Seismologists construct images of the Earth's interior structure using observations, derived from seismograms, collected at the surface. A common approach to such inverse problems is to build a single 'best' Earth model, in some sense. This is despite the fact that the observations by themselves often do not require, or even allow, a single best-fit Earth model to exist. Interpretation of optim...

Acceptance sampling procedures are the practical tools for quality assurance applications involving product control. Acceptance sampling systems are advocated when small sample size are necessary or desirable towards costlier testing for product quality. Dodge – Romig plans can be single or double plans. There are two sets of plans. One is based on satisfying a given limiting quality level (LQL...

Broken rails are the most frequent cause of freight-train derailments in the United States. Consequently, reducing their occurrence is a high priority for the rail industry and the U.S. Federal Railroad Administration. Current practice is to periodically inspect rails to detect defects using nondestructive technology such as ultrasonic inspection. Determining the optimal rail inspection frequen...

The ability to create complete 3D models of real world objects is an important task for various applications. In digital inspection, complete models allow users to analyze the entirety of an object. However, various difficulties arise for imagebased acquisition techniques. First, the viewpoint planning problem must be solved. Second, each of the resulting viewpoint captures must be combined wit...

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...

Wavelet analysis is suitable for investigating waves, such as Pi 2 pulsations, which are limited in both time and frequency. We have developed an algorithm to detect Pi 2 pulsations by wavelet analysis. We tested the algorithm and found that the results of Pi 2 detection are consistent with those obtained by visual inspection. The algorithm is applied in a project which aims at the nowcasting o...

EDITOR: We read with interest the article published by Gauthama and Morris [1] in which the authors reported the findings of a survey of UK anaesthetists for checking the capnograph before anaesthesia. The authors reported that majority of UK anaesthetists use exhaled breath to check the capnograph but the practice is not universal due to concerns of sterility. We wish to report a critical inci...

It may take weeks or months before a stealthy attack is detected. As networks scale up in size and speed, monitoring for such attempts is increasingly a challenge; collection and inspection of individual packets is difficult as the volume and the rate of traffic rise. This paper presents an efficient method to overcome such a challenge. Data reduction has become an integral part of passive netw...