Sökning: "form division"

Visar resultat 1 - 5 av 197 avhandlingar innehållade orden form division.

  1. 1. Robust Form Division - Manging the Effect of Manufacturing Variation

    Författare :Andreas Dagman; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tolerancing; split-line; empirical studies; platform-based products; method development; visual sensitivity; form division; geometric variation.; robust design;

    Sammanfattning : Product development is a necessity for manufacturing companies to keep market shares as well as gaining new ones. Decisions made in the beginning of the process will affect the final product to a large extent. It is thereby of great importance to be able to detect possible obstacles in the early phases of the product development process. LÄS MER

  2. 2. On the cell cycle of Escherichia coli and cell division in Haloferax mediterranei

    Författare :Björn Gullbrand; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Cell and molecular biology; Branch; division; Escherichia coli; Haloferax mediterranei; replication; segregation; Cell- och molekylärbiologi; Cell and molecular biology; Cell- och molekylärbiologi; mikrobiologi; Microbiology;

    Sammanfattning : Escherichia coli has served as a model organism for prokaryotes for several decades and is perhaps the most well characterised organism on earth. The use of fluorescence microscopy during recent years has contributed substantially to our understanding of the essential cell cycle processes chromosome replication, chromosome segregation and cell division. LÄS MER

  3. 3. Fluorescence Studies of Cell Division in Escherichia coli

    Författare :Bill Söderström; Gunnar von Heijne; Jie Xiao; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; E. coli; Cell division; FtsZ; Fluorescence microscopy; FRAP; Biophysics; biofysik;

    Sammanfattning : In Escherichia coli the cell division is carried out by a large dynamic protein complex called the divisome. The divisome assembles in a two-step manner starting with the localization of the eukaryotic tubulin homologue FtsZ to the midcell. Together with other early arriving proteins FtsZ form an intermediate structure called the Z-ring. LÄS MER

  4. 4. Cell division in Escherichia coli

    Författare :Karl Skoog; Daniel O. Daley; Miguel Vicente; Stockholms universitet; []

    Sammanfattning : The Gram-negative bacterium Escherichia coli is a model system to describe the biochemistry and cell biology of cell division in bacteria. This process can be divided into three major steps. The first step involves the replication of the DNA, followed by an elongation step in which the cells become twice as long. LÄS MER

  5. 5. Problems in the Classification Theory of Non-Associative Simple Algebras

    Författare :Erik Darpö; Ernst Dieterich; Karl-Heinz Fieseler; William Crawley-Boevey; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; Division algebra; flexible algebra; normal form; composition algebra; absolute valued algebra; vector product; rotation.; MATHEMATICS; MATEMATIK;

    Sammanfattning : In spite of its 150 years history, the problem of classifying all finite-dimensional division algebras over a field k is still unsolved whenever k is not algebraically closed. The present thesis concerns some different aspects of this problem, and the related problems of classifying all composition and absolute valued algebras. LÄS MER