Sökning: "3D US"

Visar resultat 16 - 20 av 96 avhandlingar innehållade orden 3D US.

  1. 16. Energy-momentum conserving time-stepping algorithms for nonlinear dynamics of planar and spatial Euler-Bernoulli/Timoshenko beams

    Författare :Sophy Chhang; Jean-Marc Battini; Mohammed Hjiaj; Reijo Kouhia; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Nonlinear Dynamics; Energy-momentum conserving scheme; 2D co-rotational beam; Geometrically exact 3D Euler-Bernoulli beam; impact; Byggvetenskap; Civil and Architectural Engineering;

    Sammanfattning : Large deformations of flexible beams can be described using either the co-rotational approach or the total Lagrangian formalism. The co-rotational method is an attractive approach to derive highly nonlinear beam elements because it combines accuracy with numerical efficiency. LÄS MER

  3. 17. Microfabrication and Integration Using Sub-Picosecond Laser Pulses and Magnetic Assembly

    Författare :Miku Laakso; Frank Niklaus; Massimo Mastrangeli; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : Microfabricated devices and systems have many exciting applications such as accelerometers for triggering the launching of airbags in cars, gyroscopes for sensing the rotations of mobile phones, and micromirror arrays for controlling light reflection in digital light projectors. These devices are currently produced using semiconductor manufacturing techniques, which are suitable for large volumes of mostly planar structures. LÄS MER

  4. 18. Improving Manipulation and Control of Search and Rescue UGVs Operating Across Autonomy Levels

    Författare :Fredrik Båberg; Petter Ögren; Paolo Robuffo Giordano; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Datalogi; Computer Science;

    Sammanfattning : Robots are often used for “dirty, dull and dangerous” jobs, where time, money or lives can be saved. A field with dangerous situations is search and rescue, with structural collapses and toxic environment. In those situations, robots have the potential to save lives. LÄS MER

  5. 19. Accelerated wound healing by on-site production and delivery of CXCL12

    Författare :Emelie Öhnstedt; Mia Phillipson; Uppsala universitet; []
    Nyckelord :wound healing; non-healing wounds; L. reuteri; macrophages; wound assessment; Fysiologi; Physiology;

    Sammanfattning : Non-healing wounds is a growing medical problem, often associated with pathological conditions such as diabetes and peripheral ischemia. A non-healing wound entails a large amount of suffering for the patient, and demands extensive health care resources. LÄS MER

  7. 20. Tumor-stroma interactions in hepatocellular carcinoma

    Författare :Nataša Pavlović; Femke Heindryckx; Jessica Maiers; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Hepatocellular carcinoma; fibrosis; endoplasmic reticulum stress; unfolded protein response; platelets; P2Y12; Molekylär cellbiologi; Molecular Cellbiology; Biology with specialization in Molecular Biology; Biologi med inriktning mot molekylärbiologi;

    Sammanfattning : Hepatocellular carcinoma (HCC), a highly deadly primary liver cancer with a rising global incidence and limited therapeutic options, is characterized by a vicious cross-talk between the tumor and its surrounding hepatic stroma. The stromal environment, consisting of hepatic stellate cells (HSC), endothelial cells, resident and infiltrating macrophages and other immune cells, platelets and extracellular matrix (ECM) components, actively contributes to creating an ideal niche for tumor proliferation and invasiveness. LÄS MER