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57 articles for “data acquisition”

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Research ArticleOpen accessPhrase in the titleAN IN-HOUSE COMPUTER-BASED DATA ACQUISITION AND CONTROL SYSTEM FOR ANAEROBIC FERMENTATION PROCESSESE. A. Echiegu, A. E. GhalyA computer-based Data Acquisition and Control System (DACS) capable of monitoring the temperature, pH and gas production as well as maintaining a pre-determined temperature profile and feeding regime in anaerobic reactors was developed and tested. The hardware for the DACS was a series-based system consisting of a host processor which drives three modules-a digital input mode (MODULE 255), an analog … …American Journal of Engineering and Applied Sciences, Vol. 7, Issue 3 · 17 Nov 2014 · 6,907 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleA NEW CLOUD BASED SUPERVISORY CONTROL AND DATA ACQUISITION IMPLEMENTATION TO ENHANCE THE LEVEL OF SECURITY USING TESTBEDA. Shahzad, S. Musa, A. Aborujilah, M. IrfanNow days cloud computing is an important and hot topic in arena of information technology and computer system. Several companies and educational institutes have been deployed cloud infrastructures to overcome their problems such as easy data access, software updates with minimal cost, large or unlimited storage, efficient cost factor, backup storage and disaster recovery and several other benefits compare with … …Journal of Computer Science, Vol. 10, Issue 4 · 21 Dec 2013 · 7,296 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleTHE SECURITY SURVEY AND ANAYLSIS ON SUPERVISORY CONTROL AND DATA ACQUISITION COMMUNICATIONA. Shahzad, S. Musa, A. Aborujilah, M. IrfanThe SCADA system connectivity with several open networks using internet facility brought SCADA platform more vulnerable from attacks/threads. Therefore, the detail security review has been conducted, to find the potential security issues which are residing and warming the SCADA communication and also existing potential security solutions that are used to protect the SCADA communication. However, Security deployments are the future … …Journal of Computer Science, Vol. 10, Issue 10 · 23 Jun 2014 · 7,643 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleLog data Approach to Acquisition of Optimal Bayesian Learner ModelChoo-Yee Ting, Somnuk Phon-AmnuaisukLog data provide valuable insight into observable behavioural patterns, which could be inferred to study a learner’s cognitive processes, levels of motivation and levels of knowledge acquisition. To date, most of the research work has been devoted to study the different methods to analyze and interpret log data. Little attention, however, has been given to use log data as a … …American Journal of Applied Sciences, Vol. 6, Issue 5 · 31 May 2009 · 7,074 accessesView PDFCite
Research ArticleOpen accessIn the keywordsTHE SCADA REVIEW: SYSTEM COMPONENTS, ARCHITECTURE, PROTOCOLS AND FUTURE SECURITY TRENDSA. Shahzad, S. Musa, A. Aborujilah, M. IrfanThe Supervisory Control and Data Acquisition (SCADA) system has prominent place and play important roles within real time industrial communication included &#34electric stations, oil stations and water purification plants&#34. In this study; the SCADA System main components, architecture and important protocols, which have been used in SCADA message transmission are reviewed. After review, the current research changes the direction (Section: … …American Journal of Applied Sciences, Vol. 11, Issue 8 · 27 Jun 2014 · 9,081 accessesView PDFCite
Research ArticleOpen accessIn the keywordsDESIGN OF FUZZY LOGIC CONTROLLER FOR ONLINE SPEED REGULATION OF DC MOTOR USING PWM TECHNIQUE BASED ON LABORATORY VIRTUAL INSTRUMENT ENGINEERING WORKBENCHPrema Kannan, Senthil Kumar Natarajan, Subhransu Sekar DashThis study details online speed regulation of DC motor using PWM technique based on LabVIEW. A fuzzy logic controller is designed to change the pulse width of switching signal applied to the converter and thereby the voltage fed to the armature of the separately excited DC motor to regulate the speed. The proposed system is connected to the server computer … …Journal of Computer Science, Vol. 9, Issue 8 · 4 Jul 2013 · 6,715 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEffect of Data Processing on Data QualityA. R. SamihProblem statement: Great attention had been paid on spatial data quality by the scientific community. This was due to the negative impact that a poor spatial data quality had on the competitiveness of an organization. On other hand, we can never obtain good quality data from a poor quality data. In this study, we demonstrate the effects of the different … …Journal of Computer Science, Vol. 4, Issue 12 · 31 Dec 2008 · 7,269 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA New Compressing Ultrasonic Data Algorithm Based on WaveletsMounir Hergli, Jamel Baili, Faouzi Bouslama, Kamel BesbesIn this paper, we propose a novel and effective algorithm for compressing large volumes of data recorded in underwater applications, using a laboratory designed experimental setup. This data represents samples of ultrasonic signals acquired at different geometric positions of a water tank. The proposed algorithm was based on Wavelets and consists of two processing phases including a prefiltering stage using … …American Journal of Applied Sciences, Vol. 2, Issue 12 · 31 Dec 2005 · 7,000 accessesView PDFCite
Research ArticleOpen accessIn the keywordsIdentification of Electrooculography Signals Frequency Energy Distribution Using Wavelet AlgorithmW.M. Bukhari, W. Daud, Rubita Sudirman, Camallil OmarProblem statement: The time frequency analysis of non-stationary signals has been the considerable research effort in recent years. Wavelet transform is one of the favored tool for the analyzing the biomedical signals. Approach: We describe the identification of Electro-Oculograph (EOG) signals of eye movement potentials by using wavelet algorithm which gives a lot of information than FFT. The capability of … …Journal of Computer Science, Vol. 7, Issue 11 · 18 Aug 2011 · 8,551 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA REVIEW: INDUSTRIAL CONTROL SYSTEM (ICS) AND THEIR SECUITY ISSUESA. Shahzad, S. Musa, A. Aborujilah, M. IrfanIndustrial Control System (ICS) has been designed for critical infrastructure sectors and 90% of these systems are property/owaned and operated by private organizations. Industrial Control System (ICS) were designed to fulfill the basic requirements included system performance and reliability and other basic needs, related with real time transmission, without interlinking with networks (public/private) or/and internet connectivity. In this research, detail … …American Journal of Applied Sciences, Vol. 11, Issue 8 · 24 Jun 2014 · 6,825 accessesView PDFCite