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During the current period of rapid technological change, business students need to emerge from their introductory course in Information Systems (IS) with a set of fundamental principles to help them "think about Information Technology (IT)" in future courses and the workplace. Given the digital revolution, they also need to appreciate the role of information in business as well has how to meet the challenges involved in managing information effectively. This paper addresses both those needs by presenting a fundamental principle concerning information management: How you store information affects how you can retrieve it. The paper commences by presenting the principle in a manner that can be used to introduce it to the class. It continues by providing numerous concepts and examples that draw on the principle and that students are likely to encounter in the core IS course, subsequent courses, and their real-world use of technology. The paper concludes by raising a set of issues suitable for class discussion or exam questions.

A method is presented by which elastothermodynamic damping can be included in finite element formulations for design analysis. In this method, elastothermodynamic damping theory is combined with a perturbation method previously developed for viscoelastic modeling. A key aspect of this approach is that it projects elastothermodynamic damping onto the undamped mode shapes of the structure. A finite element formulation is developed and presented for beams in both bending and extension. The finite element formulation creates nonsparse, nonsymmetric damping and stiffness matrices. Results with this method for various cases are discussed. After validation against the classic Zener model damping prediction, the method is applied to the analysis of damping in a three-dimensional truss. The results show that elastothermodynamic damping is higher for modes with a larger portion of their strain energy due to local member bending rather than extension. Through examples it is shown that to maximize elastothermodynamic damping in a truss, both the member cross section and the truss mode shapes must be considered.

A theoretical and experimental investigation of the polarization dependence of 1550-nm semiconductor optical amplifiers containing compressive and tensile wells is presented.

Research was conduced to investigate the effects of tensile strain on differential gain and Auger recombination in 1.5-micro m multiple-quantum-well lasers. Results indicate that laser threshold expands between 0%-0.5% mismatch and contracts to -1.3% with TM polarized emission. It was also observed that threshold current density is primarily influenced by Auger recombination rather than by the inverse cavity length of highly tensile-strained lasers.

Attempts to determine the wavelength dependence of auger recombination in long-wavelength quantum-well semiconductor lasers. Information on the use of hydrostatic pressure; Details on the high pressure measurements; Information on the results and discussion of this study.

Direct removal of 99TcO4− from the highly acidic solution of used nuclear fuel is highly beneficial for the recovery of uranium and plutonium and more importantly aids in the elimination of 99Tc discharge into the environment. However, this task represents a huge challenge given the combined extreme conditions of super acidity, high ionic strength, and strong radiation field. Here we overcome this challenge using a cationic polymeric network with significant TcO4− uptake capabilities in four aspects: the fastest sorption kinetics, the highest sorption capacity, the most promising uptake performance from highly acidic solutions, and excellent radiation-resistance and hydrolytic stability among all anion sorbent materials reported. In addition, this material is fully recyclable for multiple sorption/desorption trials, making it extremely attractive for waste partitioning and emergency remediation. The excellent TcO4− uptake capability is elucidated by X-ray absorption spectroscopy, solid-state NMR measurement, and density functional theory analysis on anion coordination and bonding. [ABSTRACT FROM AUTHOR]

Direct removal of 99 TcO 4 - Tc discharge into the environment. However, this task represents a huge challenge given the combined extreme conditions of super acidity, high ionic strength, and strong radiation field. Here we overcome this challenge using a cationic polymeric network with significant TcO 99 Tc discharge into the environment. However, this task represents a huge challenge given the combined extreme conditions of super acidity, high ionic strength, and strong radiation field. Here we overcome this challenge using a cationic polymeric network with significant TcO 4 - uptake capabilities in four aspects: the fastest sorption kinetics, the highest sorption capacity, the most promising uptake performance from highly acidic solutions, and excellent radiation-resistance and hydrolytic stability among all anion sorbent materials reported. In addition, this material is fully recyclable for multiple sorption/desorption trials, making it extremely attractive for waste partitioning and emergency remediation. The excellent TcO 4 - uptake capability is elucidated by X-ray absorption spectroscopy, solid-state NMR measurement, and density functional theory analysis on anion coordination and bonding.