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Real Time System Based Monitoring of Turbine Parameters and Protection System in Thermal Power Plant
M. Surekha,
N. Suthanthira Vanitha,
K. Yadhari
Issue:
Volume 3, Issue 3, May 2015
Pages:
69-75
Received:
5 March 2015
Accepted:
19 March 2015
Published:
7 April 2015
Abstract: Currently in thermal power plant the turbine system parameters like temperature, speed, lubrication oil level and vibrations can be monitored by using the MATLAB. If any problem occurs in the turbine parameters, that can be controlled manually and the protection system is based on the relay mechanism which causes failure in the action of switch. In the proposed system, the drawbacks are eliminated with the support of high speed embedded processor. Real Time processor can be easily altered according to the ports and number of devices can also be connected. The parameters in the turbine system can be measured, monitored and controlled automatically. The parameters variations can be graphically represented by using the LabVIEW.
Abstract: Currently in thermal power plant the turbine system parameters like temperature, speed, lubrication oil level and vibrations can be monitored by using the MATLAB. If any problem occurs in the turbine parameters, that can be controlled manually and the protection system is based on the relay mechanism which causes failure in the action of switch. In...
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Effect of Diatomaceous Earths on Mortality, Progeny and Weight Loss Caused by Three Primary Pests of Maize and Wheat in Kenya
Ngatia Christopher Mugo,
Mbugua John Nderi,
Mutambuki Kimondo
Issue:
Volume 3, Issue 3, May 2015
Pages:
76-82
Received:
3 February 2015
Accepted:
4 March 2015
Published:
17 April 2015
Abstract: The Kensil fine (KF) dust was evaluated under laboratory conditions for the control of three important storage insect pests of maize and wheat. Serial concentrations of KF, Dryacide (DA) and Wood ash (Ash) were admixed with 100g of maize or wheat in ventilated glass jars. Mortality of S. zeamais, P. truncatus and R. dominica was assessed at 7, 14, 28, 56 and 84 days interval after grain treatment. At 28 days, all the three dusts effectively controlled S. zeamais with 95% - 100% mortality while only DA was effective against P. truncatus. Both KF and Ash, with 84% and 92% mortality, did not reach the threshold required for P. truncatus. Mortality in R. dominica only peaked after 56 days but again only DA treatment was effective at 84 days. The delayed effect of the Diatomaceous earths (DE) and ash treatments appear to contribute to the higher damage inflicted; hence more weight loss than was expected. At 28 days mean sample weight loss by S. zeamais was 4.5% while P. truncatus and R. dominica caused 4.2% and 3.5% respectively. The emerged progeny after 14 days exposure to the three dusts was different for each pest with DA producing the least and KF the most. These results formed the criteria on which to base future trials under simulated farmer storage practice.
Abstract: The Kensil fine (KF) dust was evaluated under laboratory conditions for the control of three important storage insect pests of maize and wheat. Serial concentrations of KF, Dryacide (DA) and Wood ash (Ash) were admixed with 100g of maize or wheat in ventilated glass jars. Mortality of S. zeamais, P. truncatus and R. dominica was assessed at 7, 14, ...
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Analyzing the Internet Filtering Policies in KSA and USA
Issue:
Volume 3, Issue 3, May 2015
Pages:
83-89
Received:
4 April 2015
Accepted:
16 April 2015
Published:
24 April 2015
Abstract: This paper attempts to define internet filtering and outline the purpose of enforcing the filtering policy, and analyze its effect on the use of the Internet resources. This study further examines and evaluates the regulations regarding Internet access in Saudi Arabia, with an emphasis on the problems that people come across during Internet access with limited access to specific web pages due to the policy of filtering. This paper will also examine the case of the Supreme Court of the United States appellant vs. American library association which is similar to that of the Saudi Arabian case with miniscule differences only in term of ritual and cultural aspects. The paper evaluates the advantages and disadvantages of using the filtering policy and its influence and application to the culture and religion of Saudi Arabia. The study further enlists some of the rules and regulation, developed about this issue with the reference of the case of the Court of the United States appellant's vs. American library association. Finally, this study discusses the impact of different cultural and tradition on the ways of application of the filtering strategy in both sides.
Abstract: This paper attempts to define internet filtering and outline the purpose of enforcing the filtering policy, and analyze its effect on the use of the Internet resources. This study further examines and evaluates the regulations regarding Internet access in Saudi Arabia, with an emphasis on the problems that people come across during Internet access ...
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Geophysical Investigation of Loss of Circulation in Borehole Drilling: A Case Study of Auchi Polytechnic, Auchi, Edo State, Nigeria
Yusuf Inusa,
Ogundele Olusegun John,
Odejobi Yemi,
Auwal Ishaq Haruna
Issue:
Volume 3, Issue 3, May 2015
Pages:
90-95
Received:
28 November 2014
Accepted:
17 December 2014
Published:
30 April 2015
Abstract: Geophysical investigation of loss of circulation in Borehole drilling at the Auchi Polytechnic Auchi, Etsako West L.G.A, Edo State, Nigeria was carried out. Electrical resistivity sounding techniques with Schlumberger array for Vertical Electrical Sounding (VES 1) was used while modified Schlumberger array was used for Vertical Electrical Sounding (VES 2) with Australia Energy Market Commission (AEMC) Soil Resistivity meter. The Digital Ground Resistance and Soil Resistivity Tester model 6470-B was used. The Tester was produced by Australia Energy Market Commission. Geographical coordinate were obtained from a Global Positioning System (GPS) device. The quantitative interpretation of the resistivity sounding curves was done to obtain the layer thicknesses and resistivities with the computer assisted iteration techniques. Five and four geoelectric layers were resolved for Vertical Electrical Sounding (VES 1) and Vertical Electrical Sounding (VES 2) respectively. The loss of circulation within this borehole occurs around the depth of 36m. The loss zones are permeable and aerated with very high resistivity values. The void spaces within the soil layer in the horizon are not conducive. Pre-drilling geophysical investigation should not be optional but a necessity for every borehole drilling project in order to know the subsurface geology.
Abstract: Geophysical investigation of loss of circulation in Borehole drilling at the Auchi Polytechnic Auchi, Etsako West L.G.A, Edo State, Nigeria was carried out. Electrical resistivity sounding techniques with Schlumberger array for Vertical Electrical Sounding (VES 1) was used while modified Schlumberger array was used for Vertical Electrical Sounding ...
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Study Shapes and Alignments of Rotational States in Some Rare-Earth Nuclei
N. A. Mansour,
N. M. Eldebawi
Issue:
Volume 3, Issue 3, May 2015
Pages:
96-100
Received:
30 April 2015
Accepted:
6 May 2015
Published:
16 May 2015
Abstract: The ground state rotational band members for the studied nuclei have been identified and their energies calculated to about 0.3%. These energies provide good test of various models for rotational bands, and impressive agreement is observed with a theoretical calculations by the variable moment of inertia (VMI) model and cubic polynomial (CP) formula. In addition to giving an excellent fit to the excitation energy of the ground-band levels in all nuclei. Also reproduces a critical spin Ic beyond which the square rotational frequency ω2 decreases although the moment of inertia ℑ keeps on increasing, thus resulting in back bending in I -ω2 plot for some of the studied nuclei. This feature is predicted to appear not only in the deformed nuclei but also at quite low spins in nearly spherical nuclei as well. Also the formula contains the low and high spin behavior in agreement with the available experimental data.
Abstract: The ground state rotational band members for the studied nuclei have been identified and their energies calculated to about 0.3%. These energies provide good test of various models for rotational bands, and impressive agreement is observed with a theoretical calculations by the variable moment of inertia (VMI) model and cubic polynomial (CP) formu...
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