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Durable hierarchical phosphorus‐doped biphase MoS_(2)electrocatalysts with enhanced H^(*)adsorption

Carbon Energy 2024年第4期6卷 104-114页

作者： Yongteng qian Jianmin Yu zhiyi Lyu qianwen Zhang Tae Hyeong Lee Huan Pang Dae Joon Kang College of Pharmacy Jinhua PolytechnicJinhuaZhejiangChina Department of Physics Sungkyunkwan UniversitySuwonGyeonggi‐doRepublic of Korea International Collaborative Laboratory of 2D Materials for Optoelectronic Science and Technology of Ministry of Education Institute of Microscale OptoelectronicsShenzhen UniversityShenzhenGuangdongChina School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhouJiangsuChina

Phase engineering is an efficient strategy for enhancing the kinetics of electrocatalytic reactions.Herein,phase engineering was employed to prepare high‐performance phosphorous‐doped biphase(1T/2H)MoS_(2)(P‐BMS)nanoflakes for hydrogen evolution reaction(HER).The doping of MoS_(2)with P atoms modifies its electronic structure and optimizes its electrocatalytic reaction kinetics,which significantly enhances its electrical conductivity and structural stability,which are verified by various characterization tools,including X‐ray photoelectron spectroscopy,high‐resolution transmission electron microscopy,X‐ray absorption near‐edge spectroscopy,and extended X‐ray absorption fine structure.Moreover,the hierarchically formed flakes of P‐BMS provide numerous catalytic surface‐active sites,which remarkably enhance its HER activity.The optimized P‐BMS electrocatalysts exhibit low overpotentials(60 and 72 mV at 10 mA cm^(−2))in H_(2)SO_(4)(0.5 M)and KOH(1.0 M),respectively.The mechanism of improving the HER activity of the material was systematically studied using density functional theory calculations and various electrochemical characterization techniques.This study has shown that phase engineering is a promising strategy for enhancing the H*adsorption of metal sulfides.

关键词： 1T/2H MoS_(2) density functional theory electrocatalysts phase engineering phosphorous doping

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Injectable self-healing polysaccharide hydrogel loading CuS and pH-responsive DOX@ZIF-8 nanoparticles for synergistic photothermal-photodynamic-chemo therapy of cancer

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Journal of Materials Science & Technology 2022年第32期127卷 245-255页

作者： zhiyi qian Nuoya Zhao Chunyao Wang Weizhong Yuan School of Materials Science and Engineering Key Laboratory of Advanced Civil Materials of Ministry of EducationTongji UniversityShanghai 201804China Beijing Research Institute of Chemical Industry(BRICI) SinopecBeijing 100013China

The injectable self-healing polysaccharide hydrogel was prepared by the formation of Schiff base bonds between aldehyde-modified methylcellulose(MC–CHO)and carboxymethyl chitosan(CMC).The copper sulfide nanoparticles(CuS NPs)and pH-sensitive doxorubicin-loaded zeolitic imidazolate frameworks nanoparticles(DOX@ZIF-8 NPs)were prepared and could be well-dispersed into the hydrogel system.The presence of CuS NPs can achieve photothermal therapy(PTT)for tumors under the irradiation of the near-infrared(NIR)laser.Moreover,CuS NPs can generate photodynamic effects under NIR irradiation,converting oxygen into toxic reactive oxygen species(ROS)and presenting efficient photodynamic therapy(PDT).The DOX@ZIF-8 NPs can be decomposed under an intracellular acidic environment and realize the controlled release of DOX.The injectable self-healing hydrogel loading Cu S and DOX@ZIF-8 NPs can achieve synergistic photothermal-photodynamic-chemo therapy for tumors and will inspire the researchers to construct a platform from hydrogel combined with multifunctional nanomaterials to realize the effective multimodal therapy for tumor.

关键词： Injectable self-healing hydrogel Copper sulfide Zeolitic imidazolate frameworks Synergistic cancer therapy

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Understanding health literacy from a traditional Chinese medicine perspective

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Journal of Integrative Medicine 2023年第3期21卷 215-220页

作者： zhiyi qian Grace Y.Wang Marcus Henning Yan Chen Centre for Medical and Health Science Education University of AucklandAuckland 1010New Zealand School of Psychology and Wellbeing University of Southern QueenslandToowoombaQueensland 4350Australia

Health literacy is critical to improving individual and public health.However,indigenous perceptions of health are largely absent from Western-derived measurements,contributing to disparities in health outcomes between indigenous and non-indigenous populations.China is the country with the world's largest population and only officially introduced the term"health literacy"in 2008.Current measures of health literacy in China are primarily based on Western-derived constructs,which have been shown to have poor comparability to the unique dual medical system in China.Given its significant importance to health management globally,understanding health perceptions from a traditional Chinese medicine perspective is essential.This review explores the concept and core elements of indigenous health literacy,evaluates the existing definitions and measurement tools as applied to the concept,and proposes a new model of traditional Chinese medicine health literacy.

关键词： Traditional Chinesemedicine Health literacy Conceptual model Measurement

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人工智能的经济效应:现状、热点及展望——基于CiteSpace的文献综述

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科技管理研究 2024年第10期44卷 30-38页

作者：洪嵩盛思晗王茜王帅龚志毅浙江工业大学经济学院/全球浙商发展研究院浙江杭州310014 杭州电子科技大学管理学院浙江杭州310018 合肥工业大学经济学院安徽合肥230009

在有关人工智能对就业、产业融合、经济增长等方面的研究与日俱增背景下,从人工智能对就业、经济增长、产业融合应用等多方面进行相关文献的综述。基于Web…of…Science和中国知网数据库2003—2022年的1…908篇中外文文献,从发文量、文... 详细信息

在有关人工智能对就业、产业融合、经济增长等方面的研究与日俱增背景下,从人工智能对就业、经济增长、产业融合应用等多方面进行相关文献的综述。基于Web…of…Science和中国知网数据库2003—2022年的1…908篇中外文文献,从发文量、文献刊载期刊、研究机构、合作网络、核心作者等角度,利用CiteSpace软件对人工智能与经济发展相关研究进行文献计量和知识图谱分析,识别出该领域的研究热点和演进特征。在研究进程上,人工智能与经济发展相关研究于2017年后数量大幅增长,呈现跨学科多领域交叉特征,且国外跨学科合作相较于国内而言更加密切,国内相关研究合作网络尚处于初始构建阶段,成效尚不明显。在研究内容上,现有相关研究主要聚焦于探究人工智能对就业、产业融合及经济增长影响等三大领域,且尚未形成一致结论。在研究方法上,相关研究呈现出“定性—建模—实证”的发展脉络,实证研究渐成主流,但对于人工智能指标的选取及度量仍存在较大的局限性。未来可进一步围绕人工智能指标选取及测度、人工智能带来的创新模式改变及人工智能政策分析等开展研究。

关键词：人工智能经济效应就业产业融合经济增长文献综述 CiteSpace

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Multi objective optimization method for collision safety of networked vehicles based on improved particle optimization

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Journal of Control and Decision 2023年第1期10卷 134-142页

作者： zhiyi Huo Weize Liu qian Wang Hebei Vocational University of Technology and Engineering XingtaiPeople’s Republic of China

The crashworthiness and energy absorption optimization of automobile structure is an importantresearch content of the modern automobile industry. Facing the problem that traditionaloptimization methods are difficult to find the optimal solution for multi-objective parametersof vehicle structure crashworthiness problem, a multi-objective optimization method of vehiclecrash safety based on improved particle swarm optimization is proposed. Through the collectionand optimization of vehicle collision safety parameters, the vehicle structure performance isimproved, and the vehicle regression model is constructed. Using this method, the front-endstructure reinforcement of the vehicle is taken as the design variable. In order to realize themulti-objective optimization design method of vehicle collision safety, the multi-objective optimizationparameters of vehicle frontal collision and offset collision are taken as the objectivefunction. Finally, the simulation results show that the multi-objective optimization method basedon an improved particle swarm optimization algorithm has an obvious effect on the optimizationof vehicle structure crash safety.

关键词： Improved particle swarm optimization vehicle collision multi-objective optimization

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高分辨血管成像与定量方法研究进展(特邀)

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激光与光电子学进展 2024年第2期61卷 377-394页

作者：刘翊婕王春承孟佳钱书豪周凌熙陈灵美刘智毅浙江大学光电科学与工程学院浙江杭州310027

主要综述高分辨血管成像技术及其在生物医学领域中的应用,侧重评述适用于高分辨血管图像的定量表征方法。血管图像定量表征主要包括3个步骤:图像预处理、血管图像重建及定量特征获取、定量参数的统计学分析。同时,对每个步骤中所涉及的... 详细信息

主要综述高分辨血管成像技术及其在生物医学领域中的应用,侧重评述适用于高分辨血管图像的定量表征方法。血管图像定量表征主要包括3个步骤:图像预处理、血管图像重建及定量特征获取、定量参数的统计学分析。同时,对每个步骤中所涉及的算法流程、准确性评估及后续算法的优化方向进行详尽的阐述。此外,探讨多种血管和血流参数所反映的生物学信息在临床上的参考意义,并结合具体的疾病场景,介绍多参数分析模型在区分不同疾病发展阶段方面的能力。本文的阐述不仅体现了高分辨血管成像技术及定量表征方法的潜在价值,也展示了它们在推进生物医学基础研究和临床诊断等方面的光明前景。

关键词：医学和生物成像高分辨成像血管造影层析成像图像处理定量表征参数分析

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A Visualization Analysis of Medical and Prevention Fusion Research in China via CiteSpace

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China CDC weekly 2023年第23期5卷 519-524,I0001,I0002页

作者： Chen Jin Sijing Tu Yu qian Xiaoyu Chen zhiyi Peng Xiaohe Wang School of Public Health Hangzhou Normal UniversityHangzhou CityZhejiang ProvinceChina School of Public Health and Management Guangxi University of Chinese MedicineNanning CityGuangxi Zhuang Autonomous RegionChina

Since the 1990s,the acceleration of population aging has led to an increased prevalence of chronic diseases and enhanced public health awareness.Numerous countries have proposed healthcare reforms,with a focus on creating an“integrated care”model that aims to improve the quality of medical services and reduce costs(1–2).In 2008,the World Health Organization(WHO)put forward the concept of Integrated Delivery Systems(IDS),advocating for continuous,timely and integrated medical services.

关键词： services CiteSpace acceleration

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B、Zn元素掺杂力学增强型45S5生物活性玻璃支架

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功能材料 2024年第5期55卷 5106-5113页

作者：谢之逸赵庆娟潘家芳孙金超钱建明张晖桂林理工大学机械与控制工程学院广西桂林541000

对45S5生物活性玻璃多孔支架进行B、Zn元素的掺杂,B元素有效降低了熔融法制备生物活性玻璃的熔融温度,减轻了高温对45S5玻璃生物活性的损害,SEM观察到掺B后支架显微结构变得更加致密,抗压测试结果显示掺B的玻璃支架抗压强度是纯45S5玻... 详细信息

对45S5生物活性玻璃多孔支架进行B、Zn元素的掺杂,B元素有效降低了熔融法制备生物活性玻璃的熔融温度,减轻了高温对45S5玻璃生物活性的损害,SEM观察到掺B后支架显微结构变得更加致密,抗压测试结果显示掺B的玻璃支架抗压强度是纯45S5玻璃支架的2~3倍,可达9.68 MPa,表明了B对支架的力学性能亦有明显的提升作用。然而,掺入B元素会降低45S5玻璃支架的体外生物活性,过量的B掺杂还会导致支架被烧毁。在确定B元素的相对最佳掺杂浓度后,向玻璃支架中继续掺入Zn元素,能够提升支架的烧结稳定性,支架的抗压强度可继续增强,最优可达14.52 MPa,能与人体松质骨性能相匹配。同时,在SBF模拟体液中浸泡7天后支架的扫描电镜图展示了Zn元素的掺入,使得45S5玻璃支架的体外生物活性显著提升。总之,对45S5生物玻璃多孔支架进行B、Zn元素共掺,制备出了一种具有良好生物活性的力学增强型骨修复材料,具有一定骨组织工程运用价值。

关键词： 45S5生物活性玻璃骨组织工程硼锌元素掺杂力学增强型

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页岩气开采中典型重金属及无机物对周边环境的潜在影响

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天然气地球科学 2024年第4期35卷 718-728页

作者：宋之怡曾祥英张彪杨胜军宋谦肖时宇梁医于志强中国科学院广州地球化学研究所有机地球化学国家重点实验室广东广州510640 中国科学院深地科学卓越创新中心广东广州510640 中国科学院大学北京100049

页岩气开采在满足能源需求的同时也可能带来潜在环境风险。页岩气开采产生的岩屑和返排液携带了地层物质、添加剂及其可能的转化产物,其组成成分复杂,浓度差异显著,意外泄漏、不合理处理处置或者不达标排放容易对周边环境造成污染。研... 详细信息

页岩气开采在满足能源需求的同时也可能带来潜在环境风险。页岩气开采产生的岩屑和返排液携带了地层物质、添加剂及其可能的转化产物,其组成成分复杂,浓度差异显著,意外泄漏、不合理处理处置或者不达标排放容易对周边环境造成污染。研究选择典型的毒害重金属以及返排液中重要的无机离子为研究目标,评述岩屑和返排液中目标污染物的浓度水平和赋存特征,剖析它们进入周边环境的主要途径及潜在环境影响。同时,针对中国国内页岩气开采现状,就污染控制提出建议和研究展望,希望为中国页岩气开采中污染物防控和风险管理提供可借鉴的经验和教训。

关键词：页岩气环境影响重金属无机物

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The Gut Microbiome During Pregnancy

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Maternal-Fetal Medicine 2023年第1期5卷 36-43页

作者： Guoqing Jiang zhiyi Zhou Xiaojuan Li Yuan qian Kunhua Wang Department of Obstetrics The First Affiliated Hospital of Kunming Medical UniversityKunmingYunnan 650000China Yunnan KeyLaboratory of Laboratory Medicine KunmingYunnan 650000China Yunnan Institute of Experimental Diagnosis KunmingYunnan650000China Department of Clinical Laboratory The First Affiliated Hospital of Kunming Medical UniversityKunmingYunnan 650000China Yunnan Institute of Digestive Disease The First Affiliated Hospital of Kunming Medical UniversityKunmingYunnan 650000China Yunnan Engineering Technology Center of Digestive disease The First Affiliated Hospital of Kunming Medical UniversityKunmingYunnan 650000China.

Gut microbiota is symbiotic and interdependent with human body.Intestinal probiotics are colonized in the human gastrointestinal tract,which can improve the host intestinal microenvironment and enhance the intestinal function and immune function of the human body.A small number of opportunistic pathogens exist in the intestinal tract.Once the number of pathogens exceeds the threshold of intestinal tolerance,the intestinal micro-ecological balance can be destroyed,and various diseases may thus develop.Pregnancy is a special status with different physiologic changing stages.In the meanwhile,alterations in the gut microbiome populations occur,which can promote the differentiation,development,and maturation of fetal organs by affecting maternal metabolism.Compared with normal pregnant women,great changes in the gastrointestinal function and gut microbiome may take place in pregnant women with pregnancy-related complications,in which these changes include the number,species,and intestinal translocation.The composition of the maternal gut microbiome could contribute to pregnancy and obstetric outcomes,and long-term health of mother and child.The relationships of pregnancy to gut microbiome have attracted an increasing attention in recent years.This article will provide a summary review of the research studies of gut microbiome in normal pregnant women versus abnormal pregnancy women with complications.

关键词： Gastrointestinal microbiome HIV Metabolic diseases Pregnancy Preterm birth Probiotics

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