Results 71 to 80 of about 30,791 (266)

Photo Interpretation of Spruce Beetle-Attacked Spruce

Canadian Journal of Remote Sensing, 1985
RESUMEL'objectif de la presente communication est de presenter les resultats d'une etude visant a detecter les attaques du coleoptere de l'epinette a l'aide de photos infrarouge couleur (CIR) et de comparer les resultats avec des donnees recueillies au sol.
openaire   +1 more source

Internal Structure, Kinematics, and Prehistory of Frozen Debris Lobe‐A (FDL‐A), Brooks Range, Alaska

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Frozen Debris Lobe‐A (FDL‐A)—one of hundreds of FDLs in the Brooks Range of northern Alaska—is a slow‐moving landslide in permafrost that has been the subject of research since 2008 due to its close proximity to the Dalton Highway. Here, we synthesize more than a decade's worth of climate and surface measurements of monitored FDLs, and the ...
Margaret M. Darrow, Esther L. Babcock, Ben A. Leshchinsky   +2 more
wiley   +1 more source

Pembrolizumab-induced vasculitis demonstrated by FDG-PET/CT

Radiology Case Reports
A 76-year-old man with a history of malignant pleural mesothelioma treated with pembrolizumab underwent FDG-PET/CT for restaging. The images demonstrated FDG uptake overlying the right hepatic and splenic artery, which were new from the previous FDG-PET ...
Tuan Vu, BS, Sophia R. O'Brien, MD, Shawn X. Ma, MD, Karthik M. Sundaram, MD, PhD, Austin R. Pantel, MD, MSTR   +4 more
doaj   +1 more source

Using dendroclimatic analysis of exotic deciduous conifers in an arboretum to document tree growth in response to climate change, Northeast Ohio, USA

PLANTS, PEOPLE, PLANET, EarlyView.
Rising temperatures and wetter conditions in the Midcontinent of North America are influencing climate responses in trees. Dendroclimatological analyses of four exotic deciduous conifer species from Secrest Arboretum, Northeast Ohio help identify past, present and future climate‐tree interactions.
Gregory Wiles, Nicholas Wiesenberg, Srushti Chaudari, Wenshuo Zhao, Mazvita Chikomo, Benjamin Gaglioti, Meagen Pollock   +6 more
wiley   +1 more source

High-Titer Methane from Organosolv-Pretreated Spruce and Birch

Energies, 2017
The negative impact of fossil fuels and the increased demand for renewable energy sources has led to the use of novel raw material sources. Lignocellulosic biomass could serve as a possible raw material for anaerobic digestion and production of biogas ...
Leonidas Matsakas, Christos Nitsos, Dimitrij Vörös, Ulrika Rova, Paul Christakopoulos   +4 more
doaj   +1 more source

Hyperspectral species maps and LiDAR‐based structured population models show future forest fire frequency may compromise forest resilience

Remote Sensing in Ecology and Conservation, EarlyView.
Monitoring forest recovery from disturbances at scale requires tracking tree dynamics, yet traditional ground‐based approaches are resource‐intensive. We present a pipeline to parameterize integral projection models (IPMs) using LiDAR data and hyperspectral‐based species maps to assess post‐fire recovery across large, forested areas at the Caribou ...
Jessica McLean, Tommaso Jucker, Alice Rosen, Sean M. McMahon, Roberto Salguero‐Gómez   +4 more
wiley   +1 more source

Resin canals in spruce (Picea abis /L./ Karst.) with the occurrence of reaction wood

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2005
The paper was aimed at the determination of variability of horizontal resin canal dimension in spruce wood in relation to the position in a spruce stem.
Vladimír Gryc, Petr Horáček
doaj   +1 more source

Large‐scale characterization of horizontal forest structure from remote sensing optical images

Remote Sensing in Ecology and Conservation, EarlyView.
Sub‐meter resolution remote sensing data and tree crown segmentation techniques hold promise in offering detailed information that can support the characterization of forest structure from a horizontal perspective, offering new insights in the tree crown structure at scale.
Xin Xu, Martin Brandt, Xiaowei Tong, Maurice Mugabowindekwe, Yuemin Yue, Sizhuo Li, Qiue Xu, Siyu Liu, Florian Reiner, Kelin Wang, Zhengchao Chen, Yongqing Bai, Rasmus Fensholt   +12 more
wiley   +1 more source

Classification of tree species and standing dead trees in Boreal forests using UAV‐based RGB, multispectral, and LiDAR point clouds

Remote Sensing in Ecology and Conservation, EarlyView.
We evaluated single‐ and multi‐sensor UAV approaches for classifying tree species and standing dead trees in boreal forests, focusing on key biodiversity indicators such as European aspen. Using spectral and structural features extracted from RGB, multispectral (MSP), and LiDAR point clouds for 1,205 field‐measured trees, we compared classification ...
Anton Kuzmin, Lauri Korhonen, Topi Tanhuanpää, Mikko Kukkonen, Matti Maltamo, Timo Kumpula   +5 more
wiley   +1 more source

The Man and the Myth – Robert Smith-Barry as ‘The Man Who Taught the World to Fly’

Air and Space Power Review
Today, the Smith-Barry Academy is a training facility within the Central Flying School of the Royal Air Force (RAF). Based in the Trenchard Building at RAF Cranwell, the academy is responsible for researching new training methodologies.
David Spruce
doaj