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Full-Text Articles in Engineering

A Study Of The Design Of Adaptive Camber Winglets, Justin J. Rosescu Jun 2020

A Study Of The Design Of Adaptive Camber Winglets, Justin J. Rosescu

Master's Theses

A numerical study was conducted to determine the effect of changing the camber of a winglet on the efficiency of a wing in two distinct flight conditions. Camber was altered via a simple plain flap deflection in the winglet, which produced a constant camber change over the winglet span. Hinge points were located at 20%, 50% and 80% of the chord and the trailing edge was deflected between -5° and +5°. Analysis was performed using a combination of three-dimensional vortex lattice method and two-dimensional panel method to obtain aerodynamic forces for the entire wing, based on different winglet camber configurations. …


Comparison Of Aluminum And Manganum Concentration In Akmola Region, Kazakhstan, A. G. Zhumalina, E. K. Sambayev, A. Sakaguchi, S. Endo, K. Tanaka, T. Kajimoto, N. Kawano, T. B. Suleimenov, K. Sh. Zhumadilov, M. Hoshi Mar 2020

Comparison Of Aluminum And Manganum Concentration In Akmola Region, Kazakhstan, A. G. Zhumalina, E. K. Sambayev, A. Sakaguchi, S. Endo, K. Tanaka, T. Kajimoto, N. Kawano, T. B. Suleimenov, K. Sh. Zhumadilov, M. Hoshi

Eurasian Journal of Physics and Functional Materials

The results of seasonal Al and Mn activity on the surface of the atmosphere above the city of Nur-Sultan are shown from October 2016 to January 2017. The technique of sampling aerosols in various fractions and further analysis of the data are described. Together with scientists from the University of Hiroshima (Hiroshima, Japan) and the University of Tsukuba (Tsukuba, Japan), the composition of aerosols in the air of Astana was monitored. The aim of the project was to develop a methodology for sampling aerosols in various fractions and conduct measurements on an ongoing basis. The studies were carried out using …


Air Quality Near Busy Australian Roads Up To 10 Times Worse Than Official Figures, Hugh I. Forehead Jan 2020

Air Quality Near Busy Australian Roads Up To 10 Times Worse Than Official Figures, Hugh I. Forehead

SMART Infrastructure Facility - Papers

Air quality on Australia’s roads matters. On any given day (when we’re not in lockdown) people meet, commute, exercise, shop and walk with children near busy streets. But to date, air quality monitoring at roadsides has been inadequate. I and my colleagues wanted to change that. Using materials purchased from electronics and hardware stores for around A$150, we built our own air quality monitors. Our newly published research reveals how our devices detected particulate pollution at busy intersections at levels ten times worse than background levels measured at official air monitoring stations.


Assessing The Effects Of Mobility On Air Quality: The Liverpool Smart Pedestrian Project, Nicolas R. Verstaevel, Johan Barthelemy, Hugh I. Forehead, Bilal Arshad, Pascal Perez Jan 2020

Assessing The Effects Of Mobility On Air Quality: The Liverpool Smart Pedestrian Project, Nicolas R. Verstaevel, Johan Barthelemy, Hugh I. Forehead, Bilal Arshad, Pascal Perez

SMART Infrastructure Facility - Papers

With the drastic increase of their urban population, cities face huge challenges to maintain and update their infrastructures. Assessing in real time the effect of urban policies will be a key tool in the future of urban planning. In this paper, we discuss of mobility and its impact on air quality. We introduce a pilot project in which low cost IoT sensors are used to monitor flow of cars and pedestrians and concentration of particulate matters within the Australian city of Liverpool.


Air Void Detection Using Variational Mode Decomposition With Low Rank, Fok Hing Chi Tivive, Abdesselam Bouzerdoum, Shivakumar Karekal Jan 2020

Air Void Detection Using Variational Mode Decomposition With Low Rank, Fok Hing Chi Tivive, Abdesselam Bouzerdoum, Shivakumar Karekal

Faculty of Engineering and Information Sciences - Papers: Part B

This paper presents an air-void detection technique for air-coupled radar, which emits electromagnetic waves to interrogate an air-void inside a medium or between two media. The reflections from the air-medium interfaces are usually corrupted by air-coupling, antenna ringing, and internal reflections, rendering air-void detection very difficult or, in certain cases, impossible. The proposed method exploits the low-rank structure of the background clutter to suppress these nuisance signals. A variational mode decomposition model is developed to extract the backscattering at different air-medium interfaces as signal modes. Real experiments are conducted using a stepped frequency radar. The experimental results show that the …