Search for dissertations about: "morphological process"

Showing result 1 - 5 of 233 swedish dissertations containing the words morphological process.

  2. 1. Bottlenecks and blowflies : Speciation, reproduction and morphological variation in Lucilia

    Author : Ann-Britt Florin; Lisa Meffert; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; Population size; speciation; Lucilia sericata; morphological variation; Lucilia illustris; bottlenecks; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi; Animal Ecology; zooekologi;

    Abstract : This thesis attempts to improve our understanding of the role of population size for the process of speciation. First, the effect of population size on speciation is studied using several meta-analyses of published laboratory experiments. READ MORE

  4. 2. Towards the Improvement of Salt Extraction from Lake Katwe Raw Materials in Uganda

    Author : Hillary Kasedde; Pär Jönsson; Anders Tilliander; Eric Forssberg; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Lake Katwe; salt extraction; brine; evaporites; saltpan; characterization; evaporation - crystallization; solubility; Pitzer ’s ion - interaction model; PHREEQC software; dissolution kinetics; Avrami model.;

    Abstract : Uganda is well endowed with economic quantities of mineral salts present in the interstitial brines and evaporite deposits of Lake Katwe, a closed (endorheic) saline lake located in the western branch of the great East African rift valley. Currently, rudimentally and artisanal methods continue to be used for salt extraction from the lake raw materials. READ MORE

  5. 3. Characterization of Raw Materials for Salt Extraction from Lake Katwe, Uganda

    Author : Hillary Kasedde; Stefan Jonsson; Baohua Zhu; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Lake Katwe; salt extraction; brine; evaporites; characterization; PHREEQC;

    Abstract : Uganda is well endowed with economic quantities of salt evident in the interstitial brines and evaporite deposits of Lake Katwe, a closed saline lake located in the western branch of the great East African rift valley. Currently, rudimentally methods of salt mining based on solar evaporation of brine continue to be used for salt extraction at the lake. READ MORE

  6. 4. Field Measurements and Predictions of River Flow, Sediment Transport and Morphological Changes

    Author : Qiancheng Xie; Staffan Lundström; James Yang; J. Gunnar I. Hellström; Anders G. Andersson; Nils Ruther; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Alluvial river; Sediment transport; Morphological change; Meandering; Confluence-diffluence; River training; Field measurements; Numerical simulations; Physical model tests; Machine learning; Alluvial flod; Sedimenttransport; Morfologisk förändring; Slingrande; Konfluens-diffluens; Flodträning; Fältmätningar; Numeriska simuleringar; Fysiska modellprov; Maskininlärning; Strömningslära; Fluid Mechanics;

    Abstract : In an alluvial lowland river, sediment is transported in the form of suspended and bed loads. The fluvial process is the macroscopic view and long-term consequence of sediment movement. READ MORE

  7. 5. FDM 3D printing of conductive polymer nanocomposites : A novel process for functional and smart textiles

    Author : Razieh Hashemi Sanatgar; Jean-François Feller; Anne Schwarz-Pfeiffer; Högskolan i Borås; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; 3D printing; Fused deposition modeling; Adhesion; Deposition; Computer-aided design modeling; Statistical design; Conductive polymer nanocomposite; Multi-walled carbon nanotube; carbon black; Piezoresistive; Pressure Force sensors; 熔融沉积成型；; 附着力; 沉积法; 电脑协助建模; 统计学设计; 导电性高分子复合材料; 多壁碳纳米管; 炭黑; 压阻; 压力传感器; impression 3D; modélisation par dépôt de filament fondu; adhérence; dépôt; modélisation CAO; conception statistique; nanocomposite en polymère conducteur; nanotube de carbone à parois multiples; noir de carbone Ketjen; piézorésistif; capteurs de pression force; 3D-skrivare; fused deposition modeling; vidhäftning; applicering; datorstödd designmodellering; statistisk design; konduktiva polymera nanokompositer; flerväggiga kolnanorör; carbon black; piezoresistiv; tryck- kraftsensorer;

    Abstract : The aim of this study is to get the benefitof functionalities of fused deposition modeling(FDM) 3D printed conductive polymer nanocomposites (CPC) for the developmentof functional and smart textiles. 3D printing holds strong potential for the formation of a new class of multifunctional nanocomposites. READ MORE