Results 41 to 50 of about 84,667 (294)

Crater Observing Bioinspired Rolling Articulator (COBRA)

open access: yesAdvanced Intelligent Systems, EarlyView.
Crater Observing Bio‐inspired Rolling Articulator (COBRA) is a modular, snake‐inspired robot that addresses the mobility challenges of extraterrestrial exploration sites such as Shackleton Crater. Incorporating snake‐like gaits and tumbling locomotion, COBRA navigates both uneven surfaces and steep crater walls.
Adarsh Salagame   +4 more
wiley   +1 more source

Quantifying the role of ozone-caused damage to vegetation in the Earth system: a new parameterization scheme for photosynthetic and stomatal responses [PDF]

open access: yesGeoscientific Model Development
Surface ozone (O3) is the primary air pollutant threatening global vegetation. It typically reduces the photosynthetic rate and stomatal conductance, leading to changes in carbon, water, and energy cycles; vegetation structure and composition; and ...
F. Li   +12 more
doaj   +1 more source

Traveling Trends: Social Butterflies or Frequent Fliers?

open access: yes, 2013
Trending topics are the online conversations that grab collective attention on social media. They are continually changing and often reflect exogenous events that happen in the real world.
Ferrara, Emilio   +3 more
core   +1 more source

Changes in the carbon balance of tropical forest: evidence from long-term plots [PDF]

open access: yes, 1998
The role of the world’s forests as a “sink” for atmospheric carbon dioxide is the subject of active debate. Long-term monitoring of plots in mature humid tropical forests concentrated in South America revealed that biomass gain by tree growth exceeded ...
Brown, S.   +10 more
core   +2 more sources

Automated Feature Extraction and Classification of Submerged Cultural Heritage Assets in the Puck Lagoon via Multisensor Remote Sensing

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT This study presents a strong framework for the detection and classification of Submerged Cultural Heritage Assets (SCHA) in shallow marine environments using the integration of multibeam echosounder and airborne LiDAR bathymetry with object‐based image analysis and fuzzy logic–based classification.
Łukasz Janowski   +4 more
wiley   +1 more source

Combined effects of urbanization and climate variability on water and carbon balances in a rice paddy-dominated basin in southern China

open access: yesEnvironmental Research Letters
Urbanization is known to elevate storm runoff, but how it influences carbon cycle and ecosystem productivity through altering the evapotranspiration (ET) process is less clear.
Dongxu Chen   +7 more
doaj   +1 more source

An Improved Method for Single Tree Trunk Extraction Based on LiDAR Data

open access: yesRemote Sensing
Scanning forests with LiDAR is an efficient method for conducting forest resource surveys, including estimating tree diameter at breast height (DBH), canopy height, and segmenting individual trees.
Jisheng Xia   +7 more
doaj   +1 more source

Quantifying slope-channel coupling in an active gully and fan complex at Tarndale, Waipaoa catchment, New Zealand [PDF]

open access: yes, 2010
Two RIEGL LMS‐Z420i scanner surveys (November 2007 and November 2008) of the Tarndale Gully complex and its associated fan were used to generate a digital elevation model (DEM) of difference in order to quantify gully‐fan‐channel connectivity.
Dean, Josh F   +4 more
core  

Optimization of pharmaceutical research and development by early‐phase assessment of investigational medicinal products

open access: yesBritish Journal of Clinical Pharmacology, EarlyView.
Small and mid‐sized pharmaceutical innovators often have limited in‐house health economics and market access expertise, and may struggle to align development strategies of investigational medicinal products with health system needs and payer expectations.
Zoltán Kaló   +5 more
wiley   +1 more source

Comparison of multiple satellite-derived products for assessing vegetation productivity and evapotranspiration in Nepal: Toward understanding carbon and water coupling in a mountainous region

open access: yesForest Ecosystems
Mountain ecosystems are highly sensitive to climate change, as they regulate carbon–water dynamics that underpin critical ecosystem services. Satellite remote sensing serves as a powerful tool for large-scale monitoring in mountainous regions where ...
Jiaxin Song   +6 more
doaj   +1 more source

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