Now showing items 31-40 of 252
Microcomputer control of radiochemical processes
(Elsevier, 1985-11)
A system for control of radiochemical processes has been designed and constructed. Control passes through a single 8-bit port (6522 VIA) to up to 64 on-off sensors and 64 on-off switches. The outputs are latched; they are ...
Potentiometric ion- and bio-selective electrodes based on asymmetric cellulose acetate membranes
(Elsevier, 1989)
The potentiometric response properties of ammonium-, carbonate-, and proton-selective electrodes prepared by incorporating appropriate neutral carriers within novel asymmetric cellulose acetate membranes are reported. The ...
Fractal exciton fusion: Simulations on long-range percolation clusters
(Elsevier, 1984-12)
Computer simulations of exciton fusion on percolating clusters were performed for interaction distances N=2, 3, and 4. The data yield slopes less than those expected from superuniversality (f=2/3) at interaction distances ...
The microwave spectrum of argon-phosphorus trifluoride
(Elsevier, 1987-01-23)
The argon-PF3 complex has been prepared in a supersonic expansion of Ar (98%) and PF3 (2%). A Fourier-transform micro-wave spectrometer employing a Fabry-Perot cavity was used to assign 28 rotational transitions. The ...
Homogeneous enzyme-linked competitive binding assay for biotin based on the avidin-biotin interaction
(Elsevier, 1988)
A homogeneous enzyme-linked competitive-binding assay for biotin with glucose-6-phosphate dehydrogenase (G6PDH), is described. This assay is based on the interaction between a G6PDH/biotin conjugate with avidin, a natural ...
The thermodynamics of the divalent metal fluorides. II. Heat capacity of the fast ion conductor BaSnF 4 from 7 to 345 K
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1988-11)
The heat capacity of the fast ion conductor BaSnF 4 was measured over the temperature range 7< T <345 K using adiabatic calorimetry. Our results show that a phase transition is not present. However, an anomalous rise in ...
Electron diffraction studies of hot molecules. II. ‘‘Anharmonic shrinkage effects’’ in SF6, CF4, and SiF4
(The American Institute of Physics, 1982-08-15)
Least squares refinements of diffraction intensities for SF6, CF4, and SiF4 yielded nonbonded internuclear distances that lagged increasingly behind values expected from the bond lengths, the higher the temperature. The ...
A total synthesis of the naturally occurring pyrrolo[2,3-]pyrimidine nucleoside, mycalisine A
(Elsevier, 1988)
The first total synthesis of mycalisine A, a pyrrolo[2,3-]pyrimidine nucleoside, was accomplished by a multi-step synthesis from toyocamycin.
Analysis of the ESR spectrum of manganese (II) in the layered compound Cd2P2Se6
(Elsevier, 1986-07-01)
The Q-band and X-band ESR spectra of Mn2+ in the layered compound Cd2P2Se6 are reported. The Mn2+ is in a trigonal environment coordinated to six selenium atoms. The parameters of the spin hamiltonian have been determined ...