Sökning: "nova"

Visar resultat 1 - 5 av 69 avhandlingar innehållade ordet nova.

  1. 1. Deactivation of emission control catalysts for heavy-duty vehicles : Impact of biofuel and lube oil-derived contaminants

    Författare :Sandra Dahlin; Lars Pettersson; Isabella Nova; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NH3-SCR; Cu-SSZ-13; V2O5-WO3 TiO2; catalyst deactivation; diesel oxidation catalyst; sulfur; phosphorus; biodiesel; heavy-duty; emission control; regeneration; alkali metals; NH3-SCR; Cu-SSZ-13; V2O5-WO3 TiO2; katalysatordeaktivering; dieseloxidationskatalysator; svavel; fosfor; biodiesel; tunga dieselmotorer; avgasrening; regenerering; alkalimetaller; Chemical Engineering; Kemiteknik;

    Sammanfattning : Catalytic emission control is used to reduce the negative impact of pollutants from diesel exhausts on our health and on the environment. For a heavy-duty truck, such a system consists of a diesel oxidation catalyst (DOC), a diesel particulate filter (DPF), a selective catalytic reduction (SCR) catalyst, and an ammonia slip catalyst (ASC). LÄS MER

  3. 2. A study of Nova DK Lacertae

    Författare :Gunnar Larsson-Leander; Stockholms högskola; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  4. 3. A Nova Poética da natureza de Gary Snyder : budismo e ecocrítica na sua obra

    Författare :Nuno Marques; Margarida Vale de Gato; Environmental Humanities Laboratory; []
    Nyckelord :HUMANITIES; HUMANIORA; HUMANIORA; HUMANITIES;

    Sammanfattning : This thesis presents the work of the poet Gary Snyder (1930) to the Portuguese academia in order to clearly state its original and unique place among North-American poetry. It is divided in three chapters that determine the three different grounds of the author’s syncretism. LÄS MER

  5. 4. A Landscape of Left-Overs : Changing Conceptions of Place and Environment among Mi'kmaq Indians of Eastern Canada

    Författare :Anne-Christine Hornborg; Religionshistoria och religionsbeteendevetenskap; []
    Nyckelord :HUMANIORA; HUMANITIES; animism; traditional ecological knowledge; biocentrism; ecological ethics; environmental relations; being-in-the-world; lifeworlds; phenomenology; power; oral tradition; Kluskap; culture hero; tradition; Canada; Mi’kmaq Indians; Nova Scotia; sacred places; landscape; nature vs. culture; Cultural anthropology; ethnology; Kulturantropologi; etnologi; Canadian Mi kmaq Indians; SOCIAL SCIENCES;

    Sammanfattning : This dissertation seeks to explore historical changes in the lifeworld of the Mi’kmaq Indians of Eastern Canada. The Mi’kmaq culture hero Kluskap here serves as a key persona in discussing issues such as traditions, changing conceptions of land, and human-environmental relations. LÄS MER

  7. 5. Diagnosis in evolvable production systems

    Författare :Luis Ribeiro; José António Barata de Oliveira; Svetan Marin Ratchev; Carlos Eduardo Pereira; Portugal Universidade Nova de Lisboa Faculdade de Ciências e Tecnologia; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Esta tese aborda a problem�tica da execu��o de diagn�stico em instala��es industriais complexas que s�o compostas por um elevado n�mero de componentes que interagem entre si no �mbito do processo de produ��o.Apesar da abordagem apresentada ao problema ser geral e aplic�vel a v�rias classes de sistemas ligados em rede, o dom�nio dos Sistemas Evolutivos de Produ��o e os Sistemas Evolutions de Assembly (EPS/EAS) � utilizado como a base sobre a qual o sistema de diagn�stico proposto � implementado. LÄS MER