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2024 IEEE Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2024

作者： Han, Geonhui Kim, Youngdong Kim, Jaeseon Kim, Dongmin Seo, Yoori Lee, Chuljun Choi, Jinmyung Lee, Jinwoo Ahn, Dongho Oh, Sechung Lee, Donghwa Hwang, Hyunsang Department of Material Science and Engineering Pohang37673 Korea Republic of Advanced Process Development Team 2 Samsung Electronics Gyeonggi-do Korea Republic of

ISBN: (纸本)9798350361469

We firstly demonstrate highly scalable interface type RRAM based 3D V-NAND memory with WOx resistivity switching (RS) layer and IGZO selector transistor (Tr). 3D vertical interface type RRAM integrated with IGZO Tr (VB-RRAM), utilizing bypass reading between Tr and RS layer, exhibits low voltage operation ( 107 cycles), and low switching energy consumption (5 fJ). Finally, critical V-NAND issues like read disturbance and interface layer were also evaluated. © 2024 IEEE.

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Charge transfer interfaces across black phosphorus/Co,N Co-doped carbon heterojunction for enhanced electrocatalytic water splitting

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Journal of Materials Science & Technology 2024年第11期178卷 171-178页

作者： Jizhou Jiang Yongjing Wang Jing Wu Hao Wang Arramel Yilun Zou Jing Zou Haitao Wang School of Environmental Ecology and Biological Engineering School of Chemistry and Environmental EngineeringKey Laboratory of Green Chemical Engineering Process of Ministry of EducationEngineering Research Center of Phosphorus Resources Development and Utilization of Ministry of EducationNovel Catalytic Materials of Hubei Engineering Research CenterWuhan Institute of TechnologyWuhan 430205China Key Laboratory of Rare Mineral Ministry of Natural ResourcesGeological Experimental Testing Center of Hubei ProvinceWuhan 430034China Nano Center Indonesia South TangerangBanten 15314Indonesia

The practicality of electrochemical water-splitting technology relies on the development of novel and efficient bifunctional electrocatalysts capable of facilitating both the hydrogen evolution reaction(HER)and oxygen evolution reaction(OER).Black phosphorus(BP)holds tremendous promise for HER and OER electrocatalysis owing to its fully exposed atoms and high carrier ***,the elec-trocatalytic performance of BP is still much lower than the expected theoretical limit,presenting an exciting challenge for further ***,we embed electrochemically exfoliated few-layer BP nanosheets in higher Fermi level(EF)of cobalt,nitrogen co-doped carbons to form a new heterojunction(CoNC-BP),as efficient bifunctional electrocatalysts toward HER and OER for the advancement overall water splitting applications.A directed interfacial electron transfer is realized from CoNC to BP,facilitated by the lowering Fermi level(EF).This interfacial electron transfer plays a crucial role in optimizing the adsorption and desorption of active intermediates,while also introducing an abundance of hypervalent Co *** factors collectively contribute to the remarkable electrocatalytic activities of HER and OER performance,leading to the efficient performance of the developed CoNC-BP heterojunction in water-splitting *** work demonstrates a promising breakthrough that can inspire the design of high-efficiency catalysts.

关键词： Directional charge transfer Black phosphorus Co,N co-doped carbon Heterointerface Electrocatalytic water splitting

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Power Resilience Planning under the Threat of Artificial Intelligence

Power Resilience Planning under the Threat of Artificial Int...

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2024 Portland International Conference on Management of engineering and Technology, PICMET 2024

作者： Corbett, Chip Nguyen, Cuong Hongchai, Dahm M. Thorat, Prajakta Prasad, Pavithra Von Schimmelmann, Sarah Weber, Charles Anderson, Tim Portland State University Engineering and Technology Management Department PortlandOR United States Product Development Department Allbirds PortlandOR United States Process Engineering Department Intel PortlandOR United States

ISBN: (纸本)9781890843458

The earth is an unstable planet. Change is constant and frequently chaotic. It is very important to plan carefully to manage changes that can be anticipated now, and to cover potential issues that might not yet have been discovered. The dawn of artificial intelligence (AI) presents a host of new concerns and opportunities. The criteria for evaluation are diverse and complex. Cybersecurity is absolutely essential, yet advances in technology have created an internet of things (IoT) where threat vectors might gain access to critical command and control elements through trillions of connected IoT devices. Whereas elegant zero trust cybersecurity models can be constructed and deployed, the vast majority of successful attacks involve a human element. Disruptive change makes decisions on any future course of action very difficult to evaluate. Distributed energy resources (DERs) can be designed to benefit individuals and improve the resilience of the power grid. We propose to direct the deployment of limited resources in an efficient fashion by evaluating the multi-discipline criteria using a hierarchical decision model (HDM), evaluated by human subject matter experts (SMEs) and generative artificial intelligence (GenAI). © 2024 PICMET.

关键词： Artificial intelligence

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Parameters that Influence Recycling of Barrier Coated Paper

Parameters that Influence Recycling of Barrier Coated Paper

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TAPPICon 2024

作者： Najd Mazhar, Aysan Walker, Colleen Bousfield, Douglas Wheeler, Clayton Chemical and Biomedical Engineering Department University of Maine OronoME04469 United States Process Development Center University of Maine OronoME04469 United States

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MXenes/CNTs-based hybrids:Fabrications,mechanisms,and modification strategies for energy and environmental applications

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Nano Research 2024年第5期17卷 3429-3454页

作者： Jizhou Jiang Fangyi Li Lei Ding Chengxun Zhang Arramel Xin Li School of Environmental Ecology and Biological Engineering School of Chemistry and Environmental EngineeringKey Laboratory of Green Chemical Engineering Process of Ministry of EducationEngineering Research Center of Phosphorus Resources Development and Utilization of Ministry of EducationNovel Catalytic Materials of Hubei Engineering Research CenterWuhan Institute of TechnologyWuhan 430205China Nano Center Indonesia Jl.PUSPIPTEK Tangerang SelatanBanten 15314Indonesia Institute of Biomass Engineering Key Laboratory of Energy Plants Resource and UtilizationMinistry of Agriculture and Rural AffairsSouth China Agricultural UniversityGuangzhou 510642China

Emerging two-dimensional(2D)layered metal carbide and nitride materials,commonly termed MXenes,are increasingly recognized for their applications across diverse fields such as energy,environment,and *** the past few years,MXenes/carbon nanotubes(CNTs)-based hybrids have attracted extensive attention as an important catalyst in energy and environmental fields,due to their superior multifunctions and mechanical *** review aims to address the fabrication strategies,the identification of the enhancement mechanisms,and recent progress regarding the design and modification of MXenes/CNTs-based hybrids.A myriad of fabrication techniques have been systematically summarized,including mechanical mixing,spray drying,three-dimensional(3D)printing,self-assembly/in-situ growth,freeze drying,templating,hydrothermal methods,chemical vapor deposition(CVD),and ***,the identification of the enhancement mechanisms was thoroughly discussed from the two dimensions of theoretical simulations and in-situ ***,the recent advancements in profound applications of MXenes/CNTs-based hybrids have also been carefully revealed,including energy storage devices,sensors,water purification systems,and microwave *** also underscore anticipated challenges related to their fabrication,structure,underlying mechanisms,modification approaches,and emergent ***,this review offers insights into prospective directions and the future trajectory for these promising *** is expected that this review can inspire new ideas or provide new research methods for future studies.

关键词： MXenes/carbon nanotubes(CNTs)-based hybrids fabrication applications modification strategies

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Measurement of Oil Film Thickness Distribution in Roll Bite during Cold Rolling Using Quantum Dots

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ISIJ International 2025年第1期65卷 50-61页

作者： Shimura, Masahiro Kasai, Daisuke Otsuka, Takayuki Yamashita, Naoki Hirayama, Tomoko Research & Development Process Research Laboratories Nippon Steel Corporation 20-1 Shintomi Futtu-shi Chiba293-8511 Japan Department of Mechanical Engineering and Physics Kyoto Institute of Technology Matsugasakigoshokaidocho Sakyo-ku Kyoto606-8585 Japan Department of Mechanical Engineering and Science Graduate School of Engineering Kyoto University Katsura Nishikyo-ku Kyoto615-8510 Japan

Lubrication is critical to achieve stable rolling during the cold rolling of flat steel products. However, the oil film thickness distribution in the roll bite and its effect on the friction between the work roll and strip has not yet been clarified. This study aims to elucidate the relationship between the oil film thickness distribution and friction by focusing on the rolling oil viscosity and steel grades because they significantly affect the friction between the work roll and the strip. Rolling oil was prepared with quantum dots (QDs) as the fluorescent additive and used in rolling experiments to determine its distribution. Furthermore, cold rolling experiments were conducted using two types of oils with different viscosities and three steel grades: low-carbon steel (LCS), high-strength steel (HSS), and advanced high-strength steel (AHSS) with tensile strengths of 270, 590, and 1 180 MPa, respectively. Subsequently, the oil film thickness distribution on the steel strip surface was visualized by fluorescence microscopy using QDs. The idea that the higher the tensile strength of the steel or the higher the oil viscosity, the wider the rolling oil distribution on the strip surface was demonstrated. The numerical analyses revealed that the rolling oil distribution on the steel sheet surface was wider for AHSS and HSS than that for LCS. The high surface pressure between the roll and the steel plate may have increased the oil leaching area by increasing the oil viscosity. These findings demonstrate that rolling oil permeation from oil pits reduces the friction between the work rolls and the strip. © 2025 The Iron and Steel Institute of Japan.

关键词： Fluorescence microscopy

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Application of response surface methodology with central composite design to evaluate the extraction of U(VI) into ionic liquids

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Materials Today: Proceedings 2022年 57卷 1738-1744页

作者： Kumar, Pradeep Vincent, Tessy Khanna, Ashok Department of Chemical Engineering IET Lucknow 226021 India Process Development Division Nuclear Recycle Group BARC Mumbai India Department of Chemical Engineering IIT Kanpur 208016 India

Application of response surface methodology with central composite design to evaluate Uranium (VI) extraction from acidic medium by tri-n-butyl phosphate (TBP) solution into Ionic liquids has been studied. At low acidic solution i.e. at 0.01 M HNO3 the enhancement in distribution ratio DU in [EMIM][TF2N], [BMIM][TF2N], [Trihexyl tetradecyl phosphonium][TF2N] compared to dodecane is ∼ 347, 260 and 82 times and to TBP it is ∼ 300, 225 and 70 times respectively. Percent extraction (% E) of uranium into [EMIM][TF2N] is found to be highest 93% compared to other ionic liquids. The RSM with two-level-two-full factorial CCD was employed to predict the statistical model which relates the TBP composition and pH to the DU with (R2 = 98.6%). The model equation is tested for its suitability by analysis of variance (ANOVA) and it is found to be in good agreement with the experimental data. © 2021

关键词： Ionic liquids

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Transducer misplacement compensation for in-lab-made 3D photoacoustic tomography systems using Nature-inspired algorithms

Transducer misplacement compensation for in-lab-made 3D phot...

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Photons Plus Ultrasound: Imaging and Sensing 2023

作者： Rahaman, Jarjish Prakash, Ravi Ranjbaran, Mohsen Manwar, Rayyan Avanaki, Kamran CSIR- National Chemical Laboratory Chemical Engineering & Process Development Division Pune India University of Illinois-Chicago Biomedical Engineering Department ChicagoIL United States

ISBN: (纸本)9781510658639

Three-dimensional (3D) photoacoustic tomography is a method of choice for imaging round organs such as brain and breast. Many research groups have used a fully populated hemispherical transducer array with 256, 512, 1028, or 2048 elements and used that for 3D imaging. These transducer arrays are expensive and require a sophisticated data acquisition unit. Other groups have used much smaller number of transducers with a rotating mechanism which eventually filled out the entire hemisphere. We have built a 3D hemispherical array with 28 transducers which are placed on a 3D printed dome-like unit. The location of transducers however may be off-placed by a few millimeters (due to human error and errors in 3D printing). This may be to defocus the reconstructed image if the acceptable positions of transducers are not selected. In this work, we developed a compensation algorithm for misplacement of these transducers using Cuckoo search (CS) algorithm. The CS algorithm finds the optimum location for the transducers using levy flight which relies on levy distribution. The optimum location of each of these transducers is found within -4 mm to 4 mm of their locations. Universal back projection algorithm was used for image reconstruction and the sharpness of 3D image was used as the cost function;additionally, two more objective functions, the Brenner gradient, and the Tenenbaum gradient was investigated. © 2023 SPIE.

关键词： Cost functions

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A review of updated S-scheme heterojunction photocatalysts

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Journal of Materials Science & Technology 2024年第10期177卷 142-180页

作者： Fangyi Li Guihua Zhu Jizhou Jiang Lang Yang Fengxia Deng Arramel Xin Li School of Environmental Ecology and Biological Engineering Key Laboratory of Green Chemical Engineering Process of Ministry of EducationEngineering Research Center of Phosphorus Resources Development and Utilization of Ministry of EducationNovel Catalytic Materials of Hubei Engineering Research CenterWuhan Institute of TechnologyWuhan 430205China National Engineering and Technology Research Center for Development&Utilization of Phosphate Resources Kunming 650600China State Key Laboratory of Urban Water Resource and Environment School of EnvironmentHarbin Institute of TechnologyHarbin 150090China Nano Center Indonesia Jalan Raya PUSPIPTEKSouth TangerangBanten 15314Indonesia Institute of Biomass Engineering Key Laboratory of Energy Plants Resource and UtilizationMinistry of Agriculture and Rural AffairsSouth China Agricultural UniversityGuangzhou 510642China

Photocatalysis is a green and environmentally-friendly process that utilizes the ubiquitous intermittent *** date,an emerging S-scheme heterojunction across the intimately coupled heterojunction materials is proposed to surpass the efficiency of conventional Ⅱ-type and Z-type ***-more,S-scheme heterojunction photocatalysts with greatly improved photocatalytic performance have gained significant attention due to their fast charge carriers separation along with strong redox ability and stability,since its proposal in ***,a timely and comprehensive review is highly desired to cover the state-of-the-art *** by this idea,the review conveys the recent progress and provides new insights into further *** the conventional method,in this review,we im-plement a quantification model to outline current trends in S-scheme heterojunctions research as well as their *** overview begins with the fundamentals of four basic photocatalytic mechanisms,followed by its design ***,diverse characterization techniques used in the S-scheme heterojunctions are systematically summarized along with the modification strategies to boost photocat-alytic ***,the internal reaction mechanism and emerging applications have been reviewed,including water conversion,CO_(2) remediation,wastewater treatment,H_(2)0_(2) production,N_(2) fix-ation,*** sum up the review,we present several current challenges and future prospects of the S-scheme heterojunctions photocatalysts,aiming to provide indispensable platforms for the future smart design of photocatalysts.

关键词： S-scheme heterojunctions Photocatalysts Modification strategies Charge separation mechanism

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Biomordant assisted natural dyeing of cellulosic fibre: a greener approach

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Materials Research Innovations 2025年第1期29卷 27-34页

作者： Chowdhury, Tanvir Ahmed Khandaker, Jahirul Islam Gafur, Mohammad Abdul Repon, Md. Reazuddin Islam, Md. Kamrul Hossain, Alamgir Mollick, Swaraz Department of Physics Jahangirnagar University Dhaka Bangladesh Department of Textile Engineering Daffodil International University Dhaka Bangladesh Pilot Plant & Process Development Centre Bangladesh Council of Scientific and Industrial Research Dhaka Bangladesh Department of Bioproducts and Biosystems School of Chemical Engineering Aalto University Espoo Finland 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

Natural dyes serve as a benign alternative to their synthetic counterparts, offering a sustainable option that directly mitigates the release of toxic chemicals. In this study, cotton fabrics were dyed with neem leaf extract in acidic, neutral and alkaline condition where samples were mordanted with lemon juice. The findings revealed a direct correlation between colour strength (K/S) and pH levels, and optimal fastness properties were achieved under alkaline pH conditions when a mordant was employed. The Energy Dispersive X-ray (EDX) ensured the elemental composition of lemon juice assisted dyed fabric which indicates the effective binding of cotton fabric with neem leaves extracted dye. The Fourier Transform Infrared (FTIR) Spectroscopy analysis also confirmed the interaction of cotton fabric with dye particles. The results indicate that cotton fabric can be successfully dyed with neem leaf extract and lemon juice as the biomordant, presenting an eco-friendly and sustainable approach to dyeing practices. © 2024 Informa UK Limited, trading as Taylor & Francis Group.

关键词： Cotton fabrics

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