objective: the aim of the present study was to compare the performance of laser fluorescence (lf) method with other conventional diagnostic techniques in detection of small occlusal caries in permanent teeth. materials and methods: prior to this in vitro diagnostic study, a pilot study assessed intra- examiner reliability and reproducibility. the occlusal surfaces of 90 extracted human premolar...

the suspension system of a vehicle is one of the most important parts which is involved in the process of vehicle designing. when a vehicle suspension system is designed, the evaluation of its performance against the road disturbances such as shocks and bumps are very important. the most commonly used systems consist of four hydraulic jacks with mobility in vertical line with low speed and low ...

In order to assure appearance quality of an industrial product, sensory inspection by human vision (visual inspection) is implemented in many manufacturing industries. This study focuses on the fact that the frequency of occurrence of defective products varies each time in production processes, and also considers the relationship between the mixing rate of the defective product and defect detec...

Production management aims to maximize profit by increasing salable output while reducing the cost related with inspection, where inspection is defined as the measurement and quality assessment of items produced. This study is based on a semiconductor production line with consecutive deteriorating machines. Each machine is inspected via the items it produces and an inspection result triggers a ...

In this paper, some properties of the periodic shadowing are presented. It is shown that a homeomorphism has the periodic shadowing property if and only if so does every lift of it to the universal covering space. Also, it is proved that continuous mappings on a compact metric space with the periodic shadowing and the average shadowing property also have the shadowing property and then are chao...

this paper is devoted to the study of determining optimal process mean in system production with the two markets for the sale of goods. in this paper, we developed an absorbing markov chain model in production systems where all items are inspected %100 for conformance with their specification limits. when the value of the quality characteristic of an item falls below a lower limit, the item is ...

This paper outlined a feature-based inspection process planning system for co-ordinate measuring machines (CMMs). The inspection process planning system is designed to produce an inspection process planning directly from CAD model. The prototype inspection process planning system includes ®ve functional modules: the tolerance feature analysis, accessibility analysis, clustering algorithm, path ...

Structural Health monitoring (SHM) is essential to analyze safety issues in civil infrastructures and bridges. With the recent advancements in sensor technology, SHM is moving from the occasional or periodic maintenance checks to continuous monitoring. While each technique, whether it is utilizing assessment or sensors, has their advantages and disadvantages, we propose a method to predict infr...

Periodic refactoring of a large source code often becomes a necessity especially for long-lived projects. In order to increase maintainability and extensibility of such projects, design pattern based refactoring can be seen as an emerging alternative. Manual inspection of source code to find candidate spots where patterns can be introduced is time consuming. Therefore automated tools can help i...