Browsing NTNU Open by Title
Now showing items 23268-23287 of 100934
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Directed Energy Deposition versus Wrought Ti-6Al-4V: A Comparison of Microstructure, Fatigue Behavior, and Notch Sensitivity
(Journal article; Peer reviewed, 2019)Laser Engineered Net Shaping (LENS), a Direct Energy Deposition (DED) additive manufacturing process is a 3D manufacturing process generally used to produce fully dense parts or to repair/add additional material to an ... -
Directed Lithiation of Protected 4-Chloropyrrolopyrimidine: Addition to Aldehydes and Ketones Aided by Bis(2-dimethylaminoethyl)ether
(Peer reviewed; Journal article, 2023)Pyrrolopyrimidines are important scaffolds for the preparation of bioactive molecules. Therefore, developing efficient and flexible ways for selective functionalization of the pyrrolopyrimidine skeleton is of interest. We ... -
Direction Following Control of Planar Snake Robots Using Virtual Holonomic Constraints
(Journal article; Peer reviewed, 2015)This paper investigates the problem of direction following for planar snake robots. The control objective is to regulate the linear velocity vector of the snake robot to a constant reference while guaranteeing boundedness ... -
The Direction of Updatable Encryption Does Not Matter Much
(Peer reviewed; Journal article, 2020)Updatable encryption schemes allow for key rotation on ciphertexts. A client outsourcing storage of encrypted data to a cloud server can change its encryption key. The cloud server can update the stored ciphertexts to the ... -
Direction- and Angle-Assisted Buttonhole Cannulation of Arteriovenous Fistula in Hemodialysis Patients: A Multicenter Randomized Controlled Trial
(Peer reviewed; Journal article, 2022)Rationale & objective: Arteriovenous fistula cannulation with the buttonhole technique is often preferred by patients but has been associated with an increased infection risk. Guidelines disagree on whether it should be ... -
Directional Decomposition of Images: Implementation Issues Including GPU Techniques
(Master thesis, 2008)Directional decomposition of an image consists of separating it into several components, each containing directional information in some specific directions. It has many applications in digital image processing, such as ... -
Directional Drilling - Advanced Trajectory Modelling
(Master thesis, 2014)SummaryDrilling operations are a significant cost in the process of recovering hydrocarbons. The operations are advanced and associated with large HSE and financial risks. The main objectives in a successful drilling ... -
Directional fatigue behaviour of maraging steel grade 300 produced by laser powder bed fusion
(Peer reviewed; Journal article, 2021)Surfaces of metals produced by additive manufacturing (AM) are known to be rough and populated with defects, this is, in particular, true for downward-facing (down-skin) surfaces. When dealing with the fatigue of as-built ... -
Directional sound for video conferencing systems: A pragmatic approach to sound field reproduction
(Master thesis, 2009)The summary will be put here later on... -
Directional turnover towards larger-ranged plants over time and across habitats
(Peer reviewed; Journal article, 2021)Species turnover is ubiquitous. However, it remains unknown whether certain types of species are consistently gained or lost across different habitats. Here, we analysed the trajectories of 1827 plant species over time ... -
Directional wave spectrum estimation with ship motion responses using adversarial networks
(Peer reviewed; Journal article, 2022)The external environmental conditions around a vessel are essential for efficient and safe ship operation, among which the sea state is of key importance. Considering the ship as a large wave buoy, the sea state can be ... -
Directional Wells in Shallow Reservoirs using Curved Conductors and Hammering - Concept and analysis of a novel installation method for curved conductors
(Master thesis, 2015)One of the challenges encountered when planning wells in shallow reservoirs in the arctic is the development of a plan to drill a relief well. According to NORSOK such a plan is required to be in place prior to the initiation ... -
Directional Zone Selectivity in Low Voltage Networks
(Master thesis, 2015)In low voltage networks, radial network structure with circuit breakers in series and time-current selectivity are quite common to deal with the challenge of selectivity. This is an easy and well-known technique that works ... -
Directionality and column arrangement principles of precipitates in Al-Mg-Si-(Cu) and Al-Mg-Cu linked to line defect in Al
(Journal article, 2016)In the structures of all metastable precipitates in Al-Mg-Cu and Al-Mg-Si alloys, we find that column surrounding of an element column in the needle/lath direction order according to simple principles. Advanced transmission ... -
Directions for Research on Climate and Conflict
(Peer reviewed; Journal article, 2020)The potential links between climate and conflict are well studied, yet disagreement about the specific mechanisms and their significance for societies persists. Here, we build on assessment of the relationship between ... -
Directive under-water transducer design for Doppler velocity log
(Master thesis, 2019)En 1 MHz direktiv undervannstransduser for bruk i DVL er designet, simulert, konstruert og testet gjennom målinger i denne oppgaven. Designet følger teorien for en piezoelektrisk disk som opererer i tykkelsesmodi, omsluttet ... -
Directors of Creation: An Anthropology of Capitalist Conjunctures in the Contemporary
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:299, Doctoral thesis, 2008) -
Direkte fundamentering på berg
(Master thesis, 2020)Direkte fundamentering på berg er et tema som er viet lite oppmerksomhet. Oppgaven er et bidrag i retningen av økt fokus og forbedret praksis. Det er gjort analyser av samvirket mellom fundament og berg for å utarbeide ... -
Direkte og indirekte utgifter ved behandlingsrettet informasjonsbehandling i det norske helse- og pleiesystemet et estimat.
(Master thesis, 2012)Helse- og sosialsektoren i Norge sliter med at den blir større og mer kompleks. Det er mangeulike profesjoner, i ulike institusjoner og forvaltningsnivå, som må samhandle over både tidog sted. I denne oppgaven presenterer ... -
Direkte programoverføring av mediafiler via trådløse nettverk: NRK som kontribusjonsaktør via Trådløse Trondheim
(Master thesis, 2008)Ulike regimer for komprimering og koding av media har hatt stor utvikling i den seneste tid, dette i samband med Trådløse Trondheim A/S sitt initiativ om å dekke bykjernen i Trondheim med trådløst nett har medført nye ...