Search for dissertations about: "lighting phd"

Showing result 1 - 5 of 11 swedish dissertations containing the words lighting phd.

  2. 1. Lighting simulation for a more value-driven building design process

    Author : Anahita Davoodi; Thorbjörn Laike; Peter Johansson; Annika Moscati; Jönköping University; []
    Keywords : lighting simulation; lighting design; lighting quality; energy efficiency; perception;

    Abstract : Concerns about global warming are increasing, hence, the urgency to cut carbon emissions. Reducing energy consumption, including lighting energy, is seen as the primary solution. Yet, solving the environmental factor should not come at the cost of other pillars of sustainable development. READ MORE

  4. 2. Year-round production of forest seedlings under LED lamps : Biological and energetic implications of indoor cultivation

    Author : Marco Hernandez Velasco; Uwe Zimmermann; Anders Mattsson; Frank Fiedler; Johanna Riikonen; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Picea abies; Pinus sylvestris; year-round cultivation; forest seedlings; LED lamps; light quality; light quantity; daily light integral; adaptive lighting control; greenhouse integrated photovoltaics; agrivoltaics; seedling growth performance; short-day treatments; cold hardiness; light shock stress; Engineering Science; Teknisk fysik;

    Abstract : Year-round cultivation of forest seedlings under light emitting diodes (LED) is a technology receiving increased attention from nurseries in the boreal forest regions. In these areas, the climate is characterized by strong seasonal fluctuations, resulting in short vegetation periods with narrow time windows for seedling transplanting and outdoor growth. READ MORE

  5. 3. Lighting candles before a headless Jesus : sacred heritage, heritagized sacredness, and the many journeys between categories

    Author : Helena Wangefelt Ström; Anna Foka; Federico Barbierato; Sabina Brevaglieri; Umeå universitet; []
    Keywords : HUMANIORA; HUMANITIES; sacred heritage; religious heritage; heritage; heritagization; material religion; early modern Italy; early modern Rome; early modern Venice; collections; Catholic history; early modern travelers; religious conflict; post secularism; museums; museology; heritage studies; uses of heritage; religiöst kulturarv; sakralt kulturarv; kulturarv; kulturarvifiering; materiell kultur; materialitet; tidigmodern historia; tidigmoderna Italien; Rom; Venedig; samlingar; samlande; katolsk historia; postsekularism; museologi; kulturarvsstudier; museer; tidigmodernt resande; religionskonflikt; kulturarvsbruk; museology; museologi;

    Abstract : The overarching aim of this thesis, situated within Museology and Heritage Studies, is to investigate the different modes and devices of transfer between sacredness and heritage. The research question, 'What happens in the transfer between heritage and sacredness?', is investigated as production of sacred heritage in early modern Europe and specifically Sweden, Rome, and Venice (Part I), and as uses of the sacred as heritage in different times and contexts (Part II). READ MORE

  6. 4. Tunning Multicolor Light Emission in Lead-free Materials

    Author : Weidong Cai; Feng Gao; Jiajun Qin; Letian Dou; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Multicolor light emission; Chiral material; Color change under humidity; Lead-free organic and inorganic material; Incorporation of extra emission center; Leadfree double perovskite; Co-doping; Flerfärgad ljusemission; Kiralt material; Färgförändring under fukt; Blyfritt organiskt och oorganiskt material; Inkorporering av extra emissionscenter; Blyfri dubbel perovskit; Samdopning;

    Abstract : Perovskites are a class of compounds with the general formula ABX3 and becoming increasingly attractive recently. Because this kind of material possesses various advantages such as abundant raw materials, easy synthesis, excellent photoelectric properties, and short production process. READ MORE

  7. 5. Hot-wall MOCVD for advanced GaN HEMT structures and improved p-type doping

    Author : Alexis Papamichail; Vanya Darakchieva; Anelia Kakanakova-Gueorguieva; Jr-Tai Chen; Zlatko Sitar; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Hot-wall MOCVD; III-nitrides; p-type GaN; HEMTs; Linearity; High-Al barrier;

    Abstract : The transition to energy efficient smart grid and wireless communication with improved capacity require the development and optimization of next generation semiconductor technologies and electronic device components. Indium nitride (InN), gallium nitride (GaN) and aluminum nitride (AlN) compounds and their alloys are direct bandgap semiconductors with bandgap energies ranging from 0. READ MORE