Results 61 to 70 of about 12,358,950 (150)

Multi-Constrained Three-Dimensional Cooperative Trajectory Planning for Multi-UAVs Based on a High-Performance Meta-Heuristic Method

Drones
Unmanned aerial vehicle (UAV) path planning is one of the core technologies for realizing precision agricultural operations. In complex farmland environments involving terrain obstacles, tall tree canopies, high-voltage power lines, and restricted no-fly
Zilin Cai, Zhongjun Yu, Haibo Niu, Yuxing Zhang   +3 more
doaj   +1 more source

GenTrajRec: A Graph-Enhanced Trajectory Recovery Model Based on Signaling Data

Applied Sciences
Signaling data are records of the interactions of users’ mobile phones with their nearest cellular stations, which could provide long-term and continuous-time location data of large-scale citizens, and therefore have great potential in intelligent ...
Hongyao Huang, Haozhi Xie, Zihang Xu, Mingzhe Liu, Yi Xu, Tongyu Zhu   +5 more
doaj   +1 more source

Person-environment fit: Project leader-stakeholder relationships in a complex project environment [PDF]

, 2011
In this paper, we develop a conceptual model to explore the perceived complementary congruence between complex project leaders and the demands of the complex project environment to understand how leaders’ affective and behavioural performance at work ...
Ashkanasy, Neal, Pisarski, Anne, Ashkanasy, Neal M., Mazur, Alicia K.   +3 more
core  

Spatiotemporal Landslide Monitoring in Complex Environments Using Radiative Transfer Model and SBAS-InSAR Technology

Land
Landslides are among the most frequent geological hazards, often resulting in casualties and economic losses, particularly in alpine valley areas characterized by complex topography and dense vegetation.
Bing Wang, Li He, Zhengwei He, Yongze Song, Rui Qu, Jiao Hu, Zhifei Wang, Zehua Zhang   +7 more
doaj   +1 more source

UAV route planning based on improved dynamic weighted A* algorithm

Journal of Hebei University of Science and Technology, 2018
With the expansion of high dimensional space in UAV trajectory planning, the flying environment of UAV is very complex, and the external threat of UAV is no longer a simple two-dimensional static threat.
Yan HE
doaj   +1 more source

Editorial: Cell polarity in a complex environment. [PDF]

Front Cell Dev Biol, 2023
Wu Y, Dong B, Lin BC.
europepmc   +1 more source

Kansas Environment, 2008

, 2008
No known reports between 2003 and 2007 2008 onward published biennially "The publication of the 2008 Kansas Environment report represents the return to a biennial report for the Division of Environment at the Kansas Department of Health and Environment."
Kansas. Department of Health and Environment
core   +1 more source

URT-YOLOv11: A Large Receptive Field Algorithm for Detecting Tomato Ripening Under Different Field Conditions

Agriculture
This study proposes an improved YOLOv11 model to address the limitations of traditional tomato recognition algorithms in complex agricultural environments, such as lighting changes, occlusion, scale variations, and complex backgrounds.
Di Mu, Yuping Guou, Wei Wang, Ran Peng, Chunjie Guo, Francesco Marinello, Yingjie Xie, Qiang Huang   +7 more
doaj   +1 more source

YOLOv8-FDF: A Small Target Detection Algorithm in Complex Scenes

IEEE Access
Synthetic Aperture Radar (SAR) finds widespread applications in environmental monitoring, disaster management, ship surveillance, and military intelligence.
Wenlong Jiang, Dezhi Han, Bing Han, Zhongdai Wu   +3 more
doaj   +1 more source

Global environment outlook GEO-4: Environment for development [PDF]

The Global Environment Outlook: environment for development (GEO-4) report is published in what may prove to be a remarkable year – a year when humanity faced up to the scale and pace of environmental degradation with a new sense of realism and honesty ...
United Nations Environment Programme
core   +1 more source