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Ohne Zusammenfassung     

Characterization and modeling of a noncollinearly phase-matchedfemtosecond optical parametric oscillator based on KTA and operating tobeyond 4 μm

We describe the design and operation of a critically phase-matched femtosecond optical parametric oscillator based on KTA. By employing a small pump-signal noncollinear angle, tuning of the idler to beyond 4 μm is achieved using a Ti:sapphire pump laser. A Gaussian-beam model is described which can be used to identify the optimal noncollinear phase-matching geometry. Idler and signal pulses are characterized fully both temporally and spectrally and interferometric autocorrelation data at 3.5 μm showing idler pulses of only eight optical cycles duration are presented     

Muonium in silicon tetrachloride

Muonium in liquid SiCl has been observed for the first time at low temperature (−65°C) The observed polarization of muonium is as much as 25% of the total spin polarization and shows a fast relaxation rate.     

Furnace grown gate oxynitride using nitric oxide (NO)

Gate oxynitride was grown in NO for the first time. This approach can provide a tight N accumulation near the Si/SiO₂ interface. Much lower thermal budget is required for an NO process than for an N₂O process to produce an oxynitride with useful properties. Submicron MOSFET's with NO oxynitride showed superior current drive characteristics and comparable hot carrier immunity to those with N₂O oxynitride     

What do I do now: suggestions for the frustrated mid-career professional

Librarians, like most professionals, may arrive at a stage in their careers when they start questioning themselves about their job satisfaction and importance. The reasons are many, from not being challenged by their work to abrupt changes in the workplace dictated by management and the economy. At this stage, professionals may begin to feel unappreciated by management and not in control of their work environment. In this piece, I offer some suggestions that could help mid-career librarians to re-energize themselves and survive in a workplace that is in constant flux. How you react to the anxiety of "job disconnect" will affect the rest of your career life. Should you become more proactive at your job, increasing your responsibility and value to your institution? What does your personality have to do with how you adjust to management changes? Does tenure fit into this equation? Should you even think about changing your job at this stage of your career? What other factors could "spice" up your career? Specific strategies and options for each of these questions will be discussed.     

Replacement-Policy Development: A Case Study of Glove Replacement at a Nuclear Processing Facility

Individual/group replacement models were used to identify the minimum-cost policy for replacing protective gloves that are utilized in product fabrication at a nuclear processing facility. Since historical data on glove longevity were not available to determine the failure-rate distribution, the classical replacement model for items that fail was modified to consider glove life as a normally distributed variable. Moreover, the absence of replacement-cost required that the classical model be transformed to incorporate the ratio of single to unit-group replacement cost. Sensitivity analysis on these two input parameter values provided guidance for the development of an appropriate replacement policy.