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Hao Ma, Jun Wang, Xin Sun and Wenxin Jin
In this paper, we propose a multi-beam integrated radar and communication scheme using phased-array antenna, in which the same LFM-BPSK integrated waveform is used for both the radar and the communication beams. In the integrated beam design, the radar b...
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Monica Macrì, Elena Toniato, Giovanna Murmura, Giuseppe Varvara and Felice Festa
Background and objectives. This paper aimed to evaluate the changes in mean bone density values of the midpalatal suture (MPS) in 392 young patients treated with a rapid palatal expander (RPE) appliance, depending on sex and vertical and sagittal skeleta...
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Danilo Greco and Andrea Trucco
Frequency-invariant beam patterns are often required by systems using an array of sensors to process broadband signals. In some experimental conditions (small devices for underwater acoustic communication), the array spatial aperture is shorter than the ...
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Kyubong Yeon, Duho Lee and Byeongwoo Kim
This paper describes the design of a high-efficiency vehicular roof-mounted antenna for wireless access for vehicular environment (WAVE) communication systems used for ubiquitous intelligent systems. The main objective of the ubiquitous intelligent syste...
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Bin Zeng, Yuzhou Wang, Fuyuan Gong and Koichi Maekawa
Concrete cracking is the significant stage of RC structural deterioration induced by steel corrosion. To predict the corrosion-induced cracking of the loaded RC structure, a multi-scale model is proposed. The formation and transport of corrosion products...
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Ying Song, Ning Zhang, Yujuan Liu, Liu Zhang and Zhaowu Liu
Variable-period scanning beam interference lithography (VP-SBIL) can be used to fabricate varied-line-spacing (VLS) plane gratings. The exposure phase modulation method to pattern a VLS grating with a desired groove density must be carefully devised. In ...
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Ning Ning, Dehu Yu, Chunwei Zhang and Shan Jiang
This paper presents a pushover analysis using ABAQUS (Dassault Company, Providence, Rhodes Island, USA) for spatial reinforced concrete (RC) frames. The main purpose is to study the effect of the infills on failure patterns of the RC frames. The Finite E...
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Hongsub Jee, Kiseok Jeon, Min-Joon Park and Jaehyeong Lee
Nanoporous structures have attracted great attention in electronics, sensor and storage devices, and photonics because of their large surface area, large volume to surface ratio, and potential for high-sensitivity sensor applications. Normally, electron ...
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Weixin Zhou, Yao Zhao, Hua Yuan and Zhaoxin Ren
The unclear change laws of bearing offset and rotation, both of which influence the condition of shaft alignment during hull deformation, make it difficult to optimize shafting design. In this paper, an integrated hull-bearing-shaft model is designed and...
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Sudantha Perera, Yan Zhang, Dusan Zrnic and Richard Doviak
Electromagnetic (EM) simulation of dual-polarized antennas is necessary for precise initial alignments, calibration and performance predictions of multi-function phased array radar systems. To achieve the required flexibility and scalability, a novel Fin...
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Sudantha Perera, Yan Zhang, Dusan Zrnic and Richard Doviak
Electromagnetic (EM) simulation of dual-polarized antennas is necessary for precise initial alignments, calibration and performance predictions of multi-function phased array radar systems. To achieve the required flexibility and scalability, a novel Fin...
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Simon Jekosch and Ennes Sarradj
Microphone arrays methods are useful for determining the location and magnitude of rotating acoustic sources. This work presents an approach to calculating a discrete directivity pattern of a rotating sound source using inverse microphone array methods. ...
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Kichul Kim, Seongmin Pyo and Jinwoo Jung
With increasing interest in the W-band, there is growing focus on parabolic reflector antennas that are known for efficiently inducing high-gain radiation characteristics. There is particular focus on parabolic antennas with diverse defocus-fed applicati...
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Seung Gook Cha, Donghyun Kim and Young Joong Yoon
In this paper, a compact direction-finding system based on a deep neural network (DNN) with a single-patch multi-beam antenna is proposed. To achieve multiple beams, the patch is divided into four sectors by metal vias, and the pattern is tilted in the t...
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Xiaobo Zheng, Pengli Zhang, Wenjing Zhang, Yue Yu and Yaping Zhao
The flow pattern of the forebay of the pumping station has a considerable effect on the operating efficiency and stability of the pump unit. A good forebay flow pattern can enable the pump unit to improve efficiency and operating conditions. This study t...
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Huijuan Wang, Changyong Li, Sihao Song, Yao Wang, Qingxin Meng and Fenglan Li
Because researchers are aiming to restore the deformation and minimize the crack width of existing concrete structures, the strengthening technology of prestressed carbon-fiber-reinforced plastic (CFRP) is currently the focus of many studies and applicat...
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Ziye Wang, Pinyao Wang, Huanyu Lu, Bo Meng, Yanjing Wang, Cunzhu Tong and Lijun Wang
Photonic-crystal surface-emitting lasers (PCSELs) have led to amazing results in overcoming the divergence limitation of semiconductor lasers. However, so far, the physical mechanism behind this promising control of far-field characteristics is still unc...
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Ping Tan, Tinaye Hamufari Tsinakwadi, Zhe Xu and He Xu
RFID localization methods have been widely used in indoor positioning systems (IPS). Most localization techniques involve the use of multiple antennas and the placement of antennas and readers in order to ensure accurate positioning results. However, mos...
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Francesco Cascone, Diana Faiella, Valentina Tomei and Elena Mele
An innovative generative design strategy, based on shape grammar, is proposed for the minimum-weight design of diagrid tall buildings. By considering the building as a three-dimensional vertical cantilever beam with a tubular section under horizontal loa...
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This paper deals with the behavior of a geopolymer concrete beam (GCB) under shear load using high calcium content fly ash (FA). The effect of the marine environment on the shear strength of GCB was considered by curing the specimen in a sea splashing zo...
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