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128 articles for “Communications”
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Research ArticleOpen accessEvery word in the titleLow Cost Test Bench to Assess Energy Efficiency of Communications Network EquipmentLuiz Henrique Biazotto, Alexandre de Assis Mota, Lia Toledo Moreira MotaCommunication network Quality of Service (QoS) degradation can lead to the consumption of additional energy to exchange information than that needed in normal conditions. If such behavior is known, network management can be more efficient and accurate, permitting to control more efficiently the energy consumption in telecommunication equipments. This study describes a test bench that can simultaneously measure the QoS … …Journal of Computer Science, Vol. 8, Issue 11 · 20 Sep 2012 · 6,678 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleGeneric Algorithm with Varying Block Sizes to Improve the Capacity of a Wireless Communications NetworksMahmoud AbdellaouiProblem statement: Channel capacity can be an essential parameter for wireless communication to improve the link quality. Until now, the channel capacity has been evaluated by utilizing Shannon capacity theory, but it presented many limitations and restrictions. The objectives of this study were to: (i) Expose, quantify, present and to give a clear and concise exposition of the mathematical principles … …Journal of Computer Science, Vol. 5, Issue 4 · 30 Apr 2009 · 6,899 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleA New Error Correction Intuitive Approach in Quantum Communications ProtocolsAris Skander, Merabtine Nadjim, Malek BenslamaQuantum Error Correction will be necessary for preserving coherent states against noise and other unwanted interactions in quantum computation and communication. We develop a general theory of quantum error correction based on encoding states into larger Hilbert spaces subject to known interactions. We obtain necessary and sufficient conditions for the perfect recovery of an encoded state after its degradation by … …American Journal of Applied Sciences, Vol. 4, Issue 8 · 31 Aug 2007 · 6,838 accessesView PDFCite
Research ArticleOpen accessIn the keywords3D Cinematography in the Cinema Art of Kazakhstan: Technological, Film Studying and Social AspectsVladimir Ilyich PopovThe article discusses the problems of formation and study of the new direction in the audiovisual culture and art-3D cinema. The film set of the first Kazakhstan 3D film, i.e., complicated for production feature 3D film named "Returning to the 'A"' directed by Yegor Mikhalkov-Konchalovskiy was the experimentation facility of the research. The purpose of the study is to conduct … …American Journal of Applied Sciences, Vol. 12, Issue 11 · 12 Nov 2015 · 6,780 accessesView PDFCite
Research ArticleOpen accessIn the keywordsThe Application of Multiple Arts to the Publicity Strategy for All-Out Defense EducationKuo-Wei Lin, Ming-Ren KuoProblem statement: Modern defense is so complex and professionally that we have to establish an effective publicity strategy for promoting the concept of all-out defense education and gather consensus of people on the defense and national security. Therefore, how to help all people to understand, affirm and further to support defense and thus consolidate national security have become the focus … …Journal of Social Sciences, Vol. 8, Issue 2 · 24 Mar 2012 · 8,372 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA New Security Model using Multilayer Approach for E-Health ServicesRossilawati Sulaiman, Dharmendra Sharma, Wanli Ma, Dat TranProblem statement: Delivering services online is important in e-health. Services that are delivered through online communications between engaging parties, often involve sensitive information transmitted over the Internet. However, while the Internet successfully facilitates these services, significant threats also come in parallel. Network attacks, information breaches and malicious software on a computer system are common threats to the Internet. These threats … …Journal of Computer Science, Vol. 7, Issue 11 · 29 Aug 2011 · 6,822 accessesView PDFCite
Research ArticleOpen accessIn the keywordsThe ‘Celalettin-Field Quantum Observation Tunnel’ a Quantum Communication Countermeasure Speculative StructureM. Celalettin, H. KingThe ‘Celalettin-Field Quantum Observation Tunnel’ (COT) is a speculative structure produced in an ensemble of Orbital Angular Momentum (OAM) polarized outer ‘s’ shell electrons, whereby an incoming photon, depolarizes ‘s’ shell electrons as it burrows through the ensemble, creating a tunnel. The depolarized particles when viewed as a single quantum system can theoretically be used to acquire information on the … …American Journal of Engineering and Applied Sciences, Vol. 12, Issue 1 · 6 Apr 2019 · 7,939 accessesView PDFCite
Research ArticleOpen accessIn the keywordsInterdisciplinary Format of the New Master's Program "Popular Science Journalism" at Saint Petersburg State University (Russia)Yuliya B. BalashovaThe article discusses the new Master's program "Popular science journalism", which started two yeas ago at Saint Petersburg State University, Russia. In 2016 the first students graduated from this program. Together with Moscow State University St. Petersburg University is in the top of Russian universities. The author of this article is the creator, developer and head of the designated program. … …American Journal of Applied Sciences, Vol. 13, Issue 12 · 23 Dec 2016 · 7,273 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA Novel Linear Array Antenna Based on UWB Slot AntennaFaten Ben Ghenaya, Ridha Ghayoula, Ali GharsallahThis paper introduces the novel Ultra-Wide Band (UWB) antennas for UWB applications. We used two different structures, the first is fed by micro-strip line and the second is a compact coplanar waveguide fed planar slot antenna. These designs are a small on planar antenna. The substrate used is FR4 that have the characteristics following: Permittivity εr = 4.4 Impulse Radio … …American Journal of Applied Sciences, Vol. 13, Issue 3 · 25 Mar 2016 · 7,431 accessesView PDFCite
Research ArticleOpen accessIn the keywordsOptical Code-Division Multiple-Access and Wavelength Division Multiplexing: Hybrid Scheme ReviewHesham A. Bakarman, P. Susthitha Menon, Isaac A.M. Ashour, Sahbudin ShaariProblem statement: Hybrid Optical Code-Division Multiple-Access (OCDMA) and Wavelength-Division Multiplexing (WDM) have flourished as successful schemes for expanding the transmission capacity as well as enhancing the security for OCDMA. However, a comprehensive review related to this hybrid system are lacking currently. Approach: The purpose of this paper is to review the literature on OCDMA-WDM overlay systems, including our hybrid approach … …Journal of Computer Science, Vol. 8, Issue 10 · 29 Aug 2012 · 7,859 accessesView PDFCite