Blar i NTNU Open på tittel
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Impaired NDRG1 functions in Schwann cells cause demyelinating neuropathy in a dog model of Charcot-Marie-Tooth type 4D
(Peer reviewed; Journal article, 2021)Mutations in the N-myc downstream-regulated gene 1 (NDRG1) cause degenerative polyneuropathy in ways that are poorly understood. We have investigated Alaskan Malamute dogs with neuropathy caused by a missense mutation in ... -
Impaired oxidative stress response characterizes HUWE1-promoted X-linked intellectual disability
(Journal article; Peer reviewed, 2017)Mutations in the HECT, UBA and WWE domain-containing 1 (HUWE1) E3 ubiquitin ligase cause neurodevelopmental disorder X-linked intellectual disability (XLID). HUWE1 regulates essential processes such as genome integrity ... -
Impaired right ventricular function in long-term survivors of allogeneic haematopoietic stem-cell transplantation
(Journal article; Peer reviewed, 2021)Aims Survivors of allogeneic haematopoietic stem-cell transplantation (allo-HSCT) are at higher risk of cardiovascular disease. We aimed to describe right ventricular (RV) systolic function and risk factors for RV dysfunction ... -
Impaired skeletal health and neuromuscular function among amphetamine users in clinical treatment
(Journal article; Peer reviewed, 2016)Summary This study examined musculoskeletal health in amphetamine users, compared with healthy age-matched controls. We show that amphetamine users have reduced bone mass at several skeletal sites and attenuated maximal ... -
Impaired verbal learning is associated with larger caudate volumes in early onset schizophrenia spectrum disorders
(Journal article, 2015)Background: Both brain structural abnormalities and neurocognitive impairments are core features of schizophrenia. We have previously reported enlargements in subcortical brain structure volumes and impairment of ... -
Impairments in spatial navigation during walking in patients 70 years or younger with mild stroke
(Peer reviewed; Journal article, 2020)Background: Spatial navigation, the ability to determine and maintain a route from one place to another, is needed for independence in everyday life. Knowledge about impairments in spatial navigation in people with mild ... -
Impairments in trunk muscles performance and proprioception in older adults with hyperkyphosis
(Journal article, 2022)BACKGROUND AND OBJECTIVES Thoracic hyperkyphosis is one of the most common postural deformities in the geriatric population. This study investigated whether trunk proprioception, muscle strength, and endurance differ between ... -
Impala (Aepyceros melampus) responses to anthropogenic activities - An accelerometry approach in the Serengeti ecosystem
(Master thesis, 2019)Menneskelig påvirkning av verneområder og nærliggende områder øker trykket på økosystemtjenestene som dyrelivet er avhengig av. I Serengeti er impala under konstant press fra mennesker på forskjellige måter avhengig av ... -
Impedance and Noise of Passive and Active Dry EEG Electrodes: A Review
(Peer reviewed; Journal article, 2020)Dry electrodes are a promising solution for prolonged EEG signal acquisition, whereas wet electrodes may lose their signal quality in the same situation and require skin preparation for set-up. Here, we review the impedance ... -
Impedance computation for power electronic converters with Hilbert transform
(Chapter, 2017)The Hilbert transform (HT) is widely used in signal processing and it has been found as a good tool to understand some physical phenomena in electrical systems. This paper presents a methodology to derive the input impedance ... -
Impedance Diagrams of the Electrodes in the Polymer Electrolyte Membrane Fuel Cell
(Doktoravhandlinger ved NTNU, 1503-8181; 2007:179, Doctoral thesis, 2007)The objective of this thesis was to better understand the electrodes of the polymer electrolyte membrane fuel cell (PEMFC), and especially the anode. We were interested in how CO poisoning affected the fuel cell and therefore ... -
Impedance Modeling and Stability Analysis of Grid-tied Universal Droop Control Inverter
(Chapter; Peer reviewed, 2019)This paper presents an impedance modeling and small-signal stability analysis of the grid-tied Universal Droop Control (UDC) inverter. The -impedance model of the UDC inverter is derived analytically and, which is verified ... -
Impedance Modelling and Stability Analysis of Virtual Synchronous Machine-based Wind Energy Conversion System
(Master thesis, 2022)Ettersom antallet kraftelektronikkomformere øker på grunn av økningen i variabel fornybar energi, har det en betydelig innvirkning på dynamikken og stabiliteten til kraftsystemer. Siden kraftsystemer tradisjonelt domineres ... -
Impedance scanning with chirps for single-phase converters
(Chapter, 2022)Impedance scanning of single-phase AC-DC converters is challenging due to frequency couplings, which map one injection frequency to a multiple of output frequencies. Single-tone injections are often preferred over wideband ... -
Impedance-based Analysis of Interconnected Power Electronics Systems: Impedance Network Modeling and Comparative Studies of Stability Criteria
(Journal article; Peer reviewed, 2019)Impedance is an intuitive and effective way for dynamical representation of power electronics devices (e.g. VSCs). One of its strengths towards others is the natural association with circuits. However, impedances of VSCs ... -
Impedance-based Methods for Small-signal Analysis of Power Electronics Dominated Systems
(Doctoral theses at NTNU;2018:292, Doctoral thesis, 2018)Kraftsystemet er i endring - vi manglar metodar for å analysere det! Kraftnettet har tradisjonelt hatt ein struktur med store produksjonseiningar tilkopla høgspentnettet, og rollen til nettet har vore å føre denne ... -
Impedance-Based Stability Analysis and Adaptive Control of Grid-Connected Converter
(Master thesis, 2020)De siste tiårene har andelen av kraftelektronikk tilkoblet strømnettet økt drastisk, og denne trenden er for- ventet å fortsette i årene som kommer. Hovedårsaken til er dette er den økte integrasjonen av fornybare ... -
Impedance-Based Stability Analysis of Systems with the Dominant Presence of Distributed Power Sources
(Chapter, 2022)In recently developed electric power systems, numerous distributed generators (DGs) are connected via power electronic devices. Because these devices can generate harmonics and nonlinear distortion, traditional model-based ... -
Impedance-Based Stability Evaluation of Virtual Synchronous Machine Implementations in Converter Controllers
(Chapter, 2018)This paper presents a stability evaluation of two Virtual Synchronous Machine (VSM) implementations in the control of Voltage Source Converters (VSCs): a current-controlled (CCVSM) and a voltage-controlled (VCVSM) version ... -
Impeller Stage Instabilities
(Master thesis, 2015)Since the discovery of Ekofisk in 1969 the Norwegian petroleum industry has been an important part of Norway s economical growth and industrial development. Today, Norway is the third largest gas exporter in the world, and ...