Sökning: "Sigma W"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden Sigma W.

  1. 1. Mineralogical characterization of gold in the Aurora ore zone in the Björkdal gold mine, northern Sweden – implications for metal recovery

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Krister Åström; [2022]
    Nyckelord :geology; Björkdal gold deposit; Skellefte district; gold; Au; Aurora ore zone; metal recovery; cold mounting; SEM; QEMSCAN; mineral association; grain size;

    Sammanfattning : The Aurora zone is an ore zone which was recently discovered in the Björkdal gold mine, northern Sweden, and it has been the main focus of mining and exploration activities for the past few years (Pressacco et al., 2020). The purpose of this project is to determine how gold occurs in the Aurora zone. LÄS MER

  3. 2. 16 GS/s Continuous-Time ΣΔ Modulator in a 22 nm SOI Process : a Simulation and Feasibility Study

    Master-uppsats, Linköpings universitet/Tekniska fakulteten; Linköpings universitet/Elektroniska Kretsar och System

    Författare :Eric Öberg; Gustav Kindeskog; [2018]
    Nyckelord :sigma delta modulator;

    Sammanfattning : With a reference specification model in terms of 8 GS/s Sigma Delta Modulator in a 28 nm CMOS process consuming 890 mW, the purpose with this thesis is to construct a similar and simpler model but with higher specification demands. In a 22 nm SOI process with an input signal bandwidth of 500 MHz sampled at 16 GS/s with a power consumption below 2 W, the objective is to design a Continuous-Time Sigma Delta Modulator with verified simulated functionality on a transistor level basis. LÄS MER

  4. 3. In Vitro Starch Digestion for Analysis of Healthy Carbohydrates

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Industriell miljö- och processteknik

    Författare :Carolin Ngo; [2018]
    Nyckelord :;

    Sammanfattning : The health impact of carbohydrates is often debated in questions regarding nutrition and health. One reason is that intake of carbohydrates affect the blood glucose level to different extent depending on the characteristics of the carbohydrate. LÄS MER

  5. 4. Safety Evaluation of the Zhaoli Tailings Dam : A seepage, deformation and stability analysis with GeoStudio

    Uppsats för yrkesexamina på avancerad nivå,

    Författare :Malin Ljungblad; Johan Bäckström; [2016]
    Nyckelord :;

    Sammanfattning :  The mining industry produce large amount of mine waste, also called tailings, which must be kept in tailings dams. In this thesis the safety and stability of a tailings dam have been studied, where some of the tailing material is being used as filling material. The dam has been modelled and simulated using the software Geostudio. LÄS MER

  7. 5. Micro-Power Inverter-Based Continuous-Time Sigma-Delta Modulator for Biosensor Applications

    Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Jiazuo Chi; [2014]
    Nyckelord :;

    Sammanfattning : Biosensor applications have made promising progress during the last decade, presenting potentials and challenges at the same time. Meanwhile, digital signal processing (DSP) has become even more powerful than before, due to Moore's Law. LÄS MER