Results 61 to 70 of about 127,471 (270)

Aziridinierung eines einzelnen Kohlenstoffatoms in Alkenen mittels Energietransferkatalyse

Angewandte Chemie, EarlyView.
Im Gegensatz zur traditionellen Alken‐Aziridinierung über (formalen) Nitren‐Transfer berichten wir hier über eine Strategie zur intermolekularen Aziridinierung eines einzelnen Alken‐Kohlenstoffatoms bei zusätzlicher Funktionalisierung der anderen Position. Durch Energietransfer‐ (EnT‐)Katalyse werden Alkenylboronate und ‐silane in reaktive Intermediate
Fritz Paulus, Corinna Heusel, Felix H. Wessels, Bünyamin Sikora, Maik G. Niedziella, Kilian van der Beck, Constantin G. Daniliuc, Frank Glorius   +7 more
wiley   +1 more source

Granulomatose de Wegener — a propósito de um caso clínico

Revista Portuguesa de Pneumologia, 2003
RESUMO: A granulomatose de Wegener (GW) é uma vasculite rara que atinge preferencialmente o tracto respiratório superior, o pulmão e os rins, embora possa apresentar-se de uma forma multissistémica.Os autores apresentam um caso clínico de GW, a sua ...
Sandra André, José Manuel Correia, Margarida Cancela de Abreu   +2 more
doaj   +1 more source

Greenhouse Gas Emissions and Cost of Debt: Evidence From European Firms Under Mandatory and Voluntary Disclosure

Business Strategy and the Environment, EarlyView.
ABSTRACT Considering the growing attention to sustainability and the increasing regulatory pressure in the European landscape, this study evaluates whether greenhouse gas emissions affect firms' cost of debt. A panel regression was conducted from 2021 to 2024 on two samples of European firms.
Daniela Cicchini, Pasquale De Luca, Salvatore Principale, Chiara Signore   +3 more
wiley   +1 more source

Cytomegalovirus retinitis presenting as vasculitis in a patient with Wegener’s granulomatosis

Clinical Ophthalmology, 2008
Paris G Tranos1, Ilias Georgalas2, Panagiota Founti1, Ioannis Ladas21Papageorgiou University Hospital, Thessaloniki, Greece; 2Department of Ophthalmology, “G.Genimatas” Hospital, Athens, GreecePurpose: To present an unusual case of ...
Paris G Tranos, Ilias Georgalas, Panagiota Founti, Ioannis Ladas   +3 more
doaj  

The Wegener-Bergeron-Findeisen process – Its discovery and vital importance for weather and climate

Meteorologische Zeitschrift, 2015
The Wegener-Bergeron-Findeisen process refers to the rapid growth of ice crystals at the expense of surrounding cloud droplets, which frequently occurs in atmospheric mixed-phase clouds.
Trude Storelvmo, Ivy Tan
doaj   +1 more source

Learning from Alfred Wegener’s pioneering field observations in West Greenland after a century of climate change

Scientific Reports, 2023
The cryosphere in Greenland is currently undergoing strong changes. While remote sensing improves our understanding of spatial and temporal changes across scales, particularly our knowledge of conditions during the pre-satellite era is fragmented ...
J. Abermann, B. Vandecrux, S. Scher, K. Löffler, F. Schalamon, A. Trügler, R. Fausto, W. Schöner   +7 more
doaj   +1 more source

Magneto-electric point scattering theory for metamaterial scatterers

, 2010
We present a new, fully analytical point scattering model which can be applied to arbitrary anisotropic magneto-electric dipole scatterers, including split ring resonators (SRRs), chiral and anisotropic plasmonic scatterers.
Kampfrath, T., Koenderink, A. F., Sersic, I., Tuambilangana, C.   +3 more
core   +1 more source

Nichtlineare Staubungsneigung binärer Schüttgutmischungen: Herausforderungen bei der Prognose Non‐linear dusting tendency of binary bulk material mixtures: Challenges in prognosis

Chemie Ingenieur Technik, EarlyView.
Aufgrund überlagerter oder konkurrierender Mechanismen sind relevante Wechselwirkungen bei der Staubung von Schüttgutmischungen komplex und nur unzureichend verstanden. Selbst für Mischungen aus umfassend charakterisierten Einzelkomponenten existieren keine belastbaren Modelle. In dieser Arbeit werden die Hürden bei der Prognose thematisiert.
David Horst, Anke Helfer, Eberhard Schmidt   +2 more
wiley   +1 more source

Stochastic fiber dynamics in a spatially semi-discrete setting

, 2016
We investigate a spatially discrete surrogate model for the dynamics of a slender, elastic, inextensible fiber in turbulent flows. Deduced from a continuous space-time beam model for which no solution theory is available, it consists of a high ...
Lindner, Felix, Marheineke, Nicole, Stroot, Holger, Vibe, Alexander, Wegener, Raimund   +4 more
core   +1 more source

Vergleichende Untersuchung der Eigenschaften recycelter Kohlenstofffasern Comparative investigation of the properties of recycled carbon fibers

Chemie Ingenieur Technik, EarlyView.
Die Akzeptanz recycelter Kohlenstofffasern in der Industrie erfordert eine hohe und standardisierte Faserqualität. In diesem Artikel werden mechanische Eigenschaften sowie die Oberflächenqualität neuer und recycelter Kohlenstofffasern ermittelt und verglichen, um Optimierungspotentiale für das CFK‐Recycling abzuleiten.
Philipp Karsten Niebel, Violetta Schumm, Mareen Zöllner, Thomas Krampitz, Holger Lieberwith, Marcel Zeisberg, Enrico Baumgärtel, Jens Bachmann   +7 more
wiley   +1 more source