Results 11 to 20 of about 135 (99)

Laser Surface Treatment of Nickel‐Alumina Coating for Enhancement of Erosion and Corrosion Resistance of High Speed Steel Vanes

Applied Research, Volume 5, Issue 5, October 2026.
Laser surface treatment was carried out to enhance the performance of Ni‐Al2O3 coatings on HSS substrates. The results revealed improved microstructural features, corrosion resistance and significant reduction in slurry erosion wear with 18 W laser treatment. ABSTRACT The sliding wear between hydraulic vane tip and the inner surface of the cam ring can
Majunath Keshav, Achutarao Bharatish, Sivakumar Solaiachari, Srilatha Rao   +3 more
wiley   +1 more source

Efficiency Testing of Pelton Turbines with Artificial Defects—Part 1: Buckets

Energies
Pelton turbines are susceptible to hydro-abrasive erosion from sediment-laden flows, resulting in a progressive loss of efficiency. Typical defect classes can be derived from the analysis of such damage observed in hydropower plants.
Florian Fahrni, Thomas Staubli, Ernesto Casartelli   +2 more
doaj   +1 more source

HWTS 50 Tool Steel Tailored for Laser Powder Bed Fusion: Sliding Wear of Bare Surfaces and Nitriding Response in Comparison with 18Ni300 and AISI H13

steel research international, Volume 97, Issue 10, Page 5103-5114, October 2026.
This work investigates the wear resistance and nitriding behavior of PBF‐LB/M‐processed Osprey HWTS 50, a lean hot work tool steel. Three heat treatment conditions are compared to conventional wrought H13, H11, and PBF‐LB/M 18Ni300. The study highlights HWTS 50's enhanced nitrogen diffusion, deeper nitriding hardness depth, and comparable or improved ...
Jonathan Hann, Giorgia Lupi, Sylvain Dossin, Riccardo Casati, Mandanà Moshiri, Arne Röttger, Faraz Deirmina   +6 more
wiley   +1 more source

Efficiency Testing of Pelton Turbines with Artificial Defects—Part 2: Needles and Seat Rings

Energies
The erosion of Pelton turbine components in mountainous areas with high sediment input is a major challenge for energy- and cost-efficient operation. Quantitative data on possible efficiency losses associated with local damage are needed.
Florian Fahrni, Thomas Staubli, Ernesto Casartelli   +2 more
doaj   +1 more source

The Anatomy of a Dust Emitting Hot Spot: The White Sands Playa‐Aeolian System, New Mexico, USA

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 10, October 2026.
Abstract The White Sands aeolian system is a hot spot of dust emissions and has likely been a persistent dust source since the early to mid‐Holocene, when arid conditions promoted the desiccation and erosion of Pleistocene Lake Otero and the formation of the dune field.
M. R. Sweeney, D. Bustos, P. Martinez, G. Harsha, S. L. Forman, S. Chadima, J. Hand, T. E. Gill   +7 more
wiley   +1 more source

Coal Mine Wastewater as a Secondary Resource: Advances in Treatment and Value Recovery Technologies

Environmental Quality Management, Volume 36, Issue 3, September 2026.
ABSTRACT Coal mine wastewater, which has historically been considered an environmental problem, is becoming more widely recognized as a secondary resource with substantial value recovery potential. Nevertheless, recent progress demonstrates that this wastewater could be converted into highly useful, industrially available pigments (like iron oxides) by
Mokgadi G. Rapeta, Johannes P. Maree, Tumelo M. Mogashane, Titus A. M. Msagati   +3 more
wiley   +1 more source

Conceptual Model of the Debarking Process of Large Wood in Rivers

Water Resources Research, Volume 62, Issue 9, September 2026.
Abstract When transported in rivers by short‐term episodic events such as floods and debris flows, large wood interacts with the flow, sediment, and river boundaries, leading to physical degradation such as weathering, abrasion, and breakage. This degradation, manifested as mass loss and structural alteration, weakens wood stability, increases mobility,
Jiangtao Yang, Frank Seidel, Virginia Ruiz‐Villanueva, Hervé Piégay, Mário J. Franca   +4 more
wiley   +1 more source

Surface‐State Controls on Dust Emission Variability in Lower Mesopotamia and Kuwait Using Field and Multi‐High‐Resolution Satellite Data

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 9, September 2026.
Abstract Aeolian dust strongly influences climate, air quality, and biogeochemical cycles, yet identifying source areas and determining their surface‐state controls remain challenging. We focus on lower Mesopotamia and Kuwait, a globally significant dust source region where surface characteristics of dust sources remain poorly understood through ...
Jasem A. Albanai, Giles F. S. Wiggs, Ali Al‐Hemoud, David S. G. Thomas   +3 more
wiley   +1 more source

Elevated UV‐B alters anti‐herbivore plant defence allocation, while silicon supplementation maintains resistance

Functional Ecology, Volume 40, Issue 9, Page 2982-3000, September 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The impacts of elevated surface ultraviolet‐B (UV‐B) on ecological processes, such as anti‐herbivore defence in plants, remain poorly understood. Many cereal crops depend on accumulating silicon (Si) in their tissues to resist insect herbivory.
Sajjad Reyhani Haghighi, Christopher I. Cazzonelli, Sue E. Hartley, Scott N. Johnson   +3 more
wiley   +1 more source

Biomimetic Design of Biopolymer‐Based Water‐Resistant Food Packaging Materials

Comprehensive Reviews in Food Science and Food Safety, Volume 25, Issue 5, September 2026.
ABSTRACT With the growing demand for sustainable and eco‐friendly food packaging, biopolymer‐based materials are emerging as promising candidates due to their recyclability, biodegradability, and food safety. However, in practical applications dealing with high moisture content or perishable foods, their lack of water resistance poses a significant ...
Ajahar Khan, Zohreh Riahi, Ruchir Priyadarshi, Jong‐Whan Rhim   +3 more
wiley   +1 more source