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Visar resultat 1 - 5 av 78 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Multichannel Audio Signal Processing : Room Correction and Sound Perception

   Författare :Adrian Bahne; Anders Ahlén; Lars-Johan Brännmark; Mathias Johansson; Peter Händel; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Audio signal processing; multichannel sound reproduction; equalizers; human sound perception; room correction; Elektroteknik med inriktning mot signalbehandling; Electrical Engineering with specialization in Signal Processing;

   Sammanfattning : This thesis concerns and combines multichannel sound reproduction, digital room correction, audio signal processing, and human sound perception. It investigates perceived sound quality and new methods to improve timbral and spatial fidelity of loudspeaker-based multichannel sound reproduction in reverberant environments. LÄS MER

3. 2. I främsta rummet : planerandet av en högskolebiblioteksbyggnad med studenters arbete i fokus

   Författare :Krister Johannesson; Geir Vestheim; Jan Nolin; Maj Klasson; Nan Dahlkild; Högskolan i Skövde; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Academic library buildings; College and university libraries; Architecture and building; Discourse analysis; Architectural design; Programming and planning; Librarians; Architects; Professions; Akademiska biblioteksbyggnader; Universitets- och högskolebibliotek; Arkitektur; Planering; Bibliotekarier; Arkitekter; Professioner; Library and information science; Biblioteks- och informationsvetenskap; Humaniora-samhällsvetenskap; Humanities and Social sciences; Academic library buildings; College and university libraries; Architecture and building; Programming and planning; Social fields; discourse analysis; Discourses; Professions; Librariarians; Architects; Architectural design;

   Sammanfattning : The purpose of the thesis is to investigate planning processes for academic library buildings and the outcomes of such processes. This is accomplished through a case study utilising discourse analysis. LÄS MER

4. 3. Långhus i Gene : teori och praktik i rekonstruktion

   Författare :Lena Edblom; Umeå universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; Archaeology; Reconstruction; longhouse; Early Iron Age; Central Norrland; furnishing; room functions; fire; seat of honour; Christianisation; Icelandic sagas; Icelandic construction techniques; Arkeologi; Archaeology subjects; Arkeologiämnen; Archaeology; arkeologi;

   Sammanfattning : Under åren 1977–89 bedrev arkeologiska institutionen vid Umeå universitet en forskningsundersökning av en boplats från äldre järnålder på Genesmon i Själevad socken, norra Ångermanland. Under åren 1991–99 rekonstruerades delar av gården i Gene fornby, ett hundratal meter därifrån. LÄS MER

5. 4. Operating Room Efficiency and Postoperative Recovery after Major Abdominal Surgery : The Surgical Team’s Efficiency and the Early Postoperative Recovery of Patients with Peritoneal Carcinomatosis

   Författare :Erebouni Arakelian; Haile Mahteme; Lena Gunningberg; Jan Larsson; Karin Norlén; Gun Nordström; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; efficiency; operating room; postoperative recovery; peritoneal carcinomatos; cytoreductive surgery; HIPEC;

   Sammanfattning : In selected patients, surgical treatments such as cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) have enabled curative treatment options for previously incurable diseases, such as peritoneal carcinomatosis (PC). The introduction of resource demanding surgery could affect the work process, efficiency, and productivity within a surgical department and factors influencing patient postoperative recovery processes may have an impact on the efficiency of patient care after major surgery. LÄS MER

7. 5. System Modeling Using Basis Functions and Application to Echo Cancelation

   Författare :Lester S.H. Ngia; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Laguerre filters; Gauss-Newton algorithms; Levenberg-Marquard algorithms; room acoustics; separable nonlinear least-squares; adaptive filtering; off-line estimation; echo cancelation; on-line estimation; system modeling; neural net filters; Kautz filters; loudspeaker systems; steepest-descent algorithms; Hammerstein models;

   Sammanfattning : This thesis concerns modeling of linear and nonlinear dynamic systems, where the applied models can be described by basis function expansions. In the first part of the thesis, the investigated model (or filter) structures and parameter estimation algorithms are described. LÄS MER