Quality inspection is an indispensable part of modern industrial manufacturing. Steel as a major industry requires constant surveillance and supervision through its various stages of production. Continuous casting is a critical step in the steel manufacturing process in which molten steel is solidified into a semi-finished product called slab. Once the slab is released from the casting unit, th...

ABSTRACT: Building maintenance is the responsibility of its owner which must use, whenever appropriate, a technician to perform the inspection. A good maintenance depends on the analysis of the anomalies detected during the inspection of the site. Building Information Models (BIM) have revealed themselves as a good tool when it comes to supporting maintenance actions, due to their ability to st...

The blade is one of the most critical parts of an aviation engine, and a small change in the blade geometry may significantly affect the dynamics performance of the aviation engine. Rapid advancements in 3D scanning techniques have enabled the inspection of the blade shape using a dense and accurate point cloud. This paper proposes a new method to achieving two common tasks in blade inspection:...

This research presents three profit sharing models of a key item in a two-echelon supply chain production. The first model maximizes the supplier’s profit while allowing the producer to take his own optimal inspection sampling policy. The second model is developed exclusively to the supplier’s advantage. The last model adopts a collaborative strategy that permits both parties to negotiate an in...

Software testing incurs a considerable expense when developing software systems. Software testing requires voluminous test data to demonstrate that “few” errors exist. If the process of software testing could be carried out automatically, then the testing efficiency would increase and the cost of software development would be significantly reduced. This paper describes an automated approach to ...

Building maintenance is the responsibility of its owner which must use, whenever appropriate, a technician to perform the inspection. A good maintenance depends on the analysis of the anomalies detected during the inspection of the site. Building Information Models (BIM) have revealed themselves as a good tool when it comes to supporting maintenance actions, due to their ability to store enough...

In this research, we study a single-component system that is characterized by three distinct states, cf. the Delay Time Model: normal, defective, and failed. The system is maintained by an inspection policy with fixed time intervals, and preventive system replacement after a number of inspections. The inspections are imperfect, and the probability of an inspection error changes over the system’...

Cities composed of many mountainous areas necessitate the use tunnels for roads and highways with a potential safety hazard. To determine tunnels, periodic tunnel inspections mainly rely on manual work, which is dangerous slow. Therefore, this paper proposes an auto-inspection system inspection consisting robotic arm, laser sensors, radar to free inspectors from hazardous environments high-inte...

The paper presents an economical model for double variable acceptance sampling with inspection errors. Taguchi cost function is used as acceptance cost while quality specification functions are normal with known variance. An optimization model is developed for double variables acceptance sampling scheme at the presence of inspection errors with either constant or monotone value functions. The m...