Thesis which explores a Wingate variation that we developed together to better simulate athletes’ sport conditions characterised by repeated short bouts of high-intensity effort. The aim of this thesis was to investigate the interrelationship between Body Mass Index (BMI) and anaerobic performance using …

Polyhydroxyalkanoate (PHA) is a biodegradable bioplastic that can be produced by bacteria when consuming a carbon source. Volatile fatty acids (VFAs) are used as building blocks for PHA bioplastics and can be efficiently produced from organic waste through anaerobic digestion. However, the variable composition …

Biogas production involves the complex process of anaerobic digestion in bioreactors. This paper presents numerical modeling results and analysis of bioreactors. We discuss research methodology, model geometry, internal bioreactor processes, and possible modifications. Two mathematical models and their …

Managing dairy excreta as slurry can result in significant emissions of ammonia (NH3) and greenhouse gases (GHGs) during storage and thereafter. Additionally, slurry often has an imbalanced nitrogen (N) to phosphorus (P) ratio for crop fertilization. While various treatments exist to address emissions …

Understanding sludge rheology and optimizing equipment performance is crucial for energy efficiency in wastewater treatment plants (WWTPs). This study examined sludge rheology after thermal hydrolysis pretreatment (THP) at 60, 80, and 120 ◦C for 2 h, followed by anaerobic digestion (AD) at 37 ◦C for …

Source Segregation (SS) is a novel strategy in dairy housing that can reduce emissions and separate organic matter and nutrients more efficiently than traditional slurry solid-liquid separation. The anaerobic digestion (AD) methane yield of the SS fractions, however, is unknown. We aimed at unveiling …

Problems of energy security, diversification of energy sources, and improvement of technologies (including alternatives) for obtaining motor fuels have become a priority of science and practice today. Many scientists devote their scientific research to the problems of obtaining effective brands of alternative …

Background: Aerobic (VT1) and anaerobic threshold (VT2) detection requires either expensive gas analysis machines or difficult practise. A company named StepUp Air who have created a wearable Breathing Rate (BR) and Heart Rate (HR) monitor could potentially provide a cheaper solution in. Objective: …

Previous research shows that power training can increase power output in older adults and may also improve physical performance, physical functioning, and independence. However, power training interventions have not been optimized for older adults. The aim of this study was to assess the feasibility …