Browsing Fysisk institutt by Title
Now showing items 14-33 of 3672
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)In this article, a low-power, radiation-hard front-end circuit for monolithic pixel sensors, designed to meet the requirements of low noise and low pixel-to-pixel variability, the key features to achieve high detection ...
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A circuit for simultaneous measurements of skin electrical conductance, susceptance, and potential (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)A circuit is presented that enables measurement of skin electrical conductance, susceptance, and potential simultaneously beneath the same monopolar electrode. Example measurements are shown to confirm the function of the ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)This work demonstrates how a multi-electrode array (MEA) dedicated to four-electrode bioimpedance measurements can be implemented on a complementary metal–oxide–semiconductor (CMOS) chip. As a proof of concept, an 8 × 8 ...
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(Journal article / Tidsskriftartikkel / SubmittedVersion, 2020)The phase-field crystal model in an amplitude equation approximation is shown to provide an accurate description of the deformation field in defected crystalline structures, as well as of dislocation motion. We analyze in ...
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A common [18F]-FDG PET radiomic signature to predict survival in patients with HPV-induced cancers (Journal article / Tidsskriftartikkel / SubmittedVersion, 2023)Locally advanced cervical cancer (LACC) and anal and oropharyngeal squamous cell carcinoma (ASCC and OPSCC) are mostly caused by oncogenic human papillomaviruses (HPV). In this paper, we developed machine learning (ML) ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)Pituitary endocrine cells fire action potentials (APs) to regulate their cytosolic Ca2+ concentration and hormone secretion rate. Depending on animal species, cell type, and biological conditions, pituitary APs are generated ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)Variability in sea ice conditions, combined with strong couplings to the atmosphere and the ocean, lead to a broad range of complex sea ice dynamics. More in-situ measurements are needed to better identify the phenomena ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)To improve accelerated MRI reconstruction through a densely connected cascading deep learning reconstruction framework. Materials and methods A cascading deep learning reconstruction framework (reference model) was modified ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)This paper presents a new efficient algorithm based on the spectral-Galerkin numerical approximations complemented by a magnetohydrodynamics–Boussinesq model and a new solver for studying the development of a Rayleigh–Taylor ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)We review and extend a hierarchy of relaxation models for two-phase flow. The models are derived from the non-equilibrium Baer–Nunziato model, which is endowed with relaxation source terms to drive it towards equilibrium. ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)A typical proton CT (pCT) detector comprises a tracking system, used to measure the proton position before and after the imaged object, and an energy/range detector to measure the residual proton range after crossing the ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)Abstract It is well known that multicomponent catalysts can improve catalytic performance, however their rational design and precise control of catalytic activities by varying the composition of the elements is challenging. ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)The construction of an electron–positron collider 'Higgs factory' has been stalled for a decade, not because of feasibility but because of the cost of conventional radio-frequency (RF) acceleration. Plasma-wakefield ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
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A modified dividing local Gaussian processes algorithm for theoretical particle physics applications (Chapter / Bokkapittel / PublishedVersion; Peer reviewed, 2022)We explore the use of dividing local Gaussian processes in the context of theoretical particle physics. We adapt an existing algorithm to the specific problem, trading some speed for a better precision. An intensive ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)Objective: Severe hypoglycemia is the most serious acute complication for people with type 1 diabetes (T1D). Approximately 25% of people with T1D have impaired ability to recognize impending hypoglycemia, and nocturnal ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)A novel mathematical approach has been developed to complete the inversion of the Biot-Savart law in one- and two-dimensional cases from measurements of the perpendicular component of the magnetic field using the well-developed ...
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A new software implementation of the Oslo method with rigorous statistical uncertainty propagation (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)The Oslo method comprises a set of analysis techniques designed to extract nuclear level density and average -decay strength function from a set of excitation-energy tagged -ray spectra. Here we present a new software ...
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A node-splitting lattice spring model coupled with a J-integral formulation as a fracture criterion (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)A global energy minimization criterion based on Griffith’s theory is introduced for the node-splitting lattice spring model. The fracture criterion is computed by both direct numerical simulations of energy release rate G ...