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2021 7th International Forum on Manufacturing technology and Engineering Materials, IFEMMT 2021

作者： Chen, Haida Chen, Bin Li, Jie Yan, Hengfeng Cheng, Liying Chen, Jimin Zeng, Yong Institute of Laser Engineering Faculty of Materials and Manufacturing Beijing University of Technology Beijing China Beijing Engineering Research Center of 3D Printing for Digital Medical Health Beijing China Beijing Intl. Science and Technology Cooperation Base of 3D Printing for Digital Medical Health Beijing China Key Laboratory of Trans-scale Laser Manufacturing Technology Ministry of Education Beijing China KANGSHUO Electric Group Co. Ltd. Beijing China

Ceramic stereolithography (SLA) was used to fabricate a ceramic. A ceramic 3d printer based on the SLA method was manufactured. In order to systematically and effectively evaluate the role of the parameters in the ceramic green body, the orthogonal test method is introduced. The placement position of the parts, the laser repetition frequency, and scanning speed are used as independent variables to be studied. The final result shows that when laser power is set, the relationship between the hardness of the part and the position of the part is not evident. The speed of laser scanning greatly influences the mechanical properties of the parts. Alumina parts with smooth surface and dense microstructure were obtained after debinding and sintering processes. © Published under licence by IOP Publishing Ltd.

关键词： Sintering

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Superhydrophobic Surface Modification of 3d-Printed ZrO 2 Ceramics: Structural design and Wear Resistance Investigation

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Ceramics International 2025年

作者： Qingfeng He Lei Wang Lu Chang Jimin Chen Yong Zeng Beijing University of Technology School of Physics and Optoelectronic Engineering Beijing 100124 Peoples R China Beijing Engineering Research Center of 3D Printing for Digital Medical Health Beijing 100124 Peoples R China Institute of Matter Science (Huairou) Beijing University of Technology

In this study, zirconia (ZrO 2 ) ceramics exhibiting exceptional mechanical properties were fabricated utilizing vat photopolymerization (VPP) 3d printing technology. Subsequent surface modification was conducted to convert the material from a hydrophilic to a superhydrophobic state. An inverted triangle pyramid structural model was devised to safeguard the superhydrophobic surface by means of its architectural design, culminating in the development of wear-resistant superhydrophobic ZrO 2 ceramics. Comprehensive investigations were conducted into process optimization, microstructural characteristics, mechanical attributes, hydrophobicity, and tribological properties. The findings revealed that utilizing BYK-111 as a dispersant at a concentration of 2.5 wt.% yields optimal rheological behavior of the ZrO 2 ceramics slurry, conducive to 3d printing applications. At a sintering temperature of 1550 °C, the ZrO 2 ceramics attained a density of 99.3%, while its Vickers hardness and flexural strength peaked at 1465.02 HV and 641.87 MPa, respectively. The findings revealed that the surface contact angle of the modified ceramics specimen attained 157 , signifying outstanding superhydrophobic characteristics. To preserve its superhydrophobic microstructure from abrasion-induced damage, a three-dimensional architecture featuring minute inverted pyramids was engineered to shield the superhydrophobic surface. To investigate the impact of varying inverted pyramid geometries and dimensions on wear resistance, a range of alternative structural configurations were devised for wear testing. The wear resistance of ceramics with these distinct structural forms was assessed by comparing their contact angles. This research offers an innovative, cost-effective, and efficient approach for fabricating superhydrophobic materials within the ceramics sector, thereby improving their wear resistance.

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A first attempt of inferior vena cava filter successfully guided by a mixed-reality system: a case report

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Journal of Geriatric Cardiology 2019年第7期16卷 575-577页

作者： Hang ZHU Yao LI Chi WANG Qiu-Yang LI Zheng-Yang XU Xin LI Abudureyimu Abudulitipujiang Ji-Xing PAN Er-Long FAN Jun GUO Yun-dai CHEN Department of Cardiology Chinese PLA General HospitalChina Department of Ultrasound Chinese PLA General HospitalChina Department of Radiology Chinese PLA General HospitalChina Visual 3D Medical Science and Technology Development CO.LLC

Pulmonary embolism(PE)is one of the fatal heart attacks,and lower limbs deep vein thrombosis(dVT)is the most common reason for *** vena cava filter(IVCF)implantation is a most prevention for *** it may carry a high risk of injury because of the radiation and contrast *** with nephrotic syndrome(NS)or some other renal diseases may prone to thrombosis due to the excretion of protein C and protein S ***,it is necessary to develop a new therapy without contrast ***-reality(MR)is a new technology as a guidance of inferior vena cava filter implantation exposed under no X-ray and required no contrast agent.

关键词： Inferior vena cava filter Mixed-reality technology Pulmonary embolism

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Magnesium cationic cue enriched interfacial tissue microenvironment nurtures the osseointegration of gamma-irradiated allograft bone

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Bioactive Materials 2022年第4期7卷 32-47页

作者： Wenhao Wang Jie Shen Yuan Meng Miaoman Ye Shaozhang Lin Qi Zhao Le Wang Kenneth M.C.Cheung Shuilin Wu Yufeng Zheng Xuanyong Liu Paul K.Chu Kelvin W.K.Yeung Zhi-Yong Zhang Translational Research Centre of Regenerative Medicine and 3D Printing of Guangzhou Medical University Guangdong Province Engineering Research Center for Biomedical EngineeringState Key Laboratory of Respiratory DiseaseThe Third Affiliated Hospital of Guangzhou Medical UniversityGuangzhou510150PR China Department of Orthopaedics and Traumatology The University of Hong KongHong Kong999077PR China Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma The University of Hong Kong Shenzhen HospitalShenzhen518053PR China Department of Orthopaedic Surgery The Third Affiliated Hospital of Guangzhou Medical UniversityGuangzhou510150PR China Shenzhen Key Laboratory of Spine Surgery Department of Spine SurgeryPeking University Shenzhen HospitalShenzhen518036PR China Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials Hubei Key Laboratory of Polymer MaterialsSchool of Materials&EngineeringHubei UniversityWuhan430062PR China Ministry of Education Key Laboratory for Advanced Ceramics and Machining Technology School of Materials Science&EngineeringTianjin UniversityTianjin300352PR China State Key Laboratory for Turbulence and Complex System Department of Materials Science and EngineeringCollage of EngineeringPeking UniversityBeijing100871PR China State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai200050PR China Department of Materials Science and Engineering City University of Hong KongHong Kong999077PR China

Regardless of the advancement of synthetic bone substitutes,allograft-derived bone substitutes still dominate in the orthopaedic circle in the treatments of bone ***,the stringent devitalization process jeopardizes their osseointegration with host bone and therefore prone to long-term ***,improving osseointegration and transplantation efficiency remains *** alteration of bone tissue microenvironment(TME)to facilitate osseointegration has been generally ***,the concept of exerting metal ionic cue in bone TME without compromising the mechanical properties of bone allograft is *** address this concern,an interfacial tissue microenvironment with magnesium cationc cue was tailored onto the gamma-irradiated allograft bone using a customized magnesium-plasma surface *** formation of the Mg cationic cue enriched interfacial tissue microenvironment on allograft bone was verified by the scanning ion-selective electrode *** cellular activities of human TERT-immortalized mesenchymal stem cells on the Mg-enriched grafts were notably *** the animal test,superior osseointegration between Mg-enriched graft and host bone was found,whereas poor integration was observed in the gamma-irradiated controls at 28 days ***,the bony in-growth appeared on magnesium-enriched allograft bone was significant *** mechanism possibly correlates to the up-regulation of integrin receptors in mesenchymal stem cells under modified bone TME that directly orchestrate the initial cell attachment and osteogenic differentiation of mesenchymal stem ***,our findings demonstrate the significance of magnesium cation modified bone allograft that can potentially translate to various orthopaedic procedures requiring bone augmentation.

关键词： Osseointegration Allograft bone Bone tissue microenvironment Bone-implant interface Magnesium

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technology Roadmap for Flexible Sensors

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ACS NANO 2023年第6期17卷 5211-5295页

作者： Luo, Yifei Abidian, Mohammad Reza Ahn, Jong-Hyun Akinwande, deji Andrews, Anne M. Antonietti, Markus Bao, Zhenan Berggren, Magnus Berkey, Christopher A. Bettinger, Christopher John Chen, Jun Chen, Peng Cheng, Wenlong Cheng, Xu Choi, Seon-Jin Chortos, Alex dagdeviren, Canan dauskardt, Reinhold H. di, Chong-an dickey, Michael d. duan, Xiangfeng Facchetti, Antonio Fan, Zhiyong Fang, Yin Feng, Jianyou Feng, Xue Gao, Huajian Gao, Wei Gong, Xiwen Guo, Chuan Fei Guo, Xiaojun Hartel, Martin C. He, Zihan Ho, John S. Hu, Youfan Huang, Qiyao Huang, Yu Huo, Fengwei Hussain, Muhammad M. Javey, Ali Jeong, Unyong Jiang, Chen Jiang, Xingyu Kang, Jiheong Karnaushenko, daniil Khademhosseini, Ali Kim, dae-Hyeong Kim, Il-doo Kireev, dmitry Kong, Lingxuan Lee, Chengkuo Lee, Nae-Eung Lee, Pooi See Lee, Tae-Woo Li, Fengyu Li, Jinxing Liang, Cuiyuan Lim, Chwee Teck Lin, Yuanjing Lipomi, darren J. Liu, Jia Liu, Kai Liu, Nan Liu, Ren Liu, Yuxin Liu, Yuxuan Liu, Zhiyuan Liu, Zhuangjian Loh, Xian Jun Lu, Nanshu Lv, Zhisheng Magdassi, Shlomo Malliaras, George G. Matsuhisa, Naoji Nathan, Arokia Niu, Simiao Pan, Jieming Pang, Changhyun Pei, Qibing Peng, Huisheng Qi, dianpeng Ren, Huaying Rogers, John A. Rowe, Aaron Schmidt, Oliver G. Sekitani, Tsuyoshi Seo, dae-Gyo Shen, Guozhen Sheng, Xing Shi, Qiongfeng Someya, Takao Song, Yanlin Stavrinidou, Eleni Su, Meng Sun, Xuemei Takei, Kuniharu Tao, Xiao-Ming Tee, Benjamin C. K. Thean, Aaron Voon-Yew Trung, Tran Quang Wan, Changjin Wang, Huiliang Wang, Joseph Wang, Ming Wang, Sihong Wang, Ting Wang, Zhong Lin Weiss, Paul S. Wen, Hanqi Xu, Sheng Xu, Tailin Yan, Hongping Yan, Xuzhou Yang, Hui Yang, Le Yang, Shuaijian Yin, Lan Yu, Cunjiang Yu, Guihua Yu, Jing Yu, Shu-Hong Yu, Xinge Zamburg, Evgeny Zhang, Haixia Zhang, Xiangyu Zhang, Xiaosheng Zhang, Xueji Zhang, Yihui Zhang, Yu Zhao, Siyuan Zhao, Xuanhe Zheng, Yuanjin Zheng, Yu-Qing Zheng, Zijian Zhou, Tao Zhu, Bowen Zhu, Ming Zhu, Rong Zhu, Yangzhi Zhu, Yong Zou, Guijin Chen, Xiaodong 08-03 Innovis Singapore 138634 Republic of Singapore Innovative Centre for Flexible Devices (iFLEX) School of Materials Science and Engineering Nanyang Technological University Singapore 639798 Singapore Department of Biomedical Engineering University of Houston Houston Texas 77024 United States School of Electrical and Electronic Engineering Yonsei University Seoul 03722 Republic of Korea Department of Electrical and Computer Engineering The University of Texas at Austin Austin Texas 78712 United States Microelectronics Research Center The University of Texas at Austin Austin Texas 78758 United States Department of Chemistry and Biochemistry California NanoSystems Institute and Department of Psychiatry and Biobehavioral Sciences Semel Institute for Neuroscience and Human Behavior and Hatos Center for Neuropharmacology University of California Los Angeles Los Angeles California 90095 United States Colloid Chemistry Department Max Planck Institute of Colloids and Interfaces 14476 Potsdam Germany Department of Chemical Engineering Stanford University Stanford California 94305 United States Laboratory of Organic Electronics Department of Science and Technology Campus Norrköping Linköping University 83 Linköping Sweden Wallenberg Initiative Materials Science for Sustainability (WISE) and Wallenberg Wood Science Center (WWSC) SE-100 44 Stockholm Sweden Department of Materials Science and Engineering Stanford University Stanford California 94301 United States Department of Biomedical Engineering and Department of Materials Science and Engineering Carnegie Mellon University Pittsburgh Pennsylvania 15213 United States Department of Bioengineering University of California Los Angeles Los Angeles California 90095 United States School of Chemistry Chemical Engineering and Biotechnology Nanyang Technological University Singapore 637457 Singapore Nanobionics Group Department of Chemical and Biological Engineering Monash University Clayton Australia 3800 Monash

Humans rely increasingly on sensors to address grand challenges and to improve quality of life in the era of digitalization and big data. For ubiquitous sensing, flexible sensors are developed to overcome the limitations of conventional rigid counterparts. despite rapid advancement in bench-side research over the last decade, the market adoption of flexible sensors remains limited. To ease and to expedite their deployment, here, we identify bottlenecks hindering the maturation of flexible sensors and propose promising solutions. We first analyze continued...challenges in achieving satisfactory sensing performance for real-world applications and then summarize issues in compatible sensor-biology interfaces, followed by brief discussions on powering and connecting sensor networks. Issues en route to commercialization and for sustainable growth of the sector are also analyzed, highlighting environmental concerns and emphasizing nontechnical issues such as business, regulatory, and ethical considerations. Additionally, we look at future intelligent flexible sensors. In proposing a comprehensive roadmap, we hope to steer research efforts towards common goals and to guide coordinated development strategies from disparate communities. Through such collaborative

关键词： soft materials mechanics engineering flexible electronics conformable sensors bioelectronics human-machine interfaces body area sensor networks technology translation sustainable electronics

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double deep Q-learning for Anti-saturation Attack Problem of Warship Group

Double Deep Q-learning for Anti-saturation Attack Problem of...

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digital Twins and Parallel Intelligence (dTPI), IEEE International Conference on

作者： Wei Li Gang Xiong Hao Tao Yunjun Han Fang Wang Xisong dong Zhen Shen State Key Laboratory for Management and Control of Complex Systems Institute of Automation Chinese Academy of Sciences School of Artificial Intelligence University of Chinese Academy of Sciences Beijing Engineering Research Center of Intelligent Systems and Technology Institute of Automation Guangdong Engineering Research Center of 3D Printing and Intelligent Manufacturing Cloud Computing Center Chinese Academy of Sciences China China Ship Development and Design Center Wuhan China School of Control Science and Engineering (CSE) Shandong University Jinan China Guangdong Engineering Research Center of 3D Printing and Intelligent Manufacturing Cloud Computing Center Chinese Academy of Sciences Dongguan China

Anti-saturation attack (ASA) strategy is vital for the survival of a warship group, and attracts the focus of many researchers. In this paper, the dynamics of ASA is formulated as a Markov decision Process (MdP) with an enhanced states space since those characters are involved, such as the formation and detection and interception areas of warship group. A reinforcement learning method (double deep Q-leaning, ddQN) is developed to solve the problem and deal with the curse of dimensionality whereby the cost-to-go value is calculated by a marine engagement simulation system. A heuristic defense algorithm guided by field expert knowledge is designed for comparison. The experimental results show that the ddQN method performs better in anti-saturation attack scenarios.

关键词： Industries Heuristic algorithms digital twin Conferences Knowledge based systems Reinforcement learning Markov processes

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medical Additive Manufacturing: From a Frontier technology to the Research and development of Products

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Engineering 2020年第11期6卷 1217-1221页

作者： Guixing Qiu Wenjiang ding Wei Tian Ling Qin Yu Zhao Lianmeng Zhang Jian Lu daijie Chen Guangyi Yuan Chengtie Wu Bingheng Lu Ruxu du Jimin Chen Mo Elbestawi Zhongwei Gu dichen Li Wei Sun Yuanjin Zhao Jie He dadi Jin Bin Liu Kai Zhang Jianmo Li Kam WLeong dewei Zhao dingjun Hao Yingfang Ao Xuliang deng Huilin Yang ShaoKeh Hsu Yingqi Chen Long Li Jianping Fan Guohui Nie Yun Chen Hui Zeng Wei Chen Yuxiao Lai Department of Orthopedics Peking Union Medical College HospitalChinese Academy of Medical Science 8 Peking Union Medical CollegeBejjing 100730.China National Engineering Research Center of Light Alloys Net Forming&State Key Laboratony of Metal Matrix Composite Shanghai Jiao Tong UniversityShanghai 200240China Notional Engineering Research Center of Mg Materials and Applicarions and School of Materials Science 8r Engineering.Shanghai Jlao Tong University Shanghai 200240China Department of Spine Surgery Beijing Jishuitan HospitalBeijing 100035China Center for Troanslational Medicine Research and Development Institute of Biomedical and Health EngineeringShenzhen Insitute of Advanced Technology.Chinese Academy of SciencesShenzhen 518055China Guangdong Engineering Laboratony of Biomaterials Additive Manufacturing Guangdong 518055China Musculoskeletal Research Laboratory of the Department of Orthopedics 8 Traumatology and Innovative Orthopedic Biomaterial and Drug Translational Research Laboratory Li Ka Shing Institute of Health SciencesThe Chinese University of Hong KongHong Kong 999077.China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Center for Advanced Structural Materials City University of Hong Kong Shenzhen Research InstiuteShenzhen 518057.China Hong Kong Branch of National Precious Metals Material Engineering Research Center Department of Material Science and EngineeringCity Untiversity of Hong KongHong Kong 999077.China Department of Mechanical Engineering ity Untiversity of Hong Kong.Hong Kong 9977 China School of Pharmacy.Shanghai Jiao Tong University Shanghai 200240China China State Instute of Pharmaceutical Industry Shanghai Institute of Pharmaceutical IndustryShonghai 201203China Shanghai Innovation Instinute for Materials Shanghai 200444.China State Key Laboratory of High-Performance Ceramies and Superfine Microstructure Shanghai Institute of CeramicsChinese Acadermy 0f SciencesShanghai 200050Ch

*** and development(R&d)and the challenges of raw materials for medical additive manufacturing Raw materials for medical additive manufacturing have a wide range of commonalities that are also seen in many other fields,making them an important basis in the field of three-dimensional(3d)*** and challenges related to material types,powder properties,formability,viscoelasticity,and so forth also share common *** example,many metal materials are used in the field of aviation,while metals,polymers,and inorganic materials are used in the field of *** most widely used materials in biomedicine are *** homogeneous and non-homogeneous composites are also available for 3d printing,and impose an additional challenge in additive manufacturing;the use of heterogeneous composites in 3d printing is particularly challenging.

关键词： composites printing additive

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Corrigendum to“Magnesium cationic cue enriched interfacial tissue microenvironment nurtures the osseointegration of gamma-irradiated allograft bone”[***.10C(April 2022)32-47]

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Bioactive Materials 2023年第2期20卷 165-165页

作者： Wenhao Wang Jie Shen Yuan Meng Miaoman Ye Shaozhang Lin Qi Zhao Le Wang Kenneth M.C.Cheung Shuilin Wu Yufeng Zheng Xuanyong Liu Paul K.Chu Kelvin W.K.Yeung Zhi-Yong Zhang Translational Research Centre of Regenerative Medicine and 3D Printing of Guangzhou Medical University Guangdong Province Engineering Research Center for Biomedical EngineeringState Key Laboratory of Respiratory DiseaseThe Third Affiliated Hospital of Guangzhou Medical UniversityGuangzhou510150PR China Department of Orthopaedics and Traumatology The University of Hong Kong999077Hong KongChina Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma The University of Hong Kong Shenzhen HospitalShenzhen518053PR China Department of Orthopaedic Surgery The Third Affiliated Hospital of Guangzhou Medical UniversityGuangzhou510150PR China Shenzhen Key Laboratory of Spine Surgery Department of Spine SurgeryPeking University Shenzhen HospitalShenzhen518036PR China Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials Hubei Key Laboratory of Polymer MaterialsSchool of Materials&EngineeringHubei UniversityWuhan430062PR China Ministry of Education Key Laboratory for Advanced Ceramics and Machining Technology School of Materials Science&EngineeringTianjin UniversityTianjin300352PR China State Key Laboratory for Turbulence and Complex System Department of Materials Science and EngineeringCollage of EngineeringPeking UniversityBeijing100871PR China State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai200050PR China Department of Materials Science and Engineering City University of Hong Kong999077Hong KongChina

The authors regret a mistake of funding numbers in the Acknowledgment Section failed to be corrected during proof *** is the corrected funding statement in Acknowledgment SECTION This work was supported by the National Natural science Foundation of China(NSFC)(Nos.81902189,81772354,82002303,31570980),Clinical Innovation Research Program of Guangzhou Regenerative Medicine and Health Guangdong Laboratory(2018GZR0201002),National Key Research and development Plan(2018YFC1105103).

关键词： NSFC statement enriched

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Publisher Correction: Global estimates on the number of people blind or visually impaired by cataract: a meta-analysis from 2000 to 2020

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Eye (London, England) 2024年第11期38卷 2229-2231页

作者： Konrad Pesudovs Hugh R. Taylor Tabassom Sedighi Rupert R. A. Bourne Shahina Pardhan Van Charles Lansingh John H. Kempen Ian Tapply Arthur G. Fernandes Maria Vittoria Cicinelli Alessandro Arrigo Nicolas Leveziel Serge Resnikoff Seth Flaxman Mukkharram M. Bikbov Tasanee Braithwaite Alain Bron Ching-Yu Cheng Monte A. del Monte Joshua R. Ehrlich Leon B. Ellwein david Friedman João M. Furtado Gus Gazzard Ronnie George M. Elizabeth Hartnett Jost B. Jonas Rim Kahloun Moncef Khairallah Rohit C. Khanna Janet Leasher Julie-Anne Little Vinay Nangia Michal Nowak Tunde Peto Pradeep Ramulu Fotis Topouzis Mitiadis Tsilimbaris Ya Xing Wang Ningli Wang Paul Svitil Briant Theo Vos Katrin Burkart Kaleb Coberly Xiaochen dai Stephen S. Lim Tomislav Mestrovic Ali H. Mokdad Christopher J. L. Murray Jaimie d. Steinmetz Awoke Misganaw Yohannes Habtegiorgis Abate Mohammad Abdollahi Mozhan Abdollahi Ayele Mamo Abebe Olumide Abiodun Richard Gyan Aboagye Woldu Aberhe Abrha Hasan Abualruz Hiwa Abubaker Ali Eman Abu-Gharbieh Salahdein Aburuz Tadele Girum Girum Adal Mesafint Molla Adane Isaac Yeboah Addo Qorinah Estiningtyas Sakilah Adnani Muhammad Sohail Afzal Muhammad Umair Shahin Aghamiri Bright Opoku Ahinkorah Aqeel Ahmad Sajjad Ahmad Ali Ahmadi Siamak Sabour Ayman Ahmed Haroon Ahmed Ahmad Samir Alfaar Abid Ali Syed Shujait Shujait Ali Awais Altaf Hubert Amu Emmanuel Manu Sofia Androudi Rodrigo Anguita Abhishek Anil Rimple Jeet Kaur Muhammad Aaqib Shamim Saeid Anvari Anayochukwu Edward Anyasodor Francis Appiah Jalal Arabloo Haleh Ayatollahi Mosab Arafat damelash Areda Reza Arefnezhad Brhane Berhe Aregawi Akeza Awealom Asgedom Tahira Ashraf Seyyed Shamsadin Athari Bantalem Tilaye Tilaye Atinafu Birhan Tsegaw Taye Maha Moh’d Wahbi Atout Alok Atreya Ahmed Y. Azzam Hassan Babamohamadi Sara Bagherieh Yogesh Bahurupi Atif Amin Baig Shumaila Nargus Biswajit Banik Mainak Bardhan Saurav Basu Kavita Batra Nebiyou Simegnew Bayileyegn Fatemeh Bazvand Addisu Shunu Beyene Awoke Masrie Asrat derese devidas S. Bhagat Akshaya Srikanth Bhagavathula Pankaj Bh Medicine & Health University of New South Wales Sydney NSW Australia School of Optometry and Vision Science University of New South Wales Sydney NSW Australia School of Population and Global Health University of Melbourne Carlton VIC Australia Vision and Eye Research Institute Anglia Ruskin University Cambridge UK HelpMeSee Instituto Mexicano de Oftalmologia Santiago de Querétaro Mexico University of Miami Gables FL USA University of Utah Salt Lake City UT USA Chief Medical Office HelpMeSee New York NY USA Mexican Institute of Ophthalmology Queretaro Mexico Department of Ophthalmology Massachusetts Eye and Ear/Shepens Eye Research Institute/Harvard Medical School Boston MA USA Eye Unit MyungSung Christian Medical Center (MCM) Comprehensive Specialized Hospital and MyungSun Medical College Addis Ababa Ethiopia Department of Ophthalmology Addis Ababa University Addis Ababa Ethiopia Sight for Souls Bellevue WA USA Department of Ophthalmology Harvard University Boston MA USA Eye Unit MyungSung Medical College Addis Ababa Ethiopia Addenbrooke’s Hospital Cambridge UK Department of Ophthalmology Cambridge University Hospitals Cambridge UK Federal University of Sao Paolo Sao Paolo SP Brazil University of Calgary Calgary AB Canada Department of Ophthalmology and Visual Sciences Federal University of São Paulo Sao Paulo Brazil School of Medicine Vita-Salute San Raffaele University Milan Italy Department of Ophthalmology IRCCS San Raffaele Scientific Institute Milan Italy Department of Ophthalmology San Raffaele Scientific Institute Milano Italy IRCCS San Raffaele Scientific Institute Vita-Salute University Milan Italy Scientific Institute San Raffaele Hospital Vita-Salute University Milan Italy University of Poitiers Poitiers France CHU de Poitiers Poitiers France Ophthalmology Department CHU de Poitiers (Poitiers University Hospital) Poitiers France Unité 1084 National Institute of Health and Medical Research (INSERM) Poitiers France

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Advancement of Photospheric Radius Expansion and Clocked Type-I X-Ray Burst Models with the New Mg22(α,p)Al25 Reaction Rate determined at the Gamow Energy

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Physical Review Letters 2021年第17期127卷 172701-172701页

作者： J. Hu (胡钧) H. Yamaguchi (山口英斉) Y. H. Lam (藍乙華) A. Heger d. Kahl A. M. Jacobs Z. Johnston S. W. Xu (许世伟) N. T. Zhang (张宁涛) S. B. Ma (马少波) L. H. Ru (茹龙辉) E. Q. Liu (刘恩强) T. Liu (刘通) S. Hayakawa (早川勢也) L. Yang (杨磊) H. Shimizu (清水英樹) C. B. Hamill A. St J. Murphy J. Su (苏俊) X. Fang (方晓) K. Y. Chae (채경육) M. S. Kwag (곽민식) S. M. Cha (차수미) N. N. duy N. K. Uyen d. H. Kim (김두현) R. G. Pizzone M. La Cognata S. Cherubini S. Romano A. Tumino J. Liang A. Psaltis M. Sferrazza d. Kim (김다히) Y. Y. Li (李依阳) S. Kubono (久保野茂) Institute of Modern Physics Chinese Academy of Sciences Lanzhou 730000 China School of Nuclear Science and Technology University of Chinese Academy of Sciences Beijing 100049 China Center for Nuclear Study(CNS) the University of Tokyo RIKEN campus 2-1 Hirosawa Wako Saitama 351-0198 Japan National Astronomical Observatory of Japan 2-21-1 Osawa Mitaka Tokyo 181-8588 Japan School of Physics and Astronomy Monash University Victoria 3800 Australia OzGrav-Monash—Monash Centre for Astrophysics School of Physics and Astronomy Monash University Vic 3800 Australia Center of Excellence for Astrophysics in Three Dimensions (ASTRO-3D) Australia The Joint Institute for Nuclear Astrophysics Michigan State University East Lansing Michigan 48824 USA Extreme Light Infrastructure - Nuclear Physics IFIN-HH 077125 Bucharest-Măgurele Romania SUPA School of Physics & Astronomy University of Edinburgh Edinburgh EH9 3FD United Kingdom Department of Physics and Astronomy Michigan State University East Lansing Michigan 48824 USA College of Nuclear Science and Technology Beijing Normal University Beijing 100875 China Sino-French Institute of Nuclear Engineering and Technology Sun Yat-Sen University Zhuhai 519082 Guangdong China Department of Physics Sungkyunkwan University Suwon 16419 Korea Institute of Research and Development Duy Tan University Da Nang 550000 Vietnam Laboratori Nazionali del Sud-INFN Via S. Sofia 62 Catania 95123 Italy Dipartimento di Fisica e Astronomia “Ettore Majorana”—Università degli Studi di Catania Via. Sofia 64 95123 Catania Italy Centro Siciliano di Fisica Nucleare e Struttura della Materia (CSFNSM) Via. Sofia 64 95123 Catania Italy Facoltà di Ingegneria e Architettura Università degli Studi di Enna “Kore” Enna 94100 Italy Department of Physics & Astronomy McMaster University Ontario L8S 4M1 Canada Département de Physique Université Libre de Bruxelles Bruxelles B-1050 Belgium Department of Physics Ewha Womans University Seoul 03760 Korea RIK

We report the first (in)elastic scattering measurement of Al25+p with the capability to select and measure in a broad energy range the proton resonances in Si26 contributing to the Mg22(α,p) reaction at type I x-ray burst energies. We measured spin-parities of four resonances above the α threshold of Si26 that are found to strongly impact the Mg22(α,p) rate. The new rate advances a state-of-the-art model to remarkably reproduce light curves of the GS 1826–24 clocked burster with mean deviation <9% and permits us to discover a strong correlation between the He abundance in the accreting envelope of the photospheric radius expansion burster and the dominance of Mg22(α,p) branch.

关键词： Nuclear astrophysics Nuclear physics of explosive environments X ray bursts

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