Sökning: "Maintenance performance measuring"

Visar resultat 21 - 24 av 24 avhandlingar innehållade orden Maintenance performance measuring.

1. 21. Realizing the systematic reuse of automated acceptance tests in practice

   Författare :Mohsin Irshad; Kai Petersen; Jürgen Börstler; Nauman Ali; Andy Zaidman; Blekinge Tekniska Högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Reuse; Software Engineering; Development; Testing; Programvaruteknik; Software Engineering;

   Sammanfattning : Context: Automated acceptance testing has become a relevant practice of agile software development (e.g., Extreme Programming). Automated acceptance tests (AATs) are closely tied to requirements and provide a mechanism for continuous validation of requirements as system-level tests. LÄS MER

3. 22. High Voltage DC-biased Oil Type Medium Frequency Transformer; A Green Solution for Series DC Wind Park Concept

   Författare :Mohammad Kharezy; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; High voltage DC; Insulation design; Offshore wind farm; Leakage inductance; High power isolated DC DC converter; Dual active bridge; Medium-frequency power transformer; Parasitic capacitance; HVDC;

   Sammanfattning : The electric energy generated by remote offshore wind parks is transported to the consumers using high voltage submarine cables. On the generation site, such transmissions are realized today by collecting the energy produced by several wind turbines in a bulky and expensive transformer placed on a dedicated platform. LÄS MER

4. 23. Diagnostics of Oil-Impregnated Paper Insulation Systems by Utilizing Lightning and Switching Transients

   Författare :Roya Nikjoo; Hans Edin; Christer Törnkvist; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Capacitance; Dielectric Response; Loss tangent; Moisture content; Oil - impregnated paper; Temperature; Transformer Bushing; Transients;

   Sammanfattning : Development of the power gridtowards a more reliable and smarter system requires frequent on-line monitoring of the power components. Power transformers and their bushings are particularly important components in a power transmission system and their insulation degradation may lead to catastrophic failures. LÄS MER

5. 24. Machine Learning-Based Bug Handling in Large-Scale Software Development

   Författare :Leif Jonsson; Kristian Sandahl; David Broman; Martin Shepperd; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; machine learning; bug reports; large scale software development;

   Sammanfattning : This thesis investigates the possibilities of automating parts of the bug handling process in large-scale software development organizations. The bug handling process is a large part of the mostly manual, and very costly, maintenance of software systems. LÄS MER