Search for dissertations about: "rotational acceleration"

Showing result 1 - 5 of 22 swedish dissertations containing the words rotational acceleration.

  2. 1. Modelling of Diffuse Brain Injury: Combining Methods to Study Possible Links between Transient Intracranial Pressure and Injury

    Author : Ulrika Krave; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; animal model; astrocytosis; diffuse axonal injury; neurofilaments; diffuse brain injury; rotational acceleration; closed head trauma; rabbit; finite element analysis; intracranial pressure; injury mechanisms;

    Abstract : The objectives of this research are the study of sagittal rotational acceleration induced diffuse brain injury mechanisms. Such injuries are common in vehicle accidents in particular; the consequences range from mild to severe symptoms and may lead to persistent neurological dysfunction. READ MORE

  4. 2. Assessment of experimental neurotrauma

    Author : Ying-Lai Huang; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Impulse noise; diffuse brain injury; focal brain injury; closed head injury; NSE; S-100; GFAP; apoptosis; astrocytosis; glutamate; c-JUN; rotational acceleration; CSF;

    Abstract : Model systems of closed head injury are designed to replicate aspects of traumatic brain injury, ischemia and epilepsy in man. The aim of this thesis was to (1) develop sensitive systems enabling analyses of the biochemical reactions, as reflected by leakage of marker compounds to the cerebrospinal fluid (CSF); and (2) develop and assess a new model for closed head injury and associated dynamic changes in the brain cell. READ MORE

  5. 3. Physical Modeling of Brain and Head Kinematics

    Author : Johan Ivarsson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; brain injury; skull base; rotational acceleration; physical models; lateral ventricles; head kinematics; padding materials; sulci; free motion headform; brain kinematics;

    Abstract : The development of head injury criteria and countermeasures for head protection requires understanding of how different factors affect brain and head kinematics. In this thesis, 2D physical models of the human head were developed and used to evaluate how various factors affect brain kinematics during angular head kinematics. READ MORE

  6. 4. Methods for Control of Liquid Slosh

    Author : Mattias Grundelius; Institutionen för reglerteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; control engineering; robotics; Automation; Electronics and Electrical technology; Elektronik och elektroteknik; Automatiska system; robotteknik; reglerteknik; Production technology; Produktionsteknik;

    Abstract : Horizontal movement of liquid containers is a common operation in an industrial packaging machine. During the movement the acceleration of the container induces motion of the liquid within the container, this is referred to as liquid slosh or liquid vibration. READ MORE

  7. 5. Brain injury biomechanics in closed-head impact : studies on injury epidemiology, tolerance criteria, biomechanics and traffic injury prevention

    Author : David Viano; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Closed-head impact; brain injury; biomechanics; injury mechanisms; tolerance criteria; epidemiology; and primary prevention.;

    Abstract : Permanent disability from traumatic brain injury is a devastating consequence of traffic crashes. Injury prevention is a fruitful approach to reduce the incidence and severity of disabling brain injury. READ MORE