@article{DreyerMotocKoehleretal.2023, author = {Dreyer, Christian and Motoc, Dana Luca and Koehler, Mathias and Goldenberg, Leonid}, title = {UV LED Curable Perfluoropolyether (PFPE)-Urethane Methacrylate Transparent Coatings for Photonic Applications: Synthesis and Characterization}, series = {Polymers}, volume = {15}, journal = {Polymers}, number = {14}, publisher = {MDPI}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-19139}, pages = {1}, year = {2023}, abstract = {The contribution aims to bring forth a novel synthesis route in developing transparent UV LED-curable coatings accounting for various exposure options. A selection of perfluoropolyether (PFPE)-urethane methacrylate and acrylate resins, free-radical photo-initiator Omnirad 2100, and two distinct silane-based crosslinking agents were blended under a weight ratio of 75:20:5 (without crosslinker) and 70:15:5:10, respectively. The coatings were cured under a UV LED 4 × 3 matrix light emitting source, in a chamber under a controlled atmosphere, by means of an in-house developed conveyor belt type platform, at different conveyor belt speeds (5, 50, 150, 250, and 500 mm/s). The morphologies of fabricated coatings were characterized by FTIR revealing high conversion rates (e.g., from 98 to 100\%) for increased exposure time as a result of the 5 or 50 mm/s values, on all combinations. Dynamic-mechanical and optical properties of UV LED-cured transparent coatings were also investigated. A negative shift of the glass transition temperature values with a decrease in exposure time, in all combinations, from about 60 °C to 30 °C, along with storage moduli lowering in the glassy plateau further favors higher exposure times for curing. The refractive indices of poly-mers were from 1.38 to 1.40, whereas the thermo-optic coefficients are showing minor changes around the value of 2.55∙10-4 K-1.}, language = {en} } @inproceedings{NechyporenkoReshetnikDzyzaetal.2023, author = {Nechyporenko, Alina and Reshetnik, Viktor and Dzyza, Alla and Alekseeva, Victoriia and Lupyr, Andrii and Gargin, Vitaliy}, title = {The Peculiarities of Measuring Bone Density in Males and Females Using Uncertainty Calculation}, series = {Proceedings of the 6th International Conference on Informatics \& Data-Driven Medicine, Bratislava, Slovakia, November 17-19, 2023}, volume = {3609}, booktitle = {Proceedings of the 6th International Conference on Informatics \& Data-Driven Medicine, Bratislava, Slovakia, November 17-19, 2023}, editor = {Shakhovska, Natalia and Kov{\´a}c, Michal and Izonin, Ivan and Chr{\´e}tien, St{\´e}phane}, publisher = {RWTH Aachen}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-19116}, pages = {249 -- 254}, year = {2023}, abstract = {The article discusses the approach to solving the problem of reducing time spent on the preparation of medical images for teaching neural networks, by reducing the time of creating masks for images. The task is considered on the example of processing images of the mucous membrane of the paranasal sinus. The specifics of the task did not allow effectively using existing software solutions. During the study, a software solution was proposed, which made it possible to radically reduce the time of creating masks for images. The article also analyzes the shortcomings of the automated creation of masks, as well as the directions of their solution. The loss of time due to the adjustment of the color palette can be reduced even more to 1-2 minutes, the average deviation is 7.61\%.}, language = {en} } @article{NechyporenkoNazaryanSemkoetal.2021, author = {Nechyporenko, Alina and Nazaryan, Rosana and Semko, Galyna and Lupyr, Andrii and Yurevych, Nadiia and Fomenko, Yuliia and Kostiukov, Eduard and Alekseeva, Victoriia}, title = {Application of spiral computed tomography for determination of the minimal bone density variability of the maxillary sinus walls in chronic odontogenic and rhinogenic sinusitis}, series = {Ukrainian Journal of Radiology and Oncology}, volume = {29}, journal = {Ukrainian Journal of Radiology and Oncology}, number = {4}, issn = {2708-7166}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-19121}, pages = {65 -- 75}, year = {2021}, abstract = {Background. There are many questions regarding the peculiarities of the course of odontogenic maxillary sinusitis, the likelihood of complications and the correct dosage of load during dental implantation. Purpose - to identify changes in minimal bone density in chronic odontogenic maxillary sinusitis and to compare it with chronic rhinogenic catarrhal maxillary sinusitis and physiological state of maxillary sinus. Materials and Methods. Our study involved 10 patients with chronic odontogenic maxillary sinusitis, 10 patients with chronic maxillary non-polyposis sinusitis of rhinogenic etiology, combined with hyperplasia of the sinus mucosa up to 1 cm. The control group comprised 10 patients with physiological condition of maxillary sinuses. In all subjects minimal bone density of superior, medial and inferior walls of maxillary sinus was analyzed. Results. The study showed that the maximum in physiological conditions is the minimal density of the upper wall of the maxillary sinus, the minimum is the lower wall. The minimal density of the lower wall was shown to undergo a statistically significant reduction in chronic catarrhal maxillary sinusitis only by 2\%, the upper by 5\%, the medial by 4\% compared with the intact sinus, but with the odontogenic nature of maxillary sinusitis, this figure was 31\% in the lower wall, 27\% in the medial region. Only the density of the upper wall of the maxillary sinus remained quite stable, it decreased relative to the physiological one only by 6\%. Conclusions. Minimal physiological densitometric parameters of lower, medial and upper walls were calculated. The reduction of minimal density of bone tissue in the cases of rhinogenic chronic catarrhal maxillary sinusitis. In the cases of chronic odontogenic maxillary sinusitis, maximum significant decrease of minimal density of both lower and medial walls is determined.}, language = {en} } @inproceedings{NechyporenkoHubarenkoHubarenkoetal.2022, author = {Nechyporenko, Alina and Hubarenko, Yevhen and Hubarenko, Maryna and Kalnytska, Violeta and Alekseeva, Victoriia and Gargin, Vitaliy}, title = {Automatic Creation of Masks for Marking Histological Images of the Epithelium of the Paranasal Sinuses}, series = {Proceedings of the 5th International Conference on Informatics \& Data-Driven Medicine, Lyon, France, November 18 - 20, 2022}, volume = {3302}, booktitle = {Proceedings of the 5th International Conference on Informatics \& Data-Driven Medicine, Lyon, France, November 18 - 20, 2022}, editor = {Shakhovska, Natalia and Chr{\´e}tien, St{\´e}phane and Izonin, Ivan and Campos, Jaime}, publisher = {RWTH Aachen}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-19024}, pages = {108 -- 119}, year = {2022}, abstract = {The article discusses the approach to solving the problem of reducing time spent on the preparation of medical images for teaching neural networks, by reducing the time of creating masks for images. The task is considered on the example of processing images of the mucous membrane of the paranasal sinus. The specifics of the task did not allow effectively using existing software solutions. During the study, a software solution was proposed, which made it possible to radically reduce the time of creating masks for images. The article also analyzes the shortcomings of the automated creation of masks, as well as the directions of their solution. The loss of time due to the adjustment of the color palette can be reduced even more to 1-2 minutes, the average deviation is 7.61\%.}, language = {en} } @inproceedings{RadutnyNechyporenkoAlekseevaetal.2021, author = {Radutny, Radiy and Nechyporenko, Alina and Alekseeva, Victoriia and Yurevych, Nadiia and Lupyr, Andrii and Gargin, Vitaliy}, title = {Complex Automatic Evaluation of the Medical Images of the Paranasal Sinuses}, series = {Proceedings of the 4th International Conference on Informatics \& Data-Driven Medicine, Valencia, Spain, November 19 - 21, 2021}, booktitle = {Proceedings of the 4th International Conference on Informatics \& Data-Driven Medicine, Valencia, Spain, November 19 - 21, 2021}, editor = {Shakhovska, Nataliya and Salazar, Addisson and Izonin, Ivan and Campos, Jaime}, publisher = {RWTH Aachen}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-19010}, pages = {182 -- 189}, year = {2021}, abstract = {Evaluation of medical images is of key importance in the work of medical staff today. Especially this problem pays important role in otolaryngology. The aim of our work was to develop an automatic complex method for assessing the state of the human paranasal sinuses. Our research included 10 people of different sex and age, who were divided into groups, taking into account the recommendations of the WHO for 2019-2021. The structure of the mucous membrane of the maxillary sinus were calculated and compared. In the course of our research, an algorithm was developed for the automatic assessment of the state of the mucous membrane of the maxillary sinus and its bone walls according to the data of the spiral computed tomography. The difference between obtained data in the manual and automatic mode is minimal.}, language = {en} } @inproceedings{NechyporenkoReshetnikShyianetal.2020, author = {Nechyporenko, Alina and Reshetnik, Viktor and Shyian, Denys and Alekseeva, Victoriia and Radutny, Radiy and Gargin, Vitaliy}, title = {Solutions to the 3D Model Problem of Pressure Measurement in the Area of Maxillary Sinus Anastomosis}, series = {Proceedings of the 3rd International Conference on Informatics \& Data-Driven Medicine}, booktitle = {Proceedings of the 3rd International Conference on Informatics \& Data-Driven Medicine}, editor = {Shakhovska, Nataliya and Campos, Jaime and Melnykova, Nataliia and Izonin, Ivan}, publisher = {RWTH Aachen}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-19007}, pages = {275 -- 284}, year = {2020}, abstract = {The ostiomeatal complex (OMC) is a key area that determines the occurrence of inflammatory processes in the paranasal sinuses (PNSs). The aim of our work was to develop a procedure for studying the OMC components in the preoperative period that allows for identification the impact of anatomical peculiarities on change of physiological pressure in the maxillary sinus. Materials and methods: The study was carried out on the basis of the otorhinolaryngological department of Kharkiv Regional Clinical Hospital in 2019-2020. It involved 100 patients of both sexes aged 20-59 years with chronic non-polyposis maxillary sinusitis. Results: The sizes of the uncinate process, the middle turbinate and the natural anastomosis were determined using the calculation of uncertainty. Basing on the data obtained, all the patients were divided into three groups. Conclusions: Changes in the size of the natural anastomosis (both an increase and its narrowing) lead to changes in pressure in the area of the anastomosis, and a decrease in ventilation in the paranasal sinuses. SCT study with subsequent 3D modeling is an informative, accurate and effective method for assessment of OMC and PNSs condition. It allows surgeons to presume the method and volume of surgery as early as at the preoperative stage, without resorting to invasive research methods.}, language = {en} } @inproceedings{ChumachenkoNechyporenkoFrohme2022, author = {Chumachenko, Dmytro and Nechyporenko, Alina and Frohme, Marcus}, title = {Impact of Russian War on COVID-19 Dynamics in Germany: the Simulation Study by Statistical Machine Learning}, series = {Proceedings of the 5th International Conference on Informatics \& Data-Driven Medicine, Lyon, France, November 18 - 20, 2022}, volume = {3302}, booktitle = {Proceedings of the 5th International Conference on Informatics \& Data-Driven Medicine, Lyon, France, November 18 - 20, 2022}, editor = {Shakhovska, Natalia and Chr{\´e}tien, St{\´e}phane and Izonin, Ivan and Campos, Jaime}, publisher = {RWTH Aachen}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-19074}, pages = {78 -- 85}, year = {2022}, abstract = {The new coronavirus COVID-19 has been spreading worldwide for almost three years. The global community has developed effective measures to contain and control the pandemic. However, new factors are emerging that are driving the dynamics of COVID-19. One of these factors was the escalation of Russia's war in Ukraine. This study aims to test the hypothesis of the influence of migration flows caused by the Russian war in Ukraine on the dynamics of the epidemic process in Germany. For this, a model of the COVID-19 epidemic process was built based on the polynomial regression method. The model's adequacy was tested 30 days before the start of the escalation of the Russian war in Ukraine. To assess the impact of the war on the dynamics of COVID-19, the model was used to calculate the forecast of cumulative new and fatal cases of COVID-19 in Germany in the first 30 days after the start of the escalation of the Russian war in Ukraine. Modeling showed that migration flows from Ukraine are not a critical factor in the growth of the dynamics of the incidence of COVID-19 in Germany, but they influenced the number of cases. The next stage of the study is the development of more complex models for a detailed analysis of population dynamics, identifying factors influencing the epidemic process in the context of the Russian war in Ukraine, and assessing their information content.}, language = {en} } @inproceedings{KnotheGeringGloddeetal.2022, author = {Knothe, Thomas and Gering, Patrick and Glodde, Ilona and Ahle, Ulrich and B{\"o}ttger, Jonas and D{\"o}beritz, Niklas}, title = {Model based Configuration of Platforms for Managing Cross- Organizational (Business) Processes}, series = {Interoperability for Enterprise Systems and Applications I-ESA workshops 2022}, booktitle = {Interoperability for Enterprise Systems and Applications I-ESA workshops 2022}, editor = {Zelm, Martin and Boza, Andr{\´e}s and Le{\´o}n, Ramona-Diana and Rodriguez-Rodriguez, Raul}, publisher = {RWTH Aachen}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-18993}, pages = {1 -- 6}, year = {2022}, abstract = {In this contribution interoperability is considered from the perspective of platforms, which have to manage cross-organisational business processes. A model-based approach for configuring a cloud platform for managing complex processes and their dependencies across different organisations is provided. The approach is applied on using FIWARE, which provides a framework of open source software platform components. The core concept is to extend the open source core data model of FIWARE by using the artefacts of an Enterprise model, describing the dependencies of processes, roles, object data and application interfaces. Based on a given use case the principal configuration was applied and validated.}, language = {en} } @article{KnieKubica2023, author = {Knie, Bernhard and Kubica, Stefan}, title = {Hinreichende Spezifikation einer KI-Funktion am Beispiel Fußg{\"a}ngerschutz}, series = {Anwendungen und Konzepte der Wirtschaftsinformatik}, journal = {Anwendungen und Konzepte der Wirtschaftsinformatik}, number = {18}, publisher = {Hochschule Luzern}, issn = {2296-4592}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-18410}, pages = {59 -- 64}, year = {2023}, abstract = {Transparenz und Erkl{\"a}rbarkeit sind essenzielle Faktoren bei der Entwicklung sicherer KI-Modelle f{\"u}r den Fußg{\"a}ngerschutz. Dies erm{\"o}glicht nicht nur eine verbesserte Akzeptanz, sondern f{\"o}rdert auch das Vertrauen der Nutzer in die pr{\"a}ventiven F{\"a}higkeiten dieser Systeme. Die Integration von Sensoren, maschinellem Lernen und fortschrittlichen Algorithmen erm{\"o}glicht eine pr{\"a}zise Analyse von Fußg{\"a}ngerverhalten und Umgebungsfaktoren. Dabei spielt die Echtzeitverarbeitung eine entscheidende Rolle, um schnell auf sich {\"a}ndernde Situationen zu reagieren. Zus{\"a}tzlich zur Technologieentwicklung betont diese Analyse die Notwendigkeit strikter Sicherheitsmaßnahmen, um potenzielle Risiken und Sicherheitsl{\"u}cken zu minimieren. Dazu geh{\"o}ren Sicherheitsprotokolle f{\"u}r die Datenspeicherung, den Modellschutz und den Zu-griff auf KI-Systeme. Die Einhaltung gesetzlicher und ethischer Richtlinien ist ein weiterer wichtiger Aspekt. Regulatorische Vorgaben und ethische Standards sollen sicherstellen, dass KI-Technologien im Automobilsektor nicht nur sicher, sondern auch im Einklang mit gesellschaftlichen Werten und Normen eingesetzt werden.}, language = {de} } @techreport{Seeliger2018, author = {Seeliger, Frank}, title = {Wildauer Studiengang Bibliotheksinformatik : ein Pl{\"a}doyer f{\"u}r das lebenslange Lernen}, series = {Bibliotheksdienst}, volume = {52}, journal = {Bibliotheksdienst}, number = {12}, publisher = {De Gruyter}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-18988}, pages = {890 -- 896}, year = {2018}, abstract = {The article examines the claim to and possibilities of lifelong learning in permanent job positions. It argues that continuous and systematic training on the job is crucial, and analyses various possibilities to do this. The on-the-job master programme 'Library Informatics' is introduced as one specific example. Provocatively, my argument is based on the unspoken assumption that the service spectrum of information providers is perceived as all the more convincing and authentic within their respective educational sector, if their own attitude towards learning is proactive and inspiring.}, language = {de} }