Results 141 to 150 of about 1,790,403 (266)

Coherent Stokes Raman Scattering for Simultaneous Measurement of CO2 and CH4 Temperatures

Journal of Raman Spectroscopy, Volume 57, Issue 10, Page 1644-1653, October 2026.
A three‐beam hybrid fs/ps CSRS method is employed to excite the rovibrational transitions in the Fermi‐dyad of CO 2 and the v2 mode of CH 4. Time‐domain spectroscopic models are developed to extract the fuel and flame temperature profiles from experimental CH 4 and CO 2 spectra in a diffusion flame.
Alexander M. Warner, Robert P. Lucht, Rohan M. Gejji, Carson D. Slabaugh   +3 more
wiley   +1 more source

Ultra‐High Isolation Decoupling and Matching Network for mmWave Antennas in Near‐Range FMCW Radars

Microwave and Optical Technology Letters, Volume 68, Issue 10, October 2026.
ABSTRACT A decoupling and matching network (DMN) based on substrate integrated coaxial line technique is proposed to suppress the mutual coupling between a pair of transmitting and receiving antennas operating at 35 GHz. The distorted radiation patterns, typically observed in closely spaced antennas, were improved by introducing carefully designed ...
Zhi Yue Xu, Xinyi Tang, Zhi Ning Chen
wiley   +1 more source

Modification of the Madeira River morphology following large hydropower projects detected by satellite data

River, Volume 5, Issue 3, Page 369-387, August 2026.
Abstract Estimating suspended sediment concentration (SSC) in river channels is essential for understanding hydro‐sedimentological processes, managing water quality, and conserving aquatic ecosystems. This study evaluated different empirical equations to estimate SSC in the lower Madeira River and analyzed its hydro‐sedimentary dynamics based on MODIS ...
Matheus Silveira de Queiroz, Rogério Ribeiro Marinho, Paulo Rodrigo Zanin, Andre Luis Martinelli Real dos Santos, Jean‐Michel Martinez, Naziano Pantoja Filizola Junior   +5 more
wiley   +1 more source

Photofluidization of Azobenzene‐Based Smart Materials: Fundamental Mechanisms, Structural Classifications, and Surface Patterning Applications

SmartMat, Volume 7, Issue 5, October 2026.
Azobenzene materials possess reversible photofluidization, promising for surface patterning. This review summarizes state‐of‐the‐art advances in azo‐material photofluidization, including photoisomerization mechanisms, molecular/polymer structural categories, emerging patterning applications, remaining challenges and future outlooks.
Jian Chen, Xiaoyan Yuan, Chuanyong Zong, Shichun Jiang, Yiyu Feng   +4 more
wiley   +1 more source

Signal development for chirp side-scan sonar

, 1992
Thesis (M. Ing.) -- University of Stellenbosch, 1992.At present there exists little if any published literature dealing with chirp side-scan sonar. It is suggested that chirp side-scan sonar offers range and resolution improvements over commercially ...
Coetzee, Ruan
core  

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

Effects of Reduced Precipitation and Water Level Variability on Phytoplankton Dynamics and Thermal Structure in a Large Tropical Reservoir

Water Resources Research, Volume 62, Issue 10, October 2026.
Abstract Drought is one of the most severe and complex natural hazards causing changes in water balance and impeding crucial water‐dependent ecosystem services. Over the last 25 years, multiple severe droughts linked to El Niño events have affected the Zambian and Zimbabwean regions.
Anna Joelle Greife, Elisa Calamita, Monica Pinardi, Laura Carrea, Ross I. Maidment, Jaime Pitarch, Mzime Regina Ndebele‐Murisa, Claudia Giardino, Mariano Bresciani, Francesco Pietro Fava, Clément Albergel, Marina Amadori   +11 more
wiley   +1 more source

Can landscape management provide disease regulation services? A case study of Brazilian spotted fever incidence

Journal of Applied Ecology, Volume 63, Issue 10, October 2026.
Policy implications. Our results can help prioritize surveillance strategies and the implementation of preventive measures, particularly in areas where landscape structures cannot provide disease regulation services. Landscape management actions aimed at increasing the amount of forest areas in a more aggregated manner could help restore those ...
Nicolas Conserva, Paula Ribeiro Prist, Gabriela Farias Asmus, Niko Speybroeck, Leandro Reverberi‐Tambosi   +4 more
wiley   +1 more source

Beyond Park Boundaries: Pastoral Rangelands as Functional Habitat for Migratory Herbivores in the Serengeti Ecosystem

African Journal of Ecology, Volume 64, Issue 7, October 2026.
ABSTRACT Communal rangelands outside core protected areas are vital for biodiversity conservation and pastoral livelihoods. The Serengeti–Mara Ecosystem (SME) in Tanzania and Kenya includes both protected areas and communal areas that border the parks.
Fred Ledidi, Kelvin Shoo, Isa Naline Noor, A. W. Kisingo, Han Olff   +4 more
wiley   +1 more source

A New Time-Frequency Approach for Weak Chirp Signal Detection

, 2007
Several methods have been proposed to detect chirp signals buried in white noise, including wavelet shrinkage and matching pursuits. However, most of these methods perform poorly when the signal-tonoise ratio (SNR) becomes very low (e.g. lower than 0 dB).
Te-Chung Yang, C.-C. Jay Kuo, Houng-jyh Wang   +2 more
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