Sökning: "state of discharge"

Visar resultat 1 - 5 av 106 avhandlingar innehållade orden state of discharge.

  1. 1. State-of-Health Estimation of Li-ion Batteries: Ageing Models

    Författare :Jens Groot; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; State-of-health; lithium-ion battery; EV; PHEV; cycle life test; impedance spectroscopy; DVA; battery testing; ICA; battery model; HEV;

    Sammanfattning : Significant research efforts are being made to understand, and ultimately mitigate, thedegradation of Li-ion batteries upon usage. Currently, battery ageing models are used inorder to optimise the battery usage and to achieve robust battery solutions. LÄS MER

  3. 2. The process of recovery after colorectal cancer surgery : patients' experiences and factors of influence

    Författare :Jenny Jakobsson; Malmö högskola; []
    Nyckelord :Colorectal cancer; Postoperative recovery; Patients experiences; Factors of influence; Health; Anxiety; Svensson s method; Phenomenology;

    Sammanfattning : The aim of this thesis was to describe and compare how patients recovering from different forms of colorectal cancer surgery experience their postopera-tive recovery, general health, and anxiety, up to six months after surgery. In addition, the aim was to describe the influence of patient- and surgery-related factors on patient-reported recovery. LÄS MER

  4. 3. Experimental investigations of ageing of commercial BEV Li-ion batteries

    Författare :Kristian Bartholdsson Frenander; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; silicon oxide; lithium plating; ageing; Physics-based modelling; Electric Vehicles; Lithium Ion Batteries; lifetime; NCA; State of Charge;

    Sammanfattning : The rapid development of lithium-ion batteries has enabled changes in widespread applications ranging from portable electronics to electric vehicles and large scale grid energy storage. However, battery ageing remain a challenge in all these applications, and this thesis seeks to contribute to the understanding of Li-ion battery degradation. LÄS MER

  5. 4. Investigations of some diatomic molecules : the hydrides of selenium, antimony and silicon and the platinum oxide

    Författare :Ulf Sassenberg; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis is an extension and a summary of investigations on the electronic spectra of gaseous SeH/D, SbH/D, PtO and to some minor extent also of gaseous SiH. Rotational analyses are performed on each molecule.SeH/D molecules were generated in photolysis reactions using 12 µs long light flashes. LÄS MER

  7. 5. Force Budget Analysis of Glacier Flow : Ice Dynamical Studies on Storglaciären, Sweden, and Ice Flow Investigations of Outlet Glaciers in Dronning Maud Land, Antarctica

    Författare :Jim Hedfors; Veijo Pohjola; Else Kolstrup; Niels Reeh; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physical geography and sedimentology; force budget; ice flux; ice dynamics; mass balance; strain heating; climate change; Storglaciären; Dronning Maud Land; Antarctica; Naturgeografi och sedimentologi; Physical geography; Naturgeografi;

    Sammanfattning : This thesis contributes to the understanding of glacier response to climate change by ice dynamical studies on Storglaciären, Sweden, and Bonnevie-Svendsenbreen, Kibergbreen and Plogbreen in Dronning Maud Land, Antarctica. Ice surface velocities, ice geometry and temperature information is fed through a force budget model to calculate ice mass outflux of these glacial systems via three-dimensional stress distributions for a flux-gate. LÄS MER