International Journal of Mechanical Engineering and Applications

Volume 4, Issue 2, April 2016

  • Experimental and Numerical Study of Air Flow Diffusion and Contaminants Circulation in Room Ventilation Related with Iraqi Climate

    Alaa Abbas Mahdi, Alaa Abbas Mahdi

    Issue: Volume 4, Issue 2, April 2016
    Pages: 24-42
    Received: 13 February 2016
    Accepted: 25 February 2016
    Published: 7 March 2016
    Downloads:
    Views:
    Abstract: Illnesses of many indoor air quality problems occur in office room. Ventilation is one way to control the contaminant transport and to provide better indoor air quality with in the office. In the evaluation of indoor air quality, CO2 concentration is regarded as a good indicator to estimate the air quality level and to assess the performance of a m... Show More
  • Connection Between the Number of Complaints About Welding Suppliers and End Product Quality: The Case of Customized Welding Production

    Jenni Toivanen, Harri Eskelinen, Paul Kah, Jukka Martikainen

    Issue: Volume 4, Issue 2, April 2016
    Pages: 43-49
    Received: 5 February 2016
    Accepted: 16 February 2016
    Published: 9 March 2016
    Downloads:
    Views:
    Abstract: Although undesirable, manufacturing defects leading to complaints are almost inevitable in the production of manufactured products, and consideration of manufacturing quality is therefore an essential aspect of management of supply chains with multiple suppliers. This study evaluates the relationship between complaints about the end product and wel... Show More
  • Cascading Failure Risk Assessment Considering Protection System Hidden Failures

    Rui Hu, Xindong Liu, Yulong Huang, Can Chen, Jianfen Zhang

    Issue: Volume 4, Issue 2, April 2016
    Pages: 50-58
    Received: 15 February 2016
    Accepted: 24 February 2016
    Published: 5 April 2016
    Downloads:
    Views:
    Abstract: Cascading failure plays an important role in blackouts. Complex network theory, with the disadvantage of ignoring some of physical features of the power systems, is often utilized to model the cascading failure evolution processes. In this paper, a new risk assessment method based on evolution procedure and dynamic fault trees (DFTs), is proposed t... Show More
  • Impact Performance of W-beam Guardrail Supported by Different Shaped Posts

    Tso-Liang Teng, Cho-Chung Liang, Ching-Yu Hsu, Chien-Jong Shih, Thanh-Tung Tran

    Issue: Volume 4, Issue 2, April 2016
    Pages: 59-64
    Received: 10 April 2016
    Published: 11 April 2016
    Downloads:
    Views:
    Abstract: This study applied the finite element code LS-DYNA for evaluating the crashworthiness of W-beam guardrail. Four crash test simulations were conducted for evaluating the safety performance of the W-beam guardrail with four different post configuration according to the European standard EN1317. The results showed that the best performance was demonst... Show More
  • Analysis of Aeroelastic Stability of Long Straight Wing with Store System

    Yan-Ping Xiao, Yi-Ren Yang

    Issue: Volume 4, Issue 2, April 2016
    Pages: 65-70
    Received: 17 April 2016
    Published: 19 April 2016
    Downloads:
    Views:
    Abstract: The aeroelastic equations of long straight wing with store system are developed in this paper by applying the Hamilton’s Principle. The dynamical model takes the store as an independent degree of freedom and considers the geometric nonlinearity of wing. The system dynamics is numerically simulated by using the Galerkin’s method. Results show that t... Show More
  • Investigating Pitting Corrosion of Stainless Steel and Aluminium Using Scanning Vibrating Electrode Techniques and Electrochemical Noise Measurement

    Chinwuba Victor Ossia, Charles Ugochukwu Orji

    Issue: Volume 4, Issue 2, April 2016
    Pages: 71-80
    Received: 13 April 2016
    Accepted: 22 April 2016
    Published: 7 May 2016
    Downloads:
    Views:
    Abstract: In this study, the susceptibility of aluminium (Al) and steel SS304 to pitting corrosion in FeCl3 and NaCl solutions with varying pH values were investigated using electrochemical noise (ECN) measurement and Scanning Vibrating Electrode Technique (SVET). Preliminary surface drop test of SS304 in FeCl3 solution and total immersion test of Al in NaCl... Show More
  • Label-Free Detection of Aflatoxin B1 Using a Nanomechanical Sensor

    Xiarong Zhou, Shangquan Wu, Hong Liu, Xiaoping Wu, Qingchuan Zhang

    Issue: Volume 4, Issue 2, April 2016
    Pages: 81-87
    Received: 7 May 2016
    Published: 9 May 2016
    Downloads:
    Views:
    Abstract: As a highly sensitive nanomechanical sensor, microcantilever sensor is widely used in biochemical detection. Aflatoxin B1 (AFB1), a hepatocarcinogen widely present in food and food materials, is highly dangerous to human health, and new sensitive methods to detect AFB1 are needed. Here, we developed a microcantilever-array-based immunosensor used i... Show More
  • Modeling and Optimization of Hard Turning Operation on 41Cr4 Alloy Steel Using Response Surface Methodology

    Christopher Okechukwu Izelu, Samuel Chikezie Eze, Festus Ifeanyi Ashiedu

    Issue: Volume 4, Issue 2, April 2016
    Pages: 88-102
    Received: 3 May 2016
    Accepted: 14 May 2016
    Published: 30 May 2016
    Downloads:
    Views:
    Abstract: Product quality, productivity and organizational goodwill are often the major concern of every production or manufacturing unit. These criteria, more especially product quality, cannot readily and effectively be met through dependence on the skills of an operator. Hence, the need for optimization in order to identify the best process condition, der... Show More