Results 81 to 90 of about 561,233 (305)

Quantifying Dynamics in Tropical Peat Swamp Forest Biomass with Multi- Temporal LiDAR Datasets [PDF]

open access: yes, 2013
Tropical peat swamp forests in Indonesia store huge amounts of carbon and are responsible for enormous carbon emissions every year due to forest degradation and deforestation.
Asner   +52 more
core   +2 more sources

Skin‐Like Tri‐Modal Sensors Based on Soft Piezoelectric and Ionic Composites

open access: yesAdvanced Materials Technologies, EarlyView.
Inspired by the multimodal perception of human skin, a soft, skin‐like tri‐modal sensor is presented. The device incorporates an ionically conductive, piezoelectric, elastic composite as its active layer, enabling independent detection of temperature, static strain, and dynamic strain within a single two‐terminal architecture.
Liren Wang   +9 more
wiley   +1 more source

Assessment of underlying topography and forest height inversion based on TomoSAR methods

open access: yesGeo-spatial Information Science
Due to the strong penetrability, long-wavelength synthetic aperture radar (SAR) can provide an opportunity to reconstruct the three-dimensional structure of the penetrable media. SAR tomography (TomoSAR) technology can resynthesize aperture perpendicular
Chuanjun Wu   +5 more
doaj   +1 more source

Species-specific forest variable estimation using non-parametric modeling of multi-spectral photogrammetric point cloud data [PDF]

open access: yes, 2012
The recent development in software for automatic photogrammetric processing of multispectral aerial imagery, and the growing nation-wide availability of Digital Elevation Model (DEM) data, are about to revolutionize data capture for forest management ...
Bohlin, Jonas   +3 more
core  

Height-diameter allometry and above ground biomass in tropical montane forests: Insights from the Albertine Rift in Africa [PDF]

open access: yes, 2017
Tropical montane forests provide an important natural laboratory to test ecological theory. While it is well-known that some aspects of forest structure change with altitude, little is known on the effects of altitude on above ground biomass (AGB ...
Balegamire, C   +8 more
core   +5 more sources

Tailoring Electric and Magnetic Dipole Emission of Er3+ Ions via Toroidal Dipole Resonance of Si Nanodisk Hexagonal Array

open access: yesAdvanced Optical Materials, EarlyView.
Hexagonal arrays of silicon nanodisks are proposed to control 1.5 µm emission of Er3+ ions. Toroidal dipole resonance of the nanodisk array generates accessible magnetic hot spots at the surface, leading to enhanced and highly directional magnetic dipole emission along the surface‐normal direction via the magnetic Purcell effect.
Keisuke Moriasa   +3 more
wiley   +1 more source

Interferometric SAR Coherence Models for Characterization of Hemiboreal Forests Using TanDEM-X Data

open access: yesRemote Sensing, 2016
In this study, four models describing the interferometric coherence of the forest vegetation layer are proposed and compared with the TanDEM-X data. Our focus is on developing tools for hemiboreal forest height estimation from single-pol interferometric ...
Aire Olesk   +5 more
doaj   +1 more source

Biomass partitioning and growth efficiency in four naturally regenerated forest tree species [PDF]

open access: yes, 2010
Current forest growth models and yield tables are almost exclusively based on data from mature trees, reducing their applicability to young and developing stands.
Konopka, B   +3 more
core   +1 more source

Asymmetry in Skipping Enhances Viability Against Control Input Noise

open access: yesAdvanced Robotics Research, EarlyView.
Quadruped animals use asymmetric galloping gaits at high speeds, yet the functional role of this asymmetry remains unclear. This study shows that left–right asymmetry in touchdown angles enhances robustness to control noise. Using a simple two‐legged locomotion model and viability theory, it demonstrates that asymmetric skipping substantially enlarges ...
Yuichi Ambe, Alvin So, Shinya Aoi
wiley   +1 more source

The importance of tree allometry for local-scale variation in aboveground biomass [PDF]

open access: yes, 2018
Aboveground biomass (AGB) plays a critical role in determining the long-term dynamics of carbon in tropical forests. Consequently, understanding what factors are important in controlling AGB in tropical forests has major implications for projecting the ...
Doucet, Jean-Louis   +6 more
core  

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