Results 101 to 110 of about 3,014 (298)

Three-dimensional structural image analysis and mechanics of snow [PDF]

, 2011
Summary This work deals with the problem of predicting the mechanical behaviour of dry snow based on the geometries and properties of its constituents. This approach is known as homogenisation. The main constituents of dry snow are ice and air.
Theile, Thiemo
core   +1 more source

Testing the Strength of Buried Surface Hoar Weak Layers Under Combined Compression and Shear Loading

Geophysical Research Letters
We experimentally determined the multiaxial strength of weak layers of buried surface hoar using displacement‐controlled tests under combined normal and shear loading on a custom testing machine.
Jakob Schöttner, Marcel Piecuch, Philipp L. Rosendahl, Melin Walet, Valentin Adam, Philipp Weißgraeber, Jürg Schweizer, Alec vanHerwijnen   +7 more
doaj   +1 more source

A machine learning assisted method for rapidly annotating benthic megafauna in large volumes of marine imagery

Limnology and Oceanography: Methods, EarlyView.
Abstract Recent technological advancements have rapidly expanded our capacity for collecting image data in the marine environment, but processing images into meaningful ecological metrics remains a manual, time‐consuming, and biased process. This is particularly challenging with electro‐optical cabled imaging systems which generate images at a rate ...
Katharine T. Bigham, Ada Carter
wiley   +1 more source

Insulator fault feature extraction system of substation equipment based on machine vision

IET Networks, EarlyView., 2022
Abstract The artificial intelligence technology and intelligent automation are more and more widely used, the insulators play a supporting and insulating role in the operation of the grid. The use of machine vision inspection technology to detect insulator faults has become an inevitable trend of the times.
Keruo Jiang, Qiaoqun Xia, Lijun Ma, Xin Xu, Zhipeng Shao   +4 more
wiley   +1 more source

Wind flow studies for drifting snow on roads / [PDF]

, 2002
During strong winds, drifting snow causes problems on roads in many harsh winter climate countries. Increased snow-removal costs, reduced access and safety problems are typical results of excessive snowdrift sedimentation and bad visibility along many ...
Thordarson, Skuli
core  

Influence of Microstructure on Mechanical Properties of Snow

Defence Science Journal, 1995
Snow, being composed of ice grains of varying shapes, sizes, orientations, etc., has been treated as a particulate material. The mechanical properties of snow have been described in terms of microstructural parameters. A set of variables, which characterise the microstructure of snow at the granular level, has been chosen and quantified following ...
K.C. Agrawal, R.K. Mittal
openaire   +1 more source

Alpine flora of Kashmir Himalaya: floristic assessment, life history traits and threat status

Nordic Journal of Botany, EarlyView.
Alpine ecosystems in the Himalaya are considered to be at a higher risk to anthropogenic global change drivers. The Kashmir Himalaya, located in the north‐western side of the Himalayan biodiversity hotspot, harbors a diverse alpine flora, which remains systematically little investigated.
Bilal A. Rasray, Showkeen A. Lone, Rameez Ahmad, Tajamul Islam, Hitendra Padalia, Anzar Ahmad Khuroo   +5 more
wiley   +1 more source

Robust Performance Loss Rate Calculation for Photovoltaic Systems in High Latitude Locations

Progress in Photovoltaics: Research and Applications, EarlyView.
This work studies the best methods for performance loss rate (PLR) calculation in high latitude locations, characterized by strong seasonal variability. As the different methods can drastically affect the PLR value, an ensemble method consisting of multiple approaches was validated to be essential in identifying robust PLRs.
Lauri Karttunen, Väinö Anttalainen, Sami Jouttijärvi, Juha A. Karhu, Hugo Huerta, Samuli Ranta, Anders V. Lindfors, Kati Miettunen   +7 more
wiley   +1 more source

Enhanced Tire–Snow Sinkage Modeling for Optimized Electric Vehicle Traction Control in Northern China Snow Conditions

World Electric Vehicle Journal
The interaction between tires and snow layer is fundamental for vehicle safety on snowy roads. Due to the instantaneous high torque output characteristics of electric vehicles, they are more prone to slipping when driving in snow, which exacerbates the ...
Jingyi Gu, Bo Li, Shaoyi Bei, Chenyu Hu
doaj   +1 more source

Integrating habitat suitability, socioeconomics, and infrastructure to assess global biological invasion risk under climate change: A case study of the rice stem borer, Chilo suppressalis

Pest Management Science, EarlyView.
We developed an invasion risk index framework that integrates socioeconomic and environmental data using an entropy‐weighting method. The case study highlights the need for region‐specific biosecurity measures for Chilo suppressalis. Abstract BACKGROUND Biological invasion risk is a multifaceted concept that, according to the Food and Agriculture ...
Jinsol Hong, Minyoung Lee, Yongeun Kim, Yun‐Sik Lee, June Wee, Jaejun Song, Taewoo Kim, Jung‐Joon Park, Florian Kraxner, Woo‐Kyun Lee, Youngil Song, Kijong Cho   +11 more
wiley   +1 more source