Sökning: "screw press"

Hittade 3 avhandlingar innehållade orden screw press.

  1. 1. Mechanical Pulp. Effects of Pretreatment and Wood Source on Fiber Separation and Pulp Properties

    Författare :Lars Johansson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; torsional stress; pulp properties; chips; impregnation; screw press; SEM; mechanical pulp; sulfonation; shear stress; fracture surface; wood quality; temperature;

    Sammanfattning : The work presented in this thesis concerns the mechanical pulping process and the effects of wood source and pretreatment conditions on the pulp properties. In the first part, the deformation of Norway spruce (Picea abies) wood samples was investigated under shear and torsional loading at different temperatures (20-95°C) and sulfonation conditions. LÄS MER

  3. 2. The Uncemented Cup in Total Hip Arthroplasty : stability, Wear and Osteolysis

    Författare :Volker T C Otten; Sead Crnalic; Kjell G Nilsson; André Stark; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : Background: Artificial hip joint replacement has undergone tremendous development in the past 100 years. In the beginning, complications, such as infection and early loosening, were the rule rather than the exception. Today, complications of any sort are rare during the first decade after the operation. LÄS MER

  4. 3. Investigating the Feasibility of using Scandinavian Agricultural Side Streams for the Development of Novel High-Moisture Meat Analogues

    Författare :Izalin Zahari; Avdelningen för livsmedel och läkemedel; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; High-moisture extrusion HME ; meat analogues; plant-based meat; Scandinavian side-streams;

    Sammanfattning : Meat analogues are products that are supposed to resemble meat in terms of texture, flavour, and also sensory characteristics. They have recently become increasingly popular due to numerous issues related to health, religion, environmental impact and the growing number of vegetarians and vegans. LÄS MER