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1st International Symposium on Intelligent Computing and Networking, ISICN 2024

作者： Bolaños, César Bollman, Dorothy Doctoral Program in Computing and Information Sciences and Engineering University of Puerto Rico at Mayagüez Mayagüez00680 Puerto Rico Department of Mathematical Sciences University of Puerto Rico at Mayagüez Mayagüez00680 Puerto Rico

ISBN: (纸本)9783031674464

We construct new families of multidimensional periodic arrays that can be used for digital watermarking videos and images. Each member of each family is composed of columns of cyclic shifts of a Sidelnikov sequence in which the shifts are given by a multidimensional m1×m2×…×mn "grid" that is determined by applying a logarithmic quadratic map to the elements of a direct product Zm1×Zm2×…×Zmn. These arrays have peak auto-correlation on the order of p2l and non-peak auto- and cross-correlation on the order of pl, where l≥2 and m1m2…mn=pl-1, thereby improving the peak auto-correlation to nonpeak auto- and cross-correlations of other known constructions. Additionally, we show that the low cross-correlation values are optimal with respect to the Welch bound. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.

关键词： Watermarking

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Visual clarity of several learning media under different daylight-opening positions and areas based on students’ performance and perception

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Building and Environment 2025年 281卷

作者： Christy Vidiyanti Surjamanto Wonorahardjo M Donny Koerniawan Rizki A Mangkuto Doctoral Program Department of Architecture SAPPK Institut Teknologi Bandung Jl. Ganesha 10 Bandung 40132 Indonesia Department of Architecture Faculty of Engineering Universitas Mercu Buana Jl. Meruya Selatan 1 Jakarta 11650 Indonesia Building Technology Research Group Department of Architecture SAPPK Institut Teknologi Bandung Jl. Ganesha 10 Bandung 40132 Indonesia Built Environment Performance Engineering Research Group Department of Engineering Physics Faculty of Industrial Technology Institut Teknologi Bandung Jl. Ganesha 10 Bandung 40132 Indonesia

Digital display generally uses special lighting that produces different luminance from conventional displays. This study examined the complex effects of varying learning media (whiteboard, glassboard, projector, and smart television [TV]) in various daylight settings — window position (rear and side windows) and opening area (interior window-to-wall ratio [ i WWR] value: 9 %, 47 %, and 85 %) controlled by blackout roller blinds — to produce visual clarity (VCl), which was assessed objectively (accuracy) and subjectively (perception). Based on the optical characteristics, three groups of learning media were created: non-lit devices (whiteboard and glassboard), reflected-lit devices (projector), and self-lit devices (smart TV). The results showed that coordinating daylight settings and learning media can optimise the VCl. A 10 % increase in i WWR value increases 2 % accuracy and 3 % VCl perception for non-lit but decreases 0.2 % accuracy for luminous learning media (reflected-lit and self-lit devices) — the VCl perception of those devices peaks at a 2 % increase when the curtains are half open. This study proposes a spatial VCl index formed by the sufficient scores of accuracy and perceived clarity across the room. For spatial VCl optimisation on non-lit devices, the side window and 81 % i WWR were proposed, and 81 % s VCl was achieved. By contrast, a rear window and a 60–64 % i WWR are recommended when using luminous learning media, and 91 % s VCl for reflected- and 100 % s VCl for self-lit devices were achieved. This study developed practical guidelines by providing white luminance thresholds for media displays, offering adaptable solutions for diverse classroom settings and learning media.

关键词： Daylighting

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Development of Urban Data Sensing for Smart City Platform 10

Development of Urban Data Sensing for Smart City Platform

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10th International Conference on ICT for Smart Society, ICISS 2023

作者： Prabowo, Okyza Maherdy Supangkat, Suhono Harso Mulyana, Eueung Doctoral Program of School of Electrical Engineering and Informatics Institut Teknologi Bandung STMIK AMIK Bandung Bandung Indonesia School of Electrical Engineering and Informatics Institut Teknologi Bandung Smart City and Community Innovation Center Bandung Indonesia School of Electrical Engineering and Informatics Institut Teknologi Bandung Bandung Indonesia

ISBN: (纸本)9798350339543

The idea of a 'smart city' is one in which cities may effectively and efficiently manage their resources to raise the standard of living of its residents. Cities are already capable of performing sensing, understanding, and acting at a certain degree because to the existence of information technology as an enabler. Several studies have created various physical sensors for sensing in order to produce data. However, urban data is not limited to factual information on the environment and infrastructure. In order to collect data from the digital world, including social media, online news, and other digital social sensors, this research aims to create an urban data collecting system. The creation of digital urban sensor data can enhance the accuracy of the information that can help decision-makers. © 2023 IEEE.

关键词： Smart city

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Removal of total dissolved solids from oil-field-produced water using ceramic adsorbents integrated with reverse osmosis

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Materials Today: Proceedings 2023年 87卷 360-365页

作者： Herawati N. Dahlan M.H. Yusuf M. Iqbal M.M. Roni K.A. Nasir S. Doctoral Engineering Program Faculty of Engineering Universitas Sriwijaya Jl. Srijaya Negara Palembang 30139 Indonesia Chemical Engineering Study Program Faculty of Engineering Universitas Muhammadiyah Palembang Jl. Jend. A. Yani 13 Ulu Plaju Palembang 30137 Indonesia Chemical Engineering Department Faculty of Engineering Universitas Sriwijaya Jl. Raya-Palembang Prabumulih Ogan Ilir 30662 Indonesia Mining Engineering Department Faculty of Engineering Universitas Sriwijaya Jl. Raya-Palembang Prabumulih Ogan Ilir 30662 Indonesia Civil Engineering Department Faculty of Engineering Universitas Sriwijaya Jl. Raya-Palembang Prabumulih Ogan Ilir 30662 Indonesia

Total dissolved solids (TDS) consisting of inorganic salts and organic matter are pollutants to the aquatic and water systems for human use. This paper studied the effect of ceramic adsorbent composition on improving the quality of the produced water (PW) by decreasing TDS before entering reverse osmosis (RO). Manufacturing ceramic adsorbents use a mixture of spent catalysts of residues catalytic cracking (RCC) and natural clay in various compositions. Experiments were performed using the PW from one oil and gas company in South Sumatra, Indonesia. The initial characterization of produced water contains total dissolved solids of 14,556 mg/L. The flow rate of PW into the ceramic adsorbent column were varied from 6 to 8 L/min at a contact time of 15 to 120 min. The results showed that ceramic adsorbent A (diameter 10 mm and thickness 10 mm, 70% clay, and 30% RCC) reduced TDS by 74.58%. Adsorbent B (diameter of 20 mm and thickness of 10 mm, 70% RCC and 30% clay) lowers TDS by 56.68% at a flow rate of 6 L/min and a contact time of 60 min. Adsorbent C (diameter of 10 mm and thickness of 10 mm, 30% clay, and 70% RCC) reduced TDS by 59.40% at a flow rate of 6 L/min and a flow time of 60 min. Adsorbent D (diameter of 20 mm, thickness of 10 mm, 30% clay, and 70% RCC) lowers TDS by 54.38% at a flow rate of 6 L/ min and a contact time of 60 min. After being transferred into the adsorption column, their filtrates were sent into the Reverse Osmosis (RO) membrane. The final permeates of RO have TDS values between 1,720 mg/L to 3,930 mg/L that met water standards for oil and gas exploration wastewater in Indonesia. © 2023 The Authors. All rights reserved.

关键词： Adsorbent Adsorption Catalytic cracking Residues from oil exploration Total dissolved solids

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ROI detection of reading process using ANFIS method

ROI detection of reading process using ANFIS method

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4th Biomedical engineering International Conference, BMEiCON-2011

作者： Pongpanitanont, Pongphan Sittiprapaporn, Wichian Prasertsakul, Thunyanoot Charoensuk, Warakorn Department of Biomedical Engineering Faculty of Engineering Mahidol University Nakorn Pathom Thailand Office of the Doctoral Degree Program Studies in Education Mahasarakham University Faculty of Education Nakhonsawan Rd. Talad Sub-district Muang District Mahasarakham 44000 Thailand Department of Electrical Engineering Faculty of Engineering Mahidol University Nakorn Pathom Thailand

ISBN: (纸本)9781457721908

This paper studies the application of the adaptive neuro-fuzzy inference system (ANFIS). We propose the ANFIS used for region of interest (ROI) detection in brain fMRI images. The ROI is used for estimating the tissue activity by Blood-Oxygen Level Dependent technique (BOLD). The result shows the ANFIS model can be used to fit the image time-intensity data. A 3 Gaussian membership functions were proposed to estimate the time-intensity relation. The result shows the rate of time-intensity relation to determine the tissue activity. The tissue activity should be determined the normal pattern of reading process. © 2011 IEEE.

关键词： Tissue

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Quality Improvements in the Electrical Design of Typical DC-DC Electronic Power Converter for High-Voltage Applications 8

Quality Improvements in the Electrical Design of Typical DC-...

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8th International Conference on engineering and Emerging Technologies, ICEET 2022

作者： Recto, King Harold A. Escoto, Miguel T. Hernandez, Noel B. Ateneo de Manila University Department of Electronics Computer and Communications Engineering Quezon City Philippines Electrical and Electronics Engineering Institute University of the Philippines Diliman Quezon City Philippines Centro Escolar University Post-doctoral Program in Quality Management of the Graduate School Manila Philippines

ISBN: (纸本)9781665491068

The green transition has brought about a worldwide-shift to the use of renewables as alternative energy sources. Because of this, high voltage DC has been a field of interest in power electronics due to its capability in efficiently transmitting power to reach remote areas. Typical DC-DC electronic power converter design has the capability of boosting voltage level to a certain extent but not enough for high-voltage applications. Using the DMAIC Approach of the Six Sigma, quality improvements in the design was proposed to stabilize operating frequency, bring up the output voltage from 100 VDC to 4,000 VDC and provide at least 10% margin of error in the apparent power measured at the output side to offset inherent losses in the electrical design. These proposed quality improvements were sustained by designing a control circuit that would ensure the attainment of the parameters set in the Define Phase of the DMAIC Approach. The result of the study is a practical 12 VDC to 4,000 VDC boost converter design that has incorporated all the proposed quality improvements. © 2022 IEEE.

关键词： Six sigma

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Balanced Scorecard-Based Performance Measurement for Rural Infrastructure Development of Thai Sub-District Local Government

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Asia-Pacific Journal of Rural Development 2005年第1期15卷 21 - 39页

作者： S. Posayanant C. Charoenngam Authors are Doctoral student and Associate Professor respectively of Construction Engineering and Infrastructure Management Program School of Civil Engineering Asian Institute of Technology Thailand. E-mail: ；

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Operational interpretation of the Choi rank through exclusion tasks

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Physical Review A 2024年第5期110卷 L050601-L050601页

作者： Benjamin Stratton Chung-Yun Hsieh Paul Skrzypczyk Quantum Engineering Centre for Doctoral Training H. H. Wills Physics Laboratory and Department of Electrical & Electronic Engineering University of Bristol Bristol BS8 1FD United Kingdom H.H. Wills Physics Laboratory University of Bristol Tyndall Avenue Bristol BS8 1TL United Kingdom CIFAR Azrieli Global Scholars Program CIFAR Toronto Canada

The Choi state is an indispensable tool in the study and analysis of quantum channels. Considering a channel in terms of its associated Choi state can greatly simplify problems. It also offers an alternative approach to the characterization of a channel, with properties of the Choi state providing novel insight into a channel's behavior. The rank of a Choi state, termed the Choi rank, has proven to be an important characterizing property, and here, its significance is further elucidated through an operational interpretation. The Choi rank is shown to provide a universal bound on how successfully two agents, Alice and Bob, can perform an entanglement-assisted exclusion task. The task can be considered an extension of superdense coding, where Bob can only output information about Alice's encoded bit string with certainty. Conclusive state exclusion, in place of state discrimination, is therefore considered at the culmination of the superdense coding protocol. In order to prove this result, a necessary condition for conclusive k-state exclusion of a set of states is presented in order to achieve this result, and the notions of weak and strong exclusion are introduced.

关键词： Quantum channels Quantum communication, protocols & technology Quantum information processing Quantum information theory

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Identification of subsurface soil layers in Sutami Dam area and its surroundings using magnetic methods 2

Identification of subsurface soil layers in Sutami Dam area ...

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2nd International Conference and Exhibition on Sciences and Technology, ICEST 2020

作者： Sutasoma, M. Susilo, A. Sunaryo, S. Suryo, E.A. Cahyo, R.H.D. Doctoral Program of Physics Faculty of Science Brawijaya University Jl. Veteran Jawa Timur Malang Indonesia Geophysics Engineering Faculty of Science Brawijaya University Jl. Veteran Jawa Timur Malang Indonesia Civil Engineering Faculty of Engineering Brawijaya University Jl. Veteran Jawa Timur Malang Indonesia Master Program of Physics Faculty of Science Brawijaya University Jl. Veteran Jawa Timur Malang Indonesia

The research was conducted to determine the subsurface layer type in the Sutami Dam area using magnetic methods. This study aims to determine the subsurface soil type in the area around the Sutami Dam. The instrument used in data collection was the Proton Precession Magnetometer (PPM) Scientrex Model G-8. The data collection area covers the Kromengan region (112.494oE;8.129oS) to the Sukorame area (112.358oE;-8.213oS). The area covers the Sutami Dam area. The research area is 15 km x 15 km or with an area of 225 KM with a space between points 300 m. From the data acquisition, it was found that the number of data collection points was 1372 points. The types of subsurface layers based on the 2,5 D Talwani modeling are soil, pumice, limestone, sandy tuff, sandstone, andesite, and lava. © 2021 Institute of Physics Publishing. All rights reserved.

关键词： Lime

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Effect of tin on the recrystallization behavior and texture of grain oriented electrical steels

Effect of tin on the recrystallization behavior and texture ...

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Materials Processing and Texture - 15th International Conference on Textures of Materials, ICOTOM 15

作者： Liao, Chun-Chih Hou, Chun-Kan Graduate School of Engineering Science and Technology Doctoral Program National Yunlin University of Science and Technology 123 University Road Douliou Yunlin 64002 Taiwan Department of Mechanical Engineering National Yunlin University of Science and Technology 123 University Road Douliou Yunlin 64002 Taiwan

ISBN: (纸本)9780470408346

Influence of tin, range from 0-0.31wt%, on the recrystallization behavior and texture of grain oriented electrical has been investigated. Tin is susceptible to segregation at grain boundary and on surface that pinning down the grain boundary mobility. Annealed hot bands in 2.5mm are cold rolled to 0.35 mm in one-stage cold rolling. Cold-rolled sheets are decarburization annealing at 800°C for 5 minutes in wet H2-N2 atmosphere. During secondary recrystallization specimens are heated to 900~1200°C and soaked 12 hours with a heating rate 12 °C per hour after 700 °C. Both X-ray and EBSD are conducted to examine the grain orientation. It is found that pinning effect of tin is very strong for secondary recrystallization. The specimens containing less than 0.05wt% tin finish secondary recrystallization after SRT at 1000 °C. The secondary recrystallization grain growth became difficult as the tin content above 0.10wt%. According to EBSD results, after primary recrystallization, the intensity of (011) texture in the specimens with nitriding 30 seconds slightly increases with increasing tin content and reaches a maximum value at 0.05wt% tin. Then, it rapidly decreases with increasing tin and reaches a minimum at 0, 21wt% tin. Finally, it increases with increasing tin again. However, the intensity of (011) texture in the specimens without nitriding decreases with increasing tin content and reaches a minimum value at 0.21 wt% tin. Then, it increases with increasing tin. Both EBSD and XRD results show that the intensities of (111) textures in the specimens both with and without nitriding decreases with increasing tin content and reaches a value at 0.05 wt% tin. Then, it increases with increasing tin and reaches a peak at 0.1wt% tin. Finally, it decreases with increasing tin again. For the specimens without nitriding treatment, while the SRT is higher than 1100°C, best magnetic properties was occurred in the steel containing 0.05 wt% tin. However, the flux density increases and c

关键词： Nitriding

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