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Taste Augmentation of Wine by Artificial Climate room: Influence of Temperature and Humidity on Taste Evaluation

Augmented Human research 2025年第1期10卷 1-16页

作者： Igarashi, Toshiharu Ochiai, Yoichi Simulation of Complex Systems Lab Department of Human and Engineered Environmental Studies Graduate School of Frontier Sciences The University of Tokyo Tokyo Japan AI-UX Design Research Institution Advanced Institute of Industrial Technology Shinagawa Japan R&D Center for Digital Nature University of Tsukuba Tsukuba Japan Pixie Dust Technologies Inc. Chuo-ku Japan

This study investigates the effects of temperature and humidity on the subjective characteristics of wine through evaluations in two distinct environments: an artificial climate chamber and a conference room. Two wines, wine 1(CrOIX dE BEAUCAILLOU 2011) and wine 2(BLAGNY 1Er CrU LA PIECE SOUS LE BOIS 2014), were analyzed. Significant differences in color intensity, aging degree, and body were observed for wine 1 in the artificial climate room, and in flavor intensity in the conference room. For wine 2, significant differences were detected in flavor intensity and aging degree in the artificial climate room. Additionally, the composition changes of the wines concerning temperature were examined, revealing correlations between specific acids and temperature changes. These findings indicate that wine taste can be optimized by adjusting environmental conditions based on wine type and personal preferences, suggesting the potential for climate-controlled environments in enhancing wine and food experiences in restaurants.

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Bc²FL: double-Layer Blockchain-driven Federated Learning Framework for Agricultural IoT

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IEEE Internet of Things Journal 2024年第4期12卷 4362-4374页

作者： Qingyang ding Xiaofei Yue Qinnan Zhang Zehui Xiong Jinping Chang Hongwei Zheng School of Management Beijing Union University Beijing China School of Computer Science and Technology Beijing Institute of Technology Beijing China Institute of Artificial Intelligence Beijing Advanced Innovation Center for Future Blockchain and Privacy Computing Beihang University Beijing China Information Systems Technology and Design Pillar Singapore University of Technology and Design Tampines Singapore Blockchain and Privacy Computing Technology R&D Department Beijing Academy of Blockchain and Edge Computing Beijing China

With the flourishing of the Agricultural Internet of Things (AIoT), analyzing large-volume sensor data has become a regular requirement for agricultural decision-making. Federated learning (FL), which facilitates scattered AIoT devices to train models collaboratively, has gained significant attention. However, traditional FL poses challenges in AIoT scenarios, such as wide geo-distribution, heterogeneous data distribution, and high-device risks. Existing works tend to be one-sided and remain unclear on how to tackle these issues thoroughly in AIoT. To fill the gap, we present Bc2FL, a double-layer blockchain-based FL framework, which enhances both learning efficiency and security for AIoT. The double-layer blockchain, coupled with a two-stage consensus algorithm, drives the hierarchical FL process to enable efficient and reliable agricultural knowledge-sharing. In addition, Bc2FL adopts an adaptive model aggregation algorithm to dynamically tune noise levels based on the model quality, further improving the learning security and model credibility. Finally, the extensive experimental results demonstrate that Bc2FL not only improves the model accuracy by up to 21.17% compared with the state-of-the-art baselines, but also enhances the privacy protection within an additional error of only 2.1%.

关键词： Blockchains Internet of Things Privacy Computational modeling Federated learning data models Biological system modeling Adaptation models Accuracy Servers

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deposition Quality and Efficiency Improvement Method for Additive Manufacturing of Ti–6al–4v Using Gas Metal Arc with Cmt

SSRN

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SSrN 2022年

作者： Lee, Tae Hyun Kang, Minjung Oh, Je Hoon Kam, dong Hyuck Advanced Joining & Additive Manufacturing R&D Department Korea Institute of Industrial Technology Incheon Korea Republic of Department of Mechanical Design Engineering Hanyang University Seoul04763 Korea Republic of

In this study, we propose a method to improve the bead quality and thereby increase the wire-feed deposition efficiency of Ti alloys using the cold metal transfer–gas metal arc (CMT–GMA) process. Generally, the arc is affected by the cathode spot concentration due to thermionic emission of Ti, resulting in a poor deposition quality (low wettability, irregular bead shape, and spatter) when Ar shielding gas is used in the GMA deposition of Ti alloys. The use of He shielding gas can improve the Ti deposition quality because the effective arc energy transfer realized by suppressing the adverse effect of cathode spot on the molten pool increases the wettability. To understand the mechanism of the quality improvement with He shielding gas, a high-speed camera analysis was conducted in this study. The cathode spot was dispersed by the high ionization energy of He gas, while ensuring that it was not strong enough for arc disturbance. The He shielding gas could improve the Ti deposition quality owing to the arc stability and narrow tip and broad tail;thus, the bead shape improves the sound deposition quality. Compared with the Ar shielding gas, the wetting angle of the bead was increased by 43.9°, and the deposition efficiency was increased by 40.1%. Increasing the detachment current increased the deposition rate, attributed to the electromagnetic force-induced separation in the molten bridge and increase in droplet repetition. Under a detachment current of 290 A and when using He shielding gas, the deposition rate was 3.7 kg/h, which was 20.5% higher than that under a detachment current of 50 A and when using Ar shielding gas. Through multilayer deposition, the deposition efficiency in single-bead multilayer deposition (1×5) was reduced to 30.1% under Ar shielding gas and to 12.5% under He shielding gas. In the case of multibead multilayer deposition (5×5), the Ar shielding gas induced cavities in the deposition structure. This result confirmed that the application of He sh

关键词： Argon

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Fermi-Surface Origin of Skyrmion Lattices in Centrosymmetric rare-Earth Intermetallics

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Physical review Letters 2022年第15期128卷 157206-157206页

作者： Juba Bouaziz Eduardo Mendive-Tapia Stefan Blügel Julie B. Staunton Peter Grünberg Institut and Institute for Advanced Simulation Forschungszentrum Jülich and JARA D-52425 Jülich Germany Department of Physics University of Warwick Coventry CV4 7AL United Kingdom Department of Computational Materials Design Max-Planck-Institut für Eisenforschung 40237 Düsseldorf Germany

We show from first principles that barrel-shaped structures within the Fermi surface of the centrosymmetric intermetallic compounds Gdru2Si2 and Gd2PdSi3 give rise to Fermi surface nesting, which determines the strength and sign of quasi-two-dimensional ruderman-Kittel-Kasuya-Yosida pairwise exchange interactions between the Gd moments. This is the principal mechanism leading to their helical single-q spin-spiral ground states, providing transition temperatures and magnetic periods in good agreement with experiment. Using atomistic spin-dynamic simulations, we draw a direct line between the subtleties of the three-dimensional Fermi surface topology and the stabilization of a square skyrmion lattice in Gdru2Si2 at applied magnetic fields as observed in experiment.

关键词： rKKY interaction Skyrmions Spin texture

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Ab initio calculation of the magnetic Gibbs free energy of materials using magnetically constrained supercells

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Physical review B 2022年第6期105卷 064425-064425页

作者： Eduardo Mendive-Tapia Jörg Neugebauer Tilmann Hickel Department of Computational Materials Design Max-Planck-Institut für Eisenforschung 40237 Düsseldorf Germany Peter Grünberg Institut and Institute for Advanced Simulation Forschungszentrum Jülich and JARA D-52425 Jülich Germany BAM Federal Institute for Materials Research and Testing 12489 Berlin Germany

We present a first-principles approach for the computation of the magnetic Gibbs free energy of materials using magnetically constrained supercell calculations. Our approach is based on an adiabatic approximation of slowly varying local moment orientations, the so-called finite-temperature disordered local moment picture. It describes magnetic phase transitions and how electronic and/or magnetostructural mechanisms generate a discontinuous (first-order) character. We demonstrate that the statistical mechanics of the local moment orientations can be described by an affordable number of supercell calculations containing noncollinear magnetic configurations. The applicability of our approach is illustrated by firstly studying the ferromagnetic state in bcc Fe. We then investigate the temperature-dependent properties of a triangular antiferromagnetic state stabilizing in two antiperovskite systems Mn3AN (A=Ga, Ni). Our calculations provide the negative thermal expansion of these materials as well as the ab initio origin of the discontinuous character of the phase transitions, electronic and/or magnetostructural, in good agreement with experiment.

关键词： Antiferromagnetism Frustrated magnetism Magnetic interactions Magnetic order Magnetic phase transitions Magnetism Magnetoelastic effect Thermodynamics Magnetic refrigeration Ab initio calculations density functional calculations Mean field theory Methods in magnetism

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Functionally graded structure of a nitride-strengthened Mg_(2)Si-based hybrid composite

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Journal of Magnesium and Alloys 2024年第3期12卷 1239-1256页

作者： Jeongho Yang Woongbeom Heogh Hogi Ju Sukhyun Kang Tae-Sik Jang Hyun-do Jung Mohammad Jahazi Seung Chul Han Seong Je Park Hyoung Seop Kim Susmita Bose Amit Bandyopadhyay Martin Byung-Guk Jun Young Won Kim dae-kyeom Kim rigoberto CAdvincula Clodualdo Aranas Jr Sang Hoon Kim School of Mechanical Engineering Pusan National UniversityBusan 46241Republic of Korea Department of Mechanical Design Engineering Hanyang UniversitySeoul 04763Republic of Korea Process Research 3 Team LG Display Co.Ltd.PajuGyeonggi-do 10845Republic of Korea Department of Materials Science and Engineering Chosun UniversityGwangju 61452Republic of Korea Institute of Well-Aging Medicare&Chosun University LAMP Center Chosun UniversityGwangju 61452Republic of Korea Division of Materials Science and Engineering Hanyang UniversitySeoul 04763Republic of Korea Department of Mechanical Engineering École de Technologie SupérieureMontrealQuebec H3C 1K3Canada Material&Component Convergence R&D Center Korea Construction Equipment Technology InstituteGunsanJeollabuk-do 54002Republic of Korea School of Mechanical and Aerospace Engineering Nanyang Technological UniversitySingapore 639798Singapore Graduate Institute of Ferrous&Eco Materials Technology Pohang University of Science and TechnologyPohangGyeongsangbuk-do 37673Republic of Korea Advanced Institute for Materials Research Tohoku UniversitySendai 980-8577Japan Institute for Convergence Research and Education in Advanced Technology Yonsei UniversitySeoul 03722Republic of Korea School of Mechanical and Materials Engineering Washington State UniversityPullmanWashington 99164USA School of Mechanical Engineering Purdue UniversityWest LafayetteIndiana 47907USA Research Institute of Advanced Manufacturing Technology Korea Institute of Industrial TechnologyIncheon 21999Republic of Korea Department of Macromolecular Science and Engineering Case Western Reserve UniversityClevelandOhio 44106USA Department of Chemical and Biomolecular Engineering and Joint Institute for Advanced Materials University of TennesseeKnoxvilleTennessee 37996USA Center for Nanophase Materials and Sciences Oak Ridge National LaboratoryOak RidgeTennessee 37830USA Department of Mechanical Engineering University of New BrunswickFrederictonNew Brunswick E3B 5A3Cana

The ex-situ incorporation of the secondary SiC reinforcement,along with the in-situ incorporation of the tertiary and quaternary Mg_(3)N_(2) and Si_(3)N_(4) phases,in the primary matrix of Mg_(2)Si is employed in order to provide ultimate wear resistance based on the laser-irradiation-induced inclusion of N_(2) gas during laser powder bed *** is substantialized based on both the thermal diffusion-and chemical reactionbased metallurgy of the Mg_(2)Si–SiC/nitride hybrid *** study also proposes a functional platform for systematically modulating a functionally graded structure and modeling build-direction-dependent architectonics during additive *** strategy enables the development of a compositional gradient from the center to the edge of each melt pool of the Mg_(2)Si–SiC/nitride hybrid ***,the coefficient of friction of the hybrid composite exhibits a 309.3%decrease to–1.67 compared to–0.54 for the conventional nonreinforced Mg_(2)Si structure,while the tensile strength exhibits a 171.3%increase to 831.5 MPa compared to 485.3 MPa for the conventional *** outstanding mechanical behavior is due to the(1)the complementary and synergistic reinforcement effects of the SiC and nitride compounds,each of which possesses an intrinsically high hardness,and(2)the strong adhesion of these compounds to the Mg_(2)Si matrix despite their small sizes and low concentrations.

关键词： Laser powder bed fusion Mg_(2)Si-SiC/nitride hybrid composite Both the thermal diffusion-and chemical reaction-based metallurgy Functionally graded structure Compositional gradient Wear resistance.

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Mutual Self‑regulation of d‑Electrons of Single Atoms and Adjacent Nanoparticles for Bifunctional Oxygen Electrocatalysis and rechargeable Zinc‑Air Batteries

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Nano-Micro Letters 2023年第4期15卷 40-57页

作者： Sundaram Chandrasekaran rong Hu Lei Yao Lijun Sui Yongping Liu Amor Abdelkader Yongliang Li Xiangzhong ren Libo deng College of Chemistry and Environmental Engineering Shenzhen UniversityShenzhen 518060People’s Republic of China College of Chemistry and Bioengineering Guilin University of TechnologyGuilin 541004People’s Republic of China Shenzhen Key Laboratory of Special Functional Materials Shenzhen Engineering Laboratory for Advanced Technology of CeramicsCollege of Materials Science and EngineeringGuangdong Research Center for Interfacial Engineering of Functional MaterialsShenzhen UniversityShenzhen 518060People’s Republic of China Shanghai Key Laboratory for R&D and Application of Metallic Functional Materials Institute of New Energy for VehiclesSchool of Materials Science and EngineeringTongji UniversityShanghai 201804People’s Republic of China Department of Design and Engineering Faculty of Science&TechnologyBournemouth UniversityPoole BH125BBDorsetUK

rechargeable zinc-air batteries(ZABs)are a promising energy conversion device,which rely critically on electrocatalysts to accelerate their rate-determining reactions such as oxygen reduction(Orr)and oxygen evolution reactions(OEr).Herein,we fabricate a range of bifunctional M-N-C(metal-nitrogen-carbon)catalysts containing M-Nx coordination sites and M/MxC nanoparticles(M=Co,Fe,and Cu)using a new class ofγ-cyclodextrin(Cd)based metal-organic framework as the *** the two types of active sites interacting with each other in the catalysts,the obtained Fe@C-FeNC and Co@C-CoNC display superior alkaline Orr activity in terms of low half-wave(E1/2)potential(~0.917 and 0.906 V,respectively),which are higher than Cu@C-CuNC(~0.829 V)and the commercial Pt/C(~0.861 V).As a bifunctional electrocatalyst,the Co@C-CoNC exhibits the best performance,showing a bifunctional Orr/OEr overpotential(ΔE)of~0.732 V,which is much lower than that of Fe@C-FeNC(~0.831 V)and Cu@C-CuNC(~1.411 V),as well as most of the robust bifunctional electrocatalysts reported to *** X-ray absorption spectroscopy and density functional theory simulations reveal that the strong electronic correlation between metallic Co nanoparticles and the atomic Co-N4 sites in the Co@C-CoNC catalyst can increase the d-electron density near the Fermi level and thus effectively optimize the adsorption/desorption of intermediates in Orr/OEr,resulting in an enhanced bifunctional electrocatalytic *** Co@C-CoNC-based rechargeable ZAB exhibited a maximum power density of 162.80 mW cm^(−2) at 270.30 mA cm^(−2),higher than the combination of commercial Pt/C+ruO2(~158.90 mW cm^(−2) at 265.80 mA cm^(−2))*** the galvanostatic discharge at 10 mA cm^(−2),the ZAB delivered an almost stable discharge voltage of 1.2 V for~140 h,signifying the virtue of excellent bifunctional Orr/OEr electrocatalytic activity.

关键词： Cyclodextrin Cd-MOF Single-atom catalyst Orr/OEr Zinc-air battery

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Highly C-Axis-Oriented Apatite-Type Lanthanum Silicate Thin Films Fabricated by Magnetron Sputtering Under Bias

SSRN

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SSrN 2024年

作者： Hidaka, Shigekazu Takagi, Kenji Yamamoto, Takahisa Department of Materials Design Innovation Engineering Nagoya University Furo-cho Chikusa-ku Aichi Nagoya464-8603 Japan Advanced Research & Innovation Center DENSO CORP. 500-1 Minamiyama Komenoki-cho Aichi Nisshin470-0111 Japan Advanced Measurement R&D Division SOKEN INC. 500-20 Minamiyama Komenoki-cho Aichi Nisshin470-0111 Japan

The development of apatite-type lanthanum silicate (LSO) thin films with enhanced c-axis orientation has received attention because highly c-axis oriented LSO is an attractive electrolyte for lowering the operating temperature of solid oxide cells. In this study, the effect of thin-film conditions in magnetron sputtering on the c-axis orientation of LSO thin films after crystallization were investigated. X-ray diffraction and X-ray reflectivity measurements revealed that the c-axis orientation of LSO thin films after crystallization is correlated with the density of the amorphous thin films deposited by magnetron sputtering. Bias application during magnetron sputtering effectively increased the c-axis orientation of crystallized LSO thin films, which showed extremely high c-axis orientation (Lotgering factor of 0.99). This thin film consisted of columnar grains, most of which were c-axis oriented, as confirmed by direct observation using scanning transmission electron microscopy. © 2024, The Authors. All rights reserved.

关键词： Magnetron sputtering

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Particle-based investigation of excipients stability: the effect of storage conditions on moisture content and swelling †

RSC Pharmaceutics

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rSC Pharmaceutics 2025年第2期2卷 369-386页

作者： Isra Ibrahim Mark Carroll Anas Almudahka James Mann Alexander Abbott Fredrik Winge Adrian davis Bart Hens Ibrahim Khadra daniel Markl Centre for Continuous Manufacturing and Advanced Crystallisation (CMAC) University of Strathclyde Glasgow UK daniel.markl@strath.ac.uk Strathclyde Institute of Pharmacy & Biomedical Sciences University of Strathclyde Glasgow UK Department of Pharmaceutics and Pharmaceutical Technology Yarmouk University Irbid Jordan Department of Pharmaceutics College of Pharmacy Kuwait University Kuwait Oral Product Development Pharmaceutical Technology & Development Operations AstraZeneca Macclesfield UK Oral Product Development Pharmaceutical Technology & Development Operations AstraZeneca Gothenburg Sweden Analytical R&D Pharmaceutical Sciences Small Molecules Pfizer R&D UK Ltd Sandwich UK Drug Product Design Pfizer Zaventem Belgium

Moisture sensitivity poses a challenge in formulating oral dosage forms, particularly when considering disintegrants’ swelling due to prior moisture exposure, impacting performance and physical stability. This study utilises dynamic vapour sorption to simulate real-world storage scenarios, investigating the equilibrium moisture content and dynamics of eight commonly used excipients in oral solid dosage forms. A model was developed to determine the kinetic rate constant of moisture sorption and desorption for different storage conditions. dynamic vapour sorption tests revealed that excipients with higher moisture-binding capacities showed slower equilibration to the target relative humidity (rH). Elevated temperatures accelerated the moisture sorption/desorption process for all excipients, reducing the equilibrated moisture content for most, except mannitol and lactose. Particle imaging over a 14-day accelerated storage period quantified swelling, indicating approximately 6% increase in particle diameter for croscarmellose sodium (CCS) and sodium starch glycolate (SSG), and a lesser 2.7% for microcrystalline cellulose (MCC), predominantly caused by the humidity. All excipients reached their swelling peak within the first day of storage, with permanent particle size enlargement for CCS and SSG, whereas MCC displayed a partial reversibility post-storage. Enhancing our understanding of excipients’ stability and interaction with moisture and the resulting particle swelling contributes to the rational design of oral solid dosage formulations and promotes a better understanding of their long-term physical stability.

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Carbon Nanotube Yarn with Small Outer diameter to Maximize the Electrochemical Performance of Artificial Muscles

SSRN

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SSrN 2023年

作者： Park, Chae-Lin Goh, Byeonghwa Kim, Eun Sung Choi, Joonmyung Kim, Shi Hyeong Department of Advanced Textile R&D Korea Institute of Industrial Technology Ansan15588 Korea Republic of HYU-KITECH Joint Department Hanyang University Seoul04763 Korea Republic of Department of Mechanical Design Engineering Hanyang University Seoul04763 Korea Republic of Department of Mechanical Engineering BK21 FOUR ERICA-ACE Center Hanyang University Ansan15588 Korea Republic of R&D Center A-Tech System Co. Incheon21312 Korea Republic of

Electrochemically powered carbon nanotube (CNT) artificial muscles have garnered significant attention owing to their chemical stability, low operating voltage, and impressive actuation performance. Notably, twist-based CNT artificial muscles have demonstrated superior actuation performance by controlling macroscopic structural factors such as the diameter, spring index, bias angle, and structural homogeneity of the yarn. However, the microscopic design of CNTs is yet to be reported, although CNTs comprising CNT yarn muscles are key determinants of performance. Here, we first establish a correlation between the diameter of CNTs and the actuation performance of artificial muscles. The structural reason for the higher deformability is elucidated employing molecular dynamics simulations. The obtained computational simulation results were consistent with the experimentally fabricated yarn of small-diameter CNTs, which exhibited higher actuation performance. Our findings provide a fundamental design range of CNT diameters that can significantly enhance the performance of electrochemically powered artificial muscles. © 2023, The Authors. All rights reserved.

关键词： Carbon nanotubes

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