Research Data without files and datasets / Forschungsdaten ohne Dateien und Datensätze https://hdl.handle.net/20.500.12738/12164 2026-10-07T00:49:50Z 2026-10-07T00:49:50Z Scholz, Dieter https://hdl.handle.net/20.500.12738/20187 2026-10-06T09:12:59Z 2026-10-06T09:08:47Z

Title: Turbofan engine maintenance cost estimation for preliminary aircraft design : empirical regression with thrust and flight-cycle length Authors: Scholz, Dieter Abstract: An empirical preliminary-design equation is derived for planned turbofan engine maintenance reserve as a function of rated take-off thrust, T and flight-cycle length, L = EFH/EFC. 35 published maintenance cost observations are normalized to 2025 USD with the U.S. Consumer Price Index for All Urban Consumers (CPI-U) and fitted separately for small/medium and large engines. The recommended model is piecewise linear of the form C = a + b T + d/L. Power-law relations are discussed as sensitivity checks. The text documents calibration limits, source traceability, specific maintenance cost per rated thrust, C/T, and an example of a four-versus-two-engine comparison. Application to preliminary aircraft design is demonstrated by engine-number trades at constant total installed thrust, including four-versus-two-engine examples and a discussion of the limits of extending the approach towards distributed propulsion.

2026-10-06T09:08:47Z Weitz, Edmund https://hdl.handle.net/20.500.12738/19923 2026-09-21T15:41:29Z 2026-08-28T11:21:04Z

Title: Software model of a swing with an eccentric suspension Authors: Weitz, Edmund Abstract: Graphical simulation of a swing with an eccentric suspension. Various parameters can be changed with sliders to immediately see the effect. Written in pure JavaScript, should run on all modern web browsers.

2026-08-28T11:21:04Z Rosenthal, Tabea Diskowski, Inken Buchcik, Johanna Petersen-Ewert, Corinna https://hdl.handle.net/20.500.12738/19650 2026-07-24T12:09:13Z 2026-07-24T12:05:01Z

Title: Life after SICU: Post-intensive care Syndrome (PICS) in surgical ICU (SICU) patients - a scoping review protocol Authors: Rosenthal, Tabea; Diskowski, Inken; Buchcik, Johanna; Petersen-Ewert, Corinna Abstract: Background: Post‑intensive care syndrome (PICS) is a diagnosis that describes the consequences of treatment in the intensive care unit. Impairments in cognitive, physical, mental and social health can occur, which can lead to a reduction in health-related quality of life. Surgical intensive care patients are exposed to many potential risk factors. Objective and research question: The aim of the scoping review is to provide an overview of the evidence regarding the occurrence of PICS symptoms in patients after treatment in a surgical intensive care unit and to identify research gaps. The following questions will be answered: 1) What mental, cognitive, physical and social health problems occur in surgical patients in the first 12 months after intensive care treatment? 2) Are there differences in the occurrence of PICS symptoms in certain patient groups (e.g. age, gender, type of accident/operation)? Method: The review will be conducted in accordance with the PRISMA criteria. A systematic literature search will be carried out. Qualitative, quantitative and mixed-method studies will be included. Screening will be carried out by two independent reviewers in a two-stage process. The results will be categorised and clustered according to the different PICS areas. Quality will be assessed using the Mixed-Methods Appraisal Tool (MMAT).

2026-07-24T12:05:01Z Senadeera, Devathanthrige Janaka Chamara Harshana Sayem, Abu Sadat Muhammad Leal Filho, Walter Farhat, Grace Moda, Haruna Musa https://hdl.handle.net/20.500.12738/19448 2026-06-18T14:03:22Z 2026-06-18T14:00:49Z

Title: Additional file 1 of Workplace health and safety under climate stress in Sri Lankan apparel SMEs Authors: Senadeera, Devathanthrige Janaka Chamara Harshana; Sayem, Abu Sadat Muhammad; Leal Filho, Walter; Farhat, Grace; Moda, Haruna Musa

2026-06-18T14:00:49Z