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Anfrageverarbeitung und kollaborative verteilte Arbeit in Umgebungen mit unzuverlässigen Knoten
Eine zentralisierte Datenspeicherung und Koordination stellt für viele verteilte Algorithmen einen bedeutenden Flaschenhals hinsichtlich Skalierbarkeit und Zuverlässigkeit dar. Im Folgenden wird ein Ansatz vorgestellt, der u.a. zur Realisierung eines vollständig dezentralen verteilten Webcrawlers eingesetzt wird. Seine wesentlichen Eigenschaften bestehen in Durchsetzung einer Verpflichtung alle...
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We used the modified one finger laparoscopy technique on 100 patients and found it to be successful in 87% of cases. No major complication occurred during or after such operations. However, we think that this technique is accompanied by three important problems: 1) The CO2 gas is lost f1"om the subumbilical incision, 2) A secondary fascial layer is present in some patients, and 3) There i...
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Though the value of a right should be not lower than zero, negative voting premiums often appear in recent empirical evidence. The present paper highlights some possible measurement errors and contemporary proposes a new measure, the vote segment, which incorporates all dividend privileges. Results from Italian non-voting shares listed in the 1999-2008 period show that the more accurate measure...
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The repellency and insecticidal efficacy of Nopikex®, a soap formulation containing 20% diethyl toluamide and 0.5% permethrin, was evaluated against a laboratory colony of phlebotomine sand flies (Lutzomya longipalpis). The repellency of Nopikex soap was also compared with that of a placebo soap against another species (Lu. Youngi) in a forest near Tulua, Valle del Cauca, Colombia. In laborator...
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In this article, we present a complex baseband model for a wideband power amplifier that incorporates carrier frequency dependent amplitude modulation (AM) and phase modulation (PM) (i.e., AM/AM and AM/PM) characteristics in the design process. The structure used to implement the amplifier model is a Wiener system which accounts for memory effects caused by the frequency selective nature of the...
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ژورنال
عنوان ژورنال: MMW - Fortschritte der Medizin
سال: 2006
ISSN: 1438-3276,1613-3560
DOI: 10.1007/bf03364835