Sökning: "Performance problems"

Visar resultat 21 - 25 av 1661 avhandlingar innehållade orden Performance problems.

  1. 21. Performance Optimization Techniques and Tools for Data-Intensive Computation Platforms : An Overview of Performance Limitations in Big Data Systems and Proposed Optimizations

    Författare :Vasiliki Kalavri; Vladimir Vlassov; Alberto Montresor; KTH; []
    Nyckelord :performance optimization; data-intensive computing; big data; Informations- och kommunikationsteknik; Information and Communication Technology;

    Sammanfattning : Big data processing has recently gained a lot of attention both from academia and industry. The term refers to tools, methods, techniques and frameworks built to collect, store, process and analyze massive amounts of data. Big data can be structured, unstructured or semi-structured. LÄS MER

  3. 22. Adaptive time-integration for goal-oriented and coupled problems

    Författare :Peter Meisrimel; Numerisk analys; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; time-adaptivity; goal-oriented problems; error estimation; coupled problems; waveform relaxation; asynchronous methods; conjugate heat transfer;

    Sammanfattning : We consider efficient methods for the partitioned time-integration of multiphysics problems, which commonly exhibit a multiscale behavior, requiring independent time-grids. Examples are fluid structure interaction in e.g., the simulation of blood-flow or cooling of rocket engines, or ocean-atmosphere-vegetation interaction. LÄS MER

  4. 23. Data Access Techniques for Enhanced Energy Efficiency and Performance in In-order Pipelines

    Författare :Alen Bardizbanyan; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Data Cache; Pipeline; Energy Efficiency; Data Access; Performance;

    Sammanfattning : Energy efficiency is one of the key metrics in the design of a widerange of processor types. For example, battery powered devices, whichare growing in numbers every day, require energy efficient processorsto be able to operate for a useful period of time. LÄS MER

  5. 24. Pilot Production and Manufacturing Start-up in the Automotive Industry. Principles for Improved Performance

    Författare :Henrik Almgren; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; disturbance control; performance; verification; manufacturing start-up; learning; pilot production; Swedish automotive industry; product and production preparation;

    Sammanfattning : The dissertation is based on experiences from Volvo Car Corporation and examines pilot production and manufacturing start-up, processes that are here combined under the rubric final verification of product and production system. The purpose of this dissertation is to study pilot production and manufacturing start-up in order, first, to identify and analyze factors affecting final verification performance and, secondly, to develop general principles for how final verification performance can be improved. LÄS MER

  7. 25. Contemporary aspects of health and performance among young adult women and men in Sweden

    Författare :Jesper Löve; Göteborgs universitet; []
    Nyckelord :stress; young adults; gender; work ability; performance; sickness presenteeism; individualization; grounded theory; anxiety; womens health; modern society; health; well-being;

    Sammanfattning : The overall aim of this thesis was to improve our understanding of contemporary aspects of health and performance among young adult women and men in Sweden. Cultural and structural changes in society have resulted in new environmental conditions, which in turn give rise to new potential health hazards. LÄS MER