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International symposium on Grids and Clouds 2023 in conjunction with HEPiX spring Workshop, IsGC and HEPiX 2023

作者： suhardiman, Basuki Hermanto, Benni Rio Directorate of Information Technology Institut Teknologi Bandung Jl Ganesha 10 Bandung Indonesia Master’s Program in Computational Science Faculty of Mathematics and Natural Sciences Institut Teknologi Bandung Jl Ganesha 10 Bandung Indonesia Biomedical Engineering Department School of Electrical Engineering and Informatics Institut Teknologi Bandung Indonesia

Forest fires have been detected to occur in Indonesia since 1998. The forest fires mostly resulted from human activities in order to expand their land, especially oil palm lands. Once a land clearing is carried out, it covers areas of tens to hundreds of thousands of hectares. The peak of the forest fires occurred in 2015 when almost half of the world was affected especially by smoke from the fire. In 2011, VIIRs (Visible Infrared Imaging Radiometer suite) was launched by NOAA (National Oceanic and Atmospheric Administration). In their collected data, there is data on Indonesia issued daily for areas in the islands of Java, sumatra, Kalimantan, sulawesi, and the general areas of Indonesia. The VIIRs night data shows the possibility of some burning at night. We need to identify burnings that potentially become fires, which are potentially producing smoke. It is important to observe areas where large-scale forest fires frequently occur, so the authority could do some prevention beforehand. Using existing data released per day per area, we utilize an ANN (Artificial Neural Network) to identify a potential fire. The processes start with data cleaning and processing, Neural Network creation, and finally ANN training and testing. By using the ANN prediction model with the MinMax scaler, we choose variables Temperature, Radiant Heat Intensity, and source Footprint. simulations are made to show the ranges of these variables that predict the possibility of’flame’ status occurring. We conclude that the ANN method can give more accurate results than the existing classification. © Copyright owned by the author(s) under the terms of the Creative Commons.

关键词： Fires

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Real-time recognition of traffic signs using opponent color filters

Real-time recognition of traffic signs using opponent color ...

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14th World Congress on Intelligent Transport systems, ITs 2007

作者： Baba, Kyoko Hirai, Yuzo Master's Program in Graduate School of Systems and Information Engineering University of Tsukuba 1-1-1 Ten-nodai Tsukuba Ibaraki 305-8573 Japan Department of Computer Science Graduate School of Systems and Information Engineering University of Tsukuba 1-1-1 Ten-nodai Tsukuba Ibaraki 305-8573 Japan

ISBN: (纸本)9781617387777

In order to assist driver's vision, a real-time recognition system for traffic signs is proposed. After detecting sign candidates, biologically inspired opponent-color filters are used to extract symbol parts of signs. After normalizing the size of symbol, structural features are calculated to identify the sign. 5572 segmented images are used to design the algorithm. In a real-time system, the same sign in a sequence of frames is tracked, and a majority vote is used to integrate the recognition results. For test data, 93.8% recall rate and 99.3% precision rate could be attained. In-vehicle experiment also showed high recall and precision rates.

关键词： Traffic signs

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Using break-even analysis to explore the cost and carbon reduction benefits of solar and wind energy integration in microgrids for convenience stores

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Heliyon 2024年第21期10卷 e39644页

作者： Chung, I-Hua Master's Program in Offshore Wind Energy Engineering National Kaohsiung University of Science and Technology Kaohsiung Taiwan

In response to the increasing demands for net-zero carbon emissions in Taiwan and globally, this study explores the feasibility of implementing microgrid technologies in convenience stores to reduce carbon emissions. The study utilizes the commercial simulation tool HomerPro to evaluate the performance of integrating solar and wind power into microgrid systems, aligning with Taiwan's current priorities in renewable energy development. The analysis incorporates carbon pricing scenarios, grid reliability considerations, and financial variables such as discount and inflation rates. We simulated 256 system configurations to identify the most economically viable solutions under various conditions. The results indicate that integrating solar and wind energy into microgrid systems can significantly lower energy costs and carbon emissions, especially in high carbon-price scenarios. These benefits provide strong incentives for businesses to adopt carbon-neutral strategies. These findings provide valuable insights for policymakers and businesses, highlighting the critical role of reducing green power purchase prices in improving economic feasibility. Future research explores the impacts of integrating other renewable energy sources, offering broader technical support for achieving carbon neutrality. © 2024 The Author

关键词： Construction cost HomerPro Net-zero carbon Renewable-energy penetration rate

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Performance Enhancement of stream-Based Decompression Process by Notifying Compression Buffer size

Performance Enhancement of Stream-Based Decompression Proces...

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IEEE symposium on Computers and Communications (IsCC)

作者： Taiki Kato shinichi Yamagiwa Koichi Marumo Master's Program in Computer Science Degree Program in Systems and Information Engineering University of Tsukuba Tsukuba Ibalaki Japan Faculty of Engineering Information and Systems University of Tsukuba Tsukuba Ibalaki Japan

This paper focuses on a performance enhancement of communication performance by compressing data stream. AsE coding is an effective lossless data compression method for data stream. The software implementation of the coding/decoding method inevitably meets a performance mismatch in memory and storage devices. In the compressor side, it is predictable to decide the size of an original data block and is available to process a flexible buffer memory. However, the decompressor is not able to predict the buffer size because the original data size is not obvious before the decompression. This causes a performance mismatch in the filesystem level. This paper proposes a novel method to address the performance mismatch by applying a notification mechanism of compression size from the compressor. This paper describes the mechanism focusing on the system call usage. Through experimental evaluations, we show the performance improvement of the decompression performance for handling data stream.

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Toward Parallelization Technique for stream-based Lossless Data Compression

Toward Parallelization Technique for Stream-based Lossless D...

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IEEE International Conference on Big Data

作者： Taiki Kato shinichi Yamagiwa Koichi Wada Master’s Program in Computer Science Degree Program in Systems and Information Engineering University of Tsukuba Tsukuba Ibalaki Japan Faculty of Engineering Information and Systems University of Tsukuba Tsukuba Ibalaki Japan

IoT edge platform has become popular in various distributed environments. The edge devices need to communicate BigData among them or with the cloud servers by collaborating with AI technologies for finding events from the applications. Those devices exchange data streams from such as distributed sensors and remote image/video devices. We focus on an acceleration technique for the communication performance using a stream-based lossless data compression technology. This paper proposes a parallelization technique for the compression process in a software environment running on a multicore processor. The technique invokes concurrent compression processes assigned to multiple threads with splitting a data stream to chunks. The paper exposes three scheduling methods for assigning the chunks to the threads: in-order, hybrid and out-of-order. As an original data order of chunks must be obtained in decompression side, the proposed technique introduces packeting mechanisms in each chunk by adding headers to support the scheduling methods. Through experimental performance evaluations, we discuss the packeting overhead focusing on compression ratio and speedup by the parallelization with three scheduling methods.

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The diversity of active microbial groups in an activated sludge process treating painting process wastewater 6

The diversity of active microbial groups in an activated slu...

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6th Environmental Technology and Management Conference, ETMC 2019

作者： Ariesyady, Herto Dwi Mayanda, Mentari Rizki Ito, Tsukasa Environmental Management Technology Research Group Faculty of Civil and Environmental Engineering Institut Teknologi Bandung Jl. Ganesha 10 Bandung40132 Indonesia Master's Program of Environmental Engineering Institut Teknologi Bandung Jl. Ganesha 10 Bandung40132 Indonesia Department of Environmental Engineering Science Gunma University Kiryu Gunma376-8515 Japan

Activated sludge process is one of the wastewater treatment method that is applied for many wastewater types including painting process wastewater of automotive industry. This wastewater is well-known to have high heavy metals concentration which could deteriorate water environment if appropriate performance of the wastewater treatment could not be achieved. In this study, we monitored microbial community diversity in a Painting Biological Treatment (PBT) system. We applied a combination of cultivation and genotypic biological methods based on 16s rRNA gene sequence analysis to identify the diversity of active microbial community. The results showed that active microbes that could grow in this activated sludge system were dominated by Gram-negative bacteria. Based on 16s rRNA gene sequencing analysis, it was revealed that their microbial diversity has close association with Bacterium strain E286, Isosphaera pallida, Lycinibacillus fusiformis, Microbacterium sp., Orchobactrum sp., Pseudomonas guariconensis, Pseudomonas sp. strain MR84, Pseudomonas sp. MC 54, serpens sp., stenotrophomonas acidaminiphila, and Xylella fastidiosa with similarity of 86 - 99%. This findings reflects that microbial community in a Painting Biological Treatment (PBT) system using activated sludge process could adapt with xenobiotics in the wastewater and has a wide range of diversity indicating a complex metabolism mechanism in the treatment process. © 2020 The Authors, published by EDP sciences.

关键词： Activated sludge process

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Measurment of local strain field of a laminated rubber bearing under tensile axial loading 1

Measurment of local strain field of a laminated rubber beari...

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1st International Conference on Advances in Experimental stuctural engineering, AEsE 2005

作者： shoji, Gaku saito, Kei Kameda, Toshihiro Fueki, Takaaki Graduate School of Systems and Information Engineering University of Tsukuba Ibaraki305-8573 Japan Japan Research Institute Ltd. Tokyo102-0074 Japan Graduate School of Systems and Information Engineering University of Tsukuba Ibaraki305-8573 Japan Master’s Program in Science and Engineering Graduate School University of Tsukuba Ibaraki305-8573 Japan

ISBN: (纸本)4901887181

Effect of tensile axial loading on seismic performance (plastic shear deformation) of a laminated rubber bearing (LRB) was clarified. Cyclic loading tests were carried out to evaluate the relation between lateral force and lateral displacement of the LRB under seismic conditions (i.e., axial loading) and under worn conditions (i.e., 300 cycles). A strain measurement scheme based on image analysis was used to obtain the local strain fields of the LRB. Localized strain fields under tensile axial loading occurred more markedly at the corners of the free surface of the LRB than those under compressive axial loading. The seismic performance of the LRB under tensile or compressive axial loading was degraded severely after shear deformation incurred during 300 cycles. After 300 cycles, for the LRB under compressive axial loading, large localized shear strain fields occurred at the rubber layers underneath and on the inner steel plates, whereas, for the LRB under tensile axial loading, such large strain fields occurred at the rubber layers around the upper and lower steel plates. © 2005 EUCENTRE. All rights reserved.

关键词： Rubber

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Verification of the Inactivation Effect of Near-UV LEDs using a Pulsed Lighting system on staphylococcus aureus

Verification of the Inactivation Effect of Near-UV LEDs usin...

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2024 IEEE sustainable smart Lighting World Conference and Expo, Ls24 2024

作者： Nomura, Hiroki Kihara, seiji Zukeran, Akinori sawai, Jun Misu, Takayuki Kanagawa Institute of Technology Graduate School of Engineering Master's Degree Program in Electrical and Electronic Engineering Atsugi Kanagawa243-0292 Japan Kanagawa Institute of Technology Faculty of Engineering Department of Electrical and Electronic Engineering Atsugi Kanagawa243-0292 Japan Kanagawa Institute of Technology Faculty of Health and Medical Sciences Department of Nutrition and Life Science Atsugi Kanagawa243-0292 Japan

ISBN: (纸本)9798331540197

The purpose of this study is to investigate the disinfection effect of Near-UV LED light, which is pulsed using PWM control, on staphylococcus aureus. To evaluate the disinfection effect of Near-UV LED light, three types of Near-UV LEDs with wavelengths of 395 nm, 385 nm, and 365 nm were installed within a sealed space inside an incubator and energized with a forward current of 1000 mA and a forward voltage of 3.6 V, and the disinfection rate under each type of light was assessed. Additionally, the disinfection effect was evaluated when the same three types of Near-UV LEDs were pulsed with a 50% duty cycle. As a result, 100% disinfection was achieved with 365 nm Near-UV LED direct-current irradiation for 120 seconds, and a 93% disinfection rate was obtained with pulsed irradiation for 150 seconds. © 2024 IEEE.

关键词： Light emitting diodes

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A system for content-retrieval and browsing of kaou monogram using contour and color characteristics

A system for content-retrieval and browsing of kaou monogram...

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IEEE Pacific Rim Conference on Communications, Computers and signal Processing

作者： s.-N. Kim M. suzuki K. Kameyama K. Toraichi Master's Program in Science and Engineering University of Tsukuba Tsukuba Ibaraki Japan NTI-IT Corporation Tsulruba Advanced Research Alliance University of Tsukuba

In the research of historical Japanese documents, examination of kaou monograms plays a very important role for specifying the author's identity and the genuineness of the document This work aims to develop a kaou search/browsing system usable via World Wide Web (WWW), for aiding the research of historical documents. One of the requirements to the system is that the kaou images should be retrievable based on their similarity. Formerly, kaou images were retrieved using contour characteristics only, even though the color characteristics are also important for the research of kaous. In the developed method, the color characteristics have been introduced to improve the accuracy of similar kaou image retrieval. The feasibility of the developed method and the system design have been evaluated in a prototype system.

关键词： Image retrieval Prototypes shape Image resolution Image databases History Web sites Client server systems

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Extraction of c- F os Protein Regions from Mouse Brain slice Images using Multi-channelization, 1 x 1 Convolution and U -Net 13

Extraction of c- F os Protein Regions from Mouse Brain Slice...

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Joint 13th International Conference on soft Computing and Intelligent systems and 25th International symposium on Advanced Intelligent systems, sCIs and IsIs 2024

作者： Wang, Ziyue Okamura, Hibiki Luo, shijie Hayashi, Yu Takizawa, Hotaka Master's Program in Computer Science University of Tsukuba Tsukuba Japan International Institute for Integrative Sleep Medicine University of Tsukuba Ph.D. Program in Humanics Tsukuba Japan International Institute for Integrative Sleep Medicine University of Tsukuba Tsukuba Japan Institute of Systems and Information Engineering Academic Computing and Communications Center University of Tsukuba Tsukuba Japan

ISBN: (纸本)9798350373332

This study proposed a novel extraction method of c-Fos protein regions in DAB(3,3'-diaminobenzidine)-stained mouse brain slice images using the U-Net model combined with the multi-channelization and 1×1 convolution techniques. Our U-Net m odel, called 1× 1 conv U-Net, was applied to three DAB- strainedmouse slice images whose resolutions were 1000x1000 pixels. The experimental results demonstrated that the 1×1 conv U-Net outperformed the conventional U-Net. © 2024 IEEE.

关键词： Mammals

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