Browsing Fysisk institutt by Issue Date
Now showing items 21-40 of 3672
-
(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 ...
-
(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 ...
-
(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 ...
-
(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 ...
-
(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 ...
-
(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 ...
-
(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 ...
-
(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 ...
-
(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 ...
-
(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 ...
-
(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 ...
-
(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 ...
-
(Master thesis / Masteroppgave, 2005)This thesis sought to find ion outflow as measured by Cluster in the polar cusp, in conjunction with ionospheric upflow events observed by the EISCAT radars outside Longyearbyen on Svalbard (ESR). The constraints placed ...
-
(Master thesis / Masteroppgave, 2005)Abstract Broadband fixed wireless access (BFWA) systems have been recognized as an effective first kilometer solution for broadband services to residential and business customers. The large bandwidth available in frequency ...
-
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2005)
-
(Master thesis / Masteroppgave, 2006)Bioimpedance and treatment response monitoring in cancer research Bioimpedance monitoring in vivo is an non-invasive technique to examine changes in electrical conductivity. The electrical properties of tissue depend upon ...
-
(Master thesis / Hovedoppgave, 2006)
-
(Master thesis / Hovedoppgave, 2006)In this work hydrides formed from three different intermetallics compounds, Zr2Cu, Zr2Pd and LaPtIn, were investigated, with focus on hydrogen induced structural changes. The main methods were neutron (PND) and synchrotron ...
-
(Master thesis / Hovedoppgave, 2006)Samandrag Humane celler sin respons på stråling endrar seg med varierande doseratar. I denne oppgåva har to humane cellelinjer vorte bestrålte med ultralåge doseratar for å kartleggje effekten av strålinga ved bestrålingstider ...
-
(Master thesis / Masteroppgave, 2006)Polar cap patches are regions of enhanced plasma density, seen to drift fromthe sunlit ionosphere on the day side, over the polar cap, and into the night side Auroral oval. The patches are related to substorm activity and ...