American Journal of Management Science and Engineering

Volume 2, Issue 5, September 2017

  • Lightning Related Human Risks and Risk Management

    Chandima Gomes

    Issue: Volume 2, Issue 5, September 2017
    Pages: 65-79
    Received: 28 June 2017
    Accepted: 12 July 2017
    Published: 15 August 2017
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    Abstract: A comprehensive account of lightning related hazards to human beings, both at general locations and at work place has been given. The injury mechanisms are analyzed from both engineering and medical perspectives with the view of determining the factors to be considered in risk assessment for minimizing adverse impacts of lightning from both direct ... Show More
  • Truncated Hybrid Double Acceptance Sampling Plan (THDASP) for Weibull Product Life Distribution

    Braimah Odunayo Joseph, Osanaiye Peter Asanaiye

    Issue: Volume 2, Issue 5, September 2017
    Pages: 80-88
    Received: 20 March 2017
    Accepted: 17 April 2017
    Published: 23 October 2017
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    Abstract: In this paper, an improved reliable acceptance sampling plan (Truncated hybrid Double Acceptance Sampling Plan (THDASP)) is proposed for products life that follows Weibull distribution when the testing is truncated at a specified time (t). This type of inspection sampling plan can be used to save the testing time in practical situations. The optima... Show More
  • A Cascaded NPC/H- Bridge Inverter with Superior Harmonic Content and Improved DC Link Voltage Control for Grid Interface Application

    Tom Wanjekeche

    Issue: Volume 2, Issue 5, September 2017
    Pages: 89-105
    Received: 02 May 2017
    Accepted: 13 May 2017
    Published: 23 October 2017
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    Abstract: Modeling of Cascaded Multilevel converter has put more emphasize on conventional cascaded H- bridge inverter. First a new phase shifted SPWM control algorithm for cascaded NPC/H-bridge inverter is proposed. Its Superior harmonic suppression is verified by comparing its harmonic spectrum with that of the conventional multicarrier approach. For DC- b... Show More
  • Regularization, Recognition and Complexity Estimation Methods of Automata Models of Discrete Dynamical Systems in Control Problem

    Anton S. Epifanov

    Issue: Volume 2, Issue 5, September 2017
    Pages: 106-116
    Received: 26 February 2017
    Accepted: 26 April 2017
    Published: 23 October 2017
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    Abstract: In paper are considered laws of functioning of discrete determined dynamical systems and specific processes of functioning of such systems. As basic mathematical model of laws of functioning of systems are used automata models with a fundamentally new extension of these models to models with a countable infinite sets of states. This expansion is po... Show More
  • Infrasound Propagation of Finite Amplitude Wave in the Big Size Horn

    Galyna Ivanovna Sokol, Vladyslav Yurievich Kotlov, Elena Sergeevna Mironenko, Sergey Yurievich Kirichenko

    Issue: Volume 2, Issue 5, September 2017
    Pages: 117-122
    Received: 07 April 2017
    Accepted: 21 April 2017
    Published: 23 October 2017
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    Abstract: The analytical expressions, allowing analyzing the laws of increase and decrease of the second harmonic at excitation of the finite amplitude wave in the air-horn, are obtained. The distance, where the second harmonic propagating along the air-horn reaches its maximum, is determined. Comparative analysis for air-horns of different shapes is perform... Show More
  • Comparative Analysis on Speed Control of a Three Phase Induction Motor Drive Using Proportional Integral Differential and Scalar Closed Loop Fuzzy Logic Approach

    Obinna Christopher Anyim, Joseph Michael Môm, Jonathan Uhaa Agber

    Issue: Volume 2, Issue 5, September 2017
    Pages: 123-131
    Received: 13 March 2017
    Accepted: 12 April 2017
    Published: 23 October 2017
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    Abstract: The principles of controlling an AC driven three phase induction motor employing constant volts/hertz (v/f) control method and the space vector pulse width modulation (SVPWM) technique are reviewed. The induction motor is one of the most common electrical motors in usage, owing to its unique characteristics. Its further application strength require... Show More
  • PVT Analysis Reports of Akpet GT9 and GT12 Reservoirs

    Okotie Sylvester, Ofesi Samuel, Ikporo Bibobra

    Issue: Volume 2, Issue 5, September 2017
    Pages: 132-144
    Received: 30 March 2017
    Accepted: 31 July 2017
    Published: 24 October 2017
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    Abstract: The estimation of the volume initial in place and the future performance prediction of hydrocarbon reservoir is associated with uncertainties in the geologic, petrophysical, PVT properties and production data. It is therefore important to a precisely characterize the reservoir fluid properties to successfully simulate the reservoir and size of faci... Show More
  • About One Method of Active Dynamic Damping

    Teshaev Muhsin Кhudoyberdiyevich, Yuliyev Ozod Olimovich, Oripov Zayniddin Bakhtiyorovich

    Issue: Volume 2, Issue 5, September 2017
    Pages: 145-149
    Received: 31 March 2017
    Accepted: 04 May 2017
    Published: 24 October 2017
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    Abstract: In this article questions of active clearing of vibrations of system are considered. The paper deals with the active damping of the system's oscillations. Considering that the system is constrained by servosvyazami, for a single-mass system it is proposed to perform servosviaz by changing the mass of the absorber. For this it is proposed to build a... Show More
  • Determination of Trip Attraction Rates of Shopping Centers in Uttara Area, Dhaka

    Md. Shamim Al Razib, Faysal Ibna Rahman

    Issue: Volume 2, Issue 5, September 2017
    Pages: 150-155
    Received: 31 March 2017
    Accepted: 19 April 2017
    Published: 24 October 2017
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    Abstract: Due to the high growth rate of urbanization in developing countries like Bangladesh leads to increase in vehicular traffic. Travel demand models are useful in managing the increased travel demand. So, Trip generation step is essential in planning of transportation facilities for Dhaka the capital of Bangladesh. In this study, the trip attraction ra... Show More
  • Development of Cheap LM35-Based Air-Conditional Automation System

    Oyelakin Kazeem Akinloye

    Issue: Volume 2, Issue 5, September 2017
    Pages: 156-159
    Received: 17 April 2017
    Accepted: 12 June 2017
    Published: 24 October 2017
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    Abstract: Convenience, Comfort and Conservation are three undeniable products of Home Automation and Smart Home benefits. To this end, this work aimed to design, construct and implement a Cheap Air Conditional (AC) Automation System that schedules automatically when it should be ON or OFF based on the prevailing ambient temperature. Methods of Electrical/Ele... Show More