检索结果-内蒙古大学图书馆

Elucidating the role of Nb on the long-term uniform corrosion of FeCrAl alloy in a simulated PWR environment

Corrosion science 2025年 255卷

作者： Donghai Du Yun Huang Tenghong Lin Zhaolin Shi Huayan Hu Huiqiu Deng Miao Song Hui Wang Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201800 China Institute of Clean Energy Yangtze River Delta Research Institute Northwestern Polytechnical University Taicang 215400 China School of Physics and Electronics Hunan University Changsha 410082 China School of Nuclear Science and Engineering Shanghai Jiao Tong University Shanghai 200240 China College of Materials Science and Engineering Sichuan University Chengdu 610065 China

As a nuclear fuel cladding candidate alloy, Nb-doped FeCrAl alloys demonstrate superior high-temperature strength compared to their Nb-free counterparts, attributed to a combination of solid solution strengthening and precipitation strengthening by Fe 2 Nb-type Laves phase particles. However, prolonged exposure reveals a trade-off, as Nb-doped FeCrAl alloys exhibit reduced corrosion resistance. This manifests as greater weight loss, a thicker inner oxide layer, more severe spallation, and pronounced local corrosion along grain boundaries, which will pose significant risks to the integrity of fuel claddings. To understand these phenomena, a comprehensive study combining advanced microscopic characterization and first-principles calculations was conducted. Results indicate that Nb promotes the outward diffusion of Fe ions, accelerating oxide layer growth and compromising corrosion resistance. Paradoxically, Fe 2 Nb-type Laves phase particles, provide localized protection to the underlying metal and significantly mitigate intergranular corrosion. These findings provide critical insights into the dual role of Nb in FeCrAl alloys, offering guidance for optimizing alloy design for applications in light water reactors and advanced nuclear reactors.

关键词： Intergranular corrosion Mass change nuclear fuel cladding Oxide film Spallation

来源：评论

学校读者我要写书评

暂无评论

Constraints on the photon polarisation in b → sγ transitions using Bs0→ ϕe⁺e⁻ decays

引用

Journal of High Energy physics 2025年第3期2025卷 1-23页

作者： Aaij, R. Abdelmotteleb, A.S.W. Abellan Beteta, C. Abudinén, F. Ackernley, T. Adefisoye, A.A. Adeva, B. Adinolfi, M. Adlarson, P. Agapopoulou, C. Aidala, C.A. Ajaltouni, Z. Akar, S. Akiba, K. Albicocco, P. Albrecht, J. Alessio, F. Alexander, M. Aliouche, Z. Alvarez Cartelle, P. Amalric, R. Amato, S. Amey, J.L. Amhis, Y. An, L. Anderlini, L. Andersson, M. Andreianov, A. Andreola, P. Andreotti, M. Andreou, D. Anelli, A. Ao, D. Archilli, F. Argenton, M. Arguedas Cuendis, S. Artamonov, A. Artuso, M. Aslanides, E. Ataíde Da Silva, R. Atzeni, M. Audurier, B. Bacher, D. Bachiller Perea, I. Bachmann, S. Bachmayer, M. Back, J.J. Baladron Rodriguez, P. Balagura, V. Baldini, W. Balzani, L. Bao, H. Baptista de Souza Leite, J. Barbero Pretel, C. Barbetti, M. Barbosa, I.R. Barlow, R.J. Barnyakov, M. Barsuk, S. Barter, W. Bartolini, M. Bartz, J. Basels, J.M. Bashir, S. Bassi, G. Batsukh, B. Battista, P.B. Bay, A. Beck, A. Becker, M. Bedeschi, F. Bediaga, I.B. Behling, N.A. Belin, S. Bellee, V. Belous, K. Belov, I. Belyaev, I. Benane, G. Bencivenni, G. Ben-Haim, E. Berezhnoy, A. Bernet, R. Bernet Andres, S. Bertolin, A. Betancourt, C. Betti, F. Bex, J. Bezshyiko, Ia. Bhom, J. Bieker, M.S. Biesuz, N.V. Billoir, P. Biolchini, A. Birch, M. Bishop, F.C.R. Bitadze, A. Bizzeti, A. Blake, T. Blanc, F. Blank, J.E. Blusk, S. Bocharnikov, V. Boelhauve, J.A. Boente Garcia, O. Boettcher, T. Bohare, A. Boldyrev, A. Bolognani, C.S. Bolzonella, R. Bondar, N. Bordelius, A. Borgato, F. Borghi, S. Borsato, M. Borsuk, J.T. Bouchiba, S.A. Bovill, M. Bowcock, T.J.V. Boyer, A. Bozzi, C. Brea Rodriguez, A. Breer, N. Brodzicka, J. Brossa Gonzalo, A. Brown, J. Brundu, D. Buchanan, E. Buonaura, A. Buonincontri, L. Burke, A.T. Burr, C. Butter, J.S. Buytaert, J. Byczynski, W. Cadeddu, S. Cai, H. Caillet, A.C. Calabrese, R. Calderon Ramirez, S. Calefice, L. Cali, S. Calvi, M. Calvo Gomez, M. Camargo Magalhaes, P. Cambon Bouzas, J.I. Campana, P. Campora Perez, D.H. Campoverde Quezada, A.F. Capelli, S. Capriotti, L. Caravaca-Mora, R. Carbone, A. Carcedo Salgad School of Physics and Astronomy Monash University Melbourne Australia Centro Brasileiro de Pesquisas Físicas (CBPF) Rio de Janeiro Brazil Universidade Federal do Rio de Janeiro (UFRJ) Rio de Janeiro Brazil Department of Engineering Physics Tsinghua University Beijing China Institute Of High Energy Physics (IHEP) Beijing China School of Physics State Key Laboratory of Nuclear Physics and Technology Peking University Beijing China University of Chinese Academy of Sciences Beijing China Institute of Particle Physics Central China Normal University Hubei Wuhan China Consejo Nacional de Rectores (CONARE) San Jose Costa Rica Université Savoie Mont Blanc CNRS IN2P3-LAPP Annecy France Université Clermont Auvergne CNRS/IN2P3 LPC Clermont-Ferrand France Université Paris-Saclay Centre d’Etudes de Saclay (CEA) IRFU Saclay France Gif-Sur-Yvette France Aix Marseille Univ CNRS/IN2P3 CPPM Marseille France Université Paris-Saclay CNRS/IN2P3 IJCLab Orsay France Laboratoire Leprince-Ringuet CNRS/IN2P3 Ecole Polytechnique Institut Polytechnique de Paris Palaiseau France LPNHE Sorbonne Université Paris Diderot Sorbonne Paris Cité CNRS/IN2P3 Paris France I. Physikalisches Institut RWTH Aachen University Aachen Germany Universität Bonn — Helmholtz-Institut für Strahlen und Kernphysik Bonn Germany Fakultät Physik Technische Universität Dortmund Dortmund Germany Physikalisches Institut Albert-Ludwigs-Universität Freiburg Freiburg Germany Max-Planck-Institut für Kernphysik (MPIK) Heidelberg Germany Physikalisches Institut Ruprecht-Karls-Universität Heidelberg Heidelberg Germany School of Physics University College Dublin Dublin Ireland INFN Sezione di Bari Bari Italy INFN Sezione di Bologna Bologna Italy INFN Sezione di Ferrara Ferrara Italy INFN Sezione di Firenze Firenze Italy INFN Laboratori Nazionali di Frascati Frascati Italy INFN Sezione di Genova Genova Italy INFN Sezione di Milano Milano Italy INFN Sezione di Milano-Bicocca Milano Italy INFN

An angular analysis of the Bs0→ ϕe+e− decay is performed using the proton-proton collision dataset collected between 2011 and 2018 by the LHCb experiment, corresponding to an integrated luminosity of 9 fb−1 at centre... 详细信息

An angular analysis of the Bs0→ ϕe⁺e⁻ decay is performed using the proton-proton collision dataset collected between 2011 and 2018 by the LHCb experiment, corresponding to an integrated luminosity of 9 fb⁻¹ at centre-of-mass energies of 7, 8 and 13 TeV. The analysis is performed in the very low dielectron invariant mass-squared region between 0.0009 and 0.2615 GeV²/c⁴. The longitudinal polarisation fraction of the ϕ meson is measured to be less than 11.5% at 90% confidence level. The ATReCP observable, which is related to the lepton forward-backward asymmetry, is measured to be 0.116 ± 0.155 ± 0.006, where the first uncertainty is statistical and the second systematic. The transverse asymmetries, AT2 and ATImCP, which are sensitive to the virtual photon polarisation, are found to be −0.045 ± 0.235 ± 0.014 and 0.002 ± 0.247 ± 0.016, respectively. The results are consistent with Standard Model predictions. © The Author(s) 2025.

关键词： B physics Flavour Changing Neutral Currents Hadron-Hadron Scattering Rare Decay

来源：评论

学校读者我要写书评

暂无评论

Wet-adhesive and antibacterial PAH-TPP coacervates with self-mineralizing capability for cranial flap fixation

引用

Bioactive Materials 2025年 52卷 1-16页

作者： Weicheng Chen Jiaxu Shi Dachuan Liu Kai Lu Jianlong Fu Jingxi Xu Huan Wang Zhiliang Guo Li Dong Di Li Xin Li Miodrag J. Lukic Wei Xia Song Chen Bin Li Medical 3D Printing Center Orthopedic Institute Department of Orthopedic Surgery The First Affiliated Hospital School of Basic Medical Sciences MOE Key Laboratory of Geriatric Diseases and Immunology Suzhou Medical College Soochow University Suzhou Jiangsu 215000 PR China Department of Orthopaedic Surgery Hai'an People's Hospital Nantong Jiangsu 226600 PR China School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Yantai Shandong 264005 PR China Laboratory of Physics “Vinca” Institute of Nuclear Sciences National Institute of the Republic of Serbia University of Belgrade Mike Petrovica Alasa 12-14 Vinca Belgrade 11351 Serbia Applied Materials Science Department of Materials Science and Engineering Uppsala University Uppsala 75105 Sweden

Repositioning and securing the cranial bone flap after craniotomy remain significant challenges in neurosurgery. Traditional fixation methods often suffer from weak mechanical strength, bioinertness, limited osteogenic capacity, and a lack of antibacterial properties, complicating clinical outcomes. Recent medical adhesives offer superior fixation but face significant limitations in cranial bone applications. In this study, we explored the application of PAH (Poly (allylamine) hydrochloride)-TPP (Tripolyphosphate) coacervate (PT) as a bone adhesive. The PT coacervate demonstrated excellent anti-swelling (anti-swelling ratio less than 1 %), self-healing, and injectable properties, as well as exceptional shape adaptability and cytocompatibility. Adhesion tests revealed its outstanding adhesion (99.06 ± 11.76 kPa for lap shear and 121.42 ± 16.73 kPa for end to end), long-term durability, and tunable adhesion strength. Furthermore, the coacervate demonstrated broad-spectrum antibacterial activity against both Gram-positive and Gram-negative bacteria (antibacterial rate more than 90 %), with mechanistic studies revealing promising strategies to address localized and systemic drug-resistant infections. Additionally, the coacervate's self-mineralizing properties significantly enhanced its osteogenic performance. In vivo studies confirmed its effective fixation, robust antibacterial activity, and improved osteogenesis, underscoring its suitability for cranial bone flap repositioning and fixation after craniotomy. In summary, this coacervate adhesive offers a promising therapeutic solution for addressing the challenges of cranial flap fixation in neurosurgery.

关键词： Coacervate Wet-adhesive Cranial flap fixation Self-mineralizing Antibacterial property

来源：评论

学校读者我要写书评

暂无评论

Dark matter direct search sensitivity of the PandaX-4T experiment

引用

science China(physics,Mechanics & Astronomy) 2019年第3期62卷 49-57页

作者： HongGuang Zhang Abdusalam Abdukerim Wei Chen Xun Chen YunHua Chen XiangYi Cui BinBin Dong DeQing Fang ChangBo Fu Karl Giboni Franco Giuliani LinHui Gu XuYuan Guo ZhiFan Guo Ke Han ChangDa He ShengMing He Di Huang XingTao Huang Zhou Huang Peng Ji XiangDong Ji YongLin Ju ShaoLi Li Yao Li Heng Lin HuaXuan Liu JiangLai Liu YuGang Ma YaJun Mao KaiXiang Ni JinHua Ning XiangXiang Ren Fang Shi AnDi Tan AnQing Wang Cheng Wang HongWei Wang Meng Wang QiuHong Wang SiGuang Wang XiuLi Wang XuMing Wang Zhou Wang MengMeng Wu ShiYong Wu JingKai Xia MengJiao Xiao PengWei Xie BinBin Yan JiJun Yang Yong Yang ChunXu Yu JuMin Yuan JianFeng Yue Dan Zhang Tao Zhang Li Zhao QiBin Zheng JiFang Zhou Ning Zhou XiaoPeng Zhou Shanghai Key Laboratory for Particle Physics and Cosmology Institute of Nuclear and Particle Physics (INPC) (INPC) and School of Physics and AstronomyShanghai Jiao Tong University School of Physics and Technology Xinjiang University Shanghai Key Laboratory for Particle Physics and Cosmology Institute of Nuclear and Particle Physics (INPC) and School of Physics and AstronomyShanghai Jiao Tong University Yalong River Hydropower Development Company Ltd. Shanghai Institute of Applied Physics Chinese Academy of Sciences School of Mechanical Engineering Shanghai Jiao Tong University School of Physics and Key Laboratory of Particle Physics and Particle Irradiation(MOE)(MOE) Shandong University School of Physics Nankai University Tsung-Dao Lee Institute School of Physics Peking University Department of Physics University of Maryland College Park School of Physics and Key Laboratory of Particle Physics and Particle Irradiation(MOE) Shandong University Center of High Energy Physics Peking University School of Medical Instrument and Food Engineering University of Shanghai for Science and Technology

The Panda X-4T experiment, a 4-ton scale dark matter direct detection experiment, is being planned at the China Jinping Underground Laboratory. In this paper we present a simulation study of the expected background in this experiment. In a 2.8-ton fiducial mass and the signal region between 1-10 keV electron equivalent energy, the total electron recoil background is found to be 4.9 × 10^(-5) kg^(-1) d^(-1) keV^(-1). The nuclear recoil background in the same region is 2.8 × 10^(-7) kg^(-1) d^(-1) keV^(-1). With an exposure of 5.6 ton-years, the sensitivity of Panda X-4 T could reach a minimum spin-independent dark matter-nucleon cross section of 6 × 10^(-48) cm^2 at a dark matter mass of 40 Ge V/c^2.

关键词： dark matter WIMPs direct detection xenon

来源：评论

学校读者我要写书评

暂无评论

Deep potentials for materials science

材料展望（英文）

引用

材料展望（英文） 2022年第2期 89-115页

作者： Tongqi Wen Linfeng Zhang Han Wang Weinan E David J Srolovitz Department of Mechanical Engineering The University of Hong KongHong KongHong Kong Special Administrative Region of China DP Technology BeijingPeople's Republic of China AI for Science Institute BeijingPeople's Republic of China Laboratory of Computational Physics Institute of Applied Physics and Computational MathematicsBeijingPeople's Republic of China HEDPS CAPTCollege of EngineeringPeking UniversityBeijingPeople's Republic of China AI for Science Institute BeijingPeople's Republic of China School of Mathematical Sciences Peking UniversityBeijingPeople's Republic of China Department of Mathematics and Program in Applied and Computational Mathematics Princeton UniversityPrincetonNJUnited States of America Department of Mechanical Engineering The University of Hong KongHong KongHong Kong Special Administrative Region of China International Digital Economy Academy(IDEA) ShenzhenPeople's Republic of China

To fill the gap between accurate(and expensive)ab initio calculations and efficient atomistic simulations based on empirical interatomic potentials,a new class of descriptions of atomic interactions has emerged and been widely applied;*** learning potentials(MLPs).One recently developed type of MLP is the deep potential(DP)*** this review,we provide an introduction to DP methods in computational materials *** theory underlying the DP method is presented along with a step-by-step introduction to their development and *** also review materials applications of DPs in a wide range of materials *** DP Library provides a platform for the development of DPs and a database of extant *** discuss the accuracy and efficiency of DPs compared with ab initio methods and empirical potentials.

关键词： deep potential atomistic simulation machine learning potential neural network

来源：评论

学校读者我要写书评

暂无评论

Erratum:A Search for Solar Axions and Anomalous Neutrino Magnetic Moment with the Complete PandaX-Ⅱ Data[***.38(2021)011301]

引用

Chinese physics Letters 2021年第10期38卷 71-72页

作者： Xiaopeng Zhou Xinning Zeng Xuyang Ning Abdusalam Abdukerim Wei Chen Xun Chen Yunhua Chen Chen Cheng Xiangyi Cui Yingjie Fan Deqing Fang Changbo Fu Mengting Fu Lisheng Geng Karl Giboni Linhui Gu Xuyuan Guo Ke Han Changda He Di Huang Yan Huang Yanlin Huang Zhou Huang Xiangdong Ji Yonglin Ju Shuaijie Li Huaxuan Liu Jianglai Liu † Xiaoying Lu Wenbo Ma Yugang Ma Yajun Mao Yue Meng Kaixiang Ni Jinhua Ning Xiangxiang Ren Changsong Shang Guofang Shen Lin Si Andi Tan Anqing Wang Hongwei Wang Meng Wang Qiuhong Wang Siguang Wang Wei Wang Xiuli Wang Zhou Wang Mengmeng Wu Shiyong Wu Weihao Wu Jingkai Xia Mengjiao Xiao Pengwei Xie Binbin Yan Jijun Yang Yong Yang Chunxu Yu Jumin Yuan Ying Yuan Dan Zhang Tao Zhang Li Zhao Qibin Zheng Jifang Zhou Ning Zhou INPAC School of Physics and AstronomyShanghai Jiao Tong Universityand Shanghai Key Laboratory for Particle Physics and CosmologyShanghai 200240China School of Physics Beihang UniversityBeijing 100191China Shanghai Jiao Tong University Sichuan Research Institute Chengdu 610213China Yalong River Hydropower Development Company Ltd.288 Shuanglin RoadChengdu 610051China School of Physics Sun Yat-Sen UniversityGuangzhou 510275China Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghai 200240China School of Physics Nankai UniversityTianjin 300071China Key Laboratory of Nuclear Physics and Ion-Beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China School of Physics Peking UniversityBeijing 100871China International Research Center for Nuclei and Particles in the Cosmos&Beijing Key Laboratory of Advanced Nuclear Materials and Physics Beihang UniversityBeijing 100191China School of Medical Instrument and Food Engineering University of Shanghai for Science and TechnologyShanghai 200093China Department of Physics University of MarylandCollege ParkMaryland 20742USA School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China School of Physics and Key Laboratory of Particle Physics and Particle Irradiation(MOE) Shandong UniversityJinan 250100China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China Shanghai Advanced Research Institute Chinese Academy of SciencesShanghai 201210China Center for High Energy Physics Peking UniversityBeijing 100871China

In our published letter,[1]we have identified a minor error in Figs.2 and ***,we have 2111 events in these two plots with 646,249,382,and 834 events in Run 9(20.0 ton·day),Run 10(19.4 ton·day),Run 11–1(24.2 ton·day),and Run 11–2(37.1 ton·day).The mistake is due to an incorrect application of a small energy non-linearity(known as the BLS non-linearity)in making plots,but has no impact to the final *** 2 and 3 are now updated in this note.

关键词： letter error

来源：评论

学校读者我要写书评

暂无评论

Effect of helium ion irradiation on tungsten recrystallization 17

Effect of helium ion irradiation on tungsten recrystallizati...

引用

17th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2019

作者： Guo, Wangguo Wang, Shiwei Xu, Ke Zhu, Yida Wang, Xin-Xin Cheng, Long Yuan, Yue Fu, Engang Guo, Liping De Temmerman, Gregory Lu, Guang-Hong School of Physics Beihang University Beijing100191 China Beijing Key Laboratory of Advanced Nuclear Materials and Physics Beihang University Beijing100191 China Lcp Institute of Applied Physics and Computational Mathematics Beijing100094 China School of Materials Science and Engineering Beihang University Beijing100191 China State Key Laboratory of Nuclear Physics and Technology School of Physics Peking University Beijing100871 China School of Physics and Technology Wuhan University Wuhan430072 China ITER Organization Route de Vinon sur Verdon CS90 046 StPaul-Lez Durance cedex13067 France

Understanding of the recrystallization kinetics of tungsten plasma-facing materials under fusion-related conditions is of crucial importance to estimate the material lifetime and the evolution of the material properties such as strength/hardness and thermal shock resistance. High-energy helium ion irradiation was used to study the effect of helium produced by neutron irradiation and tritium decay on tungsten recrystallization. Results indicate that low-concentration helium at about 40 appm retards the tungsten recrystallization without pronounced helium bubble formation. For a higher concentration helium, peak value at about 7700 appm, substantial subgrains and recrystallized nuclei formed but the grain boundary migration was strongly impeded by helium clusters/bubbles, eventually causing grain engulfment. The impurity drag effect of helium atoms on grain boundary migration is considered to be the dominant mechanism causing the retarding effect, as demonstrated by molecular dynamics simulations. This work indicates a potentially strong retarded recrystallization of tungsten, taking into account the bulk helium production during fusion plasma operation. © 2020 The Royal Swedish Academy of sciences.

关键词： Recrystallization (metallurgy)

来源：评论

学校读者我要写书评

暂无评论

Experimental and Theoretical Insights on the Optical and Morphological Properties of Germanium Oxide Thin Films Deposited Via RF Magnetron Sputtering

SSRN

引用

SSRN 2022年

作者： Tüzemen, Ebru Şenadım Hopoğlu, Hicret Sarıtaş, Sevda Aydınoğlu, Hafize Seda Ertuğrul, Mehmet Maslov, Mikhail M. Kaya, Savaş Ungan, Fatih Gür, Emre Nanophotonics Research and Application Center Sivas Cumhuriyet University Sivas58140 Turkey Department of Physics Faculty of Science Sivas Cumhuriyet University Sivas58140 Turkey Faculty of Technology Department of Optical Engineering Sivas Cumhuriyet University Sivas58140 Turkey İspir Hamza Polat Vocatioanal School Ataturk University Erzurum Turkey Department of Medical Services and Techniques Program of Opticianry Vocational School of Healthcare Sivas Cumhuriyet University Sivas58140 Turkey Department of Electrical and Electronics Engineering Faculty of Engineering Atatürk University Erzurum25240 Turkey Department of Condensed Matter Physics National Research Nuclear University "MEPhI" Kashirskoe Shosse 31 Moscow115409 Russia Health Services Vocational School Department of Pharmacy Sivas Cumhuriyet University Sivas58140 Turkey Department of Physics Faculty of Science Ataturk University Erzurum25240 Turkey

In this study, the optical and morphological properties of germanium oxide (GeO2) thin films have been investigated by experimental and theoretical methods. The films were produced by reactive radio frequency magnetron sputtering (RFMS) under varying oxygen partial pressures ratio to the total pressure, 2%, 4%, 6%, 8%. The optical and structural properties of the films grown have been studied experimentally and theoretical calculations have been presented using density functional theory (DFT). As the x-ray diffraction (XRD) analysis is considered, Ge (111) peak has been observed in the films produced at 2% oxygen partial pressure ratio compared to all the other films has determined to be amorphous. Except for 2% film, the other films were annealed at 900oC, and as a result, GeO2 (101), GeO2 (110), GeO2 (102) and GeO2 (111) peaks were observed. The 2% film was annealed at different annealing temperatures (800, 850, 900, 950oC). As a result, the crystal property has changed compared to the others. It was found that the optical properties of the films grown are strongly dependent on the O2 pressures used. Although the 8% film has a fairly sharp absorption edge, the others are bad. The energy band gap increased with increasing oxygen. After annealing at 900oC, the absorption edge of the films showed a sharp behavior except 4%. There are Ge-O-Ge antisymmetric stretching peaks appeared at 861.51 cm-1, 949.94 cm-1 and symmetric stretching of hexagonal peaks at 516.34 cm-1, 546.29 cm-1, 581.95 cm-1. The results of Density Functional Theory calculations are in good agreement with experimental observations. © 2022, The Authors. All rights reserved.

关键词： Optical properties

来源：评论

学校读者我要写书评

暂无评论

Effects of Helium massive gas injection level on disruption mitigation on EAST

arXiv

引用

arXiv 2021年

作者： Zafar, Abdullah Zhu, Ping Ali, Ahmad Zeng, Shiyong Li, Haolong CAS Key Laboratory of Geospace Environment Department of Engineering and Applied Physics University of Science and Technology of China Hefei230026 China International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic Engineering Huazhong University of Science and Technology Wuhan Hubei430074 China Department of Engineering Physics University of Wisconsin-Madison MadisonWI53706 United States Pakistan Tokamak Plasma Research Institute Islamabad3329 Pakistan CAS Key Laboratory of Geospace Environment School of Nuclear Science and Technology University of Science and Technology of China Hefei230026 China

In this study, NIMROD simulations are performed to investigate the effects of massive Helium gas injection level on the induced disruption on EAST tokamak. It is demonstrated in simulations that two different scenarios of plasma cooling (complete cooling and partial cooling) take place for different amounts of injected impurities. For the impurity injection above a critical level, a single MHD activity is able to induce a complete core temperature collapse. For impurity injection below the critical level, a series of multiple minor disruptions occur before the complete thermal quench (TQ). Copyright © 2021, The Authors. All rights reserved.

关键词： Cooling

来源：评论

学校读者我要写书评

暂无评论

Synthesis, characterization, and gas sensing properties against NO2 oxidation gas of (SnO2)1-x(Ag2O)x nanocomposite thin film

引用

AIP Conference Proceedings 2024年第1期2922卷

作者： Nada Mohammed Abas Anwar Ali Baqer Ashwaq T. Dahham Naif Mohammed Al-Hada Physics Department College of Science for Women University of Baghdad Baghdad Iraq Physics Department Faculty of Applied Science Thamar University Dhamar 87246 Yemen Shandong Key Laboratory of Biophysics Institute of Biophysics Dezhou University Dezhou 253023 China Nuclear Energy Programme School of Chemical and Energy Engineering Faculty of Engineering Universiti Teknologi Malaysia Johor Bahru 81310 Malaysia

This paper describes the creation of (SnO2)1-x(Ag2O)x nanocomposites films (x=0,0.2, and 0.4 wt) that are n-type gas-sensitive semiconductors that were made using the pulse laser deposition (PLD) process at room temperature (RT) on glass substrates. XRD, EDX, FESEM, and AFM are a used to explore the structural, compositional, and morphological characteristics of these films. In order to demonstrate optical properties and analyze the band gap energy of samples, a UV-vis spectrophotometer is used. The band gap of (SnO2)1-x(Ag2O)x nanocomposites noticed decrease ranging from 3.76 to 3.49 eV with increasing amount of Ag2O. These films’ sensitivity and selectivity to the oxidizing gas NO2 are an evaluated at various temperatures. At a low operating temperature of 200 °C, a (SnO2)0.8(Ag2O)0.2 nanocomposites film exhibits extremely high responses values at 73.3% to NO2 compared to pure SnO2 (four orders of magnitude in the value of (Rg − Ra)/Ra; Rg and Ra are the resistance in NO2 and in air, respectively). It also exhibits excellent selectivity for NO2 gas. The impact of Ag2O on these films’ sensing properties toward NO2 is an examined.

关键词：

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：