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Journal of Systems Science and Information 2024年第1期12卷 125-144页

作者： jing XUE Zefu tan Nina DAI Guoping LEI Chao HE Chongqing Three Gorges University Chongqing 404020China

Mountain cities are complex asymmetric dynamic network architectures,and the flight of UAVs in this environment is subject to various constraints,while efficiency is a crucial factor in the trajectory planning of police UAVs,which need to maintain high efficiency and safe flight paths between their starting and ending points,but the traditional trajectory planning method cannot meet the requirements of rapid maneuvering of police *** achieve this,a 3D terrain map is built,an objective function is established for the flight cost in the UAV trajectory planning process,and a planning algorithm called particle swarm optimization bat algorithm(PSOBA)is *** combines the characteristics of the bat algorithm(BA)and the particle swarm optimization algorithm(PSO)to improve population diversity and resolve the delayed convergence issue in the last phases of *** results show that PSOBA is more effective than BA,with a search time for the best solution that is approximately 20.43%shorter and a convergence value of the objective function that is approximately 38%*** is also able to plan a quicker,shorter,and safer flight path compared to other trail planning algorithms that enhance the bat *** findings suggest that PSOBA is a powerful algorithm with potential application value in UAV trajectory planning control in the mobile intelligence *** to the service of public social security.

关键词： hilly cities police drones asymmetrical trajectory planning particle swarm bat algorithm

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可吸收载药手术缝合线制备技术研究进展

合成纤维 2024年第6期53卷 42-47,62页

作者：谭晶付宏岩王宇航王智李好义徐锦龙北京化工大学有机无机复合材料国家重点实验室北京100029 北京化工大学机电工程学院北京100029 江苏新视界先进功能纤维创新中心有限公司江苏苏州215228

可吸收载药手术缝合线已在医学缝合领域得到广泛应用,在业界展现了巨大的实践价值,并呈现出巨大潜力与广阔前景。回顾了可吸收缝合线的发展历程,详细介绍了可吸收载药手术缝合线的原材料、制备方法和载药方式。研究表明,可吸收载药手术... 详细信息

可吸收载药手术缝合线已在医学缝合领域得到广泛应用,在业界展现了巨大的实践价值,并呈现出巨大潜力与广阔前景。回顾了可吸收缝合线的发展历程,详细介绍了可吸收载药手术缝合线的原材料、制备方法和载药方式。研究表明,可吸收载药手术缝合线是未来手术缝合线的发展方向,它们具有一定的强度并能递送药物,兼具可降解的特性,虽然可吸收载药缝合线性能优良,但仍需要在材料、工艺上改进以获得更好的发展。

关键词：可吸收缝合线载药力学性能生物相容性医用纺织品

Multi-sources information fusion algorithm in airborne detection systems

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Journal of Systems Engineering and Electronics 2007年第1期18卷 171-176页

作者： Yang Yan jing Zhanrong Gao tan Wang Huilong Coll. of Electronic Information Engineering Northwestern Polytechnical Univ. Xi'an 710072 P. R. China

To aim at the multimode character of the data from the airplane detecting system, the paper combines Dempster- Shafer evidence theory and subjective Bayesian algorithm and makes to propose a mixed structure multimode data fusion algorithm. The algorithm adopts a prorated algorithm relate to the incertitude evaluation to convert the probability evaluation into the precognition probability in an identity frame, and ensures the adaptability of different data from different source to the mixed system. To guarantee real time fusion, a combination of time domain fusion and space domain fusion is established, this not only assure the fusion of data chain in different time of the same sensor, but also the data fusion from different sensors distributed in different platforms and the data fusion among different modes. The feasibility and practicability are approved through computer simulation.

关键词：机载探测系统多源数据融合贝叶斯算法多传感器敌我识别

A layered multifunctional framework based on polyacrylonitrile and MOF derivatives for stable lithium metal anode

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Journal of Energy Chemistry 2024年第6期93卷 282-288,I0007页

作者： Fanfan Liu Peng Zuo jing Li Pengcheng Shi Yu Shao Linwei Chen Yihong tan Tao Ma Engineering Research Center of High-frequency Soft Magnetic Materials and Ceramic Powder Materials of Anhui Province School of Chemistry and Material EngineeringChaohu UniversityHefei 238024AnhuiChina Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical EngineeringShanghai Jiao Tong UniversityShanghai 200240China School of Pharmacy Anhui University of Chinese MedicineHefei 230012AnhuiChina School of Materials and Energy Guangdong University of TechnologyGuangzhou 510006GuangdongChina Jiujiang DeFu Technology Co. Ltd.Jiujiang 332000JiangxiChina

Composite Li metal anodes based on three-dimensional(3D) porous frameworks have been considered as an effective material for achieving stable Li metal batteries with high energy ***,uneven Li deposition behavior still occurs at the top of 3D frameworks owing to the local accumulation of Li *** promote uniform Li deposition without top dendrite growth,herein,a layered multifunctional framework based on oxidation-treated polyacrylonitrile(OPAN) and metal-organic framework(MOF) derivatives was proposed for rationally regulating the distribution of Li ions flux,nucleation sites,and electrical *** from these merits,the OPAN/carbon nano fiber-MOF(CMOF) composite framework demonstrated a reversible Li plating/stripping behavior for 500 cycles with a stable Coulombic efficiency of around 99.0% at the current density of 2 mA/cm~***,such a Li composite anode exhibited a superior cycle lifespan of over 1300 h under a low polarized voltage of 18 mV in symmetrical *** the Li composite anode was paired with LiFePO_(4)(LFP) cathode,the obtained full cell exhibited a stable cycling over 500 ***,the COMSOL Multiphysics simulation was conducted to reveal the effects on homogeneous Li ions distribution derived from the above-mentioned OPAN/CMOF framework and electrical insulation/conduction *** electrochemical and simulated results shed light on the difficulties of designing stable and safe Li metal anode via optimizing the 3D frameworks.

关键词： Lithium metal anode Layered multifunctional framework Ions flux redistribution Electrical insulation/conduction structure Uniform Li deposition

基于集成学习的万古霉素血药浓度及不良反应预测研究

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中南药学 2024年第6期22卷 1645-1651页

作者：黄魏李逃明路经纬向瑜李凡董李晨谭净文杨中保左美玲旷达彬湖南师范大学附属长沙医院长沙410006 湖南师范大学医学院长沙410006 中南大学计算机学院长沙410006

目的建立万古霉素血药浓度及不良反应预测的集成学习模型,为万古霉素的个体化用药提供参考。方法采集2021年至2023年湖南师范大学附属长沙医院患者的相关数据。使用逻辑回归、朴素贝叶斯、随机森林、支持向量机、梯度提升决策树、极端... 详细信息

目的建立万古霉素血药浓度及不良反应预测的集成学习模型,为万古霉素的个体化用药提供参考。方法采集2021年至2023年湖南师范大学附属长沙医院患者的相关数据。使用逻辑回归、朴素贝叶斯、随机森林、支持向量机、梯度提升决策树、极端梯度提升6种机器学习算法分别建模,同时构造集成学习模型,选择最优特征子集,比较各模型预测能力。结果共纳入205例病例,基于最优特征子集的集成学习模型预测性能最佳。该模型血药浓度预测均方根误差为7.703,平均绝对误差为6.492;不良反应预测准确度为0.951,F_(1)分数为0.750,AUC为0.959,AUPR为0.850。结论基于最优特征子集的集成学习模型可准确预测万古霉素血药浓度及不良反应,为万古霉素的个体化精准用药提供依据,确保万古霉素抗感染治疗的有效性及安全性。

关键词：万古霉素血药浓度预测不良反应预测机器学习集成学习特征选择

Conjugated microporous polymers with distinctive π-electronic properties exhibiting enhanced optical applications

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Chinese Chemical Letters 2016年第8期27卷 1405-1411,1470页

作者： jing tan Wu-Ji Chen Jia Guo State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science and Lab of Advanced MaterialsFudan University

The short review discusses a family of amorphous porous organic polymers,conjugated microporous polymer（CMP）,which is distinctive in fusion of a large π-electronic conjugation within the topological network *** kind of polymers has shown the synthetic variety,the advanced capability and the wide applicability in contrast to the reported ***,the significant progress of CMP applications has been summarized to showcase their capability in constructing photo-functional systems.

关键词： Conjugated polymers Porous materials Light harvesting Photocatalysis Optoelectronics Chemosensor Phototherapy

网络使用对老年人认知功能的影响研究——基于抑郁和失能的链式中介作用

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现代预防医学 2024年第6期51卷 1057-1062+1134页

作者：鞠洪鑫谭静李晓纯戚筱涵侯玉莹李秋莎赵兹旋杨辰啸鲁贝尹文强山东第二医科大学管理学院 “健康山东”重大社会风险预测与治理协同创新中心健康相关重大社会风险预警协同创新中心山东第二医科大学公共卫生学院

目的探究老年人网络使用与认知功能之间的关系。方法本文运用中国家庭追踪调查(CFPS)2020年数据，使用IADL量表、流动中心抑郁自评量表分别测量老年人失能状况和抑郁状况；采用二列相关分析相关性；构建多重中介效应模型，研究老年人... 详细信息

目的探究老年人网络使用与认知功能之间的关系。方法本文运用中国家庭追踪调查(CFPS)2020年数据，使用IADL量表、流动中心抑郁自评量表分别测量老年人失能状况和抑郁状况；采用二列相关分析相关性；构建多重中介效应模型，研究老年人使用网络对老年人认知功能影响的中介路径。结果在控制年龄、性别、婚姻状况、代际支持后，回归结果显示是否使用网络对老年人认知功能的直接影响显著(β=0.688,t=7.36,P<0.001);抑郁状况和失能状况显著影响老年人认知功能(β=-0.018,t=-2.69,P<0.05;β=-0.114,t=-4.83,P<0.001)。中介效应分析结果显示，抑郁状况和失能状况在网络使用和老年人认知功能之间的简单中介效应分别为0.044(95%CI:0.011 3～0.083 4)和0.040(95%CI:0.015 8～0.064 2),链式中介效应为0.006(95%CI:0.000 4～0.013 2)。结论抑郁状况和失能状况在是否使用网络和老年人认知功能之间存在中介效应，且抑郁和失能在是否使用网络影响老年人认知功能中存在链式中介效应。随着互联网的普及，应促进老年人互联网的使用，同时应注重老年人的身心健康，以此保护老年人认知功能，延缓或防止老年人认知障碍的发生。

关键词：网络使用老年人认知功能 CFPS数据库中介分析

Toward understanding the microstructure characteristics,phase selection and magnetic properties of laser additive manufactured Nd-Fe-B permanent magnets

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International Journal of Extreme Manufacturing 2024年第1期6卷 277-294页

作者： Bo Yao Nan Kang Xiangyu Li Dou Li Mohamed EL Mansori jing Chen Haiou Yang Hua tan Xin Lin State Key Laboratory of Solidiffcation Processing Northwestern Polytechnical UniversityXi’anShaanxi 710072People’s Republic of China Arts et Metiers Institute of Technology MSMPHESAM UniversitéF-51006 Chˆalons-en-ChampagneFrance Key Laboratory of Metal High Performance Additive Manufacturing and Innovative Design MIIT ChinaNorthwestern Polytechnical UniversityXi’anShaanxi 710072People’s Republic of China Texas A&M Engineering Experiment Station Institute for Manufacturing SystemsCollege StationTX 77843United States of America

Nd-Fe-B permanent magnets play a crucial role in energy conversion and electronic *** essential magnetic properties of Nd-Fe-B magnets,particularly coercivity and remanent magnetization,are significantly infuenced by the phase characteristics and *** this work,Nd-Fe-B magnets were manufactured using vacuum induction melting(VIM),laser directed energy deposition(LDED)and laser powder bed fusion(LPBF)*** evolution and phase selection of Nd-Fe-B magnets were then clarified in *** results indicated that the solidification velocity(V)and cooling rate(R)are key factors in the phase *** terms of the VIM-casting Nd-Fe-B magnet,a large volume fraction of theα-Fe soft magnetic phase(39.7 vol.%)and Nd2Fe17Bxmetastable phase(34.7 vol.%)areformed due to the low R(2.3×10-1?C s-1),whereas only a minor fraction of the Nd2Fe14B hard magnetic phase(5.15 vol.%)is *** the LDED-processed Nd-Fe-B deposit,although the Nd2Fe14B hard magnetic phase also had a low value(3.4 vol.%)as the values of V(10-2m s-1)and R(1.45×106?C s-1)in the LPBF process resulted in the substantial formation of the Nd2Fe14B hard magnetic phase(55.8 vol.%)directly from the liquid,while theα-Fe soft magnetic phase and Nd2Fe17Bxmetastable phase precipitation are suppressed in the LPBF-processed Nd-Fe-B ***,crystallographic texture analysis reveals that the LPBF-processedNd-Fe-B magnets exhibit isotropic magnetic ***,the LPBF-processed Nd-Fe-B deposit,exhibiting a coercivity of 656 k A m-1,remanence of 0.79 T and maximum energy product of 71.5 k J m-3,achieved an acceptable magnetic perfor

关键词： laser additive manufacturing(LAM) Nd-Fe-B permanent magnets numerical simulation microstructure magnetic properties

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设计驱动乡村文旅融合创新发展策略研究

经济问题 2023年第9期 98-105页

作者：谭静山西财经大学文化旅游与新闻艺术学院山西太原030006

在当前全面推进乡村振兴的背景下,历史文化遗迹的保护利用和全面规划对于乡村文旅融合创新发展意义重大。在此过程中,设计策略驱动乡村建设,其基本范式应当首先服务地方村民和传承地域文化,跟乡村发生紧密关系并形成可持续的文旅资源,... 详细信息

在当前全面推进乡村振兴的背景下,历史文化遗迹的保护利用和全面规划对于乡村文旅融合创新发展意义重大。在此过程中,设计策略驱动乡村建设,其基本范式应当首先服务地方村民和传承地域文化,跟乡村发生紧密关系并形成可持续的文旅资源,从而催生乡村经济发展的内生动力,其策略本质是旅游消费对于乡村异质文化的挖掘与融入。山西芮城广仁王庙(俗称五龙庙)的开发个案展现出当设计策略介入历史文化遗存进行文旅开发时,要从传播策略、本土资源转化、乡村生态共生、文旅消费异质化特征等多方面着手,关注当地村落的社会、历史、文化、经济等多层面生态性关联,尤其要处理好文化遗存的保护与地方性、历史性知识的延续关系。

关键词：设计驱动乡村建设文旅融合创新发展文旅经济广仁王庙