Results 51 to 60 of about 21,421 (244)

Estimation and Validation Study of Soil Moisture Using GPS-IR Technique Over a Tropical Region: Variability of SM With Rainfall and Energy Fluxes

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Soil Moisture (SM) data play an important role in different fields of research like hydrology, agriculture, climatology, etc. In this article, global positioning system interferometric reflectometry technique was used to estimate SM.
G. N. Madhavi, P. Sharath Kumar, R. A. Chipade, Jyoti Bhate, Tummalapalli Venkata Chandrasekhar Sarma   +4 more
doaj   +1 more source

Climate change effects on biomass and greenhouse gas emissions are ameliorated by nontoxic endophytes in southeastern USA transition zone tall fescue pastures

Grassland Research, EarlyView.
Tall fescue produces more biomass and less carbon dioxide from the soil when it contains its beneficial fungal endophyte. Increased temperatures projected with climate change reduce fescue biomass, while altered rainfall frequency does not. Altering rainfall frequency and increasing temperatures can reduce carbon dioxide emissions from soil.
Rebecca K. McGrail, Jonathan D. Moore, A. Elizabeth Carlisle, Jim A. Nelson, Rebecca L. McCulley   +4 more
wiley   +1 more source

Polarized Bidirectional Reflectance Distribution Function Matrix Derived from Two-Scale Roughness Theory and Its Applications in Active Remote Sensing

Remote Sensing
A polarized bidirectional reflectance distribution function (pBRDF) matrix was developed based on the two-scale roughness theory to provide consistent simulations of fully polarized microwave emission and scattering, required for the ocean–atmosphere ...
Lingli He, Fuzhong Weng, Jinghan Wen, Tong Jia   +3 more
doaj   +1 more source

A Geophysical Model Function for S‐Band Reflectometry of Ocean Surface Winds in Tropical Cyclones

Geophysical Research Letters, 2019
Ocean surface wind remote sensing using reflectometry measurements from S‐band (2.3 GHz) digital communication satellite transmissions is demonstrated in tropical cyclones.
Han Zhang, James L. Garrison, Rozaine Wijekularatne, James Warnecke   +3 more
doaj   +1 more source

Effects of deficit irrigation and biostimulants on melon productivity and quality in semi‐arid conditions

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Water scarcity and soil salinization are major constraints to irrigated agriculture in semi‐arid regions, affecting crop productivity and fruit quality. Combining deficit irrigation with biostimulant application has emerged as a promising strategy to improve water use efficiency and plant stress tolerance.
Jefferson dos Santos Gomes Calaça, Jean Carlos Nogueira, José Raliuson Inácio Silva, Denizard Oresca, Alan Cezar Bezerra, Raquele Mendes de Lira, George do Nascimento Araújo Júnior, Luiz Guilherme Medeiros Pessoa, Agda Raiany Mota dos Santos, Sidney Antônio da Silva, Guilherme Heverton Lima e Silva, Douglas Nogueira Lima, Eduardo Soares de Souza   +12 more
wiley   +1 more source

Automated Photothermal Control of Block Copolymer Self‑Assembly and Metal Oxide Nanostructures Sintering

Macromolecular Rapid Communications, EarlyView.
This study presents a microscope‐based photothermal platform that integrates structured laser light projection with machine‐learning‐optimized illumination. By employing neural‐network models to predict and generate thermal profiles, the platform achieves precise thermal processing of block copolymer films.
Filip Franciszek Powala, Piotr Szustakiewicz, Przemyslaw Pula, Pawel Wawrzyniec Majewski   +3 more
wiley   +1 more source

A Ubiquitous GNSS-R Methodology to Estimate Surface Reflectivity Using Spinning Smartphone Onboard a Small UAS

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Global Navigation Satellite Systems (GNSS) Reflectometry (GNSS-R) has gained significant attention in retrieving geophysical parameters of the Earth's surface using ground, airborne, and spaceborne systems in the past decade.
Md Mehedi Farhad, Mehmet Kurum, Ali Cafer Gurbuz   +2 more
doaj   +1 more source

Embedding Fiber Segment Interferometry for Localization of Defects in Composite Structures

Polymer Composites, EarlyView.
Graphical representation of composite structures with embedded fiber optic sensors for structural health monitoring, enabling strain measurement and damage localization under mechanical loading. ABSTRACT In the area of structural health monitoring (SHM), embedding strain sensors into smart composites is a key strategy for detecting failures arising ...
Shiva Mohammadkarimi, Christoph Hemeling, Thomas Kissinger, Florian Puch   +3 more
wiley   +1 more source

Microwave Imaging Reflectometry Experiment in TPE-RX

, 2008
Microwave imaging reflectometry (MIR) was developed in TPE-RX, one of the world’s largest reversed field pinch (RFP) devices. The system optics are made of aluminum mirrors, Teflon lenses, and Plexiglas plates in order to reduce size.
SUGITO, Shoji, HIRANO, Yoichi, KIYAMA, Satoru, YAMAGUCHI, Soichiro, OHYABU, Nobuyoshi, MASE, Atsushi, SAKAKITA, Hajime, YAMBE, Kiyoyuki, NAGAYAMA, Yoshio, SHI, Zhongbing, KOGUCHI, Haruhisa, KOGI, Yuichiro   +11 more
core   +1 more source

Millimeter-Wave Reflectometry for Distinction Among Critical Metal Powder Properties Used in Additive Manufacturing (AM)

IEEE Open Journal of Instrumentation and Measurement
additive manufacturing (AM) or 3-D printing is the process of rapidly manufacturing complex parts that are used in a wide range of applications encompassing nearly unlimited types of critical and noncritical components.
Reza Zoughi, Jayaram Kizhekke Pakkathillam, Jason G. Xie   +2 more
doaj   +1 more source