Zugl.: Hannover, Univ., Diss., 2006

Thesis (Ph. D.)--State University of New York at Buffalo, 1979. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 305-321).

Thesis (M.F.A.)--Bowling Green State University, 2010. / Document formatted into pages; contains vi, 45 p. Includes bibliographical references.

Diss. Univ. Freiburg/Schweiz, 2004.

Thesis (doctoral)--Universität St. Gallen, 2006.

University, Diss., 2003--München.

We define new metrics for linear codes over the ring Fq[u]/(ut) via an Fq-module monomorphism on linear codes over Fq. The construction generalizes the Gray map, Gray weight, and Lee weight; and the technique allows us to find some new optimal linear codes and their weight enumerator polynomial.

This thesis introduces low-cost implementations for the next generation distributed antenna system (DAS) using analogue radio over fibre. A multiple-input-multiple-output (MIMO) enabled radio over fibre (RoF) system using double sideband (DSB) frequency translation system is proposed. In such a system, the 2x2 MIMO signals can be transmitted to the remote antenna units (RAUs) from the base station via a single optical link. By using the DSB frequency translation, the original single-input-single-output (SISO) DAS can be upgraded into the MIMO DAS without implementing parallel optical links. Experimentally, the DSB frequency translation 2x2 MIMO RoF system transmits 2x2 LTE MIMO signals with 20MHz bandwidth in each channel via a 300m MMF link. The condition number of the system is < 10dB within the power equaliser bandwidth which means the MIMO system is well-conditioned and the crosstalk between the channels can be compensated by the MIMO signal processing. To install the DSB frequency translation system in a wideband service-agnostic DAS, the original MIMO signals need to be translated into unoccupied frequency bands over the DAS, which are usually occupied by specific applications that are not to be transmitted over the DAS. The frequency spectrum allocation of the wireless services is analysed showing that by choosing a particular LO frequency (2.2GHz in the UK), in the DSB frequency translation system, the original MIMO signals can always be translated into unoccupied frequency bands so that the same infrastructure can support multiple services. The idea of DSB frequency translation system can not only support MIMO radio over fibre but can also improve the SFDR of a general radio over fibre system. Because when the upper sideband and the lower sideband of the signal after translation are converted back to the original frequency band, the noise adds incoherently but the signals add-up coherently, this gives the system theoretically 2dB 3rd order SFDR improvement. If the idea of the DSB frequency translation is extended into a higher number of sidebands, the system SFDR can be further improved. Experimentally, the system 3rd order SFDR can be improved beyond the intrinsic optical link by 2.7dB by using quadruple sideband (QSB) frequency translation. It means the optical bandwidth in a general RoF system can be traded for the electrical SFDR. By integrating the analogue and the digital RoF systems, a hybrid DAS has been demonstrated, showing that the EVM dynamic range for the 4G LTE service (using digital RoF link) can be improved to be similar to the 3G UMTS service (using analogue RoF link), so that fewer number of RAUs for the LTE services are needed.

Class of 2012 Abstract / Specific Aims: The objective of this study is to evaluate consumers’ knowledge about over the counter (OTC) products containing acetaminophen (APAP).   Methods: Doctor of pharmacy student researchers set up a booth at consenting community pharmacies and invited consumers to participate in a 10-15 minute knowledge assessment. The booth contained a table displaying several OTC medication bottles/packages. Adult participants: a) answered baseline questions verbally about their APAP knowledge and associated risks; b) identified OTC products at the booth that contain APAP; and c) calculated and demonstrated dosing of APAP. The researchers asked follow-up questions and assessed the accuracy of the dosing. Participants received APAP educational brochures upon completion.      Main Results: Eighty percent of subjects reported not knowing what the abbreviation “APAP” means, and almost half of those who said that they knew what it means were incorrect. Very few participants were able to correctly identify the products containing APAP even with the product packaging information, with the percentage of incorrect responses as to whether a product contains APAP or not varying from 4.9% to 31.6%. More than 40% of the pediatric doses were incorrectly dosed for both of the pediatric formulations, even with the majority of subjects being parents. Conclusions: Consumers are not able to identify which over-the-counter products contain APAP even with the product packaging before them, and they do not know what the abbreviation “APAP” means. Better packaging and product ingredient information should be developed, and the abbreviation “APAP” should be avoided. Pediatric APAP products should be re-evaluated regarding safety and dosing.

The Android operating system, originally intended for smartphone devices, is now finding its way into cars and other vehicles. While the Android system already implements support for system updates, it is not suitable for use in the automotive domain. It is not compatible with modern automotive standards for diagnostic communication such as ISO 14229: Unified Diagnostic Services (UDS). This means that new tools, procedures and software would be needed to allow an Android device to be updated by a service technician in a repair shop or on the field. A better approach would be to add support for automotive diagnostic communication in Android. This way, the tools and supporting infrastructure that already exist can still be used. We have developed a solution for diagnostic communication on Android that is both modular and compatible with existing automotive standards. By using the standard ISO 13400: Diagnostic communication over Internet Protocol (DoIP), this solution enables both updating the system software on the Android device itself, as well as diagnostic communication with the ECUs on the vehicle’s internal CAN network. Thus, an existing diagnostic port based on a slower communication protocol such as CAN or J1587 could theoretically be replaced completely by the Android device’s Ethernet port. Finally, we have evaluated the performance of our implementation under various settings and conditions. These include varying the maximum size of a diagnostic message, different network settings, downloading software over a Wi-Fi link, and downloading data to multiple devices simultaneously. / Operativsystemet Android, ursprungligen avsett för smartphone-enheter, återfinns numera även i bilar och andra typer av fordon. Även om Android-systemet redan implementerar stöd för system-uppdateringar, är det inte lämpligt att använda i fordonsindustrin. Den är inte kompatibel med moderna fordons-standarder för diagnoskommunikation som t.ex. ISO:14229: Enhetliga diagnostiktjänster (UDS). Detta innebär att det skulle krävas nya verktyg, procedurer och mjukvara för att möjliggöra att en Android-enhet uppdaterades av en service-tekniker i verkstad eller i fält. Ett bättre tillvägagångssätt skulle vara att lägga till support för diagnoskommunikation i Android. På detta sätt skulle redan existerande verktyg och stödjande infrastruktur kunna fortsätta användas. Vi har utvecklat en lösning för diagnoskommunikation i Android som är både modulär och kompatibel med existerande fordonsstandarder. Genom att använda ISO 13400: Diagnostikkommunikation över Internet-protokoll (DoIP) möjliggör denna lösning både uppdatering av systemmjukvaran i själva Android-enheten, samt diagnoskommunikation med övriga styrenheter på fordonets interna CAN-nätverk. Därmed skulle en befintlig diagnosport baserad på ett långsammare kommunikationsprotokoll såsom CAN eller J1587 teoretiskt kunna ersättas helt och hållet med Android-enhetens Ethernet-port. Slutligen har vi testat vår implementations prestanda under varierande inställningar och förhållanden. Dessa inkluderar bland annat att variera den maximala storleken av ett diagnos-meddelande, olika nätverks-inställningar, att uppdatera mjukvaran över en Wi-Fi-länk, samt att uppdatera mjukvaran på flera enheter samtidigt.