|
|
|
|
|
Christos Pantos, Hanno Hildmann and João Valente
This study aims to explore the communication capabilities for video crucial applications of two commercial drones?the Parrot AR.Drone 2.0 and the Parrot Anafi?in a greenhouse environment. Experiments were conducted on Received Signal Strength (RSS), Roun...
ver más
|
|
|
|
|
|
|
|
|
|
|
Robert D. McCauley, Mark G. Meekan and Miles J. G. Parsons
An experimental marine seismic source survey off the northwest Australian coast operated a 2600 cubic inch (41.6 l) airgun array, every 5.88 s, along six lines at a northern site and eight lines at a southern site. The airgun array was discharged 27,770 ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Miles Parsons and Mark Meekan
Vessel noise is an acute and chronic stressor of a wide variety of marine fauna. Understanding, modelling and mitigating the impacts of this pollutant requires quantification of acoustic signatures for various vessel classes for input into propagation mo...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yazan Alqudah,Todor Cooklev
Pág. pp. 13 - 18
The unprecedented growth in wireless communication is offering opportunities and challenges for educators. Thanks to technology advances and job opportunities, more and more students are interested in wireless communications courses. However, bridging th...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yaxi Peng, Apostolos Tsouvalas, Tasos Stampoultzoglou and Andrei Metrikine
Underwater noise pollution generated by offshore pile driving has raised serious concerns over the ecological impact on marine life. To comply with the strict governmental regulations on the threshold levels of underwater noise, bubble curtains are usual...
ver más
|
|
|
|
|
|
|
|
|
|
|
Irina Sirkova
Two clear-air over-the-horizon propagation mechanisms affecting the Automatic Identification System (AIS) detection range are considered. Comparison results are presented between the path loss due to tropospheric ducting and path loss due to tropospheric...
ver más
|
|
|
|
|
|
|
|
|
|
|
Xiangxin Huang, Gengxin Chen, Wen Zhou and Xuguang Huang
In this paper, the cm-level photonic-crystal-like subwavelength waveguide platform is developed and analyzed by using the finite-difference time-domain method. The configuration can be considered as a hybrid waveguide combining with the advantages of a m...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jiaqi Liu, Shengchun Piao, Minghui Zhang, Shizhao Zhang, Junyuan Guo and Lijia Gong
Oceanic fronts involved by ocean currents led to strong gradients of temperature, density and salinity, which have significant effects on underwater sound propagation. This paper focuses on the impact of the oceanic front on three-dimensional underwater ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Brennan Yamamoto, Allison Wong, Peter Joseph Agcanas, Kai Jones, Dominic Gaspar, Raymond Andrade and A Zachary Trimble
The effect of the maritime environment on radio frequency (RF) propagation is not well understood. In this work, we study the propagation of ad hoc 2.4 GHz and 5 GHz wireless local area network systems typically used for near-shore operation of unmanned ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Pengfei Han, Qiguang He, Xiaowei Chen and He Lv
An asteroid impact can potentially destroy life on this planet. Therefore, asteroids should be prevented from impacting the Earth to impede severe disasters. Nuclear explosions are currently the only option to prevent an incoming asteroid impact when the...
ver más
|
|
|
|
|
|
|
|
|
|
|
Usman Ali, Giuseppe Caso, Luca De Nardis, Konstantinos Kousias, Mohammad Rajiullah, Özgü Alay, Marco Neri, Anna Brunstrom and Maria-Gabriella Di Benedetto
The successful rollout of fifth-generation (5G) networks requires a full understanding of the behavior of the propagation channel, taking into account the signal formats and the frequencies standardized by the Third Generation Partnership Project (3GPP)....
ver más
|
|
|
|
|
|
|
|
|
|
|
Okiemute Roberts Omasheye, Samuel Azi, Joseph Isabona, Agbotiname Lucky Imoize, Chun-Ta Li and Cheng-Chi Lee
The accurate and reliable predictive estimation of signal attenuation loss is of prime importance in radio resource management. During wireless network design and planning, a reliable path loss model is required for optimal predictive estimation of the r...
ver más
|
|
|
|
|
|
|
|
|
|
|
Joanna Maria Kopania, Wojciech Zakrzewicz, Przemyslaw Kubiak, Adam Mrowicki, Michal Glogowski, Jacek Gralewski, Grzegorz Boguslawski, Kamil Wójciak and Patryk Gaj
The primary goal of this research was to study transmission loss and absorption of fluted PVC panels using experimental and theoretical methods. During these studies, the link between panel size, thickness, transmission loss, and absorption was considere...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ruoyun Liu and Zhenglin Li
As sea waves break, a bubble layer forms beneath the sea surface. The bubble scattering affects sound propagation, thus influencing the accuracy of sound field prediction. This paper aims to investigate the effects of bubble scattering on the statistical...
ver más
|
|
|
|
|
|
|
|
|
|
|
Usman Raza and Abdul Salam
Storm drains and sanitary sewers are prone to backups and overflows due to extra amount wastewater entering the pipes. To prevent that, it is imperative to efficiently monitor the urban underground infrastructure. The combination of sensors system and wi...
ver más
|
|
|
|
|
|
|
|
|
|
|
Hseng-Tsong Wang, Chi-Feng Chen and Sien Chi
A numerical solution for the broadband planar-lightwave-circuit (PLC) splitter with a variable splitting ratio based on asymmetric three waveguides weighted by the Blackman weighting function is designed for passive optical network applications with wave...
ver más
|
|
|
|
|
|
|
|
|
|
|
Hector Luis Delbono, Enrique Fensel, Lucas Curone
Pág. Page 201 - 209
Load demands on pavements, due to repeated vehicle loads and environmental conditions, generate a constant deterioration of the structure, which causes the loss of mechanical properties, thereby producing a structural and functional loss on the road. Now...
ver más
|
|
|
|
|
|
|
|
|
|
|
Wenhao Fu, Zeshuai Chen and Jiaqi Luo
Stochastic variations of the operation conditions and the resultant variations of the aerodynamic performance in Low-Pressure Turbine (LPT) can often be found. This paper studies the aerodynamic performance impact of the uncertain variations of flow para...
ver más
|
|
|
|
|
|
|
|
|
|
|
Giovanni Gugliandolo, Antonino Quattrocchi, Giuseppe Campobello, Giovanni Crupi and Nicola Donato
In recent years, inkjet printing has emerged as a promising advanced fabrication technology in the field of electronics, offering remarkable advantages in terms of cost-effectiveness, design flexibility, and rapid prototyping. For these reasons, inkjet p...
ver más
|
|
|
|
|
|
|
|
|
|
|
Nan Meng and Feng Li
Combustion instability constitutes the primary loss source of combustion chambers, gas turbines, and aero engines, and it affects combustion performance or results in a sudden local oscillation. Therefore, this study investigated the factors affecting fl...
ver más
|
|
|
|
|
|