International Journal of Computer Aided Engineering and Technology (5 papers in press)

Regular Issues

• Optimization the Delay in the Portfolio construction Using GSA  
  by Kadhim R. Erzaij 
  Abstract: Construction project suspension is known to be one of the big issues that have a significant negative impact on the project and its participants. The papers key goal is to adhere to the degree to which the project achieves its goals (timely and budgetary implementation). It also helps to understand the obstacles, challenges and causes that the project faces explicitly or implicitly, thereby being a background for the delay. These factors will lead to a reduction in economic viability, forcing projects in particular in developing countries to overrun and to a decrease in growth opportunities. Finally, putting in a quantitative framework to calculate the delay effects and to predict the possible losses. Using the GSA algorithm to find the best solution for certain delays in construction projects. The unavailability of the clients serious evaluation of the bidders real technical capabilities through the tendering phase prioritizes the awarding of bids to incompetent contractors, bringing them forward and winning the bids. GSA is a very easy solution to find, as most of its velocity is about zero.
  Keywords: Delay; project ; GSA ; system.
  
  
• A Study on Media Players in Accessibility Perspective  
  by Muralidhar Pantula 
  Abstract: Despite, the growth of media content on the web, the necessity of user-agent that renders media content is becoming prominent. Considering the needs of persons with disability, WAI recommended guidelines of how web content to specify. Along with user-agent play major role in making inaccessible content accessible. The user-agents must ensure the web content must be accessible to all users by providing the requirements through its interface and by communicating with other assistive technologies. In this paper, we have seen the problems for the persons with disabilities. we have studied the media players which are recently developed and in what way they followed the guidelines to make the content accessible to users. We designed an estimated metric based on requirement identified from the guidelines issued in WAI. Using these metrics, we have calculated the accessibility score of each player and concluded that most improvement is needed in video players designs.
  Keywords: Media Players; video; Persons with Disabilities; usability; User Agents.
  DOI: 10.1504/IJCAET.2022.10037404
   
  
• Plates with Functionally Graded Materials under Thermo-Mechanical Loading: A Study  
  by Amandeep , Srikant Sekhar Padhee 
  Abstract: This paper discusses the gradation and thickness effect on plates made up of Functionally Graded Material (FGM) under the action of coupled thermo-mechanical loading. In this study a plate made up of FGM is applied with a coupled thermo-mechanical loading. Temperature over one surface of the plate is applied and the mechanical load which is acting in the form of pressure is applied on the same surface where higher temperature is applied. Thus the combined effect of temperature gradient along with the action of mechanical loading is observed on the FGM. The results obtained helps in determining the response of the structure for different values of the volume fraction exponent and for different values of the thickness of the plate. Thus from the obtained results a material can be tuned by varying the volume fraction exponent and thickness of plate for specific kind of applications. The same results also helps in optimizing the structure from thickness aspect by decreasing the thickness of the structure keeping in mind that the various failure limits of the structure are not reached. Further, the efforts have been made to reduce the mass of the structure preventing the failure of the FGM plate thermally and from stress point of view. The whole analysis is carried out in finite element tool ABAQUS. Results obtained can act as a guiding principle for selection of a particular type of gradation and the limiting value of thickness of the structure for a specific kind of application.
  Keywords: Functionally Graded Materials; Finite Element Analysis; ABAQUS; UMAT.
  DOI: 10.1504/IJCAET.2022.10039972
   
  
• Digital Image Watermarking Technique based on Adaptive Median Filter and HL Sub-band of Two-stage DWT  
  by Rajeev Kumar, Piyush Kumar Singh, Jainath Yadav 
  Abstract: The digital watermarking has capabilities to sort out the matter of copyright degradation, and it is resolved by examining the imperceptibility and robustness of digital images. The robustness against geometric distortions is a crucial issue in the watermarking. In this work, the proposed digital watermarking approach uses an adaptive median filter operation and the HL sub-band of two-stage Discrete Wavelet Transforms (DWT). The cover image has been processed through an adaptive median filter to produce a smooth image. After, one-level DWT is applied to reference and watermark images. We have selected a high-frequency HL sub-band for the watermark embedding process. The second stage of DWT has been applied to obtain the modified HL sub-band. The performance of the proposed method is evaluated by computing various measures such as Peak Signal to Noise Ratio (PSNR), Mean Squared Error (MSE), and normalized correlation (NC). The proposed method is vigorous in opposition to various attacks, including the lossy JPEG compression attack. From the results, it is observed that the proposed method performs better than the recent existing methods.
  Keywords: Watermarking; DWT; IDWT; SVD; Adaptive Median Filter.
  
  
• Industry 4.0 projects: a set of new individual competencies  
  by Tainá Alves Townsend, Cristiane Drebes Pedron, Rodrigo Menezes De Souza, Roberto Lima Ruas 
  Abstract: The current paper aims to identify the individual competencies of collaborators in industry 4.0 projects. We used the Delphi method with three rounds as a research methodology. Sixty-three experts engaged with industry 4.0 projects, professionals and academics, participated in the study. A set of individual competencies related to industry 4.0 was identified: (1) technical (technical skills, systemic process comprehension, IT security skills, project management tendency, analytical skills, and business knowledge), (2) personal (flexibility, learning motivation, decision-making, ambiguity tolerance, and ability to work under pressure), (3) methodological (creativity, digital mindset, and entrepreneur thinking) and (4) social aspects (communication skills, team-working skills, being committed and proactive, conflict resolution, and leadership skills). The findings led to a list of competencies for project managers and other team members in the industry 4.0' context. This result provides new insights related to personnel development in project-managed environments and educational guidance for the future workforce.
  Keywords: Industry 4.0; Competencies; Project management; Workforce; Skills; Individual Competencies; Digital Transformation; Delphi Method; Competences; Individual Competences.