Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Fysik"”.
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Narrativ i fysikundervisningen
… sammanfatta och analysera hur man kan undervisa fysik genom att använda sig av berättelser och historier. Det presenteras också exempel på historier och berättelser och hur dessa kan användas i undervisningen i de senare årskurserna i grundskolan. I teoridelen presenteras vad ett narrativ är och …
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Svarta Hål i Fysikens Historia
… utforskar historien av svarta hål inom fysik genom att spåra utvecklingen av upptäckter, begrepp och modeller från och med Newtons Principia till och med observationerna nyligen gjorda vid LIGO (Laser Interferometer Gravitational-Wave Observatory). Arbetet är skrivet på en teknisk nivå …
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Studerandes förklaringsmodeller gällande glödlampors ljusstyrka i likströmskretsar
… begreppsförståelse är av stort intresse inom fysikundervisningen. Inte minst eftersom slutprov och eventuella förhör ofta ämnar att summativt bedöma just denna begreppsförståelse. De olika fysikaliska begreppen förekommer dock inte som från varandra isolerade entiteter, utan är kopplade till …
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A Global Optimization Scheme for Bimetallic Nanoparticles
The nature of atomic clusters has increasingly attracted the attention of researchers over the last few decades. One of the primary reasons for the rise in interest is that the physical and chemical properties of atomic metal clusters are different from their corresponding bulk metals. To …
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Ionization of large molecules with short laser pulses
The decay dynamics of fullerenes and polyaromatic hydrocarbons (PAH) after femtosecond-laser excitation have been studied experimentally by electron momentum mapping and mass spectrometry. The electron spectra of fullerenes and large PAH-molecules were found to be exponentially decreasing with …
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On the Use of Laser-Induced Incandescence for Soot Diagnostics: From Theoretical Aspects to Applications in Engines
The laser-induced incandescence technique (LII) is a laser-based diagnostic technique for measurements of soot volume fraction and particle size. The technique relies on detection of incandescent light from soot particles heated to around 4000 K using nanosecond laser pulses. A theoretical model …
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Quantum non-demolition detection of propagating microwave photons
Typical photon counters involve absorption of photons to generate electric signals, thus basically destroying the information carried by the photon. This is all the more disastrous if the photon is used as a quantum information carrier, such as a part of an entangled pair. Quantum non-demolition …
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Laser Diagnostic Techniques with Ultra-High Repetition Rate for Studies in Combustion Environments
When conducting laser based diagnostics in combustion environments it is often desirable to obtain temporally resolved information. This can be due to several factors such as combustion taking place in a turbulent flow field, flame propagation from a spark plug in an initially quiescent combustible …
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Quantum computing with naturally trapped sub-nanometre-spaced ions
The main aim of this work, was to lay the foundations for the experimental realisation of a quantum mechanical controlled NOT gate in rare-earth-metal-ion-doped crystals. Small amounts of rare-earth elements, added during the growth of some inorganic crystals, will become substituted into the …