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Development, Delivery and Evaluation of a Safety Training Program on Demolition for Blight Reduction

Open Journal of Civil Engineering 2024年第1期14卷 96-115页

作者： Emrah Kazan Mumtaz Usmen tarik najib Department of Civil & Environmental Engineering Wayne State University Detroit USA

The main objective of the work presented in this paper was to develop a customized safety training program that can be incorporated into the demolition projects undertaken as part of blight reduction efforts in urban centers. A subsidiary objective was to devise and implement a safety program evaluation methodology, and gain insights on the relationships between knowledge acquisition through training and trainee demographics. Salient aspects of blight elimination efforts, as well as the main facets of building demolition practices and requirements, were reviewed. Information on various related safety and health hazards was studied in depth with a focus on demolition operations dealing with blighted properties. A unique safety hazard awareness training program was created for demolition workers, contractors and inspectors based on this research. In addition to devising a curriculum of relevant training topics along with traditional and online delivery systems to be employed, effectiveness evaluation instruments were formulated. Based on the limited data collected from the trainees it was concluded that the program was well-received by them and provided effective learning. It was also found that no statistically significant associations existed between the knowledge gain of the trainees, and either their experience level or union status, after taking this training.

关键词： Blight Removal Demolition Safety Hazard Control Training Program

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Analysis of the Boundary Stability of a Diffusion-Reaction System on a Nanolayer

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Journal of Applied Mathematics and Physics 2024年第5期12卷 1682-1698页

作者： tarik Boulahrouz Mohammed Filali Jamal Messaho najib Tsouli Laboratory of Applied Mathematics of the Oriental Faculty of Sciences of Oujda Mohamed First University Oujda Morocco

In this paper, the focus is on the boundary stability of a nanolayer in diffusion-reaction systems, taking into account a nonlinear boundary control condition. The authors focus on demonstrating the boundary stability of a nanolayer using the Lyapunov function approach, while making certain regularity assumptions and imposing appropriate control conditions. In addition, the stability analysis is extended to more complex systems by studying the limit problem with interface conditions using the epi-convergence approach. The results obtained in this article are then tested numerically to validate the theoretical conclusions.

关键词： Limit Behavior Limit Problems Feedback Control Epi-Convergence Method Lyapunov Method Nanolayer

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