Results 81 to 90 of about 101,355 (268)

Present State of UAV and Applications for Civil Engineering [PDF]

, 2016
UAV (Unmanned Aerial Vehicle) is effective for remote sensing and obtains high-resolution data at low cost rather than satellite images and aerial photos.
山田, 凱登, 小川, 進, 大坪, 俊太郎, 日高, 悠広   +3 more
core  

UAV-GESTURE: A Dataset for UAV Control and Gesture Recognition [PDF]

, 2019
Current UAV-recorded datasets are mostly limited to action recognition and object tracking, whereas the gesture signals datasets were mostly recorded in indoor spaces.
Perera, Asanka G., Chahl, Javaan, Asanka G. Perera, Perera, A.G., Yee Wei Law, Chahl, J., Javaan Chahl, Law, Yee Wei, Law, Y.W.   +8 more
core   +1 more source

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

Scientific 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, Yaofeng Feng, Xikun Lu, Li Li   +3 more
doaj   +1 more source

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

ISPRS 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, Hongmei Zhang, Chao Li, Sining Xu   +3 more
doaj   +1 more source

Analysis on the Propeller Slipstream Interference with Autorotating Rotor Aerodynamic Characteristics

Hangkong gongcheng jinzhan, 2020
The propeller slipstream passed through the rotor plane when the autogyro is flying forward, will produce the unsteady aerodynamic interference on the autorotating rotor.
WU Weiwei, MA Cunwang, SUN Kaijun
doaj   +1 more source

Asymmetric Whisker‐Inspired Sensor Pairs for Enhanced Airflow Sensing on Drones

Advanced Intelligent Systems, EarlyView.
This work incorporates asymmetric cross‐sections into a whisker‐inspired sensor pair to enhance airflow sensing. By comparing signals between two offset asymmetric whiskers, the system improves flow heading estimation and identifies the presence of fan‐generated wind during quadrotor flight.
Teresa A. Kent, Lenworth Thomas, Mitra J. Hartmann, Sarah Bergbreiter   +3 more
wiley   +1 more source

Prospecting of Architectural Features Using LiDAR‐UAV Technology, Deep Neural Networks and Visualization Techniques: A Case Study in Kuélap and Cambolín (NW Peru)

Archaeological Prospection, EarlyView.
ABSTRACT High‐resolution and accurate synoptic images of terrestrial topography, even in densely forested areas, have proven valuable for archaeology by enabling the identification and characterization of relief patterns associated with ancient human activities. This study presents a novel approach that integrates digital terrain models (DTMs) obtained
Jhon A. Zabaleta‐Santisteban, Rolando Salas López, Angel J. Medina‐Medina, Katerin M. Tuesta‐Trauco, Abner S. Rivera‐Fernandez, Nerci M. Noriega‐Salazar, José A. Sánchez‐Vega, Teodoro B. Silva‐Melendez, Marlen A. Grandez‐Alberca, Jhonsy O. Silva‐López, Nilton B. Rojas‐Briceño, Manuel Oliva‐Cruz, Alexander Cotrina‐Sanchez, Elgar Barboza   +13 more
wiley   +1 more source

A Development In Semi Automatisation Of UAV Terrestrial Direct Georeference [PDF]

, 2016
Unmanned Aerial Vehicle (UAV) can be used together with a Robotic Total Station in Terrestrial Direct Georeference system. More sophisticate terrestrial survey equipment can identify UAV postion automatically, this ability eliminate the problem of moving
Deni S, Asep Yusup S, Hendriatiningsih S
core  

Aerodynamic Optimization Design of the Rotor Blade of a Tilt-rotor Aircraft

Hangkong gongcheng jinzhan, 2019
The aerodynamic design of tilt-rotor needs to synthetically consider the different requirements in helicopter mode and fixed-wing aircraft mode. The multi-objective genetic algorithm based on Kriging surrogate model is used to establish an optimization ...
Sun Kaijun, Zhang Lian, Fu Yiwei, Yu Yueyang   +3 more
doaj   +1 more source

A Geomorphometric Approach to Estimate the Deterioration of Earthen Archaeological Sites by Rainfall and Diffusion Processes: The Huaca Chornancap (Eighth–14th Century ad), Lambayeque, Peru

Archaeological Prospection, EarlyView.
ABSTRACT Rain‐induced erosion processes can severely damage Earthen archaeological sites. Huaca Chornancap (HCH; eighth–14th century ad) is a platform located in the Lambayeque region (Peru) exposed to seasonal rain due to El Niño Southern Oscillation (ENSO).
Luigi Magnini, Maria Ilaria Pannaccione Apa, Robert Gutiérrez Cachay, Marco Fernández Manayalle, Carlos Eduardo Wester La Torre, Guido Ventura   +5 more
wiley   +1 more source