Factory Inspection

Ergonomics improvements of the visual inspection process in a printed circuit assembly factory.

An ergonomics improvement study was conducted on the visual inspection process of a printed circuit assembly (PCA) factory. The process was studied through subjective assessment and direct observation. Three problems were identified: operators' eye problems, insufficient time for inspection and ineffective visual inspection. These problems caused a huge yearly rejection cost of US 298,240 dolla...

NECTAR: Game-Theoretic Factory Inspection Scheduling and Explanation for Toxic Wastewater Abatement

Leather is an integral part of the world economy and a substantial income source for developing countries. Despite government regulations on leather tannery waste emissions, inspection agencies lack adequate enforcement resources, and tanneries’ toxic wastewaters wreak havoc on surrounding ecosystems and communities. Previous works in this domain stop short of generating executable solutions fo...

Application of Wavelet Packet Entropy Flow Manifold Learning in Bearing Factory Inspection Using the Ultrasonic Technique

For decades, bearing factory quality evaluation has been a key problem and the methods used are always static tests. This paper investigates the use of piezoelectric ultrasonic transducers (PUT) as dynamic diagnostic tools and a relevant signal classification technique, wavelet packet entropy (WPEntropy) flow manifold learning, for the evaluation of bearing factory quality. The data were analyz...

From factory inspection to adult health service; a review of governmental administration of occupational health.

In western Europe, the view seems to be widely held that the protection of the health of workers, by definition and by practical necessity, must be a legal responsibility of ministries or departments of labour. There are good historical reasons for this viewpoint, and considerable practical experience to back it up. In today's world, however, where newly industrializing countries are looking to...

The Value of Inspection Galleries