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652 articles for “Wi-Fi Signal”
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Research ArticleOpen accessIn the abstractNutritional control of HIV-AIDS-A case for SeleniumParisa Kalantari, Hema Vunta, Umamaheswari D. Palempalli et al.Selenium (Se) is a micronutrient that is incorporated into proteins. Some of the selenoenzymes such as GPXs and thioredoxin reductases exhibit glutathione peroxidase-dependent activities towards organic and inorganic peroxides. Thus, selenoenzymes play a pivotal role in mitigating oxidative stress caused by accumulation of peroxides. In this respect, selenoproteins may interfere with the transcription-driven by oxidative stress-dependent signaling mechanisms to influence … …American Journal of Infectious Diseases, Vol. 3, Issue 4 · 31 Dec 2007 · 7,346 accessesView PDFCite
Research ArticleOpen accessIn the abstractSimulation Model of Brushless Excitation SystemAhmed N. Abd AllaExcitation system is key element in the dynamic performance of electric power systems, accurate excitation models are of great importance in simulating and investigating the power system transient phenomena. Parameter identification of the Brushless excitation system was presented. First a block diagram for the EXS parameter was proposed based on the documents and maps in the power station. To identify … …American Journal of Applied Sciences, Vol. 4, Issue 12 · 31 Dec 2007 · 7,528 accessesView PDFCite
Research ArticleOpen accessIn the abstractClinical and Surgical Findings and Outcome Following Rumenotomy in Adult Dairy Cattle Affected with Recurrent Rumen Tympany Associated with Non-Metallic Foreign BodiesZ. Bani Ismail, A. Al-Majali, K. Al-QudahMedical records of 31 adult dairy cows suffering from recurrent rumen tympany for at least 1 month duration that underwent exploratory laparotomy and rumenotomy were reviewed and information was obtained on signalment, history, physical examination findings, laboratory findings and surgical findings. Cases were categorized according to surgical findings into 3 groups. Group 1 (n = 10) included cattle with reticuloruminal, … …American Journal of Animal and Veterinary Sciences, Vol. 2, Issue 3 · 30 Sep 2007 · 8,931 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Novel Service Mobility Architecture for SIP EnvironmentsThierno Bah, Samuel Pierre, Roch GlithoLately, the proliferation of small portable devices has driven the introduction of a new mobility concept called service mobility. In order to support service mobility, we introduce a new architecture implementing mechanisms to access end user’s personalized services regardless of his physical location. The proposed architecture leverages on mobile agent technology to transport and move services to the end user’s … …Journal of Computer Science, Vol. 3, Issue 8 · 31 Aug 2007 · 6,822 accessesView PDFCite
Research ArticleOpen accessIn the abstractArtificial Intelligence Based Three-Phase Unified Power Quality ConditionerMoleykutty GeorgePower quality is an important measure of the performance of an electrical power system. This paper discusses the topology, control strategies using artificial intelligent based controllers and the performance of a unified power quality conditioner for power quality improvement. UPQC is an integration of shunt and series compensation to limit the harmonic contamination within 5 %, the limit imposed by … …Journal of Computer Science, Vol. 3, Issue 7 · 31 Jul 2007 · 6,913 accessesView PDFCite
Research ArticleOpen accessIn the abstractWavelet and ANN Based Relaying for Power Transformer ProtectionS. Sudha, A. Ebenezer JeyakumarThis paper presents an efficient wavelet and neural network (WNN) based algorithm for distinguishing magnetizing inrush currents from internal fault currents in three phase power transformers. The wavelet transform is applied first to decompose the current signals of the power transformer into a series of detailed wavelet components. The values of the detailed coefficients obtained can accurately discriminate between an … …Journal of Computer Science, Vol. 3, Issue 6 · 30 Jun 2007 · 6,784 accessesView PDFCite
Research ArticleOpen accessIn the abstractExpression of Toll-like Receptors (TLRs) and Nucleotide-binding Oligomerization Domain (NODs) in murine peritoneal macrophages on in vitro treatment with Thymosin α 1Shikha Tarang, Ajit SodhiThymosin α 1 (Tα1) treatment of murine peritoneal macrophages in vitro induces the expression of TLRs and Nod2 proteins. Enhanced expressions of TLR2, -4, -5, -6, -7, -8, -9 and Nod2 were observed by RT-PCR and western blotting. Expression of downstream signaling molecules - MyD88, IRAK1, TRAF6, IRF3 were also up regulated on treatment with Tα1. It was also observed … …American Journal of Immunology, Vol. 3, Issue 1 · 30 Jun 2007 · 7,154 accessesView PDFCite
Research ArticleOpen accessIn the abstractOn the Pulsewidth Analysis in the Presence of PMD and PDL in Optical Fibers Using Neural Network AlgorithmA. Sivasubramanian, V. C. RavichandranIn long haul networks, the random birefringence induced in the optical fiber leads to a considerable Polarization Mode Dispersion (PMD). Polarization Dependent Loss (PDL) mainly occurs in optical components and depends on the state of polarization of optical signals. The presence of PMD and PDL causes pulsewidth narrowing and the pulsewidth reduction depends on states of polarization at which the … …Journal of Computer Science, Vol. 3, Issue 4 · 30 Apr 2007 · 7,055 accessesView PDFCite
Research ArticleOpen accessIn the abstractRainfall Attenuation and Rainfall Rate Measurements in Malaysia Comparison with Prediction ModelsMandeep Singh Jit Singh, Syed Idris Syed Hassan, Mohd Fadzil AinAttenuation due to rain is a primary cause of communication impairment on satellite-earth paths, especially above 10GHz. Rainfall is a serious source of attenuation at such a frequency. This paper presents the characteristics of rain distribution in USM based on measured one minute rain rate. For attenuation of rain, predictions models like ITU and VIHT (Variable Isotherm Height Technique) model … …American Journal of Applied Sciences, Vol. 4, Issue 1 · 30 Apr 2007 · 6,939 accessesView PDFCite
Research ArticleOpen accessIn the abstractFuzzy Logic Controller Based Three-phase Shunt Active Filter for Line Harmonics ReductionC. Sharmeela, M. R. Mohan, G. Uma, J. BaskaranHarmonic distortion is a form of electrical noise. It is a superposition of signals, which are of multiples of fundamental frequency. Proliferation of large power electronic systems results in increased harmonic distortion. Harmonic distortion results in reduction of power quality and system stability. This paper presents fuzzy control applicable for active power filter for three-phase systems, which are comprised of … …Journal of Computer Science, Vol. 3, Issue 2 · 28 Feb 2007 · 7,111 accessesView PDFCite