Development of low temperature dielectric coatings for electrical conductors thirteenth quarterly report

Dielectric loss and connector problems at cryogenic temperatur

Study made of dielectric properties of promising materials for cryogenic capacitors

Experimental investigations were conducted to determine dielectric properties of promising materials for cryogenic capacitors to be used in energy storage and pulse applications. The three classes of materials investigated were inorganic bonded ferroelectric materials, anodic coatings on metal foils, and polar low temperature liquids

Diamond Prototypes for the ATLAS SLHC Pixel Detector

Vertex detectors at future hadron colliders will need to cope with large particle fluences. Diamond is a particularly radiation hard material and exhibits further properties that makes it an attractive material for such detectors. Within the RD42 collaboration several chemical vapor deposition diamond samples are being studied in the form of strip and pixel detectors. While the quality of the poly-crystalline diamond samples is constantly increasing and the feasibility of producing wafers has been demonstrated, recently a single-crystal diamond pixel detector has been assembled and characterized in a 100 GeV particle beam at CERN. Results on performance, detection efficiency, spatial resolution and charge collection are reported here together with the latest radiation damage studies.Comment: 3 pages, 8 figures, 1st International conference on Technology and Instrumentation in Particle Physics (TIPP09

Bounded Rationality in Principal‐Agent Relationships

We conducted six treatments of a standard moral hazard experiment with hidden action. All treatments had identical Nash equilibria. However, the behavior in all treatments and periods was inconsistent with established agency theory (Nash equilibrium). In the early periods of the experiment, behavior differed significantly between treatments. This difference largely vanished in the final periods. We used logit equilibrium (LE) as a device to grasp boundedly rational behavior and found the following: (1) LE predictions are much closer to subjects’ behavior in the laboratory; (2) LE probabilities of choosing between strategies and experimental behavior show remarkably similar patterns; and (3) profit‐maximizing contract offers according to the LE are close to those derived from regressions.experiment, logit equilibrium, moral hazard, hidden action

Evaluation of thin wall spacecraft electrical wiring. Volume I - Test methods and facilities Technical report no. 1

Test methods and facilities used in evaluating performance characteristics of thin wall spacecraft electric wiring under simulated spacecraft environment

Evaluation of thin wall spacecraft electrical wiring. Volume II - Test results and facilities Technical report no. 1

Insulation resistance of spacecraft wiring against abrasion, radiation effects, oxygen environment, and extrusion lubricant

Evaluation of thin wall spacecraft electrical wiring. Volume II - Summary and conclusions Final report

Performance characteristics environmentally determined for spacecraft, thin wall wiring - summary and conclusion

Cryogenic capacitor investigation Final report

Electrical and mechanical properties data on dielectrics to estimate parameters of cryogenic capacitor

A study on when to conclude a long term fertilizer trial on coconut yield

Yield data obtained for twenty consecutive from a fertilizer trial carried out at the coconut research institute in Sri Lanka on a mature coconut plantation was subjected to an analysis with a view to ascertatining the relative influence of repeated application of fertilizer on coconut yield. The inter-annual correlation coefficients between successive pairs of years showed that the correlations first increased, then reached a plateau, then increased again and finally ended up in an asymptote. From the eighth year onwards the inter-annual correlation between succeeding pair of years remained stati0onary. The average correlation was 0.9351. On the basis of these results, an eight to ten year period is considered sufficient to under stand the full response to fertilizer in an experiment. After this period, it appears no useful purpose would be achieved

E-Learning in der Hochschullehre: Überholt Technik Gesellschaft? Lern- und lehrtheoretische Überlegungen zu einfachen E-Learning-Anwendungen in der Volkswirtschaftslehre

Die jüngere Diskussion über E-Learning-Anwendungen in der (Hochschul-)Lehre ist geprägt von einer gewissen Begeisterung über die Möglichkeiten anspruchsvoller, entwickelter Computertechnik. Die Realität sieht oft anders aus: In Hochschulen werden – außerhalb einzelner Pilotprojekte – oft einfache E-Learning Anwendungen genutzt, die die Potentiale modernster Computertechnologie nicht annähernd ausnutzen. An solchen Anwendungen wiederum wird in der aktuellen wissenschaftlichen Diskussion grundlegende, teilweise pauschale Kritik geübt. Können solche einfachen Anwendungen – trotz dieser Kritik – in bestimmten Bereichen der Hochschullehre sinnvoll eingesetzt werden? Wo liegen bei genauerer Betrachtung ihre Möglichkeiten und Grenzen? Warum werden weiter entwickeltere Programme nicht häufiger eingesetzt? Der folgende Beitrag untersucht diese Fragen exemplarisch für einfache Selbsttest-Einheiten, die im Rahmen des EU-geförderten Projekts «Web-Econ» von europäischen Hochschulen für das Fach Volkswirtschaftslehre erstellt und in der Lehre erprobt wurden. Grundlage hierfür ist ein knapper Überblick über Gestaltungsprinzipien von Lern-Hilfsmitteln (Instruktions- und Problemlösungs-Prinzip) und sie fundierende lerntheoretische Ansätze (Behaviourismus, Kognitivismus und Konstruktivismus)