Ultrasonic testing and evaluation procedures typically depend on reference reflectors to establish detection sensitivity and evaluation of test data. Rules and regulations governing safety-related components emphasize on test procedures that assure the detectability of discontinuities at all over the component and oriented in any arbitrary direction. Existing procedures, however, do not provide...

The main objective of software inspections is to find faults in software artefacts. The benefits of inspections are reported from researchers as well as software organizations. In some studies, the fault detection in inspections has shown to be more efficient than other validation and verification activities. A problem, however, is that inspections sometimes are not as efficient and effective a...

AIMS To develop fast and reliable sampling procedures for DNA-based diagnosis of wood decay fungi in standing trees. METHODS AND RESULTS A total of 250 trees were tested for the presence of a suite of wood decay fungi by collecting wood frass obtained by drilling each tree once with a 4-mm-diameter, 43-cm-long bit. We identified at least one of 11 target wood decay fungi in 56 trees through m...

in this paper, absorbing markov chain models are developed to determine the optimum process mean levels for both a single-stage and a serial two-stage production system in which items are inspected for conformity with their specification limits. when the value of the quality characteristic of an item falls below a lower limit, the item is scrapped. if it falls above an upper limit, the item is ...

This paper presents the formulations of the expected long-run cost per time unit for a system monitored by a static control chart and by an adaptive control chart respectively. The static chart has a fixed sampling interval and a fixed sample size. The adaptive chart has a fixed sample size but variable sampling intervals. The system is supposed to have three states, normal working state, failu...

aim and background: in this study we examined the efficacy of unified transdiagnostic treatment in reduction of women with generalized anxiety disorder pathological symptoms. methods and materials: in the present study we used non-congruent multiple baseline experimental single case study design. three women with generalized anxiety disorder (gad) were selected  from patients of tabriz two coun...

The identification of the nature of the traffic flowing through a TCP/IP network is a relevant target for traffic engineering and security related tasks. Despite the privacy concerns it arises, Deep Packet Inspection (DPI) is one of the most successful current techniques. Nevertheless, the performance of DPI is strongly limited by computational issues related to the huge amount of data it needs...

Automated visual inspection (AVI) systems are playing important roles in ensuring manufacturing quality in the electronic industry especially in the assemblage of printed circuit boards (PCB). Most existing AVIs that are used for PCB inspection are categorized as non-contact inspection systems consisting of a single overhead camera. Such systems, which can be manual or automated, are incapable ...