Now showing items 31-40 of 637
A new two-site model for hydroxyapatite dissolution in acidic media
(Elsevier, 1978-11)
A physical model featuring two distinct types of dissolution sites for hydroxyapatite (HAP) crystals is presented. One of these sites (site No. 1) is associated with dissolution along c axis dislocations of HAP crystals ...
Determination of adrenaline and noradrenaline by resonance Raman spectrometry
(Elsevier, 1976-01)
Aminochromes of adrenaline and noradrenaline show resonance Raman scattering at 1480 and 1430 cm-1 respectively, with Ar+ excitation. Scattering intensity is a linear function of concentration. Detection limits are 1 x ...
Separation of bile acids from neutral lipids on thin-layer chromatograms
(Elsevier, 1974-11-13)
A game to help students comprehend enzyme structure and mechanism of action
(Elsevier, 1976-01)
In defense of the Crank-Nicolson method
(American Institute of Chemical EngineersWiley Periodiocals, Inc., 1970-05)
No Abstract.
Flow equations for graphite
(Elsevier, 1976)
In analyzing erosion of graphite at high strain rate (~107 sec-1) and temperature (~4000[deg]C), it is necessary to have some approximation for the constitutive equation. Data for graphite from static and low strain rate ...
Synthesis of [4.2]cyclophanes
(Elsevier, 1978)
Vinyl -xylylene cross-dimerizes with other xylylene-type intermediates to yield cycloadducts of the [8+6] and [6+6] type. This reaction provides a simple entry to the [4.2]paracyclophane system as well as the analogous ...
Determination of iodoamino acids and inorganic lodide by thin-layer chromatography
(Elsevier, 1970-10)
A method has been presented for the separation of monoiodotyrosine diiodotyrosine, diiodothyronine, triiodothyronine, thyroxine, and inorganic iodide from one another by thin-layer chromatography on silica gel. The solvent ...
Heat capacity of Th(NO3)4[middle dot]5H2O from 5 to 350 K
(Elsevier, 1976-01)
The heat capacity of crystalline Th(NO3)4[middle dot]5H2O has been determined by adiabatic calorimetry primarily to enable evaluation of the standard partial molar entropy and heat capacity of aqueous thorium(IV) ion. No ...