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Visar resultat 16 - 20 av 80 avhandlingar som matchar ovanstående sökkriterier.

  1. 16. PCR inhibition mechanisms in forensic DNA analysis

    Författare :Maja Sidstedt; Teknisk mikrobiologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; PCR inhibition mechanisms; Real-time PCR; Digital PCR; Massively parallel sequencing;

    Sammanfattning : In forensic DNA analysis, the polymerase chain reaction (PCR) enables DNAanalysis of minute biological crime scene traces. PCR is an enzymatic reaction for amplification of specific DNA fragments involving both biochemical andbiophysical processes. The main analytical challenge is posed by the nature of the samples of interest. LÄS MER

  3. 17. Performance problem diagnosis in cloud infrastructures

    Författare :Olumuyiwa Ibidunmoye; Erik Elmroth; Guilliano Casale; Viktoria Fodor; Henrik Björklund; Umeå universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Systems Performance; Performance anomalies; Performance bottlenecks; Cloud infrastructures; Cloud Computing; Cloud Services; Cloud Computing Performance; Performance problems; Performance anomaly detection; Performance bottleneck identification; Performance Root-cause Analysis; Computer Systems; datorteknik; Computer Science; datalogi;

    Sammanfattning : Cloud datacenters comprise hundreds or thousands of disparate application services, each having stringent performance and availability requirements, sharing a finite set of heterogeneous hardware and software resources. The implication of such complex environment is that the occurrence of performance problems, such as slow application response and unplanned downtimes, has become a norm rather than exception resulting in decreased revenue, damaged reputation, and huge human-effort in diagnosis. LÄS MER

  4. 18. Demand Estimation and Bottleneck Management Using Heterogeneous Traffic Data

    Författare :Athina Tympakianaki; Harilaos Koutsopoulos; Shlomo Bekhor; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Transportvetenskap; Transport Science;

    Sammanfattning : Congestion on urban and freeway networks has become a major problem, leading to increased travel times and reduced traffic safety. In order to suggest traffic management solutions to improve the transport system efficiency, it is important to capture the travel demand patterns, expressed as origin-destination (OD) matrices, and understand the mechanisms of traffic bottlenecks. LÄS MER

  5. 19. Mine production index: Development and application

    Författare :Amol Lanke; Javad Barabady; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Production Assurance program PAP ; Fuzzy analytical hierarchy process FAHP ; Mine production assurance MPA ; Bottleneck detection; Mine production index MPi ; Mining; Drift och underhållsteknik; Operation and Maintenance Engineering;

    Sammanfattning : Assuring production forms a crucial part of mining business profitability. Factors related to various mine operations, activities and business processes can threaten required/planned mine production. To address problems and ensure production level in mining, it is necessary to implement a mine production assurance program (MPA). LÄS MER

  7. 20. Framework for Estimating Congestion performance measures : from data collection to reliability analysis: case study of Stockholm

    Författare :Carlos A. Morán Toledo; Karl-Lennart Bång; Muriel Beser Hugosson; KTH; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP;

    Sammanfattning : For operational and planning purposes it is important to observe and predict the traffic performance of congested urban road links and networks. Congestion can be defined as traffic conditions caused by a downstream bottleneck or excess in travel time from what is incurred during light or free-flow travel conditions. LÄS MER