检索结果-内蒙古大学图书馆

12th International Workshop on Structural Health Monitoring: Enabling Intelligent Life-Cycle Health Management for Industry Internet of Things (IIOT), IWSHM 2019

作者： Gupta, Sumit Kim, Hyung Lee, Han-Joo Kim, Hyonny Loh, Kenneth J. Department of Structural Engineering University of California-San Diego San DiegoCA92093 United States Materials Science and Engineering Program University of California-San Diego San DiegoCA92093 United States

ISBN: (纸本)9781605956015

Despite the advantages and increasing prevalence of composite use in aerospace structures, they are susceptible to unique damage modes such as cracks, delamination, and manufacturing defects, which are fundamentally very different than those that occur in metals. In particular, subsurface damage can be hidden from plain sight and lead to catastrophic structural failure if left undetected. Thus, this study aims to develop a noncontact, nondestructive inspection technique (NDI) for rapid and in situ subsurface damage assessment of composites. The proposed technique works on the principle of electrical capacitance tomography (ECT). Unlike conventional ECT systems, electrodes were designed and arranged to form a planar array. By propagating electric fields in the volumetric region above the electrode plane and measuring mutual capacitances between electrodes, the volumetric permittivity distribution of the interrogated region could be determined. First, a custom electrode array was built, and different objects were interrogated for validation. The changes in electrical permittivity distributions (and their corresponding locations) due to the presence of these objects were successfully detected. Second, subsurface damage, such as voids, were introduced in 3D-printed test specimens, which were also successfully characterized by the planar ECT system. Last, a carbon fiber-reinforced polymer composite (CFRP) specimen was fabricated and then subjected to impact to introduce subsurface delamination. The specimen was imaged using planar ECT, and the reconstructed permittivity distribution was compared with C-scan images. The results showed that the proposed system was able to detect the location and extent of impact-induced delamination in CFRP panels, thereby demonstrating its potential as a viable NDI technique. © International Workshop on Structural Health Monitoring. All rights reserved.

关键词： Structural health monitoring

来源：评论

学校读者我要写书评

暂无评论

Plasmon induced field amplification for enhancing photoelectrochemical oxidative valorization

引用

Applied Catalysis B: Environment and Energy 2025年 378卷

作者： Seung Hun Roh Yuankai Li Jun Young Kim Won Tae Hong Hyungu Han Chan-Woo Jung Young Moon Choi Gang Min Noh Yoon Seo Jang Ki Hyun Kim Jun-Hyuk Choi Dae-Geun Choi Sae Byeok Jo Jong Hyeok Park Chan-Hwa Chung Seok Joon Kwon Ji-Hee Kim Jung Kyu Kim School of Chemical Engineering Sungkyunkwan University (SKKU) Suwon 16419 Republic of Korea Department of Biomedical-Chemical Engineering Catholic University of Korea Bucheon 14662 Republic of Korea Department of Energy Science Sungkyunkwan University (SKKU) Suwon 16419 Republic of Korea Department of Chemical and Biomolecular Engineering Yonsei University Seoul 03722 Republic of Korea School of Pharmacy Sungkyunkwan University (SKKU) Suwon 16419 Republic of Korea Nano Lithography & Manufacturing Research Center Korea Institute of Machinery & Materials Daejeon 34103 Republic of Korea SKKU Institute of Energy Science and Technology (SIEST) Sungkyunkwan University (SKKU) Suwon 16419 Republic of Korea SKKU Institute of Energy Science and Technology (SIEST) Department of Semiconductor Convergence Engineering and Department of Quantum Engineering Sungkyunkwan University (SKKU) Suwon 16419 Republic of Korea Department of Physics Pusan National University Busan 46241 Republic of Korea SKKU Advanced Institute of Nano Technology (SAINT) Sungkyunkwan University (SKKU) Suwon 16419 Republic of Korea

Photoelectrochemical (PEC) oxidative reaction provides promising strategies to valorization of massively produced low-value waste resources, such as glycerol. However, the PEC oxidative valorization of glycerol to formic acid (FA) is limited by insufficient conversion rate and challenge in selectivity control, attributed to the multistep reaction pathway of the glycerol oxidation reaction (GOR). Herein, we demonstrate the plasmon-induced resonant energy transfer driven amplification of E-field into the n-type metal oxide photoanode by introducing a hierarchically ordered array of Au nanoparticles cluster ( c -Au) for boosting PEC GOR. The nanopositioned c -Au array effectively amplified the E-field within the BiVO 4 -based photoanode (BVO) by unique plasmonic coupling, realized by inter- and intra-cluster interactions. The amplified E-field notably prolongs the charge carrier lifetime, suppresses the direct charge recombination, and ameliorates the charge separation, inducing the enhanced the surface photovoltage. Consequently, the designed c -Au shows significantly promoted PEC GOR, effectively achieving the ∼3-fold higher conversion rate of glycerol to FA and significantly improving its Faradaic efficiency from 18.8 % for BVO to 27.8 %. These improvements are attributed to the promoting GOR over the multistep pathway by c -Au while suppressing the competing water oxidation reaction. Our report can be extended for manipulating PEC oxidative reactions toward targeting expandable productions.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Tuning Shortwave-InfraredJ-aggregates of Aromatic Ring-Fused Aza-BODIPYs by Peripheral Substituents for Combined Photothermal and Photodynamic Therapies at Ultralow Laser Power

引用

Angewandte Chemie 2024年第11期136卷

作者： Dr. Xing Guo Dr. Wanle Sheng Hongfei Pan Luying Guo Huiquan Zuo Zeyu Wu Prof. Shizhang Ling Prof. Xiaochun Jiang Prof. Zhijian Chen Prof. Lijuan Jiao Prof. Erhong Hao Laboratory of Functionalized Molecular Solids Ministry of Education Institution Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement College of Chemistry and Materials Science Anhui Normal University Wuhu Anhui 241002 China School of Chemical Engineering and Technology Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin) Tianjin University Tianjin 300072 China The Translational Research Institute for Neurological Disorders Department of Neurosurgery The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College) Wuhu 241001 China

Achieving photothermal therapy (PTT) at ultralow laser power density is crucial for minimizing photo-damage and allowing for higher maximum permissible skin exposure. However, this requires photothermal agents to possess not just superior photothermal conversion efficiency (PCE), but also exceptional near-infrared (NIR) absorptivity. J -aggregates, exhibit a significant redshift and narrower absorption peak with a higher extinction coefficient. Nevertheless, achieving predictable J -aggregates through molecular design remains a challenge. In this study, we successfully induced desirable J- aggregation (λ abs max : 968 nm, ϵ: 2.96×10 5 M −1 cm −1 , λ em max : 972 nm, Φ FL : 6.2 %) by tuning electrostatic interactions between π-conjugated molecular planes through manipulating molecular surface electrostatic potential of aromatic ring-fused aza-BODIPY dyes. Notably, by controlling the preparation method for encapsulating dyes into F-127 polymer, we were able to selectively generate H -/ J -aggregates, respectively. Furthermore, the J -aggregates exhibited two controllable morphologies: nanospheres and nanowires. Importantly, the shortwave-infrared J -aggregated nanoparticles with impressive PCE of 72.9 % effectively destroyed cancer cells and mice-tumors at an ultralow power density of 0.27 W cm −2 (915 nm). This phototherapeutic nano-platform, which generates predictable J- aggregation behavior, and can controllably form J- / H- aggregates and selectable J- aggregate morphology, is a valuable paradigm for developing photothermal agents for tumor-treatment at ultralow laser power density.

关键词： J-aggregates aza-BODIPY NIR Photothermal Therapy

来源：评论

学校读者我要写书评

暂无评论

Deep learning-based air pollution analysis on carbon monoxide in Taiwan

引用

Ecological Informatics 2024年 80卷

作者： Cheng-Hong Yang Po-Hung Chen Chih-Hsien Wu Cheng-San Yang Li-Yeh Chuang Department of Information Management Tainan University of Technology Tainan Taiwan Department of Electronic Engineering National Kaohsiung University of Science and Technology Kaohsiung Taiwan Ph. D. Program in Biomedical Engineering Kaohsiung Medical University Kaohsiung Taiwan School of Dentistry Kaohsiung Medical University Kaohsiung Taiwan Drug Development and Value Creation Research Center Kaohsiung Medical University Kaohsiung Taiwan Division of Plastic and Reconstruction Surgery Department of Surgery Ditmanson Medical Foundation Chia-Yi Christian Hospital Chia-Yi Taiwan Department of Chemical Engineering and Institute of Biotechnology and Chemical Engineering I-Shou University Kaohsiung Taiwan

Global air pollution poses a threat to humanity. Specifically, CO directly affects cardiovascular and other organ tissues and leads to numerous chronic diseases and major public health problems. The effective implementation of a deep learning model for predicting variations in CO levels would enable the early formulation of policies for controlling air pollution. In this study, a seasonal gated recurrent unit (SGRU) model, which is a deep learning time-series prediction model, was developed to predict the levels of CO in Taiwan. Atmospheric CO measurements from 2005 to 2021 were collected from the Environmental Protection Administration of Taiwan and preprocessed using the Kalman filter to achieve accurate forecasting. The performance of the proposed SGRU model was compared with that of the autoregressive integrated moving average (ARIMA), seasonal ARIMA, exponential smoothing (ETS), Holt–Winters ETS, support vector regression, and seasonal long short-term memory models in terms of mean absolute percentage error (MAPE) and root mean square error. The SGRU model achieved the lowest MAPE value of 0.94, which demonstrated its superior performance. The construction of an accurate air pollution prediction model can assist government entities in formulating health and social care strategies and in planning future air pollution control measures.

关键词： Air pollution Carbon Monoxide (CO) Deep learning Seasonal gated recurrent unit (SGRU)

来源：评论

学校读者我要写书评

暂无评论

Bacteria invade the brain following intracortical microelectrode implantation, inducing gut-brain axis disruption and contributing to reduced microelectrode performance

引用

Nature Communications 2025年第1期16卷 1-27页

作者： Hoeferlin, George F. Grabinski, Sarah E. Druschel, Lindsey N. Duncan, Jonathan L. Burkhart, Grace Weagraff, Gwendolyn R. Lee, Alice H. Hong, Christopher Bambroo, Meera Olivares, Hannah Bajwa, Tejas Coleman, Jennifer Li, Longshun Memberg, William Sweet, Jennifer Hamedani, Hoda Amani Acharya, Abhinav P. Hernandez-Reynoso, Ana G. Donskey, Curtis Jaskiw, George Ricky Chan, E. Shoffstall, Andrew J. Bolu Ajiboye, A. von Recum, Horst A. Zhang, Liangliang Capadona, Jeffrey R. Department of Biomedical Engineering Case Western Reserve University Cleveland OH United States Advanced Platform Technology Center Louis Stokes Cleveland Department of Veterans Affairs Medical Center Cleveland OH United States Department of Population and Quantitative Health Sciences Case Western Reserve University Cleveland OH United States Department of Biology University of Florida Gainesville FL United States Louis Stokes Cleveland Department of Veterans Affairs Medical Center Cleveland OH United States Department of Neurological Surgery University Hospitals Case Medical Center Cleveland OH United States Department of Materials Science and Engineering Case Western Reserve University Cleveland OH United States Department of Bioengineering The University of Texas at Dallas Richardson TX United States Division of Infectious Diseases & HIV Medicine in the Department of Medicine Case Western Reserve University School of Medicine Cleveland OH United States Department of Psychiatry Case Western Reserve University Cleveland OH United States Cleveland Institute for Computational Biology Case Western Reserve University Cleveland OH United States Case Comprehensive Cancer Center Case Western Reserve University Cleveland OH United States

Brain-machine interface performance can be affected by neuroinflammatory responses due to blood-brain barrier (BBB) damage following intracortical microelectrode implantation. Recent findings suggest that certain gut bacterial constituents might enter the brain through damaged BBB. Therefore, we hypothesized that damage to the BBB caused by microelectrode implantation could facilitate microbiome entry into the brain. In our study, we found bacterial sequences, including gut-related ones, in the brains of mice with implanted microelectrodes. These sequences changed over time. Mice treated with antibiotics showed a reduced presence of these bacteria and had a different inflammatory response, which temporarily improved microelectrode recording performance. However, long-term antibiotic use worsened performance and disrupted neurodegenerative pathways. Many bacterial sequences found were not present in the gut or in unimplanted brains. Together, the current study established a paradigm-shifting mechanism that may contribute to chronic intracortical microelectrode recording performance and affect overall brain health following intracortical microelectrode implantation. © This is a U.S. Government work and not under copyright protection in the US;foreign copyright protection may apply 2025.

关键词：

来源：评论

学校读者我要写书评

暂无评论

de Gennes Narrowing and the Relationship between Structure and Dynamics in Self-Organized Ion Beam Nanopatterning

arXiv

引用

arXiv 2020年

作者： Myint, Peco Ludwig, Karl F. Wiegart, Lutz Zhang, Yugang Fluerasu, Andrei Zhang, Xiaozhi Headrick, Randall L. Division of Materials Science and Engineering Boston University BostonMA02215 United States Department of Physics Division of Materials Science and Engineering Boston University BostonMA02215 United States National Synchrotron Light Source II Brookhaven National Lab UptonNY11973 United States Department of Physics and Materials Science Program University of Vermont BurlingtonVT05405 United States

Investigating the relationship between structure and dynamical processes is a central goal in condensed matter physics. Perhaps the most noted relationship between the two is the phenomenon of de Gennes narrowing, in which relaxation times in liquids are proportional to the scattering structure factor. Here a similar relationship is discovered during the self-organized ion beam nanopatterning of silicon using coherent x-ray scattering. However, in contrast to the exponential relaxation of fluctuations in classic de Gennes narrowing, the dynamic surface exhibits a wide range of behavior as a function of length scale, with a compressed exponential relaxation at lengths corresponding to the dominant structural motif - self-organized nanoscale ripples. These behaviors are reproduced in simulations of a nonlinear model describing the surface evolution. We suggest that the compressed exponential behavior observed here is due to the morphological persistence of the self-organized surface ripple patterns which form and evolve during ion beam nanopatterning. Copyright © 2020, The Authors. All rights reserved.

关键词： Ions

来源：评论

学校读者我要写书评

暂无评论

Erratum to ' Anomaly Segmentation in Retinal Images with Possion-Blending Data Augmentation' [Medical Image Analysis 81 (2022) 102534]

引用

Medical image analysis 2023年 83卷 102671页

作者： Hualin Wang Yuhong Zhou Jiong Zhang Jianqin Lei Dongke Sun Feng Xu Xiayu Xu The Key Laboratory of Biomedical Information Engineering of Ministry of Education School of Life Science and Technology Xi'an Jiaotong University Xi'an 710049 China. Cixi Institute of Biomedical Engineering Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315300 China. Department of Ophthalmology First Affiliated Hospital of Xi'an Jiaotong University Xi'an 710049 China. Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments Southeast University Southeast University Nanjing 211189 China. The Key Laboratory of Biomedical Information Engineering of Ministry of Education School of Life Science and Technology Xi'an Jiaotong University Xi'an 710049 China Zhejiang Research Institute of Xi'an Jiaotong University Hangzhou 311215 China. Electronic address: xiayuxu@***.

来源：评论

学校读者我要写书评

暂无评论

Quantum critical behavior of the hyperkagome magnet Mn3CoSi

引用

Physical Review Research 2024年第1期6卷 013144-013144页

作者： Hiroki Yamauchi Dita Puspita Sari Yukio Yasui Terutoshi Sakakura Hiroyuki Kimura Akiko Nakao Takashi Ohhara Takashi Honda Katsuaki Kodama Naoki Igawa Kazutaka Ikeda Kazuki Iida Daichi Ueta Tetsuya Yokoo Matthias D. Frontzek Songxue Chi Jaime A. Fernandez-Baca Kenji M. Kojima Donald Arseneau Gerald Morris Bassam Hitti Yipeng Cai Adam Berlie Isao Watanabe Pai-Tse Hsu Yu-Sheng Chen Min Kai Lee Amelia Elisabeth Hall Geetha Balakrishnan Lieh-Jeng Chang Shin-ichi Shamoto Materials Sciences Research Center Japan Atomic Energy Agency (JAEA) Tokai Ibaraki 319-1195 Japan Innovative Global Program College of Engineering Shibaura Institute of Technology 307 Fukasaku Minuma-ku Saitama City Saitama 337-8570 Japan Meson Science Laboratory RIKEN Nishina Center 2-1 Hirosawa Wako Saitama 351-0198 Japan School of Science and Technology Meiji University Kawasaki Kanagawa 214-8571 27 Japan Neutron Industrial Technology Center Comprehensive Research Organization for Science and Society (CROSS) Tokai Ibaraki 319-1106 Japan Institute of Multidisciprinary Research for Advanced Materials Tohoku University Sendai 980-8577 Japan Neutron Science and Technology Center Comprehensive Research Organization for Science and Society (CROSS) Tokai Ibaraki 319-1106 Japan J-PARC Center Japan Atomic Energy Agency (JAEA) Tokai Ibaraki 319-1195 Japan Institute of Materials Structure Science High Energy Accelerator Research Organization (KEK) Tsukuba Ibaraki 305-0801 Japan Neutron Scattering Division Oak Ridge National Laboratory (ORNL) Oak Ridge Tennessee 37831 USA TRIUMF Vancouver British Columbia V6T 2A3 Canada ISIS Neutron and Muon Source Science and Technology Facilities Council Rutherford Appleton Laboratory Didcot OX11 0QX United Kingdom Department of Physics National Cheng Kung University Tainan 70101 Taiwan National Synchrotron Radiation Research Center Hsinchu 300092 Taiwan Department of Physics University of Warwick Coventry CV4 7AL United Kingdom Institute of Physics Academia Sinica Taipei 115201 Taiwan Advanced Science Research Center Japan Atomic Energy Agency (JAEA) Tokai Ibaraki 319-1195 Japan

β-Mn-type family alloys Mn3TX (T=Co, Rh, and Ir; X=Si and Ge) have a three-dimensional antiferromagnetic (AF) corner-shared triangular network, i.e., the hyperkagome lattice. The antiferromagnet Mn3RhSi shows magnetic short-range order over a wide temperature range of approximately 500 K above the Néel temperature TN of 190 K. In this family of compounds, as the lattice parameter decreases, the long-range magnetic ordering temperature decreases. Mn3CoSi has the smallest lattice parameter and the lowest TN in the family. The quantum critical point (QCP) from AF to the quantum paramagnetic state is expected near a cubic lattice parameter of 6.15 Å. Although the Néel temperature of Mn3CoSi is only 140 K, the emergence of the quantum critical behavior in Mn3CoSi is discussed. We study how the magnetic short-range order appears in Mn3CoSi by using neutron scattering, μSR, and bulk characterization such as specific heat capacity. According to the results, the neutron scattering intensity of the magnetic short-range order in Mn3CoSi does not change much at low temperatures from that of Mn3RhSi, although the μSR short-range order temperature of Mn3CoSi is largely suppressed to 240 K from that of Mn3RhSi. Correspondingly, the volume fraction of the magnetic short-range order regions, as shown by the initial asymmetry drop ratio of μSR above TN, also becomes small. Instead, the electronic-specific heat coefficient γ of Mn3CoSi is the largest in this Mn3TSi system, possibly due to the low-energy spin fluctuation near the quantum critical point.

关键词： Critical phenomena Exotic phases of matter Magnetic order Magnetism Phase diagrams Phase transitions Quantum phase transitions

来源：评论

学校读者我要写书评

暂无评论

Thermodynamic considerations of same-metal electrodes in an asymmetric cell

引用

materials Theory 2019年第1期3卷 1-15页

作者： M. H. Braga N. S. Grundish A. J. Murchison J. B. Goodenough Texas Materials Institute and the Materials Science and Engineering Program The University of Texas at Austin Austin USA LAETA Engineering Physics Department Engineering Faculty University of Porto Porto Portugal

An electrochemical cell contains three open thermodynamic systems that, in dynamic equilibrium, equalize their electrochemical potentials with that of their surrounding by forming an electric-double-layer-capacitor at the interface of the electrolyte with each of the two electrodes. Since the electrode/electrolyte interfaces are heterojunctions, the electrochemical potentials or Fermi levels of the two materials that contact the electrolyte at the two electrodes determine the voltage of a cell. The voltage is the sum of the voltages of the two interfacial electric-double-layer capacitors at the two electrode/electrolyte interfaces. A theoretical analysis of the thermodynamics that gives a quantitative prediction of the observed voltages in an asymmetric cell with an S8 relay at the positive electrode is provided. In addition, new discharge data and an X-ray photoelectron spectroscopy analysis of the lithium plated on the positive electrode of a discharged cell is presented. Ab initio, DFT methods were used to calculate the band structure and surface-state energies of the crystalline S8 solid sulfur relay. The theoretical exposition of the thermodynamics of the operative driving force of the chemical reactions in an electrochemical cell demonstrate that our initial experimental data and conclusions are valid. Other reported observations of lithium plating on the positive electrode, observations that were neither exploited nor their origins specified, are also cited.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Correction to“Spatiotemporally dynamic therapy with shape-adaptive drug-gel for the improvement of tissue regeneration with ordered structure”[***.8(2022)165-176]

引用

Bioactive materials 2023年第2期20卷 318-318页

作者： Ya-nan Fu Yongsan Li Bo Deng Yingjie Yu Fang Liu Lei Wang Guang Chen Lei Tao Yen Wei Xing Wang Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing Laboratory of Biomedical MaterialsBeijing University of Chemical TechnologyBeijing100029China Department of Oncology of Integrative Chinese and Western Medicine China-Japan Friendship HospitalBeijing100029China Institute of Translational Medicine Shenzhen Second People’s HospitalThe First Affiliated Hospital of Shenzhen UniversityHealth Science CenterShenzhen518035China The Key Laboratory of Bioorganic Phosphorus Chemistry&Chemical Biology(Ministry of Education) Department of ChemistryTsinghua UniversityBeijing100084China

The authors regret that inadvertent errors were observed in *** corrected representative images are now *** correction does not influence any of the experimental results and discussion or the conclusions reported in t... 详细信息

关键词： correction ordered sincerely

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：