Sökning: "compression"

Visar resultat 21 - 25 av 889 uppsatser innehållade ordet compression.

  1. 21. Evaluation of five hardwood species from Zambia to produce fuel pellets for cooking purposes : Study with a single pellet press including pellet production, post production testing and X-ray examinations

    Kandidat-uppsats, Karlstads universitet/Avdelningen för energi-, miljö- och byggteknik

    Författare :Annika Silvennoinen; [2023]
    Nyckelord :Pelletizing; Pellet Production; Wood Species; X-Ray examinations; Pelletisering; Pelletstillverkning; Träslag; Röntgenundersökningar;

    Sammanfattning : 81% of the population in sub-Saharan Africa relies on charcoal and firewood to cover their energy needs for cooking. In Africa charcoal is usually produced by burning tree in a traditional kilns and then the food is cooked with a carbon-fired stoves indoors. LÄS MER

  3. 22. Representations of Three-Body Interactions In Physics

    Kandidat-uppsats, Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

    Författare :Joel Johansen; [2023]
    Nyckelord :Three-Body Interactions; Two-Body Interactions; Physics and Astronomy;

    Sammanfattning : The thesis explores an already developed symmetry adapted representation of a two-body interaction with the main goal of extending the method to also include three-body interactions. The method considers a space of shifted one dimensional Gaussian particle densities which are used, together with their corresponding Hartree potentials, to define the respective collective subspaces in which the interactions are expanded. LÄS MER

  4. 23. Shock absorber dynamics : A parameter study of damper physical quantitiesand their effect on automobile comfort and control

    Master-uppsats, KTH/Väg- och spårfordon samt konceptuell fordonsdesign

    Författare :David Stridfeldt; Jonsson Gustav; [2023]
    Nyckelord :Shock absorbers; dampers; parameter study; valve dynamics; comfort; control; Stötdämpare; dämpare; parameterstudie; ventildynamik; komfort; kontroll;

    Sammanfattning :   Damper performance is most commonly characterized by the damper’s forcevelocity behaviour. Different damper layouts and valving methods for creating oil flow constrictions bring different physical properties, outside of this conventional measure. LÄS MER

  5. 24. Human and Robot Narrator: How Gestures Affect Comprehension and Recollection

    Master-uppsats, Lunds universitet/Kognitionsvetenskap

    Författare :Johannes Rosenfrost; [2023]
    Nyckelord :Cognitive Science; Cognition; Embodiment; Humanoid Robots; Social Robots; HRI; Human-Robot-Interaction; Social Interaction; Robotics; Linguistics; Communication; Multimodality; Non-verbal; Gestures; Narration; Comprehension; Recollection; Social Sciences;

    Sammanfattning : This thesis investigated if a human or a robot narrator affected listeners’ comprehension and memory recollection similarly in a narrative story. 103 participants (MeanAge = 35) were recruited to an online experiment to investigate if gestures affected the participants’ narrative comprehension and recollection more than a narrator that did not produce gestures. LÄS MER

  7. 25. Validation of Finite Element Model of a Tetra Pak Package

    Uppsats för yrkesexamina på avancerad nivå, Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Författare :Warsame Mohamed Ali; Abdullahi Abdi Hashi; [2023]
    Nyckelord :Abaqus; HDPE; Package testing; Validation; Abaqus; HDPE; Pakettestning; Validering;

    Sammanfattning : There is a high dependency on accurate finite element models in the packaging industry for concept selection, design and virtual validation of packages. One of themost used materials for these packages is High-Density Polyethylene (HDPE). Thismaterial is highly anisotropic, strain rate dependent and has different behavior intension and compression. LÄS MER