Sökning: "process measurement"

Visar resultat 11 - 15 av 962 avhandlingar innehållade orden process measurement.

1. 11. On the wood chipping process : a study on basic mechanisms in order to optimize chip properties for pulping

   Författare :Lisbeth Hellström; Torbjörn Carlberg; Per Engstrand; Sören Östlund; Mittuniversitetet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wood chipping; Chip formation; Digital Speckle Photography; Friction; Fracture Processes; Analytical model; Laboratory Wood Chipper; Force Measurement; Vibration Synthesis; Energy Efficiency; Chip Damage; TMP; CTMP; Cellulose and paper engineering; Cellulosa- och pappersteknik;

   Sammanfattning : In both the chemical and mechanical pulping process, the logs are cut into wood chips by a disc chipper before fibre separation. To make the wood chipping process more efficient, one have to investigate in detail the coupling between process parameters and the quality of the chips. LÄS MER

3. 12. Stochastic Models in Phylogenetic Comparative Methods: Analytical Properties and Parameter Estimation

   Författare :Krzysztof Bartoszek; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Adaptation; Adaptation; Birth-death process; Branching diffusion; Brownian motions; Conditioned branching process; Evolution; General Linear Model; Hybridization; Macroevolution; Measurement error; Multivariate phylogenetic comparative method; Optimality; Ornstein-Uhlenbeck process; Phyletic gradualism; Phylogenetic inertia; Phylogenetic uncertainty; Punctuated equilibrium; Yule tree; Macroevolution;

   Sammanfattning : Phylogenetic comparative methods are well established tools for using inter-species variation to analyse phenotypic evolution and adaptation. They are generally hampered, however, by predominantly univariate approaches and failure to include uncertainty and measurement error in the phylogeny as well as the measured traits. LÄS MER

4. 13. Optical Diagnostics for Quantitative Potassium Chemistry in Biomass Thermochemical Conversion Processes

   Författare :Wubin Weng; Förbränningsfysik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Optical diagnostics; Quantitative measurement; TDLAS; Sulfation; Biomass; UV absorption spectroscopy; TLAF; Potassium chemistry;

   Sammanfattning : Biomass is an essential sustainable and carbon-neutral energy source. Through thermochemical conversion processes, such as combustion and gasification, biomass can generally be used in boilers to provide heat and/or power. Biomass fuels contain varying amounts of potassium, chlorine and sulfur. LÄS MER

5. 14. Suitability in law enforcement : Assessing multifaceted selection criteria

   Författare :Miguel Inzunza; Christina Wikström; Tova Stenlund; Jan-Eric Gustafsson; Umeå universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; selection criteria; measurement; empathy; self-report instrument; validity; interpersonal qualities; didactics of educational measurement; beteendevetenskapliga mätningar;

   Sammanfattning : When selecting applicants for professions with job descriptions involving complex human interaction, identifying suitable candidates is essential. This strongly applies in police selection, because police officers must act appropriately at all times, deal with difficult and sometimes dangerous work situations, and come into contact with people who are in highly emotional states, such as anxiety, fear, excitement, and shock. LÄS MER

7. 15. Towards Bridging the Gap Between Strategy and Operations - A Process Based Framework

   Författare :Dag Näslund; Teknisk logistik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Logistics; Strategy; Operations; Organizational Change; Middle Manager; Teknik; Technological sciences; Process;

   Sammanfattning : This dissertation is about bridging the gap between strategy and operations in organizations. To bridge that gap, processes are viewed not only from an operational perspective but also from conceptual, as well as a hierarchical perspectives. LÄS MER