Results 71 to 80 of about 20,195 (262)

Ultra‐High‐Efficiency On‐Chip CO2 Conversion by Nanosecond Self‐Pulsing Micro‐Plasma Devices

Carbon Energy, EarlyView.
A micro‐plasma chip with sub‐10‐μm electrode gaps is introduced for efficient CO2‐to‐CO conversion. The device self‐converts a DC power supply into nanosecond pulses, producing field‐emission electrons that vibrationally excite CO2, driving dissociation via the ladder‐climbing mechanism. A scaled‐up chip array achieves 30% single‐pass conversion and 50%
Guangyu Sun, Bartu Karakurt, Hongkeng Zhu, Onder Soydal, Jeremy S. Luterbacher, Elison Matioli   +5 more
wiley   +1 more source

River temperature response to atmospheric heatwaves is modulated by discharge and meltwater

Communications Earth & Environment
Alpine rivers are becoming increasingly exposed to atmospheric heatwaves. Because of their strong relationship with air temperature, rivers can experience persistent heat anomalies, known as riverine heatwaves, which can have serious consequences for ...
Amber van Hamel, Joren Janzing, Manuela Irene Brunner   +2 more
doaj   +1 more source

La construction du risque au prisme territorial : dans l'ombre de l'archétype alpin, les avalanches oubliées de moyenne montagne

Natures Sciences Sociétés, 2017
En France, le risque d'avalanche reste associé à la haute montagne, mais semble oublié dans les espaces de moyenne montagne. À partir des exemples de l'archétype alpin et du massif vosgien, cet article discute les mécanismes sociohistoriques ayant abouti
Giacona Florie, Eckert Nicolas, Martin Brice   +2 more
doaj   +1 more source

Dynamic Calibration of DEM Simulations Using Rotating Drum Experiments Using the Mean Absolute Error

Chemie Ingenieur Technik, EarlyView.
Calibrating DEM simulations is challenging due to unknown microscopic parameters. Rotating drum experiments are combined with image‐based analysis and Latin Hypercube Sampling (LHS). An area‐based Mean Absolute Error (MAE) enables reliable identification of optimal parameter sets.
Marius Hoffmann, Lukas Lentz, Roman Kirsch   +2 more
wiley   +1 more source

Towards a model of glide-snow avalanche occurrence using in-situ soil and snow measurements

Journal of Glaciology
Glide-snow avalanches release at the soil-snow interface and are currently difficult to predict. This is mostly due to a limited understanding of the release process and a lack of data, particularly of the snowpack and underlying soil conditions prior to
Amelie Fees, Alec van Herwijnen, Michael Lombardo, Jürg Schweizer   +3 more
doaj   +1 more source

The experiences of dealing with consequences of an avalanche – surviving soldiers’ perspectives

International Journal of Qualitative Studies on Health & Well-Being, 2019
Purpose: The aim of the study was to explore and describe experiences of daily life after having experienced an avalanche three decades ago. Method: This paper presents a qualitative study of 12 male survivors of an avalanche during their military ...
Lars-Petter Bakker, Siren Eriksen, Jon Gerhard Reichelt, Ellen Karine Grov   +3 more
doaj   +1 more source

Pre‐industrial land‐use limits contemporary shrub encroachment in the French Alps

Ecography, EarlyView.
Shrub encroachment has become a global phenomenon in recent decades. While global warming in the Arctic is often cited as the primary cause, human‐managed mountain regions have experienced intense historical land‐use that may also play a considerable role.
Baptiste Nicoud, Florian Carrière, Arthur Bayle, Christian Devlieger, Philippe Choler, Christophe Corona, Sandra Lavorel   +6 more
wiley   +1 more source

Ag‐Induced Phase and Defect Engineering of Co‐Evaporated Sb2Se3 Thin Films for Enhanced Photovoltaic Performance

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The sequential formation of Ag2Se and AgSbSe2 phases at the Sb2Se3/Mo interface upon Ag incorporation in co‐evaporated Sb2Se3 solar cells promotes grain growth and defect passivation. These newly formed intermediate phases enhance crystallinity and suppress recombination, leading to significant improvements in open‐circuit voltage, fill factor, and ...
Van‐Quy Hoang, Jaebaek Lee, Bashiru Kadiri‐English, Eunkyung Cho, Amanat Ali, Naveen Kumar, Evgeniia Gilshtein, Stela Canulescu, Dae‐Ho Son, Hyesun Yoo, Vo Pham Hoang Huy, Quynh Le‐Van, Dae‐Kue Hwang, Jin‐Kyu Kang, Kee‐Jeong Yang, Shi‐Joon Sung, Dae‐Hwan Kim   +16 more
wiley   +1 more source

Advancing super‐resolution stimulated emission depletion microscopy with luminescent lanthanide nanocrystals

FlexMat, EarlyView.
The state‐of‐the‐art research advances and its cutting‐edge application in super resolution stimulated emission depletion technology based on luminescent lanthanide nanocrystals. Abstract Stimulated emission depletion (STED) microscopy overcomes the diffraction limit to reveal subcellular structures beyond the reach of conventional optical methods ...
Yaqi Chen, Tengfei Ma, Shuping Huang, Wei Guo, Yiming Wu   +4 more
wiley   +1 more source

The Performance Gains of Assimilating Limited Information Into a Fully Distributed Snowpack Model Depend on Model Complexity and Input Data Quality

Water Resources Research
Estimating snowpack conditions in mountainous regions is critical for water resource management, flood forecasting, and avalanche hazard mitigation. However, most snowpack observations lack either spatial or temporal resolution, while estimates from ...
Moritz Oberrauch, Bertrand Cluzet, Jan Magnusson, Tobias Jonas   +3 more
doaj   +1 more source