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A General Synthesis Method for Covalent Organic Framework and Inorganic 2D Materials Hybrids

Precision Chemistry 2024年第8期2卷 398-405页

作者： Yifan Zhu Yunrui Yan Yuren feng Yifeng liu Chen-Yang lin Qing Ai Tianshu Zhai Bongki Shin Rui Xu {4.chen Shen Qiyi Fang Xiang Zhang Dayanni Bhagwandin Yimo Han Hanyu Zhu Nicholas R.Glavin Pulickel M Ajayan Qilin li Jun Lou department of Materials Science and Nanoengineering Rice UniversityHoustonTexas 77005United States department of Civil and Environmental engineering Rice UniversityHoustonTexas 77005United States NSF Nanosystems engineering Research Center Nanotechnology-Enabled Water Treatment Rice UniversityHoustonTexas 77005United States UES Inc.BeavercreekOhio 45432United States Materials and Manufacturing Directorate Air Force Research LaboratoryWright-Patterson AFBOhio 45433United States department of Chemistry Rice UniversityHoustonTexas 77005United States

Two-dimensional(2D)inorganic/organic hybrids provide a versatile platform for diverse applications,including electronic,catalysis,and energy storage *** recent surge in 2D covalent organic frameworks(COFs)has introduced an organic counterpart for the development of advanced 2D organic/inorganic hybrids with improved electronic coupling,charge separation,and carrier ***,existing synthesis methods have primarily focused on few-layered film structures,which limits scalability for practical ***,we present a general synthesis approach for a range of COF/inorganic 2D material hybrids,utilizing 2D inorganic materials as both catalysts and inorganic building *** leveraging the intrinsic Lewis acid sites on the inorganic 2D materials such as hexagonal boron nitride(hBN)and transition metal dichalcogenides,COFs with diverse functional groups and topologies can grow on the surface of inorganic 2D *** controlled 2D morphology and excellent solution dispersibility of the resulting hybrids allow for easy processing into films through vacuum *** proof of concept,hBN/COF films were employed as filters for Rhodamine 6G removal under flow-through conditions,achieving a removal rate exceeding 93%.The present work provides a simple and versatile synthesis method for the scalable fabrication of COF/inorganic 2D hybrids,offering exciting opportunities for practical applications such as water treatment and energy storage.

关键词： Covalent organic frameworks Transition-metal dichalcogenides Lewis acid catalysts Hexagonal boron nitride Hybrid Materials

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Stability and Control of Network Congestion Control System

Stability and Control of Network Congestion Control System

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2009中国控制与决策会议

作者： Tao li~1,lingyun Wu~1,feng liu~2,Yanwu Wang~3,Chengjun Yang~4.Wu Zhang~5 1.College of {4.s and Information,Yangtze university,Jingzhou 4.4.23,china 2.Faculty of Mechanical and {4. Information engineering,china university of Geosciences, Wuhan 4.0074.china 3.department of Control Science and engineering,Huaz{14. university of science and technology, Wuhan 4.0074.china 4.Sichuan Logging Company Jiangbei District,C{14.qing 4.0021,china 5.Producing and running department,No.2 production plant,Kelamayi 834.08,china

＜正＞Network congestion control system can loss stabilities caused by bifurcations and chaos.A hybrid control method is presented for controlling bifurcations and chaos to stabilize network congestion control system ... 详细信息

关键词： Stability Control Network congestion control system Bifurcations Chaos

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压电陶瓷作动器的卡尔曼滤波输出反馈预测控制

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光学精密工程 2024年第11期32卷 1724-1735页

作者：于树友谭丽李建普冯阳阳刘冬梅林宝君孙绍瑜吉林大学控制科学与工程系吉林长春130012 重庆邮电大学工业物联网与网络化控制教育部重点实验室重庆400065 长春大学电子信息工程学院吉林长春130022

为了抑制压电陶瓷的迟滞、非线性特性对压电微定位平台精度的影响,建立反映压电陶瓷作动器频率依赖迟滞非线性特性的Hammerstein模型:利用非对称Bouc-Wen模型来表示静态迟滞非线性和利用动态线性模型表征信号频率的影响。针对迟滞补偿... 详细信息

为了抑制压电陶瓷的迟滞、非线性特性对压电微定位平台精度的影响,建立反映压电陶瓷作动器频率依赖迟滞非线性特性的Hammerstein模型:利用非对称Bouc-Wen模型来表示静态迟滞非线性和利用动态线性模型表征信号频率的影响。针对迟滞补偿器不能完全的进行补偿,并且存在噪音干扰实验设备,采用基于卡尔曼滤波的预测控制,提高压电微定位平台的控制精度。预测控制用来减小逆补偿误差以及建模误差等模型不确定性的影响,卡尔曼滤波用来获得系统的状态估计值。实验结果显示,该控制器在正弦波信号下的相对跟踪误差小于0.68%,三角波信号下相对跟踪误差小于0.70%。在迟滞补偿的基础上,采用卡尔曼滤波的预测控制,该方法可以有效地完成对微定位平台的高精度跟踪。

关键词：预测控制卡尔曼滤波压电陶瓷作动器 Hammerstein模型

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磁共振图像引导放射治疗技术在胰腺癌治疗中的临床应用

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中华放射肿瘤学杂志 2024年第4期33卷 371-377页

作者：刘亚昕刘敏郑人川辛欣杨凤冯玺黎杰王先良李林涛四川省肿瘤医院放疗科、电子科技大学附属肿瘤医院放射肿瘤学四川省重点实验室成都610041

胰腺癌是目前预后最差的实体肿瘤,相对于手术和化疗,放疗在胰腺癌治疗中的作用处于辅助地位。近年来,放疗技术出现了一些大的进展,这些进展逐步地在胰腺癌的诊疗过程中被应用。本文梳理了放疗技术在治疗胰腺癌方面的进展,重点介绍了磁... 详细信息

胰腺癌是目前预后最差的实体肿瘤,相对于手术和化疗,放疗在胰腺癌治疗中的作用处于辅助地位。近年来,放疗技术出现了一些大的进展,这些进展逐步地在胰腺癌的诊疗过程中被应用。本文梳理了放疗技术在治疗胰腺癌方面的进展,重点介绍了磁共振图像引导放疗技术在胰腺癌治疗中的临床应用,旨在帮助读者了解胰腺癌放疗方面的进展,并展望未来的发展方向,为提高胰腺癌患者的生存率提供参考。

关键词：胰腺肿瘤放射疗法,磁共振图像引导图像引导放射疗法,自适应

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Parallelized Jaccard-Based Learning Method and MapReduce Implementation for Mobile Devices Recognition from Massive Network Data

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china Communications 2013年第7期10卷 71-84页

作者：刘军李银周 Felix Cuadrado Steve Uhlig 雷振明 Beijing Key Laboratory of Network System Architecture and Convergence Beijing University of Posts and Telecommunications department of electronic engineering and Computer Science Queen MaryUniversity of London

The ability of accurate and scalable mobile device recognition is critically important for mobile network operators and ISPs to understand their customers' behaviours and enhance their user *** this paper,we propose a novel method for mobile device model recognition by using statistical information derived from large amounts of mobile network traffic ***,we create a Jaccardbased coefficient measure method to identify a proper keyword representing each mobile device model from massive unstructured textual HTTP access *** handle the large amount of traffic data generated from large mobile networks,this method is designed as a set of parallel algorithms,and is implemented through the MapReduce framework which is a distributed parallel programming model with proven low-cost and high-efficiency *** using real data sets show that our method can accurately recognise mobile client models while meeting the scalability and producer-independency requirements of large mobile network *** show that a 91.5% accuracy rate is achieved for recognising mobile client models from 2 billion records,which is dramatically higher than existing solutions.

关键词： mobile device recognition data mining Jaccard coefficient measurement distributed computing MapReduce

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Cuckoo search algorithm-based optimal deployment method of heterogeneous multistatic radar for barrier coverage

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系统工程与电子技术:英文版 2023年第5期34卷 1101-1115页

作者： li Haipeng feng Dazheng National Key Laboratory of Radar Signal Processing Xidian UniversityXi’an 710071China The 1st General department Xi’an Electronic Engineering Research InstituteXi’an 710100China

This paper proposes an optimal deployment method of heterogeneous multistatic radars to construct arc barrier coverage with location *** method analyzes and proves the properties of different deployment patterns in the optimal deployment *** on these properties and considering location restrictions,it introduces an optimization model of arc barrier coverage and aims to minimize the total deployment cost of heterogeneous multistatic *** overcome the non-convexity of the model and the non-analytical nature of the objective function,an algorithm combining integer line programming and the cuckoo search algorithm(CSA)is *** proposed algorithm can determine the number of receivers and transmitters in each optimal deployment squence to minimize the total placement *** are conducted in different conditions to verify the effectiveness of the proposed method.

关键词： heterogeneous multistatic radar(HMR) arc barrier coverage minimum deployment cost optimal deployment sequence cuckoo search algorithm(CSA)

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A common-gate bootstrapped CMOS rectifier for VHF isolated DC-DC converter

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Journal of Semiconductors 2017年第5期38卷 94-98页

作者： Dongfang Pan feng Zhang lu Huang Jinliang li department of electronic Science and Technology University of Science and Technology of China Institute of Automation Chinese Academy of Sciences

A common-gate bootstrapped CMOS rectifier dedicated for VHF（very high frequency） isolated DCDC converter is *** uses common-gate bootstrapped technique to compensate the power loss due to the threshold voltage,and to solve the reflux problem in the conventional rectifier *** a result,it improves the power conversion efficiency（PCE） and voltage conversion ratio（VCR）.The design saves almost 90%of the area compared to a previously reported double capacitor *** addition,we compare the previous rectifier with the proposed common-gate bootstrapped rectifier in the case of the same area;simulation results show that the PCE and VCR of the proposed structure are superior to other *** proposed common-gate bootstrapped rectifier was fabricated by using CSMC 0.5 μm BCD *** measured maximum PCE is 86%and VCR achieves 77%at the operating frequency of 20 *** average PCE is about 79%and average VCR achieves71%in the frequency range of 30-70 *** PCE and VCR have been improved compared to previous results.

关键词： CMOS rectifier circuit bootstrapped technique very high frequency PCE isolated DC-DC

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PREPARATION AND CHARACTERIZATION OF LA2O3 GATE DIELECTRIC BY LOW PRESSURE MOCVD

PREPARATION AND CHARACTERIZATION OF LA2O3 GATE DIELECTRIC BY...

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第8届国际材联电子材料国际研讨会

作者： Hui-Qin ling, Qi-Yue Shao, Ai-Dong li Di Wu, Yuan wang, Yan feng, Sen-Zhu Yang, Zhi-Guo liu, Mu Wang, Naiben Ming National Laboratory of Solid State Microstructure210093,. china Material Science and engineering Departm s, Nanjing university, Nanjing ent, Nanjing university, Nanjing 210093, china Physics department, Nanjing university, Nanjing, 210093,. china electronic Science and engineering department, Nanjing university, Nanjing 210093, china

As circuit densities increase, the need for high-density capacitances also increases in both mixed signal and memory circuits. Semiconductor Industry Association technology roadmaps predict the need for a sub-20A silicon oxide for a sub-0.1 μm CMOS. As conventional SiO gate dielectric scales down to less than 20A, a high leakage current is inevitable due to the occurrence of direct tunneling. The alternative dielectric

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长管贝壳杉素A通过PI3K/AKT/mTOR通路抑制结肠癌细胞活性

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消化肿瘤杂志（电子版） 2024年第1期16卷 42-49页

作者：李悦予冯霞南京医科大学附属脑科医院药学部江苏南京210029

目的探讨长管贝壳杉素A(longikaurin A,LK-A)对结肠癌细胞的抗肿瘤效应及其潜在的分子机制。方法将结肠癌HCT116、HT-29细胞分为对照组和实验组,其中对照组给予二甲亚砜溶剂,实验组给予不同浓度LK-A干预,采用CCK-8法评价细胞增殖能力,... 详细信息

目的探讨长管贝壳杉素A(longikaurin A,LK-A)对结肠癌细胞的抗肿瘤效应及其潜在的分子机制。方法将结肠癌HCT116、HT-29细胞分为对照组和实验组,其中对照组给予二甲亚砜溶剂,实验组给予不同浓度LK-A干预,采用CCK-8法评价细胞增殖能力,流式细胞仪分析细胞凋亡情况,以及裸鼠皮下移植瘤实验评价LK-A抑瘤效应,蛋白质印迹法检测PI3K/AKT/mTOR通路蛋白的变化。结果低浓度的LK-A对结肠癌细胞具有显著生长抑制和促进凋亡的作用。LK-A干预HCT116和HT-29细胞24.h的半抑制浓度(half maximal inhibitory concentration,IC50)分别为2.18μmol/L和1.4.μmol/L,4. h的IC50分别为0.88μmol/L和0.72μmol/L。在HCT116细胞中,2或4.mol/L LK-A干预24.h细胞凋亡率分别为(17.36±2.05)%和(34.75±7.01)%,高于对照组(6.60±1.10)%(P4.±1.65)%和(26.30±2.25)%,高于对照组(4.69±0.91)%(Plinositol-3 kinase,p-PI3K),磷酸化丝氨酸/苏氨酸蛋白激酶(phosphorylatedserine-threonine kinase,p-AKT)和磷酸化哺乳动物雷帕霉素靶蛋白(phosphorylated mammalian target ofrapamycin,p-mTOR)表达呈现明显下降趋势。添加AKT激活剂SC79后,LK-A对HCT116和HT-29细胞的增殖抑制和诱导凋亡能力明显下降。裸鼠实验结果提示LK-A具有明显的体内抑瘤作用。结论LK-A能抑制结肠癌细胞增殖和促进其凋亡发生,其作用机制与抑制PI3K/AKT/mTOR信号通路活化有关。

关键词：长管贝壳杉素A 结肠癌增殖凋亡

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Machine learning accelerated carbon neutrality research using big data-from predictive models to interatomic potentials

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Science china(Technological Sciences) 2022年第10期65卷 2274-2296页

作者： WU lingJun XU zhenming WANG ZiXuan CHEN ZiJian HUANG ZhiChao PENG Chao PEI XiangDong li XiangGuo MAILOA Jonathan P HSIEH Chang-Yu WU Tao YU Xue-feng ZHAO HaiTao Materials Interfaces Center Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China College of Materials Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing 210016China Multiscale Crystal Materials Research Center Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China College of Computer National University of Defense TechnologyChangsha 410073China School of Materials Shenzhen Campus of Sun Yat-sen UniversityShenzhen 518107China Quantum Laboratory TencentShenzhen 518057China china Beacons Institute The University of Nottingham Ningbo ChinaNingbo 315100China

Carbon neutrality has been proposed as a solution for the current severe energy and climate crisis caused by the overuse of fossil fuels, and machine learning(ML) has exhibited excellent performance in accelerating related research owing to its powerful capacity for big data processing. This review presents a detailed overview of ML accelerated carbon neutrality research with a focus on energy management, screening of novel energy materials, and ML interatomic potentials(MliPs), with illustrations of two selected MliP algorithms: moment tensor potential(MTP) and neural equivariant interatomic potential(NequIP). We conclude by outlining the important role of ML in accelerating the achievement of carbon neutrality from global-scale energy management, unprecedented screening of advanced energy materials in massive chemical space, to the revolution of atomicscale simulations of MliPs, which has the bright prospect of applications.

关键词： carbon neutrality machine learning big data molecular dynamics interatomic potentials

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