Sökning: "non-uniform"

Visar resultat 1 - 5 av 181 avhandlingar innehållade ordet non-uniform.

  1. 1. Non-Uniform Sampling in Statistical Signal Processing

    Författare :Frida Eng; Fredrik Gustafsson; Paulo Ferreira; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; signal processing; sampling; stochastic analysis; frequency transform; Automatic control; Reglerteknik;

    Sammanfattning : Non-uniform sampling comes natural in many applications, due to for example imperfect sensors, mismatched clocks or event-triggered phenomena. Examples can be found in automotive industry and data communication as well as medicine and astronomy. LÄS MER

  3. 2. Multithreaded PDE Solvers on Non-Uniform Memory Architectures

    Författare :Markus Nordén; Michael Thuné; Sverker Holmgren; Xing Cai; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; PDE solver; high-performance; NUMA; UMA; OpenMP; MPI; data migration; data replication; thread scheduling; data affinity; Beräkningsvetenskap; Scientific Computing;

    Sammanfattning : A trend in parallel computer architecture is that systems with a large shared memory are becoming more and more popular. A shared memory system can be either a uniform memory architecture (UMA) or a cache coherent non-uniform memory architecture (cc-NUMA). LÄS MER

  4. 3. Contaminant transport in non-uniform streams and streambeds

    Författare :Jonas K. Forsman; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Sub-surface transient storage; reactive tracers; analytical solutions; Geovetenskap; Earth sciences; Geovetenskap; Sedimentology; sedimentologi;

    Sammanfattning : The interplay between hydraulic and chemical processes in streams and adjacent storage zones, e.g. streambed sediments, is of crucial importance for the large-scale transport of released contaminants. This thesis presents a methodology for tracer experiments and the development of mechanistic transport models. LÄS MER

  5. 4. Elektriska flickor och mekaniska pojkar : Om gruppskillnader på prov - en metodutveckling och en studie av skillnader mellan flickor och pojkar på centrala prov i fysik

    Författare :Kristian Ramstedt; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Differential item functioning; DIF; Mantel-Haenszel; polytomous; non-uniform; item bias; purification; P-SIBTEST; physics; electricity; mechanics; gender;

    Sammanfattning : This dissertation served two purposes. The first was to develop a method of detecting differential item functioning (DIF) within tests containing both dichotomously and polytomously scored items. LÄS MER

  7. 5. Through air drying : The influence of formation and pulp type on non-uniform drying and air flow

    Författare :Aron Tysén; Christophe Barbier; Lars Nilsson; Hannes Vomhoff; Stig Stenström; Karlstads universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Drying; Dewatering; Water removal; Moisture; Non-uniformity; Variability; Tissue; TAD; Through air drying; Thermography; Formation; Pulp; Chemical Engineering; Kemiteknik;

    Sammanfattning : The removal of water is an integral part of tissue paper production. Through air drying (TAD) is used for water removal when producing premium tissue grade products, however, at the price of higher energy demand. A better understanding of TAD may therefore lower the energy demand. LÄS MER