payoffs from information technology (it) continue to generate interest and debate both among academicians and practitioners. these have led the decision makers to confusion about it effect on firms` financial performance; they don’t know either high or low effect is because of internal or external factors of organizational environment. the mechanism for decreasing the risks is to identify the c...

This paper describes a method for collecting real-time energy consumption statistics for a custom wearable system. We describe an implementation of hardware and software which provides detailed trace data for every major subsystem of a wearable computer, including the microprocessor, memory, and I/O. This design is entirely selfcontained, requires no external instrumentation, and imposes low co...

Learning of mathematical concepts is a crucial point for high school students as well as students in science and engineering disciplines. In order to facilitate the learning of these abstract concepts we have developed a system to interactively explore these concepts based on a multi-touch table. The table is used as I/O device to additionally stimulate the haptic sense and to allow simple and ...

In this paper, a strongly stabilizing controller design method, proposed earlier for finite dimensional systems, is extended to a class of time delay systems. A special factorization of the plant is done first. Then, an infinite dimensional one-block H∞ control problem is solved using existing techniques. The solution of this H∞ control problem, together with the stable coprime factors of the p...

Quantum-dot Cellular Automata (QCA) technology is attractive due to its low power consumption, fast speed and small dimension, therefore, it is a promising alternative to CMOS technology. In QCA, configuration of charges plays the role which is played by current in CMOS. This replacement provides the significant advantages. Additionally, exclusive-or (XOR) gate is a useful building block in man...

Phoneme-oriented input with synchronised autorevision to pictographic nature of written Chinese and Chinese speech recognition are two subjects not often brought together in the same article nor even the same proposition. This paper explores the growing relations between these two entities and, in particular, investigates what is found in integration the Chinese phonetic input with its auto-rev...

The stability and performance of nonlinear and linear parameter varying (LPV) time delayed systems are analyzed. First, the input/output behavior of the time delay operator is bounded in the frequency domain by integral quadratic constraints (IQCs). A simple geometric interpretation is used to derive new IQCs for both constant and varying delays. Second, the performance of nonlinear and LPV del...

The basic building blocks in our muc system are reusable text handling tools which we have been developing and using for a number of years at the Language Technology Group. They are modular tools with stream input/output; each tool does a very speci c job, but can be combined with other tools in a unix pipeline. Di erent combinations of the same tools can thus be used in a pipeline for completi...

This is a survey on wearable computers consists of a comprehensive introduction and an overview of research activities in I/O interface, searching, communication, and power.