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Endrowednes Kuantama, Avishkar Seth, Alice James and Yihao Zhang
The effectiveness of human security-based guard patrol systems often faces challenges related to the consistency of perimeter checks regarding timing and patterns. Some solutions use autonomous drones for monitoring assistance but primarily optimize thei...
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C. G. Moura, H. Dinis, O. Carvalho, P. M. Mendes, R. M. Nascimento and F. S. Silva
The use of Yttria-stabilized tetragonal zirconia polycrystals (Y-TZP) in medicine has rapidly expanded over the past decade, driven by its advantageous properties, showing potential to overcome titanium alloy in implant fabrication. The release of metal ...
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Nathan Barnwell, Tyler Ritz, Samantha Parry, Myles Clark, Paul Serra and John W. Conklin
Optical communication is becoming more prevalent in orbit due to the need for increased data throughput. Nanosatellites, which are satellites that typically weigh less than 10 kg, are also becoming more common due to lower launch costs that enable the ra...
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Nathan Barnwell, Tyler Ritz, Samantha Parry, Myles Clark, Paul Serra and John W. Conklin
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Denis Guilhot and Pol Ribes-Pleguezuelo
The registered history of laser technologies for space application starts with the first laser echoes reflected off the Moon in 1962. Since then, photonic technologies have become very prominent in most technical development. Their presence has also dram...
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Tianhua Xu, Cenqin Jin, Shuqing Zhang, Gunnar Jacobsen, Sergei Popov, Mark Leeson and Tiegen Liu
This work is performed for the compensation of the laser phase noise (LPN) and the equalization enhanced phase noise (EEPN) in high-capacity, long-haul, coherent optical fiber networks.
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Leonid Tymchenko,Vladimir Tverdomed,Nikolay Petrovsky,Natalya Kokryatskaya,Yurii Maistrenko
Pág. 21 - 27
A method for processing images of spots of laser beams is presented for systems using a modern and promising form of communication using atmospheric-optical communication lines (AOCL). The method allows to significantly expand the use of laser technology...
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Xiaomin Guo, Chen Cheng, Tong Liu, Xin Fang and Yanqiang Guo
This technique of improving the accuracy of g(2)(t) measurement is useful to extract higher order coherence and achieve desired laser source for quantum imaging and secure communication.
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Geuk-Nam Kim, Sang-Young Park, Sehyun Seong, Jae-Young Choi, Sang-Kook Han, Young-Eon Kim, Suyong Choi, Joohee Lee, Sungmoon Lee, Han-Gyeol Ryu and Seonghui Kim
With growth in data volume from space missions, interest in laser communications has increased, owing to their importance for high-speed data transfer in the commercial and defense fields, spaceborne remote sensing, and surveillance. Here, we propose a n...
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Tianli Yang, Jing Yang, Wangzhe Zhou, Xuepeng Li, Yinan Zhou, Zongzhe Zhang and Xiaojun Wang
The one-dimensional, high-order Hermite?Gaussian (HG0n) laser beams can be easily converted into vortex Laguerre?Gaussian (LGpl) beams carrying orbital angular momentum (OAM), and with the scaling of output power and the narrowing of pulse width, the app...
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Youngbum Song, Sang-Young Park, Geuk-Nam Kim and Dong-Gu Kim
For the low-cost improvement of laser communication, which is critical for various applications such as surveillance systems, a study was conducted on relative distance control based on orbital drift rate modulations for multiple CubeSats during formatio...
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Theodore T. Kapsis, Nikolaos K. Lyras, Charilaos I. Kourogiorgas and Athanasios D. Panagopoulos
Next generation 5G networks generate a need for broadband, low latency and power efficient backhauling and data-relay services. In this paper, optical satellite communications links, as an integrated component of 5G networks, are studied. More specifical...
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Tin Komljenovic, Linjun Liang, Rui-Lin Chao, Jared Hulme, Sudharsanan Srinivasan, Michael Davenport and John E. Bowers
Chip-scale widely-tunable lasers are important for both communication and sensing applications. They have a number of advantages, such as size, weight, and cost compared to mechanically tuned counterparts. Furthermore, they allow for integration in more ...
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Valeria Castellucci, Johan Abrahamsson, Tobias Kamf and Rafael Waters
The power production of the linear generator wave energy converter developed at Uppsala University is affected by variations of mean sea level. The reason is that these variations change the distance between the point absorber located on the surface and ...
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Klaus Schricker, Leander Schmidt, Hannes Friedmann and Jean Pierre Bergmann
The development of adaptive and intelligent clamping devices allows for the reduction of rejects and defects based on weld discontinuities in laser-beam welding. The utilization of fixture-integrated sensors and actuators is a new approach, realizing ada...
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Robert E. Weber, Janusz J. Petkowski and Monika U. Weber
Evidence of chemical disequilibria and other anomalous observations in the Venusian atmosphere motivate the search for life within the planet?s temperate clouds. To find signs of a Venusian aerial biosphere, a dedicated astrobiological space mission is r...
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Aqsa Sayeed, Chaman Verma, Neerendra Kumar, Neha Koul and Zoltán Illés
The Internet of robotic things (IoRT) is the combination of different technologies including cloud computing, robots, Internet of things (IoT), artificial intelligence (AI), and machine learning (ML). IoRT plays a major role in manufacturing, healthcare,...
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Ling Bai, Yinguo Li and Ming Cen
With the popularity of ground and airborne three-dimensional laser scanning hardware and the development of advanced technologies for computer vision in geometrical measurement, intelligent processing of point clouds has become a hot issue in artificial ...
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José L. Hernández, Pedro Martín Lerones, Peter Bonsma, Andrè van Delft, Richard Deighton and Jan-Derrick Braun
Self-inspection of buildings is the process of controlling the quality of construction work in order to ensure that the specifications are implemented according to the design. Under current practices, self-inspection is totally dependent on the operator?...
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Pierre Drap, Odile Papini, Elisa Pruno, Micchele Nucciotti and Guido Vannini
This paper presents certain reflections concerning an interdisciplinary project between medieval archaeologists from the University of Florence (Italy) and computer science researchers from CNRS, National Center for Scientific Research, (France), aiming ...
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