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652 articles for “signal”
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Research ArticleOpen accessEvery word in the titleUsing Invariant Translation to Denoise Electroencephalogram SignalsJanett Walters-Williams, Yan LiProblem statement: Because of the distance between the skull and the brain and their different resistivity's, Electroencephalogram (EEG) recordings on a machine is usually mixed with the activities generated within the area called noise. EEG signals have been used to diagnose major brain diseases such as Epilepsy, narcolepsy and dementia. The presence of these noises however can result in misdiagnosis, … …American Journal of Applied Sciences, Vol. 8, Issue 11 · 5 Oct 2011 · 7,508 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleTraffic Signal Using Smart Agent SystemCheonshik Kim, You-Sik HongIn this research, we propose an electro-sensitive traffic light using the smart agent algorithm to reduce traffic congestion and traffic accidents. The multi-agent system approach can provide a new and preferable solution. The proposed method adaptively controls the cycle of traffic signals even though the traffic volume varies. Consequently, we reduce the car waiting time and start-up delay time using … …American Journal of Applied Sciences, Vol. 5, Issue 11 · 30 Nov 2008 · 6,957 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSEGMENTATION OF ELECTROENCEPHALOGRAM SIGNALS DURING EPILEPTIC SEIZURES BY USING FUZZY C-MEANSMuhammad Abdy, Tahir AhmadElectroencephalogram (EEG) is a recording of electrical activity of the brain. It contains valuable information related to the different physiological states of the brain. A quantitative EEG analysis has been developed over the years that introduce objective measure, reflecting not only the characteristics of the brain activity itself but also giving clues concerning the underlying associated neural dynamics. In this … …American Journal of Applied Sciences, Vol. 11, Issue 10 · 11 Nov 2014 · 6,230 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleA Qualitative Analysis of Independent Component Analysis Based Algorithms for the Removal of Artifacts from Electroencephalography SignalsBalaiah Paulchamy, Ilavennila, Jayabalan JayaProblem statement: Independent Component Analysis (ICA) based algorithms applied in the context to remove the artifacts from the EEG signals are evaluated with appropriate metrics and it compares and contrasts the performance of the different methods for such applications. The primary goal is to gain some insight into relative performance of the various methods. Approach: CA is a statistical and … …Journal of Computer Science, Vol. 8, Issue 3 · 6 Jan 2012 · 6,983 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSignaling Pathways Involved In Dengue-2 Virus Infection Induced RANTES OverexpressionYing-Ray Lee, Huan-Yao Lei, Shun-Hua Chen et al.Dengue viruses participate in liver inflammation by inducting the expression of various chemokines including Regulated on Activation Normal T-cell Expressed and Secreted (RANTES). However, the underlying signaling remains unknown. Here, we reveal that Ras, Raf-1 and three mitogen-activated protein kinases (MAPKs) p38, extracellular signal-regulated kinase (Erk), and c-jun-NH2-terminal kinase (JNK) can be activated or phosphorylated in dengue-2 virus infected hepatocyte … …American Journal of Infectious Diseases, Vol. 4, Issue 1 · 31 Mar 2008 · 7,173 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleRole of the Wnt/β-Catenin Signaling Pathway in Reducing Lipogenesis of Obese Rats Under Hypoxic ExercisePeiming Xu, Zhiyuan Sun, Xiaoyi Tian et al.Hypoxic exercise exerts a significant effect on body weight loss and body fat reduction. Methods: In the present study, we constructed an obese rat model and divided rats into the following groups: Normoxic quiet (C), Hypoxic quiet (H), Normoxic Exercise (CE), and Hypoxic Exercise (HE). We employed isobaric tags for relative and absolute quantification (iTRAQ) using proteomic technology to screen … …American Journal of Biochemistry and Biotechnology, Vol. 18, Issue 2 · 3 Jun 2022 · 5,737 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEconomic Signaling and Distributive Efficiency of Judicial DecisionsEdmund H. MantellProblem statement: This study considered the problem of how a judge can render an optimal decision in a lawsuit where two litigants each assert a property right in a case where the relevant information is asymmetrically distributed between the parties and the judicial decision-maker. Approach: The research embodied in this study defines an optimal decision as one reflecting the distributive … …Journal of Social Sciences, Vol. 6, Issue 2 · 30 Jun 2010 · 8,210 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleConfidence Intervals for Signal to Noise Ratio of a Poisson DistributionFlorence George, B.M. Golam KibriaThe Poisson distribution is one of the most useful probability distributions to fit rare event data. Confidence interval for the SNR is an important issue among the researchers in image processing. This study considers several confidence intervals for the SNR of a Poisson distribution. Different confidence intervals available in literature are reviewed and compared based on the coverage probability and … …Current Research in Biostatistics, Vol. 2, Issue 2 · 19 Sep 2012 · 13,909 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAnalytical Study of Signal-to-Noise Ratio for Visible Light Communication by Using Single SourceMohammad Syuhaimi Ab-Rahman, Nurain Izzati Shuhaimi, Luqman Al-Hakim Azizan, Mazen Radhe HassanProblem statement: In this study, optical wireless communication system using visible light is studied for indoor application. Approach: The process started with the calculation on performance of single source white LED where received power, channel DC gain and quality of data transmission (SNR computation) are identified. Through the simulation results, the SNR performance is directly proportional to angle of incident … …Journal of Computer Science, Vol. 8, Issue 1 · 2 Nov 2011 · 7,479 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSpeech Signal Analysis in Phase DomainHusne Ara Chowdhury, Mohammad Shahidur RahmanSpeech signal analysis based on the Phase Spectrum (PS) in the recent years becomes more popular to the researchers due to its attractive properties. Though some problem arises during its processing but appropriate modification gives the useful result. In this study, we proposed a new method of speech signal analysis based on its phase spectral representation. After analyzing the PS … …Journal of Computer Science, Vol. 16, Issue 8 · 10 Aug 2020 · 6,737 accessesView PDFCite