Sökning: "Artifacts"

Visar resultat 6 - 10 av 389 avhandlingar innehållade ordet Artifacts.

  1. 6. 3D Rotational Angiography of Transplanted Renal Arteries : A Clinical and Experimental Study

    Författare :Gaute Hagen; Anders Magnusson; Jonas Wadström; Jarl Jakobsen; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Radiology; Kidney; transplantation; renal angiography; renal arteries; stenosis or obstruction; imaging; three-dimensional; artifacts; Radiologisk forskning; Radiological research; Radiologisk forskning;

    Sammanfattning : Three-dimensional rotational angiography (3D-RA) is an established method within the field of interventional neuroradiology. The method has also a great potential in other areas with a complicated arterial anatomy. LÄS MER

  3. 7. Teknik - genomskinlig eller svart låda? : Att bruka, se och förstå teknik - en fråga om kunskap

    Författare :Jan Sjögren; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Artifacts; assertive knowledge; categories of knowledge; concept of technology; critical knowledge; everyday technology; inimate knowledge; mentality; practical skills; proficiency knowledge; subject of technology; understanding of technology; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Sammanfattning : Human history is to a great extent the history of people's relationship to artifacts and thereby to technology. This study is mainly concerned with the present-day situation of this interaction between people and technology, in a broad sense of the word. LÄS MER

  4. 8. On perfusion estimation using ultrasound

    Författare :Tomas Jansson; Avdelningen för Biomedicinsk teknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Instrumentation technology; Speckle; Artifacts; Perfusion; Ultrasound; Doppler; Mät- och instrumenteringsteknik;

    Sammanfattning : This thesis has the main focus on ways to improve the blood perfusion estimate, as obtained from a continuous wave Doppler system. Earlier studies have shown large temporal variations in the detected perfusion estimate, due to speckle. LÄS MER

  5. 9. Conventional spiral and low-dose computed mandibular tomography for dental implant planning

    Författare :Annika Ekestubbe; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Artifacts; Dental Implantation; Endosseous; methods; Dental Implants; Humans; Jaw; Edentulous; radiography; Mandible; radiography; Patient Care Planning; Phantoms; Imaging; Radiation Dosage; Radiography; Dental; methods; Reproducibility of Results; Tomography; X-Ray; instrumentation; methods; Tomography; X-Ray Computed; methods;

    Sammanfattning : Absorbed doses to radiosensitive organs in the head and neck from pre-implant conventional hypocycloidal, conventional spiral and computed tomography (CT) were measured with thermoluminescent dosimeters in an anthropomorphic phantom head. From conventional tomography organ doses, except to the major salivary glands, were below 0.2 mGy. LÄS MER

  7. 10. The Absent Meaning of Concrete Form in Theory of Architecture

    Författare :Cecilia Häggström; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HUMANIORA; HUMANITIES; body; aesthetic theory; architecture; practical knowledge; artifacts; environmental theory; building function; architectural theory; phenomenology; aesthetic theory;

    Sammanfattning : The aim of this dissertation is to discuss architecture as forming practical conditions for our way-of-being, and to clarify that which prevents traditional theory of architecture from dealing with these practical conditions as such. The dissertation investigates a theoretical problem concerning the nature of the relation between human being and the built environment. LÄS MER