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1	Analýza odvalování rolny na čepu turbodmýchadla / Rolling Analysis of Turbocharger Pin Roller Pazour, Martin January 2013 (has links) The subject of the diploma thesis is a description of movement of a roller which is a part of turbocharger. The diploma thesis is created in cooperation of the research department of Honeywell in Brno. The thesis consists of review concerning operating of turbochargers and possibilities of solving contact problems. Then static and dynamic conditions in contact are treated in the following part. Contact pressures are generated using numerical simulation in Ansys software. In the conclusion sizes and coefficients of friction which are recommended as the most suitable to achieve minimal wear of the components in contact.
2	Direct observation and characterisation of 3-azido-2H-azirines: postulated, but highly elusive intermediates Weigand, Kevin, Singh, Neeraj, Hagedorn, Manfred, Banert, Klaus 29 March 2017 (has links) (PDF) For the first time, successful synthesis of an unknown class of compounds, 3-azido-2H-azirines, which are implicated as highly reactive intermediates in the thermolysis of the corresponding 1,1-diazidoethenes, has been performed. These elusive heterocycles have been detected and characterised by low-temperature NMR and in situ IR spectroscopy. Even the parent compound, 3-azido-2H-azirine, has been observed via low-temperature photolysis of 1,1-diazidoethene, as a highly reactive species with a half-life period of only 12 min at −40 °C. / Dieser Beitrag ist aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich. Azide Cycloadditionsreaktionen heterocyclische Verbindungen Infrarot-Spektroskopie Kernmagnetische Resonanzspektroskopie kurzlebige Intermediate Photochemie Ringspannung azides cycloaddition reactions heterocyclic compounds IR spectroscopy NMR spectroscopy photochemistry ring strain short-lived intermediates ddc:547 Azide Heterocyclische Verbindungen Infrarotspektroskopie NMR-Spektroskopie Fotochemie Ringspannung
3	Direct observation and characterisation of 3-azido-2H-azirines: postulated, but highly elusive intermediates Weigand, Kevin, Singh, Neeraj, Hagedorn, Manfred, Banert, Klaus 29 March 2017 (has links) For the first time, successful synthesis of an unknown class of compounds, 3-azido-2H-azirines, which are implicated as highly reactive intermediates in the thermolysis of the corresponding 1,1-diazidoethenes, has been performed. These elusive heterocycles have been detected and characterised by low-temperature NMR and in situ IR spectroscopy. Even the parent compound, 3-azido-2H-azirine, has been observed via low-temperature photolysis of 1,1-diazidoethene, as a highly reactive species with a half-life period of only 12 min at −40 °C. / Dieser Beitrag ist aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich. info:eu-repo/classification/ddc/547 ddc:547

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