Results 1 to 10 of about 71,267 (166)
Control rod strategy for long-term small rod-controlled pressurized water reactors
He jishuBackgroundSmall rod-controlled pressurized water reactors have foregone the use of soluble boron and heavily rely on control rods and burnable poison rods for reactor control.PurposeThis study aims to explore the influence of control rods on the key ...
WU Zhiqiang +6 more
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Trudy Odesskogo Politehničeskogo Universiteta, 2017 The article presents results of research (thermal-hydraulic analysis) of initiating events (regulatory regimes), associated with the uncontrolled movement and ejection of control rods that had previously not been considered quantitatively in the ...
О. С. Мазурок
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Control rods effect analyses on thermo-hydraulic safety parameters in TRR [PDF]
مجله علوم و فنون هستهای, 2020 In this study, the effect of control rods on TRR safety parameters was investigated in both cases of static and transient behavior. In this paper, the effect of the control rods movements (70%) on the power peaking was used in the form of the normalized ...
A. Lashkari +2 more
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Flattening of the Power Distribution in the HTGR Core with Structured Control Rods
Energies, 2021 Control rods (CRs) have a significant influence on reactor performance. Withdrawal of a control rod leaves a region of the core significantly changed due to lack of absorber, leading to increased fission rate and later to Xe135 buildup. In this paper, an
Michał Górkiewicz, Jerzy Cetnar
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Rod Fracture in Magnetically Controlled Growing Spine Rods
Journal of Pediatric Orthopaedics, 2023 Background: The mechanisms of fracture in magnetically controlled growing rods (MCGRs) and the risk factors associated with this are poorly understood. This retrospective analysis of explanted MCGRs aimed to add understanding to this subject.
Martina Tognini +6 more
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Saudi Dental Journal, 2023 Introduction: Laser micromachining of titanium and its alloys can create micro-grooves with sizes similar to cell diameter of about 10 μm. Its coating with arginine-glycine-aspartic acid (RGD) may enhance cellular spreading and adhesion. This study aimed
Mohamed Ahmed Alkhodary
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CONTROL PROBLEM FOR A PARABOLIC SYSTEM WITH UNCERTAINTIES AND A NON-CONVEX GOAL
Ural Mathematical Journal, 2023 We consider the control problem for a parabolic system that describes the heating of a given number of rods. Control is carried out through heat sources that are located at the ends of the rods (only at one end or at both).
Igor’ V. Izmest’ev +1 more
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A SIMPLIFIED SMAHTR BENCHMARK PROBLEM SET [PDF]
EPJ Web of Conferences, 2021 The Small, Modular Advanced High Temperature Reactor (SmAHTR) is a preconceptual design for a fluoride salt-cooled small modular reactor (SMR) [1]. In this paper, a stylized 2D benchmark problem set has been created based on SmAHTR.
Reed K. Lisa, Rahnema Farzad
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Глобальная ядерная безопасность, 2022 The compensation for the excess reactivity in the pressurized water reactors WWER is realized with high neutron absorber materials. The traditional excess reactivity regulation methods lead to unfeasible neutron utilization and reduce the breeding ...
A. I. Elazaka +2 more
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Rod Lengthening With the Magnetically Controlled Growing Rod [PDF]
Spine, 2017 Study Design. Prospective study. Objective. To identify the factors that are associated with rod slippage and to study the pattern of achieved length gain with a standard distraction methodology. Summary of Background Data.
Kwan, KYH +5 more
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