Results 21 to 30 of about 2,754,336 (275)

Oil Fumes, Flight Safety, and the NTSB [PDF]

Aerospace, 2021
During its investigations into a series of ten aircraft crashes from 1979 to 1981, US National Transportation Safety Board (NTSB) officials were presented with a hypothesis that “several” of the crashes could have been caused by pilot impairment from breathing oil fumes inflight. The NTSB and their industry partners ultimately dismissed the hypothesis.
Anderson, Judith, Scholz, Dieter
openaire   +2 more sources

Tower view object detection based on ECIOU structure embedded in YOLO

Hangkong gongcheng jinzhan
In view of the problems that the existing tower view target detection system is prone to large positioning deviation and low small target detection accuracy，this paper proposes an aircraft target detection method based on the ECIOU structure embedded in ...
QIAN Jide, YAN Hao, LIANG Yan, ZENG Changchang, MOU Yihao   +4 more
doaj   +1 more source

DeCGAN: Speech Enhancement Algorithm for Air Traffic Control

Algorithms
Air traffic control (ATC) communication is susceptible to speech noise interference, which undermines the quality of civil aviation speech. To resolve this problem, we propose a speech enhancement model, termed DeCGAN, based on the DeConformer generative
Haijun Liang, Yimin He, Hanwen Chang, Jianguo Kong   +3 more
doaj   +1 more source

A Multi-Object Tracking Method in Moving UAV Based on IoU Matching

IEEE Access
Multi-object tracking (MOT) is widely applied in the field of computer vision. However, MOT from a drone’s perspective poses several challenging issues, such as small object size, large displacements of targets, and irregular motion of the ...
Yizhou Qian, Zaijun Wang, Yaowen Gao, Wenze Zhang, Hao Wang   +4 more
doaj   +1 more source

Lightweight Asymmetric Multimodal Fusion for Cross-Subject Emotion Recognition

IEEE Access
Addressing the dual challenges of constrained computational resources and modality-specific noise in wearable affective computing, existing symmetric fusion paradigms often overlook reliability disparities across modalities, which can induce multimodal ...
Lin Zhou, Zaijun Wang, Haixin Li, Sizhuang Lei, Xiaojun Qin   +4 more
doaj   +1 more source

Research on operational load assessment model for civil aviation high-plateau routes based on LSTM-XGBoost

Hangkong gongcheng jinzhan, 2020
This paper presents a hybrid LSTM-XGBoost model for operational load assessment on civil aviation high-plateau routes, addressing the limitations of single-model methods.
ZHANG Xianhao, WANG Chenxu, FENG Jiangyao   +2 more
doaj   +1 more source

Re‐Purposing Sapropterin (Kuvan) for ACTA2‐Related Multisystemic Smooth Muscle Dysfunction Syndrome: A Translational Mechanistic and First‐In‐Human Therapeutic Report

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Multisystemic smooth muscle dysfunction syndrome (MSMDS) is an ultra‐rare, ACTA2‐related disorder characterized by severe cerebrovascular disease, aortic aneurysms, and smooth muscle dysfunction. Using molecular dynamics simulations and in silico drug screening, we identified that sapropterin dihydrochloride (Kuvan) is a candidate capable of ...
Moran Hausman‐Kedem, Noa Bielopolski, Vijai Krishnan, Shane Wald‐Altman, Shelly I Shrian, Omer Bar‐Yosef, Livia Kapusta, Claire Shamber, Patricia L. Musolino, Miguel Weil   +9 more
wiley   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Non‐Additive Criteria Assessment in Sustainability Evaluation of High Entropy Alloys: A Toxicity‐Weighted Framework

Advanced Engineering Materials, EarlyView.
Sustainability assessment requires methodologies that appropriately distinguish between additive and non‐additive material properties. A toxicity‐weighted scoring system is developed and applied that accounts for the disproportionate influence of highly toxic constituents through nonlinear weighting functions, providing more realistic estimates than ...
Seth Mehalic, Oladele A. Ogunseitan, Julie M. Schoenung   +2 more
wiley   +1 more source

Numerical simulation study on flow and heat transfer characteristics of RP-3 aviation kerosene in a dimple-type U-tube

Hangkong gongcheng jinzhan, 2020
This study proposes a heat transfer enhancement design for aviation kerosene air-oil heat exchangers by integrating dimple surface textures into a U-tube.
DENG Zhibin, XU Ziyang, ZHAO Liang, LIU Xiang, ZHANG Tianlai, CHEN Yonggang, LI Shilin   +6 more
doaj   +1 more source