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6th International Seminar on Research of Information Technology and Intelligent Systems, ISRITI 2023

作者： Atmaja, Ardian Budi Kusuma Hidayat, Egi Muhammad Idris Riyanto Trilaksono, Bambang Siregar, Simon Habibullah, Natsir School of Electrical Engineering and Informatics Institut Teknologi Bandung Bandung Indonesia Institut Teknologi Bandung Telkom University Doctoral Program of Electrical Engineering Department Computer Engineering Faculty of Applied Science Indonesia

ISBN: (纸本)9798350358346

This research aims to construct a two-dimensional image to represent an underwater geometry map with a Side Scan Sonar (SSS) mounted on a Hybrid Autonomous Underwater Glider (HAUG). Building the underwater map has two stages of the process. The first stage is preprocessing which includes Time-varying gains (TVG), slant range correction, and ground range correction. The second is HAUG navigation, the movement of HAUG orientation to the angle and distance of SSS readings and plotting the geometry of the grid map. With these two stages, a two-dimensional grid map will be formed. Meanwhile, the 3D plot utilizes slant range and ground range correction to obtain the surface height of the bottom of the pool. From the experiments conducted to conduct mapping in the pool, two-dimensional and three-dimensional visual forms of the pool floor and pool walls were produced. The results of the estimated measurement of the width of the pool obtained 14.05 meters and the height of the pool 3.199 meters with an SSS beam angle of 58 degrees. © 2023 IEEE.

关键词： Geometry

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The effect of fiber volume fraction on tensile and impact properties of eleusine indica grass reinforced polypropylene bio composite 1

The effect of fiber volume fraction on tensile and impact pr...

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1st International Conference on Design, Energy, Materials and Manufacture, ICDEMM 2018

作者： Lokantara, I.P. Suardana, N.P.G. Surata, I.W. Winaya, I.N.S. Doctoral Study Program of Engineering Science Faculty of Engineering Udayana University Kampus Sudirman Denpasar-Bali Indonesia Mechanical Engineering Department Udayana University Street of Bukit Jimbaran Bali Badung Indonesia

The purpose of this research was to investigate the tensile strength and impact strength of eleusine indica grass fiber-reinforced polypropylene recycle composite. In this study, the fiber was treated with alkali at 5% NaOH for 2 hours. The eleusine indica grass fiber cut with a length of 3 cm and the matrix used recycle polypropylene. In this research, the volume fraction of eleusine indica grass fiber varied by 20%, 25%, and 30% respectively. The composite molded with a hot press at temperature 200°C with a holding time for 2 hours. Tensile test used ASTM D3039 and impact test used ASTM D256. The highest tensile and impact strength results on fiber volume fraction 30%. © Published under licence by IOP Publishing Ltd.

关键词： Polypropylenes

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Evaluation of ultrasonic-range Vibratory Microinjection System at a frequency of 35 kHz using fertilized mouse eggs

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Journal of Mammalian Ova Research 2012年第1期29卷 48-54页

作者： Kudereti, Dilidaer Miyawaki, Fujio Kobayashi, Kenji Hasegawa, Jun Graduate School of Advanced Science and Technology Doctoral Program Tokyo Denki University Saitama 350-0394 Japan Graduate School of Engineering Takushoku University Tokyo 193-0985 Japan

To facilitate pronuclear microinjection, we have been developing the Vibratory Microinjection Systems (VMSs) that provides a micropipette with longitudinal vibration. The current VMS utilizes any frequency up to 100 kHz. We compared 35-kHz vibratory microinjection (VM) with ordinary microinjection (OM). Fourteen micropipettes were used to inject 420 BDF1 zygotes. Each micropipette finished its injection quota of 30 eggs, which were manipulated one by one alternately using the two types of microinjections, even when it repeatedly pulled out nuclear components. All microinjections were conducted at a compensation pressure of 30 hPa and digitally recorded for subsequent image analysis. VM resulted in slightly better embryonic development in 4-day culture than OM, but significantly shortened the time spent on microinjection and the time spent swelling the pronucleus by 25% and 30%, respectively. These pronuclear swelling times, together with the almost identical degrees of pronuclear swelling in both groups, suggested that VM injected a GFP solution at a 42% higher speed. VM significantly reduced the incidence of pulling out nuclear components, suggesting VM's capability of removing the nuclear components already adhering to the micropipettes. These results indicate VMS is a useful option which is capable of raising the efficiency of microinjection significantly by saving time, labor and cost of microinjection. © 2012 Japanese Society of Mammalian Ova Research.

关键词： Injection speed Longitudinal vibration Microinjection Ultrasonic-range vibration Working efficiency

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Matching Images on the Face of A Buddha Statue Using the Scale Invariant Feature Transform (SIFT) Method 7

Matching Images on the Face of A Buddha Statue Using the Sca...

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7th International Conference on Information Technology, Computer, and Electrical engineering, ICITACEE 2020

作者： Marlinda, Linda Rustad, Supriadi Basuki, Ruri Suko Budiman, Fikri Fatchan, Muhamad Universitas Dian Nuswantoro Doctoral Program of Computer Science Semarang Central Java Indonesia Universitas Pelita Bangsa Informatica Engineering Cikarang West Java Indonesia

ISBN: (纸本)9781728172255

The condition of the statue in Indonesia at this time many are missing, especially the face of the statue. 504 Buddha statues in the Borobudur temple, there are 248 statues which are now in a headless condition. The condition of the lost statue face is due to being stolen, still buried in the area around the temple, or has changed hands to another party. To find the statue's head according to the face, a matching image is needed, one of which uses the sift method. Buddha face statue matching can be done based on the characteristics of hair, eyebrow shape, lips, head shape or attributes found on the head of the statue. The image matching method can describe an image with a specific keypoint using Scale Invariant Feature Transform (SIFT), where each keypoint has a gradient orientation (GO) and gradient magnitude (GM) which are processed into features in the image registration process. The purpose of this study is to match the face images of Buddha statues with different angles. This study aims to match the face image of the original statue with the image of the statue chosen from different angles. The results of this study are that the same image with different angles obtains 90% accuracy. © 2020 IEEE.

关键词： Face recognition

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SIBI Syllable Recognition System With LSTM

SIBI Syllable Recognition System With LSTM

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International Conference on Smart Green Technology in Electrical and Information Systems (ICSGTEIS)

作者： Juli Sulaksono Ida Ayu Dwi Girinatari Made Sudarma Ida Bagus Alit Swarmardika Engineering Science Doctoral Program Udayana University Indonesia

Deaf people are people who are unable to communicate with spoken language. Deaf people communicate with the Indonesian Sign System or commonly known as SIBI. In fact, deaf people often communicate and socialize with normal people, but not all normal people understand and understand SIBI. We as researchers want to provide a way out so that deaf people can convey information to normal people, who do not understand SIBI. The input of this research is SIBI movement which is saved in Video format, then the video is processed with the LSTM algorithm. Video The results of the processing are in the form of classified words, the output of this research is in the form of text. The word data set in this study consisted of 3 words, each word contained 30 data sets. The level of accuracy of this study when recognizing words in SIBI that do not hit the face is 100%.

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Synthesis of a biocomposite based on Kluwih (Artocarpus camansi) seed starch incorporated with carrageenan as a functional additive and cellulose nanofiber filler

Case Studies in Chemical and Environmental Engineering

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Case Studies in Chemical and Environmental engineering 2025年 11卷

作者： Hidayat, Fadlan Indarti, Eti Rahmi Arahman, Nasrul Doctoral Program of Agricultural Science Postgraduate School Universitas Syiah Kuala Banda Aceh 23111 Indonesia Department of Agricultural Product Technology Agriculture Faculty Universitas Syiah Kuala Banda Aceh 23111 Indonesia Atsiri Research Center PUI Universitas Syiah Kuala Jl. Syeh A Rauf No. 5 Darussalam Banda Aceh 23111 Indonesia Department of Chemistry Faculty of Mathematics and Natural Sciences Universitas Syiah Kuala Banda Aceh 23111 Indonesia Department of Chemical Engineering Engineering Faculty Universitas Syiah Kuala Banda Aceh 23111 Indonesia Research Center for Environmental and Natural Resources Universitas Syiah Kuala Jl. Hamzah Fansuri No. 4 Darussalam Banda Aceh 23111 Indonesia

The widespread use of synthetic plastics causes environmental issues because of their nondegradability. In this study, biocomposite from Kluwih seed starch were incorporated with carrageenan and cellulose nanofiber (CNF) to improve their mechanical properties. CNFs were prepared using the TEMPO method with ultrasonication. The variables included starch (1, 1.5, 2 g), carrageenan (3, 4.5, 6 g), and CNF (0.006, 0.12, 0.18 g). The mechanical properties of the biocomposite were optimized using RSM. Zeta potential analysis confirmed the stability of CNFs, and XRD and FTIR analyses revealed improved crystallinity and functional groups. The tensile strength of the biocomposites was 12.08 kgf/mm², which is suitable for sustainable packaging applications. © 2025

关键词： Biocomposite Carrageenan Cellulose nanofiber Kluwih seeds starch Tensile strength

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The Environmental Impact Study of Micro Hydro Power in Pekalongan Indonesia 2

The Environmental Impact Study of Micro Hydro Power in Pekal...

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2nd International Conference on Energy, Environmental and Information System, ICENIS 2017

作者： Suwarto Hadi, Sudharto P. Hermawan Doctoral Program of Environmental Science School of Postgraduate Studies Diponegoro University Semarang Indonesia Department of Environmental Science Diponegoro University Semarang Indonesia Faculty of Engineering Diponegoro University Semarang Indonesia

Curugmuncar II micro hydro power (MHP) located in Petungkriyono sub district is one of three MHPs installed in Pekalongan district. This study aims to analyze the MHP operation environmental impact. The study used qualitative method, with interviews, observations, and material testing. The data used are primary and secondary data. This research was conducted in Curugmuncar Village, Petungkriyono Subdistrict, Pekalongan Regency, Indonesia. MHP has power capacity of 100 KW with power usage of 50 KW. MHP used by 155 users with load capacity 2 A 220 volt AC. The community more used of lights as the houses and street lighting. The MHP operation had several environmental factors such as: Sociology, technically feasible, hydrology, physical and chemical water quality, ergonomics, economically feasible, irrigation, clean water supply, government policy, and others. The supporting factors sustainability of MHP were sociology, irrigation, ergonomics, clean water supply, physical and chemical water quality, hydrology, and government policy. The inhibiting factors of MHP operation were technically feasible, economically feasible, and government policy. The results showed that the MHP environment requires a professional management system to achieve the MHP sustainability. © 2018 The Authors, published by EDP sciences.

关键词： Irrigation

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Fate and state transitions during human blood vessel organoid development

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Cell 2025年

作者： Nikolova, Marina T. He, Zhisong Seimiya, Makiko Jonsson, Gustav Cao, Wuji Okuda, Ryo Wimmer, Reiner A. Okamoto, Ryoko Penninger, Josef M. Camp, J. Gray Treutlein, Barbara Department of Biosystems Science and Engineering ETH Zurich Basel Switzerland Institute of Molecular Biotechnology of the Austrian Academy of Sciences Vienna Austria Vienna BioCenter PhD Program Doctoral School of the University of Vienna and Medical University of Vienna Vienna 1030 Austria Roche Pharma Research and Early Development Roche Innovation Center Basel Switzerland Department of Medical Genetics Life Science Institute University of British Columbia Vancouver V6T 1Z3 BC Canada Department of Laboratory Medicine Medical University of Vienna Vienna Austria Helmholtz Centre for Infection Research Braunschweig Germany Institute of Human Biology Roche Pharma Research and Early Development Roche Innovation Center Basel Basel Switzerland Biozentrum University of Basel Basel Switzerland

Human blood vessel organoids (hBVOs) have emerged as a system to model human vascular development and disease. Here, we use single-cell multi-omics together with genetic and signaling pathway perturbations to reconstruct hBVO development. Mesodermal progenitors bifurcate into endothelial and mural fates in vitro, and xenografted BVOs acquire definitive arteriovenous endothelial cell specification. We infer a gene regulatory network and use single-cell genetic perturbations to identify transcription factors (TFs) and receptors involved in cell fate specification, including a role for MECOM in endothelial and mural specification. We assess the potential of BVOs to generate organotypic states, identify TFs lacking expression in hBVOs, and find that induced LEF1 overexpression increases brain vasculature specificity. Finally, we map vascular disease-associated genes to hBVO cell states and analyze an hBVO model of diabetes. Altogether, we provide a comprehensive cell state atlas of hBVO development and illuminate the power and limitation of hBVOs for translational research. © 2025 The Authors

关键词： arteriovenous specification human blood vessel organoid human development organoid cell atlas single-cell genomics single-cell perturbation screen

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Improving LIFS image coding via extended condensations

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Systems and Computers in Japan 1999年第5期30卷 1-8页

作者： You, Hyunbea Takahashi, Takashi Hasegawa, Yuki Tokunaga, Ryuji Doctoral Program in Engineering University of Tsukuba Tsukuba 305-8573 Japan College of Information Science University of Tsukuba Tsukuba 305-8573 Japan Inst. of Info. Sci. and Electronics University of Tsukuba Tsukuba 305-8573 Japan

Local iterated function system (LIFS) image coding is currently a main topic of fractal image coding and is being studied from various points of view. However, its performance is still inferior to conventional schemes such as JPEG. This paper proposes a novel local transformation called extended condensation and reports that the LIFS coding scheme is significantly improved by combining the technique with Ida's average separation scheme. When the compression ratio is high, a better decoded image is acquired by the proposed scheme than by JPEG.

关键词： Image coding

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Learning the classification of traffic accident types

Learning the classification of traffic accident types

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2012 4th International Conference on Intelligent Networking and Collaborative Systems, INCoS 2012

作者： Beshah, Tibebe Ejigu, Dejene Krömer, Pavel Snášel, Václav Platoš, Jan Abraham, Ajith IT Doctoral Program Addis Ababa University Addis Ababa Ethiopia Faculty of Electrical Engineering and Computer Science VŠB Technical University of Ostrava Ostrava Czech Republic

ISBN: (纸本)9780769548081

This paper presents an application of evolutionary fuzzy classifier design to a road accident data analysis. A fuzzy classifier evolved by the genetic programming was used to learn the labeling of data in a real world road accident data set. The symbolic classifier was inspected in order to select important features and the relations among them. Selected features provide a feedback for traffic management authorities that can exploit the knowledge to improve road safety and mitigate the severity of traffic accidents. © 2012 IEEE.

关键词： Genetic algorithms

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