Results 251 to 260 of about 854,677 (295)
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Characterization of multipath fading channels: channels with specular components
IEEE Transactions on Wireless Communications, 2005A set of parameters collectively called recentered normalized mean square correlation (RC-NMSR) are introduced to characterize the quality of multipath fading channels with nonzero specular components. The consideration of nonzero specular components requires nontrivial generalization of the parameters previously introduced for wide-sense stationary ...
Do-Sik Yoo, Wayne E. Stark
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hKv4.3 Channel Characterization and Regulation by Calcium Channel Antagonists
Biochemical and Biophysical Research Communications, 2001Relative expression pattern of short and long isoforms of hKv4.3 channels was evaluated by RT-PCR and RPA. Electrophysiological studies were performed in HEK293 cells transfected with short or long hKv4.3 cDNA. The long variant L-hKv4.3 was the only form present in lung, pancreas, and small intestine. The short variant S-hKv4.3 was predominant in brain
T P, Calmels +5 more
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Characterization of Calcium Channel Binding
Current Protocols in Pharmacology, 2001AbstractVoltage‐dependent calcium channels are expressed in a variety of tissues including heart, muscles and brain. Saturation binding of a radioligand to the calcium channel is commonly used to characterize the expression level of the channel protein.
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On the Formal Characterization of Covert Channel
2004This paper presents a formal characterization model for covert channel. Some characteristic properties are proposed. The system characteristics are used to guide the development of covert channel identification and elimination algorithms. In addition, we audit a covert channel and evaluate the developed algorithms quantitatively with our formalism.
Shiguang Ju, Xiaoyu Song
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Characterizing Intra-Car Wireless Channels
IEEE Transactions on Vehicular Technology, 2009This paper describes the methodology and results of a series of experiments performed to characterize intra-car wireless channels. Specifically, the experiments target parameters such as the coherence time, statistics of channel loss, and fade statistics.
Amir R. Moghimi +3 more
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Characterization of the Ultra-Wide Band Channel
IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005., 2005Ultra wide band (UWB) is an emerging wireless technology. It is referred to as baseband, impulse or carrier-free, and it has been proposed for unlicensed operations over bandwidth spanning several GHz, provided the power spectral density of transmitted signals are adherent to some emission masks.
Di Renzo M +4 more
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Channel characterization using jitter measurements
2013 IEEE International Symposium on Circuits and Systems (ISCAS2013), 2013This paper proposes a technique for characterization of the frequency-dependent losses in a wireline communications link. By using the measured jitter at the output of a receiver front-end as its only input, this method is able to estimate both the pulse response and frequency response of the link, including the effects of the transmitter output, the ...
Dustin Dunwell +2 more
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Constructing and characterizing covert channels on GPGPUs
Proceedings of the 50th Annual IEEE/ACM International Symposium on Microarchitecture, 2017General Purpose Graphics Processing Units (GPGPUs) are present in most modern computing platforms. They are also increasingly integrated as a computational resource on clusters, data centers, and cloud infrastructure, making them possible targets for attacks. We present a first study of covert channel attacks on GPGPUs.
Hoda Naghibijouybari +2 more
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Characterization of micellar-packaged gramicidin a channels
Biochemical and Biophysical Research Communications, 1979The effects of heating, on an aqueous gramicidin A lysolecithin system, were examined by carbon-13 nuclear magnetic resonance (13C-NMR), circular dichroism (CD), and sodium-23 nuclear magnetic resonance (23Na-NMR), and the results are collectively interpreted to indicate micellar-packaging of gramicidin channels and cation occupancy in the channel. 13C-
D W, Urry, A, Spisni, A, Khaled
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Characterization of channel-forming peptide nanostructures
Biophysical Chemistry, 2012We have prepared fluorescent analogs of known ion-channel-forming synthetic peptide nanostructures. These analogs were designed as probes to gain insight about the mechanism by which self-assembling amphiphilic peptides interact with lipid membranes. Conformational studies demonstrated that the labeled analogs retain their propensity to adopt a strong ...
Mathieu, Arseneault +3 more
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