Titlebook: Wireless Algorithms, Systems, and Applications; 17th International C Lei Wang,Michael Segal,Tie Qiu Conference proceedings 2022 The Editor(

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MineSOS: Long-Range LoRa-Based Distress Gesture Sensing for Coal Mine Rescuealuate MineSOS’s performance, and results show that it can achieve high accuracy for gesture recognition in a coal mine lab. MineSOS system also has the capability of long-range sensing, which is believed to benefit emergency coal mine rescue.

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BatMapper-Plus: Smartphone-Based Multi-level Indoor Floor Plan Construction via Acoustic Ranging and floor plan to eliminate scattered segments, and identifies connection areas including stairs and elevators among different floors. Extensive experiments in a teaching building and a residential building have shown our effectiveness compared with the state-of-the-art, without any privacy concerns and environmental limitations.

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h peak intensities. One of the most important features of femtosecond laser processing is that a femtosecond laser beam can induce strong absorption in even transparent materials due to nonlinear multiphoton absorption. Multiphoton absorption enables both surface and internal three-dimensional modif

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Teng Zhang,Anming Dong,Chuanting Zhang,Jiguo Yu,Jing Qiu,Sufang Li,Li Zhang,You Zhouan analysis of National Family Health Survey (NFHS) unit-level data. Analysis of all-India data reveals that a low but increasing proportion of women rely on behavioural methods. Such women are predominantly from the urban, educated, and affluent class. Further, reliance on behavioural methods is ex

信徒

Chao-Hsien Hsieh,Yubo Song,Zhen Wang,Changfeng Lilt of alteration in the socioeconomic background such as the decline of the infant mortality rate, urbanization, the level of literacy, and so on. This point of view has been regarded as equivalent to “demographic transition”. However, the concept of demographic transition is so superficial, naïve a

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Xuan Wang,Kai Xun,Xingyu Chen,Xia Wang,Jia Liu,Zhihong Zhaoive behaviour that occurred in Asia, Latin America, and Africa since the mid-20th century. In the 1950s contraceptive use was rare and women typically spend most of their reproductive years bearing and rearing children. By 2020 fertility and contraceptive use in Asia and Latin America reached levels

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Zhaohua Qiu,Wen Wang,Dong Weioblems arising from neglect of the role of class struggle, rather than confronting head-on questions posed by the ernergence of capitalism. At the time I merely observed that the dominant Marxist response has been to introduce capitalism as an untheorised external agent. Traditionally, Marxists have

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Zaipeng Xie,Yao Liu,Zhihao Qu,Bin Tang,Weiyi Zhaoss a uniform refractive index along their lengths. Such fibre is referred to as fibre Bragg grating (FBG). FBG is defined as a periodic perturbation of a refractive index formed by exposing its naked core to an intense optical interference pattern. FBG is a passive optical component which selectivel