| 1. |
- Frojdh, K, et al.
(författare)
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Deceased, disabled or depressed - a population-based 6-year follow-up study of elderly people with depression
- 2003
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Ingår i: Social Psychiatry and Psychiatric Epidemiology. - : Springer Science and Business Media LLC. - 0933-7954 .- 1433-9285. ; 38:10, s. 557-562
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Tidskriftsartikel (refereegranskat)abstract
- The prognosis of depression in elderly people is reported as poor, with high mortality and high rate of non-recovery. The aim of this study was to investigate the outcome after 6 years in a broader perspective. In addition to the risk of dying, we also estimated the risk of moving to long-term care, and having a depression in a re-screening event after 6 years. In 1993, a screening event for depressive symptoms using the Hopkins Symptom Checklist (HSCL-25) was carried out on 1215 subjects aged 65 years and older living in a health care district in Karlstad, Sweden. The study population was divided into a high score, a low score and a dropout group. A re-screening of the same population was carried out in 1999. Logistic regression analysis was used for calculating odds ratios for the selected end-points adjusted for age, gender, civil status and occurrence of physical illness. The adjusted odds ratios for dying for the high score group were 2.5 (95% CI 1.5-4.4) and for any of the end-points 6.1 (95% CI 3.5-10.8) compared with the low score group. Nearly three-quarters of the subjects in the high score group were deceased, depressed or had moved to long-term care after 6 years. The prognosis was poor for depressed elderly people despite not having more physical illness. It is believed that the poor outcome is due to an additive effect of depression on the total medical disease burden.
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| 2. |
- Pilthammar, Jan, et al.
(författare)
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New press deflection measuring methods for the creation of substitutive models for efficient die cambering
- 2021
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Ingår i: IOP Conference Series. - : IOP Publishing. - 1757-8981 .- 1757-899X. ; 1157
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Tidskriftsartikel (refereegranskat)abstract
- Cost and time for die tryout are significant within the car industry, and elastic deflections of dies and presses are most commonly not considered during the virtual die design and forming simulation phase. Because of this, active surfaces of stamping dies are only cambered based on previous experiences of tool types and presses. However, almost all stamping dies and presses are unique, and available experiences are not valid for new materials. Partners within the Eureka SMART Advanced Manufacturing research project CAMBER have developed advanced deflection measuring devices to quantify the elastic deformations of presses. Using these measurements, cambering methodologies can be utilized in sheet metal forming simulations. Important breakthroughs in recent years enabling the cambering methodology consists of efficient simulation strategies for full scale simulations with elastic dies and optimization techniques for creating substitutive press structures based on measurements. Furthermore, modern press deflection measurement methods are beneficial in applications such as Industry 4.0, predictive maintenance, product quality control, etc. through a more advanced understanding and live monitoring of the press system.
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| 3. |
- Pilthammar, Johan, et al.
(författare)
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New press deflection measuring methods for the creation of substitutive models for efficient die cambering
- 2021
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Ingår i: INTERNATIONAL DEEP-DRAWING RESEARCH GROUP CONFERENCE (IDDRG 2021). - : IOP PUBLISHING LTD.
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Konferensbidrag (refereegranskat)abstract
- Cost and time for die tryout are significant within the car industry, and elastic deflections of dies and presses are most commonly not considered during the virtual die design and forming simulation phase. Because of this, active surfaces of stamping dies are only cambered based on previous experiences of tool types and presses. However, almost all stamping dies and presses are unique, and available experiences are not valid for new materials. Partners within the Eureka SMART Advanced Manufacturing research project CAMBER have developed advanced deflection measuring devices to quantify the elastic deformations of presses. Using these measurements, cambering methodologies can be utilized in sheet metal forming simulations. Important breakthroughs in recent years enabling the cambering methodology consists of efficient simulation strategies for full scale simulations with elastic dies and optimization techniques for creating substitutive press structures based on measurements. Furthermore, modem press deflection measurement methods are beneficial in applications such as Industry 4.0, predictive maintenance, product quality control, etc. through a more advanced understanding and live monitoring of the press system.
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