Dynamic Stiffness Measurements of Road Pavements by Means of Impact Hammer in a Non-Resonant Configuration by Matteo Bolognese, Erica Greco, Francesco Bianco, Gaetano Licitra

“…The different sources of noise in a vehicle have long been known, and they include noise from the engine and other mechanical parts, aerodynamic noise, and rolling noise. More specifically, the latter concerns the interaction between the tire and the road surface, and so it is also known as Tire–Road Noise (TRN). …”
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Numerical Analysis of a Small Pneumatic Hammer Performance Based on Evaluation Method of Friction Force by Un Hyok Yang, Tok Hyong Han, Un Chol Han, Il Gwang Tae, Ryo Myong Hong, Song Chol Kim

“…We could find from the experimental result that the friction force was about 0.8 N under the horizontal installation when there was no pressure supply, but it increased significantly, was 20 times greater than that without pressure supply, due to aerodynamic action by compressed air leaked from the annular gaps between the cylindrical matching surfaces of the components. …”
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STUDY ON THE STRUCTURAL CHARACTERISTICS OF LARGE WIND TURBINE COMPOSITE BLADE BASED ON BEND-TWIST COUPLING by ZHANG Li, MIAO WeiPao, LI Chun, YAN YangTian, LIU QingSong, WANG Bo

“…In order to study the structural characteristics of different types of bend-twist coupling blades, the NREL 5 MW wind turbine blade was used as the research object, combined with composite material laying design to establish finite element models of different BTC blades, the aerodynamic load of the blades were solved by CFD method. …”
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Gust Load Alleviation including Geometric Nonlinearities Based on Dynamic Linearization of Structural ROM by Chao An, Chao Yang, Changchuan Xie, Yang Meng

“…Nonlinear structure reduced order model (ROM) and nonplanar double-lattice method (DLM) are used for structural and aerodynamic modeling. The structural modeling method presented herein describes stiffness nonlinearities in polynomial formulation. …”
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The effect of manufacturing defects and license plate on the energy efficiency of solar vehicles by Burak İpek, Mehmet Yıldız, Tunahan Akış, Aytaç Gören

“…From this perspective, the aim of this study is to investigate the effect of manufacturing defects on the aerodynamic performance of solar vehicles. An analysis of these manufacturing defects at different vehicle speeds has been conducted. …”
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Multi-Sensor Instrument for Aerosol In Situ Measurements by Ilya Bruchkouski, Artur Szkop, Jakub Wink, Justyna Szymkowska, Aleksander Pietruczuk

“…To enhance particle transmission efficiency to the IAMU sensors, aerodynamic modeling of the inlet pipes was performed, accounting for particle density and diameter. …”
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Aircraft hybrid-electric environment for analysis and design (AHEAD) applied on a fixed-wing drone by Manuel A. Rendón, Patrícia H. Hallak, Yipsy Roque Benito, Marcelo Assato, Camila de Oliveira Cunha, Daniel Miranda Esther, Rafael Grande Pancini Delmonte, Denys Pinto Gonçalves

“…A typical mission is defined, and aerodynamic variables are calculated, as well as the fuel consumption for conventional propulsion. …”
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Possibility-Based Sizing Method for Hybrid Electric Aircraft by Zin Win Thu, Maxim Tyan, Yong-Hyeon Choi, Mohammad Irfan Alam, Jae-Woo Lee

“…Sensitivity analysis shows that aerodynamic design, airframe, and propulsion efficiencies significantly impact maximum takeoff mass. …”
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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

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

“…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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Performance of Partial and Cavity Type Squealer Tip of a HP Turbine Blade in a Linear Cascade by Levent Kavurmacioglu, Hidir Maral, Cem Berk Senel, Cengiz Camci

“…Numerical calculations indicate that partial and cavity squealer designs can be effective to reduce the aerodynamic loss and heat transfer to the blade tip. …”
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Stability Analysis of Batch Offline Action-Dependent Heuristic Dynamic Programming Using Deep Neural Networks by Timotei Lala

“…We present a practical implementation involving a twin rotor aerodynamical system to emphasize the impact difference between the usage of single-hidden-layer and multiple-hidden-layer NN architectures in BOADHDP learning settings. …”
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Full-scale wind turbine performance assessment: a customised, sensor-augmented aeroelastic modelling approach by T. H. Malik, C. Bak

“…<p>Blade erosion of wind turbines causes significant performance degradation, impairs aerodynamic efficiency, and reduces power production. …”
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EFFECT OF THE FILL VENTILATION WINDOW ON PERFORMANCE OF A NATURAL DRAFT COOLING TOWER SUBJECTED TO CROSS-WINDS by K. V. Dobrego

“…Various aerodynamic design elements and technics (wind deflectors, wind walls, etc.) are utilized for improvement of the thermal efficiency of the natural draft cooling towers, particularly in conditions of cross wind. …”
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Time-Optimal Trajectory Planning along Parametric Polynomial Lane-Change Curves with Bounded Velocity and Acceleration: Simulations for a Unicycle Based on Numerical Integration by Chien-Sheng Wu, Zih-Yun Chiu, Jing-Sin Liu

“…This could provide a reference for on-road lane-change trajectory planning along a given path other than parametric polynomials for significantly more complex, complete higher-dimensional highly nonlinear dynamic model of autonomous ground vehicle considering aerodynamic forces, tire and friction forces of tire-ground interaction, and terrain topology in real-world.…”
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Engineering Application of an Identification Method to Shock-Induced Vortex Stability in the Transonic Axial Fan Rotor by Yan Xue, Ning Ge

“…The excellent agreement between the both indicates that the current code is capable of capturing the dominant secondary flow structures and aerodynamic phenomenon, especially the vortex system in tip region and SW/TLV interaction. …”
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Investigations on Quasi-Steady Characteristics for an Airfoil Oscillating at Low Reduced Frequencies by Deepakkumar M. Sharma, Kamal Poddar

“…Wind tunnel experiments were conducted on NACA-0015 airfoil model to investigate the effect of the reduced frequency (κ=0.0001 to 0.5) and that Reynolds number (Re=0.2E06 to 0.7E06) on the aerodynamic characteristics and hysteresis behavior associated with the oscillating motion of the airfoil. …”
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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

“…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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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

“…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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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

“…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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