After prolonged usage of materials, the formation of cracks and corrosion initiates due to stress, loading condition, the environment of operation, etc. and this affects the structural integrity of structures. Periodic inspection of structures is usually planned, especially in industries where the impact of failure could be devastating, such as oil and gas pipelines, storage tanks, vessels, and airplanes, etc. which are just a few amongst others. This inspection is often aimed at detecting cracks and corrosion of internal and external components using several forms of non-destructive testing mechanism usually performed by a specialist at a high rate. To reduce the cost of inspection as well as downtime due to inspections and maintenance, deployments of mobile robots with fault tracking and identification purpose are steadily increasing. This paper, therefore, details the implementation of an image processing technique using MATLAB to identify defects of structural elements.
The use of smartphone technology as a tool for communication is ever-increasing, and this technology shows no sign of decline. Moreover, since the era of social networking, smartphones have become a significant entity that humans cannot do without. Internet of things has now opened a new era where we can keep contact data, surf the internet, exchange messages, take notes, carry files and documents, etc. Besides, we can now control hardware like lights, fans, air conditioners, etc. This research aims at designing home security systems to keep selected space safe from intruders and detect gas leakage. The methodology integrated GSM module, ultrasonic sensor, Passive Infrared Sensor (PIR), and gas detectors to implement the wireless remote home security technology. This system adopts the Global System for Mobile Communication (GSM) technology for optimal functionality and is programmed to respond rapidly as intrusion or gas leakage is detected. The GSM module alerts the homeowner via phone call.
This paper is an educational design course project on the modification of a bicycle frame and engineering components to enhance mobility and reduce effort while cyclic. The project was simulated with computer aided software which includes material selection and structural modification, which is an important element of design. The brushless DC motor is assembled over the back wheel as propellant. The correlative material/application processes and materials selection are briefly discussed in this study
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