Sökning: "TCE"

Visar resultat 1 - 5 av 8 avhandlingar innehållade ordet TCE.

  1. 1. Application of two dimensional compound specific carbon-chlorine isotope analyses for degradation monitoring and assessment of organic pollutants in contaminated soil and groundwater

    Författare :Charline Wiegert; Örjan Gustafsson; Thomas Hofstetter; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; organochlorines; chlorinated ethenes; PCE; TCE; hexachlorocyclohexanes; soil contamination; groundwater contamination; remediation; natural attenuation; biodegradation; carbon isotopes; chlorine isotopes; CSIA; Applied Environmental Science; tillämpad miljövetenskap;

    Sammanfattning : Nearly 250,000 sites with past and present potentially polluting activities need urgent remediation within Europe. Major pollutants include organochlorines (OCls), e.g. chlorinated ethenes (CEs) and hexachlorocyclohexanes (HCHs), mainly used as industrial solvents and pesticides, respectively. LÄS MER

  3. 2. Contractors in Green Construction: Relationships to Suppliers and Developers

    Författare :Shahin Mokhlesian; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; contractor-supplier relationship; relational capability; partnering; innovation; purchasing; vertically-integrated developer; TCE; green construction;

    Sammanfattning : Introduction of green changes in different stages of a construction project are reflected in construction processes and products, and in the relationship between contractors and other firms and consequently in the business model of contractors. The aim of this thesis is to understand and analyse contractors’ collaboration practices with suppliers and clients in green construction projects and processes, and see if there are differences in how contractors collaborate with their clients and suppliers as a result of engaging in green construction. LÄS MER

  4. 3. Diffusion, Swelling and Mechanical Properties of Polymers

    Författare :Janis Ritums; KTH; []
    Nyckelord :diffusion; swelling; mechanical properties; polymers;

    Sammanfattning : Polymers capability to withstand harmful interactions withdifferent environments can be determined by looking at thetransport and mechanical properties of the material exposed tothe medium. The diffusion of a penetrant in a polymer and itsswelling characteristics can be verified by a simplesorption-desorption experiment followed by methodical analysisof the data. LÄS MER

  5. 4. Efficient governance of construction projects through cooperative procurement procedures

    Författare :Per-Erik Eriksson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Entreprenörskap och innovation; Entrepreneurship and Innovation;

    Sammanfattning : The purpose of this research is to increase the understanding of how efficient governance of construction projects can be achieved through appropriate procurement procedures. In this PhD project, literature reviews, a pre-study, a longitudinal case study and a survey study have been conducted in order to investigate five research questions and thereby fulfil the research purpose. LÄS MER

  7. 5. From data to decision : a case study of controversies in cancer risk assessment

    Författare :Christina Rudén; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Risk assessments serve as the foundation of policy decisions on whether to take measures to reduce a risk or not. However, different risk assessors frequently come to divergent estimates of the magnitude and even the nature of risks. Few attempts has been made in the past to describe and understand the reasons for these differences. LÄS MER