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Dongbo Cai, Shaoqiang Chai, Mingzhuan Wei, Hui Wu, Nan Shen, Yin Zhou, Yanchao Ding, Kaixin Hu and Xingyi Hu
The current expansion of building structures has created a demand for efficient and smart surface quality evaluation at the acceptance phase. However, the conventional approach mainly relies on manual work, which is labor-intensive, time-consuming, and u...
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Bin Liu, Fan Yang, Yixuan Huang, Ye Zhang and Guanhao Wu
Structured-light vision methods are widely employed for three-dimensional reconstruction. As a typical structured light pattern, grid pattern is extensively applied in single-shot three-dimensional reconstruction. The uniqueness of the grid feature retri...
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Alessandro A. Quarta, Giovanni Mengali, Marco Bassetto and Lorenzo Niccolai
The transfer between two coplanar Keplerian orbits of a spacecraft with a continuous-thrust propulsion system is a classical problem of astrodynamics, in which a numerical procedure is usually employed to find the transfer trajectory that optimizes (i.e....
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Kazuhide Hirose, Kohei Nakamura and Hisamatsu Nakano
We analyze three transmission-line antennas using the moment method. Each line antenna comprises a coplanar feed line, loops, and straight segments connecting the loops and feedline. First, we investigate bent and branched line antennas with loops on one...
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Yan Luo, Tong Qin and Xingyu Zhou
Cooperative orbit determination (OD) using inter-spacecraft optical measurements is an important technology for space constellation missions. In this paper, the observability of a two-spacecraft cooperative OD system is investigated. The influence of geo...
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Zhiqiang Sheng, Yu Dan, Lan Zhang and Bowen Zhong
Jet mixings of a coplanar alternating-lobe nozzle (CoALN), scarfing alternating-lobe nozzle (ScALN), sword alternating-lobe nozzle (SwALN), and sword and chevron alternating-lobe nozzle (SwChALN) were numerically investigated using three different far-fi...
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Sarosh Ahmad, Umer Ijaz, Salman Naseer, Adnan Ghaffar, Muhammad Awais Qasim, Faisal Abrar, Naser Ojaroudi Parchin, Chan Hwang See and Raed Abd-Alhameed
A type of telecommunication technology called an ultra-wideband (UWB) is used to provide a typical solution for short-range wireless communication due to large bandwidth and low power consumption in transmission and reception. Printed monopole antennas a...
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Mohsen Vahabi, Pavel Lyakhov, Ali Newaz Bahar and Khan A. Wahid
The miniaturization of electronic devices and the inefficiency of CMOS technology due to the development of integrated circuits and its lack of responsiveness at the nanoscale have led to the acquisition of nanoscale technologies. Among these technologie...
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Dimitris I. Manolas, Vasilis A. Riziotis and Spyros G. Voutsinas
Accurate and efficient numerical wave generation and absorption of two-dimensional nonlinear periodic waves traveling on a steady, uniform current were carried out in a potential, fully nonlinear numerical wave tank. The solver is based on the ?oundary ?...
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Mingjian Sun, Depeng Hu, Wenxue Zhou, Yang Liu, Yawei Qu and Liyong Ma
A 3D photoacoustic computed tomography (3D-PACT) system based on full-view illumination and ultrasound detection was developed and applied to 3D photoacoustic imaging of several phantoms. The system utilized an optics cage design to achieve full-view uni...
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