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基于KANO模型的乡村留守女童生理健康问题服务设计研究

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艺术与设计（理论版） 2024年第8期 45-48页

作者：薛嘉伟刘卓天津理工大学艺术学院天津300380

近年来社会各界对留守女童群体的关注逐渐增加,她们在成长中遇到的各类生理健康问题也逐渐暴露。文章在研究中聚焦这一群体,探究如何整合服务设计方法改善目前实际情况。生理健康困境不只是经济贫困和知识贫困,更是一种底层的系统性问... 详细信息

近年来社会各界对留守女童群体的关注逐渐增加,她们在成长中遇到的各类生理健康问题也逐渐暴露。文章在研究中聚焦这一群体,探究如何整合服务设计方法改善目前实际情况。生理健康困境不只是经济贫困和知识贫困,更是一种底层的系统性问题。这种生理健康困境带给她们的不仅是物质上的缺乏,更损害了她们的自我认知能力与情感体验。通过KANO模型分析乡村留守女童相关需求并将其分类排序,通过服务设计方法探索留守女童的生理健康问题解决策略,包括在教育中引入长辈角色,优化人力物力分配和联合社会力量,结合帮扶App设计用以联系社会各方面力量,共同守护留守女童。

关键词： KANO模型留守儿童服务设计女性健康

基于FDS模拟的大型会展中心主会议厅性能化防火设计研究

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南开大学学报（自然科学版） 2024年第1期57卷 15-20页

作者：薛家为吕志周黄鑫宋文华天津市南开区消防救援支队天津300010 天津市消防救援总队天津300090 应急管理部天津消防研究所天津300382 中国民航大学民航热灾害防控与应急重点实验室天津300300 天津工业大学环境科学与工程学院天津300387

在分析大型会展中心主会议厅防火分区、防火分隔与安全疏散设计的基础之上,基于其消防性能化防火设计目标、火灾增长速率分析和性能化防火设计的条件,采用FDS模拟对大型会展中心主会议厅发生火灾时的温度、烟气蔓延特性进行模拟分析,模... 详细信息

在分析大型会展中心主会议厅防火分区、防火分隔与安全疏散设计的基础之上,基于其消防性能化防火设计目标、火灾增长速率分析和性能化防火设计的条件,采用FDS模拟对大型会展中心主会议厅发生火灾时的温度、烟气蔓延特性进行模拟分析,模拟结果表明:在各消防设施有效动作的情况下,各设定火灾场景的人员可用疏散时间不小于1 200 s,大于720 s(12 min).在自动喷水灭火系统或排烟系统失效的情况下,人员可用疏散时间亦不低于1 076 s,大于720 s(12 min).在自动灭火系统和机械排烟系统均有效或者失效时,烟气均不会蔓延出会议厅而对其它区域的人员疏散造成影响.

关键词：大型会展中心会议厅性能化防火设计 FDS模拟消防设施动作或失效人员安全疏散

基于ResNet和简化注意力机制的光盘识别算法

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天津师范大学学报（自然科学版） 2024年第2期44卷 69-74页

作者：李彦宏薛佳炜郭光远林雨濛王淑琴天津师范大学计算机与信息工程学院天津300387

提出一种基于ResNet的简化注意力机制的光盘识别算法.该简化注意力机制对结构相似的中间层共享同一注意力块,既保留网络对重要信息域的特征提取能力,又避免了注意力滥用造成的分类准确率下降和内存负载问题.使用光盘数据集(Plate Datase... 详细信息

提出一种基于ResNet的简化注意力机制的光盘识别算法.该简化注意力机制对结构相似的中间层共享同一注意力块,既保留网络对重要信息域的特征提取能力,又避免了注意力滥用造成的分类准确率下降和内存负载问题.使用光盘数据集(Plate Datasets)进行实验,结果表明,简化注意力的模型识别准确率相比一般注意力机制均有一定提升,并将注意力机制造成的额外参数量降低了72%.此外,在3个公开的十分类数据集上验证了简化注意力机制的有效性.

关键词：图像分类简化注意力机制光盘识别

A Beautiful China Initiative Towards the Harmony between Humanity and the Nature

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Frontiers of Environmental Science & Engineering 2024年第6期18卷 33-41页

作者： Changbo Qin Qiang xue jiawei Zhang Lu Lu Shangao Xiong Yang Xiao Xiaojing Zhang Jinnan Wang Institute of Strategic Planning Chinese Academy of Environmental PlanningBeijing 100041China The Center for Beautiful China Chinese Academy of Environmental PlanningBeijing 100041China Chinese Academy of Environmental Planning Beijing 100041China

The Beautiful China Initiative(BCI)is a vivid embodiment of the harmonious coexistence between humans and nature during *** the BCI is an effective method for achieving the goals of building a beautiful China,while offering a“Chinese solution”to global sustainable *** article summarizes the progress and main experiences of the BCI,as well as analyzing the primary challenges facing its future ***,five policy recommendations are proposed,which emphasize the importance of top-level design,coordinated planning,and a robust support system in the implementation of the BCI.

关键词： Beautiful China Initiative Ecological civilization Practice Policy suggestion

A self-powered biosensor based on triboelectric nanogenerator for dual-specificity bacterial detection

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InfoMat 2024年第3期6卷 117-130页

作者： Wei Lu Xiaoqiang Wang Congyu Wang Ke Gong jiawei Li xue Li Peng Wang State Key Laboratory of Heavy Oil Processing College of Chemistry and Chemical EngineeringChina University of Petroleum(East China)Qingdaothe People's Republic of China Institute of Oceanology Chinese Academy of SciencesQingdaothe People's Republic of China School of Material Science and Engineering China University of Petroleum(East China)Qingdaothe People's Republic of China State Key Laboratory of Microbial Technology Shandong UniversityQingdaothe People's Republic of China Guangxi Academy of Sciences Nanningthe People's Republic of China

Pathogenic and corrosive bacteria pose a significant risk to human health or economic *** specific,sensitive,and on-site detection of these bacteria is thus of paramount significance but remains *** inspiration from immunoassays with primary and secondary antibodies,we describe here a rational design of microbial sensor(MS)under a dualspecificity recognition strategy using Pseudomonas aeruginosa(***)as the detection *** the MS,engineered aptamers are served as the primary recognition element,while polydopamine-N-acetyl-D-galactosamine(PDA-Gal NAc)nanoparticles are employed as the secondary recognition element,which will also generate and amplify changes in the output voltage sig*** achieve self-powering capability,the MS is constructed based on a triboelectric nanogenerator(TENG)with the specific aptamers immobilized on the TENG electrode *** as-prepared MS-TENG system exhibits good stability in output performance under external forces,and high specificity toward ***,with no cross-reactivity observed.A linear relationship(R^(2)=0.995)between the output voltage and *** concentration is established,with a limit of detection estimated at around 8.7×10^(3) CFU mL^(-1).The utilization of PDA-Gal NAc nanoparticles is found to play an important role in enhancing the specific and reliability of detection,and the underlying mechanisms are further clarified by computational *** addition,the MS-TENG integrates a wireless communication module,enabling real-time monitoring of bacterial concentration on mobile *** work introduces a pioneering approach to designing self-powered smart microbial sensors with high specificity,using a double recognition strategy applicable to various bacteria beyond ***.

关键词： bacterial detection high specificity microbial sensor triboelectric nanogenerator wireless transmission

Directing in-situ self-optimization of single-atom catalysts for improved oxygen evolution

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Journal of Energy Chemistry 2023年第5期80卷 284-290,I0007页

作者： Peiyu Ma Chen Feng Huihuang Chen jiawei xue Xinlong Ma Heng Cao Dongdi Wang Ming Zuo Ruyang Wang Xilan Ding Shiming Zhou Zhirong Zhang Jie Zeng Jun Bao Hefei National Research Center for Physical Sciences at the Microscale Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of SciencesKey Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education InstitutesDepartment of Chemical PhysicsUniversity of Science and Technology of ChinaHefei230026AnhuiChina National Synchrotron Radiation Laboratory iChEM(Collaborative Innovation Center of Chemistry for Energy Materials)University of Science and Technology of ChinaHefei 230026AnhuiChina

The demand for clean and sustainable energy has encouraged the production of hydrogen from water *** overcome the obstacle to improving the efficiency of water electrolyzers,it is highly desired to fabricate active electrocatalysts for the sluggish oxygen evolution ***,there is generally an intrinsic gap between the as-prepared and real electrocatalysts due to structure evolution under the oxidative reaction ***,we combine in-situ anionic leaching and atomic deposition to realize single-atom catalysts with self-optimized *** introduced F ions facilitate structural transformation from Co(OH)xF into CoOOH(F),which generates an amorphous edge surface to provide more anchoring sites for Ir single ***,the in-situ anionic leaching of F ions elevates the Co valence state of Ir_(1)/CoOOH(F)more significantly than the counterpart without F ions(Ir_(1)/CoOOH),leading to stronger adsorption of oxygenated *** revealed by electrochemical measurements,the increased Ir loading together with the favored adsorption of*OH intermediates improve the catalytic activity of Ir_(1)/CoOOH(F).Specifically,Ir_(1)/CoOOH(F)delivered a current density of 10 mA cm-2at an overpotential of 238 mV,being lower than 314 mV for Ir_(1)/*** results demonstrated the facility of the in-situ optimization process to optimize catalyst structure for improved performance.

关键词： Electrocatalysis Single-Atom Catalysis Self-Optimization Oxygen Evolution

Effects of Biochar Inoculation with Bacillus megaterium on Rice Soil Phosphorus Fraction Transformation and Bacterial Community Dynamics

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Rice science 2024年第4期31卷 361-365,I0001-I0003页

作者： YU Keru xue Zhaokun FANG Xianzhi MA jiawei WANG Yongjun LIU Dan YE Zhengqian State Key Laboratory of Subtropical Silviculture Zhejiang A&F UniversityHangzhou 311300China Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province Zhejiang A&F UniversityHangzhou 311300China Department of Forest Protection College of Forestry and BiotechnologyZhejiang A&F UniversityHangzhou 311300China

Rice husk biochar inoculated with Bacillus megaterium(BM)(referred to as BM-inoculated biochar, BMB) and uninoculated rice husk biochar(RHB) were added to soil at two rates(0.5%, as BMB1 and RHB1, respectively, and 1.0%, as BMB2 and RHB2, respectively) in an incubation experiment to comprehensively evaluate their effects on basic soil properties, phosphorus(P) fractions, bacterial community composition, and P-cycling genes.

关键词： soil comprehensive Transformation

Turán number of Berge linear forests in uniform hypergraphs

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Frontiers of Mathematics in China 2024年第1期19卷 25-35页

作者： Liying KANG jiawei HUANG Yisai xue Zhiwei WU Department of Mathematics Shanghai UniversityShanghai 200444China

Let F be a graph and H be a *** say that H contains a Berge-F If there exists a bijectionψ:E(F)→E(H)such that for Ve E E(F),e C(e),and the Turan number of Berge-F is defined to be the maximum number of edges in an r-uniform hypergraph of order n that is Berge-F-free,denoted by ex,(n,Berge-F).A linear forest is a graph whose connected components are all paths or isolated *** Ln,k be the family of all linear forests of n vertices with k *** this paper,Turan number of Berge-Ln,in an r-uniform hypergraph is *** r≥k+1 and 3≤r≤l[]=1,we determine 2 the exact value of ex,(n,Berge-Ln,)*** K-1≤r≤k,we 2 determine the upper bound of ex,(n,Berge-Ln,).

关键词： Uniform hypergraph Berge hypergraph linear forest Turán number

The variation of DOM during long distance water transport by the China South to North Water Diversion Scheme and impact on drinking water treatment

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Frontiers of Environmental Science & Engineering 2024年第5期18卷 85-100页

作者： Hankun Yang Yujuan Li Hongyu Liu Nigel J.D.Graham xue Wu jiawei Hou Mengjie Liu Wenyu Wang Wenzheng Yu State Key Laboratory of Environmental Aquatic Chemistry Key Laboratory of Drinking Water Science and TechnologyResearch Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing100085China School of Environment and Municipal Engineering Qingdao Technological UniversityQingdao266033China Colleges of Forestry Northeast Forestry UniversityHarbin150006China Department of Civil and Environmental Engineering Imperial College LondonSouth Kensington CampusLondonSW7 2AZUK School of Chemistry and Chemical Engineering Beijing Institute of TechnologyBeijing100081China State Key Laboratory of Separation Membrane Processes School of Environment Science and EngineeringTiangong UniversityTianjin300387China

In this study,samples were taken from three locations,upstream to downstream,along the central route project of the China South to North Water Diversion(SNWD)scheme in summer and *** were used to reveal the variations of dissolved organic matter(DOM)during the water transfer process,and the effects of these variations on drinking water treatment and disinfection by-products formation potential(DBPs-FP).The results showed that polysaccharides accumulate in summer and reduce in winter with flow distance,which has an important effect on the overall properties of DOM,as well as on the performance of coagulation,ultrafiltration,and the formation of *** substances,and their hydrophilic content,also increased in summer and decreased in winter with flow *** contrast,the concentration of small organic substances(MW≤1000 Da)increased in both summer and winter with flow distance,which affected both nanofiltration(NF)membrane fouling and *** results provide a useful case study of spatial and temporal changes in raw water DOM during long distance water transfer and their impact on the treatment and quality of drinking water from the SNWD.

关键词： Long-distance water transfer The China South to North Water Diversion Scheme Coagulation Membrane filtration Disinfection by-products