Es wird eine kurze Beschreibung des LCA-Formats gegeben. Dateien dieses Formats werden im Design Flow des XACT Systems von Xilinx als Ausgabe der Plazier- und Verdrahtungsprogramme APR bzw. PPR erzeugt. Bei der hier gegebenen kurzen Beschreibung stehen die Angaben zur Verdrahtung im Vordergrund.

Companies often require designers to work with and operate between different computer-aided design (CAD) systems. To interoperate between these systems, a neutral design standard for CAD models is needed that allows for generation, customization, and parameterization. Current standards often fail to incorporate file history and design intent. The research proposes a simplified, neutral design format that can be used to generate models in different CAD systems. The format proposes additional functionality not yet found in existing neutral formats or scripts. The system was tested by generating models in both NX and CATIA, then comparing the models for accuracy, flexibility, and similarity of the results. Utilizing the principles established with the neutral framework, a system was developed that facilitates a collaborative CAD modeling environment that supports the interaction of models within virtual reality (VR). A framework is presented that allows for the models to be created and then used in VR without the need for conversion. Strategies are discussed for minimizing the impacts of latency and unit testing was conducted to evaluate functionality. Furthermore, feasibility of using modern game engines such as Unity, Unreal Engine, and Godot to aid in the development of both VR and physics simulations are discussed. The above foundation and frameworks enhance collaboration in training and simulation in VR environments. This research demonstrates that by using neutral design standards, collaboration could be improved between different software, as well as between different engineers. Common strategies can be used for solving issues with conversions across the design space and integrated into future VR systems. This research will be indispensable to furthering studies of collaboration and design in remote environments.

Companies often require designers to work with and operate between different computer-aided design (CAD) systems. To interoperate between these systems, a neutral design standard for CAD models is needed that allows for generation, customization, and parameterization. Current standards often fail to incorporate file history and design intent. The research proposes a simplified, neutral design format that can be used to generate models in different CAD systems. The format proposes additional functionality not yet found in existing neutral formats or scripts. The system was tested by generating models in both NX and CATIA, then comparing the models for accuracy, flexibility, and similarity of the results. Utilizing the principles established with the neutral framework, a system was developed that facilitates a collaborative CAD modeling environment that supports the interaction of models within virtual reality (VR). A framework is presented that allows for the models to be created and then used in VR without the need for conversion. Strategies are discussed for minimizing the impacts of latency and unit testing was conducted to evaluate functionality. Furthermore, feasibility of using modern game engines such as Unity, Unreal Engine, and Godot to aid in the development of both VR and physics simulations are discussed. The above foundation and frameworks enhance collaboration in training and simulation in VR environments. This research demonstrates that by using neutral design standards, collaboration could be improved between different software, as well as between different engineers. Common strategies can be used for solving issues with conversions across the design space and integrated into future VR systems. This research will be indispensable to furthering studies of collaboration and design in remote environments.

Historically, the doctoral dissertation has had two purposes: to train young scholars in proper research methodology, and to contribute original findings to research. However, some feel that the traditional dissertation format falls short of these goals for two reasons. First, the majority of dissertations never get published in academic journals, and dissertations are unlikely to get cited in academic articles. Second, many students in doctoral programs see little authenticity in traditional dissertations because the writing style and process differ from that of academic articles. In response to these concerns, many Instructional Technology programs have implemented alternative dissertation formats. This study used survey data to investigate the benefits, challenges, perceptions and current practices of alternative dissertation formats in Instructional Technology. Online surveys were sent to 74 students, 61 alumni, and 38 faculty of Instructional Technology programs in 2010, and 78 students, 43 alumni, and 12 department representatives in 2014. Data were analyzed using qualitative and quantitative methods. Surveys found that alumni who completed alternative dissertation formats received more citations for their dissertations than those who completed traditional dissertations, showing that alternative dissertations increase the likelihood of impact. Additionally, respondents reported that alternative dissertation formats facilitate authenticity and collaboration, and prepare students for a career in academia. However, some participants perceived alternative dissertations as less rigorous than traditional dissertations, with ambiguous requirements and expectations of quality. More research is needed in order to understand current practices for alternative dissertation formats in Instructional Technology.

The major objectives of this thesis involve the development of both dynamic and interactive applications aimed at complementing traditional engineering and science coursework, laboratory exercises, research, and providing users with easy access by publishing the applications on Wolframs Demonstration website. A number of applications have been carefully designed to meet cognitive demands as well as provide easy-to-use interactivity. Recent technology introduced by Wolfram Mathematica called CDF (Computable Document Format) provides a resource that gives ideas a communication pipeline in which technical content can be presented in an interactive format. This new and exciting technology has the potential to help students enhance depth and quality of understanding as well as provide teachers and researchers with methods to convey concepts at all levels. Our approach in helping students and researchers with teaching and understanding traditionally difficult concepts in science and engineering relies on the ability to use dynamic, interactive learning modules anywhere at any time. The strategy for developing these applications resulted in some excellent outcomes. A variety of different subjects were explored, which included; numerical integration, Green's functions and Duhamel's methods, chaotic maps, one-dimensional diffusion using numerical methods, and two-dimensional wave mechanics using analytical methods. The wide range of topics and fields of study give CDF technology a powerful edge in connecting with all types of learners through interactive learning. / Master of Science

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Syftet med denna uppsats är att undersöka vilka skillnader vana lyssnare beskriver att det upplever vid lyssning, mellan originalutgåva på vinyl från 60-talet och digitala remasters av samma låt, samt vilken av versionerna de föredrar. De skillnader som undersöks är fokuserat på tre tekniska fenomen. Dessa fenomen är dynamiskt omfång, frekvensspektrum och stereobredd. Frågeställningarna är vilka skillnader deltagarna i undersökningen hör mellan versionerna samt vilken version de föredrar. De teoretiska grunderna för att förstå dessa fenomen kommer från Hubers (2013) teorier om dynamiskt omfång och frekvensspektrum, samt Gibson & Curtis (2019) teorier om stereobredd. Metoden som använts för undersökningen är lyssningstest med tillhörande enkät och ett lyssningstest med fokusgruppdiskussion. I undersökningen deltog fyra personer i vardera testet. Den tidigare forskning som presenteras i uppsatsen är från Barys (2013) artikel (Re)Releasing The Beatles där han undersöker fyra låtar och de skillnader som finns mellan vinylversioner från 60-talet och digitala remasters från 2009. I artikeln framgår det att det finns tydliga skillnader mellan versionerna och att den största förklaringen till dessa skillnader var på grund av hur de hade bearbetats på olika sätt. Undersökningens resultat visar att undersökningsdeltagarna uppfattade skillnader mellan versionerna. De största skillnaderna fanns i frekvensspektrumet där deltagarna beskrev de upplevde frekvenserna som motsatser i vinylversionen jämförelsevis med den digitala remastern. Deltagarna upplevde även stora skillnader i det dynamiska omfånget mellan versionerna. Gällande skillnaderna i stereobredden gav undersökningen inga tydliga resultat då deltagarna inte kunde avgöra några större skillnader. Vilken versionen som deltagarna föredrog var väldigt blandad. För några av låtarna i undersökningen så föredrog de den digitala versionen och i några fall originalutgåvan på vinyl. Uppsatsen främsta bidrag till forskningen är den ökade förståelsen för vilken åsikt personer, runt 20 årsåldern på 2020-talet, med god kunskap inom musikproduktion har kring fenomenen vinyl och digital remaster.