Results 41 to 50 of about 21,248 (180)

Phytoplankton growth and potential cyanotoxin production differ in response to nitrogen and phosphorus amendments in late summer communities from Kabetogama Lake (Minnesota, United States)

Journal of Phycology, Volume 62, Issue 3, Page 883-903, June 2026.
Abstract Cyanotoxins such as microcystin (MC), cylindrospermopsin, and saxitoxin are secondary metabolites that are rich in nitrogen (N). Most cyanobacteria grow best on reduced inorganic N (ammonium, NH4), but when NH4 is absent, cyanobacteria can activate physiological pathways to process other N forms (e.g., nitrate; NO3).
James H. Larson, Ryan P. Maki, Sean W. Bailey, Victoria G. Christensen, Keith A. Loftin, Erin A. Stelzer, James C. Smith, Seth A. McWhorter   +7 more
wiley   +1 more source

LSTM-based Prediction of Short-term Water Level for Three Gorges and Gezhouba Cascade Powerplants [PDF]

长江科学院院报
Water level prediction for the Three Gorges-Gezhouba cascade hydropower stations is crucial for their safe and stable operation and overall benefits.
WANG Tao, XU Yang, CAO Hui, LIU Ya-xin, MA Hao-yu, ZHANG Zheng, XIE Shuai, CHANG Xin-yu
doaj   +1 more source

Opportunities for the U.S. Geological Survey's National Seismic Hazard Model to Improve Seismic Risk Assessment of Critical Infrastructure

Earthquake Spectra, Volume 42, Issue 2, May 2026.
As fragility and risk modeling techniques and computational capabilities evolve, complemented by moving toward more routine and systematic seismic risk assessment of all buildings and critical infrastructure, the authors pose a few critical questions to investigate how the U.S. Geological Survey (USGS) National Seismic Hazard Models (NSHMs) can be used
Kishor S. Jaiswal, N. Simon Kwong
wiley   +1 more source

Computational fluid-dynamic analysis of an automated floodgate for capacity gains in hydroelectric powerplants [PDF]

RBRH
Brazil has an elevated dependence on hydroelectric powerplants, both in terms of production of renewable energy as well as providing stability to the energy grid while using intermittent energy sources.
Antônio Carlos Barkett Botan, Oswaldo Honorato de Souza Junior, Geraldo Lúcio Tiago Filho, Ivan Felipe Silva dos Santos   +3 more
doaj   +2 more sources

THE URBAN METABOLISM OF FLOOD PROTECTION INFRASTRUCTURE IN JAKARTA, INDONESIA

International Journal of Urban and Regional Research, Volume 50, Issue 3, Page 545-566, May 2026.
Abstract Investments in large‐scale climate infrastructures are central to emerging forms of climate urbanism. In Jakarta, flood protection infrastructures seek to protect the city from devastating flood events in anticipation of future catastrophes.
Sophie Webber, Wahyu Kusuma Astuti
wiley   +1 more source

Study of Aerodynamic Characteristics of Asymmetrical Blades and a Wind-Driven Power Plant with a Vertical Axis of Rotation

Applied Sciences
This paper presents the results of wind tunnel experiments, where lift and drag coefficients were studied at various angles of attack and flow speeds, alongside numerical simulations conducted in ANSYS.
Muhtar Isataev, Rustem Manatbayev, Zhanibek Seydulla, Birzhan Bektibai, Nurdaulet Kalassov   +4 more
doaj   +1 more source

A framework for capturing indirect impacts in site‐level screening for biodiversity risks

Methods in Ecology and Evolution, Volume 17, Issue 5, Page 1376-1386, May 2026.
Abstract Site‐based industrial operations such as mining, oil and gas extraction and renewable energy development are associated with many direct and indirect impacts on biodiversity. Consideration of the full range of these impacts when selecting a buffer distance to approximate the Area of Influence (AoI) of a project is critical for effective ...
Divya Narain, Jacob Bedford, Elspeth Grace, Alfred Muge, Aime Rankin, Matthew I. Jones, Sebastian Dunnett   +6 more
wiley   +1 more source

Hybrid Propulsions of Mobile Machines Is Competitive Direction of Belarus Mechanical Engineering

Механика машин, механизмов и материалов, 2014
An analysis of the status and trends of the global production of cars with hybrid powerplants shows, that over the past two or three years these powerplants began to spread to medium and heavy trucks, as well as other vehicles.
A.A. Djuzhev , P.L. Mariev , L.G. Krasnevskiy , S.N. Poddubko , A.V. Belevich   +4 more
doaj  

Solid Particle Erosion and Predictive Modeling of Epoxy Composites Reinforced With Diatom Frustules

Polymer Composites, Volume 47, Issue 8, Page 7094-7108, 20 April 2026.
Schematic representation of the solid particle erosion process and predictive modeling workflow for diatom frustule‐reinforced epoxy composites, illustrating the test setup, erosion response curve, and filler‐matrix interaction. ABSTRACT This study examines the solid particle erosion wear behavior of epoxy composites reinforced with 5–20 wt% calcined ...
Elif Gültürk, Eser Yarar, Orkan Baran Korkusuz, Aleyna Kara, Tamer Sınmazçelik   +4 more
wiley   +1 more source

Decadal shifts in hypoxia and acidification reveal changing anthropogenic pressures on bottom waters of a coastal shelf

Limnology and Oceanography, Volume 71, Issue 4, April 2026.
Abstract Coastal systems provide habitat that sustains valuable shellfisheries but are subject to dissolved oxygen (DO) and/or carbonate chemistry impairment from anthropogenic pressures such as eutrophication and increasingly, climate change. Although extreme events can have disproportional negative ecological impacts, their ephemeral nature and a ...
Stephen J. Tomasetti, Jeffrey R. Kraemer Jr., Brendan D. Hallinan, Janet A. Nye, Christopher J. Gobler   +4 more
wiley   +1 more source