Sökning: "Alf Andersson"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden Alf Andersson.

1. 1. Macro-Geometric Defects, A numerical and experimental study of springback and surface defects

   Författare :Alf Andersson; Industriell Produktion; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Simulation; Sheet-metal forming; Finite element analysis; Information exchange; Springback; Surface defects; Drawbead; Process analyse; Optimisation; materialteknik; Materiallära; Material technology;

   Sammanfattning : Today, shortened lead-times in the automotive industry have dramatically increased the need for more efficient development methods at every stage of the process development chain. In order to decrease the long lead-time for producing a forming tool, sheet-metal-forming simulation was introduced. LÄS MER

3. 2. Use of FE-analysis for predicting and verifying the design of an automotive component forming process with special regard to macro geometric defects

   Författare :Alf Andersson; Industriell Produktion; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; information exchange; sheet-metal forminA simulation finite element analysis; springback surface defects Classflcation system and or Index term If any ;

   Sammanfattning : This thesis includes four appended papers. The thesis describes the challenges and advantages of the use of FE-analysis in the design of a component forming process in the automotive industry. LÄS MER

4. 3. Artificial Earth : On the Genealogy of Planetary Technicity

   Författare :Daniel Andersson; Jonas Anshelm; Johan Hedrén; Alf Hornborg; Linköpings universitet; []
   Nyckelord :HUMANIORA; HUMANITIES;

   Sammanfattning : As technology transforms the conditions by which we come understand and interact with the world around us, it is relevant to ask questions about the historicalontological aspects of these patterns of change. The widespread adoption of the term “Anthropocene” during the last twenty years indicates the wide acceptance of the view that human activities have become such a powerful driving force for global environmental change that our destructive legacy will be recorded in geological history. LÄS MER

5. 4. EMG and strength in trunk and hip muscles

   Författare :Eva A Andersson; Alf Thorstensson; Margareta Nordin; Gymnastik- och idrottshögskolan; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Neurophysiology; Neurofysiologi; abdominal muscles; biomechanics; electromyography; erector spinae; iliacus; iliopsoas; hip flexor muscles; locomotion; motor control; normalization; posture; psoas; quadratus lumborum; rehabilitation; running; sit-ups; strength; training exercises; u;

   Sammanfattning : The overall aim of this thesis was to study the myouelectric activity of all major muscles involved in the movements and stabilization of the trunk, pelvis and hips during training exercises, postures, motor tasks, maximal strength performance and locomotion. By use of ultra-sound, EMG electrodes could be guided safely and accurately into muscles situated even close to the spinal column, such as psoas, quadratus lumborum and deep parts of erector spinae. LÄS MER

7. 5. Det reglerade undantaget : högerns jordbrukspolitik 1904-2004

   Författare :Fredrik Eriksson; Alf W. Johansson; Torbjörn Nilsson; Lars I. Andersson; Stockholms universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; Allmänna valmansförbundet; Högerpartiet; Högern; Moderata samlingspartiet; Moderaterna; Jordbrukspolitik; Jordbruk; History subjects; Historieämnen;

   Sammanfattning : Agricultural policy and protectionism were major forces behind the foundation of the Swedish Conservative Party (AVF, later Högerpartiet and now Moderata samlingspartiet). Agriculture was seen as a traditional way of life and as such agriculture was deemed important enough to be protected by tariffs. LÄS MER