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Investigations on Spintronic RFeO3 Crystals Grown by Optical Floating Zone Technique

International Journal of the Society of Material Engineering for Resources 2022年第2期25卷 179-182页

作者： Babu, P. Ramesh Kalainathan, S. Yoshimura, Satoru Department of Electronics and Communication Systems Sri Krishna Arts and Science College Tamil Nadu Coimbatore India Centre for Nano technology Research VIT University Tamil Nadu Vellore India Research Center of Advanced Materials for Breakthrough Technology Graduate School of Engineering Science Akita University Akita Japan

Magnetic materials are in great demand for magnetic devices such as memory, sensing, and communication applications. Magnetic crystals are physically important to know their intrinsic magnetic properties. Magnetic crystals are also technologically important and their creation has aided crystal growth signifi cantly. Rareearth orthoferrites material (RFeO3) is one of the major components used in manufacturing sophisticated gadgets. This study focuses on the growth and physical properties of the optically generated RFeO3 (R = Y, Gd and Sm) single crystals. The fl oating zone method generates single crystals of 3-20 mm/h in the optical zone. The purity of the grown materials was confi rmed from the Powder X-Ray Diff raction (PXRD) analysis. The addition of Gd to YFeO3 increases the lattice parameters of the material. Magnetic properties of the grown crystal were studied between 20-700 K. At high temperature, two anomalous eff ects were observed, one at (TSR = 480 K) due to spin reorientation and the other is antiferromagnetic (AFM) to paramagnetic transitions at (TN = 670 K). Bloch parameter was also calculated. Microhardness value decreases nonlinearly. When the applied load is greater than 1.96 N, there is a transition from palmqvist to median crack due to the plastic deformation of the crystal. Controllable magnetic and mechanical characteristics will help to enhance performance of magnetic devices. © 2022 Soc. Mater. Eng. Resour. Japan.

关键词： Magnetic properties

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Femtosecond laser pulses inscribed EFBG and its sensing characteristics 3

Femtosecond laser pulses inscribed EFBG and its sensing char...

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3rd Optics Frontier Conference, OFS 2023

作者： Liu, Xinyi Jiang, Peng Wang, Jialu Xu, Qiang Yang, Tingting Fan, Xinyi College of Physics and Optoelectronic Technology Baoji University of Arts and Sciences Baoji721016 China College of Electronic and Electrical Engineering Baoji University of Arts and Sciences Baoji721016 China Baoji Key Laboratory of Micro-Nano Optoelectronics and Terahertz Technology Baoji721016 China Engineering Technology Research Center for Ultrafast Optics and Advanced Material of Baoji Baoji721016 China

ISBN: (纸本)9781510666450

In this paper, we presented the inscription and sensing characteristics of eccentric fiber Bragg gratings (EFBGs) through femtosecond laser. This kind of fiber grating is caused by localized refractive index modulation that deviates from the center of the fiber core. EFBGs were prepared in SMF-28 single-mode fiber by 800nm femtosecond laser point-by-point writing method. The temperature and refractive index sensing properties of the prepared EFBG were investigated. The experimental results show that both the Bragg wavelength and cladding mode resonance wavelength of EFBG increase linearly with temperature and show extremely high-temperature robustness. The temperature sensitivity of Bragg resonance is 14.4 pm/℃. As the SRI increases, the Bragg peak remains unchanged and the cutoff wavelength of EFBG cladding mode resonance red-shifts with a sensitivity of 649.29 nm/RIU. © 2023 SPIE.

关键词： Femtosecond lasers

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Preparation of epoxy resin/rare earth doped aluminate nanocomposite toward photoluminescent and superhydrophobic transparent woods

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Journal of Rare Earths 2023年第3期41卷 397-405,I0003页

作者： Mehrez E.El-Naggar Sami Ullah S.Wageh M.A.Abu-Saied Tawfik A.Khattab Dalal Alhashmialameer Manal Abou Taleb E.A.Matter Institute of Textile Research and Technology National Research CenterDokkiCairo16221Egypt Research Center for Advanced Materials Science(RCAMS) King Khalid UniversityP.O.Box 9004Abha61413Saudi Arabia Department of Chemistry College of ScienceKing Khalid UniversityP.O.Box 9004Abha61413Saudi Arabia Department of Physics Faculty of ScienceKing Abdulaziz UniversityJeddah21589Saudi Arabia K.A.CARE Energy Research and Innovation Center King Abdulaziz UniversityJeddah21589Saudi Arabia Polymeric Materials Research Department Advanced Technology and New Materials Research InstituteCity of Scientific Research and Technological Applications(SRTACITY)New Borg El-Arab CityAlexandria21934Saudi Arabia Department of Chemistry College of ScienceTaif UniversityTaif21944Saudi Arabia Department of Chemistry College of Science and HumanitiesPrince Sattam Bin Abdulaziz UniversityAl-kharj11942Saudi Arabia Department of Polymer Chemistry National Center for Radiation Research and Technology(NCRRT)Egyptian Atomic Energy AuthorityNasr CityP.O.Box 7551Cairo11762Egypt Department of Chemistry Faculty of ScienceDamanhour University22111 DamanhourEgypt

A translucent wooden substrate with long-lasting phosphorescence,high photostability and durability,tough surface,ultraviolet protection,high optical transmittance,and superhydrophobicity was *** long-lasting phosphorescent wooden substrate is able to continue emitting light for extended time ***-modified wood(LMW)was immobilized with a solution of epoxy resin(ER)and rare-earth doped aluminate(REDA)phosphor nanoparticles(NPs).For an improved dispersion of pigment,REDA was synthesized in a nanoscale particle size,and characterized by transmission electron microscopy(TEM)to indicate a particle size of 8-14 *** crystal structure of REDA nanoparticles was also proved by X-ray diffraction(XRD).For an improved production of long-persistent phosphorescent colo rless woods,REDA must be well-dispersed in MAA without *** and emissio n,as well as decay and lifetime spectra were *** morphologies of the wooden substrates with different ratios of REDA were investigated by scanning electron microscopy(SEM),X-ray fluorescence(XRF)analysis,Fourier transform infrared spectra(FT-IR),elemental mapping,and energy-dispersion Xray(EDXA).The phosphorescent woods show changes in color from colorless to green under ultraviolet(UV)irradiation,and to yellowish-green in the dark,as proved by the colorimetric parameters of the CIE Lab *** afterglow wood samples display an absorbance band at 365 nm and two phosphorescent bands at 431 and 520 *** UV shielding,photostability,and hydrophobicity were *** increasing REDA ratio,both static contact and slide angles are found to improve in the ranges of147.6°-163.6°and 9°-14°,*** long-lasting photoluminescence is optimized at a REDA ratio of 8%.The present strategy shows a large-scale production approach of multiple functional woods for many potential applications,such as smart glow in the dark windows and safety signs.

关键词： Translucent wood Rare-earth doped aluminate Superhydrophobic Long-lasting light emission Ultraviolet protection

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Interactive Visual Schedule with Avatar Buddies for Activity Planning in Autistic Children

Interactive Visual Schedule with Avatar Buddies for Activity...

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2023 International Symposium on World Ecological Design, ISWED 2023

作者： Hu, Yuqi Yao, Cheng Sun, Xu Liu, Bingjian Gao, Yuan Xue, Mengru Lyu, Hui Ningbo Innovation Center Zhejiang University China Faculty of Science and Engineering University of Nottingham Ningbo China China College of Computer Science and Technology Zhejiang University China Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute University of Nottingham Ningbo China China Faculty of Humanities and Arts Macau University of Science and Technology China

ISBN: (纸本)9781643685069

Autism spectrum disorder can greatly affect the well-being of autistic children and their family members. Visual aids, such as schedules, have been commonly used in this community for their benefits in multiple aspects. Utilizing digital technology, we presented the design of an interactive visual schedule system with avatar buddies for activity planning in autistic children. 12 pairs of participants were recruited, USE questionnaire and interviews were used for validation. The user study showed that the digital interactive system presented advantages in the perspective of usefulness, particularly in enhancing children's control over activity planning and assisting in activity completion, compared with traditional visual schedules. It demonstrated the feasibility of integrating digital technology into the field of health and highlighted the matching between the flexibility of digital technology and the personalized needs of special groups. © 2024 The Authors.

关键词： autistic children avatars buddy systems digital interactions visual aids

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Patterning Light for High Throughput, High Content, Deep Tissue Imaging

Patterning Light for High Throughput, High Content, Deep Tis...

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2023 Computational Optical Sensing and Imaging, COSI 2023 in Optica Imaging Congress - Part of Imaging and Applied Optics Congress 2023

作者： Zhou, Jian Wadduwage, Dushan N. So, Peter T.C. Laser Biomedical Research Center Massachusetts Institute of Technology CambridgeMA02139 United States Center for Advanced Imaging Faculty of Arts and Sciences Harvard University CambridgeMA02139 United States Department of Electronic and Telecommunication Engineering University of Moratuwa Sri Lanka

ISBN: (纸本)9781957171289

关键词： Tissue

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DEEP-squared:deep learning powered De-scattering with Excitation Patterning

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Light(Science & Applications) 2023年第10期12卷 2199-2214页

作者： Navodini Wijethilake Mithunjha Anandakumar Cheng Zheng Peter T.C.So Murat Yildirim Dushan N.Wadduwage Center for Advanced Imaging Faculty of Arts and SciencesHarvard UniversityCambridgeMAUSA Department of Electronic and Telecommunication Engineering University of MoratuwaMoratuwaSri Lanka Department of Mechanical Engineering Massachusetts Institute of Technology77 Massachusetts Ave.CambridgeMA 02139USA Laser Biomedical Research Center Massachusetts Institute of Technology77 Massachusetts Ave.CambridgeMA 02139USA Department of Biological Engineering Massachusetts Institute of Technology77 Massachusetts Ave.CambridgeMA 02139USA Picower Institute for Learning and Memory Massachusetts Institute of Technology77 Massachusetts Ave.CambridgeMA 02139USA Department of Neuroscience Cleveland Clinic Lerner Research InstituteClevelandOH 44195USA

Limited throughput is a key challenge in in vivo deep tissue imaging using nonlinear optical *** scanning multiphoton microscopy,the current gold standard,is slow especially compared to the widefield imaging modalities used for optically cleared or thin *** recently introduced“De-scattering with Excitation Patterning”or“DEEP”as a widefield alternative to point-scanning *** patterned multiphoton excitation,DEEP encodes spatial information inside tissue before ***,to de-scatter at typical depths,hundreds of such patterned excitations were *** this work,we present DEEP2,a deep learning-based model that can de-scatter images from just tens of patterned excitations instead of ***,we improve DEEP’s throughput by almost an order of *** demonstrate our method in multiple numerical and experimental imaging studies,including in vivo cortical vasculature imaging up to 4 scattering lengths deep in live mice.

关键词： scattering excitation scatter

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Prediction of water quality parameters by IoT and machine learning

Prediction of water quality parameters by IoT and machine le...

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2023 International Conference on Computer Communication and Informatics, ICCCI 2023

作者： Kolli, Srinivas Ranjani, M. Kavitha, P. Daniel, D. Arul Pon Chandramauli, Awadhesh VNR Vignana Jyothi Institute of Engineering & Technology Department of Information Technology Hyderabad India Computer Applications Jawaharlal Nehru College for Women Ulundurpet India Muthayammal Center for Advanced Research Muthayammal College of Arts & Science India Loyola College of Arts & Science Department of Computer Science and Applications India Uttaranchal Institute of Technology Uttaranchal University Department of Civil Engineering Dehrradun India

ISBN: (纸本)9798350348217

Increases in domestical applications and other applications drive the need for better clean Water Management in India. What makes up the 'chemical, physical, and biological' quality of freshwater There are three stages in the conventional method of monitoring water quality: sample, analysis, and inquiry. The scientists do these by hand. This method needs to be foolproof and predict a water supply's quality. They're Using the development of wireless sensor technologies, has also been some investigation into the possibility of monitoring water quality with wireless sensors put in water and communicating with farmers through brief messages regarding water. There has also been a study into the possibility of employing machine learning algorithms to analyze water quality. In light of recent advances in Machine Communication, which allow for devices to communicate with one another and smart ly analyze the data they collect. We have developed an 'smart water quality monitoring system by using wireless sensonrs' for residential areas that rely on water storage tanks. A pH sensor and a total dissolved solids meter are used in this system to provide accurate readings of the water's pH and dissolved solids levels. K-Means clustering, a machine learning technique, has been used to forecast water quality using a training data set consisting of various water samples. This system is now in its prototype stage, used with low-cost embedded devices like the Arduino Uno and Raspberry Pi3. © 2023 IEEE.

关键词： Water quality

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An Intelligent Deterministic Scheduling Method for Ultralow Latency Communication in Edge Enabled Industrial Internet of Things

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IEEE Transactions on Industrial Informatics 2023年第2期19卷 1756-1767页

作者： Lu, Yinzhi Yang, Liu Yang, Simon X. Hua, Qiaozhi Sangaiah, Arun Kumar Guo, Tan Yu, Keping School of Communication and Information Engineering Chongqing University of Posts and Telecommunications Chongqing400065 China Advanced Robotics and Intelligent Systems Laboratory School of Engineering University of Guelph GuelphONN1G2W1 Canada Computer School Hubei University of Arts and Science Xiangyang441000 China Future Technology Research Center National Yunlin University of Science and Technology Douliu City64002 Taiwan Graduate School of Science and Engineering Hosei University Tokyo184-8584 Japan Riken Center for Advanced Intelligence Project Riken Tokyo103-0027 Japan

Edge enabled Industrial Internet of Things (IIoT) platform is of great significance to accelerate the development of smart industry. However, with the dramatic increase in real-time IIoT applications, it is a great challenge to support fast response time, low latency, and efficient bandwidth utilization. To address this issue, time sensitive network (TSN) is recently researched to realize low latency communication via deterministic scheduling. To the best of our knowledge, the combinability of multiple flows, which can significantly affect the scheduling performance, has never been systematically analyzed before. In this article, we first analyze the combinability problem. Then, a noncollision theory based deterministic scheduling (NDS) method is proposed to achieve ultralow latency communication for the time-sensitive flows. Moreover, to improve bandwidth utilization, a dynamic queue scheduling (DQS) method is presented for the best-effort flows. Experiment results demonstrate that NDS/DQS can well support deterministic ultralow latency services and guarantee efficient bandwidth utilization. © 2005-2012 IEEE.

关键词： Bandwidth

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Exploring Individual and Sex Differences from Brain EEG Signals under Music Stimuli

Exploring Individual and Sex Differences from Brain EEG Sign...

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International Symposium on Soft Computing and Intelligent Systems (SCIS)

作者： Ying Luo Satoshi Nishida Ichiro Kobayashi Advanced Sciences GS of Humanities and Sciences Ochanomizu University Tokyo Japan Center for Information and Neural Networks Advanced ICT Research Institute National Institute of Information and Communications Technology Osaka Japan

ISBN: (数字)9798350373332

ISBN: (纸本)9798350373349

The intrinsic mechanisms of how the human brain processes music, a complex and abstract linguistic system, have remained incompletely resolved. Therefore, using experimental data from music-EEG behavioral experiments, the present study proposes a novel large-scale model aimed at dissecting the response of the brain's language system to music stimuli. This study achieved several contributions. First, the significance of gender and individual differences in the data was verified using different nonparametric tests. The results confirmed significant differences in individual responses and gender-related patterns when the human brain was stimulated by music. In addition, the author introduced the idea of visual computing to construct a multimodal model. We finalized the model architecture that was most suitable for parsing human brain EEG signals and music through the ablation study. The baseline model proposed in this study obtained 89.39% accuracy in a binary classification task for sentimental prediction as the downstream task. The significant results obtained by this study are expected to advance the research related to music and human brain activity.

关键词： Training Visualization Computational modeling Time series analysis Brain modeling Electroencephalography Data models Encoding Multiple signal classification Decoding

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“On Water”Effect for Green Click Reaction:Spontaneous Polymerization of Activated Alkyne with“Inert”Aromatic Amine in Aqueous Media

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CCS Chemistry 2023年第2期5卷 385-396页

作者： Xinyue Liu Chen Zhang Lianrui Hu Jinghan Wang Kai Li Hai-Tao Feng Jacky WYLam Benzhao He Ben Zhong Tang Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and ReconstructionGuangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional MaterialsThe Hong Kong University of Science and TechnologyClear Water BayKowloonHong Kong 999077 HKUST-Shenzhen Research Institute Shenzhen 518057 Department of Biomedical Engineering SUSTech Academy for Advanced Interdisciplinary StudiesSouthern University of Science and TechnologyShenzhen 518055 AIE Research Center Shaanxi Key Laboratory of PhytochemistryCollege of Chemistry and Chemical EngineeringBaoji University of Arts and SciencesBaoji 721013 Center for Advanced Materials Research Beijing Normal University at ZhuhaiZhuhai 519085 School of Science and Engineering Shenzhen Institute of Aggregate Science and TechnologyThe Chinese University of Hong KongShenzhen 518172

Organic reactions in water have attracted great attention due to their advantages such as unique reaction performance and environmental *** reactions as well as polymerizations in aqueous media have been extensively investigated,and so far,there has been a massive amount of reporting about polymerizations in ***,reports about click polymerization in water have been ***,click polymerization of activated alkyne and aromatic amine in aqueous media is ***“on water”effect facilitates polymerization in aqueous media better than in organic solvents,and its mechanism is deciphered through experimental data and theoretical *** participates in the reaction and reduces the energy barrier to some ***,polymerization makes it possible for aromatic amine with low reactivity to be *** using this strategy,polymers with high molecular weights can be obtained in high yields(up to 95.4%).They show good thermal stability and high *** can be *** polymers with tetraphenylethylene moieties show aggregation-induced emission and can be used as materials for generating photopatterns and visualizing agents for specific staining of lysosome in living cells.

关键词： “on water”effect click polymerization aromatic amine photodegradation specific lysosome-staining

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