Sökning: "reactive maintenance"

Visar resultat 1 - 5 av 33 uppsatser innehållade orden reactive maintenance.

  1. 1. Evaluation of antioxidant effect of an algae extract on skin: in vitro study

    Kandidat-uppsats, Malmö universitet/Institutionen för biomedicinsk vetenskap (BMV)

    Författare :Oday Al Mustafa; [2023]
    Nyckelord :Algae extract; antioxidant; DPPH; microalgae; ROS; skin covered oxygen electrode; skin;

    Sammanfattning : Algae extracts are used as cosmetic products and used as additives in specific foods because of their antioxidant activity. Reactive oxygen species (ROS) such as hydrogen peroxide and superoxide radicals are toxic on the skin and can be scavenged by antioxidants, which are abundant in microalgae. LÄS MER

  3. 2. Anomaly detection for prediction of failures in manufacturing environments : Machine learning based semi-supervised anomaly detection for multivariate time series to predict failures in a CNC-machine

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Felix Boltshauser; [2023]
    Nyckelord :Machine learning; Anomaly Detection; DeepAnT; ROCKET; OCSVM; manufacturing; predictive maintenance; Maskin inlärning; Anomali Detektion; DeepAnT; ROCKET; OCSVM; tillverkning; prediktivt underhåll;

    Sammanfattning : For manufacturing enterprises, the potential of collecting large amounts of data from production processes has enabled the usage of machine learning for prediction-based monitoring and maintenance of machines. Yet common maintenance strategies still include reactive handling of machine failures or schedule-based maintenance conducted by experienced personnel. LÄS MER

  4. 3. The environmental and social impact from digitization in buildings : A case study of the transformation and current conditions on the University hospital of Northern Sweden

    Master-uppsats, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Matilda Melén; Alma Wenhov; [2022]
    Nyckelord :digitization; building automation; HVAC; energy efficiency; qualitative interview; quantitative interview; LCA; maintenance techniques; environmental analysis; condition-based maintenance; preventive maintenance; reactive maintenance; NUS; the university hospital of northern sweden; Schneider Electric; CO2; transportation; efficiency; indoor comfort; indoor climate; climate change; digitalisering; fastighetsautomation; HVAC; energieffektivisering; kvalitativ intervju; kvantitativ intervju; LCA; underhållsstrategier; miljöanalys; konditionsbaserat underhåll; förebyggande underhåll; reaktivt underhåll; NUS; Norrlands Universitetssjukhus; Schneider Electric; CO2; transporter; effektivitet; inomhuskomfort; inomhusklimat; klimatförändring;

    Sammanfattning : To improve sustainability, social, environmental and economic aspects needs to be considered. The most optimal result appears when all three aspects are balanced equally, this is however often overseen by private investors, who focuses only on reaching economic sustainability at the expense of social and environmental sustainability. LÄS MER

  5. 4. Green and Circular Capital Investments in Production Industry

    Master-uppsats, KTH/Hållbar produktionsutveckling (ML)

    Författare :Filip Magnusson; [2022]
    Nyckelord :Green design; Capital investment design; Production system design; Circular investments; Grön design; Design kapitalinvesteringar; Design produktionssystem; Cirkulära investeringar;

    Sammanfattning : As the concept of sustainability and environmentalism is growing due to new customer demand and regulations, production industry is facing extreme challenges in rethinking their processes and implement sustainability measures. Several companies are taking reactive measures where changes are made on the shopfloor in form of altered operations. LÄS MER

  7. 5. Contamination Level Detection of Hydraulic Pressure Filters in Forklifts : using only pump motor currents and load pressure measurements

    Master-uppsats, Linköpings universitet/Institutionen för systemteknik

    Författare :Robert Sehlstedt; Erik Sellén; [2022]
    Nyckelord :forklift; contamination; level; fault; detection; hydraulic; pressure; filter; pump; motor; current; pressure; data; pdm; predictive; maintenance; rm; reactive; physical; model; modelling; models; moving; window; linear; regression; armature; mean; gaffeltruck; kontamineringsnivå; kontaminering; detektering; feldetektering; tryckfilter; hydraulikfilter; hydraulfilter; filter; pumpfilter; pump; motor; motorström; tryck; linjär; regression; linjärregression; fysikalisk; modellering; modell; armatur; genomsnittsvärde; fönster; data; datafönster;

    Sammanfattning : With the advent of Industry 4.0 and the Internet of Things, collecting data on Cyber-Physical systems has become the norm practice in large scale industries. By collectingrelevant data, it is possible to monitor the health status of whole systems or specificcomponents within them. LÄS MER