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Advances in Manufacturing 2024年第1期12卷 167-176页

作者： qiang-qiang Liu Shu-Ting Liu Ying-Guang Li Xu Liu Xiao-Zhong Hao College of Mechanical and Electrical Engineering Nanjing University of Aeronautics and AstronauticsNanjing210016People’s Republic of China School of Mechanical and Power Engineering Nanjing Tech UniversityNanjing211816People’s Republic of China

Online monitoring of the curing temperature field is essential to improving the quality and efficiency of the manufacturing process of composite *** embedded sensor-based technologies have difficulty monitoring the full temperature field or have to introduce heterogeneous items that could have an undesired impact on the *** this paper,a non-contact,full-field monitoring method based on deep learning that predicts the internal temperature field of composite parts in real time using surface temperature measurements of auxiliary materials is *** the proposed method,an average temperature monitoring accuracy of 97%is achieved in various heating *** addition,this method also demonstrates satisfying feasibility when a stronger thermal barrier covers the *** method was experimentally validated during the self-resistance electric heating process,in which the monitoring accuracy reached 93.1%.This method can potentially be applied to automated manufacturing and process control in the composites industry.

关键词： Online monitoring Curing temperature field Deep learning(DL) In-situ heating

Viscosity and structure of CaO-BaO-SiO_(2)-Al_(2)O_(3)-based mold slags for continuous casting of high titanium steel with different Tio2 absorption

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Journal of Iron and Steel Research International 2024年第8期31卷 1936-1946页

作者： Ya-tao Cui Xue-you Wang Xu-bin Zhang qiang-qiang Wang Sheng-ping He College of Materials Science and Engineering Chongqing UniversityChongqing 400044China

The effect of TiO_(2) absorption into two different CaO-BaO-SiO_(2)-Al_(2)O_(3)-based mold slags from the steel plant on the viscosity,melting performance and microstructure of slags was investigated through the measurement of the viscosity-temperature relationship,melting temperature and Raman *** parameter of the number of non-bridging oxygen per tetrahedrally-coordinated atom(NBO/T)was also calculated to explain the microstructure variation of molten slags with different TiO_(2) *** variation of the actual slag consumption and the depth of the liquid slag in mold was explained through the comparison of the viscosity and the melting temperature of two different *** viscosity of mold slags(basicity=0.6)decreased from 1.1 to 0.68 Pa s with the increase in the Ti0_(2) absorption from 0 to 10%,while that of slags(basicity=0.7)decreased from 0.76 to 0.56 Pa s with the Ti0_(2) absorption from 0 to 6%.The activation energy of both two groups of slags had the tendency to decrease with the increasing TiO_(2) *** network structure of both two groups of slags measured by the Raman spectra showed that the fraction of complex structure units(Q^(1),Q^(2),Q^(3) and A1-O-Al)decreased and simple structure units(Al-O-and Q^(0))increased with the increase in TiO_(2) ***/T also increased with the increase in the TiO2 absorption,indicating that the absorption of TiO_(2) into slags resulted in the destruction of silicate/aluminate ***,the absorption of TiO_(2) into the current CaO-BaO-SiO_(2)-Al_(2)O_(3) mold slags decreased the degree of polymerization of these slags and then led to the decrease of viscosity.

关键词： Mold slag Viscosity Melting temperature Slag consumption Liquid slag depth Structure

Molecular Ferroelastic Induced by Mono-/Double-Protonation Strategy

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Chinese Journal of Chemistry 2024年第15期42卷 1706-1712页

作者： Jia-Qi Luo Meng-Meng Lun qiang-qiang Jia Zhi-Jie Wang Hai-Feng Lu Yi Zhang Da-Wei Fu Institute for Science and Applications of Molecular Ferroelectrics Key Laboratory of the Ministry of Education for Advanced Catalysis MaterialsZhejiang Normal UniversityJinhuaZhejiang 321004China Ordered Matter Science Research Center Jiangsu Key Laboratory for Science and Applications of Molecular FerroelectricsSoutheast UniversityNanjingJiangsu 211189China

Molecular ferroelastics with the natural features of mechanical flexibility and switchable spontaneous strain have attracted widespread attention in the scientific community due to their potential applications in tunable gratings,flexible memorizers,strain sensors,and intelligent ***,most designs of molecular ferroelastics remain in the stage of blind exploration,posing a challenge to achieve a functional ferroelastic more ***,we have successfully obtained a molecular ferroelastic,[Me_(2)NH(CH_(2))_(2)NH_(3)](ReO_(4))_(2)(Me_(2)NH(CH_(2))_(2)NH_(3)=N,N-dimethylethylenediammonium),under the guidance of the mono-/double-protonation ***_double-protonated[Me_(2)NH(CH_(2))_(2)NH_(3)](ReO_(4))_(2) undergoes a paraelastic-ferroelastic phase transition with the Aizu notation of 2/mFi at 322 ***,the theoretical calculation and experimental measurement simultaneously show that[Me_(2)NH(CH_(2))_(2)NH_(3)](ReO_(4))_(2) possesses good mechanical flexibility,because its elastic modulus(E)of 8.26 GPa and hardness(H)of 0.45 GPa are smaller than the average values of organic crystals(E of 12.05 GPa and H of 0.5 GPa),which makes it promising to apply in wearable pressure sensors,implantable medical sensors,high-precision tuners,*** work further enriches the molecular ferroelastic family and demonstrates that mono-/double-protonation is one of the effective molecular modification strategies for designing ferroelastics.

关键词： Molecular crystal Ferroelastic Mono-/double-protonation Mechanical flexibility Phase transition Crystal engineering Computational chemistry Molecular dynamics

Spatiotemporal variations in glacier area and surface velocity of the northern Antarctic Peninsula during 2018-2022

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Advances in Climate Change Research 2024年第2期15卷 297-311页

作者： Yu-Long KANG Shi-Chang KANG Wan-Qin GUO Tao CHE Zong-Li JIANG Zhen-Feng WANG qiang-qiang XU Cheng-De YANG State Key Laboratory of Cryospheric Science Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China University of Chinese Academy of Sciences Beijing 100083China Key Laboratory of Remote Sensing of Gansu Province Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China School of Earth Sciences and Spatial Information Engineering Hunan University of Science and TechnologyXiangtan 411201China

Ice sheet serves as a crucial indicator for assessing climate *** loss in recent remote sensing-based studies indicated that the Antarctic Peninsula has rapid rates of glacier retreat and speed up of surface ***,observations of seasonal variability of ice speed are limited,and glacier-area changes require multi-temporal *** study investigated the changes in area and surface velocities of∼375 glaciers on the northern Antarctic Peninsula(NAP)utilizing satellite images acquired by the Sentinel 1&2 satellites during *** results indicate that the glacier area reduced by approximately 166.1±44.2 km^(2)(-0.2%±0.1%per year)during the study period,with an acceleration after 2020(-0.4%±0.3%per year),and the most dramatic reduction happened on the eastern *** maximum annual ice speeds on the NAP generally exceeded 3500 m per year,while the ice speeds in 2021 were the highest(exceeded 4210 m per year).The ice speed variability in austral autumn was higher than in other seasons,meanwhile the summer ice speeds showed an increasing *** glacier G012158E47018N,McNeile Glacier,glacier G299637E64094S and Drygalski Glacier showed the most remarkable ice speed variations represented by high daily velocities and strong fluctuations on their *** results demonstrated that the variations in glacier area and seasonal ice speed on the NAP were responsive to the ice-ocean-atmosphere ***,seasonal velocity and area variations should be considered when conducting accurate mass balance calculations,model validations and change mechanism analyses under climate warming scenarios.

关键词： Glacier area Seasonal ice speed Sentinel 1&2 Northern Antarctic Peninsula Ice-ocean-atmosphere processes

Trends and hotspots in gastrointestinal neoplasms risk assessment: A bibliometric analysis from 1984 to 2022

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World Journal of Gastrointestinal Oncology 2024年第6期16卷 2842-2861页

作者： qiang-qiang Fu Le Ma Xiao-Min Niu Hua-Xin Zhao Xu-Hua Ge Hua Jin De-Hua Yu Sen Yang Department of General Practice Yangpu HospitalSchool of MedicineTongji UniversityShanghai 200090China Shanghai General Practice and Community Health Development Research Center Shanghai 200090China Department of Shanghai Lung Cancer Center Shanghai Chest HospitalShanghai Jiao Tong University School of MedicineShanghai 200030China Department of Oncology Shanghai Tenth People’s HospitalTongji University School of MedicineShanghai 200090China

BACKGROUND Gastrointestinal neoplasm(GN)significantly impact the global cancer burden and mortality,necessitating early detection and *** the evolution and current state of research in this field is *** To conducts a comprehensive bibliometric analysis of publications from 1984 to 2022 to elucidate the trends and hotspots in the GN risk assessment research,focusing on key contributors,institutions,and thematic *** This study conducted a bibliometric analysis of data from the Web of Science Core Collection database using the"bibliometrix"R package,VOSviewer,and *** analysis focused on the distribution of publications,contributions by institutions and countries,and trends in *** methods included data synthesis,network analysis,and visualization of international collaboration *** This analysis of 1371 articles on GN risk assessment revealed a notable evolution in terms of research focus and *** highlights the United States'critical role in advancing this field,with significant contributions from institutions such as Brigham and Women's Hospital and the National Cancer *** last five years,substantial advancements have been made,representing nearly 45%of the examined *** rates have dramatically increased,from 20 articles in 2002 to 112 in 2022,reflecting intensified research *** study underscores a growing trend toward interdisciplinary and international collaboration,with the Journal of Clinical Oncology standing out as a key publication *** shift toward more comprehensive and collaborative research methods marks a significant step in addressing GN *** This study underscores advancements in GN risk assessment through genetic analyses and machine learning and reveals significant geographical disparities in research *** calls for enhanced global collaboration and integration of artificial intelligence to improve cancer p

关键词： Gastrointestinal neoplasms Bibliometric analysis Risk assessment Network analysis Research trends

Emerging progress: photochemical transformation of nitroso compounds

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Science China Chemistry 2024年

作者： Ze-Le Chen qiang-qiang Li Armido Studer Jun Xuan Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials School of Chemistry & Chemical Engineering Anhui University Organisch-Chemisches Institut Universitat Münster

Nitroso compounds have emerged as highly valuable reaction partners or reagents in organic synthesis due to their rich *** versatile profile of these compounds allows them to function as electrophiles, nucleophiles, diradicals, and radical acceptors in diverse transformations. In recent years, notable progress has been made in harnessing photochemical reactions with nitroso compounds to prepare N,O-containing structures using mild and eco-friendly conditions. Various nitroso compounds like nitrosoarenes, acyloxy nitroso compounds, N-nitrosoamines and nitrites have received significant attention for their ability to introduce NO moieties into complex molecules that are otherwise difficult to access. In this review, we provide an overview of the recent advancements in the visible light-induced conversion of nitroso compounds, with particular emphasis on their role as bifunctional reagents and acceptors of radicals, carbenes and nitrenes.

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互动专长是第三种知识吗

科学学研究 2024年第7期42卷 1369-1375页

作者：陈强强西藏民族大学马克思主义学院陕西咸阳712082

基于专长与经验研究,科林斯提出了互动专长概念,并认为互动专长是介于形式化的命题知识和非形式化的默会知识之间的第三种知识。互动专长是指互动专家能够在缺少身体完全沉浸于某个专业领域生活方式的情况下,依然能通过语言社会化获得... 详细信息

基于专长与经验研究,科林斯提出了互动专长概念,并认为互动专长是介于形式化的命题知识和非形式化的默会知识之间的第三种知识。互动专长是指互动专家能够在缺少身体完全沉浸于某个专业领域生活方式的情况下,依然能通过语言社会化获得该专业领域的流利语言。然而,科林斯误判了隐藏在互动专长背后的默会认知、具身认知及隐喻认知的重要意义,低估了玛德琳的具身程度和他自己在引力波物理学田野调查中的具身程度,误解了现象学身体在获得互动专长中的巨大作用。获得互动专长所需的身体条件并非像科林斯认为的那样是“最小的”,且科林斯对互动专长的理解缺乏现象学“身体-主体”的整体论思想。因此,将互动专长定性为第三种知识缺乏充分的依据。

关键词：互动专长具身隐喻命题知识默会知识

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基于尺寸效应的夯土水盐运移分布特征研究

岩土力学 2024年第5期45卷 1481-1494页

作者：朱晶裴强强郭青林张博敦煌研究院甘肃敦煌736200 国家古代壁画与土遗址保护工程技术研究中心甘肃敦煌736200 甘肃敦煌文物保护技术研究中心甘肃敦煌736200

水盐循环作用是夯土遗址渐进式破坏的主要影响因素之一。为了研究尺寸对夯土水盐运移分布特征的影响规律,制备5组含盐量为0.3%、边长为50、100、200、500、900 mm立方体夯土试样,并将其置于温度为10~27℃、相对湿度为20%~50%的室内环境... 详细信息

水盐循环作用是夯土遗址渐进式破坏的主要影响因素之一。为了研究尺寸对夯土水盐运移分布特征的影响规律,制备5组含盐量为0.3%、边长为50、100、200、500、900 mm立方体夯土试样,并将其置于温度为10~27℃、相对湿度为20%~50%的室内环境进行自然失水试验。在失水周期内,通过钻孔取样,检测夯土试样表层至内部土体的含水率及含盐量,并分析不同尺寸夯土试样水盐运移特征及尺寸效应。试验结果表明:夯土试样的失水周期及表层土体盐分富集量随尺寸的增大而增大,失水速率随尺寸的增大而减小。不同尺寸夯土试样的失水周期分为快速失水、缓慢失水、稳定失水3个阶段,水盐运移活动主要发生在快速失水阶段。失水过程中,盐分随水分向试样表层运移,表层土体盐分含量增加,内部土体盐分含量降低,盐分集中富集在表层土体上。该研究可以为土遗址室内小块体试验、模拟足尺试验和野外观测试验研究提供理论支撑。

关键词：夯土水盐运移失水含盐量含水率周期尺寸效应

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全生命周期视角下甘南黄河水源补给区畜牧业碳足迹估算及时空格局分析

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草业学报 2024年第9期33卷 227-241页

作者：李晓榕陈强强甘肃农业大学财经学院甘肃兰州730070 甘肃省生态建设与环境保护研究中心甘肃兰州730030

客观认知畜牧业碳动态及其时空格局是夯实区域畜牧业低碳和生态化发展的科学基础。本研究基于2000-2020年甘南黄河水源补给区县域尺度的畜牧业生产投入数据,运用全生命周期法估算畜牧业碳足迹,揭示其时空变化和结构特征,应用空间自相关... 详细信息

客观认知畜牧业碳动态及其时空格局是夯实区域畜牧业低碳和生态化发展的科学基础。本研究基于2000-2020年甘南黄河水源补给区县域尺度的畜牧业生产投入数据,运用全生命周期法估算畜牧业碳足迹,揭示其时空变化和结构特征,应用空间自相关分析探讨畜牧业碳足迹的空间格局。结果表明:1)甘南黄河水源补给区畜牧业碳足迹整体呈上升态势,年均增长率为1.80%,且历经快速增长-缓慢下降后回升-波动下降3个时序变化阶段。2)产中环节的牲畜肠胃发酵和粪便管理环节产生的大量CH_(4)、N_(2)O是温室气体“俱乐部”,羊、牛的CH_(4)、N_(2)O排放量不断增加且远高于其他牲畜。3)玛曲县一直是畜牧业碳足迹的超重型区,重型区演化表现出波动态势,但主要集中于碌曲县和夏河县,临夏县、积石山县、和政县畜牧业碳足迹处于轻型,合作市、卓尼县、临潭县则处于中型排放;畜牧业碳足迹总量由大到小依次为牧区>农区>半农半牧区。4)补给区畜牧业碳足迹总体空间格局呈现“北冷南热”“西热东冷”的特征;县域尺度下,玛曲县、碌曲县是高碳集聚区,合作市、和政县、康乐县呈“低碳锁定”效应。因地制宜制订差异化的区域畜牧业发展策略,有助于推动减少畜牧业碳足迹数量以实现畜牧业低碳转型。

关键词：碳足迹温室气体全生命周期法畜牧业时空格局甘南黄河水源补给区

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金融风险如何指导公司治理结构调整?——来自隐性金融风险的证据

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河北法学 2024年第1期42卷 187-200页

作者：杨强强武汉大学国际法研究所湖北武汉430072

历史经验表明,金融监管通常仅能治理显性金融风险,而暗中积聚、叠加的隐性金融风险常被忽视。这要求转变金融监管主治传统模式,发挥内生性公司治理之于隐性金融风险的作用,强化股东对公司治理的参与责任,通过有效践行股东积极主义,发挥... 详细信息

历史经验表明,金融监管通常仅能治理显性金融风险,而暗中积聚、叠加的隐性金融风险常被忽视。这要求转变金融监管主治传统模式,发挥内生性公司治理之于隐性金融风险的作用,强化股东对公司治理的参与责任,通过有效践行股东积极主义,发挥股东揭示隐性金融风险促成其显性化的特殊价值,在内外双层治理框架下形成股东有效参与、公司组织机构完善和外部金融监管三者有效配合、协同发展的三维互动新格局。

关键词：隐性金融风险公司治理股东积极主义公司法修改

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