scholarly journals Corrosion Monitoring of Aircraft Based on the Corrosion Prognostic Health Management (CPHM) System

2020 ◽  
Vol 50 (4) ◽  
pp. 205-216
Author(s):  
Patryk Ciężak ◽  
Adam Rdzanek
Keyword(s):  
Damage Tolerance ◽  
Health Management ◽  
Actual State ◽  
Corrosion Monitoring ◽  
Field Site ◽  
Aircraft Structure ◽  
Corrosion Detection ◽  
Preliminary Results ◽  
Forecasting Methods ◽  
Prognostic Health Management

AbstractThe article presents methods to monitor the actual state of aircraft’s airframe, in particular, the onset of corrosion. The greatest emphasis is put on the “Corrosion Prognostic Health Management” CPHM system. Authors discuss corrosion detection using NDT methods as well as the possibilities of forecasting methods for estimating the onset of corrosion basing on the data gathered by means corrosion sensors. Based on the results of the previous research and analyses, authors focus on monitoring the internal microclimate and the factors causing corrosion in the aspect of damage tolerance operation of the aircraft. The results of the preliminary studies giving credibility to the concepts of predicting corrosion onset in the aircraft structure are presented. Preliminary results of tests carried out in supervised flights are also presented. The final part of the article presents the concept of modernizing the corrosion field site in order to use it in hermetic and non-hermetic tests of aircraft spaces.

Preliminary results from the COPE study using primary-care electronic health records and environmental modelling to examine COPD exacerbations

2018 ◽  
Vol 68 (suppl 1) ◽  
pp. bjgp18X696749 ◽  
Author(s):  
Maimoona Hashmi ◽  
Mark Wright ◽  
Kirin Sultana ◽  
Benjamin Barratt ◽  
Lia Chatzidiakou ◽  
...  
Keyword(s):  
Primary Care ◽  
Electronic Health Records ◽  
Health Management ◽  
Practice Research ◽  
Chronic Obstructive ◽  
Clinical Practice Research Datalink ◽  
Health Records ◽  
Preliminary Results ◽  
Copd Exacerbations ◽  
Electronic Health

BackgroundChronic Obstructive Airway Disease (COPD) is marked by often severely debilitating exacerbations. Efficient patient-centric research approaches are needed to better inform health management primary-care.AimThe ‘COPE study’ aims to develop a method of predicting COPD exacerbations utilising personal air quality sensors, environmental exposure modelling and electronic health records through the recruitment of patients from consenting GPs contributing to the Clinical Practice Research Datalink (CPRD).MethodThe study made use of Electronic Healthcare Records (EHR) from CPRD, an anonymised GP records database to screen and locate patients within GP practices in Central London. Personal air monitors were used to capture data on individual activities and environmental exposures. Output from the monitors were then linked with the EHR data to obtain information on COPD management, severity, comorbidities and exacerbations. Symptom changes not equating to full exacerbations were captured on diary cards. Linear regression was used to investigate the relationship between subject peak flow, symptoms, exacerbation events and exposure data.ResultsPreliminary results on the first 80 patients who have completed the study indicate variable susceptibility to environmental stressors in COPD patients. Some individuals appear highly susceptible to environmental stress and others appear to have unrelated triggers.ConclusionRecruiting patients through EHR for a study is feasible and allows easy collection of data for long term follow up. Portable environmental sensors could now be used to develop personalised models to predict risk of COPD exacerbations in susceptible individuals. Identification of direct links between participant health and activities would allow improved health management thus cost savings.

Physical activity of daily life of Bundeswehr soldiers: a cross-sectional study

2021 ◽  
pp. bmjmilitary-2021-001865
Author(s):  
Christin Schilz ◽  
S Sammito
Keyword(s):  
Physical Activity ◽  
Health Management ◽  
Daily Life ◽  
Armed Forces ◽  
Cross Sectional Study ◽  
Actual State ◽  
Cross Sectional ◽  
German Armed Forces ◽  
Steps Per Day ◽  
Activity Of Daily Life

IntroductionActivity of daily life is an important key to maintaining and improving the health status. This is especially important for people in physically demanding jobs, such as firefighters, military and police.MethodsIn order to record the actual state of activity of daily life among soldiers, a step count measurement with a pedometer was carried out on 196 soldiers of the German Armed Forces over 7 days and supplemented by a questionnaire on lifestyle factors.ResultsThe subjects exceeded the recommended 7000–8000 steps per day, with the rank and file moving the least and the commissioned officers the most. It was also striking that the soldiers in the study moved an average of 2600 steps less per day on weekends than on weekdays.ConclusionsBased on these findings, targeted physical activity measures can be established for the identified target groups within the framework of corporate health management in order to ensure the physical fitness of soldiers on routine duty and on deployment.

Parameters Evaluation for Aero-Engine Prognostic Health Management

2012 ◽  
Vol 236-237 ◽  
pp. 192-196
Author(s):  
Fang Bai ◽  
Wen Li Jin
Keyword(s):  
Calculation Method ◽  
Health Management ◽  
Remaining Life ◽  
Gas Temperature ◽  
Aero Engine ◽  
Prognostic Health Management

Prognostic health-management of aero-engine’s fleet have features with multi-source and asynchronous. Cruise engine gas temperature (EGT) and Take-off EGT have always been the focus of evaluating gas performance and predicting the remaining life. The calculation method of EGT Margin was showed based on the introduction of the definition and classification of the EGT. It analyses not only the relationships between Cruise EGT and Take-off EGT but also each other’s main functions. Meanwhile, an instance was used to explain the disadvantages of using Cruise EGT to calculate life prognostics.

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