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Visar resultat 1 - 5 av 111803 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Circular Manufacturing Systems : A development framework with analysis methods and tools for implementation

   Författare :Farazee M A Asif; Amir Rashid; Peter Hopkinson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Circular economy; circular manufacturing systems; resource conservative manufacturing; ResCoM; system dynamics; Production Engineering; Industriell produktion;

   Sammanfattning : The society today lives on the philosophy of ‘take-make-use-dispose.’ In the long run, this is not sustainable as the natural resources and the waste carrying capacity of the earth are limited. Therefore, it is essential to reduce dependency on the natural resources by decoupling the growth from the consumption. LÄS MER

3. 2. Horizontal Slot Waveguides for Silicon Photonics Back-End Integration

   Författare :Maziar A. M. Naiini; Mikael Östling; Jörge Schulze; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; silicon photonics; slot waveguides; grating couplers; CMOS tech- nology; high-k; ALD; germanium photodetectors; graphene photodetectors; pho- tonic integrated circuits;

   Sammanfattning : This thesis presents the development of integrated silicon photonic devices. These devices are compatible with the present and near future CMOS technology. High-khorizontal grating couplers and waveguides are proposed. LÄS MER

4. 3. Supporting Learning and Teaching of Chemistry in the Undergraduate Classroom

   Författare :Ilana A. Manneh; Karim Hamza; Carl-Johan Rundgren; Lars Eriksson; Ingo Eilks; Stockholms universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; undergraduate chemistry education; learning and teaching processes; didactic triangle; chemical bonding; tutor-student interaction; practical epistemology analysis; continuity; progression; purposes; naturvetenskapsämnenas didaktik; Science Education;

   Sammanfattning : There is agreement in research about the need to find better ways of teaching chemistry to enhance students’ understanding. This thesis aims to contribute to the understanding of how we better support teaching and learning of undergraduate chemistry to make it meaningful and intelligible for students from the outset. LÄS MER

5. 4. Magnetic Refrigeration for Near Room-Temperature Applications

   Författare :Behzad A Monfared; Björn Palm; Joachim Claesson; Andrew Rowe; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Magnetic Refrigeration; Magnetic; Cooling; Magnetocaloric; Life Cycle Assessment; Modeling; Simulation; Optimization; Regeneration; Active Magnetic Regeneration; Bonded Regenerator; Heat Switch; Thermal Diode; Peltier; Solid-State; Prototype; Magnetisk Kylteknik; Magnetisk; Kylning; Magnetokalorisk; Livscykela-nalys; Modellering; Simulering; Optimering; Regenerering; Aktiv Mag-netisk Regenerering; Bunden Regenerator; Värmebrytare; Termodiod; Peltier; Solid-State; Prototyp; Energy Technology; Energiteknik;

   Sammanfattning : Refrigeration plays a crucial role in many different sectors and consumes about 17% of the electricity produced globally. This significant energy consumption implies large share of refrigeration in primary energy consumption and other environmental impacts. LÄS MER

7. 5. Incubators and incubation -Resources and activities in relation to different actors

   Författare :Lise Aaboen; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; policy actor; financial actor; incubator; incubation; university; resources; new technology-based firm;

   Sammanfattning : ABSTRACTIncubators prepare new technology-based firms (NTBFs) for the obstacles ahead, they complement and develop the entrepreneurial ability of the firm founder, advise regarding financing, as well as providing structure and credibility to the firm. Incubators accelerate the development of the firms towards growth, create an entrepreneurial and innovative climate in the region, and contribute to the commercialization of research results from the university. LÄS MER