Essays about: "fracture system"

Showing result 1 - 5 of 29 essays containing the words fracture system.

  1. 1. Groundwater flow paths in fractured crystalline bedrock : Electromagnetic VLF measurements and modelling of a groundwater basin in Svanberga, Sweden

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Rasmus Thunell; [2018]
    Keywords : Groundwater; modelling; geophysics; comsol; VLF;

    Abstract : Sweden is a country with a relatively high number of private wells, where about 1.2 million inhabitants in permanent housing and an equal amount in summer housing relies on private wells as their drinking water supply. At the same time the market for drinking water treatment products is unregulated regarding quality and requirements are needed. READ MORE

  2. 2. The Use of Post and Core in Public and Private Swedish Dental Care : A Questionnaire Study

    University essay from Umeå universitet/Institutionen för odontologi; Umeå universitet/Institutionen för odontologi

    Author : Yasmin Said; Doaa Sahib; [2018]
    Keywords : dental; post; core; survival;

    Abstract : Post and core-systems are common techniques in oral rehabilitation of teeth with inadequate structure which do not allow using of the traditional restorations. Many factors can affect the treatments’ success and survival rate. READ MORE

  3. 3. Flow Paths in the Húsmúli Reinjection Zone, Iceland

    University essay from Uppsala universitet/Luft-, vatten och landskapslära

    Author : Sigrún Tómasdóttir; [2018]
    Keywords : Húsmúli; Hellisheiði Power Plant; geothermal reinjection; tracer tests; numerical modeling; Húsmúli; Hellisheiði kraftverk; geotermisk injektion; spårtest; numerisk modellering;

    Abstract : Reinjection of spent geothermal fluids has become common practise in geothermal power plants. Reinjection can, despite being mostly beneficial, have unwanted effects such as cooling of nearby production wells and injection-induced earthquakes. READ MORE

  4. 4. Mechanical properties of bulk alloys and cemented carbides

    University essay from KTH/Materialvetenskap

    Author : Alexander Engman; [2018]
    Keywords : ICME; Cemented carbides; Cobalt;

    Abstract : The usage of cobalt (Co) as binder phase material in cemented carbides has been questioned becauseof the potential health hazards associated with cobalt particle inhalation. Cobalt is used because ofits excellent adhesive and wetting properties, combined with adequate mechanical properties. READ MORE

  5. 5. An Attempt Towards FE-Modelling of Fracture Propagation in Railway Wheels

    University essay from KTH/Spårfordon

    Author : Fred Öhnander; [2018]
    Keywords : Railway wheel; Wheel-rail contact; Wear; Fracture initiation; Physical fracture propagation model; FE-model; Fracture mechanics; XFEM; Inclusion; Järnvägshjul; Hjul-räl-kontakt; Slitage; Sprickinitiering; Fysisk sprickbildningsmodell; FE-modell; Frakturmekanik; XFEM; Imperfektion;

    Abstract : The demand for higher velocities and heavier axle loads for freight trains leads to higher forces on the railway wheels which in turn lead to an increase in stresses on and below the surface of the wheel-rail contact. By time, this induces wear on the wheels which consequently lead to higher maintenance costs and in some cases accidents. READ MORE