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Toplam kayıt 255, listelenen: 71-80
DFT-based multi-directions directional modulation
(Institute of Electrical and Electronics Engineers, 2019)
In this letter, a physically secure multi-directions directional modulation scheme is proposed. The scheme provides an adaptive beam-width assignment, where each user is granted a different beam width based on its channel ...
Predicting path loss distribution of an area from satellite ımages using deep learning
(IEEE - Institute of Electrical and Electronics Engineers, Inc., 2020)
Path loss prediction is essential for network planning in any wireless communication system. For cellular networks, it is usually achieved through extensive received signal power measurements in the target area. When the ...
Enhancing physical layer security in AF relay-assisted multicarrier wireless transmission
(Wiley, 2018)
In this paper, we study the physical layer security problem in the dual-hop orthogonal frequency division multiplexing-based wireless communication system. First, we consider a single-user single-relay system and study a ...
Scattering from chiral cylinders of arbitrary cross-sections above a ground plane
(IEEE-Institute of Electrical and Electronics Engineers Inc, 2021)
The main purpose of this work is to solve the problem of electromagnetic scattering from a chiral cylinder of arbitrary cross-section above an infinite perfect electric conducting (PEC) plane. Using image theory, this ...
High-gain pattern reconfigurable MIMO antenna array for wireless handheld terminals
(The Institute of Electrical and Electronics Engineers, 2016)
The analysis, design, experimental development, and test results of a high-gain pattern reconfigurable antenna array are presented. Unlike traditional phased arrays, the proposed array has a compressed footprint making it ...
Time-domain iterative multiregion technique for 3-D scattering and radiation problems
(Ieee-Inst Electrical Electronics Engineers Inc, 2016)
Integration of the finite-difference time-domain (FDTD) method into the iterative multiregion (IMR) technique, an iterative approach used to solve large-scale electromagnetic scattering and radiation problems, is presented ...
Cytotoxicity of standardized curcuminoids mixture against epithelial ovarian cancer cell line SKOV-3
(MDPI, 2020)
Herbal medicine has been in use for centuries for a wide variety of ailments; however, the efficacy of its therapeutic agents in modern medicine is currently being studied. Curcuminoids are an example of natural agents, ...
The role of positive and negative pressure on cavitation nucleation in nanodroplet-mediated histotripsy
(Iop Publishing Ltd, 2016)
Nanodroplet-mediated histotripsy (NMH) is an ultrasound ablation technique combining histotripsy with acoustically sensitive perfluorocarbon (PFC) nanodroplets that can be selectively delivered to tumor cells for targeted ...
Temperature and precipitation risk assessment under climate change effect in northeast algeria
(Springer International Publishing AG, 2020)
Climate change impacts on social, economic, industrial, agricultural, and water resource systems tend to increase incrementally with each passing day. Therefore, it is necessary to plan to control its effects, especially ...
Development of acoustically active nanocones using the host-guest interaction as a new histotripsy agent
(American Chemical Society, 2019)
Histotripsy is a noninvasive and nonthermal ultrasound ablation technique, which mechanically ablates the tissues using very short, focused, high-pressured ultrasound pulses to generate dense cavitating bubble cloud. ...