Search for dissertations about: "after treatment devices"
Showing result 1 - 5 of 100 swedish dissertations containing the words after treatment devices.
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1. Stability of aligned maxillary anterior teeth after orthodontic treatment : amount of changes with different retention methods and without retention
Abstract : Well-aligned anterior teeth are the major reason for the patients seeking orthodontic treatment, and keeping teeth aligned and stable afterwards is a goal for the orthodontist and the patient. Relapse after treatment is a common problem, and it is defined as when teeth go back to their previous positions. READ MORE
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2. Investigation and Optimization of the Acoustic Performance of Exhaust Systems
Abstract : There is a strong competition among automotive manufacturers to reduce the radiated noise levels. One important source is the engine exhaust where the main noise control strategy is by using efficient mufflers. READ MORE
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3. Global Assessment of Attention Deficit Hyperactivity Disorder : Examining Objective Measures of Hyperactivity, Impulsivity and Inattention in Adults
Abstract : The aim of this thesis is to examine objective laboratory measures of Attention Deficit Hyperactivity Disorder (ADHD) in adult persons and to develop measures for diagnosis and treatment using a psychometric instrument called the Quantified Behavior Test Plus. The instrument objectively quantifies cardinal symptom manifestations in adult ADHD using motion tracking devices and continuous performance testing. READ MORE
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4. Particle Characterization in the Exhaust Devices of Direct Injection Engines
Abstract : Minimizing pollutants are of utmost importance to ensure sustainability in transportation. Particle emissions from internal combustion engines are especially harmful to human health, while also contributing to global warming. READ MORE
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5. Studies of tibial fractures using the Swedish Fracture Register
Abstract : This thesis has two topics. First, the creation and application of the Swedish Fracture Register (SFR) is described. Second, a series of studies of tibial fractures based on data from the SFR follows. READ MORE