Air Heat Pump in Wind Power by L. I. Gretchikhin, A. I. Hutkouski

“…Herewith, a disruptive flow in the back side of the heat pump propeller is being created and conditions for converting the thermal component of the ventilator air flow into electrical energy by an electric power generator are realized. An aerodynamic model of the flow around the propeller blades of the heat pump in mutually perpendicular airflow has been developed. …”
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Quasi‐Static Closed‐Loop Wind‐Farm Control for Combined Power and Fatigue Optimization by Ishaan Sood, Christophe del Fosse et d'Espierres, Johan Meyers

“…ABSTRACT To counteract detrimental turbine–turbine aerodynamic interactions within large farms and increase overall power production, closed‐loop wind‐farm control strategies such as wake steering have emerged as a popular means to facilitate real‐time wind‐farm flow control. …”
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Influence of trains meeting on the ventilation performance of equipment compartment with independent air duct in high-speed train: numerical and experimental study by Yitong Wu, Wei Zhou, Xifeng Liang, Xinchao Su, Kewei Xu, Yutao Xia, Zhixin Wang, Sinisa Krajnović

“…The results indicate that the primary factors influencing ventilation effectiveness are the aerodynamic compression and deceleration of airflow induced by the other train’s nose, as well as the instability of the external flow field in the wake of the other train. …”
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On the Energy Efficiency of Indoor Air Conditioning by S. N. Osipov, A. V. Zakharenko, E. M. Shirokova

“…At the same time, it should be noted that there is currently no complete scientific and technical description of aerodynamic and heat exchange processes in the air conditioning zone. …”
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Streaming Torque with Turbulent Diffusion by Qiang Hou, Cong Yu

“…We explore how ST depends on the regimes of aerodynamic drag, dust mass fraction, and disk scale height. …”
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Effect of blade inclination angle for straight-bladed vertical-axis wind turbines by L. Morgan, A. K. Amiri, W. Leithead, J. Carroll

“…Many studies have been completed on the rotor design for straight-bladed rotors (H-rotors); however, there is sparse information on the effect of blade inclination angle on VAWT aerodynamic performance and the optimal blade design of VAWTs with inclined blades (V-rotors) for maximum power capture.…”
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3D modelling and simulation of thermal effects and dispersion of particles carrying infectious respiratory agents in a railway transport coach by Patrick Armand, Jérémie Tâche

“…More specifically, droplets associated with breathing are in the range of 1–10 µm in aerodynamic diameter, while at the other end of the spectrum, drops associated with coughing can reach 100–1000 µm. …”
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Filtration and Breathability of Nonwoven Fabrics Used in Washable Masks by Thomas W. Bement, David J. Downey, Ania Mitros, Rebecca Lau, Timothy A. Sipkens, Jocelyn Songer, Heidi Alexander, Devon Ostrom, Hamed Nikookar, Steven N. Rogak

“…Filtration was tested against particles 0.5 µm to 5 µm aerodynamic diameter. Nonwoven polyester and nonwoven polypropylene (craft fabrics, medical masks, and medical wraps) showed higher quality factors than woven materials (flannel cotton, Kona cotton, sateen cotton). …”
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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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Assessment of Microbiological Indoor Air Quality in Cattle Breeding Farms by Justyna Szulc, Małgorzata Okrasa, Katarzyna Dybka-Stępień, Michael Sulyok, Adriana Nowak, Anna Otlewska, Bogumiła Szponar, Katarzyna Majchrzycka

“…The concentrations of the total dust in the barns ranged from 0.175 to 0.351 mg m−3, with the dominant fraction (67.4-96.4%) displaying an aerodynamic diameter of < 1 µm. The bacterial and fungal concentrations fell between 7.14 × 103 and 3.88 × 104 CFU m−3, and 5.53 × 101 and 1.30 × 104 CFU m−3, respectively. …”
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Chemical Characterization of Marine Aerosols in a South Mediterranean Coastal Area Located in Bou Ismaïl, Algeria by Sidali Khedidji, Konrad Müller, Lyes Rabhi, Gerald Spindler, Khanneh Wadinga Fomba, Dominik van Pinxteren, Noureddine Yassaa, Hartmut Herrmann

“…., atmospheric particulate matter with aerodynamic diameter of less than 10 µm, was determined at the south Mediterranean coastal area located in Bou Ismaïl, 40 km west of the Algiers city area in Algeria. …”
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Analysis of Surface Level PM2.5 Measured by Low-Cost Sensor and Satellite-Based Column Aerosol Optical Depth (AOD) over Kathmandu by Jeevan Regmi, Khem N. Poudyal, Amod Pokhrel, Nabin Malakar, Madhu Gyawali, Lekhendra Tripathee, Mukesh Rai, Srikanthan Ramachandran, Katrina Wilson, Rudra Aryal

“…Abstract A low-cost PurpleAir PA-II sensor was installed, in 2020 at the Institute of Engineering (IOE) Pulchowk Campus, TU located in Kathmandu valley, Nepal, to measure particulate matter with an aerodynamic diameter equal to or smaller than 2.5 µm (PM2.5). …”
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Investigation of Coolant Local Hydrodynamics in the Mixed Core of the VVER Reactor by S. M. Dmitriev, A. V. Gerasimov, A. A. Dobrov, D. V. Doronkov, A. N. Pronin, A. V. Ryazanov, D. N. Solntsev, A. E. Khrobostov

“…Modeling of the flow of the coolant flow in the fuel rod bundle was carried out on an aerodynamic test stand. The research was carried out on a model of a fragment of a mixed core of a VVER reactor consisting of one TVSA-T segment and two segments of the TVSA-T.mod2. …”
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Characteristics of Chemical Composition and Particle Size Distribution from Real Coal-fired Circulating Fluidised Bed (CFB) Boiler by Xin Du, Jianhui Wu, Yingze Tian, Yufen Zhang, Baoshuang Liu, Yinchang Feng

“…Chemical species in particulate matter mainly concentrated in sizes 0.1–2.5 µm in aerodynamic diameter. In this work, the mass percentage of Ca, Ca2+, SO42–, NH4+ and OC were significantly high in different particle size regions. …”
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Variation and simulation of tomato transpiration in a greenhouse under different ventilation modes by Jiankun Ge, Sen Wang, Xuewen Gong, Yuhao Zhu, Zihui Yu, Yanbin Li

“…Meteorological conditions inside the greenhouse and water consumption indicators were analyzed to improve the Penman-Monteith (P-M) model’s resistance parameters (canopy resistance, rc and aerodynamic resistance, ra). Results showed that ventilation significantly influenced water consumption across growth stages, with the highest water consumption intensity observed during the fruit enlargement stage (3.39 mm d−1). rc and ra were significantly lower under T2, with forced convection dominating in both cases. …”
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Contribution of dust emissions from farmland to particulate matter concentrations in North China Plain: Integration of WRF-Chem and WEPS model by Haopeng Zhang, Feng Wang, Shenghui Zhou, Tianning Zhang, Minghui Qi, Hongquan Song

“…Wind erosion from farmland is a significant contributor to atmospheric particulate matter, particularly PM10 (atmospheric particulate matter with an aerodynamic diameter ≤ 10 μm), in regions with intensive agricultural activities such as the North China Plain (NCP). …”
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Exposure to Air Pollution Exacerbates Inflammation in Rats with Preexisting COPD by Jing Wang, Ya Li, Peng Zhao, Yange Tian, Xuefang Liu, Huihui He, Rui Jia, Brian G. Oliver, Jiansheng Li

“…Particulate matter with an aerodynamic diameter equal or less than 2.5 micrometers (PM2.5) is associated with the development of chronic obstructive pulmonary disease (COPD). …”
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Concentrations and associated health risks of indoor/outdoor PM2.5- bound metallic elements at a subway station in Tianjin city during winter by Yan ZHAO, Yang CHEN, Yuwen WANG, Bodong SHANG, Yuxin DU

“…ObjectiveTo compare the concentrations and to assess the chronic health risks of particulate matter less than 2.5 microns in aerodynamic diameter (PM2.5)-bound metal elements on the platform and in the ambient air of a subway station in Tianjin city during winter. …”
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Are noise and air pollution related to the incidence of dementia? A cohort study in London, England by Derek G Cook, Frank J Kelly, Iain M Carey, H Ross Anderson, David P Strachan, Richard W Atkinson, Sean D Beevers, David Dajnak, John Gulliver

“…The average annual concentrations during 2004 of nitrogen dioxide (NO2), particulate matter with a median aerodynamic diameter ≤2.5 µm (PM2.5) and ozone (O3) were estimated at 20×20 m resolution from dispersion models. …”
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COPD with Eosinophilic Inflammation is Susceptible to Particulate Air Pollution Exposure by Amja Manullang, Chi-Li Chung, Yueh-Lun Lee, Tzu-Hsuen Yuan, Huan Minh Tran, Firdian Makrufardi, Kian Fan Chung, Kang-Yun Lee, Jer-Hwa Chang, Hsiao-Chi Chuang

“…Land use regression (LUR) model was used to estimate exposure levels to particulate matter with an aerodynamic diameter of < 10 µm (PM10), PM2.5 (< 10 µm), nitrogen oxides (NOx) and nitrogen dioxides (NO2). …”
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