Search for dissertations about: "column"

Showing result 1 - 5 of 423 swedish dissertations containing the word column.

  1. 1. Packed Column Supercritical Fluid Chromatography Applications in Environmental Chemistry

    University dissertation from Örebro : Örebro University

    Author : Nicole Riddell; Örebro universitet.; [2017]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Supercritical Fluid Chromatography; Mass Spectrometry; Ionization; POPs; APPI; APCI; chiral; achiral; packed column;

    Abstract : Although gas and liquid chromatography have emerged as dominant separation techniques in environmental analytical chemistry, these methods do not allow for the concurrent analysis of chemically diverse groups of persistent organic pollutants (POPs). There are also a small number of compounds which are not easily amenable to either of these traditional separation techniques. READ MORE

  2. 2. Accelerating column generation schemes : applications to routing problems

    University dissertation from Linköping : Linköpings universitet

    Author : Andreas Westerlund; Linköpings universitet.; Linköpings universitet.; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; MATHEMATICS; MATEMATIK;

    Abstract : Many integer optimization problems of great practical importance are today attacked with column generation. Merits of column generation is that it enables the use of compact and flexible formulations of many complex optimization problems, and that it often gives rise to good (strong) formulations. READ MORE

  3. 3. Physics of Column Stability

    University dissertation from Lund Institute of Technology

    Author : Ali Asghar Mazlumolhosseini; [1975]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : .... READ MORE

  4. 4. Methods and Applications in Integer Programming All-Integer Column Generation and Nurse Scheduling

    University dissertation from Linköping : Linköping University Electronic Press

    Author : Elina Rönnberg; Linköpings universitet.; Linköpings universitet.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; integer programming; column generation; set partitioning problems; quasi-integrality; nurse scheduling; MATHEMATICS Applied mathematics Optimization; systems theory; MATEMATIK Tillämpad matematik Optimeringslära; systemteori;

    Abstract : Integer programming can be used to provide solutionsto complex decision and planning problems occurring in a wide varietyof situations. Applying integer programming to a real life problembasically involves a first phase where a mathematical model isconstructed, and a second phase where the problem described by themodel is solved. READ MORE

  5. 5. Optimal Truck Scheduling Mathematical Modeling and Solution by the Column Generation Principle

    University dissertation from Matematiska institutionen

    Author : Myrna Palmgren; Linköpings universitet.; Linköpings universitet.; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; optimisation; pickup and delivery problem; transportation; scheduling; column generation; integer programming; MATHEMATICS; MATEMATIK;

    Abstract : We consider the daily transportation problem in forestry which arises when transporting logs from forest sites to customers such as sawmills and pulp and paper mills. Each customer requires a specific amount of a certain assortment, and the deliveries to the customers can be made within time intervals, known as time windows. READ MORE