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26th Conference of the Oriental COCOSDA International Committee for the Co-ordination and Standardization of Speech Databases and Assessment Techniques, O-COCOSDA 2023

作者： Xi, Hang Sakti, Sakriani Japan Advanced Institute of Science and Technology Graduate School of Advanced Science and Technology Nomi City Japan

ISBN: (纸本)9798350344028

Most speech translation technologies, which mimic human interpreters, may eventually replace human interpreters. In contrast, our long-term goal is to construct an augmented intelligent system that can support interpreters when they struggle. As initial states, this paper explores the challenges encountered by professional interpreters based on subjective ratings and eye-tracking measurements (pupil diameter). We investigate different impacts of minute fluctuations in pupil diameter from different levels of professional interpreters in response to a stimulus. We analyze different levels of professional interpreters while they simultaneously interpret long utterances in two ways (Japanese-to-English and English-to-Japanese) to determine whether different impacts are experienced when the interpreters are native languages of the source language or the target language. © 2023 IEEE.

关键词： Intelligent systems

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Tunable polarization-drived superior energy storage performance in PbZrO_(3) thin films

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Journal of advanced Ceramics 2023年第5期12卷 930-942页

作者： Tiandong Zhang Zhuangzhuang Shi Chao Yin Changhai Zhang Yue Zhang Yongquan Zhang Qingguo Chen Qingguo Chi Key Laboratory of Engineering Dielectrics and Its Application Ministry of EducationHarbin University of Science and TechnologyHarbin 150080China Department of Materials Science and Engineering Korea Advanced Institute of Science and TechnologyDaejeon 305-701Republic of Korea

Antiferroelectric PbZrO_(3)(AFE PZO)films have great potential to be used as the energy storage dielectrics due to the unique electric field(E)-induced phase transition ***,the phase transition process always accompanies a polarization(P)hysteresis effect that induces the large energy loss(Wloss)and lowers the breakdown strength(EBDS),leading to the inferior energy storage density(Wrec)as well as low *** this work,the synergistic strategies by doping smaller ions of Li^(+)–Al^(3+)to substitute Pb2+and lowering the annealing temperature(T)from 700 to 550℃are proposed to change the microstructures and tune the polarization characters of PZO films,except to dramatically improve the energy storage *** prepared Pb_((1−x))(Li_(0.5)Al_(0.5))_(x)ZrO_(3)(P_((1−x))(L_(0.5)A_(0.5))_(x)ZO)films exhibit ferroelectric(FE)-like rather than AFE character once the doping content of Li^(+)–Al^(3+)ions reaches 6 mol%,accompanying a significant improvement of W_(rec) of 49.09 J/cm^(3),but the energy storage efficiency(η)is only 47.94%due to the long-correlation of FE ***,the low-temperature annealing is carried out to reduce the crystalline degree and the P loss.P_(0.94)(L_(0.5)A_(0.5))_(0.06)ZO films annealed at 550℃deliver a linear-like polarization behavior rather than FE-like behavior annealed at 700℃,and the lowered remanent polarization(P_(r))as well as improved E_(BDS)(4814 kV/cm)results in the superior Wrec of 58.7 J/cm^(3) and efficiency of 79.16%,simultaneously possessing excellent frequency and temperature stability and good electric fatigue tolerance.

关键词： lead zirconate ionic pair polarization breakdown strength energy storage

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Effect of Carbon on the Microstructures and Stress Rupture Properties of a Polycrystalline Ni-Based Superalloy

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Acta Metallurgica Sinica(English Letters) 2025年第1期38卷 151-163页

作者： Han Wang Shijie Sun Naicheng Sheng Guichen Hou Jinguo Li Yizhou Zhou Xiaofeng Sun Shi-Changxu Innovation Center for Advanced Materials Institute of Metal ResearchChinese Academy of SciencesShenyang110016China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang110016China

The effect of carbon content on the microstructures and stress rupture properties of a newly developed polycrystalline Ni-based superalloy with high Cr content has been *** was observed that both grain size and the number of carbides increased with an increase in carbon *** heat treatment,granular M_(23)C_(6)carbides were dispersed around MC carbides along grain boundaries and inside *** quantity of granular M_(23)C_(6)carbides increased while their sizes *** findings can be verified with the results of thermodynamic calculation and differential scanning calorimetry *** stress rupture times(975℃/225 MPa)increased from 13.3 to 25.5 h with the carbon content increased from 0.1 to 0.2 wt.%.The improvement can be attributed to two primary ***,grain boundary is typically weak region during deformation process and the grain size increased as carbon content increased in the ***,carbides act as hindrances to impede dislocation movement,leading to dislocation *** carbon content rose,the quantity of carbides in interdendritic regions and grain boundaries increased,providing a certain degree of strengthening effect and resulting in a longer stress rupture time.

关键词： Ni-based superalloy Microstructure Stress rupture property Carbon Carbide

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Isolated Japanese Sign Language Recognition Based on Image Entropy Variation Rate and Score-Level Multi-Cue Fusion 2

Isolated Japanese Sign Language Recognition Based on Image E...

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2nd International Conference on Computer Graphics and Image Processing, CGIP 2024

作者： Bai, Bingyuan Miyata, Kazunori School of Information Science Japan Advanced Institute of Science and Technology Nomi Japan

ISBN: (纸本)9798350374186

The challenge in Isolated Sign Language Recognition (ISLR) research is to effectively eliminate transition frame redundancy and to integrate disparate features. To solve these two problems, We proposed an ISLR approach that employs a keyframe abstraction method based on Image Entropy Variation Rate (IEVR) and score-level fusion. First, key sign frames were extracted from sequential video frames based on IEVR. Then, four other cues were computed-hand cropping, masking, skele-tal landmarks, and optical flow-from these keyframes, for a total of five cues. Finally, these cues were used to conduct score-level fusion in different weighting strategies. The method was evalu-ated using a publicly available isolated Japanese Sign Language (JSL) dataset. The evaluation revealed the average accuracy of our IEVR-based method to be 76.71 %, which indicates that our method outperforms other keyframe abstraction methods, and the fusion result was 97.87 %, showing an improvement of 1.43 % over the best single-cue result. © 2024 IEEE.

关键词： Image fusion

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In-situ solution Fe-doping: A versatile pathway to significantly enhance charge separation in CuBi2O4 photocathodes

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Journal of Energy Chemistry 2025年第6期105卷 1-11页

作者： Jing Gao Qitao Liu Haotian Wang Muhammad Bilal Akbar Zhihua Wu Jiabo Le Jianming Li Qinglu Liu Yongbo Kuang School of Materials Science and Chemical Engineering Ningbo University Zhejiang Key Laboratory of Advanced Fuel Cells and Electrolyzes Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Institute of Materials Ningbo University of Technology Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry School of Science and Research Center for Industries of the Future Westlake University Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences

CuBi2O4（CBO） photocathodes hold significant promise for efficient photoelectrochemical（PEC） water splitting due to their favorable band gap and theoretical onset ***,their practical application is hindered by poor charge separation ***,we introduce a characteristic in-situ solution Fe-doping strategy that markedly improves photoelectrochemical performance of CBO,doubling the photocurrent density and achieving an unprecedented 190 mV anodic shift in the onset *** integrating with an electrochemical oxidation post-treatment,a record incident photon-to-current efficiency（IPCE） exceeding 40% at 0.6 V *** under visible light illumination is *** versatility of the doping strategy is demonstrated across CBO photocathodes synthesized by different methods with various morphologies,grain sizes,and *** studies reveal that the gradient distribution of Fe3+ions generates an internal electric field that facilitates efficient charge separation and increases acceptor *** strong Fe-O bonding also enhances structural stability against photoinduced ***,our investigation uncovers the non-temperature-dependent nature of CBO photocurrent,indicating that PEC performance enhancement primarily depends on reducing carrier recombination rather than improving bulk *** work lays the groundwork for future advancements in water splitting performance of CBO photocathodes,offering a complementary strategy to conventional methods for enhancing charge separation efficiency.

关键词： Charge separation efficiency CuBi2O4 photocathode Gradient Fe doping Internal electric field Post-synthetic treatment Surface states passivation

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Design and fabrication of bipolar plates for PEM water electrolyser

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Journal of Materials science & technology 2023年第15期146卷 19-41页

作者： Xiejing Luo Chenhao Ren Jie Song Hong Luo Kui Xiao Dawei Zhang Junjie Hao Zhanfeng Deng Chaofang Dong Xiaogang Li Beijing Advanced Innovation Center for Materials Genome Engineering Key Laboratory for Corrosion and Protection(MOE)Beijing 100083China Institute for Advanced Materials and Technology University of Science and Technology BeijingBeijing 100083China State Key Laboratory of Advanced Power Transmission Technology State Grid Smart Grid Research Institute Co.Ltd.Beijing 102209China

Hydrogen energy,whether in generation plants or utilization facilities,plays a decisive role in the mission to achieve net-zero greenhouse gas emissions,all to minimize *** growing demand for clean energy carrier steadily accelerates the development of hydrogen production processes,and therein proton exchange membrane(PEM)water electrolysis is deemed a promising long-term strategy for hydrogen preparation and *** review retrospects recent developments and applications of bipolar plates(BPs)as key components in PEM fuel cells and water *** main content includes multifaceted challenges in the R&D or fabrication of BPs and potential future trends have also been *** details cover the BPs matrix(metallic materials and carbon composites)and the surface coating types(metal and compound coatings,carbon-based coatings,and polymer coatings),as well as the influence of flow field design for mass ***-term development and feasible researches of BPs are *** in the following aspects:(1)Structural and functional integration of components,such as material fabrication and flow field geometry optimization using 3D printing technology;(2)Introduction of environment-friendly renewable energy for hydrogen production;(3)Research on hydrogen energy reversible systems;(4)Composition optimization of surface coatings based on computational materials science and(5)systematic design expected to evolve into the next generation of BPs.

关键词： PEM water electrolyser Bipolar plates Corrosion Coatings Interfacial contact resistance

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Recent progress on stability and applications of flexible perovskite photodetectors

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Journal of Semiconductors 2025年第1期46卷 5-19页

作者： Ying Hu Qianpeng Zhang Junchao Han Xinxin Lian Hualiang Lv Yu Pei Siqing Shen Yongli Liang Hao Hu Meng Chen Xiaoliang Mo Junhao Chu State Key Laboratory of Photovoltaic Science and Technology Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and PerceptionDepartment of Materials ScienceInstitute of OptoelectronicsFudan UniversityShanghai 200433China Advanced Silicon Technology Co. Ltd.Shanghai 201616China

Flexible photodetectors have garnered significant attention by virtue of their potential applications in environmental monitoring,wearable healthcare,imaging sensing,and portable optical *** stand out as particularly promising materials for photodetectors,offering exceptional optoelectronic properties,tunable band gaps,low-temperature solution processing,and notable mechanical *** this review,we explore the latest progress in flexible perovskite photodetectors,emphasizing the strategies developed for photoactive materials and device structures to enhance optoelectronic performance and ***,we discuss typical applications of these devices and offer insights into future directions and potential applications.

关键词： perovskite flexible photodetector stability versatile applications

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A SLAM Method for Indoor Degradation Environment Based on Lidar/IμUWB Fusion

A SLAM Method for Indoor Degradation Environment Based on Li...

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2024 IEEE International Conference on Control science and Systems Engineering, ICCSSE 2024

作者： Pan, Tianxiang Song, Jiajia Li, Kun Di, Jian Ji, Haibo Wu, Ke University of Science and Technology of China Department of Automation Hefei China Institute of Advanced Technology University of Science and Technology of China Hefei China

ISBN: (纸本)9798331517199

Currently, 3D Lidar is widely used in indoor SLAM tasks due to its stable and reliable measurement performance. However, it suffers from significant positioning and mapping errors in indoor degraded environments, making it difficult to ensure high global consistency. This issue has long constrained its development. To address these challenges, this paper proposes an indoor mobile robot SLAM algorithm based on multi-sensor information fusion. This method bypasses the need for relying solely on degraded state estimation, thereby overcoming the limitations of a single sensor in real-world environments by leveraging complementary features between sensors to solve the indoor degradation problem. This paper integrates Inertial Measurement Unit (IMU), Ultra-Wideband (UWB) ranging, and Lidar information, and designs a complete SLAM algorithm framework based on nonlinear optimization and an error-state Kalman filter. At the same time, the degradation level of the point cloud perceived by the Lidar is used as a key basis for selecting the UWB residual weight, thereby addressing the problem of indoor Lidar point cloud degradation. Finally, this paper demonstrates the superiority of the algorithm through real-world experiments. © 2024 IEEE.

关键词： Information fusion

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Multi-scale feature fusion for facial expression recognition

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Neural Computing and Applications 2025年第17期37卷 11399-11420页

作者： Guo, Jiatao Peng, Junjie Huang, Yansong Chen, Gan Cai, Zesu Tan, Shuhua School of Computer Engineering and Science Shanghai University Shanghai China Shanghai Institute for Advanced Communication and Data Science Shanghai University Shanghai China School of Computer Science and Technology Harbin Institute of Technology Harbin China National Engineering Laboratory for Logistics Information Technology YTO Express Co. Ltd. Shanghai China

As an important computer vision task that can be used in many areas, facial expression recognition (FER) has been widely studied which much progress has been obtained especially when deep learning (DL) approaches have been introduced in FER. However, existing methods are restricted to extracting localized information or utilizing attention mechanism to focus on the region most relevant to the emotion, possibly resulting in errors in facial expression interpretation. Moreover, the inconsistency of image sizes in the wild FER datasets further increases the difficulty of the FER task. To address these issues, we propose a multi-scale feature fusion (MSFF) for FER. Specifically, our method first extracts features from facial images using multi-scale feature extraction to obtain rich multi-dimensional information. Meanwhile, extensive feature extraction at different scales is achieved by expanding the receptive field of the model, which provides the basis for more detailed analysis of facial expressions. Eventually, features at different scales are fused to enhance their synergistic effect. Subsequently, the adaptive extraction of comprehensive and valuable information from the fused features is performed, optimizing the performance of expression recognition. Extensive experimental results demonstrate that the proposed method outperforms the state-of-the-art methods on in-the-wild datasets. It is promising for FER in realistic and complex scenarios. © The Author(s), under exclusive licence to Springer-Verlag London Ltd., part of Springer Nature 2025.

关键词： Feature extraction

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Metal-Salen-Incorporated conjugated microporous polymers as robust artificial leaves for solar-driven reduction of atmospheric CO_(2)with H_(2)O

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Carbon Energy 2025年第1期7卷 1-11页

作者： Wei Wu Zhaocen Dong Mantao Chen Waner Li An Liao Qing Liu Yachao Zhang Zhixin Zhou Chao Zeng Xuezhong Gong Chunhui Dai Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation School of Chemistry and Materials ScienceEast China University of TechnologyNanchang330013China Institute of Hybrid Materials National Center of International Research for Hybrid Materials TechnologyNational Base of International Science&Technology CooperationCollege of Materials Science and EngineeringQingdao UniversityQingdao266071China Institute of Advanced Materials(IAM) Jiangxi Normal UniversityNanchangChina

Exploration of efficient and stable photocatalysts to mimic natural leaves for the conversion of atmospheric CO_(2)into hydrocarbons utilizing solar light is very important but remains a major ***,we report the design of four novel metal-salen-incorporated conjugated microporous polymers as robust artificial leaves for photoreduction of atmospheric CO_(2)with gaseous *** to the rich nitrogen and oxygen moieties in the polymeric frameworks,they show a maximum CO_(2)adsorption capacity of 46.1 cm3 g^(−1)and adsorption selectivity for CO_(2)/N_(2)of up to 82 at 273 *** air atmosphere and simulated solar light(100mWcm^(−2)),TEPT-Zn shows an excellent CO yield of 304.96μmol h^(−1)g^(−1)with a selectivity of approximately 100%,which represents one of the best results in terms of organic photocatalysts for gas-phase CO_(2)photoreduction so ***,only small degradation in the CO yield is observed even after 120-h continuous *** importantly,a good CO yield of 152.52μmol g^(−1)was achieved by directly exposing the photocatalytic reaction of TEPT-Zn in an outdoor environment for 3 h(25-28℃,52.3±7.9mWcm^(−2)).This work provides an avenue for the continued development of advanced polymers toward gas-phase photoconversion of CO_(2)from air.

关键词： air atmosphere artificial leaf CO_(2)photoreduction conjugated microporous polymers metal-salen

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