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1000111 0001010 0000101 0000011 1000100 0000101

(Amsterdam University Press, ) Allcijn,W. F. H.

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150 MAANDBLAD VOOR ACCOUNTANCY EN BEDRIJFSHUISHOUDKUNDE

(Amsterdam University Press, ) De Haan,J. P.; Philips,R.; Spangenberg,J. C.; Groeneveld,G. L.

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180 Wrapped Tubes

(Journal of Universal Computer Science, ) Edelsbrunner,Herbert

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1953 10 385-386

(Amsterdam University Press, ) Moret,B.

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1955 09 329-330

(Amsterdam University Press, ) Mey,J. L.

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1957 07 269-269

(Amsterdam University Press, ) Kruisinga,H. J.

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1970 01 31-38

(Amsterdam University Press, ) Ruding,H O C R

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1972 01 1-1

(Amsterdam University Press, ) MAB,

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25 jaar externe verslaggevingstheorie

(Amsterdam University Press, ) Feenstra,D. W.

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25 JAAR POST DOCTORALE OPLEIDING VOOR BELASTINGKUNDIGE

(Amsterdam University Press, ) Mes,H. M. E.

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34 MAANDBLAD VOOR ACCOUNTANCY EN BEDRIJFSHUISHOUDKUNDE REPERTORIUM VAN TIJDSCHRIFT-LITERATUUR OP HET GEBIED VAN ACCOUNTANCY EN BEDRIJFSHUISHOUDKUNDE

(Amsterdam University Press, ) Behrens,M.; Groeneveld,G. L.; De Haan,J. P.; Premsela,E. M.

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3D Model of the Winding Product

(НИЯУ МИФИ, 2024) Tomilova, O. V.; Rokotov, N. V.

The article presents the results of computer modeling of a winding product. It describes the method for creating a 3D model based on a series of flat sections passing through the axis of the package. The issues encountered during 3D modeling and their solutions are discussed. The authors propose using the continued fraction method to describe the structure of winding products and optimize the model for subsequent calculations in CAE programs. The article provides information about the process of creating a 3D model of the winding product, as well as the possibilities for reducing computational resources required for modeling. The results of computer modeling of various winding types are presented. In the conclusion, the authors assert that the developed method for analyzing and synthesizing the structure of precision winding using the continued fraction approach allows for the exploration of various winding types and the creation of optimal 3D models that replicate their structure. These models can be used for further research and as digital models of winding products.

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3D Visualization of Asynchronous Many-Task Scheduling Algorithm

(НИЯУ МИФИ, 2023) Vasev, P. A.

The paper is devoted to the issue of visualization of the algorithm for scheduling parallel tasks. Task scheduling is a key part of the online visualization and parallel programming environment developed by the author. When programming a parallel version of one mathematical application, a suspicion arose that the scheduling algorithm does not optimally distribute the load between the workers. In this connection, it was decided to visualize its work in order to see the overall picture and possible problem areas of the algorithm. The constructed view successfully coped with the problem, and the scheduling algorithm was improved.

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3D-Cloning of Core Plug Structures: Insights and Challenges into FDM and DLP Printing Based on Microtomography Data

(НИЯУ МИФИ, 2025) Kadyrov, R. I.; Nguyen, T. H.; Statsenko, E. O.; Kharin, N. V.

This study explores the use of FDM (Fused Deposition Modeling) and DLP (Digital Light Processing) 3D printing techniques to create accurate replicas of core plugs from reservoir rock structures based on µCT (microtomography) scans. Due to the challenges in obtaining core plug samples for reservoir characterization, this research aims to develop a cost-effective and reusable alternative by replicating the pore structure of natural rocks for use in experimental studies. A carbonate core plug was µCT-scanned to obtain a high-resolution 3D digital model of its pore structure, which was then digitally processed to simplify its complex pore geometry for 3D printing. The model was printed using FDM with 0.2 mm and 0.4 mm nozzles, as well as DLP techniques. Both methods were evaluated by re-scanning the printed samples with µCT and analyzing their structural, porosity, and permeability characteristics. FDM printing demonstrated the ability to replicate larger pore structures, but the presence of interlayer gaps resulted in inflated porosity and permeability values compared to the original core plug, and fine pore features were inconsistently replicated across multiple prints. DLP printing, while more accurate in capturing morphology and finer details, also exhibited variability in the reproduction of small pore elements. Furthermore, cracks were observed in DLP samples due to stresses during resin curing, and the retention of residual resin in pores affected permeability and reduced effective porosity. The study highlights the limitations of both FDM and DLP methods in fully reproducing the complexity of pore networks, particularly at fine scales. The results point to the need for technological improvements in both methods to enhance the accuracy and reproducibility of 3D-printed core replicas.

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3D-Cloning of Core Plug Structures: Insights and Challenges into FDM and DLP Printing Based on Microtomography Data.

(2025) Kadyrov, R. I.; Nguyen, T. H.; Statsenko, E. O.; Kharin, N. V.

This study explores the use of FDM (Fused Deposition Modeling) and DLP (Digital Light Processing) 3D printing techniques to create accurate replicas of core plugs from reservoir rock structures based on µCT (microtomography) scans. Due to the challenges in obtaining core plug samples for reservoir characterization, this research aims to develop a cost-effective and reusable alternative by replicating the pore structure of natural rocks for use in experimental studies. A carbonate core plug was µCT-scanned to obtain a high-resolution 3D digital model of its pore structure, which was then digitally processed to simplify its complex pore geometry for 3D printing. The model was printed using FDM with 0.2 mm and 0.4 mm nozzles, as well as DLP techniques. Both methods were evaluated by re-scanning the printed samples with µCT and analyzing their structural, porosity, and permeability characteristics. FDM printing demonstrated the ability to replicate larger pore structures, but the presence of interlayer gaps resulted in inflated porosity and permeability values compared to the original core plug, and fine pore features were inconsistently replicated across multiple prints. DLP printing, while more accurate in capturing morphology and finer details, also exhibited variability in the reproduction of small pore elements. Furthermore, cracks were observed in DLP samples due to stresses during resin curing, and the retention of residual resin in pores affected permeability and reduced effective porosity. The study highlights the limitations of both FDM and DLP methods in fully reproducing the complexity of pore networks, particularly at fine scales. The results point to the need for technological improvements in both methods to enhance the accuracy and reproducibility of 3D-printed core replicas.

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3D-печатные иерархические решётчатые метаматериалы: интеграция механической прочности и ультразвуковой чувствительности для биомедицинских применений

(2025) Шишковский, И. В.

Представлено комплексное исследование акустических свойств иерархических 3D-печатных метаматериалов из полилактида, разрабатываемых для применения в тканевой инженерии. Численное конечно-элементное моделирование проведено для изучения распространения ультразвуковых волн в диапазоне 1–9 МГц сквозь решётчатые структуры типа октаэдр, соты или алмаз. Рассмотрено влияние геометрической топологии и эффективных физических параметров (модуля Юнга, плотности, скорости звука) на распределение акустического давления. Показано, что изученные типы трижды периодических структур с минимальной поверхностью демонстрируют уникальные паттерны локализации и рассеяния энергии ультразвукового поля, что открывает возможности для использования таких структур в качестве скаффолдов или при контролируемом высвобождении лекарств с диагностической функцией. Полученные результаты позволяют прогнозировать взаимодействие пористых решётчатых метаматериалов с ультразвуком и оптимизировать их применение в динамике с помощью неинвазивной ультразвуковой диагностики.