Sökning: "Bottom-up and Top-down processing"

Visar resultat 1 - 5 av 12 avhandlingar innehållade orden Bottom-up and Top-down processing.

  1. 1. Age differences in arousal, perception of affective pictures, and emotional memory enhancement : Appraisal, Electrodermal activity, and Imaging data

    Författare :Joachim Gavazzeni; Håkan Fischer; Richard J. Davidson; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Aging; Affective function; subjective ratings; SCRs; FMRI; Pictures; Emotional memory enhancement; Bottom-up and Top-down processing; Psychology; Psykologi; psykologi; Psychology;

    Sammanfattning : In contrast to effortful cognitive functions, emotional functioning may remain stable or even be enhanced in older adults. It is unclear how affective functions in aging correspond to subjective experiences and physiological changes. LÄS MER

  3. 2. Visual Attention in Active Vision Systems : Attending, Classifying and Manipulating Objects

    Författare :Babak Rasolzadeh; Jan-Olof Eklundh; Ales Leonardis; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; visual attention; saliency map; compter vision; robotics; active vision; machine learning;

    Sammanfattning : This thesis has presented a computational model for the combination of bottom-up and top-down attentional mechanisms. Furthermore, the use for this model has been demonstrated in a variety of applications of machine and robotic vision. LÄS MER

  4. 3. Towards a sustainable road infrastructure in an age of digitization: opportunities and challenges

    Författare :Zhuhuan Liu; Nicole Kringos; Romain Balieu; Aikaterini (Katerina) Varveri; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Sustainable infrastructure; Pavement Maintenance; Optimization; Neutron tomography; Self-healing; Hållbar infrastruktur; Vägunderhåll; Optimering; Neutronavbildning; Självläkning; Structural Engineering and Bridges; Bro- och stålbyggnad;

    Sammanfattning : Pavement system plays an indispensable role in the socio-economic and sustainable development of every modern society. Yet, pavement construction and maintenance is also responsible for a significant fraction of the GHG emissions from the whole transport sector. LÄS MER

  5. 4. Energy efficiency and the challenge of climate change - Studies of the Swedish building sector

    Författare :Jonas Nässén; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; technology diffusion; input-output analysis; Energy efficiency; Swedish building sector; carbon dioxide;

    Sammanfattning : The interrelated environmental, social and economic challenges imposed by global climate change will make it one of the central political issues in the coming century. Use of fossil fuels is the largest source of anthropogenic CO2 emissions and hence the transformation of the energy system plays a central role in the mitigation of future climate change. LÄS MER

  7. 5. Semiconductor Nanowires: Epitaxy and Applications

    Författare :Thomas Mårtensson; Fasta tillståndets fysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; semiconductor; nanotechnology; nanowires; crystal growth; metal-organic vapour phase epitaxy; III-V; silicon; MOVPE; light-emitting diode; single-electron transistor; cell;

    Sammanfattning : Semiconductor nanowires are nanoscale objects formed by bottom-up synthesis. In recent years their unique properties have been exploited in fields such as electronics, photonics, sensors and the life sciences. In this work, the epitaxial growth of nanowires and their applications were studied. LÄS MER