Results 71 to 80 of about 3,014 (298)

Ice Spheres as Model Snow: Tumbling, Sintering, and Mechanical Tests

Frontiers in Earth Science, 2019
The snow microstructure is crucial for the mechanical behavior of snow, but is usually simplified in numerical models. In Discrete Element Models (DEM), often used in snow mechanics, the microstructure is typically represented by sphere assemblies.
Carolin Willibald, Sophia Scheuber, Henning Löwe, Jürg Dual, Martin Schneebeli   +4 more
doaj   +1 more source

Collective Grievance Promotes Collective Action and Aggressive Intergroup Inclinations Through Dehumanization Among Conservative Members of Dominant Groups

European Journal of Social Psychology, EarlyView.
ABSTRACT Previous research has focused on disadvantaged groups seeking social change, overlooking how dominant groups mobilize to preserve the status quo. Across three studies (two correlational, one experimental), we explored how collective grievance—the feeling of being or having been collectively wronged by an outgroup—drives system‐preserving ...
Beatriz Alba, Alexandra Vázquez
wiley   +1 more source

Numerical simulation of drifting sand [PDF]

, 2000
Two-phase flows are involved in many industrial and natural flow phenomena varying from as specific as the transport of crude oil in pipelines to as general as the dispersion of pollutants in the atmosphere.
Alhajraf, Salem
core  

Comparative Assessment and Benchmarking of Metaheuristic Algorithms for Dynamic Photovoltaic Array Reconfiguration Under Diverse Shading Environments

Energy Science &Engineering, EarlyView.
ABSTRACT The solar photovoltaic (PV) installations, which are essential for renewable energy systems, are vulnerable to partial shading, resulting in considerable power losses and operational inefficiencies. The dynamic reconfiguration of PV arrays has become an effective strategy to mitigate these effects by adaptively modifying the array topology to ...
Manoharan Premkumar, Ravichandran Sowmya, Jagarapu S. V. Siva Kumar, Mustafa Abdullah   +3 more
wiley   +1 more source

Construction and maintenance of road over peat

, 1954
One of the prime responsibilities of the Associate Committee on Soil and Snow Mechanics is the prosecution and development of research work on muskeg, in view of the widespread distribution of muskeg in the north of Canada and of its great importance to ...
Mckillop, E. R., Dryburgh, F. B.
core   +1 more source

Daily Residential Natural Gas Demand Forecasting Using Machine Learning Regression: Comparative Evaluation With a Case Study in Qazvin Province, Iran

Energy Science &Engineering, EarlyView.
This graphical abstract summarizes the proposed framework for improving short‐term residential natural gas consumption forecasting by integrating a novel socioeconomic indicator, the subscription growth ratio (SGR), with conventional meteorological variables.
Ali Pirzad, Mostafa Khanzadi
wiley   +1 more source

A Review of Russian Snow Avalanche Models—From Analytical Solutions to Novel 3D Models

Geosciences, 2020
The article is a review of mathematical models of snow avalanches that have been proposed since the middle of the 20th century and are still in use. The main attention is paid to the work of researchers from the Soviet Union and Russia, since many of ...
Margarita Eglit, Alexander Yakubenko, Julia Zayko   +2 more
doaj   +1 more source

Renewable Energies in Kazakhstan: Current Status, Potential, Challenges, and Opportunities

Energy Science &Engineering, EarlyView.
Kazakhstan has strong renewable energy potential, with wind as the leading resource and solar and other sources offering additional opportunities. Key challenges include limited infrastructure, investment needs, and grid‐related technical issues. Despite these barriers, renewables can boost economic diversification, enhance energy security, create jobs,
Lyailim Taizhanova, Akhmetov Berik, Samal Syrlybekkyzy, Shynar Baimukasheva, Symbat Koibakova, Nurkhat Zhakiyev, Mohammad Alhuyi Nazari, Mohamed Salem   +7 more
wiley   +1 more source

A Novel Bipolar DC Connection Strategy for Photovoltaic Power Plants With a 50% Reduction in DC Cabling Length

Energy Science &Engineering, EarlyView.
Bipolar configuration is a new topology in the direct current (DC) system of photovoltaic power plants, which is topologically analogous to the bipolar configuration utilised in High‐Voltage Direct Current power transmission systems. DC cable length and copper usage are reduced by 50% using a bipolar configuration.
Duško M. Tovilović, Željko R. Đurišić, Vladan R. Durković   +2 more
wiley   +1 more source

Quantifying radiative effects of light-absorbing particle deposition on snow at the SnowMIP sites [PDF]

The Cryosphere
The deposition of light-absorbing particles (LAPs) leads to a decrease in surface albedo over snow-covered surfaces. This effect, by increasing the energy absorbed by the snowpack, enhances snowmelt and accelerates snow aging, process that in turn are ...
E. Zorzetto, E. Zorzetto, E. Zorzetto, P. Ginoux, S. Malyshev, E. Shevliakova   +5 more
doaj   +1 more source