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Toplam kayıt 62, listelenen: 21-30
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 ...
Innovative Polygon Trend Analysis (IPTA) and applications
(Elsevier, 2019)
Trend analysis is continuously in the research and application agenda due to climate change effect searches on various engineering, social, economic, agriculture, environmental and water resources design, management, ...
Engineering self-standing Si-Mo-O based nanostructure arrays as anodes for new era lithium-ion batteries
(Springer, 2019)
For the first time, Si-Mo-O helices have been produced by the ion-assisted glancing angle electron beam co-evaporation of molybdenum oxide and silicon. Since the electron beam evaporation process forms metastable particles ...
Partial trend identification by change-point successive average methodology (SAM)
(Elsevier Science Bv, 2019)
There are different trend identification methodologies in the literature, but almost all are for monotonic trend searches within a given hydro-meteorological time series partially at equal epochs or holistically over the ...
Groundwater recharge level estimation from rainfall record probability match methodology
(Springer, 2019)
Groundwater reservoirs’ assessment and management studies present more difficulties compared to surface water resources, because their storage media are geological formations, which have spatial heterogeneities that cannot ...
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. ...
Imaging of the axon initial segment
(Blackwell Publishing, Inc., 2019)
The axon initial segment (AIS) is the first 20- to 60-μm segment of the axon proximal to the soma of a neuron. This highly specialized subcellular domain is the initiation site of the action potential and contains a high ...
Modulation options for OFDM-based waveforms: Classification, comparison, and future directions
(IEEE-Inst Electrİcal Electronics Engineers Inc, 2019)
This paper provides a comparative study on the performance of different modulation options for orthogonal frequency division multiplexing (OFDM) in terms of their spectral efficiency, reliability, peak-to-average power ...
Fading-aligned OFDM with index modulation for mMTC services
(Elsevier B.V., 2019)
5th generation (5G) of wireless networking is coming with diverse use cases, such as enhanced-Mobile BroadBand (eMBB), Ultra Reliable and Low Latency Communications (URLLC), and massive Machine Type Communications (mMTC). ...
Exploiting sparsity recovery for compressive spectrum sensing: A machine learning approach
(Institute of Electrical and Electronics Engineers Inc., 2019)
Sub-Nyquist sampling for spectrum sensing has the advantages of reducing the sampling and computational complexity burdens. However, determining the sparsity of the underlying spectrum is still a challenging issue for this ...