A key concern for all multinationals is where to find a suitable location for their business activities, bearing in mind that they must find the right balance between global integration and local responsiveness. This article contributes to the internationalization debate by asking: in what sense will information technology enable globalization? We focus on the sourcing process, an area where gl...

In clinical practice, digital radiographs taken for caries diagnostics are viewed on varying types of displays and usually in relatively high ambient lighting (room illuminance) conditions. Our purpose was to assess the effect of room illuminance and varying display types on caries diagnostic accuracy in digital dental radiographs. Previous studies have shown that the diagnostic accuracy of car...

<p>The safety of manipulators systems is receiving a lot attention these days. Faults have the ability to carry out harmful activities that harm equipment, environment, or persons. As result, it critical detect and diagnose problems as soon possible, well incorporate fault tolerance avoid performance deterioration circumstances. Robust sensor detection isolation (FDI) fault-tolerant contr...

PURPOSE How do display settings and ambient lighting affect contrast detection thresholds for human observers? Can recalibrating a display for high ambient lighting improve object detection? METHODS Contrast∕detail (CD) threshold detection performance was measured for observers using four color displays with varying overall contrast (e.g., differing maximum luminance and ambient lighting cond...

this paper presents a new observer design methodology for a time varying actuator fault estimation. a new linear matrix inequality (lmi) design algorithm is developed to tackle the limitations (e.g. equality constraint and robustness problems) of the well known so called fast adaptive fault estimation observer (fafe). the fafe is capable of estimating a wide range of time-varying actuator fault...

Although time is one of our most intuitive physical concepts, its understanding at the fundamental level still an open question in physics. For instance, quantum mechanics and general relativity are two distinct incompatible entities. While deals with events (points spacetime), being observer dependent dynamical, describes systems by treating as independent parameter. To resolve this conflict, ...