Results 61 to 70 of about 1,578 (143)

Strain‐Dependent Evolution of Fatigue and Oxidation Damage in a Nickel‐Based Single‐Crystal Superalloy: The Dominant Mechanism Under Low‐Cycle and Thermomechanical Fatigue

Rare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Systematic studies on the fatigue deformation and damage mechanisms of nickel‐based single‐crystal superalloys (Ni‐SXs) under combined thermal and mechanical conditions remain limited, particularly regarding the influence of strain amplitude on the relative contributions of fatigue and oxidation damage.
Liyin Zhang, Xiaoqing Liang, Xiaofeng Dang, Zhenyang Cao, Hao Su, Sihai Luo, Luqing Cui, Weifeng He   +7 more
wiley   +1 more source

Analysis of the efficiency of a counter-rotary hydraulic unit with a jet hydro turbine based on a Segner wheel [PDF]

E3S Web of Conferences
In the field of hydropower, which is one of the sources of renewable energy, there are many places where water pressure of 2-5 meters can be created in water sources.
Bozarov Oybek, Aliyev Rayimjon, Kodirov Dilshod, Bozorov Dilshodbek, Saidullaeva Saidakhan   +4 more
doaj   +1 more source

Assessment of Fiber Bragg Grating Sensors for Monitoring Shaft Vibrations of Hydraulic Turbines. [PDF]

Sensors (Basel), 2023
Sánchez-Botello X, Roig R, de la Torre O, Madrigal J, Sales S, Escaler X.   +5 more
europepmc   +1 more source

River‐Scale Evaluation of a Floating LED Light Array for Behavioral Guidance of American Eel

River Research and Applications, Volume 42, Issue 8, Page 1623-1637, October 2026.
ABSTRACT Exploiting the sensory physiology of migratory fishes to guide them away from hazards like hydroelectric turbines is of interest to regulatory agencies and hydropower operators to achieve conservation and management goals. Here we describe a river‐scale experiment where out‐migrating adult American eel (Anguilla rostrata) were tracked ...
Chris K. Elvidge, M. E. Cole MacLeod, Daniel Hatin, Alexandre Guindon, René Dion, Scott Schlueter, Justin Ecret, Jana R. Lantry, Thomas C. Pratt, David Stanley, Jake K. L. La Rose, Paul T. Jacobson, Douglas Bradley, Steven J. Cooke   +13 more
wiley   +1 more source

A Novel Distributed Sensor Network to Assess Wind Turbine Blade Acoustics for Structural Health Monitoring

Wind Energy, Volume 29, Issue 10, October 2026.
ABSTRACT To reduce the need for scheduled wind turbine blade inspections and large‐scale repairs, a novel distributed acoustic sensing system for monitoring the structural health of wind turbine blades is proposed. This integral passive monitoring system utilizes a sparse array of in‐blade multimodal sensors and a single blade‐external downtower sensor,
Connor Pozzi, Calvin Ng, Sage Lyon, Yan Luo, Christopher Niezrecki, Murat Inalpolat   +5 more
wiley   +1 more source

Sex‐Specific Atlantic Salmon Upstream Passage and Fallback at a Natural Cascade After Dam Removal

Fisheries Management and Ecology, Volume 33, Issue 5, Page 963-976, October 2026.
ABSTRACT In the Boquet River (NY, USA) a low‐head dam set above a ~200‐m bedrock cascade was removed in 2015. We used radio‐telemetry to assess landlocked Atlantic salmon passage at the remaining cascade (2020, 2022). Across years, 52% of males (13/25) attempted cascade passage whereas females made no discernable attempts (0/11).
Kurt C. Heim, Jonah L. Withers, William R. Ardren, Laurie A. Earley, David Minkoff, Theodore Castro‐Santos   +5 more
wiley   +1 more source

A Review of State of the Art for Accelerated Testing in Fluid Power Pitch Systems

Wind
Failures in hydraulic systems in offshore wind turbines represent an enormous challenge for manufacturers and operators, as the pitch system statistically is one of the subsystems contributing the most to the downtime of the turbines, which is the case ...
Diego Manuel Chamorro Ruz, Henrik C. Pedersen, Jesper Liniger, Mohit Bhola, Gyan Wrat   +4 more
doaj   +1 more source

China's Export Surge and the Persistence of Machinery Competitiveness: Panel Evidence From 25 Countries

The World Economy, Volume 49, Issue 10, Page 2255-2275, October 2026.
ABSTRACT China's rapid ascent as a global machinery exporter raises fundamental questions about competitive resilience of incumbent economies. This paper examines whether China's gains in revealed comparative advantage (RCA) are associated with declining competitive positions among 24 incumbent economies and whether such changes coincide with ...
Hyungbae Gil, Oonkyu Lee, Hangjung Zo
wiley   +1 more source

Potential of Thermoset Polyolefins for FRP Concrete Reinforcing Bars

Polymer Composites, Volume 47, Issue 18, Page 16155-16176, 20 September 2026.
Overview of XLPO and pDCPD resins for FRP reinforcing bars, highlighting resin chemistry, key performance characteristics, fiber sizing interactions, and principal degradation mechanisms in concrete environments. ABSTRACT Although thermoset polyolefins offer resistance to hydrolytic degradation and favorable processing characteristics, their potential ...
Osama Omar, Farzaneh Mahmoudi, Leonidas G. Bachas, Francisco De Caso, Brahim Benmokrane, Antonio Nanni   +5 more
wiley   +1 more source

DETERMINATION OF TURBINE EFFICIENCY FOR SMALL HYDRO POWER PLANTS [PDF]

Journal of Sustainable Energy, 2020
In this paper, authors briefly present the methods for determining the efficiency/performance of a hydraulic turbine, as well as the purpose, the necessity of applying in situ determination methods of the efficiency of hydraulic turbines from a ...
PURECE. C., CORLAN L., PLEŞCA V.
doaj