Essays about: "Roll gradient"

Showing result 21 - 23 of 23 essays containing the words Roll gradient.

  1. 21. Morphological Studies of Nanowire Surfaces Using Scanning Probe Techniques

    University essay from Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Author : Johan Knutsson; [2012]
    Keywords : STM; Nanowire; Semiconductor; Morphology; Surface; InAs; Heterostructure; Physics and Astronomy;

    Abstract : Highly structured polytypic InAs III-V semiconductor nanowires with an axial stacking of wurtzite (WZ) and zincblende (ZB) segments were studied using scanning tunneling microscopy and spectroscopy (STM/S). The periodic changes in the axial direction of the crystal structure were achieved by precisely tuning the growth parameters, and no unwanted doping gradient was required. READ MORE

  3. 22. Hydrauliken i Ångersjöns fosforfällor : bestämning av flödesvägar och åtgärdsförslag för optimal fosforbindning vid avloppsrening med reaktiva filter

    University essay from SLU/Dept. of Soil and Environment

    Author : Ellinor Jansson; [2008]
    Keywords : fosforrening; Ångersjön; filtermaterial;

    Abstract : Discharge of untreated wastewater leads to unnaturally high levels of nitrogen and phosphorus in rivers, lakes and the sea, which results in unbalanced ecosystems with eutrophication and lack of oxygen. Part of the phosphorus in surface waters is coming from on-site wastewater treatment from scattered households with unsatisfactory purification. READ MORE

  4. 23. Klimat i djurtransportbil med slaktgrisar sommartid : jämförelse mellan naturlig och mekanisk ventilation

    University essay from SLU/Dept. of Landscape Architecture, Planning and Management (from 130101)

    Author : Jannica Krafft; [2005]
    Keywords : slaktdjur; grisar; transport; värmestress; ventilation; ventilationssystem;

    Abstract : Uppskattningsvis transporteras 171 miljoner grisar inom EU varje år, varav ca 3,5 miljoner i Sverige. Grisarna kommer, under hela förloppet från förflyttningen från box i stallet till bedövningen i slakteriet, att utsättas för stressande moment. READ MORE