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Multidisciplinary and multiscale nanoscience research roadmap based on large scientific facilities

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Science china Chemistry 2024年第8期67卷 2497-2523页

作者： Yuan Zeng Shuhan Zhang Yuecong Guo Yalin Cong Xu Ding Peihua Li Yunxiang Lin Wenzhi Ren Hui Su Weigang sun Liuxin Xu Guikai Zhang Shihua chen Yu chen Weiren cheng Shengqi Chu Yong Guan Jinru Han Jie Lin Hengjie Liu Zheyi Liu Pan Luo Fanchun Meng Sicong Qiao Zongyin Song Ying wang Zhao Wu chenyu Yang Meng Yang Shirui Yang Zi Yin Zhibin Yin Pengjun Zhang Hongyu Zhang Pingping Zheng Jia Zhou Wanlin Zhou Pengfei An He cheng Chunhai Fan Xingjiu Huang Yong Lei Lina Li Mu Li Qinghua Liu Shuming Peng Li Song Zhihu sun Yangchao Tian Fangjun wang Lihua wang Liming wang Shiqiang Wei Aiguo Wu Chunlei Xiao Xueming Yang Panchao Yin Jing Zhang Mingxin Zhang Yaling wang Chunying chen CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety New Cornerstone Science LaboratoryNational Center for Nanoscience and TechnologyBeijing 100190China university of Chinese Academy of Sciences Beijing 100049China National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei 230029China Institute of Solid State Physics Hefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China Institutes of Physical Science and information technology Anhui UniversityHefei 230601China Ningbo Key Laboratory of Biomedical Imaging Probe Materials and technology Zhejiang International Cooperation Base of Biomedical Materials Technology and ApplicationCAS Key Laboratory of Magnetic Materials and DevicesNingbo Cixi Institute of Biomedical EngineeringZhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China Advanced Energy Science and technology Guangdong Laboratory Huizhou 516000China college of Chemistry and Chemical engineering Hunan Normal UniversityChangsha 410081China State Key Laboratory of Luminescent Materials and Devices South China Advanced Institute for Soft Matter Science and TechnologySouth China University of TechnologyGuangzhou 510640China Beijing Synchrotron Radiation Facility Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China CAS Key Laboratory of Separation Sciences for Analytical Chemistry Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China Institute of Advanced Science Facilities Shenzhen 518107China State Key Laboratory of Coal Conversion Institute of Coal ChemistryChinese Academy of SciencesTaiyuan 030001China State Key Laboratory of Particle Detection and Electronics Institute of High Energy PhysicsChinese Acade

With the advancement of modern science and technology, large scientific facilities are increasingly oriented toward demand and application, and can be used for basic research as well as serving multiple disciplines. Developing large scientific facilities and related analytical technologies enhances understanding of large scientific facilities and popularizes their application in research across multiple disciplines. The combination of light or neutron sources from large scientific facilities and advanced analytical technologies can be achieved for materials structure information, dynamics study of chemical reactions, high dissociation of biomolecules, 3D visualization of energy materials or biological samples, etc. We first introduce the progress of domestic large scientific facilities of synchrotron radiation(SR) and free electron lasers(FELs) with different wavelengths and neutron *** further discuss the comparison between Chinese and typical foreign facilities in X-ray radiation from X-ray tubes, synchrotrons, X-ray FELs, and neutron sources based on physical parameters of light and neutron sources. In addition, we focus on the technological progress and perspectives combined with advanced X-ray radiation and neutron sources of large scientific facilities in china, especially in the nanoscience fields of energy catalysis and biological science. We hope that this roadmap will provide references on technology and methods to experimental users, as well as prospects for future development of technologies based on large research infrastructure facilities. Comprehensive studies and guidelines for basic research to practical application in various disciplines can be made with the assistance of large scientific facilities.

关键词： large scientific facilities synchrotron radiation FEL light sources neutron sources spectroscopic analysis methods X-ray imaging techniques structural information chemical dynamics

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

Global Adaptive Control of A Class of Uncertain Nonlinear Systems Using Neural Networks

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Global Adaptive Control of A Class of Uncertain Nonlinear Sy...

第二十七届中国控制会议

作者： chen pengnian1,Qin Huashu2,sun mingxuan3.1.Department of Mathematics,china Institute of Metrology,hangzhou 310018,P.R.china 2.Institute of Systems Science,The Chinese Academy of Sciences,Beijing 100080,P.R.china 3.college of information engineering,zhejiang Univewrsity of technology,hangzhou 3.0014,P.R.china

The paper considers the problem of global adaptive tracking for a class of uncertain nonlinear systems in which the uncertainty is impossible to be *** the help of the technique of unit partition in differential topology,a result on global approximation of function using neural networks is *** the result,a method of global adaptive neural network control for the uncertain nonlinear system is *** method ensures that the tracking error converges to an arbitrarily given small neighborhood of *** the tracked signal is constant,the tracking error converges to zero.

关键词： Nonlinear system Adaptive control Neural network

Non-destructive measurement of pear internal quality indices by visible and near-infrared spectrometric techniques

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Non-destructive measurement of pear internal quality indices...

The First International Conference on Computers and Computing Technologies in Agriculture

作者： LIU YAN-DE~(1,2,*) chen XING-MIAO~1 sun XU-DONG~1 YING YI-BIN~2 1 college of engineering Jiangxi Agricultural university Nanchang 330045,china 2 college of Biosystems and Food Science zhejiang university Hangzhuo 310029,china

The feasibility of non-destructive measurement of intemal quality indices of intact pear fruit using visible and near-infrared(Vis/NIR) spectrometric techniques was *** the wavelength region from 350 to 1800 nm,calibration models relating Vis/NIR spectra to soluble solids content (SSC) and firmness were developed based on multilinear regression(MLR),principal component regression (PCR) and partial least squares regression (PLSR) with respect to the logarithms of the reflectance reciprocal log(1/R),its first derivative D log (1/R) and its second derivative D log(1/R).The best combination,based on the reliable and robust models obtained,was the PLS models with respect to log (1/R) at an equatorial position of the *** with the PLS model with respect to log(1/R) resulted in correlation coefficients(r) of 0.9121 and 0.8541, and root mean standard error of prediction(RMSEP) of 0.6619 and 1.2324 for SSC and firmness, *** experimental results indicate that the Vis/NIR spectrometric technique could provide an accurate,reliable and non-destructive method for assessing internal quality indices of pear fruit, especially for SSC.

关键词： firmness multivariate calibration technique non-destructive measurement pear fruit soluble solids content visible and near-infrared spectrometric techniques

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基于CFD的住宅小区风环境研究

土木建筑工程信息技术 2009年第1期1卷 35-39页

作者：王旭孙炳楠陈勇楼文娟浙江大学结构工程研究所杭州310058 浙江大学宁波理工学院宁波315100

住宅小区的平面布局对于小区内人行高度处的室外风环境有着重要的影响。通过对一个由12幢建筑物组成的建筑群,采用基于Reynolds时均化方程(RANS)和Renorm alization group(RNG)k-ε湍流模型的数值模拟方法,得到小区的流场分布,以分析建... 详细信息

住宅小区的平面布局对于小区内人行高度处的室外风环境有着重要的影响。通过对一个由12幢建筑物组成的建筑群,采用基于Reynolds时均化方程(RANS)和Renorm alization group(RNG)k-ε湍流模型的数值模拟方法,得到小区的流场分布,以分析建筑群周围的风环境舒适性问题。改变相邻建筑物的左右距离和前后距离,比较不同布局下的风环境,获得了上述两个因素对于小区风环境的影响规律。

关键词：风环境舒适性数值模拟

Controlling the Microbial Contamination of RTE Foods during Processing and Selling Using the Principle of HACCP in Big Supermarket of Nanjing,china

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Controlling the Microbial Contamination of RTE Foods during ...

2012年环境污染与大众健康学术会议

作者： Shi Ruofu 1,2 , wang Shaokang 1 , chen Guowei 1 , sun Guiju 1 (responding author) 1 Key Laboratory of Environmental Medicine and engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Medical college, Southeast university Nanjing, P.R.china 2 Environment and Bioengineering Institute Nanjing university of Science and technology Nanjing, P.R.china

Hazard Analysis and Critical Control Point （HACCP） is a systematic intervention management on food safety. Under its principles we established a simple and flexible quality control measure to direct hygiene of ready-to-eat （RTE） foods during processing and selling. 8 kinds of RTE meat products, including Stewed Duck Gizzard, Saline Chicken Claws, Soy Sauced Chicken Wings, Spiced Beef, Sweet and Sour Spareribs, Meatball, Melopsittacus Packages of Meat, Braised Trotter in Red Sauce were collected from four large-scale supermarkets located in Nanjing, china. Knives, chopping boards, trays, shovels, air, water and cotton swab of hands of sales staff were sampled to analysis the total number of colonies, coliform, salmonella, Shigella, and Staphylococcus Aureus. In two supermarket measures for controlling microbial contamination in these 8 kinds of RTE meat products were carried out according to the HACCP principles. The critical control points （CCPs） includes material selection, containers hygiene, the amount of cooked meat in the one pot, the heating temperature, cooked food sales time and storage temperature, health habits of the sales staff. The following measures were adopted for controlling microbial contamination:the health education to the employees on food safety knowledge, the establishment and implementation of standard operation procedure （SOP） for the cleaning and disinfection, enactment of the CCPs critical limits and control measures. Another two supermarkets were as the control. After one month the samples of above 8 kinds of RTE meat products were collected again for the microbial determination. According to the Chinese national standard GB2726-2005 （Hygienic standard for cooked meat products）, the results showed the passing rates of RTE meat products before and after intervention in intervention supermarkets were 70.8% and 96.9% respectively, and there was significantly difference （p＜0.05）. However in the two control supermarkets, the passing rates of R

关键词： Microbial contamination control measure evaluation RTE foods processing and selling Funded by Jiang Su Province Soft Science Program (BR2004512 and BR2006020)

Analysis for Possible Source(s) of Bacteria Contamination of Ready-to-Eat Meat Products in Processing and Selling in Big Supermarket of Nanjing,china

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Analysis for Possible Source(s) of Bacteria Contamination of...

2012年环境污染与大众健康学术会议

作者： Shi Ruofu 1,2 , sun Guiju 1 (responding author), wang Shaokang 1 , Huang zongjun 2 , chen Guowei 1 1 Key Laboratory of Environmental Medicine and engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Medical college, Southeast university Nanjing, P.R.china 2 Environment and Bioengineering Institute Nanjing university of Science and technology Nanjing, P.R.china

8 kinds of ready-to-eat (RTE) meat products, including Stewed Duck Gizzard, Saline Chicken Claws, Soy Sauced Chicken Wings, Spiced Beef, Sweet and Sour Spareribs, Meatball, Melopsittacus Packages of Meat, Braised Trotter in Red Sauce were collected from four large-scale supermarkets located in Nanjing, china. To analysis possible sources of bacteria contamination of RTE food during the processing and subsequent selling,knives, chopping boards, trays, shovels, air, water and cotton swab of hands of sales staff were sampled, the total number of colonies, coliform, salmonella, Shigella, and Staphylococcus Aureus count were determined. The results showed that these RTE foods were contaminated by bacteria at different levels, overall passing rate was 68.8%, the over-limit ratio of the total number of colonies was 17.5%, the over-limit ratio of coliform took up 18.8% according to the Chinese national standard GB2726-2005 (Hygienic standard for cooked meat products). With regard to pathogen, the detection ratios of salmonella and Staphylococcus Aureus were 4.2% and 2.1% respectively. The results also showed that the bacteria contamination of cooked food was caused by the falling bacteria in the air in the producing and selling space, the clamps, chopping boards, knives, container of food and the hands of the operators. The total number of colonies in meat products positively correlated with the amount of cooked meat in the one pot (r=0.87728, P=0.0217), and negatively correlated with the maximum temperature in the center of the meat (r =-0.81633, P =0.0475). During the sales process of RTE foods, the passing rate was decreasing with the time, which the passing rate was just 60.6% at 4h. Our results suggest that the hygiene condition of selling in supermarket needed to be improved. The problem is to strengthen food safety education to employees and enhance their hygiene consciousness. Meanwhile the government should formulate the homemade cooked meat hygiene regulations and

关键词： Sources of contamination RTE meat products Processing and selling Supermarket Funded by Jiang Su Province Soft Science Program (BR2004512 and BR2006020)

基于全像面拟合的中阶梯光栅光谱仪谱图还原算法

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中国激光 2024年第8期51卷 253-266页

作者：崔涛尹禄孙亚楠陈建军周洋东韩龙飞王乐中国计量大学光学与电子科技学院浙江杭州310018 青岛理工大学信息与控制工程学院山东青岛266520

谱图还原算法是中阶梯光栅光谱仪高分辨的保障,其精度和速度的优化是推动仪器发展的关键。提出一种基于全像面拟合的谱图还原算法,将光谱标定融入到建模过程中的方式同时解决了环境改变和仪器扰动对模型精度的影响问题。首先建立初始模... 详细信息

谱图还原算法是中阶梯光栅光谱仪高分辨的保障,其精度和速度的优化是推动仪器发展的关键。提出一种基于全像面拟合的谱图还原算法,将光谱标定融入到建模过程中的方式同时解决了环境改变和仪器扰动对模型精度的影响问题。首先建立初始模型,利用光线追迹结果进行全像面拟合,获得标准模型。再利用Hg-Ar灯的特征谱线对标准模型进行二次拟合以修正偏差,从而完成光谱标定。最后采用多种元素灯的特征谱线对所提建模方法的精度进行验证。实验结果表明,所建立的谱图还原模型的全像面误差在2 pixel内,全波段波长平均提取误差为0.01 nm。所提方法将建模过程与标定技术相结合,使标定常态化,简化了建模流程,为中阶梯光栅光谱仪的应用推广提供了算法基础。

关键词：光谱学中阶梯光栅光谱仪谱图还原算法全像面拟合光谱标定

面向土地覆盖精准分类的遥感特征参数优选方法

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测绘学报 2024年第7期53卷 1401-1416页

作者：陈超梁锦涛杨刚孙伟伟龚绍军王建强苏州科技大学地理科学与测绘工程学院江苏苏州215009 中国地质大学(武汉)地球物理与空间信息学院湖北武汉430074 浙江海洋大学海洋科学与技术学院浙江舟山316022 宁波大学地理与空间信息技术系浙江宁波315211 浙江省水文地质工程地质大队浙江宁波315012

在显著气候变化叠加人类活动干扰的背景下,可持续的自然资源管理对于精准掌握土地覆盖信息的需求不断提升。为应对地表形态的复杂性、地物类型的多样性、遥感图像特征的非线性给传统遥感图像分类方法带来的挑战,本文基于随机森林Gini指... 详细信息

在显著气候变化叠加人类活动干扰的背景下,可持续的自然资源管理对于精准掌握土地覆盖信息的需求不断提升。为应对地表形态的复杂性、地物类型的多样性、遥感图像特征的非线性给传统遥感图像分类方法带来的挑战,本文基于随机森林Gini指数,提出了一种10%阈值决策的遥感特征参数优选方法,旨在筛选出最优的遥感特征参数组合,达到最佳土地覆盖分类效果。首先,选择光谱特征、纹理特征、温热特征、高程特征、主成分特征组成遥感影像堆栈。然后,设置多组决策树对特征贡献度进行交叉验证,并根据特征重要性的归一化均值确定特征排序。最后,设定阈值,筛选出符合要求的遥感特征参数,并迭代过程。选择覆盖江苏盐城自然保护区的Sentinel-2遥感图像开展试验,结果表明,本文方法筛选出的遥感特征参数代表性好,与CART、SVM、KNN和只使用波段信息的RF相比,分类结果地物边界清晰,类别属性准确,总体精度和Kappa系数分别为96.20%和0.9556。本文研究能够为区域空间规划和可持续发展提供技术支持。

关键词：土地覆盖分类随机森林特征优选递归特征消除 Gini指数