Results 301 to 310 of about 1,342,790 (350)
Some of the next articles are maybe not open access.
Heat Transfer Characterization of Metallic Foams
Industrial & Engineering Chemistry Research, 2005Gas−solid heat transfer coefficients were determined in open-celled metal foams as part of a study aimed at evaluating the application of metal foams as catalyst supports in gas−solid catalytic processes with short contact times and high reaction rates, typically controlled by diffusional mass transport.
GIANI, NELSON LEONARDO +2 more
openaire +2 more sources
Metal-Catalysed Transfer Hydrogenation of Ketones
Topics in Current Chemistry, 2016We highlight recent developments of catalytic transfer hydrogenation of ketones promoted by transition metals, while placing it within its historical context. Since optically active secondary alcohols are important building blocks in fine chemicals synthesis, the focus of this review is devoted to chiral catalyst types which are capable of inducing ...
Bogdan, Štefane, Franc, Požgan
openaire +2 more sources
Helium II Transfer on Metal Surfaces
Nature, 1950ONE of the most striking features of the film flow in liquid helium II is provided by the fact that the rate of transfer seems to be largely independent of the experimental conditions1. It was thought for some time that the rate was influenced by the geometrical shape of the transfer vessel, or by a temperature gradient in the film2, or by small ...
K, MENDELSSOHN, G K, WHITE
openaire +2 more sources
Metallic film transfer during metal-ceramic unlubricated sliding
Wear, 1989Abstract The friction and wear characteristics of metallic materials in sliding contact with oxide ceramics were examined, using a pin-on-plate configuration and reciprocating motion. Friction was monitored continuously and wear rate was evaluated by microscopic measurements of worn pin scars.
G.W. Stachowiak +2 more
openaire +1 more source
Metal transfer measurements in gas metal arc welding
Journal of Physics D: Applied Physics, 2001The present work reports results obtained using combined laser shadowing and cross correlation techniques to investigate the metal transfer process. Experimental results of the droplet size and velocity of 0.9 mm and 1.2 mm wires from the globular region to the spray transfer region are presented.
Q Lin, X Li, S W Simpson
openaire +1 more source
Journal of Applied Physics, 1952
A new theory of metal transfer and wear is suggested in this paper. The essence of the theory is as follows: Metal transfer and wear take place at points of actual contact. The interfaces of the high spots that actually make contact are roughened as the result of plastic deformation when they carry normal load.
openaire +1 more source
A new theory of metal transfer and wear is suggested in this paper. The essence of the theory is as follows: Metal transfer and wear take place at points of actual contact. The interfaces of the high spots that actually make contact are roughened as the result of plastic deformation when they carry normal load.
openaire +1 more source
Photoinduced Metal-to-Metal Charge Transfer toward Single-Chain Magnet
Journal of the American Chemical Society, 2010Single-chain magnets (SCMs) that exhibit slow relaxation of their magnetization are attracting considerable attention. To tune the properties of such materials with external stimuli such as light, heat, and pressure is a challenge. Through the exploitation of light and heat induced transformation between diamagnetic Fe(II)(LS)(mu-CN)Co(III)(LS) (LS ...
Tao, Liu +3 more
openaire +2 more sources
Controlling the electron transfer mechanism in metal–molecules–metal junctions
Electrochimica Acta, 2005We show how the mechanism of electron transfer through molecules can be switched between different regimes by using Hg-based metal–molecules–metal junctions. The junctions are easy to assemble and allow for hosting of self-assembled monolayers (SAMs) of a large variety of molecular structures.
E. TRAN +3 more
openaire +2 more sources
1966
Publisher Summary This chapter focuses on certain fundamental aspects of forced convection heat transfer in symmetrical ducts that are of special interest when the fluid is a liquid metal. Compared to the nonmetallic liquids, the combination of large thermal conductivity, small vapor pressure, and extensive temperature range over which they remain in
openaire +1 more source
Publisher Summary This chapter focuses on certain fundamental aspects of forced convection heat transfer in symmetrical ducts that are of special interest when the fluid is a liquid metal. Compared to the nonmetallic liquids, the combination of large thermal conductivity, small vapor pressure, and extensive temperature range over which they remain in
openaire +1 more source
Heat Transfer in Liquid Metals
Journal of Fluids Engineering, 1958Abstract The problem of heat transfer in liquid metals is studied for the case of a fully developed turbulent flow in cylindrical pipes of constant diameter, the fluid under consideration being heated (or cooled) by a constant and uniform heat input at the wall. In the analysis, the similarity theory between heat and momentum transfer is
P. S. Lykoudis, Y. S. Touloukian
openaire +1 more source