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961 articles for “Signals”
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Inhibition of PI3K/Akt/mTOR Signaling Pathway by Vitis Vinifera Phytocompounds: A Promising Strategy for Supressing Colorectal Cancer Growth and Metastasis
Abstract: Objectives: Colorectal cancer was not typically identified a few decades ago. Today, with almost 900 000 fatalities each year, it is the fourth most dangerous cancer in the world. Colorectal cancer is responsible for about 10% of all cancer diagnoses annually and cancer-related deaths worldwide. It is the second most common type of cancer in women and the third most common type in men. Incidence and death are roughly 25% …
Published in International Journal of Cell Biology and Cellular Functions · Vol. 1, Issue 2, 2023 · pp. 64–75 Read article
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Congenital Heart Disease (CHD) Detection Technique Based on Analysis and Classification of ECG Signal
Abstract: As per American Heart Association information, every year 125 babies out of 1000 are born with congenital heart disease (CHD). It was estimated that 36000 children are live born with CHD each year in the European Union. Child with CHD may have hole in heart up to 3–5 mm as small defects and for large defects it may go up to 5–8 mm. Depending upon the size of hole in …
Published in Current Trends in Signal Processing · Vol. 6, Issue 3, 2016 · pp. 29–27 Read article
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Signal Transduction Pathways in Xenotransplantation: Insights and Implications
Abstract: In this article, we will discuss Xenotransplantation which is used for the transplantation of tissues or organs cells from one species to another species. It holds tremendous promise for addressing the clinical shortage of human organs for transplantation. In this review we provide a comprehensive analysis of the key signal transduction involved in xenotransplantation is paramount for overcoming these hurdles and advancing the field toward clinical application. Many studies on …
Published in Current Trends in Signal Processing · Vol. 13, Issue 3, 2023 · pp. 15–23 Read article
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Signal Modeling, Control and Simulation of Boost Converter Using PV Cell
Abstract: DC-DC converters are switched power converters. They are used to convert one DC voltage to another DC voltage. It is inordinately used in industry as well as in research. The model of the converter system varies from the ON state to the OFF state. The major drawback of the boost converter is the uncontrolled supply of voltage and current. So, a convectional PID controller is designed to regulate the output …
Published in Journal of Control & Instrumentation · Vol. 6, Issue 3, 2015 · pp. 23–30 Read article
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Analysis of Signal Delay in Carbon Nano Tube based Interconnects at 32 nm Technology Node
Abstract: AbstractIn the present world demand for portable devices and high speed processor is rising which brings out a challenging issue of scaling for designers. In this paper, we have presented the effect of copper and CNT based interconnects for different length at 32 nm technology node. The performance of both types of interconnects are analyzed and compared in form of propagation delay. Propagation delay in interconnects between the elements is …
Published in Journal of Microelectronics and Solid State Devices · Vol. 5, Issue 1, 2018 · pp. 20–26 Read article
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FPGA Implementation of Variable Step Size Adaptive Filters for Signal De-noising
Abstract: This paper presents the design and implementation of a variable step size 40 order adaptive filter for de-noising acoustic signals. Four different adaptive filters (LMS, Sign-Data, Sign-Error and Sign-Sign) were designed using three different structures, viz., direct form, transposed and the proposed structure and their de-nosing performance was compared. Further, the filters were implemented on three different Field programmable gate arrays (FPGAs), viz., Spartan 6, Virtex 6 and Viretx 7 …
Published in Journal of Semiconductor Devices and Circuits · Vol. 1, Issue 3, 2014 · pp. 7–19 Read article
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Reconfiguring CMOS Driver and Receiver Pair as Pseudo NMOS for Low-swing Signaling On-chip Interconnects
Abstract: The Low power bus architecture [9, 12, 13] consists of Driver, Receiver and Interconnects in between them inside the Chip. The Low power bus architecture [1] models are classified in to Symmetric and Asymmetric [7, 11, 14, 15] based on low voltage scaling technique and very simple design principles were utilized to construct driver, receiver and interconnects. The low power bus driver has the ability to switch from a low …
Published in Journal of VLSI Design Tools and Technology · Vol. 3, Issue 1, 2013 · pp. 20–27 Read article
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Hematopoietic stem progenitor cells reduce the proliferation of Tregs via regulation of IL-12/STAT4 signaling during chronic stress
Abstract: Abstract. Physical or psychological chronic stress mediates the impaired immune response by inducing the proliferation of regulatory T cells (Tregs). Our recent studies showed that hematopoietic stem progenitor cells (HSPCs) significantly modulated the immune system. HSPCs prevented stress-induced lymphocyte apoptosis, exerting a protective effect in chronic stress-induced immune responses. Thus, whether HSPCs could prevent the proliferation of Tregs in conditions of chronic stress was assessed in the present study. Injection …
Published in Research and Reviews : A Journal of Immunology · Vol. 12, Issue 3, 2022 · pp. 1–10 Read article
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Noise-Resilient QPSK Modem for Reliable Communication for Green Communication
Abstract: The channel noise is the severely degraded the performance of communication system and that also limits the maximum data transmission rate. Hence, it is required to design a demodulator in a receiver which overcomes the effect of noise in the received signal, reconstructs un-corrupted information signal and improves data rate. In QPSK, noise effect the phase of the modulated signal and that causes error in the information signal. This study …
Published in Recent Trends in Electronics Communication Systems · Vol. 12, Issue 1, 2025 · pp. 36–46 Read article
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Signal Transmission in Underwater Using Passive Time Reversal for Single and Multiuser
Abstract: This paper describes passive time reversal communications, which enables multiple users to send information simultaneously to the time reversal array. Experimental results at 3.5 kHz with a 1 kHz bandwidth demonstrate that as many as six users can transmit information over a 4 km range in a 120 m deep water using quaternary phase-shift keying (QPSK) modulation, achieving an aggregate data rate of 6 kb/s. Moreover, the same data rate …
Published in Current Trends in Signal Processing · Vol. 6, Issue 2, 2016 · pp. 49–54 Read article
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STUDY OF SMALL SIGNAL DISTUBANCES IN MULTI MACHINE POWER SYSTEM USING MATLAB
Abstract: The distance of electricity transmission gets longer and longer, and capacity is also increasing, the voltage level by transport is becoming more and higher, while the stability problem of power system is more and more prominent. If the power system's stability is destroyed, it can cause a very serious problem. This report describes the computational technique used to solve the large and complex mathematical problem in an easier and convenient …
Published in Journal of Industrial Safety Engineering · Vol. 6, Issue 1, 2019 · pp. 36–66 Read article
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Study of Current Conveyors for Signal Processing Applications
Abstract: Current conveyors are basic analog building blocks used for voltage as well as current processing applications. Current conveyors are used as a voltage or current buffer in many applications. They are used for high frequency, high bandwidth, high dynamic range, better linearity, high driving capability, low voltage and low power applications. Current conveyors modify the limitations of low impedance at the output, tradeoff between speed and bandwidth and constant gain …
Published in Journal of Microelectronics and Solid State Devices · Vol. 4, Issue 1, 2017 · pp. 7–14 Read article
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Effect of Various Wavelength of Light Signal Over PV Cell
Abstract: Sun is an everlasting pollution free cradle of energy and solar cell have practically negligible operating cost with lifetime of 30 years, the only budgetary investment is the initial manufacturing cost. Due to photovoltaic outcome in Solar cell , the photons are transformed in to electricity , therefore the solar energy can be used for direct electricity generation .The proficiency of Photovoltaic cell are exaggerated by various atmospheric parameters like …
Published in Journal of Microelectronics and Solid State Devices · Vol. 2, Issue 2, 2015 · pp. 5–9 Read article
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Visible Light Communication System with Various OFDM Signaling Techniques for IM/DD Channels
Abstract: Lightening using light emitting diodes is very energy efficient method for illumination. This type of communication is known as visible light communication. Further, with the use of OFDM technique, multiuser communication is also possible in VLC. But the problem with OFDM is that it has both positive and negative amplitude, due to which it is not preferable for direct detection channels. For making it worthy for VLC in all manners, …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 3, Issue 3, 2016 · pp. 21–24 Read article
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Understanding of optical power in semiconductor based SOI Structure at the signal 1550 nm
Abstract: A silicon-on-insulator (SOI) structure consists of a single crystalline silicon layer separated from the bulk substrate by a thin insulator layer. The insulator in SOI wafers is usually always a thermal silicon oxide (SiO2) layer, with a silicon wafer as the substrate. The silicon sheet can be very thin (50 nm for fully depleted transistors) or tens of micrometres thick, depending on the application. Similarly, the thickness of buried oxide …
Published in Trends in Opto-electro & Optical Communication · Vol. 12, Issue 1, 2022 · pp. 19–23 Read article
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Identification of English Dialects and Emotions using Spectral and Prosodic Features of Speech Signal Processing
Abstract: AbstractIn this paper, the authors have explored speech features to identify English dialects and emotions. A dialect is any distinguishable variety of a language spoken by a group of people. Emotions provide naturalness to speech. Speech database considered for dialect identification task consists of spontaneous speech spoken by male and female speakers. The emotions considered in this study are anger, disgust, fear, happy, neutral and sad. Prosodic and spectral features …
Published in Journal of Computer Technology & Applications · Vol. 4, Issue 2, 2013 · pp. 10–17 Read article
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Music on Mind and Body: A Simultaneous EEG and EMG Study to Quantify Emotions from Hindustani Classical Music
Abstract: With the advent of various techniques to assess the bioelectric signals on the surface of the body, it has become possible to develop various human-computer interface systems. In this study, for the first-time a cross- correlation based data is reported for two-different types of bio-signals viz. EEG (Electroencephalography) and EMG (Electromyography). Whereas EEG refers to the neuro-electric impulses generated in the brain recorded in the form of electric potentials, EMG …
Published in Research and Reviews: A Journal of Neuroscience · Vol. 9, Issue 2, 2019 · pp. 27–38 Read article
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Orthogonal Thirty-Two Phase Sequence Sets Design
Abstract: In using orthogonal signals, a multi-input, multi-output (MIMO) radar system and a spread spectrum communication system can improve operating efficiency. The usage of polyphase coded signals as pulse compression sequences sets is a superior alternative. The Modified Genetic Algorithm (MGA) is utilized as a global optimization strategy to create thirty-two phase sequence sets in this work. Design orthogonal thirty-two phase sequence sets with an impulse-like Autocorrelation Function (ACF) and a …
Published in Current Trends in Signal Processing · Vol. 12, Issue 2, 2022 · pp. 33–39 Read article
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Design of EMG based Control System for Prosthetic Arm
Abstract: Prosthesis, field of bio-mechatronics, is an artificial extension used to replace the function or appearance of a missing limb or lost body part due to injury (traumatic), to correct congenital deficiencies or to supplement defective body parts. A myoelectrically controlled prosthesis detects muscle contractions using electrodes and this electrical activity acts as a signal to activate the prosthesis. In the presented work, the EMG signal is acquired using surface electrodes …
Published in Journal of Electronic Design Technology · Vol. 4, Issue 2, 2013 · pp. 1–6 Read article
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Indoor Localization of Mobile Device Using Fingerprinting Technique
Abstract: AbstractIndoor localization technology is real-time tracking of any device or person in an indoor area via a control device. In this paper, the fingerprinting method is utilized to track mobile devices in a specific indoor area. Fingerprinting, also known as pattern matching or database correlation method (DCM), needs a powerful received signal strength indication (RSSI) database which helps to make signal strength maps as well as used for matching. The …
Published in Recent Trends in Electronics Communication Systems · Vol. 4, Issue 3, 2017 · pp. 1–8 Read article