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Toward multichannel core-shell catalysts: Utilizing templating of silica sols with SBA-15 to achieve core-shell architecture in multichannel catalysts featuring a hierarchical porous structure

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Ceramics International 2025年第16期51卷 22480-22485页

作者： Pudlo, Wojciech Golkowska, Anna Prusik, Krystian Lach, Radoslaw Department of Chemical Engineering and Process Design Silesian University of Technology Strzody 7 Gliwice Poland Department of Drug Forms Technology Faculty of Pharmacy Wroclaw Medical University Borowska 211 Wroclaw Poland Institute of Materials Engineering University of Silesia in Katowice 75 Pulku Piechoty 1A Chorzow Poland Silesian Center for Education and Interdisciplinary Research University of Silesia in Katowice 75 Pulku Piechoty 1A Chorzow Poland Department of Ceramics and Refractories AGH University of Science and Technology in Krakow Al. Mickiewicza 30 Kraków Poland

We synthesized multichannel core-shell catalysts based on SBA-15 embedded in silica with a hierarchical porous structure. The addition of SBA-15 to silica sol changed the porous structure both at the macro- and mesoscale, contributing to the generation of additional phase separation, and thus forming a core-shell structure containing SBA-15 domains surrounded by a mesoporous silica film. These novel hybrid materials, similar to their precursors, i.e., hierarchical porous materials, can be potentially applied as carriers for catalysts, drugs, or enzymes, or as flow-through (bio)chemical microreactors. © 2025

关键词： Shells (structures)

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Revolutionizing Industry 5.0: Harnessing the Power of Digital Human Modelling

Revolutionizing Industry 5.0: Harnessing the Power of Digita...

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International Symposium for Production Research, ISPR 2023

作者： Donmezer, Semih Demircioglu, Pinar Bogrekci, Ismail Bas, Gokcen Durakbasa, M. Numan Institute of Production Engineering and Photonic Technologies Vienna University of Technology Vienna1060 Austria Institute of Materials Science TUM School of Engineering and Design Technical University of Munich Garching85748 Germany Department of Mechanical Engineering Faculty of Engineering Aydin Adnan Menderes University Aydin09100 Turkey

ISBN: (纸本)9783031539909

Industry 5.0 signifies a significant transformation in the manufacturing sector, propelled by the convergence of advanced technologies and the incorporation of human-centric principles. This work explores the transformative potential of Digital Human Modelling (DHM) in revolutionizing Industry 5.0 across various sectors, including manufacturing, textiles, robotics, and energy. The manufacturing sector stands to benefit significantly from the application of DHM, as it enables enhanced design and optimization of production processes while considering human factors and ergonomics. DHM facilitates the development of human-centered smart factories, enabling efficient operations and improved safety management. In the textile sector, DHM offers opportunities to enhance the design of ergonomic workstations, optimize worker comfort, and improve overall productivity. In the area of robotics, DHM plays a critical role in ensuring the safety and well-being of workers. It enables the evaluation and optimization of human-robot interactions. DHM enables the design of collaborative work environments, where robots and humans can work together. In the energy sector, DHM contributes to the optimization of energy consumption, reducing carbon footprints, and promoting sustainable practices. By harnessing the power of DHM in these sectors, Industry 5.0 can achieve remarkable advancements in terms of efficiency, safety, productivity, and sustainability. This paper highlights the potential of DHM to reshape the manufacturing sector and its applications across textiles, robotics, and energy. The insights and findings presented here serve as a guide for researchers and practitioners aiming to unlock the full potential of DHM in driving the success of Industry 5.0. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.

关键词： Textiles

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Focusing Airborne Ultrasound with Partially Occluded Emission from Rectangular Plate with Flexural Vibration Mode

arXiv

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arXiv 2024年

作者： Hasegawa, Keisuke Fujimori, Masaya Takasaki, Masaya Department of Mechanical Science Graduate School of Science and Engineering Saitama University Saitama338-8570 Japan The Department of Mechanical Engineering and System Design Faculty of Engineering Saitama University Japan

We propose a focusing method of intense midair ultrasound out of ultrasonic emission from a single flexurally vibrating square plate partially covered with a purposely designed amplitude mask. Many applications relying on nonlinear acoustic effects, such as radiation force employed in acoustic levitation, have been devised. For those applications, focused intense airborne ultrasound is conventionally formed using phased arrays of transducers or sound sources with specific fabricated shapes. However, the former strategies are considerably costly, and the latter may require minute three-dimensional fabrication processes, which both hinder their utility, especially for the construction of a large ultrasound emitting aperture. Our method offers a possible solution for this, where the amplitude masks are designed in a fashion similar to the Freznel-zone-plate designing, but according to the positions of nodes and antinodes of the vibrating plate that are measured beforehand. We experimentally demonstrate the successful formation of midair ultrasound focus at a desired position. Our method only requires a monolithic plate, a driving transducer under the plate, and an amplitude mask fabricated out of laser machining processes of an acrylic plate. Magnification of the spatial scale of ultrasound apertures based on our method is much more readily and affordably achieved than conventional methods, which will lead to new midair ultrasound applications with the whole room workspace. 1 © 2024, CC BY.

关键词： Vibrations (mechanical)

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2.45 GHz Frequency- Tracking Electro-Optic Imaging Using Polarization CMOS Image Sensor

2.45 GHz Frequency- Tracking Electro-Optic Imaging Using Pol...

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2024 IEEE Asia-Pacific Microwave Conference, APMC 2024

作者： Okada, Ryoma Mizuno, Maya Takehara, Hironari Haruta, Makito Tashiro, Hiroyuki Ohta, Jun Sasagawa, Kiyotaka Graduate School of Science and Technology Nara Institute of Science and Technology Nara Ikoma Japan Radio Research Institute National Institute of Information and Communications Technology Koganei Tokyo Japan Graduate School of Science and Technology Nara Institute of Science and Technology Chitose Institute of Science and Technology Department of Opto-Electronic System Engineering Nara Hokkaido Chitose Ikoma Japan Graduate School of Science and Technology Nara Institute of Science and Technology Kyushu University Faculty of Medical Sciences Fukuoka Maidashi Ikoma Japan Institute for Research Initiatives Nara Institute of Science and Technology Nara Ikoma Japan

ISBN: (纸本)9798350363548

In this study, we developed an optical local oscillator signal generation system that tracks the frequency of the electric field to be observed. This system was applied to our highly sensitive electric field imaging system using the electro-optic (EO) effect. It enables electric field imaging by tracking a time-varying frequency wave source, such as frequency modulation (FM). Using this configuration, we successfully imaged at the edge of a PCB antenna with a signal modulated at 2.45 GHz, FM deviation of 100 kHz, and sweep frequency of 100 kHz. © 2024 IEEE.

关键词： CMOS integrated circuits

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PID Controller design for a Mechatronic system using Lion Optimization Algorithm 5

PID Controller Design for a Mechatronic System using Lion Op...

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5th National and the 1st International Conference on Applied Research in Electrical engineering, AREE 2025

作者： Safdari, Amirhossein Mansouri, Amirhosein Fazli, Mohammad Javad Zarafshan, Payam Alipour, Khalil Tarvirdizadeh, Bahram College of Interdisciplinary Science and Technology University of Tehran School of Intelligent Systems Department of Mechatronics Engineering Tehran Iran Shahid Beheshti University Faculty of Mechanical and Energy Engineering Department of Renewable Energy Engineering Tehran Iran University of Tehran School of Mechanical Engineering College of Engineering Tehran Iran Western Sydney University School of Engineering Design and Built Environment Sydney Australia

ISBN: (纸本)9798350377170

Controllers act as a bridge between the operator and the system, allowing the operator to communicate with the system as if it were a human. In other words, the controller is like the thinking brain of an industrial process. A controller communicates all the commands that an expert wants to apply to the system to follow its standard flow process and ultimately achieve the desired response. When industrial processes are left alone and without a controller in the control loop, they typically do not give satisfactory responses in terms of transient or steady-state characteristics. Therefore, the selection and programming of an appropriate controller is one of the most important steps in an industrial process. One of the most widely used and well-known controllers is the PID controller, whose gains are often determined experimentally or through trial and error. However, finding the optimal gains is always a challenge. In this study, for the first time, the optimal gains of the PID controller are determined using Lion Optimization Algorithm (LOA). This research has introduced a systematic and efficient approach to achieving optimal control of mechatronic systems. © 2025 IEEE.

关键词： Three term control systems

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A 180-Degree Phase Difference Output of Wilkinson Power Divider Using Microstrip Parallel Coupled Lines 6

A 180-Degree Phase Difference Output of Wilkinson Power Divi...

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6th International Conference on Power, Energy and Innovations, ICPEI 2024

作者： Phanomupatum, Pratya Phromloungsri, Ravee Tama, Rachata Pongthavornkamol, Tiwat Wongpatsa, Decha Sonasang, Somchat Nakhon Phanom University Faculty Industrial Technology Department of Electronics Nakhon Phanom Thailand Udon Thani Rajabhat University Computer and Communication Engineering Faculty of Technology Udon Thani Thailand National Electronic and Computer Technology Center National Science and Technology Development Agency Location and Automatic Identification System Research Team Communication and Network Research Group Pathumthani Thailand Faculty Industrial Technology Nakhon Phanom Thailand

ISBN: (纸本)9798350356779

The design of a 180° output phase difference Wilkinson power divider for L-band applications is detailed in this article. The Wilkinson power is generated through the utilization of the parallel coupler's phase shifter. To showcase the potential of the suggested power divider, an FR4 microwave substrate is fabricated with a narrow band of 1.6 GHz to accommodate radio astronomy systems. The insertion loss, return loss, and isolation loss for the power divider's difference phase are accurately simulated at the operational frequency. © 2024 IEEE.

关键词： Radio astronomy

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Network-Transparent Load Balancing and Migration for Edge Computing

Network-Transparent Load Balancing and Migration for Edge Co...

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Consumer Communications and Networking Conference, CCNC IEEE

作者： Yohei Namba Ryo Morishima Hiroaki Nishi Graduate School of Science and Technology Keio University Yokohama Kanagawa Japan Department of System Design Faculty of Science and Technology Keio University Yokohama Kanagawa Japan

The network infrastructure in a smart community uses the cloud and compute servers, and the edge and fog areas to perform processing in the optimal place. Nodes in the edge and fog areas have various processing capacities, and there must be load-balancing mechanisms to meet the requirements of applications. However, Internet of Things (IoT) devices are generally small, computationally constrained, and numerous, so reconfiguration and functionality updates for the network must be kept to a minimum. In addition, if nodes establish connections with other nodes to exchange their information, the number of connections will be large, and communication costs will be high. In this study, we use nodes called “Distributor” that can monitor data flow through the network without changing the existing infrastructure. Piggyback technique is used to add information onto the packets flowing in the network. Distributors add the information to the packets and exchange information to each other without establishing connections with other nodes, and they perform load balancing based on the information. By changing and migrating the processing locations among Distributors, IoT devices can continue to communicate with other nodes even during load balancing. Experiments confirmed that load balancing could be performed to prepare for sudden load increases and that the impact of piggybacking on occupied bandwidth and processing delay was 0.177% and 0.06%, respectively. We also confirmed that sensor data can be sent without reconnecting communications, even during load balancing.

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Improving the functionality and biological properties of Iranian date palm (Phoenix dactylifera L) seeds protein with different proteases

Food and Humanity

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Food and Humanity 2023年 1卷 675-683页

作者： Sarabandi, Khashayar Akbarbaglu, Zahra Sarabandi, Roxana Tamjidi, Fardin Gharehbeglou, Pouria Jafari, Seid Mahdi Department of Food Science & Technology School of Medicine Zahedan University of Medical Sciences Zahedan Iran Department of Food Science College of Agriculture University of Tabriz Tabriz *** Iran Department of Basic Science Faculty of Veterinary Medicine University of Zabol Zabol Iran Department of Food Science & Engineering Faculty of Agriculture University of Kurdistan Sanandaj Iran Department of Food Science and Technology Faculty of Nutrition and Food Science Tabriz University of Medical Sciences Tabriz Iran Nutrition Research Center Tabriz University of Medical Sciences Tabriz Iran Department of Food Materials & Process Design Engineering Gorgan University of Agricultural Sciences and Natural Resources Gorgan Iran

In this study, date seeds as a major agricultural by-product were utilized for production of antioxidant peptides with techno-functional properties. Date seeds protein (DSP) was extracted and hydrolyzed by different enzymes (Alcalase, trypsin, pancreatin and pepsin). Then, the degree of hydrolysis (DH), amino acid composition, functional characteristics (e.g., solubility, and water- and oil-holding capacity), free radical inhibiting activity, reducing power, total antioxidant activity (TAA) and metal ion chelating activity of the hydrolysates (DSPHs) were examined. Chemical analysis of the obtained protein concentrate (∼ 65 %) indicated the presence of amide A and B regions. Also, amide I to III regions and secondary structures (α-helix, β-sheet, β-tern and random coils) were observed in the extracted DSP-protein. The DH and essential amino acids content of DSPHs were affected by enzyme type. The hydrolysis treatments resulted in a significant increase in the solubility of DSP, particularly in acidic pH levels and around its isoelectric point. In comparison to DSP, DSPHs also exhibited higher inhibitory activity against free radicals such as DPPH (72.5 %), ABTS (92.5 %), OH (64.5 %), and NO (57.9 %). Furthermore, DSPHs demonstrated greater reducing power (1.84), TAA (2.3), and enhanced chelating activity towards iron (73.2 %) and copper (40.1 %) transition ions. Various factors, including DH and the composition of amino acids, especially the amount of charged, hydrophobic, and antioxidant types, have played a crucial role in these outcomes. With their significant nutritive, functional, antioxidant, and metal ion chelating activities, DSPHs can serve as a natural additive to enhance the nutritional value and stability of various food products. © 2023 Elsevier B.V.

关键词： Antioxidant activity Bioactive peptides Date seeds Enzymatic hydrolysis Techno-functional properties

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Seam Strength Prediction for Different Stitch Types Considering Stitch Density of Cotton Woven Fabrics

Textile and Leather Review

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Textile and Leather Review 2022年 5卷 53-69页

作者： Islam, Md. Mazharul Hossain, Md. Tanjim Repon, Md. Reazuddin Islam, Tarikul Kibria, Golam Jalil, Mohammad Abdul Department of Textile Engineering Northern University of Bangladesh Dhaka Bangladesh ZR Research Institute for Advanced Materials Sherpur Bangladesh Department of Textile Engineering Khwaja Yunus Ali University Sirajganj Bangladesh Department of Production Engineering Faculty of Mechanical Engineering and Design Kaunas University of Technology Kaunas Lithuania Department of Textile Engineering Jashore University of Science and Technology Jashore Bangladesh Department of Apparel Manufacturing and Technology BGMEA University of Fashion and Technology Dhaka Bangladesh Department of Textile Engineering Khulna University of Engineering & Technology Khulna Bangladesh

Seam strength is critical in achieving the proper and adequate quality seam, which eventually determines the overall quality of any garment. The target of this research was to investigate exactly how different stitch density affected seam strength for different stitch types. Commercially available, 100% cotton plain weave structured woven fabric with mass per unit area of 270 g/m2was used in this analysis. Two different stitch types, such as lock stitch (ISO#301) and chain stitch (ISO#401), along with four stitch densities like 8, 10, 12 and 14 per inch were utilized. The seam strength of the prepared samples was determined using a tensile strength tester followed by the ASTM D1683 standard procedure. The impact of independent variables on superimposed seam strength was statistically analyzed using a regression correlation with the help of SPSS software to construct a regression equation to predict seam strength before the manufacturing process. The study found a non-linear relationship between seam strength and stitch density. When the stitch density is too low, the seam strength is shown low as well, because the cloth cannot be held under tensile load. In a very compact woven fabric, structural jamming or intrinsic puckering occurs if it is too high. As a result, the best stitch density should be chosen to achieve the best seam strength. This study will help the manufacturers choose a suitable SPI for lock and chain stitches from polynomial regression equations before the sewing production of cotton woven fabric, which was not predicted by any researcher before. Therefore, the optimum stitch density can be chosen using regression equations to get the best result for seam strength. © 2022 The authors.

关键词： Weaving

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Enhanced Object Detection and Classification via Multi-Method Fusion

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Computers, Materials & Continua 2024年第5期79卷 3315-3331页

作者： Muhammad Waqas Ahmed Nouf Abdullah Almujally Abdulwahab Alazeb Asaad Algarni Jeongmin Park Department of Computer Science Air UniversityIslamabad44000Pakistan Department of Information Systems College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Department of Computer Science College of Computer Science and Information SystemNajran UniversityNajran55461Saudi Arabia Department of Computer Sciences Faculty of Computing and Information TechnologyNorthern Border UniversityRafha91911Saudi Arabia Department of Computer Engineering Tech University of Korea237 Sangidaehak-roSiheung-siGyeonggi-do15073South Korea

Advances in machine vision systems have revolutionized applications such as autonomous driving,robotic navigation,and augmented *** substantial progress,challenges persist,including dynamic backgrounds,occlusion,and limited labeled *** address these challenges,we introduce a comprehensive methodology toenhance image classification and object detection *** proposed approach involves the integration ofmultiple methods in a complementary *** process commences with the application of Gaussian filters tomitigate the impact of noise *** images are then processed for segmentation using Fuzzy C-Meanssegmentation in parallel with saliency mapping techniques to find the most prominent *** Binary RobustIndependent Elementary Features(BRIEF)characteristics are then extracted fromdata derived fromsaliency mapsand segmented *** precise object separation,Oriented FAST and Rotated BRIEF(ORB)algorithms *** Algorithms(GAs)are used to optimize Random Forest classifier parameters which lead toimproved *** method stands out due to its comprehensive approach,adeptly addressing challengessuch as changing backdrops,occlusion,and limited labeled data concurrently.A significant enhancement hasbeen achieved by integrating Genetic Algorithms(GAs)to precisely optimize *** minor adjustmentnot only boosts the uniqueness of our system but also amplifies its overall *** proposed methodologyhas demonstrated notable classification accuracies of 90.9%and 89.0%on the challenging Corel-1k and MSRCdatasets,***,detection accuracies of 87.2%and 86.6%have been *** ourmethod performed well in both datasets it may face difficulties in real-world data especially where datasets havehighly complex *** these limitations,GAintegration for parameter optimization shows a notablestrength in enhancing the overall adaptability and performance of our system.

关键词： BRIEF features saliency map fuzzy c-means object detection object recognition

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