Results 41 to 50 of about 148,136 (310)

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

, 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.
Juilson Jubanski, Jubanski, Juilson, Florian Siegert, Siegert, Florian, Englhart, Sandra, Sandra Englhart   +5 more
core   +1 more source

Facet‐Specific PbS Quantum Dot Passivation Using Halide Perovskites for SWIR Photodetectors

Advanced Materials Interfaces, EarlyView.
PbS quantum dots (QDs) are emerging as powerful short‐wave infrared photodetectors, yet the passivation mechanism of large QDs by perovskites ‐ critical for their stability ‐ remains unexplained. Here, we unveil the ligand structure of CH3NH3PbI3 (MAPI)‐passivated 4‐nm PbS QDs using FTIR, XPS, SEM, NMR, and DFT.
L. Paillardet, M. Gromova, D. Liu, A. S. Vasenko, O. V. Prezhdo, S. Alarab, G. De Paëpe, G. Lefevre, S. Charlot, O. Gourhant, B. Mortini, P. Reiss, J.‐M. Verilhac, D. Aldakov   +13 more
wiley   +1 more source

Improving wind speed availability of a six-beam Doppler lidar [PDF]

Wind Energy Science
A simple adaptive variant of the Doppler beam swinging (DBS) method is presented to enhance the availability of wind velocity measurements in profiling lidars.
M. Manami, M. Manami, G. Léa, J. Mann, M. Sjöholm, G. Gorju   +5 more
doaj   +1 more source

Model-based inference for biomass estimation in a LiDAR sample survey in Hedmark County, Norway [PDF]

, 2011
In forest inventories, regression models are often applied to predict quantities such as biomass at the level of sampling units. In this paper, we propose a model-based inference framework for combining sampling and model errors in the variance ...
Erik Næsset, Ross Nelson, Holm, Sören, Göran Ståhl, Sören Holm, Timothy G. Gregoire, Ståhl, Göran, Gregoire, Timothy G., Gobakken, Terje, Terje Gobakken, Næsset, Erik, Nelson, Ross   +11 more
core   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

On‐Chip Saturated Absorption of CO2 in a Silicon‐on‐Sapphire Waveguide

Advanced Optical Materials, EarlyView.
We demonstrate the first saturated absorption of a molecular gas on a planar photonic chip. By coupling carbon dioxide with the tightly confined light of a silicon‐on‐sapphire waveguide, we achieve optical saturation using only milliwatt powers. This breakthrough provides a practical, low‐power foundation for creating ultra‐compact mid‐infrared ...
Shahar Edelstein, Noa Mazurski, Uriel Levy   +2 more
wiley   +1 more source

Attention mechanism based CNN-LSTM hybrid deep learning model for atmospheric ozone concentration prediction

Scientific Reports
Considering that ozone is essential to understanding air quality and climate change, this study presents a deep learning method for predicting atmospheric ozone concentrations.
Jiang Yuan, Hua Dengxin, Wang Yufeng, Yang Xueting, Di Huige, Yan Qing   +5 more
doaj   +1 more source

Clear Waters, Stronger Depths: Advancing Bathymetric Lidar Through Community Practices [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The science of mapping beneath the water's surface with lasers is no longer novel, but its relevance has never been greater. Over the past decade, bathymetric lidar has evolved from a niche tool into a diverse ecosystem of sensors and operators, tailored
N. D. Johnson, J. M. Wozencraft, C. L. Macon   +2 more
doaj   +1 more source

3D VISUALIZATION OF MANGROVE AND AQUACULTURE CONVERSION IN BANATE BAY, ILOILO [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
Studies have shown that mangrove forests in the Philippines have been drastically reduced due to conversion to fishponds, salt ponds, reclamation, as well as other forms of industrial development and as of 2011, Iloilo’s 95 % mangrove forest was ...
G. A. Domingo, M. M. Mallillin, A. M. C. Perez, A. R. C. Claridades, A. R. C. Claridades, A. M. Tamondong, A. M. Tamondong   +6 more
doaj   +1 more source

A Review on Sensor Technologies, Control Approaches, and Emerging Challenges in Soft Robotics

Advanced Robotics Research, EarlyView.
This review provides an introspective of sensors and controllers in soft robotics. Initially describing the current sensing methods, then moving on to the control methods utilized, and finally ending with challenges and future directions in soft robotics focusing on the material innovations, sensor fusion, and embedded intelligence for sensors and ...
Ean Lovett, Maxwell Hammond, Niloufar Seyfi, Amirreza Fahim Golestaneh, Venanzio Cichella, Caterina Lamuta   +5 more
wiley   +1 more source