Results 241 to 250 of about 574,212 (298)

Fourier transform mechanical spectroscopy

Journal of Physics D: Applied Physics, 1986
A powerful new experimental method of determining the dynamic mechanical behaviour of viscoelastic materials is described. The method, Fourier transform mechanical spectroscopy (FTMS), consists of superposing and deconvoluting discrete Fourier transforms obtained from a single stress relaxation experiment using a novel sampling scheme.
R G C Arridge, P J Barham
openaire   +1 more source

Mechanical modulated waveguide spectroscopy

Review of Scientific Instruments, 1998
Mechanically modulated waveguide spectroscopy is a technique for measuring simultaneously the thickness modulation and changes in orientation of surface stabilized liquid crystalline cells. The possibilities of this technique are presented for cells filled with a ferroelectric liquid crystal.
A. Fahrwald, H. Skupin, Th. M. Fischer, F. Kremer   +3 more
openaire   +1 more source

Quantum Mechanics and Spectroscopy

2019
This chapter reviews the basic quantum mechanics of spectroscopy, analyzing forms of spectroscopy based on the measurement of energy as an atom or molecule undergoes a change in quantum states. It looks at different aspects of quantum mechanics in order to understand instrumental techniques and analysis involving the interaction of light and matter. It
Robert M. Granger, Hank M. Yochum, Jill N. Granger, Karl D. Sienerth, Robert M. Granger, Hank M. Yochum, Jill N. Granger, Karl D. Sienerth   +7 more
openaire   +1 more source

Vibrational Spectroscopy of Mechanically Compressed Monolayers

Journal of the American Chemical Society, 2003
Sum-frequency spectroscopy has been used to investigate the behavior of self-assembled monolayers in a solid-solid contact. Various alkanethiol layers on gold were observed before, during, and after compression to 660 MPa against a sapphire counterface.
Otto, Berg, David, Klenerman
openaire   +2 more sources

Quantum mechanics and spectroscopy

2013
This chapter addresses quantum mechanics and spectroscopy. Two key ideas emerge from the theory of quantum mechanics: the first is that the electron is described by a wavefunction, and the second is that the energy of the electron is quantized. The wavefunction is important since its square gives the probability density of the electron.
James Keeler, Peter Wothers
openaire   +1 more source

Mechanical Spectroscopy of Quasicrystals

Solid State Phenomena, 2006
The use of mechanical spectroscopy to characterize the quasicrystalline state of solid matter is reviewed. After a general, chronological survey of existing mechanical spectroscopy studies, which include elastic properties as well as various relaxation phenomena between lowtemperature tunneling processes and high-temperature background damping, three ...
openaire   +1 more source

Statistical Mechanics and Spectroscopy

Physics Bulletin, 1975
G Allen and H O Pritchard London: Butterworth 1974 pp x + 140 price £1.90 This book is based on a series of lectures given by the authors to second year chemistry students and is designed, in general, to cater for those taking courses in both physical chemistry and chemical physics.
openaire   +1 more source

Mechanical spectroscopy of colloidal dispersions

Faraday Discussions of the Chemical Society, 1978
The mechanical properties of colloidal dispersions are closely related to their stability parameters. Unfortunately, the rheological characteristics which are normally used, such as viscosity and static elasticity, measure the global behaviour. It is extremely difficult to extract from such characteristics detailed information about the structure ...
Jan Mewis, Gustaaf Schoukens
openaire   +1 more source

Mechanical Spectroscopy of Hyperstabilized Martensites

Solid State Phenomena, 2012
The internal friction of the hyperstabilized martensite demonstrates very low values, both above and below the nominal martensitic transformation temperature, due to a pronounced pinning effect. Over a wide temperature range it is comparable with the level of damping in the parent phase.
Sergey Kustov, R. Santamarta, E. Cesari, K. Sapozhnikov, V. Nikolaev, V. Fedorov, V. Krymov, Jan Van Humbeeck   +7 more
openaire   +1 more source

Spectroscopy and Mechanism in Triboluminescence

Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, 1992
Abstract The presence of C3πu → B3πg emissions of dinitrogen and photoluminescence in triboluminescence spectra provides information about the mechanism of light production.
Linda M. Sweeting, Martha L. Cashel, Marta Dott, Joanne M. Gingerich, Janis L. Guido, Janet A. Kling, Reginald F. Pippin, Michael M. Rosenblatt, Alan M. Rutter, Rebecca A. Spence   +9 more
openaire   +1 more source