161,459 research outputs found
Fabrication of high temperature surface acoustic wave devices for sensor applications
No full textSurface acoustic devices have been shown to be suitable not only for signal processing but also for sensor applications. In this paper high temperature surface acoustic wave devices based on gallium orthophosphate have been fabricated, using a lift-off technique and tested for high frequency applications at temperatures up to 600 ºC. The measured S-parameter (S11) has been used to study the mass loading effect of the platinum electrodes and turnover temperature of GaPO4 with a 5? cut. The analysis of these results shows that the mass loading effect can be used to predict the desired resonant frequency of the SAW devices. Also two different adhesion layers for Pt metallisation were studied. Our results show that Zirconium is a more suitable under layer than Titanium
Contributo dell’agobiopsia epatica nella risoluzione di alcuni problemi di Chirurgia d’Urgenza
No full textIl sondaggio peritoneale nella diagnostica dell’addome acuto : 15 anni di esperienza
No full textPeritoneal lavage is a quick, simple and efficient measure. It is a most important examination that comes directly after resuscitation, clinicl and radiological examination. It is indicated in cases of abdominal trauma, multiple injuries and acute abdominal syndrome. by the correct evaluation of its results, early surgical intervention is granted and a final diagnosis can be established, thus preventing frequently unnecessary or delayed laparotomy. peritoneal lavage therefore represents the most highly recommended procedure in cases of acute abdomen
Prof. Th. W. Adorno and the author Hans Erich Nossack.
No full textProf. Th. W. Adorno and the author Hans Erich Nossack at a reception of Insel Verlag, Buchmesse Frankfurt 1966LB
The Buff and Blue: Vol. 8, no. 7 (1900: Apr.)
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Previous issue date: 1900-0
The Buff and Blue: Vol. 8, no. 4 (1900: Jan.)
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Previous issue date: 1900-0
The Buff and Blue: Vol. 8, no. 3 (1899: Dec.)
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Previous issue date: 1899-1
The Buff and Blue: Vol. 8, no. 6 (1900: Mar.)
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Previous issue date: 1900-0
The Buff and Blue: Vol. 8, no. 8 (1900: May)
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Previous issue date: 1900-0
The Buff and Blue: Vol. 8, no. 5 (1900: Feb.)
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Previous issue date: 1900-0
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