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Twinning behaviors of Mg-Sn alloy with basal or prismatic Mg_2Sn

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Transactions of Nonferrous Metals Society of China 2024年第9期34卷 2800-2813页

作者： Rui-hao fu Yang-jie WAN Xun-fei XIONG Dong-di YIN Man-ping LIU Bin JIANG zi-rong ZHOU Yu-yang GAO Ying ZENG National Engineering Research Center for Magnesium Alloys Chongqing UniversityChongqing 400044China Key Laboratory of Advanced Technologies of Materials Ministry of EducationSchool of Materials Science and EngineeringSouthwest Jiaotong UniversityChengdu 610031China School of Materials Science and Engineering Jiangsu UniversityZhenjiang 212013China Institute of Science and Technology Innovation Dongguan University of TechnologyGuangdong 523007China

The Mg-Sn alloys,with basal or prismatic Mg2Sn laths,were employed to reveal the effect of precipitate orientation on twinning behavior *** Mg-5wt.%Sn alloys with basal or prismatic Mg2Sn were compressed to study the twinning ***,an Orowan strengthening model was developed to quantitatively investigate the critical resolved shear stress(CRSS)increment of precipitates on *** results revealed that the prismatic precipitates hindered the transfer and growth of tensile twins more effectively compared with the basal *** decreased proportion of tensile twins containing prismatic Mg2Sn might be attributed to a larger CRSS increment for tensile twins compared with that for basal *** obvious decreased twinning transfer in the alloy with prismatic Mg2Sn could be due to its higher geometrically necessary dislocation and enhanced CRSS of tensile ***,the prismatic precipitates have a better hindering effect on tensile twins during compression.

关键词： Mg−Sn alloy orientation regulation twinning behavior Mg2Sn lath Orowan strengthening

A retrospective study of occlusal reconstruction in patients with old jaw fractures and dentition defects

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Chinese Journal of Traumatology 2024年第5期27卷 272-278页

作者： Ming-Chao Ding Bo-Ya Jing Jin Shi Liu Yang Xiang-Dong Liu Jing-fu Wang Shuang Qu Jia-Wu Liang zi-hao Tang Jin-Long Zhao Lei Tian State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration National Clinical Research Center for Oral DiseasesShaanxi Clinical Research Center for OralDiseasesDepartment of Oral and MaxillofacialSchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China Department of Maxillofacial Trauma and Orthognathic Surgery The Third Affiliated HospitalThe Air Force Military Medical UniversityXi'an710038China Department of Stomatology 941th Hospital of People's Liberation Army Joint Logistic Support ForceXining810000China

Purpose:This study evaluated the methods and clinical effects of multidisciplinary collaborative treatment for occlusal reconstruction in patients with old jaw fractures and dentition ***:Patients with old jaw fractures and dentition defects who underwent occlusal reconstruction at the Third Affiliated Hospital of Air Force Military Medical University from January 2018 to December 2022 were *** treatment was classified into 3 *** phase I,techniques such as orthognathic surgery,microsurgery,and distraction osteogenesis were employed to reconstruct the correct 3-dimensional(3D)jaw position *** phase II,bone augmentation and soft tissue management techniques were utilized to address insufficient alveolar bone mass and poor gingival soft tissue *** phase III,implant-supported overdentures or fixed dentures were used for occlusal reconstruction.A summary of treatment methods,clinical efficacy evaluation,comparative analysis of imageological examinations,and satisfaction questionnaire survey were utilized to evaluate the therapeutic efficacy in patients with traumatic old jaw fractures and dentition *** data are summarized using the arithmetic mean±standard deviation and compared using independent ***:In 15 patients with old jaw fractures and dentition defects(an average age of 32 years,ranging from 18 to 53 years),there were 7 cases of malocclusion of single maxillary fracture,6 of malocclusion of single mandible fracture,and 2 of malocclusion of both maxillary and mandible *** were 5 patients with single maxillary dentition defects,2 with single mandibular dentition defects,and 8 with both maxillary and mandibular dentition *** reconstruct the correct 3D jaw positional relationship,5 patients underwent Le Fort I osteotomy of the maxilla,3 underwent bilateral sagittal split ramus osteotomy of the mandible,4 underwent open reduction and internal fixation for old jaw fracture

关键词： Old jaw fractures Malocclusion Occlusal reconstruction Dental implant prosthesis

竹炭-沸石混合料可渗透反应墙修复镉污染地下水的试验

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中国环境科学 2024年第10期44卷 5607-5619页

作者：李子邦张亮刘豪龚星广东工业大学土木与交通工程学院广东广州510006 水利部长江勘测技术研究所湖北武汉430011 广东粤路勘察设计有限公司广东广州510630

本文结合物理力学测试、静态批和动态柱试验、微观表征分析、地下水数值模拟等手段分析了竹炭-沸石混合料填充可渗透性反应墙(PRB)对镉的吸附机理和时效性.竹炭(粒径大于0.18mm)和沸石(粒径大于0.5mm)按照质量分数1:10∼3:10混合时,不... 详细信息

本文结合物理力学测试、静态批和动态柱试验、微观表征分析、地下水数值模拟等手段分析了竹炭-沸石混合料填充可渗透性反应墙(PRB)对镉的吸附机理和时效性.竹炭(粒径大于0.18mm)和沸石(粒径大于0.5mm)按照质量分数1:10∼3:10混合时,不仅能有效去除地下水中镉,而且具备良好的渗透性和抗剪强度.竹炭-沸石混合料对镉的吸附能力随竹炭配比增加而增大,随粒径减小而增加;PRB柱穿透和耗竭时间随地下水流量和镉浓度增加而缩短.竹炭-沸石混合料去除镉的过程主要是发生络合反应、螯合作用、离子交换反应.地下水镉污染场地的PRB墙体厚度越大,地下水流速越慢,PRB的有效运行时间越长.

关键词：地下水镉污染可渗透反应墙长效性

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Folding encapsulation toward Lindqvist polyoxometalates within adaptive coordination cages for catalysis

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Science China Chemistry 2024年

作者： Ying-Mei Zhong Jin-Jin Xuan Xu-Jie Qin Han Xiao zi-Jun Xia Li-Peng Zhou Xiao-Qing Guo Yu-Hang Hu Lu zhang Chun-Sen Li Li-Xuan Cai Qing-fu Sun State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences College of Chemistry and Materials Science Fujian Normal University University of Chinese Academy of Sciences

In nature,enzymes at specific folded conformations exhibit high substrate complementarity,enabling them to efficiently and selectively catalyze biochemical *** by enzymes,coordination cages with conformational dynamics have been designed and are receiving increasing attention due to their versatile applications in allosteric guest binding and *** present here two enzyme-mimicking adaptive macrocycle-based coordination cages,Pd2L12and Pd2L22,from macrocycle-based ligands（L1and L2） and the encapsulation and stabilization of Lindqvist polyoxometalates anions M6O192-（M=W or Mo） in neutral aqueous solution.X-ray crystallographic studies have verified the formation of 1:1 host-guest complexes of two Pd2 L2 cages and the W6O192-anion,via an induced-fit folding *** with the free host,Pd2L12exhibited an induced-fit semi-folded conformation in the inclusion complex,while Pd2L22adopted an induced-fit fully-folded ***,the Mo6O19?Pd2L2host-guest complexes demonstrate high yield and selectivity in the oxidative decontamination reaction of the sulfur mustard simulant,2-chloroethyl ethyl *** work not only sheds light on the importance of conformational adaptability in enzyme-like systems but also paves the way for protecting labile POM clusters via host-guest encapsulation toward enhanced catalytic performance in aqueous solution.

关键词：

美国国家综合癌症网络《胃癌临床实践指南》(2024年第一版)更新要点解读

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中国实用外科杂志 2024年第6期44卷 610-614页

作者：赵恩昊张子臻曹晖上海交通大学医学院附属仁济医院胃肠外科上海200127

2024年3月7日美国国家综合癌症网络(NCCN)更新了2024年第一版《胃癌临床实践指南》,对于早期胃癌的内镜治疗、二代测序、胃癌腹膜转移的诊疗、系统治疗方案和术后营养缺乏监测等方面作出了更新。特别是针对近年来晚期胃癌腹膜转移采用... 详细信息

2024年3月7日美国国家综合癌症网络(NCCN)更新了2024年第一版《胃癌临床实践指南》,对于早期胃癌的内镜治疗、二代测序、胃癌腹膜转移的诊疗、系统治疗方案和术后营养缺乏监测等方面作出了更新。特别是针对近年来晚期胃癌腹膜转移采用腹腔内化疗或腹腔热灌注化疗的热点问题,该指南较为详细地阐述了治疗适应证、综合治疗模式、疗效评估等内容。在知识和信息迭代更新的时代,NCCN指南也不断地作出更新以适应新的挑战。新的分子检测手段在胃癌精准诊疗中越来越占据重要的地位,而内镜治疗、腹腔镜手术、机器人手术在内的微创治疗手段也随着更多的循证医学证据和临床实践经验被纳入指南中,充分体现了外科医师对于病人长期生存和生存质量的无限追求。同样,以免疫检查点抑制剂、靶向治疗药物、抗体药物偶联物为代表的新型抗肿瘤药物在胃癌系统治疗中的地位日益上升,也为病人提供了更多的治疗选择。未来,秉承“以病人为中心”的治疗理念,积极推动多学科协作和全程化管理,才能真正追求实现所有治疗指南的终极目标。

关键词：胃癌美国国家综合癌症网络指南解读

Manipulation of band gap in 1T-TiSe_(2) via rubidium deposition

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Chinese Physics B 2024年第8期33卷 102-106页

作者：欧仪陈磊信子鸣任宇靖袁鹏浩王政国朱玉陈景芝张焱 International Center for Quantum Materials School of PhysicsPeking UniversityBeijing 100871China

The 1T-TiSe_(2) is a two-dimensional charge-density-wave(CDW)material that attracts great interest.A small band gap locates at the Fermi level separating the Ti d-bands and Se p-bands,which makes 1T-TiSe_(2) a promising candidate for realizing excitonic ***,we studied the band gap in 1T-TiSe_(2) using angle-resolved photoemission spectroscopy(ARPES).Instead of only focusing on the in-plane band dispersions,we obtained the detailed band dispersions of both conduction and valance bands along the out-of-plane *** found that the conduction and valance bands split into multiple sub-bands in the CDW state due to band *** a result,the band gap between the Ti d-bands and Se p-bands reduces to~25 meV and becomes a direct gap in the CDW *** intriguingly,such band gap can be further reduced by the rubidium *** band structure becomes semimetallic in the rubidium-doped ***,exotic gapless behaviors were observed at the p-d band *** result characterized the band gap of 1T-TiSe_(2) in three-dimensional Brillouin zone with unpreceded *** also suggests a closing of band gap or a potential band inversion in 1T-TiSe_(2) driven by rubidium deposition.

关键词： angle-resolved photoemission spectroscopy metal–insulator transition transition metal dichalcogenides

Two-dimensional materials for future information technology: status and prospects

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Science China(Information Sciences) 2024年第6期67卷 1-147页

作者： hao QIU Zhihao YU Tiange Zhao Qi zhang Mingsheng XU Peifeng LI Taotao LI Wenzhong BAO Yang CHAI Shula CHEN Yiqi CHEN Hui-Ming CHENG Daoxin DAI Zengfeng DI Zhuo DONG Xidong DUAN Yuhan FENG Yu fu Jingshu GUO Pengwen GUO Yue hao Jun HE Xiao HE Jingyi HU Weida HU Zehua HU Xinyue HUANG ziyang HUANG Ali IMRAN ziqiang KONG Jia LI Qian LI Weisheng LI Lei LIAO Bilu LIU Can LIU Chunsen LIU Guanyu LIU Kaihui LIU Liwei LIU Sheng LIU Yuan LIU Donglin LU Likuan MA Feng MIAO Zhenhua NI Jing NING Anlian PAN Tian-Ling REN haowen SHU Litao SUN Yue SUN Quanyang TAO zi-Ao TIAN Dong WANG hao WANG haomin WANG Jialong WANG Junyong WANG Wenhui WANG Xingjun WANG Yeliang WANG Yuwei WANG Zhenyu WANG Yao WE... School of Electronic Science and Engineering Nanjing University School of Integrated Circuits Interdisciplinary Research Center for Future Intelligent Chips (Chip-X)Nanjing University School of Integrated Circuit Science and Engineering Nanjing University of Posts and Telecommunications State Key Laboratory of Infrared Physics Shanghai Institute of Technical Physics Chinese Academy of Sciences School of Physics and Key Lab of Quantum Materials and Devices of the Ministry of Education School of Electronic Science & EngineeringSoutheast University College of Integrated Circuits State Key Laboratory of Silicon and Advanced Semiconductor MaterialsZhejiang University Suzhou Laboratory State Key Laboratory of Integrated Chips and Systems School of MicroelectronicsFudan University Shaoxin Laboratory Department of Applied Physics The Hong Kong Polytechnic University Key Laboratory for Micro-Nano Physics and Technology of Hunan Province College of Materials Science and EngineeringHunan University College of Integrated Circuits Zhejiang University Shenzhen Geim Graphene Center Shenzhen Key Laboratory of Layered Materials for Value-Added ApplicationsTsinghua-Berkeley Shenzhen Institute & Institute of Materials ResearchTsinghua Shenzhen International Graduate SchoolTsinghua University State Key Laboratory of Extreme Photonics and Instrumentation College of Optical Science and EngineeringInternational Research Center for Advanced PhotonicsZijingang CampusZhejiang University National Key Laboratory of Materials for Integrated Circuits Shanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences CAS Key Laboratory of Nanophotonic Materials and Devices & Key Laboratory of Nanodevices and Applications i-LabSuzhou Institute of Nano-Tech and Nano-Bionics (SINANO)Chinese Academy of Sciences College of Chemistry and Chemical Engineering Hunan University Key Laboratory of Quantum State Construction and Manipulation (Ministry of Education) Department of PhysicsRenmin University of China School

Over the past 70 years, the semiconductor industry has undergone transformative changes,largely driven by the miniaturization of devices and the integration of innovative structures and materials. Two-dimensional(2D) materials like transition metal dichalcogenides(TMDs) and graphene are pivotal in overcoming the limitations of silicon-based technologies, offering innovative approaches in transistor design and functionality, enabling atomic-thin channel transistors and monolithic 3D integration. We review the important progress in the application of 2D materials in future information technology, focusing in particular on microelectronics and optoelectronics. We comprehensively summarize the key advancements across material production, characterization metrology, electronic devices, optoelectronic devices, and heterogeneous integration on silicon. A strategic roadmap and key challenges for the transition of 2D materials from basic research to industrial development are outlined. To facilitate such a transition, key technologies and tools dedicated to 2D materials must be developed to meet industrial standards, and the employment of AI in material growth, characterizations, and circuit design will be essential. It is time for academia to actively engage with industry to drive the next 10 years of 2D material research.

关键词： two-dimensional (2D) materials information technology production technology standardization of characterization microelectronicdevices optoelectronic devices multi-functional integration

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基于高阶信息的网络相似性比较方法

物理学报 2024年第3期73卷 346-356页

作者：陈浩宇徐涛刘闯张子柯詹秀秀杭州师范大学复杂科学研究中心杭州311121 浙江大学数字沟通研究中心杭州310058 浙江大学传媒与国际文化学院杭州310058

量化复杂网络之间的结构相似性是网络科学中一个基本且具有挑战性的问题,在医学、社会学等多个领域发挥了至关重要的作用.传统的网络比较方法通常基于简单的结构特征,例如节点度分布、最短路径长度等,这些方法可能无法充分捕捉网络的全... 详细信息

量化复杂网络之间的结构相似性是网络科学中一个基本且具有挑战性的问题,在医学、社会学等多个领域发挥了至关重要的作用.传统的网络比较方法通常基于简单的结构特征,例如节点度分布、最短路径长度等,这些方法可能无法充分捕捉网络的全局结构信息,导致得到的网络相似性不精准.本文提出了一种基于高阶信息的网络相似性比较方法,该方法同时考虑了网络的全局结构和局部结构.具体而言,通过构建网络节点的高阶聚类系数分布和节点间距离分布,并利用基于这两个分布的Jensen-Shannon散度来量化网络之间的相似性.实验结果表明,相较于其他基线方法,本文提出的方法不仅能高效地比较不同网络的相似性,且在对真实网络进行扰动的过程中也表现出鲁棒性.

关键词：网络相似性高阶聚类系数距离分布

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Development of a novel difficulty scoring system for laparoscopic liver resection procedure in patients with intrahepatic duct stones

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World Journal of Gastrointestinal Surgery 2024年第10期16卷 3133-3141页

作者： Bo Luo Si-Kai Wu Ke zhang Pei-Hong Wang Wei-Wei Chen Ning fu Zhi-Ming Yang Jing-Cheng hao Department of Hepatobiliary and Vascular Surgery The First Affiliated Hospital of Chengdu Medical CollegeChengdu 610500Sichuan ProvinceChina Department of General Surgery The Western Theater Command General HospitalChengdu 610500Sichuan ProvinceChina Department of Hepatobiliary and Pancreatic Surgery Clinical Medical College and The First Affiliated Hospital of Chengdu Medical CollegeChengdu 610500Sichuan ProvinceChina

BACKGROUND For intrahepatic duct(IHD)stones,laparoscopic liver resection(LLR)is currently a reliable ***,the current LLR difficulty scoring system(DSS)is only available for patients with hepatocellular *** To explore the development of a DSS for IHD stone patients with LLR and the validation of its *** We used clinical data from 80 patients who received LLR for IHD ***-six of these patients were used in multiple linear regression to construct a scoring *** 34 patients from different centers were used as external *** completeness of our DSS was then evaluated in patients with varying degrees of surgical difficulty based on documented surgical outcomes in the study group of *** The following five predictors were ultimately included and scored by calculating the weighted contribution of each factor to the prediction of operative time in the training cohort:Location of stones,number of stones≥3,stones located in the bile ducts of several grades,previous biliary surgery less than twice,distal bile duct ***,the data set was validated using a DSS developed from the *** following variables were identified as statistically significant in external validation:Operative time,blood loss,intraoperative transfusion,postoperative alanine aminotransferase,and Clavien-Dindo grading≥*** variables demonstrated statistically significant differences in patients with three or more *** Patients with IHD stones have varying degrees of surgical difficulty,and the newly developed DSS can be validated with external data to effectively predict risks and complications after LLR surgery.

关键词： Intrahepatic duct stones Laparoscopic liver resection Difficulty scoring system Outcome Complication