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2024 Beyond Technology Summit on Informatics International Conference, BTS-I2C 2024

作者： Iswenda, Brilliant Ayang Irhamah Kuswanto, Heri Institut Teknologi Sepuluh Nopember Faculty of Science and Data Analytics Department of Statistics Surabaya Indonesia

ISBN: (纸本)9798331508579

The development of online news has made it the primary source of information for the public, replacing the previously dominant position of print media. In increasingly fierce competition, many media companies rely on page views to drive advertising revenue, making it one of their key performance indicators. By utilizing Convolutional Neural Networks (CNN), companies can extract sentiment from news headlines. The results of sentiment analysis predictions from online news headlines can be used to determine the proportion of popular news based on page views. This allows us to identify whether popular news (news with high page views) comes from negative or positive headlines. This information can be utilized by media outlets to create more engaging headlines to increase the number of popular news articles. By optimizing CNN parameters during training, the accuracy of the testing model can be enhanced. The results of this research show that sentiment analysis with Convolutional Neural Network shows the best accuracy result of 76.94% when using 100 filters and a filter size of 5. Positive news headlines are more likely to result in popular news compared to negative headlines © 2024 IEEE.

关键词： Convolutional neural networks

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The Influence of Tartaric Acid in the Silver Nanoparticle Synthesis Using Response Surface Methodology

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Journal of Renewable Materials 2024年第2期12卷 245-258页

作者： Yatim Lailun Ni’mah Afaf Baktir Dewi Santosaningsih Suprapto Suprapto Chemistry Department Faculty of Science and Data AnalyticsInstitut Teknologi Sepuluh NopemberSurabayaIndonesia Chemistry Department Faculty of Science and TechnologyAirlangga UniversitySurabayaIndonesia Department Clinical Microbiology Faculty of MedicineBrawijaya UniversityMalangIndonesia

Silver nanoparticles(AgNPs)synthesized using tartaric acid as a capping agent have a great impact on the reaction kinetics and contribute significantly to the stability of *** protective layer formed by tartaric acid is an important factor that protects the silver surface and reduces potential cytotoxicity *** attributes are critical for assessing the compatibility of AgNPs with biological systems and making them suitable for drug delivery *** aim of this research is to conduct a comprehensive study of the effect of tartaric acid concentration,sonication time and temperature on the formation of silver *** Response Surface Methodology(RSM)with Face-Centered Central Composite Design(FCCD),the optimization process identifies the most favorable synthesis ***-Vis spectrum regression analysis shows that AgNPs stabilized with tartaric acid are more stable than AgNPs without tartaric *** highlights the increased stability that tartaric acid provides in AgNP *** size distribution analysis showed a multimodal distribution for AgNPs with tartaric acid and showed the smallest size peak with an average size of 20.53 *** second peak with increasing intensity shows a dominant average size of 108.8 nm accompanied by one standard deviation of 4.225 nm and a zeta potential of−11.08 *** contrast,AgNPs synthesized with polyvinylpyrrolidone(PVP)showed a unimodal particle distribution with an average particle size of 81.62 nm and a zeta potential of−2.96 *** more negative zeta potential of AgNP-tartaric acid indicates its increased *** of antibacterial activity showed that AgNPs stabilized with tartaric acid showed better performance against *** and *** bacteria compared with *** summary,this study highlights the potential of tartaric acid in AgNP synthesis and suggests an avenue for the development of stable AgNPs with versatile applications.

关键词： Tartaric acid silver nanoparticle polyvinyl pyrrolidone response surface methodology

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Analyze photocatalytic degradation of methylene blue using TiO2deposited onto conductive and non-conductive substrates under UV-C light 3

Analyze photocatalytic degradation of methylene blue using T...

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3rd International Symposium on Physics and Applications 2023, ISPA 2023

作者： Mia Rosita, Ayu Yudhoyono, Gatut Department of Physics Faculty of Science and Data Analytics Institut Teknologi Sepuluh Nopember Surabaya60111 Indonesia

Degradation of methylene blue has been extensively studied by using TiO2 thin film as photocatalyst deposited onto non-conductive substrates. In this research, we proposed to utilize TiO2 thin film deposited onto conductive substrate, i.e., PCB. We compared concentration degradation between TiO2 thin film deposited onto conductive and non-conductive substrates. In this study, a photocatalysis process was carried out to decompose methylene blue pollutants. This research aims to obtain the performance of TiO2 photocatalyst coated with spray coating method on conductive and non-conductive substrates using UV-C light. This research begins with the manufacture of photocatalysis reactor, manufacture and coating of substrate, manufacture of methylene blue solution, concentration calculation. In this study, two types of thin layer substrates were made using the spray coating method. The first substrate is made using acrylic material as a non-conductive substrate, the second material uses a conductive substrate, PCB. The results shows that concentration of conductive and non-conductive substrates decreases 51% and 33,3 %, respectively. Therefore, conductive substrate may increase photocatalytic process. The use of substrates that are conductors can conduct electrons well, so that when interacting with TiO2, electrons generated by the photocatalysis process can move more easily. Acrylic and PCB materials are distinguished based on the ability to conduct electricity. Acrylic as an insulator and PCB acts as a conductor substrate. © Published under licence by IOP Publishing Ltd.

关键词： Substrates

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Characterization of the structure, morphology, and optical properties of titanium dioxide thin film deposited by spray pyrolysis technique for self-cleaning glass 3

Characterization of the structure, morphology, and optical p...

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3rd International Symposium on Physics and Applications 2023, ISPA 2023

作者： Shabrina, N. Salsabila, N.K. Sudarsono, S. Yudoyono, G. Department of Physics Faculty of Science and Data Analytics Institut Teknologi Sepuluh Nopember Surabaya60111 Indonesia

The research in material science has actively pursued the creation of self-cleaning materials, especially for windows. Titanium dioxide (TiO2) is considered a promising substance for developing hydrophilic self-cleaning surfaces due to its photocatalytic activity. In this research, TiO2 nanoparticles were synthesized using TiCl3 as the precursor and co-precipitation as the experimental method in order to obtain anatase phase. The nanoparticles, then, was deposited by spray pyrolysis technique with different spraying time;1, 2, 3, and 4 minutes and different types of TiO2 nanoparticles - synthesis and commercial - as the primary variations. TiO2 thin film was formed using ethyl cellulose as binder and isopropyl alcohol as solvent. The synthesized TiO2 nanoparticles and deposited thin film were, then, characterized using XRD, Maud software, UV-Visible Spectrophotometer, optical microscope, and SEM. The higher band gap energy value of TiO2 thin films was obtained with the average of 3.746 eV and 3.744 eV for TI(S) and TI(C), respectively, as a result of ethyl cellulose composition on the thin film. The thin film was categorized as hydrophilic. © Published under licence by IOP Publishing Ltd.

关键词： Thin films

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Preliminary Study of Resonance Systems States in Surface Plasmon Resonance Systems 3

Preliminary Study of Resonance Systems States in Surface Pla...

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3rd International Symposium on Physics and Applications 2023, ISPA 2023

作者： Faza, R.A. Chalimah, S. Sudarsono, S. Yudoyono, G. Department of Physics Faculty of Science and Data Analytics Institut Teknologi Sepuluh Nopember Surabaya60111 Indonesia

Resonance between light and collective electrons is known as Surface Plasmon Resonance or SPR. The development of SPR-based sensors can generate the use of a Kretschmann configuration prism. Otto configuration dielectric medium between prism and gold thin film. For the Kretschmann configuration, a gold thin film between the prism and dielectric medium. So, this research focuses on the use of the Kretschmann configuration in the SPR system because the setup of the half-cylindrical prism is less complicated than using the Otto configuration. In this research, we compare the reflectance of an uncoated half-cylindrical prism and a half-cylindrical prism coated with a gold thin film to see the resonance effect. The beam reflected by the back surface of the prism was detected using a photodiode sensor (OPT-101, Texas Instruments). The photodiode sensor is connected to Arduino Uno, and the voltage reading results are processed with Arduino Ide software. Adjusting the He-Ne laser light's angle of incidence and the prism's angle of impact 30° - 50°. The experimental results show that the TIR (total internal reflection) phenomenon occurs in half-cylindrical prisms without a gold coating. Meanwhile, in the half-cylindrical prism coated with gold, a resonance phenomenon can be seen, this case, at a particular angle of incidence, can be detected through a reduction in the beam's intensity of the reflected light. The photodiode sensor detects a decrease in voltage value, which indicates an intensity decrease, which was originally 4.34 volts to 2.52 volts when the incident angle of the light beam was 45°. © Published under licence by IOP Publishing Ltd.

关键词： Prisms

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Numerical prediction of ureter stone size using an integrated CFD-ML approach

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Neural Computing and Applications 2025年第7期37卷 5325-5341页

作者： Ashraf, Muhammad Mubashar Kamal, Khurram Fahad, Muhammad Noor, N.F.M. Ratlamwala, Tahir Abdul Hussain Islamabad Pakistan College of Science and Engineering Hamad bin Khalifa University Doha Qatar Institute of Mathematical Sciences Faculty of Science Universiti Malaya Kuala Lumpur50603 Malaysia Center for Data Analytics Consultancy & Services Faculty of Science Universiti Malaya Kuala Lumpur50603 Malaysia

Ureteral flow parameters provide significant details about its physical attributes. Ureter is a single transport medium for urine transmission from kidney to ureter and its health is very important for a healthy human body. Understanding the fluid flow behavior can contribute toward the ureter health monitoring including estimation of any kind of blockage in the flow. Using ANSYS Fluent, Computational Fluid Dynamics (CFD) analysis and the grid independence study are carried out through iterative simulation process to achieve the solution independence. The CFD modeling provides tools and techniques to observe varying fluid parameters such as pressure, velocity and effect of the flow on smooth walls. Fluid Structure Interaction (FSI), an effective technique to analyze the effects of such flows on the ureter walls is also employed. Although the exact modeling of the ureter wall is not possible due to its complex physical parameters, some of its available physiological properties can be used to visualize the model of the ureter numerically. The present study is intended to predict the ureter stone size by using the FSI analysis. The simulations are carried out by increasing the stone size gradually from 1.7 to 3.4 mm and the input flow parameters are compared with the output flow parameters within the same solution setup and boundary conditions via artificial neural network in MATLAB. The output results obtained from the FSI simulations are then utilized to generate a prediction model for the ureter stone size. It is observed that the increasing stone size has a significant effect on the ureter wall, causing high stress regions in the point of interaction. The findings also revealed that the predicted size of the ureter stone is the closest to the actual size and with the least mean squared error at 80 optimal neurons. © The Author(s), under exclusive licence to Springer-Verlag London Ltd., part of Springer Nature 2024.

关键词： Computational fluid dynamics

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Modelling of Poor Household in East Kalimantan Using Zero Inflated Ordered Probit (ZIOP) Approach 7

Modelling of Poor Household in East Kalimantan Using Zero In...

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7th Information Systems International Conference, ISICO 2023

作者： Rejeki, Noviana Ratnasari, Vita Ahsan, Muhammad Department of Statistics Faculty of Science and Data Analytics Institut Teknologi Sepuluh Nopember Sukolilo Surabaya60111 Indonesia

Discrete ordinal response variables often exhibit an "excess" of zeros, which can be attributed to two different data conditions. Conventional ordinal probit models are limited in their ability to explain these excess zeros. The Zero Inflated Ordered Probit (ZIOP) model, which combines binary probit and ordinal probit regression, can be used to address this limitation. This study reviews the empirical analysis of the factors that contribute to poor household levels in East Kalimantan. The goodness-of-fit of the ZIOP and ordinal probit models was assessed using the Vuong test. © 2023 The Authors. Published by Elsevier B.V.

关键词： Marginal Effect Poor Household Rate Vuong Test Zero Inflated Ordered Probit (ZIOP)

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Enhanced Conductive and Optical Properties of TiO2/PANI Composites Synthesized by in-situ Chemical Oxidation Polymerization Route 3

Enhanced Conductive and Optical Properties of TiO2/PANI Comp...

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3rd International Symposium on Physics and Applications 2023, ISPA 2023

作者： Latifah, Umi Salsabila, Nisrina K. Yudhoyono, Gatut Department of Physics Faculty of Science and Data Analytics Institut Teknologi Sepuluh Nopember Surabaya Surabaya60111 Indonesia

Polyaniline titania composites have been investigated due to their unique chemical and physical properties. This study synthesized several PANI/TiO2 composites with different mol% of PANI using in-situ oxidative polymerization methods. TiO2 was obtained by coprecipitation methods. The functional group analysis carried out using Fourier transform Infrared reflectance, it was found that PAni/TiO2 had been successfully created, which was indicated by the absence of new peaks. Based on the results of measuring absorbance in the Ultraviolet-Visible wavelength, it was found that the composite material made had a wider absorption range compared to its constituents. The electrical conductivity of composites was shown to have a higher value than TiO2. From these results, it was found that the PANI/TiO2 composite material has greater photoactivity than TiO2. © Published under licence by IOP Publishing Ltd.

关键词： Titanium dioxide

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Partial Optimality in the Linear Ordering Problem 41

Partial Optimality in the Linear Ordering Problem

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41st International Conference on Machine Learning, ICML 2024

作者： Stein, David Andres, Bjoern Faculty of Computer Science TU Dresden Germany Center for Scalable Data Analytics and AI Dresden Leipzig Germany

关键词： Cost functions

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Box Facets and Cut Facets of Lifted Multicut Polytopes 41

Box Facets and Cut Facets of Lifted Multicut Polytopes

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41st International Conference on Machine Learning, ICML 2024

作者： Naumann, Lucas Fabian Irmai, Jannik Zhao, Shengxian Andres, Bjoern Faculty of Computer Science TU Dresden Germany Center for Scalable Data Analytics and AI Leipzig Dresden Germany

The lifted multicut problem has diverse applications in the field of computer vision. Exact algorithms based on linear programming require an understanding of lifted multicut polytopes. Despite recent progress, two fundamental questions about these polytopes have remained open: Which lower box inequalities define facets, and which cut inequalities define facets? In this article, we answer the first question by establishing conditions that are necessary, sufficient and efficiently decidable. Toward the second question, we show that deciding facet-definingness of cut inequalities is NP-hard. This completes the analysis of canonical facets of lifted multicut polytopes. Copyright 2024 by the author(s)

关键词： Computer vision

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