Zobrazeno 1 - 10
of 125
pro vyhledávání: '"Ch. Hahn"'
Publikováno v:
Nova Hedwigia. 71:265-270
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. 105:113-117
Laser ablated samples of poly(ether imide) were analyzed by XPS-imaging and by small area X-ray photoelectron spectroscopy (XPS). XPS-imaging was capable of detecting concentration variations of the order of 1.5% and revealed a relatively homogeneous
Publikováno v:
The Journal of Physical Chemistry A. 103:4855-4860
The photochemical decomposition of substituted 1,5-diaryl-3-alkyl-pentazadiene monomers and polymers induced by UV irradiation with a pulsed excimer laser was monitored by UV-vis spectroscopy. The net photochemical reaction proceeds in an overall one
Publikováno v:
The European Physical Journal B. 7:1-4
Clean, ordered, and stoichiometric GaN\(\) surfaces are obtained after exposure to a Ga-flux followed by annealing in ultrahigh vacuum (UHV), after desorption of a Ga layer deposited at room-temperature or after nitrogen ion-bombardment and annealing
Publikováno v:
Langmuir. 14:6871-6878
The photoinduced optical anisotropy (POA) of novel aqueous azo dye systems which form chromonic mesophases upon addition of methanol or sodium chloride was investigated. The phases were characterized between crossed polarizers. For further characteri
Publikováno v:
Applied Surface Science. :899-904
The growing field of microtechnology induces an increasing demand for affordable functional materials. Several strategies exist for improving the ablation behaviour of standard polymers, e.g., doping with a chromophore. Another possibility is the syn
Autor:
Ch. Busch, Heinz Handels, F. Seibert, J. Miehe, E. Rinast, V. Kühn, A. Will, Ch. Roßmanith, Ch. Hahn, S.I. Pöppl, José L. Encarnação
Publikováno v:
Computer Methods and Programs in Biomedicine. 52:175-183
The siftware systen JAMEDIN (Kooperatives Arbeiten und MEdizinische Diagnostik auf Innovativen Netzen) is a multimedia telemedicine system for exchange, cooperative diagnostics, and remote analysis of digital medical image data. It provides component
Publikováno v:
Tenside Surfactants Detergents. 33:209-213
Publikováno v:
Zeitschrift f�r Physik B Condensed Matter. 86:133-138
CaCl2 undergoes a second-order proper ferroelastic phase transition from the tetragonal rutile type to the orthorhombic calcium-chloride type structure atT c ≈490 K. The transition is of the optical type and induced by an order parameter ofB 1g sym
Autor:
Ch. Hahn, H.-G. Unruh
Publikováno v:
Physical Review B. 43:12665-12667
The phase transition of ${\mathrm{CaBr}}_{2}$ at about 780 K can be classified as a second-order proper ferroelastic one of the optical type that is induced by an order parameter of ${\mathit{B}}_{1\mathit{g}}$ symmetry. We wish to point out that x-r