Sökning: "Lean"

Visar resultat 31 - 35 av 492 avhandlingar innehållade ordet Lean.

1. 31. NOx reduction with dimethyl ether in lean exhaust

   Författare :Sara U Erkfeldt; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NOx storage; Dimethyl ether; ether; hydrocarbon-SCR; lean NOx reduction; alcohol; Cu-ZSM-5; lean NOx trap; alkane; alternative fuel;

   Sammanfattning : There is a growing concern worldwide about the increase in anthropogenic greenhouse gas emissions, particularly carbon dioxide (CO2) from the combustion of fossil fuels. Vehicles with internal combustion engines contribute significantly to these emissions, which has led to an increased demand for engines running on alternative (non-fossil) fuels. LÄS MER

3. 32. Lean, mean sleep machine? : Effects and experiences of a sleep robot intervention for adults with insomnia

   Författare :Siri Jakobsson Støre; Annika Norell-Clarke; Maria Tillfors; Børge Sivertsen; Karlstads universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; ADHD; anxiety; depression; hyperarousal; insomnia; robot; sleep; Psykologi; Psychology;

   Sammanfattning : Many adults suffer from insomnia disorder, struggling to fall asleep, stay asleep, or with early morning awakenings. Hyperarousal is an important predisposing, precipitating and perpetuating factor to insomnia. Anxiety, depression and ADHD are common comorbid disorders, with shared cognitive, behavioral, genetic, and neurological features. LÄS MER

4. 33. Development of collaborative green lean production systems

   Författare :Martin Kurdve; Wiktorsson Magnus; Thomas Lindhqvist; Jens von Axelson; Erik Sundin; Mälardalens högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Operations management; Lean manufacturing; Sustainable production; Environmental management; Swedish manufacturing; Innovation and Design; innovation och design;

   Sammanfattning : This thesis deals with development of lean and green production systems from an action research point of view. The studies focus on Swedish-based automotive and vehicle industries and their aims to integrate sustainable thinking and environmental care into their operations management. LÄS MER

5. 34. Homogeneous Lean Combustion in Downsized Spark-Ignited Engines

   Författare :Kristoffer Clasén; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy efficiency; lean combustion; emissons; transportation;

   Sammanfattning : Emissions of greenhouse-gasses and noxious compounds from internal combustion engines propelling personal transportation vehicles is an imminent issue in the society. Therefore, it is vital to find means of reducing these emissions to decrease the impacts of transportation. LÄS MER

7. 35. Disruption Analysis - An Important Tool in Lean Production

   Författare :Johan Ericsson; Industriell Produktion; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Production technology; TPM.; Kaizen; JIT; Lean Production; Manufacturing system; Disruption; Downtime; Produktionsteknik;

   Sammanfattning : This thesis is divided in two parts which are strongly connected. Part one deal with disruptions occurring in connection with machine down-time, quality losses and increased cycle time. The analysis is based on 10 studies, in which down-time losses in Swedish industry have been registered. LÄS MER