Results 71 to 80 of about 129,505 (245)

GRASP: Graph-Enhanced Retrieval for Accurate Schema Pruning in Text-to-SQL

open access: yesISPRS International Journal of Geo-Information
Recent advances in land system research depend heavily on efficient access to large-scale, multi-source remote sensing spatiotemporal databases. Although Text-to-SQL provides natural language interfaces, the scale and spatial complexity of remote sensing
Xiangjun Cheng   +3 more
doaj   +1 more source

Perovskite Photodetectors at the Intelligence Frontier: From Tunable Materials to Adaptive Optoelectronic Systems

open access: yesCarbon Energy, EarlyView.
This comprehensive review presents a progressive roadmap for perovskite vision detectors. Centered on perovskite‐based artificial perception, the graphic illustrates a systematic evolution: starting with fundamental material engineering and device architectures, advancing toward complex functional strategies such as flexible neuromorphic imaging ...
Chenglong Li   +14 more
wiley   +1 more source

A repetitive learning based fractional order parameter optimization algorithm for extended Wiener systems with backlash nonlinearity subject to binary-valued data

open access: yesScientific Reports
An accurate estimation of system parameters is crucial for ensuring high-performance modelling and adaptive control of nonlinear systems, particularly in quantized environments. However, existing multi-innovation estimation algorithms often struggle from
Yinmiao Gong   +3 more
doaj   +1 more source

Optimizing Spatial State Representation in Reinforcement Learning for Coverage Path Planning in UAV Search Missions

open access: yesDrones
To enhance path planning efficiency in unmanned aerial vehicle (UAV) search missions in complex environments, this paper proposes a coverage path planning (CPP) algorithm for a UAV that integrates the deep Q-network (DQN) with the A* algorithm (DQN-A ...
Hu Yuan   +5 more
doaj   +1 more source

A pan-tilt camera Fuzzy vision controller on an unmanned aerial vehicle [PDF]

open access: yes, 2009
is paper presents an implementation of two Fuzzy Logic controllers working in parallel for a pan-tilt camera platform on an UAV. This implementation uses a basic Lucas-Kanade tracker algorithm, which sends information about the error between the center ...
Campoy Cervera, Pascual   +10 more
core   +1 more source

Impact of Drone Versus Car Transport on Anti‐Doping Sample Integrity Over Short Distances: A Proof‐Of‐Concept Study

open access: yesDrug Testing and Analysis, EarlyView.
This proof‐of‐concept study evaluated the impact of short‐distance drone transport on anti‐doping sample integrity compared with traditional car transport. Targeted assays and untargeted metabolomics revealed equivalent biological profiles between methods, confirming that drone delivery preserves sample integrity for the athlete biological passport ...
I. Al‐Mohannadi   +13 more
wiley   +1 more source

Finite-Time Backstepping Control for Quadrotors With Disturbances and Input Constraints

open access: yesIEEE Access, 2018
This paper proposes a novel finite-time backstepping framework combined with an auxiliary input-saturation compensator and applies it to tackle the trajectory tracking problem of quadrotors with disturbances and input constraints. Finite-time convergence
Tao Jiang, Defu Lin, Tao Song
doaj   +1 more source

LanderVT/SMB-from-UAV: SMB from UAV

open access: yes, 2021
Matlab code to model the surface mass balance from UAV observations and ice thickness ...
Lander Van Tricht
core   +1 more source

Drought Risk in Mango and Avocado Orchards: Insights Into Plant Water Relations and Irrigation‐Related Agronomic Solutions

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT Climate change is making water availability more uncertain, with growing consequences for the productivity and long‐term sustainability of tropical and subtropical fruit orchards. Mangifera indica L. and Persea americana Mill. both require large amounts of water to sustain growth and productivity.
Eleonora Cataldo
wiley   +1 more source

Assessing plant water status: Part 2 – Non‐destructive and remote sensing approaches

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract Precise, real time and non‐destructive assessment of plant water status is important for advancing plant physiological understanding, optimizing water usage, improving crop resilience and supporting precision agriculture in the face of increasingly variable climatic conditions.
Naila Farooq   +7 more
wiley   +1 more source

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