Sökning: "Performance fluctuations"

Visar resultat 1 - 5 av 141 avhandlingar innehållade orden Performance fluctuations.

  1. 1. Psychological momentum in handball

    Författare :Karin Moesch; Institutionen för psykologi; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Performance fluctuations; team sports; nonverbal behaviour; performance; emotional contagion;

    Sammanfattning : This doctoral dissertation deals with a phenomenon that is often referred to in sports, but still poorly understood from a scientific angle: psychological momentum (PM). No consensus has been agreed on how to label this phenomenon, and other terms such as momentum or behavioural momentum (BM) are often used interchangeably. LÄS MER

  3. 2. Small-Scale Decentralized Energy Systems : optimization and performance analysis

    Författare :Sara Ghaem Sigarchian; Viktoria Martin; Anders Malmquist; Erik Dahlquist; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Small-scale polygeneration energy systems; techno-economic optimization; renewable energy; operating strategy; particle swarm optimization; optimization algorithm; decentralized energy system;

    Sammanfattning : Small-scale polygeneration energy systems, providing multiple energy services, such as heating, electricity, cooling, and clean water, using multiple energy sources (renewable and non-renewable) are considered an important component in the energy transition movement. Exploiting locally available energy sources and providing energy services close to the end users have potential environmental, economic, and societal benefits. LÄS MER

  4. 3. Improving Machining System Performance through designed-in Damping : Modelling, Analysis and Design Solutions

    Författare :Lorenzo Daghini; Cornel Mihai Nicolescu; Miroslav Píška; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Machining performance; Cutting stability; Passive damping; High Damping Interface; Boring bar; Turret; SRA - Production; SRA - Produktion;

    Sammanfattning : With advances in material technology, allowing, for instance, engines to withstand higher combustion pressure and consequently improving performance, comes challenges to productivity. These materials are, in fact, more difficult to machine with regards to tool wear and especially machine tool stability. LÄS MER

  5. 4. Fluctuations and nonequilibrium thermodynamics in electronic nanosystems

    Författare :Ludovico Tesser; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Charge; heat and spin transport; Hot-carrier solar cell; Nonequilibrium thermodynamics; Fluctuations and noise; Shot noise; Mesoscopic thermoelectricity;

    Sammanfattning : In the last decades thermodynamics has seen a resurgence because of the interesting phenomena that happen in small-scale systems. Indeed, in nanoscale devices, quantum effects and fluctuations cannot generally be neglected and influence both the transport and their thermodynamic performance. LÄS MER

  7. 5. Manufacturing Dynamics and Performance Evaluation

    Författare :Tigist Fetene Adane; Andreas Archenti; Mihai Nicolescu; Amos Ng; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Manufacturing system and strategy; performance evaluation; manufacturing dynamics; decision-making; system dynamics; sustainable and energy efficient manufacturing; Production Engineering; Industriell produktion;

    Sammanfattning : Manufacturing companies are striving to remain competitive in the market and maintain their economic growth and productivity. Uncertainties regarding the changes in product demand, workpiece material, product design, and technological advancement, have imposed pressure on manufacturing systems. LÄS MER