Sökning: "SSM I"

Visar resultat 1 - 5 av 18 avhandlingar innehållade orden SSM I.

  1. 1. Microwave remote sensing of arctic sea ice during freeze-up using radar and passive radiometry

    Författare :Mats I. Pettersson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; modelling; classification; SAR and SSM I; remote sensing; sea ice; microwave; radar backscattering;

    Sammanfattning : .... LÄS MER

  3. 2. Contribution to Wideband SAR Space-Time Processing, and Radar Remote Sensing of Sea Ice

    Författare :Mats I. Pettersson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAR; clutter suppression; space time adaptive processing; backprojection; remote sensing; moving target detection; radar scattering; Antenna array; wide band; sea ice;

    Sammanfattning : Synthetic Aperture Radar (SAR) has the capability to map the Earth with high resolution and is used in both civilian and military applications. The development of SAR systems is going towards higher resolution. Today there are Wide Band (WB) SAR instruments that have a resolution actually smaller than the operating wavelength. LÄS MER

  4. 3. Investigations on the Formation of Defect Bands in Semi-Solid High Pressure Die Cast Aluminium-Silicon Alloys

    Författare :Madeleine Law; Pär Jönsson; Christopher Hulme-Smith; Taishi Matsushita; Jessica Elfsberg; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Semi-Solid Metals; SSM; Al-Si Alloys; Defect bands; HPDC; Semisolida metaller; SSM; Al-Si-Alloys; defektband; HPDC; Metallurgical process science; Metallurgisk processvetenskap;

    Sammanfattning : High-pressure die casting of semi-solid aluminium-silicon alloys is used in the automotive industry to manufacture components, like housings, brackets, and bars. It is commonly known that during high-pressure die casting, defect bands may be created that follow the contour of the component surface. These bands consist mainly of a eutectic phase. LÄS MER

  5. 4. Malignant Melanoma in southern Sweden; Histopathology, Prognosis and Aetiology

    Författare :Anna Måsbäck; Tumörmikromiljö; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; General pathology; pathological anatomy; Patologi allmän ; patologisk anatomi; constitutional factors.; ulceration; tumour thickness; mutation; CDKN2A; aetiology; epidemiology; prognosis; survival; Malignant melanoma; histopathology;

    Sammanfattning : The purpose was to study the prognostic and aetiologic risk factors for melanoma in correlation to histopathology. Paper 1-3: Thin tumours (... LÄS MER

  7. 5. Sea Ice and Ocean Environmental Applications of Spaceborn SAR

    Författare :Sverre Thune Dokken; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Radarsat; SSM I; ERS-1 2; ocean applications; sea ice applications; numerical models; SAR; Arctic Ocean; Envisat; climate change;

    Sammanfattning : The worldwide focus on our changing environment has led to an increased need to observe and characterise a range of environmental phenomena. The Arctic Ocean is particularly sensitive to climate variations. LÄS MER