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29 articles for “modulator”
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Research ArticleOpen accessEvery word in the titleModulatory Effects of Bryophyllum Pinnatum Leaves Extract on Peroxidation Indices of CCl4 Induced-Hepatotoxicity in Wistar Albino RatsChioma Assumpta Anosike, Sophia Uyo Mokwunye, Victor Eshu Okpashi, Obiorah AbonyiThis research investigated the modulatory effect of methanol extract of Bryophyllum pinnatum leaves on peroxidation indices of CCl4-induced hepatotoxicity. Thirty rats of average weight 150g divided into six groups of 5 rats each were used for the study. Group one (control) received water and paraffin for ten days. Group two (treatment control) received water only, group 3 (standard control), received … …American Journal of Pharmacology and Toxicology, Vol. 12, Issue 3 · 17 Dec 2017 · 7,448 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSoftware Defined Radio Implementation of a QPSK Modulator/Demodulator in an Extensive Hardware Platform Based on FPGAs Xilinx ZYNQSérgio Bimbi Junior, Vitor Chaves de Oliveira, Gunnar Bedicks JuniorSoftware Defined Radio (SDR) technology enables wireless devices deployment with support to multiple interfaces in modulation formats and it has gained importance due to the current wireless standards proliferation. In order to activate these functionalities it is necessary to apply SDR inside a reconfigurable hardware such as the Field Programmable Gate Array (FPGA). In this study, design procedures developments are … …Journal of Computer Science, Vol. 11, Issue 4 · 2 Jun 2015 · 8,813 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleM-ARRAY QUADRATURE AMPLITUDE MODULATION WIRELESS SENSOR NETWORK MODULATOR RELIABILITY AND ACCURACY ANALYZE IN CIVIL SHMMohammud Ershadul Haque, Mohammud Fauzi Mohammud Zain, Maslina Jamil et al.Wireless Sensor Network (WSN) is the new invention applying for assessment the damage of the historical or high rise civil building structural health. Technical challenges affecting deployment of wireless sensor network including the range of the transmission problem, low data transmission rate of the existing SHM strategies. The most vital factor of SHM wireless sensor systems is the modulator accuracy … …Journal of Computer Science, Vol. 9, Issue 12 · 25 Nov 2013 · 7,032 accessesView PDFCite
Research ArticleOpen accessIn the keywordsVLSI Implementation of Novel Class of High Speed Pipelined Digital Signal Processing Filter for Wireless ReceiversRozita Teymourzadeh, Yazan Samir Algnabi, Masuri Othman et al.Problem statement: The need for high performance transceiver with high Signal to Noise Ratio (SNR) has driven the communication system to utilize latest technique identified as over sampling systems. It was the most economical modulator and decimation in communication system. It has been proven to increase the SNR and is used in many high performance systems such as in the … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 4 · 5 Nov 2010 · 7,815 accessesView PDFCite
Research ArticleOpen accessIn the keywordsCoherent Polarization Shift Keying Modulated Free Space Optical Links Over a Gamma-Gamma Turbulence ChannelX. Tang, Z. Ghassemlooy, S. Rajbhandari et al.Problem statement: The optical signal propagating through the Free Space Optical (FSO) channel suffers from irradiance and phase fluctuations caused by the atmospheric turbulence, which results in Bit Error Rate (BER) performance degradation. Approach: In this study the performance of the Multilevel Coherent Polarization Shift Keying (M-POLSK) based FSO communication system operating over the gamma-gamma turbulence channel is investigated. To … …American Journal of Engineering and Applied Sciences, Vol. 4, Issue 4 · 18 Jan 2012 · 7,954 accessesView PDFCite
Research ArticleOpen accessIn the keywordsComparative Studies on the Performance of Low Power Transmitters for Wireless Sensor NodesT. Sasilatha, J. RajaProblem statement: Power consumption was one of the most challenging aspects to design low power wireless sensor nodes. The objectives of the study were to (i) Design low voltage, low power transmitters for wireless sensor nodes and (ii) Compare and analyze the performance of the transmitters. Approach: The transmitters employed direct digital modulation scheme to reduce the power consumption of … …Journal of Computer Science, Vol. 5, Issue 2 · 28 Feb 2009 · 7,450 accessesView PDFCite
Research ArticleOpen accessIn the abstractInverse Correlation Between α-Klotho and Diabetic Biomarkers in Type 2 Diabetes: A Cross-Sectional StudyYaser A.M Sulaiman, Moayad M. Al Anzy, Omeed Akbar Ali, Adnan M. IsmailEvidence suggests a link between diabetes and Klotho protein, demonstrated by reduced Klotho gene expression in individuals with diabetes, α- klotho the potential modulator of kidney health in DM. Klotho is primarily expressed in the kidneys and has an anti-inflammatory and antioxidant role, which may protect against the pathological processes that damage renal function in diabetes. Research conducted in Japan … …American Journal of Biochemistry and Biotechnology, Vol. 22, Issue 2 · 2 Jul 2026 · 837 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Polysaccharide-Rich Fraction Derived from Oviductus ranae with Antioxidant and Immunomodulatory PotentialsXiaojin Yu, Xinyu Wang, Xinyu Liu et al.Oviductus ranae, an animal-based traditional Chinese medicinal material listed in Chinese Pharmacopeia is widely consumed as tonic, approximately twenty Oviductus ranae-related functional foods have been approved on the market by National Medical Products Administration in China. Proteins are well-defined bioconstituents in Oviductus ranae, little information is availabe on its polysaccharides. In present work, a Polysaccharide-Rich fraction (POR-3) was fractionated from … …American Journal of Biochemistry and Biotechnology, Vol. 16, Issue 3 · 13 Sep 2020 · 6,620 accessesView PDFCite
EditorialOpen accessIn the abstractAre we Able to Harness the Immunomodulatory Power of Cytokines for Novel Autoimmune Disease Treatments?Giuseppe Nocentini, Graziella Migliorati, Carlo RiccardiSince the end of the 1970s, interleukin 2 (IL-2) has been known as a key player in T cell expansion/activation (Watson et al., 1980). In the late 1980s, some groups used IL-2 to stimulate the immune systems of tumour patients (Jacobs et al., 1986). The idea seemed brilliant and several attempts were made, but the results were disappointing (Lim et … …American Journal of Pharmacology and Toxicology, Vol. 10, Issue 2 · 22 Oct 2015 · 7,625 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Optimal Implementation of a Generator of SinusoidSouhila Boudjema, Kaddour SaouchiThe embedded systems occupy a place increasingly important in our daily life. In recent years much of research it is focused on the miniaturization of the various electronic devices. In this study we present the architecture of a digital generator of frequency based on trigonometrically algorithm to obtain sample high frequencies. We treat a comparative study between various processors CORDIC: … …American Journal of Applied Sciences, Vol. 12, Issue 8 · 17 Sep 2015 · 6,292 accessesView PDFCite