Sökning: "1 76"

Visar resultat 1 - 5 av 242 uppsatser innehållade orden 1 76.

1. 1. Effective soil organic carbon monitoring in perennial agriculture systems - Sampling protocol development and evaluation

   Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Författare :Maja Holm; [2024]
   Nyckelord :Physical geography; ecosystem science; soil organic carbon; soil sampling; perennial crops; carbon sequestration; carbon farming; Kernza™; soil organic carbon stock; Earth and Environmental Sciences;

   Sammanfattning : Perennial agriculture systems are gaining ground as a more sustainable alternative to conventional annual agriculture, partly for their potential to increase the soil organic carbon (SOC) content. Carbon farming is another hot topic for SOC sequestration, as it creates economic incentives for farmers. LÄS MER

3. 2. Load-velocity profiles as a predictor of performance level in swimming : What differentiates international elite swimmers from national elite – force capacity or efficiency?

   Master-uppsats, Gymnastik- och idrottshögskolan, GIH/Institutionen för fysiologi, nutrition och biomekanik

   Författare :Maria Vitazka; [2023]
   Nyckelord :Load-Velocity; Force-Velocity; Force Capacity; Swimming; Biomechanics; Performance indicators; International elite; swimming performance; 1080 Sprint; 1080 Motion; Semi-tethered force measurements; tethered force measurements; maximum velocity; load; force; swimming efficiency;

   Sammanfattning : Aim  The purposes of this study were to investigate if the load-velocity (L-V) profile parameters – force capacity and efficiency - differ between swimmers of different performance level, and to investigate if efficiency is the key performance indicator between international elite and national elite level swimmers.  Method  Fifty-four swimmers (27 female and 27 male) of either regional level, national elite or international elite level, participated in this study. LÄS MER

4. 3. Investigating self-discharge in a graphite dual-ion cell using in-situ Raman spectroscopy.

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Strukturkemi

   Författare :Ismail Yussuf Hassan; [2023]
   Nyckelord :graphite; dual-ion battery; parasitic reaction; cathode-electrolyte interface; anion intercalation; concentrated electrolyte; self-discharge; Raman spectroscopy;

   Sammanfattning : Anion intercalation in the graphite positive electrode of a dual-ion battery requires high potential (> 4.3 V vs Li+/Li), which aggravates parasitic reactions involving electrolyte decomposition and Al corrosion, manifesting in poor coulombic efficiency, cycle life, and quick self-discharge. LÄS MER

5. 4. Water quality improvement of highway runoff by the filter material D-Rainclean : A five-month field trial

   Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

   Författare :William Gulding; [2023]
   Nyckelord :Adsorption; D-Rainclean; metal removal; Reactive filter; stormwater treatment;

   Sammanfattning : Highway runoff and its pollutants are of growing concern. These pollutants require treatment as their concentration often are increased. A common removal method is the use of sedimentation ponds that removes particulates through gravity. LÄS MER

7. 5. Cognitive impairment in patients with generalized anxiety disorder : A systematic review and meta-analysis

   Master-uppsats, Örebro universitet/Institutionen för medicinska vetenskaper

   Författare :Tea Hadzic; [2023]
   Nyckelord :;

   Sammanfattning : Background: Generalized anxiety disorder (GAD) is characterized by excessive anxiety and is associated with cognitive impairment (CoI) as part of the clinical picture. Long term anxiety can influence cognition negatively, yet there is a limited amount of reviews compiling present research on the association. LÄS MER