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Xiaochun Wang, Meicheng Fu, Heng Yang, Jiali Liao and Xiujian Li
We experimentally measured the femtosecond pulse transmission through a silicon-on-insulator (SOI) nanowire waveguide under different temperatures and input pulse energy with a cross-correlation frequency-resolved optical gating (XFROG) measurement setup...
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Suyeon Kim, Junhyung Jeong, Girdhari Chaudhary and Yongchae Jeong
This paper presents a design for a dual-band tunable phase shifter (PS) with independently controllable phase shifting between each operating frequency band. The proposed PS consists of a 3-dB hybrid coupler, in which the coupled and through ports termin...
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Ahmed Bisengar
Pág. 24 - 29
In Mobile Ad hoc Networks (MANETs), where nodes have limited transmitting power, the transmission is typically multi-hop. The network topology changes frequently due to the unpredictable movement of mobile nodes because each node is free to move arbitrar...
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Alina Karki and Junru Wu
The relationship between ultrasonic parameters (attenuation coefficients and velocity) and bone porosity in bovine cancellous bone is explored to understand the possibility of fracture risk diagnosis associated with osteoporosis by applying ultrasound. I...
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S. Burkov,D. Vegera,V. Vlasov,G. Zhiba
Pág. 9 - 15
The creation of a modern voice transmission infrastructure on country roads with difficult terrain, remote and hard-to-reach settlements is one of the most important problems. Forest attenuation is an important factor in the design of new base stations. ...
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D. Vegera,V. Vlasov,G. Zhiba,S. Sai
Pág. 8 - 15
The creation of a modern infrastructure for the transmission of voice and data on suburban roads, difficult in relief, remote and inaccessible settlements, is one of the most important problems. Radio waves propagating in the forest have high path loss c...
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Sabah M. Ahmed, Raghad Y. Mohammed, Sedki O. Yousif
Pág. 1 - 6
Introduction: CdSe is an important II?VI semiconducting material due to its typical optical properties such as small direct band gap (1.7 eV) and a high refractive index and, thus, a major concern is focused on the investigation of optical properties of ...
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Lipengcheng Wan, Yonglei Li, Jinyu Song, Xiang Ma, Xiangqian Dong, Chao Zhang and Jiannong Song
The vibration response of soil is a key property in the field of agricultural soil tillage. Vibration components of tillage machinery are generally used to reduce tillage resistance and improve work efficiency, and the pressure variation under low-freque...
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Guifeng Zhao, Meng Wang, Ying Liu and Meng Zhang
With the continuous expansion of the scale of power grid and transportation infrastructure construction, the number of crossovers between transmission lines and high-speed railways continues to increase. At present, there is a lack of systematic research...
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Ariadna Calcines Rosario
This paper presents the conceptual design of an on-axis 6 metre aperture space telescope designed to cover a field of view of ±0.2 degrees with an optical quality at the diffraction limit within a spectral range between 0.5 µm and 2.5 µm. The plate scale...
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D. Vegera,G. Zhiba,V. Pisarenko
Pág. 52 - 61
There are a huge number of different technological solutions that allow the reception and transmission of various kinds of information through the free propagation of radio waves in the environment. Despite the development of telecommunications, there ar...
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D. Vegera,G. Zhiba,V. Pisarenko
Pág. 52 - 61
There are a huge number of different technological solutions that allow the reception and transmission of various kinds of information through the free propagation of radio waves in the environment. Despite the development of telecommunications, there ar...
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Yang Liu, Bo Zhang, Yinian Feng, Xiaolin Lv, Dongfeng Ji, Zhongqian Niu, Yilin Yang, Xiangyang Zhao and Yong Fan
Frequency multipliers and mixers based on Schottky barrier diodes (SBDs) are widely used in terahertz (THz) imaging applications. However, they still face obstacles, such as poor performance consistency caused by discrete flip-chip diodes, as well as low...
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Boyu Zhu, Song Deng, Yunan Xu, Xinya Yuan and Zi Zhang
With the high integration of smart grid information and physical systems, the security of information systems must affect the safe and stable operation of physical systems. Risk assessment is an effectual means to objectively evaluate the information sec...
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Victor A. Brugman, Luis M. Hernández-Triana, Jolyon M. Medlock, Anthony R. Fooks, Simon Carpenter and Nicholas Johnson
Over the past three decades, a range of mosquito-borne viruses that threaten public and veterinary health have emerged or re-emerged in Europe. Mosquito surveillance activities have highlighted the Culex pipiens species complex as being critical for the ...
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Francesco Bottiglione, Stefano De Pinto, Giacomo Mantriota and Aldo Sorniotti
Battery electric vehicles (BEVs) represent a possible sustainable solution for personal urban transportation. Presently, the most limiting characteristic of BEVs is their short range, mainly because of battery technology limitations. A proper design and ...
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Ihtisham Khalid, Vasilis Maglogiannis, Dries Naudts, Adnan Shahid and Ingrid Moerman
Cooperative communications advancements in Vehicular-to-Everything (V2X) are bolstering the autonomous driving paradigm. V2X nodes are connected through communication technology, such as a short-range communication mode (Dedicated Short Range Communicati...
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Micael Coutinho, Jose A. Afonso and Sérgio F. Lopes
LoRa is one of the most popular low-power wireless network technologies for implementation of the Internet of Things, with the advantage of providing long-range communication, but lower data rates, when compared with technologies such as Zigbee or Blueto...
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Anjali R. Askhedkar, Bharat S. Chaudhari, Maha Abdelhaq, Raed Alsaqour, Rashid Saeed and Marco Zennaro
Low power wide area network (LPWAN) is a wireless communication technology that offers large coverage, low data rates, and low power consumption, making it a suitable choice for the growing Internet of Things and machine-to-machine communication applicat...
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Andrey V. Savkin, Satish Chandra Verma and Stuart Anstee
This paper focuses on safe navigation of an unmanned surface vehicle in proximity to a submerged autonomous underwater vehicle so as to maximise short-range, through-water data transmission while minimising the probability that the two vehicles will acci...
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