Results 91 to 100 of about 1,373 (228)

Bioanalytical TERS and Advanced Data Processing Methods

Journal of Raman Spectroscopy, Volume 57, Issue 6, Page 977-994, June 2026.
Tip‐enhanced Raman spectroscopy delivers label‐free, subnanometer vibrational imaging of biological systems. Recent advances in instrumentation, data analysis, and ambient/liquid operation enable surface‐selective mapping of molecular heterogeneity in proteins, nucleic acids, membranes, and viruses, positioning TERS as a powerful platform for nanoscale
Sarika Joshi, Ankit Dodla, Sarthak Saxena, Twinkle Soni, Sumit Saxena, Shobha Shukla, Bayden R. Wood   +6 more
wiley   +1 more source

Demonstration, validation, and application of hyperspectral microscopy for the collection of cyanobacterial spectral signatures

Limnology and Oceanography: Methods, Volume 24, Issue 6, June 2026.
Abstract Cyanobacterial and other algal blooms are an environmental concern in waterbodies worldwide. While these blooms are a nuisance for recreational activities, they can also be harmful to human and wildlife health when the algae produce and release toxins.
Natalie C. Hall, Adam C. Mumford, Aaron M. Goldfain, David W. Allen, E. Terrence Slonecker, Alisa Shtabnoy, Carl J. Legleiter, Sarah A. Spaulding   +7 more
wiley   +1 more source

Finding Endmember Classes and Endmembers in Hyperspectral Images

, 2016
Remotely sensed images have been used in a broad range of applications ranging from chemical/biological defense, geology, agriculture to environmental protection, law enforcement and intelligence applications.
Gao, Cheng
core   +1 more source

Iron Fertilization of the North Pacific Did Not Drive Long‐Term Pliocene to Quaternary Cooling

AGU Advances, Volume 7, Issue 3, June 2026.
Abstract While several hypotheses exist to explain the development of large‐scale perennial Northern Hemisphere ice sheets in the late Pliocene and early Pleistocene, the prevailing view is that a decline in atmospheric carbon dioxide (CO2) drove this substantial change in late Neogene climate.
Jordan T. Abell, Gisela Winckler, Joshua D. Bridges, Robert F. Anderson, Timothy D. Herbert, Peter Molnar, Carmala Garzione   +6 more
wiley   +1 more source

Soil Moisture Content Estimation From Hyperspectral Remote Sensing Data

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Because of its significant absorption power, especially in the shortwave infrared optical region, water dominates the optical reflectance properties of water-bearing materials.
Ketaki Vinay Jambhali, Bikram Koirala, Zakaria Bnoulkacem, Paul Scheunders   +3 more
doaj   +1 more source

Mapping Quartz and Feldspar Areal Abundance and Grain Sizes Using Integrated VTIR Data

AGU Advances, Volume 7, Issue 3, June 2026.
Abstract Mineral dust is sourced from arid regions around the globe, and its composition impacts regional and global environments by affecting radiation balance, cloud formation, nutrient deposition, and snowmelt. As such, mineral dust plays a key role in Earth's energy and biogeochemical budgets.
Kathleen Grant, Philip G. Brodrick, Carlos Pérez Garcia‐Pando, María Gonçalves Ageitos, Aaron J. Celestian, A. Joshua West   +5 more
wiley   +1 more source

Hyperspectral Unmixing With Multi-Scale Convolution Attention Network

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Hyperspectral unmixing is to decompose the mixed pixel into the spectral signatures (endmembers) with their corresponding abundances. However, the ignorance of endmember variability in hyperspectral unmixing results in low performance.
Sheng Hu, Huali Li
doaj   +1 more source

Trace Metal Biogeochemistry in the Nordic Seas: Arctic and Atlantic Water Inflows Determine (Micro)Nutrient Availability

Global Biogeochemical Cycles, Volume 40, Issue 6, June 2026.
Abstract We present a data set of macronutrient and dissolved and total dissolvable trace metal concentrations collected in June 2012 across the Nordic Seas. Surface water and depth profiles of manganese, iron, cobalt, nickel, copper, zinc, phosphate, silicic acid, and NOx (nitrate + nitrite) reveal how warm saline Atlantic waters and cold fresh Arctic
Yaqing Ruan, Stephan Krisch, Thomas J. Browning, C. Mark Moore, Mario Esposito, Tim Steffens, Eric P. Achterberg   +6 more
wiley   +1 more source

A novel approach for endmember bundle extraction using spectral space splitting

, 2015
The traditional endmember extraction methods search for a fixed set of endmembers, each one assigned to a single material. However, in many real applications, the materials of interest may present spectral variability which is related to subtle ...
Müller, Rupert, Rivard, Benoit, Derek Rogge, Rupert Muller, Rogge, Derek, Benoit Rivard, Andreou, Charoula, Charoula Andreou   +7 more
core   +1 more source

Spectral Unmixing of Pigments on Surface of Painted Artefacts Considering Spectral Variability [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Painted artefacts, such as murals and paintings, are the treasures of human civilization. Pigment is an important component of their surfaces. It is crucial to study the composition and proportion of pigments on the surface of painted artefacts for the ...
Y. Wang, Y. Wang, S. Lyu, S. Lyu, B. Ning, D. Yan, M. Hou, M. Hou, P. Sun, P. Sun, L. Li   +10 more
doaj   +1 more source