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arXiv 2022年

作者： Tosyali, Eren Oniz, Y. Aydogmus, F. Opticianry Vocational School of Health Services Istanbul Bilgi University Kustepe Sisli Istanbul34387 Turkey Faculty of Engineering and Natural Sciences Department of Mechatronics Engineering Istanbul Bilgi University Eyup Istanbul34060 Turkey Faculty of Science Physics Istanbul University Vezneciler Istanbul34134 Turkey

Since the presence of chaos in Bose-Einstein condensate (BEC) systems plays a destructive role that can undermine the stability of the condensates, controlling the chaos is of great importance for the creation of the BEC. In this paper, a fuzzy logic controller (FLC) to synchronize the chaotic dynamics of two identical master-slave BEC systems has been proposed. Unlike the conventional approaches, where expert knowledge is directly used to construct the fuzzy rules and membership functions, the fuzzy rules have been constructed using Lyapunov stability theorem ensuring the synchronization process. The effectiveness of the proposed controller has been demonstrated numerically. © 2022, CC BY.

关键词： Fuzzy inference

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Alternative Strategy for Development of Dielectric Calcium Copper Titanate‑Based Electrolytes for Low‑Temperature Solid Oxide Fuel Cells

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Nano-Micro Letters 2025年第1期17卷 310-332页

作者： Sajid Rauf Muhammad Bilal Hanif Zuhra Tayyab Matej Veis MAKYousaf Shah Naveed Mushtaq Dmitry Medvedev Yibin Tian Chen Xia Martin Motola Bin Zhu College of Mechatronics and Control Engineering Shenzhen UniversityShenzhen 518060People’s Republic of China Department of Inorganic Chemistry Faculty of Natural SciencesComenius University BratislavaIlkovicova684215 BratislavaSlovakia Energy Storage Joint Research Center School of Energy and EnvironmentSoutheast UniversityNanjing 210096People’s Republic of China Hydrogen Energy Laboratory Ural Federal University620002 EkaterinburgRussia Laboratory of Electrochemical Devices Based on Solid Oxide Proton Electrolytes Institute of High Temperature Electrochemistry620066 EkaterinburgRussia School of Microelectronics Hubei UniversityWuhan 430062People’s Republic of China

The development of low-temperature solid oxide fuel cells(LT-SOFCs)is of significant importance for realizing the widespread application of *** has stimulated a substantial materials research effort in developing high oxide-ion conductivity in the electrolyte layer of *** this context,for the first time,a dielectric material,CaCu_(3)Ti_(4)O_(12)(CCTO)is designed for LT-SOFCs electrolyte application in this *** individual CCTO and its heterostructure materials with a p-type Ni_(0.8)Co_(0.15)Al_(0.05)LiO_(2−δ)(NCAL)semiconductor are evaluated as alternative electrolytes in LT-SOFC at 450–550℃.The single cell with the individual CCTO electrolyte exhibits a power output of approximately 263 mW cm^(-2) and an open-circuit voltage(OCV)of 0.95 V at 550℃,while the cell with the CCTO–NCAL heterostructure electrolyte capably delivers an improved power output of approximately 605 mW cm^(-2) along with a higher OCV over 1.0 V,which indicates the introduction of high hole-conducting NCAL into the CCTO could enhance the cell performance rather than inducing any potential short-circuiting *** is found that these promising outcomes are due to the interplay of the dielectric material,its structure,and overall properties that led to improve electrochemical mechanism in CCTO–***,density functional theory calculations provide the detailed information about the electronic and structural properties of the CCTO and NCAL and their heterostructure CCTO–*** study thus provides a new approach for developing new advanced electrolytes for LT-SOFCs.

关键词： LT-SOFCs Dielectric CaCu_(3)Ti_(4)O_(12) Semiconductor Ni_(0.8)Co_(0.15)Al_(0.05)LiO_(2−δ) Ionic conductivity Heterostructure electrolyte

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Preparation and properties of bimetallic Co/Cu ZIF-67 for electrochemical application 1

Preparation and properties of bimetallic Co/Cu ZIF-67 for el...

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1st Annual International Conference on Sensor Technology, INCOST 2023

作者： Wulandari, C. Gumilar, G. Nugraha Wasisto, H.S. Iqbal, M. Irzaman Nugroho, W.S. Rusydi, F. Doctoral Program of Engineering Physics Faculty of Industrial Technology Institut Teknologi Bandung Ganesha 10 Bandung40132 Indonesia Advanced Functional Materials Research Group Institut Teknologi Bandung Bandung40132 Indonesia PT Biostark Analitika Inovasi Bandung40375 Indonesia Bandung40135 Indonesia Research Center for Nanosciences and Nanotechnology Institut Teknologi Bandung Bandung40132 Indonesia PT Nanosense Instrument Indonesia Umbulharjo Yogyakarta55167 Indonesia Department of Physics Faculty of Mathematics and Natural Sciences IPB University Bogor16680 Indonesia Departement of Veterinary Public Health Faculty of Veterinary Medicine Universitas Gadjah Mada Yogyakarta55281 Indonesia Department of Physics Faculty of Science and Technology Universitas Airlangga Surabaya60115 Indonesia

Efforts to enhance the electrochemical properties of materials have become the focus of numerous studies because these properties are essential in various fields of application. Zeolitic imidazole framework-67 (ZIF-67) is a type of metal-organic framework (MOFs) expected to demonstrate excellent performance in electrochemical applications due to its numerous distinct properties. Consequently, various strategies and techniques have been developed to improve the electrochemical performance of ZIF-67. In this study, we employed bimetallic ZIF-67 constructed with cobalt (Co) and copper (Cu) metal ions within the imidazole frameworks. The use of bimetal is expected to increase conductivity and fine-tune the physicochemical properties of ZIF-67. Using coprecipitation methods, we synthesized both single-metal and bimetallic ZIF-67 and compared their characterizations. The addition of Cu metal ions does not alter the materials phase, ensuring compatibility with the single-metal ZIF-67 structure. However, the rhombic dodecahedron morphology of ZIF-67 shifts from a smooth to a concave and rough surface in Co/Cu ZIF-67. Furthermore, Co/Cu ZIF-67 exhibits higher peak current on their cyclic voltammetry (CV) curve by 46.15 μA. The results effectively illustrate the advantages of bimetal on ZIF-67 properties and performance. Finally, this study succesfully briefly demonstrate the potential development of Co/Cu-based ZIF-67 for various electrochemical applications. © Published under licence by IOP Publishing Ltd.

关键词： Metal ions

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FXAI: Fusing XAI for Predicting COVID-19 Using Diverse Chest X - Ray Images

FXAI: Fusing XAI for Predicting COVID-19 Using Diverse Chest...

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International Conference on Intelligent System and Knowledge engineering, ISKE

作者： Radhwan A. A. Saleh Shawqi Mohammed Farea Zaid Al-Huda Metin Ertunc Daniel Kvak Mugahed A. Al-antari Department of Mechatronics Engineering Kocaeli University Kocaeli Turkey Faculty of Engineering and Natural Sciences Sabanci University Istanbul Turkey School of Computing and Artificial Intelligence Southwest Jiaotong University Sichuan China CEO and Leader of AI R&D Carebot Ltd. Prague Czech Republic Department of Artificial Intelligence DaeyangAICenter Sejong University Seoul Republic of Korea

Fusing explainable artificial intelligence (FXAI) is currently a prominent research topic in medical imaging interpretations. The proposed FXAI has the capability to provide the following benefits. Firstly, it can extract strong and reliable high-level deep features by combining various standard AI networks. Secondly, it can simultaneously generate visual explainable saliency maps associated with each chest X-ray (CXR) scan. Such heat maps not only demonstrate the most relevant regions of the AI decision-making process but also offer advantages to radiologists and patients. Thirdly, it enhances prediction performance to deliver an optimal intelligent solution for communities worldwide. These advantages can support the development of an optimal treatment plan, reduce medical costs, and enhance the capabilities of health care systems. We have trained and evaluated the proposed FXAI using a diverse benchmark medical CXR dataset that has been collected from various public resources. Our findings encourage researchers and stakeholders in the medical industry to validate this proposed framework in a practical manner.

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Numerical investigation and validation of multiphase flow in annular jet pump—a mixture model approach

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engineering Science and Technology, an International Journal 2025年 69卷

作者： Sadia Riaz Jussi Aaltonen Tobias Pinkse Kari Koskinen Mechatronics Research Group Faculty of Engineering and Natural Sciences Tampere University Korkeakoulunkatu 7 33720 Tampere Finland REinvent GmbH Germany

Slurry transport through pipelines is a common experience of multiphase flows in the mining industry, and there are many suitable CFD-based multiphase models for analysis. The Annular Jet Pump (AJP) is engineered to handle the complex flow dynamics associated with slurry transport, where the interactions between solid particles and the carrier fluid play a crucial role in determining the pumṕs performance. In this study, a multiphase mixture model is employed to simulate the behaviour of the slurry within the AJP, providing insights into the effects of dispersed particle size, dispersed phase concentration, nozzle convergence angle, and primary fluid́s flow rate on pump suction and pressure distribution. The CFD simulations are conducted to predict the performance characteristics, which are then validated against literature data (which is simulated and experimental). Variations in flow variables and turbulence variables are observed at the centreline of the AJP. The results demonstrate that the proposed Annular Jet Pumṕs design achieves efficient slurry transport and highlights the effectiveness of the multiphase mixture model in accurately predicting the pump’s performance under varying operational conditions. The trend in power input variation, the output’s mass flow rate, and Specific Energy Consumption are observed for a range of primary fluid́s volumetric flow rates. This integrated approach offers a comprehensive understanding of the fluid-particle interactions within the pump, contributing to efficient slurry transport systems in industrial applications.

关键词： Slurry Transport System Mixture Model Realizable k- ∊ turbulence model Schiller-Naumann slip model Volume fraction Solid density Particle size

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Direct Machine Translation Indonesian-Batak Toba

Direct Machine Translation Indonesian-Batak Toba

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Conference on New Media Studies (CoNMedia)

作者： Zaenal Abidin Akmal Junaidi Wamiliana Frengky Marulitua Togatorop Imam Ahmad Ajeng Savitri Puspaningrum Doctoral Program of Mathematics and Natural Sciences Universitas Lampung Bandarlampung Indonesia Department of Computer Science Universitas Lampung Bandarlampung Indonesia Department of Mathematics Universitas Lampung Bandarlampung Indonesia Faculty of Engineering and Computer Science Universitas Teknokrat Indonesia Bandarlampung Indonesia

The translation application was developed using Python and Visual Studio Code as the primary programming environment. Technological progress has led to the younger generation forsaking the Batak language in their daily interactions, perceiving it as inconsequential to their social circle and contributing to the decline of regional languages. There is concern that regional languages, namely the Batak language, may lose significance or face extinction if this trend persists. This translation program is being implemented to aid in preserving regional languages, specifically the Batak language, enabling it to conform to contemporary circumstances. The development of this translation engine utilized the Batak language dictionary. The process of designing, coding, and testing is responsible for creating this direct machine translation. The BLEU score is employed to assess the caliber of machine translation. The study's findings indicate that the % BLEU value for ten sentences was 32.3%. This score falls within the category of sentences whose meaning can be understood, but the sentence structure still needs development. The direct machine translation developed in this Web platform is highly proficient and practical.

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GHGs emission reductions and economic saving by enhancing switching to natural gas vehicles in Egypt

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Bulletin of the National Research Centre 2023年第1期47卷 1-18页

作者： Shaarawi, Sayed I. Abutaleb, Khaled Aboelmagd, Ashraf R. Temraz, Tarek Marine Science –AdapTM Program Faculty of Science Suez Canal University Ismailia Egypt Egyptian Natural Gas Holding Company (EGAS) Petroleum and Mineral Resources Ministry Nasr City Cairo Egypt National Authority for Remote Sensing and Space Sciences (NARSS) Cairo Egypt Agricultural Research Council Natural Resources and Engineering (ARC-NRE) Pretoria South Africa School of Animal Plant and Environmental Sciences University of Witwatersrand Johannesburg South Africa

Transportation and Climate change are inextricably linked. As the transport sector is the primary consumer of petroleum products and therefore, contributes a significant share of greenhouse gases (GHGs). Mobile sources share ranges between 25 and 30% of total Egypt’s GHG emissions. So, Egypt is giving a great concern for natural gas vehicles (NGVs) as low-carbon alternative to gasoline/diesel vehicles. This study aims to analyze the economic and the environmental impact of the NGV fleet growth in Egypt with future prospective scenarios, concurrently with governmental strategy based on expansion of compressed natural gas fueling stations infrastructure and incentives for NGV transformation. Egypt’s NGV program led to about 5 Mt CO2 emissions reductions and about 21.57 billion EGP (US$1.4 billion) economic saving since starting up to end of 2021. And implementing of presidential initiative in 2021 to accelerate NGVs led to jumping in CO2 emissions reductions and economic saving by about 40% and 49% of pervious year, respectively. It is observed that scenario no. 1, of NGV adopting percent 15%, is the most fitted business as usual scenario to the presidential initiative and will lead to emissions reduction by about 30 Mt CO2 and economic saving by about 278 billion EGP (US$17.6 billion).

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Health risk assessment of soil contamination with heavy metals in a child care center co-located in vicinity to small scale industrial area: Case study of Thailand

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Case Studies in Chemical and Environmental engineering 2024年 9卷

作者： Simatupang, Cathleen Ariella Santhaweesuk, Kanitthika Strezov, Vladimir Pongkiatkul, Prapat Boontanon, Narin Jindal, Ranjna Boontanon, Suwanna Kitpati Graduate Program in Environmental and Water Resources Engineering Department of Civil and Environmental Engineering Faculty of Engineering Mahidol University Nakhon Pathom 73170 Thailand School of Natural Sciences Faculty of Science and Engineering Macquarie University 2109 NSW Australia Department of Environmental Engineering King Mongkut's University of Technology Thonburi Bangkok 10800 Thailand Faculty of Environment and Resource Studies Mahidol University Nakhon Pathom 73170 Thailand Environmental Engineering and Management Program Department of Energy Environment and Climate Change School of Environment and Resources Development Asian Institute of Technology Pathumthani 12120 Thailand Graduate School of Global Environmental Studies Kyoto University Yoshida Sakyo-Ku Kyoto 606-8501 Japan

Environmental impacts of small scale industries are still not well investigated, especially for estates where multiple small scale industries are clustered causing cumulative effects potentially impacting most vulnerable groups. This study aimed to investigate the concentrations of heavy metals (Mn, Fe, Ni, Cu, Pb, Al, Zn, and Cr) and the metalloid (As) in surface soils near the intensely active small-scale industrial area in Thailand, assess the contamination levels in the co-located child care center, and estimate potential human health risks from exposure to the heavy metals. Surface soil heavy metal(loid) elements were evaluated across a background area, area near main roads, a small-scale industrial area, and a child care centre. The concentrations of Al were found be the highest at all investigation sites, with the most elevated concentrations observed in the small-scale industrial area. The concentration of Pb in the industrial area reached 1176 mg/kg, exceeding the national standard and acceptable limit. Moreover, the contamination level for Cu, Pb, and Zn in the industrial area imply a considerable risk with enrichment factor EF > 40, and geo-accumulation index Igeo ≥5. Heavy metal levels (Ni, Cu, Pb) in the soil near the road and the child care center were similar, suggesting shared contamination sources. Conversely, Al, Zn, As, and Cr in the child care center had slightly higher concentrations than near the road but lower than the small-scale industrial area, indicating potential industrial influence on metal levels within the child care center. The principal component analysis showed Mn and Fe distributed in the background, while As, Pb, Ni, Cu, Al, Zn, and Cr accumulated in the small-scale industrial area. The findings indicate that small-scale industrial activities contribute to elevated levels of heavy metals in the soil, particularly within the child care center, posing significant ingestion risks, especially for children (HI > 1). Implementing conta

关键词： Children Contamination sources Environmental impact PCA Surface soil

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Sub-lethal pesticide exposure interferes with honey bee memory of learnt colours

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Science of the Total Environment 2025年 962卷 178460页

作者： Rükün, Tuğçe Ercan, Neslim Canko, Ece Avşar, Bihter Dyer, Adrian G. Garcia, Jair E. Çakmak, İbrahim Mayack, Christopher Molecular Biology Genetics and Bioengineering Program Faculty of Engineering and Natural Sciences Sabancı University Istanbul Tuzla Turkey School of Media and Communication Royal Melbourne Institute of Technology Melbourne Australia Beekeeping Development-Application and Research Center Bursa Uludağ University Bursa Turkey USDA/ARS/WRRC Invasive Species and Pollinator Health Research Unit DavisCA95616 United States

Neonicotinoid pesticide use has increased around the world despite accumulating evidence of their potential detrimental sub-lethal effects on the behaviour and physiology of bees, and its contribution to the global decline in bee health. Whilst flower colour is considered as one of the most important signals for foraging honey bees (Apis mellifera), the effects of pesticides on colour vision and memory retention in a natural setting remain unknown. We trained free flying honey bee foragers by presenting artificial yellow flower feeder, to an unscented artificial flower patch with 6 different flower colours to investigate if sub-lethal levels of imidacloprid would disrupt the acquired association made between the yellow flower colour from the feeder and food reward. We found that for doses higher than 4 % of LD50 value, the foraging honey bees no longer preferentially visited the yellow flowers within the flower patch and instead, we suspect, reverted back to baseline foraging preferences, with a complete loss of the yellow preference. Our honey bee colour vision modelling indicates that discriminating the yellow colour from the rest should have been easy cognitive task. Pesticide exposure also resulted in a significant increase in Lop1, UVop, and Blop, and a decrease in CaMKII and CREB gene expression. Our results suggest that memory loss is the most plausible mechanism to explain the alteration of bee foraging colour preference. Across bees, colour vision is highly conserved and is essential for efficient pollination services. Therefore, our findings have important implications for ecosystem health and agricultural services world-wide. © 2025

关键词： Pesticide effects

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HYDROGEOCHEMICAL CHARACTER AND GROUNDWATER POTENTIAL IN TERNATE BASIN, NORTH MALUKU, INDONESIA

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Xinan Jiaotong Daxue Xuebao/Journal of Southwest Jiaotong University 2022年第3期57卷 492-503页

作者： Daud, Kadri Pramoedyo, Henny Afandhi, Aminudin Tama, Ishardita P. Doctoral Program in Environmental Sciences Graduate School Brawijaya University Jl. MT Haryono 169 Malang65145 Indonesia Department of Statistic Faculty of Mathematics and Natural Sciences Brawijaya University Jl Veteran Malang 65145 Indonesia Faculty of Agriculture Brawijaya University Malang Indonesia Department of Industrial Engineering Faculty of Engineering Brawijaya University Jl. Veteran Malang Malang65145 Indonesia

Ternate Basin is located a small volcanic island in the archipelago of North Maluku, Indonesia. This island has very limited water resources and prone to seawater intrusion. This study aims to determine and analyze the distribution of hydrogeological interest points, determine patterns and directions of groundwater flow, and analyze hydrogeochemical quality and groundwater facies. Determination of the free aquifer zone was carried out by geoelectric measurements in 37 points, while the interpretation of confined aquifers was carried out in 17 drill log points. The quality of groundwater was analyzed in the study area, 126 samples were collected and analyzed. The piper diagram was adopted to identify groundwater facies. The determination of groundwater basin with a total recharge of 54,155 million m3/year. The saturated zone of groundwater flow reaches 1.237 million m3/day or 451.712 million m3/year. The quality of groundwater laboratory results indicates that the water from the two aquifer sources is suitable as a source of drinking water with moderate permeability and has met the quality standards. There were three groundwater facies in the study sites consisting of calcium magnesium bicarbonate (C4H4-Ca-MgO12), calcium magnesium chloride (CaCl2-MgCl2) and sodium potassium chloride (NaCL-KCL). Bicarbonate facies type in the groundwater basin indicated localized flow systems. This means the groundwater in the study site has a recharge area close to its groundwater source. Meanwhile, chloride facies type in the groundwater basin indicates a long process of flow pattern and allows the groundwater to interact with seawater or magmatic matters. These results can be used for policymakers to determine the appropriate and accurate location for groundwater exploitation for the public purposes. Determination of the location must be carried out by considering the flow, quantity, and quality of groundwater. © 2022 Science Press. All rights reserved.

关键词： Aquifers

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