Results 71 to 80 of about 51,014 (299)
Remote Sensing in Ecology and Conservation, EarlyView.Cycles of dieback and recovery drove mangrove forest dynamics at the Albert and Leichhardt Rivers (Gulf of Carpentaria, Queensland, Australia) over 36 years (1987–2023). Landward margins were the most affected by reduced tidal inundation when the alignment of low lunar declination suppressed tidal range and extreme El Niño phases lowered mean sea level.
Rogerio Victor S. Gonçalves +4 more
wiley +1 more source
Review of coupled rotor-fuselage dynamics design methodology for coaxial rigid rotor helicopter
Hangkong gongcheng jinzhanThe coaxial rigid rotor configuration offers compact design, high hover efficiency, and high-speed potential, but its coupled rotor-fuselage dynamics remain a key bottleneck. This paper reviews progress and challenges in three areas: theoretical modeling,
GAO Xiaodong +4 more
doaj +1 more source
THE EFFECT OF DIFFERENT OPTIONS OF BLADES MAIN ROTOR ON THE X-SHAPED TAIL ROTOR OF THE MI-171 LL
Научный вестник МГТУ ГА, 2018 This paper describes the effect of different rotor blades on the X-shaped tail rotor of the Mi-171 LL, observed conducting flight tests. The tests were carried out on the same helicopter in the similar atmospheric conditions.The objective of the tests ...
V. A. Ivchin +2 more
doaj +1 more source
Remote Sensing in Ecology and Conservation, EarlyView.This study evaluates the performances of synchronous aerial visible (VIS) and thermal infrared (TIR) imagery for detecting great blue heron (Ardea herodias) nests and individuals using a YOLO11n model. VIS and TIR images were automatically aligned using deep learning, and both early and late fusion approaches were tested.
Camille Dionne‐Pierre +6 more
wiley +1 more source
Design of Swarm Intelligence Control Based on Double-Layer Deep Reinforcement Learning
Applied SciencesTraditional methods have limitations regarding efficient collaboration and dynamic response in complex dynamic environments. Although existing swarm intelligence control methods possess certain adaptive optimization capabilities, they still face ...
Xiangpei Yan +4 more
doaj +1 more source
GARTEUR Helicopter Cooperative Research
, 2010 This paper starts with an overview about the general structure of the Group for Aeronautical Research and Technology in EURope (GARTEUR). The focus is on the activities related to rotorcraft which are managed in the GARTEUR Helicopter Group of ...
Pahlke, Klausdieter
core
Cannabis Agritourism and Local Pathways Toward Sustainable Development Goals in Northern California
Sustainable Development, EarlyView.ABSTRACT Recent acceleration in global cannabis legalization offers a new context for examining the multiscale links between agritourism, sustainability, and international policy frameworks. In this study, Responsible Tourism is used to conceptualize cannabis agritourism in Northern California's Emerald Triangle as a strategy that may advance targets ...
Susan Dupej +2 more
wiley +1 more source
Analytical and Experimental Study of Key Performance of Helicopter Rotor Torsion–Tension Straps
ActuatorsAs a crucial component of rotor systems, tension and torsion (TT) straps, recognized for their compact structure, have been adopted in advanced helicopters such as the SB > 1, EC145, and Mi-26.
Yamin Wang, Ruchuan Zhou, Wenjun Huang
doaj +1 more source
Strategic Management Journal, EarlyView.Abstract Research Summary Despite the importance of resource reallocation in shaping a variety of strategic outcomes, strategy scholars have paid only limited attention to the processes by which firms reallocate their resources across successive systemic innovations.
Gino Cattani +2 more
wiley +1 more source
Longitudinal Integrated Attitude Control Law Design and Robustness Analysis of Tiltrotor Aircraft
Nanjing Hangkong Hangtian Daxue XuebaoSince the tiltrotor aircraft needs to switch configurations among helicopter mode， transition mode， and fixed-wing mode within its flight envelope， and its dynamic characteristics vary significantly under different configurations， it is necessary to ...
CHEN Guojun, LIU Yi, ZHANG Wei
doaj +1 more source