Sökning: "lifetime early prediction"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden lifetime early prediction.

1. 1. Interpretable Battery Lifetime Prediction Using Early Degradation Data

   Författare :Huang Zhang; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; interpretable machine learning; uncertainty quantification; lithium-ion battery; lifetime early prediction; capacity knee;

   Sammanfattning : Battery lifetime prediction using early degradation data is crucial for optimizing the lifecycle management of batteries from cradle to grave, one example is the management of an increasing number of batteries at the end of their first lives at lower economic and technical risk. In this thesis, we first introduce quantile regression forests (QRF) model to provide both cycle life point prediction and range prediction with uncertainty quantified as the width of the prediction interval. LÄS MER

3. 2. Assessing Risks of Glaucoma

   Författare :Sigridur Oskarsdottir; Oftalmologi (Malmö); []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Glaucoma; Glaucoma stages; Ocular hypertension; Prevalence; Visual impairment; Prediction model; Lifetime risk; Undetected glaucoma; Screening;

   Sammanfattning : Glaucoma is a potentially blinding disease where the affected individual often firstnotices symptoms when the disease has reached a late stage. If glaucoma is detectedearly e.g., at screening, the risk for visual impairment can be reduced. LÄS MER

4. 3. Prognostics and Health Management of Engineering Systems for Operation and Maintenance Optimisation

   Författare :Madhav Mishra; Matti Rantatalo; Kai Goebel; Kalevi Huhtala; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Prognostics and Health Management PHM ; Diagnostics; Prognostics; Bayesian; Hierarchical; L10; Prediction; Bearing; Li-ion battery; RUL; Particle filter; Model-based; Data-driven; Algorithms; Railway track geometry; Operation and Maintenance Engineering; Drift och underhållsteknik;

   Sammanfattning : Prognostics and health management (PHM) is an engineering discipline that aims to maintain system behaviour and function and ensure mission success, safety and effectiveness. Prognostics is defined as the estimation of remaining useful life. LÄS MER

5. 4. Acetabular Revisions. Risk Factors and Prediction of Re-revision

   Författare :Maziar Mohaddes; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Osteoarthritis; Hip; Register studies; Radiostereometry; Acetabular revision; Trabecular metal;

   Sammanfattning : Hip replacement is a successful intervention when treating patients with hip osteoarthritis. Approximately 10% of all patients undergoing primary hip replacement surgery require further surgical interventions (revisions) during their lifetime. Acetabular component (cup) failure is the most common reason for a revision. LÄS MER

7. 5. Neuroendocrine studies in suicide attempters and in hypersexual disorder

   Författare :Andreas Chatzittofis; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Early life adversity is associated with increased risk of high psychiatric disease, suicidal behavior as well as risky sexual behavior in adulthood. Altered functioning of several neurobiological systems, like the serotonergic system and the hypothalamic-pituitary-adrenal axis associated with suicidal behavior, may stem from both genetic and developmental causes. LÄS MER