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Vol. 2, Issue 5, PP. 58-65, May 2015
The aim of this paper is to demonstrate a software development process for estimation of drainage parameters and its concrete application in practice. It is necessary to use knowledge from the field of programming and mathematics to create the software, which can find its application in various conditions of earthworks as well as the landfills, earthen embankments, etc. With this paper is integrated a design process of the earthen embankment with drainage canals, process of program development for calculation of the parameters and dimensions of drainage canals and display the results of calculations. This process shows how it is possible to include discipline of the engineering design, information technology and the software engineering. Advantages of this approach are multiple efficiencies in process of the embankments and waste dump design and estimation of drainage parameters. This approach to problems in mining, civil engineering and geology, greatly facilitates and accelerates the process of decision making as well as offering multi-variant solutions.
Adila Nuric: University of Tuzla, Bosnia and Herzegovina, adila.nuric@untz.ba, Univerzitetska 2 75000 Tuzla, +38735320573
Samir Nuric: University of Tuzla, Bosnia and Herzegovina, samir.nuric@untz.ba, Univerzitetska 2 75000 Tuzla, +38735320573
Lazar Kricak: University of Belgrade, Serbia, kricak@rgf.bg.ac.rs, Djusina 7, 11000 Belgrade
Milanka Negovanovic: University of Belgrade, Serbia, milanka.negovanovic@rgf.bg.ac.rs, Djusina 7, 11000 Belgrade
P.D. De Lemos, "Surface mining technology: Managing the paradigm shif," Minig Engineering, Vol. 65 No. 12, 2013, pp. 36-40.
A. Goodbody, "A deeper design," Mining Magazine, March 2012, pp. 25-35.
P. Moore, "Better planning. International Mining," Team Publishing Ltd., Herts, UK, July 2011, pp. 54-62 .
J. Jessop, "Bridging functional silos to improve business performance," International Mining, Team Publishing Ltd., Herts, UK, November 2010, pp. 44-46.
S. Asghar and M. Umar, "Requirement engineering challenges in development of software applications and selection of customer-off-the-shelf (COTS) components," International Journal of Software Engineering, Vol. 1, Issue 2, 2010, pp. 32-50.
Moore, P.: "E-mine excellence," International Mining, Team Publishing Ltd., Herts, UK, 42-61 (Jan. 2013)
M. Avdic, and A. Nuric, Programiranje i primjena u inzenjerstvu, Univerzitet u Tuzli, Tuzla, Bosnia and Herzegovina, 2008
B. Wilkinson, "Devising the best plan," Mining Magazine, March 2012, pp- 37-39.
S. Walker, "Pumps and pipelines keep mines on the move," E&JM, April 2013, pp. 68-79.
Review: "Planning for the future," Mining Magazine, Vol. 201, No. �, 2010, pp. 22-28.
P. Moore, "Brave new world," International Mining, July 2012, pp. 34-47 .
C. Lovejoy, "A gem of a company," Mining Magazine, March 2012, pp. 20-24.
Review: "Functionality to the fore," Mining Magazine, Vol. 198, No. 2, February 2008, pp. 53-59.
R.A. Carter, "Multiplication factor," E&MJ, April 2013, pp. 56-67.
R.A. Carter, "Pump technology produces new models, new design," E&MJ, August 2013, pp. 38-42.
K. Lang, and B.Buhl, "Use of high-efficiency electrical submersible pumps for mine dewatering," Mining Engineering, Vol. 65, No. 9, September 2013, pp. 64-70.
A. Aryafar, F.D.Ardejani, R. Singh and B.J. Shokri, online available: http://3.academia-asset.com/ima
U. Hohna, V. Pavlovic and U. Schmidt, "Future lignite mines of Serbia," World of mining, Vol. 62, No. 1, 2010, pp. 28-37.
S. Walker, "Tools to assist in planning and design," E&MJ, January 2013, pp. 34-39.
M. Struzina and J. Benndorf, "Efficient planning and modelling for modern dewatering concepts in unconsolidated rock under geological uncertainty," World of Mining.,Vol. 2, 2011, pp. 66-75.
H. El Idrysy, R. Bowell, M. Dey and W. Harding,:"Making the most of mine water," Mining Magazine, October 2011, pp. 46-48.
K. Boyce, "Selecting a reliable dewatering pump for mining applications," E&MJ, August 2013, pp. 36-37.
R.A.Carter, "Designin mines with data in mind," E&MJ, January 2014, pp. 42-44.
R.A. Carter, "Exploring the dimensions of digital solutions in mine mapping," Coal Age, February 2013, pp. 34-37.
S.Sedgwick, "Getting the balance right," Mining Magazine, October 2011, pp. 57-58.
T. Woldai and T. Taranik, "Environmental impact assessment of mining related dewatering activities using integrated Insar, Optical remote sensing and pumping data," The International Archives of The Photogrammetry, Remote Sensing and Spatial Information Science,.Vol.37, part B7, Beijing, 2008, pp. 191-197.
A. Nuric, S. Nuric, E. Hercegovac, S. Lapandic and M. Delic, "Methodologies of calculation mass for construction plateau on the site Streliste Velika Ribnica - Banovici," Proceedings 42th IOC on mining and metallurgy, Technical faculty at Bor University of Belgrade, Copper Institute Bor, Kladovo, Serbia, 2010, pp. 364-367.
W. Hustrulid and M.Kuchta, Open pit mine, planning & design, A.A.Balkema, Rotterdam, Netherland, 1995
S. Nuric, A. Nuric, T. Knezicek, M. Kukic and M. Klopic, "Define optimal technical-technologic parameters drainage of the pit mine," Proceedings 38th IOC on Mining and Metallurgy, Donji Milanovac, Technical faculty Bor University of Belgrade and Copper Institute Bor, 2006, pp. 112-124.
T.Knezicek, Racunarski podrzano projektovanje povrsinskih kopova, JU Univerzitet u Tuzli, Tuzla, Bosnia and Herzegovina,2004
A. Nuric, S. Nuric and E. Haracic, "Visualization of outer waste dump Zapad at pit mine Dubrave by using computer technique," Zbornik radova RGGF-a Tuzla, No. XXXIII, Tuzla, 2007, pp. 183-187.
S. Nuric, Kamionski transport u povrsinskoj eksploataciji, Microtrik, Banovici, Bosina and Herzegovina, 2009
D.M. Potts, and L. Zdravkovic, Finite element analysis in geotechnical engineering, Thomas Telford Publishing, London, UK, 2001
© The authors retain all copyrights
This article is open access and distributed under the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Authors disclose no conflict of interest or having no competing interest.
Vol. 2, Issue 12, PP. 104-108, Dec. 2015
With the rapid increase in energy demand all over the world and great advancements in technology, utilities are more interested in Distributed Generation (DG). Among different sources, synchronous and induction machines are widely used for DG applications. In this paper, a detailed performance evaluation is carried out for induction and synchronous machines in Distributed Generation mode. A typical radial distribution feeder is simulated in Electrical Transient Analyzer Program (ETAP) and the impacts of aforementioned sources are analyzed on DG. On the basis of comparison between sources, some basic technical factors such as voltage profile and electrical power losses are considered. It was found that the most desirable source depends on the characteristics of the distribution network, i.e. the core technical factors that might put constraints on the penetration level of DG.
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© The authors retain all copyrights
This article is open access and distributed under the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Authors disclose no conflict of interest or having no competing interest.
Vol. 2, Issue 12, PP. 99-103, Dec. 2015
Distributed Generation is gaining popularity with the recent advancements in the renewable energy sources. DGs are used as a source of energy as well as performance enhancers by utilities. Subject to the weather of a certain location different DG sources are used in which Wind Turbines, Small Hydro Plants, Photovoltaic and Fuel Cells are commonly used. In this research work, a detailed comparative analysis is made among Wind Turbine, Photovoltaic and Synchronous machine to suggest the most suitable source. The said comparison is made on the technical factors such as voltage and electrical power losses and on the basis of this comparison a suitable DG source is suggested. A radial distribution feeder is simulated in Electrical Transient Analyzer Program (ETAP) to study the effect of these sources on the test distribution network
[1] W. EL-Khattam, and M. M. A. Salama, “Impact of Distributed Generation on Voltage Profile in Deregulated Distribution System,” Proceedings of the Power Systems 2002 Conference, Impact of Distributed Generation, Clemson, SC, USA, pp. 13-14, March 2002
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[7] M. Wolter and L. Hofmann, ”General estimation of the impact of additional DG sources on distribution grids”, accepted for presentation at IEEE PES General Meeting 2011, Detroit, United States 2011.
[8] I. Leiße, “Efficient Integration of Distributed Generation in Electricity Distribution Networks”, PhD. dissertation, Department of Measurement Technology and Industrial Electrical Engineering, Lund University, 2013, Pg 174.
© The authors retain all copyrights
This article is open access and distributed under the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Authors disclose no conflict of interest or having no competing interest.
Vol. 2, Issue 12, PP. 93-98, Dec. 2015
A microstrip patch antenna over which a 6 layer of metamaterial superstrate with the negative refractive index is proposed for the enhancement of gain over the conventional patch antenna The negative refractive index (NRI) property of superstrate covers the frequency range from 774 MHz to 974 MHz. The superstrate is placed 55 mm above the microstrip patch antenna. The function of the properties of negative refractive index is to gather the EM wave radiated from the antenna and the free space toward the normal direction of the antenna. An electromagnetic simulation software CST is used to study the characteristics of this metamaterial and the designe for the proposed antenna. The simulated result indicates that the gain of the proposed antenna is increased by 87.6% (2.32dB), in the desired frequency band 935 MHz to 960 MHz is also increased. Therefore, the gain of the antenna is effectively enhanced based on the negative refractive index metamaterial.
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© The authors retain all copyrights
This article is open access and distributed under the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Authors disclose no conflict of interest or having no competing interest.
Vol. 2, Issue 9, PP. 84-92, Sept. 2015
Various tools and methods are developed to secure our information systems against hackers.This work proposes a new security architecture of IS, using a combination of Honeyd and their plugin honeycomb with intrusion detection system based on mobile agent and data mining algorithm Clust-density. theprinciplal goal is to detect intrusions flowing through the network. also, we show that by using this architecture, we obtained a higher level of security and we can study the behavior of the pirates and their techniques to evaluate the system in which it is implemented by simulating a vulnerable machine and /or network.
Affilation : Systems Engineering Laboratory, Data Analysis and Security Team National School of Applied Sciences, University Ibn Tofail, Kénitra, Morocco
Emails:
chaimaesaadi900@gmail.com *
mejhed90@gmail.com **
[1] L. Zpitzner, Honeypots: Tracking Hackers, Addison Wasley Professional, ISBN-10: 0321108957, (septembre 2002).
[2] Ashish Girdhar et Al : Comparative Study of Different Honeypots System, Volume 2, Issue 10 (August 2012), PP. 23-27.
[3] S. S. Muhammad, S. H. Choong, A Novel Architecture for Real-time Automated Intrusion Detection Fingerprinting using Honeypot, 27th KIPS Spring Conference, Korea, pp.1093-1095, (mai 2007).
[4] Bill Cheswick, “An Evening with Berferd: In Which a Cracker is Lured, Endured, and Studied.” 1991.
[5] Chaimae Saadi, Habiba Chaoui and Hassan Erguig Security Analysis Using IDs Based on Mobile Agents and Data Mining Algorithms / (IJCSIT) International Journal of Computer Science and Information Technologies, Vol. 6 (1), 597- 602, 2015.
[6] Chaimae Saadi, Habiba Chaoui, Hassan Erguig, Contribution to Abnormality Detection by Use of Clust-Density Algorithm DOI: http://dx.doi.org/10.15866/irecos.v10i4.5699/2015
[7] Chaimae saadi and Habiba Chaoui, IDS based interaction on mobile agents and Clust-density algorithm IDS-AM-Clust curent accepted .
[8] Cohen, Fred. “Deception ToolKit”. circa 2001 URL: http://www.all.net/dtk/dtk.html , March 13, 2003.
[9] J. Tian, J. Wang, X. Yang, R. Li, A Study of Intrusion Signature Based on Honeypot, Sixth International Conference on Parallel and Distributed Computing Applications and Technologies (PDCAT05), pages 125 – 129, (2008).
[10] C, Chi, M. Li, D. Liu, A Method to Obtain Signatures from Honeypot Data, Lecture Notes in Computer Science, Volume 3222/2004, 435-442, DOI: 10.1007/978-3-540- 30141-7_61, (2004).
[11] Ram Kumar Singh : Intrusion Detection System Using Advanced Honeypots, (IJCSIS) International Journal of Computer Science and Information Security, Vol. 2, No. 1, 2009.
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[13] C. Kreibich, J. Crowcroft, Honeycomb – Creating Intrusion Detection Signatures Using Honeypots, ACM SIGCOMM Computer Communication Review, 34, 51 – 56, (2004).
[14] C. Kreibich and J. Crowcroft. Honeycomb — Creating Intrusion Detection Signatures Using Honeypots 2nd Workshop on Hot Topics in Networks (HotNets-II), 2003, Boston, USA.
[15] Hatem Bouzayani : Modèle quantitatif pour la détection d’intrusion. Une architecture collaborative IDS-HONEYPOT (Juin 2012).
© The authors retain all copyrights
This article is open access and distributed under the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Authors disclose no conflict of interest or having no competing interest.
Vol. 2, Issue 8, PP. 79-83, August 2015
Clustering is the power full technique for segment relevant data into different levels. This study has proposed K-means clustering method for cluster web search results for search engines. For represent documents we used vector space model and use cosine similarity method for measure similarity between user query and the search results. As an improvement of K-means clustering we used distortion curve method for identify optimal initial number of clusters.
1School of Computer Science and Technology, Wuhan University of Technology, Wuhan, China, hasitha87@gmail.com.
2School of Economics, Wuhan University of Technology, Wuhan, China kapilar@sab.ac.lk.
3School of Management, Wuhan University of Technology, Wuhan, China skillangarathne@gmail.com.
4Faculty of Applied Sciences, Sabaragamuwa University of Sri Lanka, Balangoda, Sri Lanka, kapilar@sab.ac.lk.
[1] GG. He, “Authoritative K-Means for Clustering of Web Search Results,” no. June, 2010.
[2] R.M. Kapila Tharanga Rathnayaka, Wei Jianguo and D.M.K.N Seneviratne, “Geometric Brownian Motion with Ito lemma Approach to evaluate market fluctuations: A case study on Colombo Stock Exchange”, 2014 International Conference on Behavioral, Economic, and Socio-Cultural Computing (BESC’2014- IEEE), Shanghai, China, 2014.
[3] M. Alam and K. Sadaf, “Labeling of Web Search Result Clusters using Heuristic Search and Frequent Itemset,” Procedia - Procedia Comput. Sci., vol. 46, no. Icict 2014, pp. 216–222, 2015.
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[5] Rathnayaka, R.M. K.T. and Seneviratne, D.M.K.N, “G M (1, 1) Analysis and Forecasting for Efficient Energy Production and Consumption”, International Journal of Business, Economics and Managment Works, Kambohwell Publisher Enterprises, 1 (1), 6-11, 2014.
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[7] Jayathileke, P. M. B., and Rathnayaka, R.M. K. T. “Testing the Link between Inflation and Economic Growth: Evidence from Asia”, Modern Economy,4, 87.
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[9] R.M.K.T Rathnayaka and Zhong-jun Wang, “Prevalence and effect of personal hygiene on transmission of helminthes infection among primary school children living in slums”, International Journal of Multidisciplinary Research Journal; ZENITH, ISSN: 2231-5780, Vol 02, April 2012.
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[11] R.M Kapila Tharanga Rathnayaka, D.M. Kumudu Nadeeshani Seneviratne and Zhong- jun Wang, “An Investigation of Statistical Behaviors of the Stock Market Fluctuations in the Colombo Stock Market: ARMA & PCA Approach”, Journal of Scientific Research & Reports 3(1): 130-138, 2014; Article no. JSRR, www.sciencedomain.org
[12] Labroche, N. Monmarche’, G. Venturini, AntClust: ant clustering and web usage mining, Genet. Evolut. Comput. Conf. (2003) 25–36.
[13] R.M. Kapila Tharanga Rathnayaka and Zhong-jun Wang, “Enhanced Greedy Optimization Algorithm with Data Warehousing for Automated Nurse Scheduling System”, E-Health Telecommunication Systems and Networks, 2013, http://www.SciRP.org/journal/etsn.
[14] X. Cui, T.E. Potok, P. Palathingal, Document Clustering using Particle Swarm Optimization, IEEE Swarm Intell. Symp. (2005) 185–191.N.
[15] R.M. Kapila Tharanga Rathnayaka and Zhong-jun Wang, “Influence of Family Status on the Dietary Patterns and Nutritional Levels of Children”, Food and Nutrition Sciences, 2013, http://www.SciRP.org/journal/fns .
[16] J. Mei and L. Chen, “Expert Systems with Applications Proximity-based k -partitions clustering with ranking for document categorization and analysis,” Expert Syst. Appl., vol. 41, no. 16, pp. 7095–7105, 2014.
[17] R.M Kapila Tharanga Rathnayaka, “Cross-Cultural Dimensions of Business Communication: Evidence from Sri Lanka”, International Review of Management and Business Research, 3(3), 1579-1587, 2014; ISSN: 2306-9007, 2014, www.irmbrjournal.com
[18] E. Fersini, E. Messina, and F. Archetti, “A probabilistic relational approach for web document clustering,” Inf. Process. Manag., vol. 46, no. 2, pp. 117–130, 2010.
[19] M. Carullo, E. Binaghi, and I. Gallo, “An online document clustering technique for short web contents,” Pattern Recognit. Lett., vol. 30, no. 10, pp. 870–876, 2009.
[20] Rathnayaka, R.M. K.T. and Seneviratne, D.M.K.N, “A Comparative Analysis of Stock Price Behaviors on the Colombo and Nigeria Stock Exchanges”, International Journal of Business, Economics and Managment Works, Kambohwell Publisher Enterprises, 2 (2), 12-16, 2014.
[21] D. Ren, D. Zheng, G. Huang, S. Zhang, and Z. Wei, “Parallel Set Determination and K-means Clustering for Data Mining on Telecommunication Networks,” 2013.
[22] Rathnayaka, R.M. K.T., Seneviratne, D.M.K.N and Jianguo,W., “Grey system based novel approach for stock market forecasting”, Grey Systems: Theory and Application, Emerald Group Publishing Limited, 5 (2), 2015.
[23] Seneviratne, D.M.K.N and Long, w., “Analysis of Government Responses for the Photovoltaic Industry in China”, Journal of Economics and Sustainable Development, 4 (13), 2013.
[24] Seneviratne, D.M.K.N and Jianguo, w., “Analying the causal relationship between stock prices and selected microeconomic variables: evidence from Sri Lanka”, ZENITH international journal of Business economics & Management research, 3 (9), 2013.
© The authors retain all copyrights
This article is open access and distributed under the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Authors disclose no conflict of interest or having no competing interest.
Vol. 2, Issue 7, PP. 69-78, July 2015
Farm machinery planning, design and operation are complicated undertaking due to time and cost constraint and due to prevalence of complicated interacting and overlapping field operations involving capacity constraints and cooperating units. The classical DSS models that applied in the past to machinery planning and policy analysis as well as to performance assessment and simulation of machinery demand, and supplies are criticized by limitations in programming and the difficulty in manipulation and storing the bulky data usually encountered in machinery records. In contrast by application of a web-based decision support system (DWDSS) the user can enjoy the facility to store the data in the server. (DWDSS), is a user-friendly interactive program which permits the user to interact by entering the required input records. The model estimates machinery performance of various farm machines. It consists of one model, which helps the farm manager to take the correct optimum selection of his agricultural machinery. DWDSS predicts field efficiency, field capacity, draft power required to operate machines and PTO power. The DWDSS was successfully validated statistically in comparison to the published data from the ASAE (2009). The comparison indicated that there were no significant differences (probability = 0.05) between them in the calculations that were executed. The DWDSS model was applied to real case conditions in Wad Salma and Rahad irrigated schemes in the central clay plains under similar treatments. The DWDSS results of field efficiency, theoretical field capacity, working rate and draw bar power was found fairly identical to the actual Wad Salma and Rahad data. The results indicated that, generally, the actual field efficiencies of the studied machines were found to be lower by 7% than ASAE published data and t-test comparison between Wad Salma and Rahad schemes in working rate of the three tillage implement, indicated no significant difference between the two means at probability level =0.05. In general, the results indicated that the DWDSS could be applied to any real-life case successfully and with confidence. This is reached by helping the decision maker in planning and operation of a farm fleet by deciding size of farm power.
Mohamed Y.M .Hassana: College of Engineering, Nanjing Agricultural University, Nanjing 210031, China) Key Laboratory of Intelligent Agricultural Equipment of Jiangsu Province, Nanjing 210031, China, Email: mohamedyosuif@hotmail.com, Mobile :008613912926529
Zhu Sihong: College of Engineering, Nanjing Agricultural University, Nanjing 210031, China) Key Laboratory of Intelligent Agricultural Equipment of Jiangsu Province, Nanjing 210031, China.
Ding Weimin: College of Engineering, Nanjing Agricultural University, Nanjing 210031, China) Key Laboratory of Intelligent Agricultural Equipment of Jiangsu Province, Nanjing 210031, China.
Ding Qishuo: College of Engineering, Nanjing Agricultural University, Nanjing 210031, China) Key Laboratory of Intelligent Agricultural Equipment of Jiangsu Province, Nanjing 210031, China.
B.Eisa Adam: College of Engineering, Nanjing Agricultural University, Nanjing 210031, China) Key Laboratory of Intelligent Agricultural Equipment of Jiangsu Province, Nanjing 210031, China.
Cedric .S.Okinda: College of Engineering, Nanjing Agricultural University, Nanjing 210031, China) Key Laboratory of Intelligent Agricultural Equipment of Jiangsu Province, Nanjing 210031, China.
Gamareldawla .H.D.Agbnad: College of Water Conservancy and Hydropower,Hohai University, Nanjing 210098, China)Key Laboratory of Efficient Irrigation-Drainage and Agricultural Soil-Water Environment.
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© The authors retain all copyrights
This article is open access and distributed under the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Authors disclose no conflict of interest or having no competing interest.
Vol. 2, Issue 5, PP. 66-68, May 2015
In UHV and EHV, distributive capacitive current to current differential protection has serious problem. Nowadays, to deal with the problem of distributed capacitive current a stimulating modern technology is being used in current differential protection with high operating threshold. Many schemes have been used into current differential protection for capacitive current compensation, which was based on shunt reactor, phasor compensation algorithm, Bergeron method. Those techniques were also reducing operating speed and sensitivity of current differential protection. To solve the problem of distributed capacitive current of the line, novel principle of current differential protection is described in this article. Current calculated from set point to both the ends give rise to a differential criterion. Differential protection is launched under the phenomenon of low sampling frequency to improve the expediency of the criterion. The calculation of set point distributed current is achieved at low sampling frequency by adding an interpolation point at each sampling interval. The point is set in the middle of the line and the calculation for magnitude of the current is done with half data window absolute value integrals, for improved the operating speed of the current differential protection.
M. Arshad Shehzad Hassan, Xi’an Jiaotong University, Xi’an, China, Email: arxhad@yahoo.com
Guobing Song, Xi’an Jiaotong University, Xi’an, China, Email: song.gb@mail.xjtu.edu.cn
Chenqing Wang, Xi’an Jiaotong University, Xi’an, China, Email: wcqmorning@gmail.com
Xingfu Jin, Xi’an Jiaotong University, Xi’an, China, Email: xingfujin@stu.xjtu.edu.cn
Chengcheng Yang, Xi’an Jiaotong University, Xi’an, China, Email: chengchengyang10@126.com
Sohaib Tahir, Xi’an Jiaotong University, Xi’an, China, Email: sohaibchauhdary@gmail.com
[1] McMurdo J N, Weller G C. Applications of digital differential protection[C]//Developments in Power System Protection, 1993., Fifth International Conference on. IET, 1993: 115-118.
[2] Ito H, Shuto I, Ayakawa H, et al. Development of an improved multifunction high speed operating current differential relay for transmission line protection[C]//Developments in Power System Protection, 2001, Seventh International Conference on (IEE). IET, 2001: 511-514.
[3] Bi T S, Yu Y L, Huang S F, et al. An accurate compensation method of distributed capacitance current in differential protection of UHV transmission line[C]//Power Engineering Society General Meeting, 2005. IEEE. IEEE, 2005: 770-774.
[4] Yan L I, De_shu C, Zhang Z, et al. The emulation analysis for the influence of capacitance current of UHV transmission line on differential current protection and compensating countermeasure [J]. Relay, 2001, 29(6): 6-9.
[5] Miao S, Liu P, Lin X. An adaptive operating characteristic to improve the operation stability of percentage differential protection[J]. Power Delivery, IEEE Transactions on, 2010, 25(3): 1410-1417.
[6] Xinzhou D, Bin S, Zhiqian B, et al. Study of special problems on protective relaying of UHV transmission line[J]. Automation of Electric Power Systems, 2004, 28(22): 19-22.
[7] Yekai W, Dongxia Z. The Influence of Capacitance Current to differential Protection and Its Compensation Scheme [J]. Relay, 1997, 25(4): 4-8.
[8] Wen M H, Chen D S, Yin X G. Study of current phasor differential protection for long UHV transmission line[J]. Automation of Electric Power Systems, 2000, 24(20): 37-40.
[9] Jiale, Suonan, Zhang Yining, Qi Jun, and Jiao Zaibin. "Current Differential Protection Based on Time-Domain Algorithm of Capacitive Current Compensating." JOURNAL-XIAN JIAOTONG UNIVERSITY 39, no. 12 (2005): 1370.
[10] Jiali H, Zheng G. Novel principle of pilot differential relay protection of transmission lines[C]//The 4th International Conference on Power Transmission & Distribution Technology. 2003: 576-581.
[11] Song G, Suonan J, Xu Q, et al. Parallel transmission lines fault location algorithm based on differential component net[J]. Power Delivery, IEEE Transactions on, 2005, 20(4): 2396-2406.
[12] Jiale S, Yining Z, Jun Q, et al. Study of current differential protection using time-domain capacitive current compensating algorithm on-model[J]. Proc. CSEE, 2006, 26(5): 12-18.
[13] Suonan J, Deng X, Liu K. Transmission line pilot protection principle based on integrated impedance [J]. Generation, Transmission & Distribution, IET, 2011, 5(10): 1003-1010.
[14] Yang J C, Yin X G, Chen D S, et al. The study of sampled value differential protection[C]//Transmission and Distribution Conference and Exposition, 2003 IEEE PES. IEEE, 2003, 1: 256-261.
[15] YANG, J. C., YIN, X. G., CHEN, D. S., ZHANG, Z., & HU, Y. F. (2003). Study on the Operating Characteristic of Sampled Value Differential Protection [J]. Proceedings of the Csee, 9, 014.
[16] Dommel, H. W., and J. M. Michels. "High-speed relaying using traveling wave transient analysis." In IEEE TRANSACTIONS ON POWER APPARATUS AND SYSTEMS, vol. 97, no. 4, pp. 1011-1011. 345 E 47TH ST, NEW YORK, NY 10017-2394: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1978.
[17] M. Arshad Shehzad Hassan, Guobing Song, Xiaoning Kang, Zaibin Jiao, Chenqing Wang, Sohaib Tahir, "Current Differential Protection for Distributed Transmission Lines using Low Sampling Frequency" International Journal of Engineering Works, Vol. 2, Issue 3, PP. 42-47, March, 2015.
[18] M. Arshad Shehzad Hassan, Guobing Song, Xiaoning Kang, Zaibin Jiao, Sohaib Tahir, Nouman Faiz, "A Novel Principle of Current Differential Protection for UHV and EHV Transmission Lines Based on Distributed Parameters Line Model"International Journal of Engineering Works, Vol. 2, Issue 4, PP. 48-53, April, 2015.
© The authors retain all copyrights
This article is open access and distributed under the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Authors disclose no conflict of interest or having no competing interest.
Vol. 2, Issue 4, PP. 54-57, April, 2015
In large enterprises multiple departments use different sort of information systems and databases according to their needs. These systems are independent and heterogeneous in nature and sharing information or data between these systems is not an easy task. The usage of middleware technologies have made data sharing between systems very easy. However monitoring the exchange of data or information for verification purposes between target and source systems is often complex or impossible for maintenance department due to security or access privileges on target and source systems. In this paper, we are intended to present our experience of an end to end data monitoring approach at middleware level implemented in Oracle BPEL for data verification without any help of monitoring tool.
Kashif Ali: Telenor Pakistan, syed.ali2@telenor.com.pk
Usman Javaid: Telenor Paksistan, usman.javaid1@telenor.com.pk
[1] http://docs.oracle.com/cd/E14571_01/core.1111/e10103/intro.htm#BABEICDD
[2] [Eugen Vasilescu, Seong K. Mun, "Service Oriented Architecture (SOA) Implications for Large Scale Distributed Health Care Enterprises," Proceedings of the 1st Distributed Diagnosis and Home Healthcare (D2H2) Conference Arlington, Virginia, USA, April 2-4, 2006.
[3] Philipp Leitner, "Monitoring, Prediction and Prevention of SLA Violations in Composite Services," in IEEE International Conference on Web Services, 2010.
[4] Zain Balfagih, "Agent based Monitoring Framework for SOA Applications Quality," in IEEE, 2010.
[5] http://www01.ibm.com/software/info/websphere/partners4/articles/gartner/garwho.html
[6] Marina Mongiello, Daniela Castelluccia, "Modeling and verification of BPEL business processes," in Proceedings of the Fourth Workshop on Model-Based Development of Computer-Based Systems, 2006.
[7] http://www.oracle.com/technetwork/middleware/bpel/overview/index.html
© The authors retain all copyrights
This article is open access and distributed under the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Authors disclose no conflict of interest or having no competing interest.
Vol. 2, Issue 4, PP. 48-53, April, 2015
Distributed capacitive current of ultra high voltage and extra high voltage (UHV&EHV) transmission lines has a severe negative effect on current differential protection. The current differential protection in this proposed paper is based on distributed parameters line model of the transmission line and has been used to solve the problem of distributive capacitive current of transmission line. Time-domain algorithm has been used to calculate currents at the set point of the line by using both ends current. By adding linear interpolation with low computational rate at each sampling points has been achieved. The theoretical analysis of this method is broach to demonstrate how the novel principle is of high sensitivity in differentiating between the external and the internal faults of the line. After theoretical analysis and applying the pristine novel principle of current differential protection for UHV and EHV transmission lines based on distributed parameters line model, the simulation results illustrates that the analysis done in this paper is quite appropriate as desired, correspondingly this recently acquired principle is much reliable, compared to the traditional principle.
This work is supported by National Natural Science Foundation of China through grants No. 51037005, 51177127 and National Basic Research Program of China (973 Program) (2012CB215105).
M. Arshad Shehzad Hassan, Xi’an Jiaotong University, Xi’an, China, Email: arxhad@yahoo.com, Tel: +92-0344-7306780
Guobing Song, Xi’an Jiaotong University, Xi’an, China, Email: song.gb@mail.xjtu.edu.cn, Tel: +86-13572131892
Xiaoning Kang, Xi’an Jiaotong University, Xi’an, China, Email: kangxn@mail.xjtu.edu.cn, Tel: +86-13519195338
Zaibin Jiao, Xi’an Jiaotong University, Xi’an, China, Email: jiaozaibin@mail.xjtu.edu.cn, Tel: +86-13572881504
Sohaib Tahir, Xi’an Jiaotong University, Xi’an, China, Email: sohaibchauhdary@gmail.com, Tel: +92-0332-6699333
Nouman Faiz, COMSATS Institute Of Information Technology , Islamabad, Pakistan, Email: engr.noumanfaiz@gmail.com, Tel: +92-0334- 7076102
[1] Yan, L. I., De_shu, C. H. E. N., Zhang, Z., & Xiang_gen, Y. I. N. (2001). The emulation analysis for the influence of capacitance current of UHV transmission line on differential current protection and compensating countermeasure [J]. Relay, 29(6), 6-9.
[2] Yuan, R., Chen, D., Yin, X., Zhang, Z., Ma, T., & Chen, W. (2000, January). Principle and property investigation of the transient current differential protection based on correlation analysis. In Power Engineering Society Winter Meeting, 2000. IEEE (Vol. 3, pp. 1945-1949). IEEE.
[3] Shi L, Wang G, Zhao J. Adaptive current differential protection for transmission lines [J]. Presented at the 8th IEE Int. Conf. Developments in Power System Protection, April 2004, vol. 2, pp. 424–427.
[4] Li, K. K., Gang, W., Baoji, Y., & Jiali, H. (2001). Implementation of adaptive dispersed phase current differential protection for transmission lines. In IEE Conference Publication (No. 478, pp. 64-69).
[5] Ito, H., Shuto, I., Ayakawa, H., Beaumont, P., & Okuno, K. (2001). Development of an improved multifunction high speed operating current differential relay for transmission line protection. In Developments in Power System Protection, 2001, Seventh International Conference on (IEE) (pp. 511-514). IET.
[6] Bi, T. S., Y. L. Yu, S. F. Huang, and Q. X. Yang. "An accurate compensation method of distributed capacitance current in differential protection of UHV transmission line." In Power Engineering Society General Meeting, 2005. IEEE, pp. 770-774. IEEE, 2005.
[7] Yekai, Wu, and Zou Dongxia. "The Influence of Capacitance Current to differential Protection and Its Compensation Scheme [J]." Relay 25, no. 4 (1997): 4-8.
[8] Yining, Zhang, and Suonan Jiale. "Phaselet-based current differential protection scheme based on transient capacitive current compensation." Generation, Transmission & Distribution, IET 2.4 (2008): 469-477.
[9] Jiale, Suonan, Zhang Yining, Qi Jun, and Jiao Zaibin. "Current Differential Protection Based on Time-Domain Algorithm of Capacitive Current Compensating." JOURNAL-XIAN JIAOTONG UNIVERSITY 39, no. 12 (2005): 1370.
[10] Suonan J, Liu K, Song G. A novel UHV/EHV transmission-line pilot protection based on fault component integrated impedance [J]. Power Delivery, IEEE Transactions on, 2011, 26(1): 127-134.
[11] Suonan J, Deng X, Liu K. Transmission line pilot protection principle based on integrated impedance [J]. Generation, Transmission & Distribution, IET, 2011, 5(10): 1003-1010.
[12] Song, Guobing, Jiale Suonan, Qingqiang Xu, Ping Chen, and Yaozhong Ge. "Parallel transmission lines fault location algorithm based on differential component net." Power Delivery, IEEE Transactions on 20, no. 4 (2005): 2396-2406.
[13] M. Arshad Shehzad Hassan, Guobing Song, Xiaoning Kang, Zaibin Jiao, Chenqing Wang, Sohaib Tahir, "Current Differential Protection for Distributed Transmission Lines using Low Sampling Frequency" International Journal of Engineering Works, Vol. 2, Issue 3, PP. 42-47, March, 2015.
© The authors retain all copyrights
This article is open access and distributed under the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Authors disclose no conflict of interest or having no competing interest.
Vol. 2, Issue 3, PP. 42-47, March, 2015
Current differential protection has been affected negatively by the distributed capacitive current of transmission lines. In order to solve the problem of distributed capacitance current of transmission line, the current differential protection in this paper is based on distributed parameters model of the transmission line. The current formula along with the transmission line is derived under this distributed parameter line model. The differential criterion is constructed with the current calculated from both ends to the set point. In order to improve the practicality of the criterion, the implementation of the differential protection is given under low sampling frequency. By adding a cubic spline data interpolation point at each sampling interval, the calculation of the set point distributed current under low sampling frequency is achieved. In order to improve the operating speed of current differential protection, the point is set at the midpoint of the line, and the magnitude of the current is calculated with a half data window absolute value integrals. The results show that the proposed novel current differential principle is not affected by the distributed capacitance current. It has obvious advantages compared with traditional current differential protection principle for the low sampling frequency requirement, fast action speed and the small amount of computation.
This work is supported by National Natural Science Foundation of China through grants No. 51037005, 51177127 and National Basic Research Program of China (973 Program) (2012CB215105).
M. Arshad Shehzad Hassan, Xi’an Jiaotong University, Xi’an, China, Email: arxhad@yahoo.com, Tel: +92-0344-7306780
Guobing Song, Xi’an Jiaotong University, Xi’an, China, Email: song.gb@mail.xjtu.edu.cn, Tel: +86-13572131892
Xiaoning Kang, Xi’an Jiaotong University, Xi’an, China, Email: kangxn@mail.xjtu.edu.cn, Tel: +86-13519195338
Zaibin Jiao, Xi’an Jiaotong University, Xi’an, China, Email: jiaozaibin@mail.xjtu.edu.cn, Tel: +86-13572881504
Chenqing Wang, Xi’an Jiaotong University, Xi’an, China, Email: wcqmorning@gmail.com, Tel: +86-13572073991
Sohaib Tahir, Xi’an Jiaotong University, Xi’an, China, Email: sohaibchauhdary@gmail.com, Tel: +92-0332-6699333
[1] McMurdo, J. N., and G. C. Weller. "Applications of digital differential protection." Developments in Power System Protection, 1993., Fifth International Conference on. IET, 1993.
[2] Bi, T. S., Y. L. Yu, S. F. Huang, and Q. X. Yang. "An accurate compensation method of distributed capacitance current in differential protection of UHV transmission line." In Power Engineering Society General Meeting, 2005. IEEE, pp. 770-774. IEEE, 2005.
[3] Yan, L. I., De_shu, C. H. E. N., Zhang, Z., & Xiang_gen, Y. I. N. (2001). The emulation analysis for the influence of capacitance current of UHV transmission line on differential current protection and compensating countermeasure [J]. Relay, 29(6), 6-9.
[4] Yekai, Wu, and Zou Dongxia. "The Influence of Capacitance Current to differential Protection and Its Compensation Scheme [J]." Relay 25, no. 4 (1997): 4-8.
[5] Xinzhou, Dong, Shu Bin, Bo Zhiqian, and He Jiali. "Study of special problems on protective relaying of UHV transmission line." Automation of Electric Power Systems 28, no. 22 (2004): 19-22.
[6] Yining, Zhang, and Suonan Jiale. "Phaselet-based current differential protection scheme based on transient capacitive current compensation." Generation, Transmission & Distribution, IET 2.4 (2008): 469-477.
[7] Jiale, Suonan, Zhang Yining, Qi Jun, and Jiao Zaibin. "Current Differential Protection Based on Time-Domain Algorithm of Capacitive Current Compensating." JOURNAL-XIAN JIAOTONG UNIVERSITY 39, no. 12 (2005): 1370.
[8] Yang, J. C., X. G. Yin, D. S. Chen, Z. Zhang, and Z. H. Wang. "The study of sampled value differential protection." In Transmission and Distribution Conference and Exposition, 2003 IEEE PES, vol. 1, pp. 256-261. IEEE, 2003.
[9] Jingchao, Yang, Yin Xianggen, Chen Deshu, and Zhang Ze. "Study on the operating characteristic of sampled value differential protection." In Electrical and Computer Engineering, 2003. IEEE CCECE 2003. Canadian Conference on, vol. 1, pp. 335-338. IEEE, 2003.
[10] Dommel, H. W., and J. M. Michels. "High-speed relaying using traveling wave transient analysis." In IEEE TRANSACTIONS ON POWER APPARATUS AND SYSTEMS, vol. 97, no. 4, pp. 1011-1011. 345 E 47TH ST, NEW YORK, NY 10017-2394: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1978.
[11] Song, Guobing, Jiale Suonan, Qingqiang Xu, Ping Chen, and Yaozhong Ge. "Parallel transmission lines fault location algorithm based on differential component net." Power Delivery, IEEE Transactions on 20, no. 4 (2005): 2396-2406.
© The authors retain all copyrights
This article is open access and distributed under the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Authors disclose no conflict of interest or having no competing interest.
Vol. 2, Issue 3, PP. 32-41, March, 2015
Fractions of the total head loss which constitute the loss through duct fittings are calculated for various duct runs in a conditioned air distribution system of a cafeteria building project. An ‘Excel’ plot shows a second order increase of the fraction from 0.70 to 0.76 for an increase in duct length from 6.2m to 22.1m. Also, an average fraction of 0.73 was obtained for an average duct length of 15.8m from the computed values. The study shows that the loss through duct fittings constitutes a major loss (being greater than 50% of the total), as corroborated by results of earlier studies. The fractions of head loss due to duct fittings obtained in this study would serve as useful approximations for similar duct layouts and lengths.
John I. Sodiki: Department of Mechanical Engineering, Rivers State University of Science and Technology, P.M.B.5080, Port Harcourt, Nigeria
Email: jisodiki_partners@yahoo.com, Cell # +2348033101488
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© The authors retain all copyrights
This article is open access and distributed under the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Authors disclose no conflict of interest or having no competing interest.
Vol. 2, Issue 2, PP. 28-31 , Feb. 2015
At present the large scale industries are manufacturing the fuel filter casing by means of split pattern injection moulding die. This is not much compact for the small scale industries and the medium scale industries for its production. In our project we are manufacturing the fuel filter casing by means of single plate injection moulding die. This is more compact for the small scale industries and the medium scale industries for its production of fuel filter casing. The removal of pattern is also easy by using of this single plate injection moulding die and also the manufacturing cost will be low. By inducing of high hardened material for the cavity plate and by inducing new plastic material for the component, we can able to increase the strength of the die as well as the component.
Elambarithi D, Department of Mechanical Engineering, Kongunadu College of Engineering and Technology, Mail: elambarithi93@gmail.com, Phone: +91 7708939587
Anandha valampuri M R, Department of Mechanical Engineering, Kongunadu College of Engineering and Technology, Mail: valam.vinayaga @gmail.com, Phone: +91 8870507054
Karthikeyan.M, Department of Mechanical Engineering, Kongunadu College of Engineering and Technology, Mail: karthimahesh.79@gmail.com,
Manikandan S, Department of Mechanical Engineering, Kongunadu College
of Engineering and Technology, Mail: manimech022@gmail.com, Arunkumar.G, Department of Mechanical Engineering, Kongunadu College of Engineering and Technology, Mail: manimech022@gmail.com,
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and investment casting metal parts”, International Journal of Advanced Manufacturing Technology, vol. 24, 2004, pp 485–495.
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© The authors retain all copyrights
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Authors disclose no conflict of interest or having no competing interest.
Vol. 2, Issue 2, PP. 23-27, Feb. 2015
Irrigation methods are significantly affects crop yield. Field experiment was conducted to evaluate the performance of center pivot irrigation system (CPS) and surface irrigation (SI) system with view to water application efficiency (Ea %), distribution coefficient (Du %), storage efficiency (Es %), coefficient uniformity (Cu %) Scheduling coefficient (Sc %), yield and water use efficiency (WUE) at two projects in the River Nile State (RNS), Sudan during the winter season of 2011-2012. The results showed that the Cu, Du, Ea and Sc % for the CPS were higher than those recorded by SI in the both seasons. Also, results revealed that the yield of wheat and potato under CPS was higher than the SI. The total amounts of water applied under CPS were 9019 (wheat) and 11024 m3 ha-1 (potato), while under the SI were 20000 (wheat) and 22857.6 m3 ha-1 (potato). Technical water use efficiency (TWUE) values for wheat and potato under the CPS system were found to be 1.913, and 0.205, respectively. While the corresponding values under the SI were 0.536, and 0.05, respectively. With careful management, the CPS under the study can produce high irrigation efficiency and high TWUE values, which mean higher crop production of with fewer amounts water applied.
Abubaker BM Ali: Hohai University, Nanjing, China, email, bakri@hhu.edu.cn, 0086-13512521474
Amir K Basheer: Hohai University, Nanjing, China, email, amir.basheer@yahoo.com.uk, 0086-15996311013
Nazar A Elshaikh: Hohai University, Nanjing, China, email, nizarelshaikh@gmail.com 008613913974891
Mohammad Alhadi: UNESCO water Institute, Norway, email, 004797429948
Omer A Altayeb: Gezira University, Sudan, omer11@yahoo.com, 00249912485544
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[12] Jorge, J., Pereira, L.S. Simulation and Evaluation of Set Sprinkler System with AVASPER Scientific paper published at www.google.com. Jorge Resu-N21.Pdf, 2002
[13] Rain, B. Distribution Uniformity. Rain Baird Distribution Uniformity for Sprinkler Irrigation. USA. www. rainbaird.com, 2008
[14] Salah A. S. Evaluation of Speed Effect on Center Pivot Irrigation System Performance at Waha Project under Sudan North State Conditions. International Conference on Civil and Architecture Engineering (ICCAE 2013) May 6-7, 2013 Kuala Lumpur, Malaysia, 2013
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[16] Connellan, G. Efficient irrigations: A reference manual for turf and landscape. Burnley Col., U. Melbourne, 2002
[17] Doorenbos J., Kassam AH., Bentrelsen C., Branscheid V., Ptusje J., Smith M, Uittenbogaard G., Vann Der Wall HK. Yield response to water FAO. Irrigation and Drainage, Paper No.33, 1986
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© The authors retain all copyrights
This article is open access and distributed under the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Authors disclose no conflict of interest or having no competing interest.
Vol. 2, Issue 2, PP. 18-22, Feb. 2015
Impact ionization in fully depleted (FD) Silicon On Insulator (SOI) n-Channel MOSFET is investigated as a function of the doping concentration. We have found that impact ionization increases with the decrease in the doping concentration and vice versa. Simulation results obtained from Sentaurus TCAD with the higher doping concentration can control the threshold voltage (Vth). Furthermore we have examined the effect of doping concentration on the transconductance (gm) and have observed that transconductance is inversely proportional of the doping concentration.
Kaleem Ullah: CSSP University of Punjab Lahore Pakistan,kaleem_758@yahoo.com
Saira Riaz, CSSP University of Punjab Lahore Pakistan,saira_cssp@yahoo.com
M.Habib, CSSP University of Punjab Lahore Pakistan,mhabiblhr@gmail.com
F.Abbas, CSSP University of Punjab Lahore Pakistan,fakhar.abbas30@yahoo.com
S.Naseem, CSSP University of Punjab Lahore Pakistan,shahzad_naseem@yahoo.com
I.Shah, CSSP University of Punjab Lahore Pakistan,ishfaq.pak@gmail.com
A.Bukhtiar, , CSSP University of Punjab Lahore Pakista,irfanbukhtiar@yahoo.com
[1] R. J. Luyken, T. Schulz, J. Hartwich, L. Dreeskornfeld, M. Steadele, W. Reosner, “Design considerations for fully depleted SOI transistors in the 25–50 nm gate length regime”, Solid-State Electronics 47 (2003) 1199–1203.
[2] J. B. Kuo, S. H. Lin, Wiley 2001
[3] H. Shang, M. H. White, “An ultra-thin midgap gate FDSOI MOSFET”, Solid-State Electronics 44 (2000) 1621-1625.
[4] R. Rao, N. DasGupta, A. Dasgupta, “Study of Random Dopant Fluctuation Effects in FD-SOI MOSFET Using Analytical Threshold Voltage Model”, IEEE Transaction and Material Reliability 10(2010) 247-253.
[5] M. J Gilbert, D. K. Ferry, “Discrete dopant effect in ultra small fully depleted ballistic SOI MOSFET”, Superlattices and Microstructures 34 (2003) 277-282.
[6] B. Jharia, S. Sarkar, R. P. Agarwal, “Analytical Study of Impact Ionization and Subthreshold Current in Submicron n-MOSFET”, Proceedings of the Sixth International Symposium on Quality Electronic Design 2005.
[7] X. Li, S. A. Parke, B. M. Wilamowski, “Threshold voltage control for deep Sub-micrometer Fully Depleted SOI MOSFET”, Proc. of the IEEE (2003) 284-287.
[8] M. K. Won, C. Choi, C. An, M. S. Kang, Y. S. Koo, “A Study on the Empirical Formulae of the Maximum Transconductance Variation in the
NMOSFET as a Function of the Back Bias and the DopConcentration”, Journal of the Korean Physical Society 39 (2001) S170_S172
[9] J. P. Colinge, “Silicon on Insulator Technology, Material to VLSI”, Springer, 3rd Edition, 2004.
© The authors retain all copyrights
This article is open access and distributed under the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Authors disclose no conflict of interest or having no competing interest.
Vol. 2, Issue 1, PP. 7-13, Jan. 2015
The more bigger a building project becomes, the more complex it will be, coupled with the fact that clients are now demanding for higher quality at a reduced cost and budget, these and many other challenges are faced by construction companies on how to adopt a strategy for higher quality at a reduced cost without affecting their profit margin and the clients requirement. This study recommends TQM as the only ways of solving these challenges in the construction industry.
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This article is open access and distributed under the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Authors disclose no conflict of interest or having no competing interest.
Vol. 2, Issue 1, PP. 1-6, Jan, 2015
Pounded-yam popularly called “Iyan” in Yoruba land, south west of Nigeria is traditionally prepared with wooden mortar and pestle, but due to associated problems with the preparation of the food, a motorised Yam Pounder Cum Boiler was designed and fabricated in the Department of Agricultural and Bio-Environmental Engineering, Auchi Polytechnic, Auchi Nigeria. The performance evaluation of the machine was carried out using a factorial experiment in a Randomised Complete Block Design (RCBD) involving three levels of speed (380, 479 and 565rpm) and three levels of feedrate (0.6, 1.2, 1.8kg) in three replications. The result obtained was statistically analysed using SPSS 16.0 software for Analysis of Variance (ANOVA) and Duncan’s New Multiple Range Test (DNMRT) to determine the level of significant among the treatment factors. The performance parameters considered for measurement are Pounding Efficiency (%), Pounding Capacity (kg/hr) and Percentage of Lumps (%). The results from the investigation obtained are 93%, 100.80 kg/hr and 7%, for Optimum Pounding Efficiency, Pounding Capacity and Percentage of Lumps respectively at Speed of 380 rpm and Feedrate of 1.8kg/min. Also, the result of the statistical analysis shows that the machine speed, feedrate and the interactions between them are all significant factors on the Pounding Capacity, Percentage of Lumps and Pounding Efficiency of the machine at 5% confidence level.
Adebayo, A.A: Department of Agricultural and Bio-Environmental Engineering Technology, School of Engineering Technology, Auchi Polytechnic, P.M.B 13, Auchi, Edo State, Nigeria, ajibolaadebayo975@yahoomail.com, +2348055916272
Yusuf, K.A: Department of Agricultural and Bio-Environmental Engineering Technology, School of Engineering Technology, Auchi Polytechnic, P.M.B 13, Auchi, Edo State, Nigeria, kamyuf@gmail.com, +2347067976293
Oladipo, A: Department of Agricultural and Bio-Environmental Engineering Technology, School of Engineering Technology, Auchi Polytechnic, P.M.B 13, Auchi, Edo State, Nigeria, oladipo_aj@yahoo.com, +2348138292051
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© The authors retain all copyrights
This article is open access and distributed under the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Authors disclose no conflict of interest or having no competing interest.