Sökning: "Productivity Enhancement"

Visar resultat 1 - 5 av 14 avhandlingar innehållade orden Productivity Enhancement.

1. 1. Effects of enhanced ultraviolet-B radiation on subarctic ecosystems

   Författare :Carola Gehrke; Biologiska institutionen; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; pigmentation; photosynthesis; dark respiration; shoot morphology; shoot growth; phanerogams ; species composition cryptogams; productivity; decomposition; dwarf shrubs; bryophytes; peatland ecosystem; heath ecosystem; UV-B; ozone depletion; Plant ecology; Växtekologi;

   Sammanfattning : Biologically harmful ultraviolet-B radiation (UV-B, 280-320 nm) is increasing at the Earth´s surface owing to stratospheric ozone depletion. This is of global concern due to potential impacts of enhanced UV-B radiation on the biosphere. LÄS MER

3. 2. Discrete Event Simulation -present situation and future potential

   Författare :Björn Johansson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Discrete Event Simulation; Productivity development; Performance enhancement;

   Sammanfattning : This thesis focuses on Discrete Event Simulation as a time saver, applied to manufacturing industries in order to increase performance, productivity, and profitability throughout their conducted processes.The thesis provides a base for implementation and more effective use of Discrete Event Simulation in manufacturing systems by applying Discrete Event Simulation technology through an overall performance aspect. LÄS MER

4. 3. Ultrasonic testing of components produced with additive manufacturing : Towards improved detection and classification of defects

   Författare :Mikael Sahl; Håkan Wirdelius; Erik Lindgren; Oskar Tofeldt; Madis Ratassepp; Högskolan Väst; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Non-Destructive Testing NDT ; Super alloys; Microstructure; Ultrasonic Testing UT ; Productivity Enhancement; Production Technology; Produktionsteknik;

   Sammanfattning : The focus in this work is on the use of ultrasonic testing as a method for inspecting components manufactured through additive manufacturing (AM) processes. The research is rooted in the need for effective non-destructive testingtechniques that can adapt to the unique challenges posed by AM-produced materials, including complex defect geometries and surface conditions. LÄS MER

5. 4. Investigating the effect of extending powder particle size distribution of Ti-6Al-4V produced by powder bed fusion laser beam process : Influence of process parameters on material integrity

   Författare :Linda Squillaci; Magnus Neikter; Ru Peng; Högskolan Väst; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Powder Bed Fusion Laser Beam PBF-LB ; Ti-6Al-4V; Microstructure; Particle Size Distribution PSD ; Productivity Enhancement; Pulverbädd additiv tillverkning PBF-LB M ; Ti-6Al-4V; Mikrostruktur; Pulverpartikelstorleksfördelning; Produktivitetsförbättring; Production Technology; Produktionsteknik;

   Sammanfattning : This thesis focuses on the topic of PBF-LB applied to titanium alloys. Of allalloys, an α + β is chosen, named Ti-6Al-4V. The selection of this particular alloy is driven by its current widespread use in many industrial applications where high strength coupled with low density are both desirable properties. LÄS MER

7. 5. Biophysical and Human Controls of Land Productivity under Global Change : Development and Demonstration of Parsimonious Modelling Techniques

   Författare :Florian Sallaba; Institutionen för naturgeografi och ekosystemvetenskap; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Ecosystem Modelling; Meta-modelling; Net Primary Production; Global Change; Model coupling;

   Sammanfattning : Net primary production (NPP) serves as an indicator for plant-based resources such as food, timber and biofuel for human appropriation. It is defined by the annual production of plant matter and is mainly controlled by climate and human activities. Climate change in combination with human activities is altering NPP. LÄS MER