Results 151 to 160 of about 817,121 (301)

A Backdrivable Impedance‐Controlled Wrist for Safe and Measurable Canopy Interaction in Robotic Apple Harvesting

open access: yesAdvanced Intelligent Systems, EarlyView.
Dense apple canopies make contact unavoidable, and human pickers handle it by letting the wrist give. A compact backdrivable wrist brings the same compliance to a harvesting robot, deflecting on contact and estimating the interaction torque from motor current alone.
Ali Yasar   +6 more
wiley   +1 more source

Multimodal Mixed Reality for In‐Field Visualization of RGB‐Based Vegetation Indices

open access: yesAdvanced Intelligent Systems, EarlyView.
Evaluating crop physiological health in field environments remains constrained by offline data processing or static 2D displays, limiting real‐time spatial interpretation. This paper presents a novel mixed reality framework that calculates, normalizes, and visualizes 20 RGB‐based vegetation indices directly in agricultural fields using consumer‐grade ...
Caio Mucchiani, Konstantinos Karydis
wiley   +1 more source

Environmentally Symbiotic Plant Robot

open access: yesAdvanced Intelligent Systems, EarlyView.
An environmentally symbiotic plant robot is presented that externalizes its drive system to plants and soil. By converting germination and growth forces into locomotion, the robot sustains a closed cycle of seeding, germination, growth, and reseeding, autonomously traveling on soil for 30 days using only environmental resources while distributing seeds
Kazuya Murakami   +3 more
wiley   +1 more source

Seeds of change: The impact of Ethiopia's direct seed marketing approach on smallholders' seed purchases and productivity

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract While multiple factors explain low adoption rates of improved varieties by small‐scale farmers in sub‐Saharan Africa, a key supply‐side constraint is the limited availability of seed embodying new traits in the volume, quality, price, and timeliness required by farmers. This constraint is partly attributable to classical failures in the market
Dawit Mekonnen   +5 more
wiley   +1 more source

Climate change and perennial crop production: Evidence of yield impact and adaptation in California

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Perennial crops are economically important. They contribute to food security, providing essential nutrients that are often lacking in annual crops, and provide additional environmental benefits compared with annual crops. Despite their importance, empirical research on the impacts of climate change and adaptation on perennial crops remains ...
Yuanyuan Wen   +2 more
wiley   +1 more source

Modern Himalayan marmot faeces analyses: Implications for palaeodietary, palaeoecological, and palaeoclimate analysis. [PDF]

open access: yesPLoS One
Basumatary SK   +7 more
europepmc   +1 more source

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