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Xunqing Huang, Yunhan Wu, Yingzhong Shi and Shuai Shao
In this study, the sealing of a large-aperture channel for high-power laser transmission is achieved using an aerodynamic window. Further, a numerical model of the gas and dust particle motion in the channel is established under three different blowing s...
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Alexey Lyubushin
Statistical properties of Earth surface tremors measured by means of GPS were investigated. This article considers measurements of the Earth?s surface displacements in three orthogonal directions relayed by a network of GPS sensors with about 1200 points...
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Liang Zhang, Dongli Ma, Muqing Yang, Xiaopeng Yang and Yayun Yu
Currently, several solar-powered unmanned aerial vehicles (UAVs) have achieved 24 h uninterrupted cruise. However, models that can cruise for weeks or even months without interruption are in the minority. The technological progress requires the improveme...
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Dominik Piatkowski and Krzysztof Walkowiak
As the COVID-19 pandemic emerged, everyone?s attention was brought to the topic of the health and safety of the entire human population. It has been proven that wearing a face mask can help limit the spread of the virus. Despite the enormous efforts of p...
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Jonathan Menahem and Dror Malka
Optical communication systems based on silicon (Si) multimode interference (MMI) wavelength-division multiplexing (WDM) technology can suffer from back reflection. This undesirable characteristic causes losses and is a key problem that can lead to perfor...
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