Results 31 to 40 of about 3,469 (167)

Automatizovaný systém pro návrh technologických parametrů hydro-abrazivního dělení materiálu [PDF]

, 2010
The abrasive waterjet technology is used today mainly for cutting metal materials. However, it is possible to use this technology also for cutting non-metal materials like marble or other materials whose surface must comply with specific parameters ...
Hloch, Sergej, Kušnerová, Milena, Valíček, Jan, Řepka, Michal   +3 more
core  

Small is the New Large: Demonstration of how Microanalyses Elucidate Large‐Scale CO2 Uptake Through Mineralization

Advanced Sustainable Systems, Volume 10, Issue 2, February 2026.
Imaging techniques like X‐ray microcomputed tomography and electron microscopy are integrated to understand the CO2 mineralization process at the pore‐scale. These techniques are used to characterise the reaction progression in basalt. They increase the reliability of reactive transport modeling and consequently improve the CO2 storage capacity ...
Faisal W. K. Khudhur, Ian B. Butler, Stuart M. V. Gilfillan   +2 more
wiley   +1 more source

Hydro-abrasive erosion of hydraulic turbines caused by sediment - a century of research and development

IOP Conference Series: Earth and Environmental Science, 2016
Hydro-abrasive erosion of hydraulic turbines is an economically important issue due to maintenance costs and production losses, in particular at high- and medium-head run-of- river hydropower plants (HPPs) on sediment laden rivers. In this paper, research and development in this field over the last century are reviewed.
Felix, David; id_orcid0000-0001-7624-910X, Albayrak, Ismail; id_orcid0000-0002-4613-6726, Abgottspon, André, Boes, Robert; id_orcid0000-0002-0319-976X   +3 more
openaire   +2 more sources

Застосування зносостійких покриттів для підвищення працездатності елементів гідрорізальних пристроїв [PDF]

, 2012
Purpose. Among the trends of hydroabrasive treatment the improving of the accuracy and efficiency of processing equipment is allocated. Effectiveness can be enhanced by increasing fluid pressure and the number of concurrent working heads.
Kumurgy, O.U., Ljashenko, B.A., Moisejenko, M.S., Rutkovsky, A.V., Salenko, O.F., Кумуржи, О. Ю., Ляшенко, Б. А., Моісеєнко, М. С., Рутковський, А. В., Саленко, О. Ф.   +9 more
core  

An Overview of Recent Progress of Green Nano‐Composites for Sustainable Energy Storage Applications

Engineering Reports, Volume 8, Issue 2, February 2026.
This review highlights recent advances in green nanocomposites for sustainable energy storage, emphasizing biodegradable polymer matrices combined with eco‐friendly nanofillers. These materials deliver enhanced electrochemical performance, thermal stability, and environmental compatibility, offering promising pathways toward high‐performance, low ...
Md. Injamamul Haque Protyai, Shah Junaed Ahmed Saif, Md. Mushiur Rahman, Hrittik Mural, Adib Bin Rashid   +4 more
wiley   +1 more source

Tribology of particle suspensions in rolling-sliding soft contacts [PDF]

, 2015
We investigate the lubrication of microsphere suspensions between compliant substrates, and probe the influence of matrix viscosity, particle phase volume, surface roughness and wetting, and slide-to-roll ratio (SRR).
Bongaerts, J. H. H., Branfield, T. E., Stokes, J. R., Yakubov, G. E.   +3 more
core   +1 more source

The southwest Kalahari dune field does not emit dust post‐fire despite a lack of vegetation and above‐threshold winds

Earth Surface Processes and Landforms, Volume 51, Issue 2, February 2026.
The southwest Kalahari dune field has resident fine grains which may be emitted as mineral dust after protective vegetation is removed by fire. However, low wind speeds, high initial surface cover, and the protective effect of biocrusts result in the low possibility of the southwest Kalahari emitting dust post‐fire.
Rosemary A. Huck, David S. G. Thomas, Giles F. S. Wiggs   +2 more
wiley   +1 more source

Increased Glacier Melt Across Millennia to Hours Enhances Erosion and Sediment Export Processes

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 2, February 2026.
Abstract Glacial erosion and sediment evacuation are key in shaping polar and mountain landscapes and influencing downstream ecological and social systems. The glacier dynamics and hydrology responsible for these processes are closely linked to hydrological and climatic (hydro‐climatic) conditions.
Ian Delaney, Audrey Margirier, Marjolein Gevers, Matt Jenkin, Tancrède Leger, Ivan Vergara, Julien Seguinot, Guillaume Jouvet, Alan Robert Alexander Aitken, Stuart Lane, Frédéric Herman, Georgina E. King   +11 more
wiley   +1 more source

Hydro-abrasive erosion in Kaplan turbines: a case study

Journal of Hydroinformatics
ABSTRACT Sediment in the flowing water causes hydro-abrasive erosion of hydraulic turbines and other underwater components. In the present study, erosion quantification in the Kaplan turbine of a low-head hydropower plant (HPP) on the Upper Ganga Canal, is considered in the study.
Naman Arora, Arun Kumar, Sunil Kumar Singal   +2 more
openaire   +1 more source

Pelton turbine needle eccentricity leading to asymmetric hydro-abrasive erosion

IOP Conference Series: Earth and Environmental Science
Abstract Hydropower generation of turbines located near geologically young mountain ranges like the Himalayas is challenged by incoming sediment particles. Pelton turbines installed at high heads are significantly affected by hydro-abrasive erosion due to high flow and erosion velocities.
Navam Shrivastava, Anant Kumar Rai
openaire   +1 more source