Sökning: "dimensional variation"

Visar resultat 1 - 5 av 171 avhandlingar innehållade orden dimensional variation.

  1. 1. How to Reduce Geometrical Variation in Assembled Products

    Författare :Johan S Carlson; Johan Carlson; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ENGINEERING AND TECHNOLOGY; assembled products; body-in-white BIW ; dimensional variation; geometrical variation; fixtures; fixture diagnosis; locating schemes; multivariate analysis; rigid body motion; robust design; root cause; quality; root cause;

    Sammanfattning : Vehicle problems, such as wind noise, water leakage and door closing effort are examples of quality and functionality defects that are controlled by the dimensional accuracy of the structural frame of an auto body. The aim of this thesis is towards methods for reducing geometrical variation in assembled products in the automotiv other industries. LÄS MER

  2. 2. Functions of Generalized Bounded Variation

    Författare :Martin Lind; Viktor Kolyada; Peter Oswald; Karlstads universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; bounded p-variation; generalized bounded variation; modulus of continuity; function spaces; embeddings; Matematik; Mathematics;

    Sammanfattning : This thesis is devoted to the study of different generalizations of the classical conception of a function of bounded variation.First, we study the functions of bounded p-variation introduced by Wiener in 1924. We obtain estimates of the total p-variation (1.. LÄS MER

  3. 3. Cost-effective Sheet Metal Assembly by Automatic Path Planning and Line Balancing, Integrated with Dimensional Variation Analysis

    Författare :Johan Segeborn; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; robot coordination; sheet metal assembly; dimensional variation; robot motion planning; Equipment utilization; traveling salesman problems and robust design.; load balancing;

    Sammanfattning : Automobiles are an integral part of modern society and its way of life. In addition, automotive manufacturers are important institutions in society, summing the work of a vast array of sub suppliers, employing many. The margins are however moderate and competition is fierce. LÄS MER

  4. 4. Warping and exploration of variability in two-dimensional electrophoresis gels

    Författare :John Gustafsson; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Nyckelord :Curved field lines; distortion criteria; image analysis; proteomics; registration; reproducibility; transformation; two-dimentional gel electrophoresis; variation; variation;

    Sammanfattning : .... LÄS MER

  5. 5. Unwarping and Analysing Electrophoresis Gels

    Författare :John Gustafsson; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Nyckelord :NATURVETENSKAP; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES; NATURAL SCIENCES; Classification; Curved field lines; Gel matching; Image alignment; Image warping; Proteomics; Pulse-field gel electrophoresis; Two-dimensional electrophoresis; Variation; Yeast; Gel matching;

    Sammanfattning : Gel electrophoresis is a technology in molecular biology that is used to separate and quantify biomolecules, for example DNA and proteins. Ideally the position in a gel image corresponds to one or several properties of the molecules, such as size and net charge, but in practise the separation pattern is often warped, that is, geometrically distorted. LÄS MER