Sökning: "chief"

Visar resultat 1 - 5 av 136 avhandlingar innehållade ordet chief.

1. 1. Mechanical and Environmental Durability of High Performance Bio-based Composites

   Författare :Newsha Doroudgarian; Egidija Rainosalo; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polymera konstruktionsmaterial; Polymeric Composite Materials;

   Sammanfattning : This study is an initial step within the on-going project on development of high performance bio-based composites with improved mechanical (fatigue) and environmental (elevated humidity and temperature) durability. In the presented thesis the performance of cellulosic fibers (flax and regenerated cellulose), bio-based resins (Tribest, EpoBioX, Palapreg, and Envirez) and their composites under exposure to elevated humidity has been studied. LÄS MER

3. 2. Swallowing dysfunction among older people in short-term care : prevalence, effect of intervention, and risk of mortality

   Författare :Patricia Hägglund; Eva Levring Jäghagen; Per Wester; Mary Hägg; Karin Brunnegård; Per Östberg; Umeå universitet; []
   Nyckelord :swallowing disorder; dysphagia; elderly care; intermediate care; undernutrition; oral health; treatment; rehabilitation; quality of life; mortality risk; survival;

   Sammanfattning : Objectives: Swallowing dysfunction (dysphagia) is a common, but often neglected condition among geriatric patients that can cause severe complications such as malnutrition, aspiration pneumonia and death. The aims of this thesis were to (i) describe the study design and method of the multidisciplinary and multicenter project SOFIA (Swallowing function, Oral health, and Food Intake in old Age), (ii) study the prevalence of and the relationship between swallowing dysfunction and risk of undernutrition among older individuals in short-term care, (iii) study the effect of oral neuromuscular training on swallowing dysfunction among older individuals, and (iv) to investigate the association between poor oral health, swallowing dysfunction and mortality. LÄS MER

4. 3. Towards application of service oriented architecture in wireless sensor networks

   Författare :Rumen Kyusakov; Zach Shelby; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industriell elektronik; Industrial Electronics;

   Sammanfattning : Wireless sensor networks (WSN) are a foreseeable source of innovation in many fields and the number of WSN deployments is expected to grow rapidly in the near future. One of the key challenges in designing, implementing, deploying and maintaining complex systems that use WSNs is provisioning and integration of sensor data with existing communication infrastructures. LÄS MER

5. 4. SOD1 misfolding and aggregation in ALS : in the light of conformation-specific antibodies

   Författare :Manuela Lehmann; Jonathan D. Gilthorpe; Stefan L. Marklund; Thomas Brännström; Ulrika Nordström; Elizabeth Fisher; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ALS; antibodies; SOD1; disordered SOD1; patient-derived models; low oxygen tension; Immunotherapy;

   Sammanfattning : Mutations in the superoxide dismutase 1 (SOD1) gene are linked to the progressive neurodegenerative disease amyotrophic lateral sclerosis (ALS). ALS-associated mutations affect the stability of the SOD1 protein and promote its unfolding. As a consequence, disordered SOD1 species can misfold and accumulate into insoluble aggregates. LÄS MER

7. 5. Development and Validation of a Numerical Tool for the Aeromechanical Design of Turbomachinery

   Författare :María Angélica Mayorca; Torsten Fransson; Damian Vogt; Eric Seinturier; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; aeromechanical design; turbomachinery; numerical tool; reduced order modeling; mistuning; ROM; aero-structure coupling; CFD; FEM; methods; Mechanical energy engineering; Mekanisk energiteknik;

   Sammanfattning : In aeromechanical design one of the major rules is to operate under High Cyclic Fatigue (HCF) margins and away from flutter. The level of dynamic excitations and risk of HCF can be estimated by performing forced response analyses from blade row interaction forces or Low Engine Order (LEO) excitation mechanisms. LÄS MER