Sökning: "the circle method"

Visar resultat 1 - 5 av 79 avhandlingar innehållade orden the circle method.

  1. 1. Ljudstrukturen i dialekten i Rödåliden : Auditiv analys av fonemen i en norrländsk dialekt i början av 2000-talet

    Författare :Rune Westerlund; Lars-Erik Edlund; Eva Strangert; Gjert Kristoffersen; Umeå universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; functional; informants; commutation; distribution; tonal accent; circumflex accent; auditory; cacuminal; Västerbotten; Swedish language; Svenska språket;

    Sammanfattning : This study investigates the sound structure of the dialect of the Rödåliden area in the province of Västerbotten in Northern Sweden. The aim is to describe the phonological system with a structural approach. LÄS MER

  3. 2. On the ring lemma

    Författare :Jonatan Vasilis; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ring lemma; circle packing; sphere packing; Apollonian; sphere packing;

    Sammanfattning : The sharp ring lemma states that if n ≥ 3 cyclically tangent discs with pairwise disjoint interiors are externally tangent to and surround the unit disc, then no disc has a radius below cn = (F2n-1 + F2n-2 - 1)-1 – where Fk denotes the kth Fibonacci number – and that the lower bound is attained in essentially unique Apollonian configurations. Here we give a proof by transforming the problem to a class of strip configurations, after which we closely follow a method of proof due to Aharonov and Stephenson. LÄS MER

  4. 3. Between square and circle : A study on the behaviour of polygonal steel profiles under compression

    Författare :Panagiotis Manoleas; Ove Lagerqvist; Efthymios Koltsakis; Leroy Gardner; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; polygonal; RCPS; plate buckling; shell buckling; towers; transmission lines; wind turbines; high strength steel; Stålbyggnad; Steel Structures;

    Sammanfattning : The present study explores the structural properties of regular convex polygonal cross section (RCPS). Such profiles are commonly used to construct masts and towers, e.g.  transmission towers, light poles etc. LÄS MER

  5. 4. Radio meteors above the Arctic Circle : radiants, orbits and estimated magnitudes

    Författare :Csilla Szasz; Asta Pellinen-Wannberg; Noah Brosch; Umeå universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; meteors; meteoroids; dust; meteor radiants; meteoroid orbits; sporadic sources; radar; meteorradianter; meteoroidbanor; sporadiska källområden; radar; meteorer; meteoroider; interplanetärs stoft; Space engineering; Rymdteknik;

    Sammanfattning : This thesis presents results based on data collected with the 930 MHz EISCAT UHF radar system and three SKiYMet specular meteor radars. It describes in detail a method for meteoroid orbit calculation. The EISCAT UHF system comprises three identical 32 m parabolic antennae: one high-power transmitter/receiver and two remote receivers. LÄS MER

  7. 5. Method development for the analysis of protein interactions

    Författare :Despoina Kermpatsou; Ola Söderberg; Maréne Landström; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; in situ; proximity ligation assay PLA ; strand displacement; proximity-dependent initiation of hybridisation chain reaction proxHCR ; protein complexes; rolling circle amplification RCA ; MolBoolean; vitamin D; 1; 25D3-MARRS receptor; PDIA3; ERp57; CYP24A1; c-Myc; prostate cancer; Molekylär cellbiologi; Molecular Cellbiology; Molekylär medicin; Molecular Medicine;

    Sammanfattning : Biological processes take place through interactions between macromolecules, such as nucleic acids and proteins. It is, therefore, fundamental to understand the functions of proteins and how they form complexes in order to carry out their role. LÄS MER