3,618 research outputs found
Avanzini, Alessandra: Corpus of South Arabian Inscriptions I–III. Qatabanic, Marginal Qatabanic, Awsanite Inscriptions
Review
Postscript to Edward Ullendorff’s Article in AETHIOPICA 5 (2002), pp. 67–70: “An Ethiopic Text in a Volume to Celebrate the Congress of Vienna, 1814–15”
Miscellaneous Article
Äthiopische Inschriftenfragmente aus der himjarischen Hauptstadt Ẓafār
Up to now eight fragmentary Ethiopic inscriptions have been discovered in South Arabia, dating from the time immediately after the year 525 A.D. when the Yemen was conquered by the Abyssinians. Three of these fragments, among them a hitherto unpublished text, were found in the Himyarite capital Ẓafār and are parts of reports of the deeds of the Ethiopian King Kāleb. The scanty informations which can be gained from these fragmentary Ethiopic inscriptions share common features with events which are known from other contemporary epigraphic documents and from hagiographic sources in various languages
Treatise on Invertebrate Paleontology, Part W, conodonts, conoidal shells, worms, trace fossils: comments and additions
18 p., 21 fig.http://paleo.ku.edu/contributions.htm
Mesoscopic description of the annealed Ising model and Multiplicative noise
A new type of Langevin equation exhibiting a non trivial phase transition
associated with the presence of multiplicative noise is introduced. The
equation is derived as a mesoscopic representation of the microscopic annealed
Ising model (AIM) proposed by Thorpe and Beeman, and reproduces perfectly its
basic phenomenology. The AIM exhibits a non-trivial behavior as the temperature
is increased, in particular it presents a disorder-to-order phase transition at
low temperatures, and a order-to-disorder transition at higher temperatures.
This behavior resembles that of some Langevin equations with multiplicative
noise, which exhibit also two analogous phase transitions as the
noise-amplitude is increased. By comparing the standard models for
noise-induced transitions with our new Langevin equation we elucidate that the
mechanisms controlling the disorder-to-order transitions in both of them are
essentially different, even though for both of them the presence of
multiplicative noise is a key ingredient.Comment: Submitted to Phys. Rev.
Ferrofluids as thermal ratchets
Colloidal suspensions of ferromagnetic nano-particles, so-called ferrofluids,
are shown to be suitable systems to demonstrate and investigate thermal ratchet
behavior: By rectifying thermal fluctuations, angular momentum is transferred
to a resting ferrofluid from an oscillating magnetic field without net rotating
component. Via viscous coupling the noise driven rotation of the microscopic
ferromagnetic grains is transmitted to the carrier liquid to yield a
macroscopic torque. For a simple setup we analyze the rotation of the
ferrofluid theoretically and show that the results are compatible with the
outcome of a simple demonstration experiment.Comment: 4 pages, 3 figures, corrected version, improved figures, to be
published in Phys. Rev. Let
North Atlantic 2001 - Part 4 Cruise No. 50, Leg 4 16 July – 12 August 2001, Reykjavik – Hamburg
Визначення кількості рослинних антиоксидантів для захисту гірких хмелевих речовин від окисної деструкції
Досліджено кінетику окиснення гірких речовин водного розчину екстракту хмелю у прискорених умовах з різною концентрацією антиоксидантів із рослинної сировини. Визначено ефективну концентрацію антиоксидантів із кори дубу, трави звіробою та трави м'яти.Kinetics of bitter matters in aquatic solution of hope extract in speed-up terms with different concentration of antioxidants from the digister are investigated. Certainly effective concentration of antioxidants from the bark oak, st-john's-wort herbares and mint herbares are determinated
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