Sökning: "Malm?? University."

Visar resultat 6 - 10 av 14 avhandlingar innehållade orden Malm?? University..

  1. 6. Fragmentation and waste rock compaction in small-scale confined blasting

    Författare :Daniel Johansson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mining and Rock Engineering; Gruv- och berganläggningsteknik;

    Sammanfattning : Sub-level caving (SLC) is an important mass mining method, used at LKAB e.g. The caved rock or debris at the SLC interface reduces the fragmentation and the swelling of the blasted ring and it dissipates the explosive energy. These phenomena may immobilize the blasted ring, causing ore losses. LÄS MER

  3. 7. Neighborhoods without community : collective efficacy and crime in Malmö, Sweden

    Författare :Manne Gerell; Malmö högskola; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; crime; collective efficacy; geography;

    Sammanfattning : Brottslighet i utsatta bostadsområden har de senaste åren fått stort utrymme i samhällsdebatten. Polisen har börjat sammanställa nationella listor över de bostadsområden i Sverige som anses präglas av kriminella nätverk, samtidigt har media rapporterat att vissa brott, främst skjutningar och bilbränder, är betydligt vanligare i dessa områden än i andra delar av samhället. LÄS MER

  4. 8. Women, smoking and myocardial infarction

    Författare :Ellis Janzon; Kardiovaskulär forskning - epidemiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; epidemiology; Medicine human and vertebrates ; Smoking cessation; Smoking; risk; Prevention; Trends; Myocardial infarction; Women; epidemiologi; Folkhälsa; Public health; Medicin människa och djur ; Blood pressure; Women;

    Sammanfattning : The aim of this thesis has been to explore factors associated with smoking and smoking cessation in women and the relation between smoking and incidence of myocardial infarction (MI). The time trends in incidence of MI 1986-2002 in the city of Malmö (pop. 250.000) were explored. LÄS MER

  5. 9. Effects of confinement and initiation delay on fragmentation and waste rock compaction : Results from small scale tests

    Författare :Daniel Johansson; Gideon Chitombo; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mining and Rock Engineering; Gruv- och Berganläggningsteknik;

    Sammanfattning : Sub-level caving (SLC) is classified as a mass mining method and there is an increasing interest in its application worldwide and in a very wide range of geotechnical environments. Design of sub-level blasting rounds and optimization has become more important now when the sizes of the blasting rings have become larger. LÄS MER

  7. 10. Footwall stability in SLC mining

    Författare :Mikael Svartsjaern; David Saiang; Andreas Eitzenberger; Doug Stead; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mining and Rock Engineering; Gruv- och Berganläggningsteknik;

    Sammanfattning : This thesis is based on a case study of the Kiirunavaara sublevel cave (SLC) mine. It focuses on footwall stability and damage development in the mining infrastructure on mine scale. Damage to the infrastructure is mappable for the full height of the footwall by access through decommissioned infrastructure associated with earlier mining stages. LÄS MER