Results 61 to 70 of about 556,737 (306)

Combining Multi-Dimensional SAR Parameters to Improve RVoG Model for Coniferous Forest Height Inversion Using ALOS-2 Data

open access: yesRemote Sensing, 2023
This paper considers extinction coefficient changes with height caused by the inhomogeneous distribution of scatterers in heterogeneous forests and uses the InSAR phase center height histogram and Gaussian function to fit the normalized extinction ...
Rula Sa, Yonghui Nei, Wenyi Fan
doaj   +1 more source

Height of successional vegetation indicates moment of agricultural land abandonment [PDF]

open access: yes, 2018
One of the major land use and land cover changes in Europe is agricultural land abandonment (ALA) that particularly affects marginal mountain areas.
Kolecka, Natalia
core   +1 more source

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

open access: yesAdvanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai   +6 more
wiley   +1 more source

Improving Forest Height-To-Biomass Allometry With Structure Information: A Tandem-X Study

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Allometric relations that link forest above ground biomass to top forest (i.e., canopy) height are of particular significance in the context of lidar and interferometric synthetic aperture radar remote sensing, as both techniques allow accurate height ...
Changhyun Choi   +3 more
doaj   +1 more source

Survivorship and Growth of Seedlings and Saplings in Urban Forests [PDF]

open access: yes, 2019
Research in 1993, 2003, and 2013 showed high rates of tree mortality and low rates of recruitment (new trees) in Portland, Oregon’s Forest Park. To determine if the lack of young trees was an urban phenomenon, we added three control sites in the Mount ...
Bassler, Austen F.   +2 more
core   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

open access: yesAdvanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana   +2 more
wiley   +1 more source

PolSAR Forest Height Estimation Enhancement With Polarimetric Rotation Domain Features and Multivariate Sensitivity Analysis

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Forest height is a critical indicator of forest health and can directly influence the carbon storage capacity of ecosystems. Polarimetric features extracted from polarimetric synthetic aperture radar play a crucial role in forest height estimation ...
Fu-Gen Jiang, Ming-Dian Li, Si-Wei Chen
doaj   +1 more source

Computer vision techniques for forest fire perception [PDF]

open access: yes, 2008
This paper presents computer vision techniques for forest fire perception involving measurement of forest fire properties (fire front, flame height, flame inclination angle, fire base width) required for the implementation of advanced forest fire ...
Arrue Ullés, Begoña C.   +4 more
core  

Estimating logged-over lowland rainforest aboveground biomass in Sabah, Malaysia using airborne LiDAR data [PDF]

open access: yes, 2016
Unprecedented deforestation and forest degradation in recent decades have severely depleted the carbon storage in Borneo. Estimating aboveground biomass (AGB) with high accuracy is crucial to quantifying carbon stocks for Reducing Emissions from ...
Bidin, K.   +8 more
core   +3 more sources

Combinatorial Synthesis of Next Generation Water‐Soluble Quaternized N‐Halamine Oligomers with Long‐Lasting Antiviral Properties

open access: yesAdvanced Functional Materials, EarlyView.
A combinatorial library of dual‐functional antiviral oligomers incorporating N‐halamine and quaternary ammonium functionalities is developed for long‐lasting antiviral activity. The lead materials exhibit rapid and durable antiviral activity against SARS‐CoV‐2 variants and influenza H1N1, with 4 to 5 log reduction in viral copies at 5 mg mL−1 ...
Eid Nassar‐Marjiya   +14 more
wiley   +1 more source

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