Now showing items 1011-1020 of 1043
Interfacial pattern formation far from equilibrium
(Elsevier, 1987)
Over the past few years diffusion-controlled systems have been shown to share a common set of interfacial morphologies. The singular nature of the microscopic dynamics of surface tension and kinetic growth far from equilibrium ...
High‐pressure 57Fe Mössbauer study of Fe3O4 at 298 K
(The American Institute of Physics, 1987-04-15)
At 298 K, 57Fe Mössbauer spectra of Fe3O4 exhibit an increase in complexity with increasing pressure in the range 1×105 to 5×109 Pa. There is an incipient splitting of the B‐site pattern into two components with relative ...
Tunable laser Stark-difference spectra of CD3OH
(Elsevier, 1981-09)
We present Doppler resolution limited spectra of the P(J) and R(J) multiplets for J [less, double equals] 10 of the 10-[mu]m C---O stretch band of 12CD316OH using a tunable diode laser. Relative frequencies within the ...
Synthesis of a high specific activity 125I-labeled analog of PK 11195, potential agent for SPECT imaging of the peripheral benzodiazepine binding site
(Elsevier, 1989)
The peripheral benzodiazepine binding site ligand PK 11195 has been 125I-labeled by direct displacement of aromatic chlorine under solid-state conditions in 50-76% radiochemical yield and >94% radiochemical purity. ...
Pulsed laser desorption method for volatilizing thermally labile molecules for supersonic jet spectroscopy
(The American Institute of Physics, 1988-04)
A technique using pulsed laser desorption is described as a means of volatilizing nonvolatile and thermally labile molecules into the gas phase for entrainment in supersonic jet expansions. By carefully controlling the ...
Proposed new reactor-activated positron source for intense slow e+ beam production
(Elsevier, 1988-03-01)
A novel method is suggested for producing a new positron (e+) emitting isotope in a nuclear reactor with application to slow e+ beams. The initial radiated sample is 124Xe which is transformed to 126I by two neutron ...
Asymmetry in the angular distribution of inclusive [logical and] baryons from e+e- annihilations at GeV
(Elsevier, 1986-12-04)
A forward-backward asymmetry A, consistent with that expected from the [gamma]-Z0 interference term in the process , is observed in the laboratory production angular distribution of high-momentum [logical and] baryons. The ...
Retractable carbon fibre targets for measuring beam profiles at the SLC collision point
(Elsevier, 1989-06-15)
Retractable targets of carbon fibres with nominal diameters of 30, 7 and 4.5 [mu]m have been in use at the collision point of the SLC (the SLAC Linear Collider). The target mechanism is compatible with the Mark II detector ...
Positive displacement vacuum‐sweep dispenser for small particles
(The American Institute of Physics, 1983-12)
A dispenser was developed for feeding small particles into a laboratory burner at a very constant flow rate. A positive displacement of a continuously replaced volume of particles is employed combined with a sonic ejector. ...
Observations on horizontal symmetries and flavor changing neutral currents
(Elsevier, 1982-04-26)
We present a detailed study of the possibility of having a horizontal gauge symmetry, in addition to SU(3)c x SU(2)L x U(1). Grand unification is not used as a constraint. We concentrate on the horizontal group SU(3)H. ...