Showing 301 - 320 results of 407 for search '"aerodynamic"', query time: 0.05s Refine Results
  1. 301

    Nonlinear Random Response Analyses of Panels Considering Transverse Shear Deformations under Combined Thermal and Acoustic Loads by Yeong-Nam Kim, Jae-Sang Park, Eun-Soo Go, Min-Hyuk Jeon, In-Gul Kim

    Published 2018-01-01
    “…The panel structures of flight vehicles at supersonic or hypersonic speeds are subjected to combined thermal, acoustic, and aerodynamic loads. Because of the combined thermal and acoustic loads, the panel structure may exhibit nonlinear random vibration responses, such as the snap-through phenomenon and random vibrations. …”
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  2. 302

    Long-term Measurements of PM2.5 Concentrations in Lubbock, Texas by Mary C. Kelley, Mallory M. Brown, Clifford B. Fedler, Karin Ardon-Dryer

    Published 2020-04-01
    “…Abstract Aerosol particles, such as PM2.5 (particulate matter with an aerodynamic diameter ≤ 2.5 µm), are an important yet variable component of our atmosphere; their presence defines the air quality and profoundly affects human health. …”
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  3. 303

    New Method for Analyzing the Flutter Stability of Hingeless Blades with Advanced Geometric Configurations in Hovering by Si-wen Wang, Jing-long Han, Quan-long Chen, Hai-wei Yun, Xiao-mao Chen

    Published 2020-01-01
    “…The MDLM, which is suitable to calculate the unsteady aerodynamic force of nonplanar rotor blade in hovering, is developed from the doublet-lattice method (DLM). …”
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  4. 304

    Impact of monthly air pollution and weather conditions on cardiorespiratory mortality in Portuguese Metropolitan Areas by Ediclê de Souza Fernandes Duarte, Paulo Sérgio Lucio, Lígia Henriques-Rodrigues, Maria João Costa

    Published 2025-02-01
    “…Abstract This study analyses cardiorespiratory mortality rates (CARDIO) and their association with air pollutants - particulate matter with aerodynamic diameters lower of equal to 10 or 2.5 (µm) (PM10, PM2.5), carbon monoxide (CO), nitrogen dioxide (NO2), ozone (O3) - and meteorological variables (temperature, humidity, wind speed, direction) in the Lisbon (LMA) and Porto (PMA) metropolitan areas from 2011 to 2020. …”
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  5. 305

    Research on SiC Speed Controller for High-Voltage Distributed Electric Propulsion System by Labin Wang, Yunhan He, Yun Xu, Li Fan, Junhua Xiang

    Published 2024-01-01
    “…Despite its advantage which helps to build efficient aircraft aerodynamic layout, there are more cables in the distributed propulsion system, which accounts for most of the weight of the aircraft. …”
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  6. 306

    Multiple PM Low-Cost Sensors, Multiple Seasons’ Data, and Multiple Calibration Models by S Srishti, Pratyush Agrawal, Padmavati Kulkarni, Hrishikesh Chandra Gautam, Meenakshi Kushwaha, V. Sreekanth

    Published 2023-02-01
    “…Abstract In this study, we combined state-of-the-art data modelling techniques (machine learning [ML] methods) and data from state-of-the-art low-cost particulate matter (PM) sensors (LCSs) to improve the accuracy of LCS-measured PM2.5 (PM with aerodynamic diameter less than 2.5 microns) mass concentrations. …”
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  7. 307

    A Novel Sustainable Semiconductor/Metal-organic Framework Coated Electret Filter for Simultaneous Removal of PM2.5 and VOCs by Yu Zhang, Zan Zhu, Wei-Ning Wang, Sheng-Chieh Chen

    Published 2023-03-01
    “…Abstract A MIL-125-NH2 metal-organic framework (MOF) coated electret filter, named E-MOFilter, was previously developed to simultaneously remove PM2.5 (particulate matter less than 2.5 µm in aerodynamic diameter) and volatile organic compounds (VOCs, e.g., toluene). …”
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  8. 308

    Finite element analysis and artificial neural network for stress distribution of an aircraft model in a wind tunnel by Ahmed Al-Mulla Khalaf, Sinan Al-Haddad, Bilal Al-Oubaidi, Naseem Ibrahim, Fawaz Abdulwahed, Athraa Hilal

    Published 2025-01-01
    “…Wind tunnels are instrumental in the aerodynamic analysis of aircraft model structures, enabling the replication of real circumstances for better design and performance evaluation. …”
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  9. 309

    Possibility-Based Sizing Method for Hybrid Electric Aircraft by Zin Win Thu, Maxim Tyan, Yong-Hyeon Choi, Mohammad Irfan Alam, Jae-Woo Lee

    Published 2025-01-01
    “…Sensitivity analysis shows that aerodynamic design, airframe, and propulsion efficiencies significantly impact maximum takeoff mass. …”
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  10. 310

    Assessment of Malaysia-wide PM2.5 Forecasts from a Global Model by Zhixian Tan, Mohd Talib Latif, Matthew J. Ashfold

    Published 2023-06-01
    “…Abstract Airborne particulate matter with an aerodynamic diameter of less than 2.5 µm (PM2.5) is a major air pollutant worldwide. …”
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  11. 311

    DEVELOPMENT OF A NEW GENERATION OF TORNUM REX MINING GRAIN DRYERS AND THEIR DESIGN METHODS by V. Fitsyk

    Published 2024-12-01
    “…Based on the results obtained and the aerodynamic analysis of air flows, the design of a new generation TORNUM REX series grain dryer was developed. …”
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  12. 312

    Improving WRF-Chem PM2.5 predictions by combining data assimilation and deep-learning-based bias correction by Xingxing Ma, Hongnian Liu, Zhen Peng

    Published 2025-01-01
    “…In numerical model simulations, data assimilation (DA) on the initial conditions and bias correction (BC) of model outputs have been proven to be promising approaches to improving PM2.5 (particulate matter with an aerodynamic equivalent diameter of ≤ 2.5 μm) predictions. …”
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  13. 313

    Main Rotor Wake Interference Effects on Tail Rotor Thrust in Crosswind by Chang Wang, Min Qi Huang, Shuai Ma, Hao Wen Wang, Min Tang

    Published 2021-01-01
    “…Results indicated that the MR disc vortex has a remarkable interference effect on the TR aerodynamic performance characteristic and that the effect is sensitive to the wind speed, wind direction, and MR disc loading. …”
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  14. 314

    Association of extreme high temperature weather with non-accidental deaths among residents of Yichang city: a time-stratified case-crossover analysis by Xiaoyan MING, Yang HAN, Zhongcheng YANG, Zaoxia WANG, Shuguang XIE, Chuangang FAN

    Published 2024-10-01
    “…After controlling for relative humidity (RH), fine particulate matter ≤ 2.5 μm in aerodynamic diameter (PM2.5), inhalable particulate matter ≤ 10 μm in aerodynamic diameter (PM10), sulfur dioxide (SO2), nitrogen dioxide (NO2), ozone (O3), carbon monoxide (CO), and the gender and age of the deceased, the time-stratified case-crossover analysis showed that all nine extreme high temperature events were positively correlated with increased risk of non-accidental deaths among Yichang residents, with a lag effect Except for the P92.5-2 d and P92.5-3 d events, which lasted until lag day 3, the effects of the other seven extreme high temperature events lasted until lag day 1. …”
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  15. 315

    Association between short-term exposure to air pollutants and daily stroke incidence among residents in Qingdao city: a time series analysis of disease surveillance, environmental,... by Nan GE, Lu PAN, Xin ZHANG, Dandan LI, Yin WANG, Jingya YIN, Hui ZHOU, Haoyan YU, Xiuqin ZHANG, Chunsheng XU, Yuan FANG, Yan MA, Bingling WANG, Haiping DUAN

    Published 2024-10-01
    “…The distributed Lag nonlinear model (DLNM) was used to analyze the associations between daily mean concentrations of particulate matter with an aerodynamic diameter of less than 2.5 mum (PM2.5), particulate matter with an aerodynamic diameter of less than 10 mum (PM10), carbon monoxide (CO), ozone (O3), sulfur dioxide (SO2), and nitrogen dioxide (NO2) with daily stroke incidence, while controlling for the effects of potential confounders such as long-term trend and day of the week in Qingdao city. …”
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  16. 316

    Air Pollution Mediates the Association between Human Mobility and COVID-19 Infection by Kang Lo, Nguyen Thanh Tung, Chih-Da Wu, Huynh Nguyen Xuan Thao, Hoang Ba Dung, Tran Phan Chung Thuy, Hsiao-Chi Chuang

    Published 2021-12-01
    “…We observed that levels of particulate matter with an aerodynamic diameter of < 10 µm (PM10), PM2.5, NO2, and CO mediated associations of walking, driving, and using public transport with confirmed COVID-19 cases (p < 0.05). …”
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  17. 317

    Design of Ice Tolerance Flight Envelope Protection Control System for UAV Based on LSTM Neural Network for Detecting Icing Severity by Ting Yue, Xianlong Wang, Bo Wang, Shang Tai, Hailiang Liu, Lixin Wang, Feihong Jiang

    Published 2025-01-01
    “…Icing on an unmanned aerial vehicle (UAV) can degrade aerodynamic performance, reduce flight capabilities, impair maneuverability and stability, and significantly impact flight safety. …”
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  18. 318

    Comparison of PM2.5 Chemical Compositions during Haze and Non-haze Days in a Heavy Industrial City in North China by Menghui Li, Liping Wu, Xiangyan Zhang, Xinwu Wang, Wenyu Bai, Jing Ming, Chunmei Geng, Wen Yang

    Published 2020-05-01
    “…Abstract This study aimed to determine the chemical composition, sources and contributing factors of airborne PM2.5 (particulate matter with an aerodynamic diameter ≤ 2.5 µm) during a haze episode in Zibo, a heavy industrial city in China. …”
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  19. 319

    Study of Wind Loads and Wind Speed Amplifications on High-Rise Building with Opening by Numerical Simulation and Wind Tunnel Test by Fu-Bin Chen, Xiao-Lu Wang, Yun Zhao, Yuan-Bo Li, Qiu-Sheng Li, Ping Xiang, Yi Li

    Published 2020-01-01
    “…Facade openings have often been used as aerodynamic measures for wind-resistant design of high-rise buildings to meet the requirement of structural safety and comfort. …”
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  20. 320

    Investigation of the Normal Blowing Approach to Controlling Wingtip Vortex Using LES by Yubiao Jiang, Wanbo Wang, Chen Qin, Patrick N. Okolo, Kun Tang

    Published 2021-01-01
    “…The characteristics and control of a wingtip vortex are of great significance when considering drag reduction and flight safety of transportation aircrafts. The associated aerodynamic phenomenon resulting from rolling up of a wingtip vortex includes boundary layer flow, shear layer separation, and vortex breakdown, while the interaction of a wingtip vortex with the airframe causes induced drag, wingtip noise, etc. …”
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