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134 articles for “high gain”
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Research ArticleOpen accessIn the abstractMan Invades Nature: Tracing the Dynamics and Trends of Anthropogenic Stressors Within a Coastal Wetland EnvironmentEmmanuel Yeboah Okyere, Kofi Adu-Boahen, Bismark MensahCoastal areas contain some of the most valuable resources on earth that are constantly under threat due to human development. Notable among these resources are wetlands, a delicate but beneficial asset to coastal dwellers. This study studied the growth of Winneba City into the Muni Lagoon catchment as well as its associated effects on the Ramsar Site. The study used … …Journal of Social Sciences, Vol. 19, Issue 1 · 16 Jun 2023 · 6,055 accessesView PDFCite
InvestigationOpen accessIn the abstractDesign and Realization of Pre-Amplifier and Filters for on-Board Radar SystemN. Dinesh Kumar, R. Divya Ravali, Panchavati R. SrirekhaToday's warfare situation incorporates a considerable measure of innovative weaponry and every nation is attempting to outmaneuver the other utilizing high engineering, henceforth it is of most extreme criticalness to be at the front line of the bleeding edge innovation and having the best weapons conceivable to secure the country. One of the innovations which give the one having it … …American Journal of Engineering and Applied Sciences, Vol. 8, Issue 4 · 9 Nov 2015 · 7,807 accessesView PDFCite
Research ArticleOpen accessIn the abstractA COMPARATIVE STUDY OF COMBINED FEATURE SELECTION METHODS FOR ARABIC TEXT CLASSIFICATIONAisha Adel, Nazlia Omar, Adel Al-ShabiText classification is a very important task due to the huge amount of electronic documents. One of the problems of text classification is the high dimensionality of feature space. Researchers proposed many algorithms to select related features from text. These algorithms have been studied extensively for English text, while studies for Arabic are still limited. This study introduces an investigation … …Journal of Computer Science, Vol. 10, Issue 11 · 20 Dec 2014 · 8,439 accessesView PDFCite
Research ArticleOpen accessIn the abstractMOLECULAR CHARACTERIZATION ON THE BASIS OF HA, NA AND M GENE REVEALED CHANGES IN CRITICAL AMINO ACID POSITIONS OF INFLUENZA A (H3N2) VIRUS CIRCULATING IN INDIA DURING 2011-2013Sachin Kumar, Shashi Khare, Bano Saidullah et al.Influenza a (H1N1) virus is responsible for acute respiratory infection in human, which occasionally causes epidemic and rarely a pandemic. Full length DNA sequencing of HA, NA and M gene of H3N2 virus from year 2011-2013 was performed for determination of the circulating strains in India along with monitoring status of various mutations associated with drug resistance and virulence. Genetic … …American Journal of Infectious Diseases, Vol. 10, Issue 3 · 18 Oct 2014 · 6,842 accessesView PDFCite
Research ArticleOpen accessIn the abstractClassification Model for Hotspot Occurrences Using Spatial Decision Tree AlgorithmImas Sukaesih Sitanggang, Razali Yaakob, Norwati Mustapha, A. N. AinuddinDeveloping a predictive model for forest fires occurrence is an important activity in a fire prevention program. The model describes characteristics of areas where fires occur based on past fires data. It is essential as an early warning system for preventing forest fires, thus major damages because of fires can be avoided. This study describes the application of data mining … …Journal of Computer Science, Vol. 9, Issue 2 · 11 Apr 2013 · 7,229 accessesView PDFCite
Research ArticleOpen accessIn the abstractDesign of Hybrid Coupler Connected Square Array Patch Antenna for Wi-Fi ApplicationsA. Sahaya Anselin Nisha, T. JayanthyMicrostrip patch antennas being popular because of light weight, low volume, thin profile configuration which can be made conformal. Wireless communication systems applications circular polarization antenna is placing vital role. In this study we introduce a new technique to produce circular polarization. Hybrid coupler is directly connected to microstrip antenna to get circular polarization. Also gain is further increased by … …Journal of Computer Science, Vol. 8, Issue 11 · 19 Sep 2012 · 6,642 accessesView PDFCite
Research ArticleOpen accessIn the abstractMulti-Threshold based Scheduling for Multi-User Multiple-Input Multiple-Output SystemsK. Chanthirasekaran, M. A. BhagyaveniProblem statement: Multi-User Multi-Input Multi-Output (MU-MIMO) system had eventually used in 4th generation wireless networks either to achieved diversity gain or multiplexing gain. Many recent scheduling addresses the threshold based resource allocation where in resource were not utilized properly. Approach: In this study a new Multi Threshold Based Channel Aware Scheduling (MTCAS) was proposed for performance improvement and proper resource … …Journal of Computer Science, Vol. 8, Issue 7 · 21 Jun 2012 · 6,948 accessesView PDFCite
Research ArticleOpen accessIn the abstractA 2-12 GHz Low Noise Amplifier Design for Ultra Wide Band ApplicationsV. Vaithianathan, J. Raja, R. SrinivasanProblem statement: The Low Noise Amplifier (LNA) is a core block of an Ultra Wide Band (UWB) receiver since it amplifies a very weak signal received at the antenna to acceptable levels while introducing less self-generated noise and distortions. The LNA design poses a unique challenge as it requires simultaneous optimization of various performance parameters like power gain, input matching, … …American Journal of Applied Sciences, Vol. 9, Issue 8 · 9 Jun 2012 · 7,400 accessesView PDFCite
Research ArticleOpen accessIn the abstractTrans Pacific Strategic Economic Partnership With Japan, South Korea and China Integrate: General Equilibrium ApproachTodsadee Areerat, Hiroshi Kameyama, Shoichi Ito, Koh-en YamauchiProblem statement: The Trans-Pacific Strategic Economic Partnership Agreement (TPP) is a high standard and broad based Free Trade Agreement that aims to integrate the economies of the Asia-Pacific region. Recently, the US is pressing Japan to join the group. Japan is considering joining the TPP because of the dual considerations of its own economy and the political situation in East … …American Journal of Economics and Business Administration, Vol. 4, Issue 1 · 17 Jan 2012 · 9,886 accessesView PDFCite
Research ArticleOpen accessIn the abstractPerformance of MMSE Receiver based Multi Input Multi Output-Interleave Division Multiple-Access System with Multi-user Detection over Frequency Selective Wireless Communication ChannelKuttathatti Srinivasan Vishvaksenan, R. SeshasayananProblem statement: This study presents the performance analysis of turbo assisted Interleave Division Multiple-Access (IDMA) system with Multi Input Multi Output (MIMO) support for multi user scenario over correlated frequency selective and uncorrelated frequency selective channel. Approach: The key principle of IDMA is that interleaver unique which distinguishes the users in contrast to spreading sequence in Code Division Multiple Access … …Journal of Computer Science, Vol. 7, Issue 7 · 30 Jun 2011 · 6,837 accessesView PDFCite