Results 51 to 60 of about 45,761 (309)

Detection of Low-Altitude Unmanned Vehicle and Flying Bird by Improved YOLOv7

International Journal of Aerospace Engineering
With the rapid development of low-altitude economy and unmanned aerial vehicle (UAV) technologies, reliable UAV surveillance has become increasingly important for aviation safety and low-altitude airspace management. However, accurate recognition of UAVs
Weiyu Xie, Qiang Zhang, Tanwuguo Chen
doaj   +1 more source

Analysis of the Relationship between Upper-Level Aircraft Turbulence and the East Asian Westerly Jet Stream

Atmosphere
The jet stream is a primary factor contributing to turbulence, especially for upper-level aircraft. This study utilized pilot reports and ERA5 data from 2023 to investigate the relationship between upper-level turbulence and the East Asian westerly jet ...
Kenan Li, Xi Chen, Liman A, Kaijun Wu, Haiwen Liu, Fengjing Dai, Tiantian Yang, Jia Yu, Kehua Wang   +8 more
doaj   +1 more source

Dynamic Aircraft Wake Separation Based on Velocity Change

Aerospace, 2022
Traditional research on static wake-vortex reduction usually considers only the influence of external environmental factors, while ignoring the dynamic change in an aircraft’s flight state.
Weijun Pan, Zirui Yin, Yuming Luo, Anding Wang, Yuanjing Huang   +4 more
doaj   +1 more source

Causal‐Guided Ultra‐Long‐Term Time Series Forecasting Via Anticipated Covariates

Advanced Science, EarlyView.
Often treated as unknown, information from the future remains underutilized.We demonstrate that in a coupled dynamical system, providing the future state of the effect enables accurate forecasting of the cause for a long timesteps. A time series forecasting paradigm that introduces anticipated covariates to represent such known future states is ...
Jintong Zhao, Yufei Liu, Ruixi Huang, Zhongxue Gan, Siyang Leng   +4 more
wiley   +1 more source

Air traffic complexity in future Air Traffic Management systems

Journal of Aerospace Operations, 2012
In this paper we study the issue of characterizing the complexity of air traffic to support Air Traffic Management (ATM) operations. We discuss, in particular, the features of a complexity metric that are relevant for application to future ATM systems where part of the responsibility for separation assurance and trajectory management operations is ...
PRANDINI, MARIA, V. Putta, J. Hu
openaire   +2 more sources

The KIF6‐RBP Complex Orchestrates mRNA Transport Required for Sperm Flagellar Assembly

Advanced Science, EarlyView.
Two homozygous deleterious KIF6 variants are identified in unrelated men with impaired sperm motility. Mouse models and multi‐omics analyses reveal that KIF6 cooperates with the RNA‐binding proteins FMRP and FXR1 to deliver mRNAs essential for sperm flagellar assembly, linking disrupted mRNA transport to reduced abundance of key structural and ...
Chunbo Xie, Sibing Yi, Xinle Lin, Shen Zhang, Weili Wang, Shimin Yuan, Lanlan Meng, Yong Li, Chen Tan, Chunjia Wei, Yanyan Yu, Yaoqiong Liang, Huan Zhang, Liang Hu, Guangxiu Lu, Wenbin He, Qianjun Zhang, Juan Du, Ge Lin, Chaofeng Tu, Yue‐Qiu Tan   +20 more
wiley   +1 more source

The European Air Traffic Flow Management Problem

Transportation Science, 2006
Air traffic flow management in Europe has to deal as much with capacity constraints in en route airspace as with the more usual capacity constraints at airports. The en route sector capacity constraints, in turn, generate complex interactions among traffic flows.
LULLI, GUGLIELMO, Odoni, A.
openaire   +2 more sources

PRMT5‐Dependent Stabilization of VPS34 Orchestrates Copper Trafficking to Shield Cancer Cells from Cuproptosis and Radiotherapy

Advanced Science, EarlyView.
Radioresistance arises partly from tumor cells evading cuproptosis via unknown defenses. This study reveals that the PRMT5‐VPS34 axis acts as a radiation‐activated anticuproptotic mechanism: PRMT5 methylates VPS34 at Arg174, recruiting USP10 to remove K48‐linked ubiquitination and prevent degradation.
Wei Chen, Ming‐Ying Xiao, Lan‐Lan Guo, Hao‐Yue Hu, Sui‐Xian Zhang, Bai‐Qiang Dong, Chen‐Fei Wu, Xia‐Hang Huang, Li Li, Run‐Zhe Chen, Yuan‐Yang Huang, Ying Jin, Hai Song, Ying Wang, Qi‐Wen Li, Ming Chen, Xuan Li, Yuan‐Yuan Chen   +17 more
wiley   +1 more source

Unraveling Bone‐Skin Crosstalk Enables miRNA Nanoformulation for Cutaneous Neurovascular Reconstruction in Diabetic Mice

Advanced Science, EarlyView.
This study unravels that bone fracture accelerates diabetic wound healing by releasing exosomal microRNA (miR‐130b‐3p). To mimic this bone‐skin crosstalk, we engineered a self‐assembling agomir‐130b‐3p nanocomplex. Delivered via a photocrosslinkable hydrogel, this bio‐inspired therapy provides sustained localized agomir release.
Tao Shen, Hongdou Shen, Weiyue Wu, Zhuoying Jiang, Bin Liu, Yansi Xian, Rui Peng, An Yan, Yu Ben, Yong Shi, Xiang Chen, Baosheng Guo, Qing Jiang, Weijun Wang, Pingqiang Cai   +14 more
wiley   +1 more source

Multi-constraint calibrated GP2SFCA identifies dual vulnerability in private-vehicle access to Tertiary Grade‑A emergency care of Chengdu

Scientific Reports
Evaluating private vehicle access to emergency care is crucial for public health resource planning. However, conventional models frequently depend on static traffic data and subjective parameters, neglecting the behavioral complexities involved in ...
Chen Luo, Chunyang Liu, Tianshun Ma, Xinrong Hu, Haoyuan Li, Xutong Wang   +5 more
doaj   +1 more source