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Facile preparation and property analyses of L-CNc/SiO_(2)-based composite superhydrophobic coating

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Frontiers of Materials Science 2022年第4期16卷 37-47页

作者： Wentao HUANG qihui ye Changying REN Youwei LU Yuxin CAI Wenbiao ZHANG Jingda HUANG College of Chemistry and Materials Engineering Zhejiang A&F UniversityHangzhou 311300China

In recent years,superhydrophobic coatings have received extensive attention due to their functions of waterproof,antifouling,self-cleaning,***,wide applications of superhydrophobic coatings are still affected by their disadvantages of complex preparation,low mechanical properties,and poor ultraviolet(UV)*** this study,cellulose nanocrystal containing a small amount of lignin(L-CNC)/SiO_(2)composite particles were usedas the main material,polydimethylsiloxane(PDMS)as the adhesive and perfluorooctyltrichlorosilane(FOTS)as the modifier to prepare superhydrophobic coatings by a one-step spray *** resulted coating showed excellent superhydrophobicity(water contact angle(WCA)of 161°and slide angle(SA)of 7)and high abrasion resistance(capable of withstanding 50 abrasion cycles under the load of 50 g).Moreover,it still maintained good superhydrophobicity after 5 h of exposure to the UV light(1000 W),displaying its good UV *** study provides theoretical and technical referencefor thesimple preparationof organic-inorganic composite superhydrophobic coatings with high abrasion resistance and good UV resistance,which is beneficial to improving the practicability and broadening the application scope of superhydrophobic coatings.

关键词： uperhydrophobic coating L-CNc/SiO_(2) abrasion resistance UV resistance

High sensitive chiral molecule detector based on the amplified lateral shift in Kretschmann configuration involving chiral TDBCs

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Chinese Physics B 2021年第6期30卷 504-508页

作者： Song Wang qihui ye Xudong Chen Yanzhu Hu Gang Song School of Modern Post Beijing University of Posts and TelecommunicationsBeijing 100876China School of Science Beijing University of Posts and TelecommunicationsBeijing 100876China International School Beijing University of Posts and TelecommunicationsBeijing 100876China

We investigate a high sensitive chiral molecule detector based on Goos–Hanchen shift(S) in Kretschmann configuration involving chiral tri(diethylene glycol monobutyl) citrates(TDBCs). Fresnel equations and the stationary phase method are employed to calculate S. Due to the interaction between surface plasmon polaritons and chiral TDBCs, S with chiral TDBCs are amplified at near the resonant wavelengths of chiral TDBCs. Our calculation results show that although the difference between the resonant wavelengths of left and right TDBCs is 4.5 nm, the positions of the largest S for the structures with left TDBCs and right TDBCs do not overlap. S reaches 400 times(or 200 times) the incident wavelength around the resonant wavelength of left TDBCs(or right TDBCs). The difference of S with chiral TDBCs(?S) can reach400 times or 200 times the incident wavelength in certain conditions, which can be directly observed in experiments. Left TDBCs and right TDBCs are easily distinguished. There is an optimal thickness of the metal film to realize the largest difference of S between Kretschmann configurations with left TDBCs and right TDBCs. Furthermore, we discuss the oscillator strength f, which is mainly determined by TDBC concentration. We find that our proposed detector is quite sensitive with f. By changing f from 0.008 to 0.014 with the step of 0.002, the change of ?S is no less than five times the incident wavelength(2.9 μm). Our proposed structure is very sensitive to the chirality and the concentration of TDBCs and has potential applications in distinguishing the chirality detector.

关键词： surface plasmon polaritons chirality Goos–Hanchen shift

1-甲基环丙烯处理对红富士苹果贮藏品质的影响

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浙江大学学报（农业与生命科学版） 2020年第1期46卷 83-92页

作者：彭贞贞叶旗慧徐晓艳傅达奇中国农业大学食品科学与营养工程学院北京100083

以红富士苹果为研究对象,利用1.0μL/L 1-甲基环丙烯(1-methylcyclopropene,1-MCP)熏蒸苹果果实,通过定时测定果实硬度、可溶性固形物含量、可滴定酸含量、乙烯释放量、呼吸强度、花青素含量、总酚含量、类黄酮含量,研究1-MCP处理对红... 详细信息

以红富士苹果为研究对象,利用1.0μL/L 1-甲基环丙烯(1-methylcyclopropene,1-MCP)熏蒸苹果果实,通过定时测定果实硬度、可溶性固形物含量、可滴定酸含量、乙烯释放量、呼吸强度、花青素含量、总酚含量、类黄酮含量,研究1-MCP处理对红富士苹果贮藏期生理品质的影响。结果表明:1-MCP可明显延缓红富士苹果硬度和可滴定酸含量下降,在24 d时处理组红富士苹果果肉硬度比对照高13.54%,可滴定酸含量高31.78%;可延缓可溶性固形物含量上升,贮藏24 d时对照组红富士苹果果肉可溶性固形物含量比处理组高7.74%。同样,1-MCP处理可抑制红富士苹果乙烯释放量和呼吸强度(P<0.001),延缓贮藏后期果皮和果肉总酚及果皮花青素含量降低,并延缓贮藏后期果皮类黄酮含量上升。综上所述,1-MCP处理有效保持了红富士苹果采后贮藏品质,有利于采后短期常温贮藏,提升了果实经济价值。

关键词： 1-甲基环丙烯红富士苹果贮藏品质

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教学资源管理系统的设计与实现

科教导刊 2017年第4Z期 22-24页

作者：郄培郭凯叶起惠北京邮电大学国际学院北京102209

传统的教学资源管理已无法满足信息化社会的办公需求。本文首先分析了高校教学资源管理现状,指出了目前存在的问题;其次,提出了教学资源管理系统的总体架构,并阐述了各功能模块的设计;最后,介绍了基于二维码扫描的教室签到监控模块的实... 详细信息

传统的教学资源管理已无法满足信息化社会的办公需求。本文首先分析了高校教学资源管理现状,指出了目前存在的问题;其次,提出了教学资源管理系统的总体架构,并阐述了各功能模块的设计;最后,介绍了基于二维码扫描的教室签到监控模块的实现,以数据库为基础阐述了系统的整体实现,并说明了系统实现的其他相关技术。经测试本系统可以保证服务的稳定性,易于维护和扩展,提高了教学管理人员的工作效率。

关键词：教学资源二维码资源管理

面向大学生工程创新能力培养的数字化教学模式研究

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教书育人（高教论坛） 2023年第8期 108-112页

作者：郄培郭凯叶起惠北京邮电大学国际学院

社会对于高质量人才的需求日益增长,高校作为人才的主要输出来源,采用传统的教学模式已无法满足对创新人才的培养目标。本文旨在提出一个面向大学生工程创新能力培养的数字化教学模式,通过引入跨学科交叉融合的虚拟教研室,建立基于非线... 详细信息

社会对于高质量人才的需求日益增长,高校作为人才的主要输出来源,采用传统的教学模式已无法满足对创新人才的培养目标。本文旨在提出一个面向大学生工程创新能力培养的数字化教学模式,通过引入跨学科交叉融合的虚拟教研室,建立基于非线性规划的队伍组建模型,引入基于K-means聚类模型的智能教育助理,最终实现集“强化团队优势能力”和“补足个人短板能力”于一体的“强优补短”创新人才培养目标。

关键词：创新能力数字化强优补短

维普期刊数据库博看期刊

创新实践类课程设计——以“Web创新实践”课程为例

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科教导刊 2022年第2期 118-120页

作者：郄培郭凯叶起惠王婧懿北京邮电大学国际学院北京100876

创新实践类的课程存在价值观引导不足、与其他双创环节割裂、缺乏跨专业融合协同创新等问题。基于以上分析,以"Web创新实践"课程为例探索创新实践类课程的教学设计,综合考虑课程目标、内容设计、课程考核三个方面,旨在强化学生的伦理观... 详细信息

创新实践类的课程存在价值观引导不足、与其他双创环节割裂、缺乏跨专业融合协同创新等问题。基于以上分析,以"Web创新实践"课程为例探索创新实践类课程的教学设计,综合考虑课程目标、内容设计、课程考核三个方面,旨在强化学生的伦理观念,提出以学生为中心的自主创新命题方式,跨专业融合协同培养、分类施教。实践结果表明,该课程激发了学生的创新精神,提升其创新实践能力,课程的综训成果向其他双创活动的转化率得到了显著提升。

关键词：项目驱动跨专业协同培养创新实践课程设计

维普期刊数据库博看期刊

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联合治疗Ⅲ型前列腺炎的疗效观察

中国现代医生 2009年第28期47卷 42-43页

作者：叶琪辉谢磊虞晓勇夏宏辉汤珺叶军深圳市第六人民医院(广东医学院附属南山医院)泌尿外科广东深圳518052

目的探讨Ⅲ型前列腺炎更有效的治疗方法。方法选择80例临床诊断为慢性前列腺炎/慢性盆腔疼痛综合征患者,随机分为2组:联合组为体外电场热疗联合坦索罗辛及抗生素治疗,对照组为单用药物治疗组,观察治疗前后变化并对比疗效分析。结果治疗... 详细信息

目的探讨Ⅲ型前列腺炎更有效的治疗方法。方法选择80例临床诊断为慢性前列腺炎/慢性盆腔疼痛综合征患者,随机分为2组:联合组为体外电场热疗联合坦索罗辛及抗生素治疗,对照组为单用药物治疗组,观察治疗前后变化并对比疗效分析。结果治疗后2组患者均有明显疗效,联合组总有效率92.5%(37/40),对照组总有效率82.5%(33/40),联合组与对照组比较差异有显著性意义(P<0.05)。结论体外电场热疗联合坦索罗辛及抗生素治疗疗效优于单用药物治疗组,值得临床进一步推广应用。

关键词：慢性前列腺炎联合治疗体外电场热疗

舍曲林联合盐酸坦索罗辛结合行为疗法治疗早泄

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现代中西医结合杂志 2009年第30期18卷 3661-3662页

作者：叶琪辉谢磊虞晓勇夏宏辉汤珺叶军广东医学院附属深圳南山医院广东深圳518052

目的探讨联合应用舍曲林和盐酸坦索罗辛结合行为疗法治疗早泄的临床疗效。方法选择无器质性病变的早泄患者40例,随机分成2组,对照组予单纯行为疗法,治疗组予舍曲林和盐酸坦索罗辛结合行为疗法治疗。比较2组治疗前后的平均阴道内射精潜... 详细信息

目的探讨联合应用舍曲林和盐酸坦索罗辛结合行为疗法治疗早泄的临床疗效。方法选择无器质性病变的早泄患者40例,随机分成2组,对照组予单纯行为疗法,治疗组予舍曲林和盐酸坦索罗辛结合行为疗法治疗。比较2组治疗前后的平均阴道内射精潜伏期、国际勃起功能指数(IIEF)问卷中的性交满意度评分,并评估在疗程结束时,患者及其配偶对性生活的满意程度。结果治疗组患者治疗后平均阴道内射精潜伏期以及IIEF问卷中的性交满意度评分均显著增加;治疗结束时,治疗组平均阴道内射精潜伏期(4.60±0.15)min,对照组(1.86±0.16)min;IIEF问卷中治疗组患者及配偶性交满意度评分比对照组有明显提高。2组比较均有显著性差异(P均<0.01)。结论舍曲林和盐酸坦索罗辛联合行为疗法是治疗早泄的一种有效方法。

关键词：舍曲林盐酸坦索罗辛行为疗法早泄

Adsorptive carbon-based materials for biomedical applications

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Engineered Regeneration 2022年第4期3卷 352-364页

作者： Xiaomin ye qihui Fan Luoran Shang Fangfu ye Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China Shanghai Xuhui Central Hospital Zhongshan-Xuhui Hospitaland the Shanghai Key Laboratory of Medical Epigeneticsthe International Co-laboratory of Medical Epigenetics and Metabolism(Ministry of Science and Technology)Institutes of Biomedical SciencesFudan UniversityShanghai 200032China Oujiang Laboratory(Zhejiang Lab for Regenerative Medicine Vision and Brain Health)Wenzhou InstituteUniversity of Chinese Academy of SciencesWenzhouZhejiang 325000China

Adsorption or enrichment has been an indispensable and important measure in biomedical engineering since it is promising in diagnosis and treatment of complex *** ongoing development in this arena starves for exploration of outstanding adsorptive *** an excellent candidate for adsorption or enrichment carriers,carbon-based material has demonstrated unique superiority in biomedical arena owing to its integrated ***,we review the lasted advance in adsorptive carbon-based materials for biomedical application with emphasis on carbon nanotubes(CNTs)-based,graphene-based,and biomass/polymer-based *** begin with the classification of different carbon-based materials and elaborate the respective preparation approaches that are utilized to realize optimized microstructure and physicochemical ***,we introduce the different applications of carbon-based materials in biomedical arena,including blood purification,enrichment of glycopeptide and phosphopeptide,and breath ***,we present a concise summary and give an outlook of this arena.

关键词： CNTs-base Graphene-base Biomass/polymer-based Blood purification Enrichment of glycopeptide/phosphopeptide Breath analysis