Search Results - "Bokov, Pavel"

Dual number automatic differentiation as applied to two-group cross-section uncertainty propagation by Bokov, Pavel, Botes, Danniell, Groenewald, Suzanne

“…This work addresses the problem of propagating uncertainty from group-wise neutron cross-sections to the results of neutronics diffusion calculations…”
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Dual number automatic differentiation as applied to two-group cross-section uncertainty propagation by Bokov, Pavel, Botes, Danniell, Groenewald, Suzanne

“…This work addresses the problem of propagating uncertainty from group-wise neutron cross-sections to the results of neutronics diffusion calculations…”
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A study of the performance of a sparse grid cross section representation methodology as applied to MOX fuel by Botes, Danniëll, Chifamba, Saymore, Bokov, Pavel M.

“…•We interpolate few group homogenized cross sections of a PWR MOX assembly.•Two different group structures are investigated.•Representations are built for…”
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Experimental study of using microwave reflex-radar level gauges for liquid metal coolants by Melnikov, Vladimir I., Bokova, Tatyana A., Ivanov, Vadim V., Marov, Aleksandr R., Lobaeva, Natalia A., Kvashennikov, Anatoly S., Bokov, Pavel A., Volkov, Nikita S.

“…The article presents the results of work aimed at solving the problem of measuring the coolant level in miscellaneous tanks of liquid-metal-cooled reactor…”
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Components of small and medium sized HLMC reactor plant circuits by Beznosov, Aleksander, Bokova, Tatyana, Bokov, Pavel

“…Small and medium sized lead and lead-bismuth cooled reactors currently under development in Russia are Generation IV reactors. This paper presents a review and…”
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Experimental studies into the performance of the lead coolant axial pump wet ends to justify main circulation pumps for the HMLC reactor plant circuits by Beznosov, Aleksandr V., Bokov, Pavel A., Lvov, Aleksandr V., Bokova, Tatyana A., Volkov, Nikita S., Marov, Aleksandr R.

“…The paper presents the results of the studies to justify the design solutions for the main circulation pumps of the heavy liquid-metal cooled reactor plant…”
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Experimental studies into the dependences of the axial lead coolant circulation pump performance on the pump straightening device parameters by Beznosov, Aleksander V., Lvov, Aleksander V., Bokov, Pavel A., Bokova, Tatyana A., Lukichev, Nikita S.

“…The paper presents the results of experimental studies into the dependences of the axial pump performance (delivery rate, head, efficiency) in lead coolant on…”
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Cross-section parameterization of the pebble bed modular reactor using the dimension-wise expansion model by Živanović, Rastko, Bokov, Pavel M.

“…This paper discusses the use of the dimension-wise expansion model for cross-section parameterization. The components of the model were approximated with…”
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Asymptotic Analysis for the Variance-Based Global Sensitivity Indices by Bokov, Pavel M.

“…We discuss the estimation of the uncertainty and sensitivity parameters for a model response under the assumption that the input variables are normally…”
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Computational Method for Global Sensitivity Analysis of Reactor Neutronic Parameters by Adetula, Bolade A., Bokov, Pavel M.

“…The variance-based global sensitivity analysis technique is robust, has a wide range of applicability, and provides accurate sensitivity information for most…”
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AN OPTIMISATION-BASED DECISION SUPPORT SYSTEM FRAMEWORK FOR MULTI-OBJECTIVE IN- CORE FUEL MANAGEMENT OF NUCLEAR REACTOR CORES by Schlünz, Evert Barend, Bokov, Pavel M, van Vuuren, Jan Harm

“…The notion of in-core fuel management (ICFM) involves decision making in respect of the specific arrangement of fuel assemblies in a nuclear reactor core. This…”
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Linear Electro-Optic Effect in Electroreflectance Spectra of AlGaN/InGaN/GaN Light Emitting Diodes Structures by Avakyants, Lev P, Aslanyan, Artem E, Bokov, Pavel Yu, Chervyakov, Anatoly V, Polozhentsev, Kirill Yu

“…The linear electro-optic effect in InGaN/AlGaN/GaN pn-heterostructures for light emitting diodes, grown by metal--organic chemical vapor deposition on sapphire…”
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Tube-wave propagation in a fluid-filled borehole generated by a single point force applied to the surrounding formation by Bokov, Pavel M, Ionov, Andrei M

“…Propagation of tube waves in an infinite fluid-filled borehole, generated by a single-force point source placed in the elastic surrounding formation, is…”
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Impact of AlN Spacer on Metal--Semiconductor--Metal Pt--InAlGaN/GaN Heterostructures for Ultraviolet Detection by Brazzini, Tommaso, Pandey, Saurabh, Romero, Maria Fatima, Bokov, Pavel Yu, Feneberg, Martin, Tabares, Gema, Cavallini, Anna, Goldhahn, Rüdiger, Calle, Fernando

“…We report on metal--semiconductor--metal (MSM) photodetectors (PDs) fabricated on InAlGaN/GaN two-dimensional electron gas (2DEG) heterostructures. Electrical…”
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Clustering and uncertainty analysis to improve the machine learning-based predictions of SAFARI-1 control follower assembly axial neutron flux profiles by Moloko, Lesego E., Bokov, Pavel M., Wu, Xu, Ivanov, Kostadin N.

“…The goal of this work is to develop accurate Machine Learning (ML) models for predicting the assembly axial neutron flux profiles in the SAFARI-1 research…”
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Prediction and uncertainty quantification of SAFARI-1 axial neutron flux profiles with neural networks by Moloko, Lesego E., Bokov, Pavel M., Wu, Xu, Ivanov, Kostadin N.

“…In this study, Deep Neural Networks (DNNs) are used to predict the assembly axial neutron flux profiles in the SAFARI-1 research reactor, with quantified…”
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Demonstration of prospective application of the dual number automatic differentiation for uncertainty propagation in neutronic calculations by Bokov, Pavel M., Groenewald, Suzanne A., Botes, Danniëll, Adetula, Bolade A.

“…•Overview of the dual number (DN) arithmetic and DN automatic differentiation (DNAD).•Dual number arithmetic is applied in solving infinite homogeneous…”
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Polynomial interpolation of few-group neutron cross sections on sparse grids by Botes, Danniëll, Bokov, Pavel M.

“…•We interpolate few group homogenized cross sections of three different LWRs.•Multivariate hierarchical interpolation is based on mean weighted residual…”
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Study of built-in electric field in active region of GaN/InGaN/AlGaNLEDs by electroreflectance spectroscopy by Avakyants, Lev P., Aslanyan, Artem E., Bokov, Pavel Yu, Chervyakov, Anatoly V., Polozhentsev, Kirill Yu

“…Nitride-based heterostructures with InGaN/GaN multiple quantum wells in active region were investigated by electroreflectance spectroscopy. Two spectral lines…”
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Automated few-group cross-section parameterization based on quasi-regression by Bokov, Pavel M.

“…This work addresses the quasi-regression technique for parameterization of few-group neutron cross-sections. The objective of this work is to create a…”
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