Results 181 to 190 of about 3,722,852 (307)

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

Flying Through Cluttered and Dynamic Environments With Light Detection and Ranging

open access: yesAdvanced Intelligent Systems, EarlyView.
A LiDAR‐based navigation system enables UAVs to autonomously fly through cluttered environments while avoiding high‐speed dynamic obstacles. With a total module computation latency of about 12.28 ms and the worstcase perception‐to‐action latency of around 22 ms theoretically, the system successfully avoids obstacles of diverse sizes, geometries, and ...
Huajie Wu   +7 more
wiley   +1 more source

Uncovering renewable energy policy impact channels on land values, the local farm structure, and farmland heterogeneity

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Germany's Renewable Energy Sources Act (REA), enacted in 2000 and subsequently amended, subsidized national renewable energy production with fixed feed‐in tariffs for renewable energy sources (RE) from wind, solar, and biogas. Empirical studies suggest that the policy was creating windfall effects for landowners and attribute farmland use ...
Lars Isenhardt   +6 more
wiley   +1 more source

Causal analysis of trade loss from pathogens: A global study of foot and mouth disease impacts on meat exports

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Our general interest is in global trade loss from livestock pathogens, specifically exports. We adopt a causal inference approach that considers animal disease outbreaks over time as non‐staggered binary treatments with the potential for switching in (infection) and out of treatment (recovery) within the sample period. The outcome evolution of
Mohammad Maksudur Rahman   +1 more
wiley   +1 more source

How cold is too cold? A theoretical analysis of the optimal trigger for index insurance for frost damage to crops

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Crop insurance is undoubtedly an extremely valuable element in protecting agricultural businesses, but in many cases standard indemnity‐based products have had very low uptake due to high transaction costs elevating premiums to unaffordable levels.
Amogh Prakasha Kumar   +2 more
wiley   +1 more source

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