJournal of Kufa-Physics, 2020
The purpose of this research is study the heterogeneous electronic transition through metal/liquid interface using simple model. The kinetic of electron transfer phenomenon discussion using postulate of quantum transition theory.
B. Alshafaay   +2 more
doaj   +1 more source

Structure and Metal Binding Properties of ZnuA, a Periplasmic Zinc Transporter from \u3cem\u3eEscherichia coli\u3c/em\u3e [PDF]

open access: yes, 2008
ZnuA is the periplasmic Zn2+-binding protein associated with the high-affinity ATP-binding cassette ZnuABC transporter from Escherichia coli. Although several structures of ZnuA and its homologs have been determined, details regarding metal ion ...
Bennett, Brian   +9 more
core   +2 more sources

Comparison on the heat transfer performance and entropy analysis on miniature loop thermosyphon with screen mesh wick and metal foam

open access: yesCase Studies in Thermal Engineering, 2022
Comparison on the heat transfer performance (HTP) of copper screen mesh wick and metal foam inserted evaporator section of miniature loop thermosyphon is experimentally investigated.
Stephen Manova   +7 more
doaj   +1 more source

Numerical Study on Thermo-Hydraulic Performances of Hybrid Nanofluids Flowing through a Corrugated Channel with Metal Foam [PDF]

open access: yesJournal of Heat and Mass Transfer Research, 2023
In this study, a novel design was proposed for enhancing heat transfer in a channel with metal foam, corrugated walls, and hybrid nanofluids. The numerical analysis of hybrid nanofluids (MWCNTs+TiO2) with DW (distillate water) as the base fluid was ...
Moslem Abrofarakh, Hamid Moghadam
doaj   +1 more source

Relationship Between Metal Vapor in Arc and Droplet Transfer Mode in GMAW

open access: yesTaiyuan Ligong Daxue xuebao, 2022
The relationship between metal vapor in arc and droplet transfer mode in GMAW was reviewed. The results show that when welding with high current and corresponding welding parameters and different shielding gases, the conductivity of the vapor in arc ...
Xian SUN
doaj   +1 more source

A catalytic cycle for oxidation of tert-butyl methyl ether by a double C−H activation-group transfer process [PDF]

open access: yes, 2008
A square-planar, iridium(I) carbene complex is shown to effect atom and group transfer from nitrous oxide and organic azides, releasing the corresponding formate or formimidate and an iridium(I)−dinitrogen adduct.
Grubbs, Robert H., Whited, Matthew T.
core   +2 more sources

Numerical simulation of arc plasma and molten metal behavior in gas metal arc welding process

open access: yesJournal of Fluid Science and Technology, 2018
In this study, to make clear the phenomena of the gas metal arc welding process more deeply, a simulation model including both the arc plasma and the metal transfer phenomena is constructed and influence of the arc current is numerically investigated ...
Yosuke OGINO   +2 more
doaj   +1 more source

Thermal performance enhancement of a heat exchanger using metal chain as a novel turbulator [PDF]

open access: yes, 2021
Enhancing heat transfer in a heat exchanger system is critical to many industrial applications. There are many problems that require in-depth studies to find solutions.
Ghitheeth, Ali Hussein
core  

Asymmetric Cooling Process for Towing Hooks Forgings

open access: yesJournal of Machine Engineering
The essence of the new solution is the implementation of asymmetric cooling technology for forgings made of 38MnVS6 and 30MnVS6 steel in order to homogenize the mechanical properties through precipitation hardening.
Jarosław Bartnicki   +3 more
doaj   +1 more source

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