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The pilot test of Pt-Pd and Pt-Rh feeds extracted and separated with a new sulfoxide extractant

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Rare Metals 2006年第2期25卷 99-105页

作者： ZHU Ping GU Guobang QU Zhiping huang yanfei YAO Wenxue College of Environment Science and Engineering Shanghai University Shanghai 200072 China Department of Applied Chemistry South China University of Technology Guangzhou 510640 China Institute of Material Reutilization of the Ministry of Internal Trade. Xuzhou 221006. China

Platinum, palladium and rhodium of the raw feeds extracted and separated with a new sulfoxide extractant （MSO） were studied in the paper. The pilot test results showed that the percentage extractions are more than 99% for platinum and palladium in Pt-Pd feed, and the percentage strippings are 100% and 99.2% with HCl and ammonia, respectively. The ratio of palladium to platinum is 0.0016 in stripping platinum solution, and the ratio of platinum to palladium is 0.0020 in stripping palladium solution. The percentage extraction of platinum is 99% in Pt-Rh feed, and the percentage stripping is 100%. The ratio of rhodium to platinum is 0.0002 in stripping platinum solution. Therefore, platinum, palladium, and rhodium feeds are separated effectively with MSO.

关键词： solvent extraction pilot test sulfoxide platinum group metals

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衰弱评估工具在基层医疗中的应用现状

中华全科医学 2024年第3期22卷 486-490页

作者：程连阮金婷梁镭黄燕飞李强翔宁夏医科大学第三临床学院宁夏老年疾病临床研究中心宁夏银川750001 宁夏回族自治区人民医院全科医学科宁夏银川750001 湖南省人民医院内分泌科湖南长沙410000

医学的进步使得人类的寿命不断增长,老年人群数目逐年增加,老龄化进程逐步加快,老年人机体功能逐渐衰退、应对应激能力下降,为此养老照护所需社会医疗负担日益加重。衰弱是一种常见的老年综合征,主要表现为机体生理储备能力的下降,可导... 详细信息

医学的进步使得人类的寿命不断增长,老年人群数目逐年增加,老龄化进程逐步加快,老年人机体功能逐渐衰退、应对应激能力下降,为此养老照护所需社会医疗负担日益加重。衰弱是一种常见的老年综合征,主要表现为机体生理储备能力的下降,可导致多种不良结局的发生,严重影响老年人的生活质量。随着全科医学的快速发展,基层医疗保健机构逐步成为老年患者享受健康服务的主战场,老年人被视为基层医疗机构管理的重点人群,全科医生早期识别并及时采取干预措施,积极改善老年人的功能状态,会减少因此带来的跌倒、感染、住院甚至死亡等不良事件的发生。由于衰弱的发生与发展机制尚未明确且相关研究有限,衰弱的识别与预测往往可以依靠衰弱评估工具来实现,因此选择适宜的衰弱评估工具极为重要。目前,国外对于衰弱评估工具的研究较早且较全面,在我国,基层医疗衰弱评估工具的研究处于起步阶段,尚未形成公认统一的衰弱评估工具的“金标准”。由此,本文通过回顾现有的国内外文献,对衰弱评估工具在基层医疗中的应用现状进行综述,分析各类衰弱评估工具的特点及适用场景,以期为充分发挥基层全科医生居民健康守门人的优势,延缓衰弱的发生发展,促进健康老龄化,提高老年人生活质量,减轻医疗负担,实现健康中国目标提供参考和依据。

关键词：衰弱评估工具基层医疗

Chemical profiling and rapid discrimination of Blumea riparia and Blumea megacephala by UPLC-Q-Exactive-MS/MS and HPLC

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Chinese Herbal Medicines 2023年第2期15卷 317-328页

作者： Hongna Su Xuexue Li Ying Li Yuanlin Kong Jianlong Lan yanfei huang Yuan Liu College of Pharmacy Southwest Minzu UniversityChengdu 610225China Key Laboratory of Qinghai-Tibetan Plateau Ethnic Medicinal Resources Protection and Utilization of National Ethnic Affairs Commission Chengdu 610225China Qiang Yi National Medicinal Resource Protection and Utilization Technology Engineering Laboratory of Sichuan Province Chengdu 610225China Institute of Qinghai-Tibetan Plateau Southwest Minzu UniversityChengdu 610225China Sichuan Ziyang Inspection and Testing Center for Food and Drug Control Ziyang 641399China

Objective:To rapidly identify the two morphologies and chemical properties of similar herbal medicines,Blumea riparia and *** as the basis for chemical constituent ***:UPLC-Q-Exactive-MS/MS was utilized for profiling and identification of the constituents in *** and *** pattern recognition(CPR)was further used to compare and distinguish the two herbs and to identify their potential characteristic ***,an HPLC method was established for quality ***:A total of 93 constituents are identified,including 54 phenolic acids,35 flavonoids,two saccharides,one phenolic acid glycoside,and one other constituent,of which 67 were identified in *** and *** for the first *** indicates that *** and *** samples can be distinguished from each other based on the LC–MS *** isochlorogenic acid A to cryptochlorogenic acid peak area ratio calculated from the HPLC chromatograms was proposed as a differentiation index for distinguishing and quality control of *** and ***:This study demonstrates significant differences between *** and *** in terms of chemical *** results provide a rapid and simple strategy for the comparison and evaluation of the quality of *** and ***.

关键词： Blumea riparia(Bl.)DC. Blumea megacephala(Randeria)Chang et Tseng chemical pattern recognition UPLC-Q-Exactive-MS/MS

基于任务清单的柔性拔牙CBL病例资料库的构建与应用价值

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云南医药 2024年第3期45卷 47-49页

作者：于鸿滨易春艳殷凌云黄燕飞李昌全欧阳骞昆明市延安医院/昆明医科大学附属延安医院口腔科云南昆明650051

目的探讨基于任务清单的柔性拔牙CBL病例资料库的构建与应用。方法本研究在开展柳传志环(PDF环)结合“以病例为引导”的教学法应用于牙槽外科临床带教的基础上,选择阻生牙微创拔除术为经典案例,应用于临床带教,开展柔性拔牙临床医学... 详细信息

目的探讨基于任务清单的柔性拔牙CBL病例资料库的构建与应用。方法本研究在开展柳传志环(PDF环)结合“以病例为引导”的教学法应用于牙槽外科临床带教的基础上,选择阻生牙微创拔除术为经典案例,应用于临床带教,开展柔性拔牙临床医学人文教育。结果构建基于任务清单的柔性拔牙CBL病例资料库具有较强的临床实用性和较好的客观性,对实习医师医学人文素养的培育、临床思维能力的培养、自我学习能力的激发、发散思维模式的训练、知识体系的逻辑性归纳等方面有着明显优势。结论本研究基于任务清单的柔性拔牙CBL病例资料库的构建具有较大的优势,能够使其成为带教教师不断学习和临床带教的手段,值得广泛应用于临床实习带教。

关键词：任务清单柔性拔牙病例资料库阻生牙医学人文教育

铌酸锂调控固态电解质电场结构促进锂离子高效传输

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Science China Materials 2024年第6期67卷 1947-1955页

作者：刘晓潼温博华钟贵明程醒简翠英郭勇黄妍斐马家宾史沛然陈立坤张丹丰吴士超柳明吕伟贺艳兵康飞宇 Shenzhen All-Solid-State Lithium Battery Electrolyte Engineering Research Center Institute of Materials Research(IMR)Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055China School of Materials Science and Engineering Tsinghua UniversityBeijing 100084China Laboratory of Advanced Spectro-electrochemistry and Li-ion Batteries Dalian Institute of Chemical Physics Chinese Academy of SciencesDalian 116023China Department of Mechanical Engineering York UniversityTorontoON M3J 1P3Canada Nanoyang Group State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China College of Materials Science and Engineering Shenzhen UniversityShenzhen 518055China

聚合物基固态电解质得益于其易加工性,最有希望应用于下一代固态锂金属电池.目前,聚合物基态电解质的离子电导率提升策略多为加入导锂陶瓷以构建离子传输通道,其提升程度有限.电场在锂离子输运过程中存在重要影响,目前研究中有关电场对... 详细信息

聚合物基固态电解质得益于其易加工性,最有希望应用于下一代固态锂金属电池.目前,聚合物基态电解质的离子电导率提升策略多为加入导锂陶瓷以构建离子传输通道,其提升程度有限.电场在锂离子输运过程中存在重要影响,目前研究中有关电场对锂离子传输的影响机制尚不明确.本文将兼具高离子电导率和高介电常数的铌酸锂嵌入聚偏氟乙烯基体中,设计了一种新型复合固态电解质.铌酸锂颗粒有效调节电解质内部电场结构,增强了离子输运方向电场强度,实现了离子电导率的大幅提升(7.39×10^(-4)S cm^(-1),25℃).该电解质匹配高镍正极和锂金属负极的固态电池可稳定循环1000次以上,容量保持率为72%.该研究为设计下一代固态锂电池用高离子电导复合固态电解质提供了新的策略.

关键词： lithium niobate solid-state electrolytes dielectric ceramics electric field regulation

低浓度阿托品控制青少年近视临床疗效的Meta分析

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国际眼科杂志 2024年第11期24卷 1784-1794页

作者：姜志东程连张勇梁镭阮金婷黄燕飞李亮亮中国广东省中山市人民医院南朗分院眼科 528400 宁夏医科大学中国宁夏回族自治区银川市750004 中国广东省深圳市大鹏新区医疗健康集团 528051 佛山爱尔眼科医院总院视光科中国广东省佛山市528000

目的:系统评价低浓度阿托品滴眼液控制青少年近视的疗效和安全性。方法:计算机检索Wanfang Data、CNKI、VIP、PubMed、Cochrane Library及Embase数据库,检索2010-01/2024-03有关低浓度阿托品滴眼液控制青少年近视的临床研究。由2名研究... 详细信息

目的:系统评价低浓度阿托品滴眼液控制青少年近视的疗效和安全性。方法:计算机检索Wanfang Data、CNKI、VIP、PubMed、Cochrane Library及Embase数据库,检索2010-01/2024-03有关低浓度阿托品滴眼液控制青少年近视的临床研究。由2名研究者独立筛选试验,提取资料,行偏倚风险及质量评价,采用Review Manager5.4软件进行Meta分析。结果:共纳入17篇文献,共计近视青少年3764例3952眼。Meta分析结果显示,与对照组相比,低浓度阿托品能有效减缓眼轴增长[MD=-0.15,95%CI(-0.20,-0.10),P<0.00001],显著控制等效球镜度变化[MD=0.39,95%CI(0.29,0.48),P<0.00001],对瞳孔直径[MD=0.80,95%CI(0.33,1.28),P=0.0010]和调节幅度[MD=-2.54,95%CI(-4.49,-0.60),P=0.01]具有明显影响。结论:低浓度阿托品对青少年近视眼轴长度、等效球镜度的控制有良好效果,能显著影响瞳孔直径和调节幅度,能有效延缓近视进展。

关键词：近视低浓度阿托品青少年疗效结果 Meta分析

Effects of Intelligent Irrigation on Photosynthetic Characteristics of Citrus Leaves and Fruit Quality

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Agricultural Biotechnology 2022年第4期11卷 36-39,42页

作者： Taiqing huang yanfei huang Dan LU Yaoxin LIU Agricultural Resource and Environment Research Institute Guangxi Academy of Agricultural SciencesNanning 530007China Agricultural Academy of Guangxi University Nanning 530004China Horticulture Research Institute Guangxi Academy of Agricultural SciencesNanning 530007China

[Objectives]This study was conducted to improve the water use efficiency and fruit quality of citrus,and realize the automatic irrigation and standardized production in citrus orchards.[Methods]With Orah as the research object,the effects of intelligent irrigation management in citrus orchards on citrus leaf chlorophyll content,photosynthetic characteristics and fruit quality were investigated by comparing with conventional farmer management.[Results]The smart irrigation measure in citrus orchards significantly increased the SPAD value of leaves at the maturation stage of citrus,and simultaneously significantly improved the photosynthetic rate,transpiration rate and stomatal conductance at the flower bud differentiation stage,as well as the photosynthetic rate,transpiration rate,stomatal conductance and intercellular CO_(2) concentration at the maturation ***,the effects on the photosynthetic characteristic indexes in the rainy season were not *** with conventional experience management,the smart irrigation management measure of citrus orchards increased the edible rate and juice rate of citrus by 4.53 and 3.69 percentage points,respectively,and increased soluble solids,total sugar,vitamin C and sugar-acid ratio by 16.75%,20.86%,24.10%and 13.17%,respectively.[Conclusions]The smart irrigation management fully met the water demand for citrus growth due to timely irrigation,significantly improved the photosynthesis indicators of citrus leaves during drought,and significantly improved the quality of citrus.

关键词： Photosynthetic characteristics Citrus quality Smart irrigation SPAD value Citrus orchard

Flexible mille-feuille structure electromagnetic interference shielding film with excellent thermal conductivity and Joule heating

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Nano Research 2024年第5期17卷 4544-4554页

作者： Dingwen Yin Huijuan Xiu Simin Wang yanfei Pan Na Li Rui Cheng Shaoyan huang Sha Fan Jinbao Li College of Bioresources Chemical&Materials Engineering Shaanxi University of Science&TechnologyXi'an 710021China National Demonstration Center for Experimental Light Chemistry Engineering Education Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper DevelopmentXi'an 710021China College of Material Science and Art Design Inner Mongolia Agricultural UniversityHohhot 010018China

The intelligent electronic devices have urgent demands for electromagnetic interference(EMI)shielding films with excellent heat dissipation ***,it is challenging to obtain excellent EMI shielding and thermal conductivity performances ***,inspired by mille-feuille structure,the multifunctional EMI shielding films developed by a layer-by-layer self-assembly and hot-pressing *** ingenious introduction of silver nanoparticles(AgNPs)with large specific surface area and highly conductive into the network formed by TEMPO-oxidized cellulose nanofibrils(TOCNFs)with large aspect ratio to form the TOCNFs/*** the graphene nanoplates(GNPs)with high conductivity loss distributed alternately with TOCNFs/AgNPs to construct mille-feuille structure,which had highly efficient conductive network,complete thermally conduction pathway and rich heterogeneous ***,the designed films presented high electrical conductivity of 8520 S/cm,superb EMI effectiveness(SE)of 98.05 dB,and excellent thermal conductivity of 18.82 W/(m·K).Furthermore,the films possessed outstanding Joule heating performances with low voltages,including high heating temperature(100℃),fast response time(<20 s),and impressive heating stability and ***,such high-performance EMI shielding films with fascinating thermal conductivity and Joule heating performances have substantial application in flexible electronics,electromagnetic waves shielding and thermal management.

关键词： TEMPO-oxidized cellulose nanofibrils/silver nanoparticles(TOCNFs/AgNPs) mille-feuille structure electromagnetic interference shielding thermal conductivity Joule heating

Status of Soil Nutrients in Citrus Orchards of Guangxi

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Agricultural Biotechnology 2019年第1期8卷 150-151,155页

作者： Yuyi huang Guifen CHEN yanfei huang Liumei XIONG Bin LIU Agricultural Resource and Environment Research Institute Guangxi Academy of Agricultural Sciences

Based on the investigation of 56 soil samples( 0-30 cm) in citrus orchards of Guangxi,the content of soil organic matter and available nutrients as well as their correlations in the citrus orchards were studied. The results showed that soil was rich in organic matter,and the proportion of soil samples deficient in available N,P and K was 30. 36%,32. 14% and 28. 57% respectively. Soil was seriously deficient in soil available Ca,Mg and B,while the content of soil available Fe and Cu in soil was too high. There were significant or extremely significant positive or negative correlations between soil pH,organic matter and several available nutrients. It is recommended to apply Mg fertilizer,B fertilizer,lime or other alkaline fertilizer and reduce the spraying of fungicides containing Cu in the citrus orchards.

关键词： Citrus orchards Soil available nutrients Content Guangxi