Zusammenfassung Ein multiskaliger Ansatz zur Lebensdauerabschätzung von Wälzlagern wird vorgestellt und auf Innenringe Zylinderrollenlagern des Typs NU 1006 angewendet. Aus einer Systemmodellierung der Makroebene werden die im Wälzkontakt wirkenden Kräfte bestimmt. Die mikroskaligen Kontaktsimulationen erfolgen in einem Halbraum-Kontaktmodell. Spannungen dem Innenring unter Berücksichtigung pla...

The management of sporadic vestibular schwannoma (VS) has evolved in the last decades. The aim of this study was to analyse the evolution in surgical outcomes of VSs operated by a neurotological team between 1990 and 2006 by different approaches. A monocentric retrospective review of medical charts of 1006 patients was performed. In order to assess eventual changes and progress, the 17-years pe...

I describe a method for measuring high-density lipoprotein phospholipids. Magnesium chloride and dextran sulfate are used to precipitate all low-density and very-low-density lipoproteins. The supernate contains only high-density lipoproteins, the phospholipid concentration of which is determined by an enzymic method. The precision of the method (CV) is 2.35% (10 repeated assays), and the mean v...

This paper analyses the performance of the ISODE stack and of the convergence protocol between OSI TP0 and TCP defined in the RFC 1006. The measurements were carried out using a newly developed software monitor, which allows to run various experiment types. Measurement results show a significant performance gap between TP0 and TCP. To bridge this gap we introduce an algorithm to adjust the wind...

Universi ty of Sheffield, Sheffield, U.K. The author would like to acknowledge the financial support provided by the British Academy, Arts and Hum anities Research Board. Many of the points made with regard to the law of tort are equally applicable to its civil law equ ivalent, i.e., the law of de lict. The following labels are also used by Kennedy and Grubb. S ee I. Kennedy & A. G rubb , Medic...