Browsing Faculty of Mathematics and Natural Sciences by Title
Now showing items 950-969 of 9927
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Characterisation of extensional faults in carbonate rocks (Suez Rift, Egypt); with particular focus on the role of shale smear
(Master thesis, 2012-04-27)The distribution, composition and flow-properties of fault core and shale smear along faults in carbonate reservoirs is less well understood compared to faults in siliciclastic rocks. This study uses field data to characterize ... -
Characterisation of Single Wind Turbine Wakes with Static and Scanning WINTWEX-W LiDAR Data
(Peer reviewed; Journal article, 2015)With further development of LiDAR technology wake measurements by use of LiDAR became of common interest in the wind energy community. To study new measurement strategies of scanning and nacelle LiDARs, in combination with ... -
Characterisation of the paralytic shellfish toxin biosynthesis gene clusters in Anabaena circinalis AWQC131C and Aphanizomenon sp. NH-5
(Peer reviewed; Journal article, 2009-03-30)Background: Saxitoxin and its analogues collectively known as the paralytic shellfish toxins (PSTs) are neurotoxic alkaloids and are the cause of the syndrome named paralytic shellfish poisoning. PSTs are produced by a ... -
Characterising Mesoscale Fast Flow Channels in the Polar Cap Ionosphere
(Doctoral thesis, 2021-01-22)The large-scale ionospheric convection that circulates in the high-latitude polar caps was initially assumed to be a smooth, laminar flow. However, it has now come to light that this is an oversimplified understanding of ... -
Characterising the local and intense water cycle during a cold air outbreak in the Nordic Seas
(Journal article; Peer reviewed, 2018)Air masses in marine cold air outbreaks (CAOs) at high latitudes undergo a remarkable diabatic transformation because of the uptake of heat and moisture from the ocean surface, and the formation of precipitation. In this ... -
Characteristics and Meteorological Environment of Terrestrial Gamma-ray Flashes
(Doctoral thesis, 2021-05-28)This thesis investigates the geographic and meteorological conditions in which Terrestrial Gamma-ray Flashes (TGFs) are produced. TGFs are submillisecond bursts of gamma radiation produced inside thunderclouds in association ... -
Characteristics and Transformation of Pacific Winter Water on the Chukchi Sea Shelf in Late Spring
(Peer reviewed; Journal article, 2019)Data from a late spring survey of the northeast Chukchi Sea are used to investigate various aspects of newly ventilated winter water (NVWW). More than 96% of the water sampled on the shelf was NVWW, the saltiest (densest) ... -
Characteristics of 454 pyrosequencing data—enabling realistic simulation with flowsim
(Peer reviewed; Journal article, 2010)Motivation: The commercial launch of 454 pyrosequencing in 2005was a milestone in genome sequencing in terms of performance and cost. Throughout the three available releases, average read lengths have increased to ∼500 ... -
Characteristics of Cold-Air Outbreak Events and Associated Polar Mesoscale Cyclogenesis over the North Atlantic Region
(Journal article; Peer reviewed, 2021)Equatorward excursions of cold polar air masses into ice-free regions, so-called Cold Air Outbreaks (CAO), are frequently accompanied by the development of severe mesoscale weather features. Focusing on two key regions, ... -
Characteristics of cyclones following different pathways in the Gulf Stream region
(Journal article; Peer reviewed, 2021)The Northwest Atlantic is a region of strong temperature gradients and hence is a favourable location for wintertime cyclone intensification co-located with the storm track. The temperature gradient is associated with both ... -
Characteristics of DNA polymerase I from an extreme thermophile, Thermus scotoductus strain K1
(Journal article; Peer reviewed, 2021)Several native and engineered heat-stable DNA polymerases from a variety of sources are used as powerful tools in different molecular techniques, including polymerase chain reaction, medical diagnostics, DNA sequencing, ... -
Characteristics of fragmented aurora-like emissions (FAEs) observed on Svalbard
(Journal article; Peer reviewed, 2021)This study analyses the observations of a new type of small-scale aurora-like feature, which is further referred to as fragmented aurora-like emission(s) (FAEs). An all-sky camera captured these FAEs on three separate ... -
Characteristics of Pyrosequencing Data – Analysis, Methods, and Tools
(Doctoral thesis, 2013-06-17)The introduction of this thesis provides background knowledge on the 454 sequencing technology and a detailed review of the most relevant sequencing artifacts. Chapter 1 puts the 454 sequencing technology into a historical ... -
Characteristics of the flank magnetopause: Cluster observations
(Peer reviewed; Journal article, 2014-11)The magnetopause is a current sheet forming the boundary between the geomagnetic field on one side and the shocked solar wind on the other side. This paper discusses properties of the low-latitude dawn and dusk flanks of ... -
Characteristics of the Flank Magnetopause: MMS Results
(Journal article; Peer reviewed, 2020)We have used a large number of magnetopause crossings by the Magnetospheric Multiscale (MMS) mission to investigate macroscopic properties of this current sheet, with emphasis on the flanks of the magnetopause. Macroscopic ... -
Characteristics of the Flank Magnetopause: THEMIS Observations
(Peer reviewed; Journal article, 2019-05-30)The terrestrial magnetopause is the boundary that shields the Earth's magnetosphere on one side from the shocked solar wind and its embedded interplanetary magnetic field on the other side. In this paper, we show observations ... -
Characterization and application of 3D silicon microdosimeters
(Doctoral thesis, 2020-12-11)The effect of ionizing radiation on biological matter differs significantly between the various types of radiation. For the same amount of absorbed energy, some forms of radiation are much more effective in inducing ... -
Characterization and correction of errors in measured inherent optical properties: Multiple scattering errors in LISST-VSF measurements
(Doctoral thesis, 2023-11-28)Viktigheten av nøyaktige målinger av interaksjoner mellom lys og partikler i marine miljøer har økt de siste årene grunnet den økende interessen for miljøovervåkning, satellittmålinger, og trådløs optisk undervannskommunikasjon. ... -
Characterization and Correction of Evaporative Artifacts in Speleothem Fluid Inclusion Isotope Analyses as Applied to a Stalagmite From Borneo
(Journal article; Peer reviewed, 2023)Fluid inclusion water isotope measurements in speleothems have great potential for paleoclimate studies as they enable the reconstruction of precipitation dynamics and land temperatures. Several previous observations, ... -
Characterization and finite element modelling of piezoelectric ceramic discs vibrating in air, for a frequency range including the first two radial modes.
(Master thesis, 2021-08-13)The objectives of this work is to measure and characterize the electrical and acoustical behaviours of a piezoelectric ceramic disk of type Pz27, across a frequency spectrum covering the first two radial modes, and to ...