Browsing Fysisk institutt by Issue Date
Now showing items 21-40 of 2956
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2005)On 6 December 2002, during winter darkness, an extraordinary event occurred in the sky, as viewed from Longyearbyen (78° N, 15° E), Svalbard, Norway. At 07:30 UT the southeast sky was surprisingly lit up in a deep red ...
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(Master thesis / Hovedoppgave, 2005)I denne oppgava er det utvikla en enkel metode for å bestemme energiutbyttet i et solvarmeanlegg. I slike anlegg omformes strålingsenergien fra sola ved hjelp av en solfanger til varmeenergi i et transportmedium som for ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2005)The orientation relationship between ferroelastic domains in LaNbO4 (with 0.5 at.% Sr) is studied by selected area electron diffraction and high-resolution electron microscopy. At room temperature the domains are related ...
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(Master thesis / Masteroppgave, 2005)This master thesis discusses the VLSI implementation of an Analog VLSI Cochlea Model with an AER output interface. The cochlea uses a unidirectional filter cascade approach, and utilizes a capacitively coupled bi-quad ...
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(Master thesis / Masteroppgave, 2005)The concept of ultra wideband impulse radio has interesting properties. The wide transmission band makes penetration through different ma terials better than narrow band transmission. The lack of carrier may be traded for ...
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(Master thesis / Hovedoppgave, 2005)The ekpyrotic universe is a brane cosmology theory with an alternative explanation of the big bang as a collision between two hyperplanes. We first introduce the reader to brane objects in the context of string theory, and ...
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(Master thesis / Hovedoppgave, 2005)Abstract A solar thermal system transforms radiation from the sun into heat which in turn can cover heating demands. The energy is absorbed by a solar collector and transported to a heat store by pipes and a heat carrier ...
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(Master thesis / Hovedoppgave, 2005)In this thesis, the spacecraft potential measured by the EFW instrument on Cluster has been used to map the plasma density distribution of the magnetosphere. A relation between the spacecraft potential and the plasma density ...
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(Master thesis / Hovedoppgave, 2005)Denne oppgåva studerer ein smal (100-200 km) konveksjonskanal observert med EISCAT Svalbard Radar (ESR) den 20. desember 2001. Oppgåva har to mål. Det eine er å forklara den observerte konveksjonskanalen og fastslå kva for ...
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(Master thesis / Masteroppgave, 2005)ABSTRACT There is a considerable and growing interest in broadband system for providing high capacity communications and broadcasting, through for example high speed Internet. Because of the large bandwidth available in ...
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(Master thesis / Masteroppgave, 2005)Abstract - Device scaling is directly responsible for Moore’s law and has enabled remarkable improvements in CMOS (Complementary Metal-Oxide-Semiconductor) device performance. As device dimension shrinks, the channel ...
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(Master thesis / Hovedoppgave, 2005)Ulempen med benforlengelse med et eksternt apparat er at det er ubehagelig for pasienten å ha apparatet påmontert i den lange tilhelingstiden etter oppnådd forlengelse. På grunn av ubehaget og ulempene med å bære apparatet ...
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(Master thesis / Masteroppgave, 2005)As most radio communication is based on a narrow banded carrier tech nique, the technique this thesis is based on utilizes single impulse transmissions and wide bandwidths. The technique is called Ultra WideBand Impulse ...
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(Master thesis / Masteroppgave, 2005)Litium format monohydrat (Lifo) er i denne oppgaven undersøkt som dosimetermateriale i ESR- (Elektron Spinn Resonans) dosimetri, med vekt på responsen ved nøytron- og ionebestråling. Lifo er tidligere vist å være et lovende ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2005)
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2006)
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2006)
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(Master thesis / Masteroppgave, 2006)In this thesis the inner magnetosphere of Saturn has been studied using data from the Langmuir probe on the spacecraft Cassini. A program has been developed to analyze data from the Langmuir probe. Using this program, three ...
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(Master thesis / Masteroppgave, 2006)In recent years there has been a dramatic increase in the number of wireless applications in both commercial and markets such as defense. Radio Frequency RF) Micro Electro Mechanical Systems (MEMS) with its low power ...
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(Master thesis / Masteroppgave, 2006)EPR-spektroskopi, med avartar som ENDOR og EIE, er veletablerte teknikkar for studiar av radikaldanning i einkrystallar. Hovudmålet med dette arbeidet har vore å identifisere kva radikal som vert danna i einkrystallar av ...