Search
Now showing items 1761-1770 of 1881
Near-infrared imaging polarimetry of bipolar nebulae 1:the BN-KL region of OMC-1
(1991)
New high-spatial-resolution polarization images of the BN-KL region of OMC-1 from 1.25-3.6 microns are presented. At the longer wavelengths these show a centro-symmetric polarization vector pattern, centered mainly on IRc2, ...
The effect of solution composition on microtubule dynamic instability
(1991)
The exchange of tubulin dimer into steady-state microtubules was studied over a range of solution conditions, in order to assess the effects of various common buffer components on the dynamic instability of microtubules. ...
Formation of silicon carbide whiskers and their microstructure
(1991-01-01)
Thermodynamic and kinetic conditions for the formation of SiC whiskers are established. The mechanism of their nucleation and growth are studied and, on this basis, the magnitude of the thermally activated barrier is ...
Algebraic connectivity
(1991)
Boundary-layer temperatures in high accretion rate cataclysmic variables
(1991)
The Zanstra method is used to derive limits on boundary-layer temperatures in eclipsing dwarf novae during outburst and nova-like variables, using the observed He II 1640 and 4686 A recombination lines. It is assumed that ...
Near-infrared imaging polarimetry of bipolar nebulae. 3: R-Mon/NGC-2261
(1991)
High-spatial-resolution polarization vector maps of NGC 2261 at J, H and K show a centrosymmetric pattern, suggesting that it is a near-infrared reflection nebula, illuminated by R Mon. Evidence indicates that R Mon is ...
Computer optimisation of a shaking table
(1991)
This paper describes work undertaken, under the 3rd. EC Raw Materials Programme in collaboration with Carnon Consolidated Ltd. (CCL) and Beralt Tin and Wolfram SA (BTW), on the development and application of a mathematical ...
Opposite-end behaviour of dynamic microtubules
(1991)
Microtubules are dynamic polar structures with different kinetic properties at the two ends. The inherent asymmetry of the microtubule lattice determines that the relationship between the addition reaction of tubulin-GTP ...
New polarimetric observations and a 2 pole model for the cyclotron emission from AM Herculis
(1991)
High signal-to-noise ratio phase dependent linear polarization and intensity data on AM Herculis which show the presence of structured linear pulses in the optical and near IR regions is presented. The data have been ...