Sökning: "field border"

Visar resultat 1 - 5 av 50 avhandlingar innehållade orden field border.

  1. 1. Border-Crossing Commemorations : Entangled Histories of Swedish Settling in America

    Författare :Adam Hjorthén; Mats Hallenberg; Dag Blanck; Ulf Zander; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; History; commemoration; border-crossing; entanglement; New Sweden Tercentenary; Swedish Pioneer Centennial; settler colonialism; race; modernity; pioneering; migration; transnational; Sweden; the United States; Delaware; Pennsylvania; Swedish America; History; historia;

    Sammanfattning : Different groups from both sides of the Atlantic have since the 1930s come together to commemorate histories of Swedish settling in America. They have celebrated the founding of the New Sweden colony in the Delaware Valley (1638–1655), and the mid-nineteenth-century arrival of Swedish pioneers in the Mississippi Valley. LÄS MER

  3. 2. Effects of landscape context on populations of bumblebees

    Författare :Anna Persson; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Apoidea; Bombus; Campanula; agriculture; land-use intensity; complexity; garden; grassland; field border; MFC; pollination; Factor Analysis;

    Sammanfattning : To investigate recent declines in bumblebee populations, I carried out landscape analyses, made field studies of bumblebees, flowering plants and pollination in an agricultural region in southernmost Sweden. Studies were carried out in landscapes of contrasting agricultural intensity and land-cover configuration; "simple" landscapes highly dominated by large crop fields, and "complex" with mixed farming, grasslands and smaller fields. LÄS MER

  4. 3. Humanity Washed Ashore : Visual representations of practices, people, and the borders of Europe

    Författare :Daniel Silberstein; Stefan Borg; Paulina de los Reyes; Peo Hansen; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Visual in security; migration; border control; Frontex; critical border studies; internationella relationer; International Relations;

    Sammanfattning : Over the past decade, Frontex (European Border and Coast Guard Agency) has emerged as a central actor for the European Union’s migration and border policies. This doctoral dissertation examines the role of Frontex in constructing understandings of borders, practices, and people present in these spaces as well as more ambivalent representations of risk, unease, and (in)security. LÄS MER

  5. 4. Vertical Nanowire High-Frequency Transistors

    Författare :Sofia Johansson; NanoLund: Centre for Nanoscience; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nanowires; III-V semiconductors; metal-oxide-semiconductor field-effect transistors; border traps; high-k;

    Sammanfattning : This thesis explores a novel transistor technology based on vertical InAs nanowires, which could be considered both for low-power high-frequency analog applications and for replacing Si CMOS in the continued scaling of digital electronics. The potential of this device - the vertical InAs nanowire MOSFET – lies in the combination of the outstanding transport properties of InAs and the improved electrostatic control of the gate-all-around geometry. LÄS MER

  7. 5. Electrical Characterization of III-V Nanostructure

    Författare :Aein Shiri Babadi; Institutionen för elektro- och informationsteknik; []
    Nyckelord :High-κ; Metal-Oxide-Semicondcutor capacitors; MOSCAPs; III-V semiconductors; InAs; GaSb; interface traps; border traps; C-V; Simulations; Nanowire; MOSFET; Fabrication;

    Sammanfattning : This thesis investigates the electronic properties of a number of novel III-V materials and material combinations for transistor applications. In particular, high-κ/InAs metal-oxide-semiconductor (MOS) structures and transport properties of GaSb nanowires have been studied. LÄS MER