Results 191 to 200 of about 20,066 (296)

Oxidation of Intermetallic Al–Fe–Mo Phases

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
The oxidation of ternary intermetallic phases reveals the initial selective oxidation to Al2O3 and a phase segregation into AlMo3 and AlFe. Fe‐rich molybdates result from an intermediate metallothermic redox reaction involving AlFe. Thermal oxidation processes of Al9‐xFexMo3 intermetallic phases are investigated by thermogravimetry, in situ X‐ray ...
Anna K. Weber, Angela Möller
wiley   +1 more source

Arc Resistance Enhancement of Converter Transformer Tank Through Structural Improvements: Simulation and Experimental Validation

open access: yesHigh Voltage, EarlyView.
ABSTRACT Currently, limited research exists on the structural response and protection methods of the converter transformer tank for ± 800 kV ultra‐high voltage direct current transmission project to high energy arc faults. This research investigates the dynamic response and the vulnerable areas of the ultra‐high voltage converter transformer under the ...
Ke Wang   +5 more
wiley   +1 more source

Review of Catenary Icing on High‐Speed Railways: Characteristics, Impact and Countermeasures

open access: yesHigh Voltage, EarlyView.
ABSTRACT The pantograph–catenary system (PCS) is the only path for electrified railway trains to acquire energy. Catenary icing during winter is a common natural phenomenon, which usually leads to the deterioration of the current quality and severely affects the operational safety of trains.
Zheng Li   +7 more
wiley   +1 more source

Climate Change and (Mal)Adaptation in Tourism‐Intensive Alpine Regions

open access: yesThe Political Quarterly, EarlyView.
Abstract Tourism, especially in winter, accounts for a large share of economic income in Alpine regions. At the same time, these regions are more severely affected by climate change, leading to shorter winter seasons and reduced snow cover. This presents a pressing issue for areas reliant on income from winter tourism through activities such as skiing.
Valentina Ausserladscheider
wiley   +1 more source

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