Results 31 to 40 of about 145,077 (107)

Dynamic Event‐Triggered Robust Model Predictive Control for Quadrotor Trajectory Tracking

International Journal of Robust and Nonlinear Control, Volume 36, Issue 6, Page 3676-3688, April 2026.
ABSTRACT This paper addresses the trajectory tracking problem for a full‐state quadrotor subject to physical model constraints and unknown external disturbances. A robust tube‐based model predictive control (MPC) approach is successfully applied to the system, which is subject to bounded disturbances and hard constraints.
Ali Can Erüst, Fatma Yıldız Taşcıkaraoğlu, İbrahim Beklan Küçükdemiral   +2 more
wiley   +1 more source

Three‐Dimensional Lightning Characteristics of Severe Convective Weather in Shanghai

Meteorological Applications, Volume 33, Issue 2, March/April 2026.
Using 2022–2024 ADTD data, this study analyzes 3D lightning in Shanghai's severe convection. Activity peaks in August and afternoon hours, varies by weather type, and concentrates spatially in Pudong and Chongming. Results provide key references for selecting lightning indicators in forecasting and warning systems. ABSTRACT Using ADTD three‐dimensional
Gaoyue Gu, Zhisu Wang, Peng Wang
wiley   +1 more source

Coevolution of phyllosilicate, carbon, sulfide, and apatite in Ryugu's parent body

Meteoritics &Planetary Science, Volume 59, Issue 8, Page 2073-2096, August 2024.
Abstract We analyzed an asteroid Ryugu sample returned to Earth by JAXA's Hayabusa2 mission using nanoIR, SEM, and TEM microscopy. We identified multiple distinct carbon reservoirs within the phyllosilicate matrix and demonstrate infrared spectral affinities for some of the carbon to insoluble organic matter (IOM).
Zack Gainsforth, Gerardo Dominguez, Kana Amano, Megumi Matsumoto, Yuri Fujioka, Eiichi Kagawa, Tomoki Nakamura, Shogo Tachibana, Tomoyo Morita, Mizuha Kikuiri, Hisayoshi Yurimoto, Takaaki Noguchi, Ryuji Okazaki, Hikaru Yabuta, Hiroshi Naraoka, Kanako Sakamoto, Toru Yada, Masahiro Nishimura, Aiko Nakato, Akiko Miyazaki, Kasumi Yogata, Masano Abe, Tatsuaki Okada, Tomohiro Usui, Makoto Yoshikawa, Takanao Saiki, Satoshi Tanaka, Fuyuto Terui, Satoru Nakazawa, Sei‐ichiro Watanabe, Yuichi Tsuda, Hayabusa2 Initial Analysis Stone Team   +31 more
wiley   +1 more source

Identification of Supercooled Cloud Water by FY-4A Satellite and Validation by CALIPSO and Airborne Detection

, 2022
Cold clouds are the main operation target of artificial precipitation enhancement, and its key is to find a supercooled cloud water area where the catalyst can be seeded to promote the formation of precipitation particles and increase precipitation to ...
Yi Zeng, Zhiguo Yue, Xiaohong Xu, Jin Wang, Yannian Zhu, Guihua Liu, Pu Liu, Qiujuan Feng, Xing Yu, Jin Dai   +9 more
core   +1 more source

Surface‐Guided Crystallization of Xanthine Derivatives for Optical Metamaterial Applications

Advanced Materials, Volume 36, Issue 8, February 22, 2024.
Millimeter sized extremely birefringent thin crystalline sheets formed from the small organic molecules theophylline and etophylline with controlled orientation are grown from solution via epitaxy with a quartz substrate. The films are then used to fabricate flat polarization‐dependent optical metamaterials.
Angelica Niazov‐Elkan, Margarita Shepelenko, Lotem Alus, Miri Kazes, Lothar Houben, Katya Rechav, Gregory Leitus, Anna Kossoy, Yishay Feldman, Leeor Kronik, Peter G. Vekilov, Dan Oron   +11 more
wiley   +1 more source

Improving Forecast of Severe Oceanic Mesoscale Convective Systems Using FY-4A Lightning Data Assimilation with WRF-FDDA

, 2022
The Fengyun-4A (FY-4A) geostationary satellite carries the Lightning Mapping Imager that measures total lightning rate of convective systems from space at high spatial and temporal resolutions.
Hao Sun, Haoliang Wang, Yubao Liu, Shiye Huang, Qilin Zhang, Jing Yang, Jiaying Gu, Yingting Zeng   +7 more
core   +1 more source

Comparison of FY-4A Satellite LMI Data and Ground-based Lightning Detection Data in Beijing-Tianjin-Hebei Region

应用气象学报
Based on lightning groups detected by lightning mapping imager (LMI) of FY-4A meteorological satellite and lightning electromagnetic pulse (LEMP) detected by DDW1 sensors of national lightning detection system from April to August during 2021-2023 ...
Yao Huiru, Liu Yong, Li Yafei, Cui Danyang, Zhou Yanchuan   +4 more
doaj   +1 more source

Improving prediction of short-duration heavy rainfall in Guangxi, China during the pre-summer rainy season based on Fengyun-4A lightning frequency and a machine learning algorithm

Frontiers in Earth Science
IntroductionThis study investigated the relationships between short-duration heavy rainfall (SDHR) events and lightning activity over Guangxi, China, during the pre-summer rainy season from 2019 to 2023.MethodsThe analysis was conducted using the ...
Weixiang Huang, Xiaoli Luo, Wei Zhang, Bo Feng, Xiaofei Xia, Chenying Yi, Weijun Hu   +6 more
doaj   +1 more source

Corrected event dataset of FY-4A LMI, 2019–2023

Abstract. The Lightning Mapping Imager (LMI) aboard the Fengyun-4A (FY-4A) satellite, once one of the only two geostationary lightning detection payloads operating in space, has accumulated a substantial volume of observational data. Extensive efforts have been made to correct lightning geolocation deviations, including payload misalignment correction,
Yuansheng Zhang, Xiushu Qie, Rubin Jiang, Dongjie Cao, Jing Yang, Dongfang Wang, Mingyuan Liu, Dongxia Liu, Zhuling Sun, Hongbo Zhang, Shanfeng Yuan   +10 more
openaire   +2 more sources

The Impacts of Assimilating Fengyun-4A Atmospheric Motion Vectors on Typhoon Forecasts

, 2023
Atmospheric motion vectors (AMVs), known as cloud track winds, have positive impacts on global numerical weather forecasts (NWP). In this study, AMVs that were retrieved from Fengyun-2G and Fengyun-4A were compared in their data quality and impacts on ...
Keyi Chen, Peigen Guan
core   +1 more source