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Evaluating subconjunctival bleb function after trabeculectomy using slit-lamp optical coherence tomography and ultrasound biomicroscopy

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Chinese Medical Journal 2008年第14期121卷 1274-1279页

作者： ZHANG yi wu qiang ZHANG Min SONG Bei-wen DU Xin-hua LU Bin Department of Ophthalmology Sixth People's Hospital Shanghai 200233 China

Background The existing classifications for evaluating glaucoma filtering blebs rely mostly on external bleb characteristics and the postoperative control of intraocular pressure （IOP）. Internal bleb structures are not carefully observed. This study aimed to analyze and compare glaucoma filtering bleb morphology using slit-lamp-adapted optical coherence tomography （SL-OCT） and ultrasound biomicroscopy （UBM）, and to classify blebs according to results and intraocular pressure. Methods We followed 29 eyes of 21 male patients and 40 eyes of 32 female patients who underwent glaucoma filtering surgery in Sixth People＇s Hospital of Shanghai, between 2002 and 2006. The blebs were imaged using SL-OCT and UBM and classified according to the intrableb morphology and control of lOP after surgery. A Fisher＇s exact test was used to compare the sensitivity for predicting a functioning bleb differed significantly between SL-OCT and UBM. A Fisher＇s exact test was also used for morphological analysis of the trabeculectomy blebs based on SL-OCT. Results In the 69 eyes, there were 45 （65.2%） functioning blebs and 24 （34.8%） non-functioning blebs. We classified the blebs into four categories on the basis of SL-OCT images： diffuse, cystic, encapsulated and flat. Diffuse and cystic blebs were typically functional, whereas the other two types were always non-functional. The sensitivity of SL-OCT for predicting a functioning bleb was 92.7% （38/41 eyes） and specificity of predicting a non-functioning bleb was 83.3% （20/24 eyes）. By contrast, sensitivity of UBM was 66.7% （30/45 eyes） and specificity was 75.0% （18/24 eyes）. The sensitivity for predicting a functioning bleb differed significantly between the two techniques （P=0.003）. Conclusions SL-OCT provides high-axial-resolution images of anterior segment structures. The non-contact approach of SL-OCT enables visualization of intrableb structures at any time after surgery. SL-OCT has greater sensitivity and specificity than UBM in ev

关键词： glaucoma trabeculectomy optical coherence tomography ultrasonography

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Construction of e-learning platform

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通讯和计算机（中英文版） 2009年第12期6卷 33-37页

作者： wu yi-qiang TAN Jun-shan HE Wei WANG Chu-zheng College of Materials Science and Engineering Central South University of Forestry and Technology Changsha 410004 China College of Computer and Information Engineering Central South University of Forestry and Technology Changsha 410004 China

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Numerical Study of Flow and Heat Transfer Characteristics of Shell-and-Tube Molten Salt Electric Heater with Circularly Perforated Baffles

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Journal of Thermal Science 2025年第1期34卷 24-33页

作者： LIN Yongjie ZHANG Cancan wu Yuting ZHANG yi LU Yuanwei Key Laboratory of Heat Transfer and Energy Conversion National User-Side Energy Storage Innovation Research and Development CenterBeijing University of Technology

Numerical simulations of the flow and heat transfer characteristics of four shell-and-tube molten salt electric heaters with different perforation rates was ***-and-tube electric heaters have the same geometry and tube arrangement,and all of them use single segmental baffles,but there exist four different baffle openings（φ）,i.e.,0%,2.52%,4.06%,and 6.31%.The results indicated that the reasonable baffle opening could significantly reduce the shell-side pressure drop,effectively decreasing the shell-side flow dead zone *** can eliminate the local high-temperature phenomenon on the surface of electric heating tubes,but the heat transfer coefficient is slightly *** perforated schemes significantly reduce shell-side pressure drop compared to the baseline solution without open *** particular,the φ=6.31% scheme exhibits the optimal performance among all the schemes,with a maximum reduction of up to 50.50% in shell-side pressure drop relative to the unopened holes *** heat transfer coefficient is the highest for φ=0%,exhibiting a range of5.26% to 5.73%,5.14% to 5.99%,and 7.31% to 8.54% higher than φ=2.52%,4.06%,and 6.31%,respectively,within the calculated *** composite index h/（Δp）1/3was higher for all open-hole solutions than that for the unopened-hole *** best overall performance was for φ=6.31%,which improved the composite index by15.29% to 17.18% over the unopened-hole solution.

关键词： molten salt electric heater perforated baffles heat transfer

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尾巨桉新旧木片苯/醇抽提物的Py-GC/MS分析

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华南理工大学学报（自然科学版） 2009年第3期37卷 67-74页

作者：彭万喜武书彬吴义强陈洪华南理工大学制浆造纸工程国家重点实验室广东广州510640 中南林业科技大学材料科学与工程学院湖南长沙410004

为解决尾巨桉木材成分抽提消耗大量的制浆漂白液及助剂、加重废水对环境的污染、造成巨大的抽提物天然资源浪费等问题,采用热解-气相色谱/质谱(Py-GC/MS)研究了尾巨桉新旧木片抽提物的主要化学成分.结果表明:尾巨桉新鲜木片苯/醇抽提物... 详细信息

为解决尾巨桉木材成分抽提消耗大量的制浆漂白液及助剂、加重废水对环境的污染、造成巨大的抽提物天然资源浪费等问题,采用热解-气相色谱/质谱(Py-GC/MS)研究了尾巨桉新旧木片抽提物的主要化学成分.结果表明:尾巨桉新鲜木片苯/醇抽提物的成分为1,2,3,4,4a,9,10,10a-八氢-1,4a-二甲基-7-(1-甲乙叉)-1-菲酸甲酯(19.49%)、3,7-二羟基-9-甲氧基-1-甲基-6氢-二苯并[B,D]吡喃-6-酮(5.01%)、1,2,3,4,4a,9,10,10a-八氢-1,4a-二甲基-7-(1-甲乙叉)-1-菲酸(4.47%)、麦角甾-4,6,22-三烯-3β-醇(4.07%)、2,6-二甲氧基-苯酚(3.94%)、十六酸(2.96%)、乙酸(2.86%)、1-(3-甲氧基苯基)-乙酮(2.83%)、2-甲氧基-苯酚(2.47%)、日尔曼醇(2.00%)等145种化合物;陈旧木片苯/醇抽提物的成分为麦角甾-4,6,22-三烯-3β-醇(23.33%)、马钱子碱(9.61%)、(5β)-胆固醇-8(14)-烯-24-醇(6.86%)、油酸(6.14%)、2-甲基-苯酚(5.63%)、1-巯基-2-十七烷酮(4.06%)、2,4-二苄基-5,8-二甲氧基-6-甲基-1-萘酚(3.86%)、十六酸(3.65%)、β-谷甾醇(3.12%)、4-氯-2-氟苯胺(2.29%)、(3β,4α,5α)-4,14-二甲基-9,19-环麦角甾-24(28)-烯-3-醇(2.19%)、17-氯-7-十七烯(2.09%)等55种化合物.分析结果表明,尾巨桉新旧木片苯/醇抽提物在生物能源、生物医药、化妆品、护肤品及香料等领域有潜在的应用前景.

关键词：尾巨桉热解-气相色谱/质谱苯/醇抽提物新鲜木片陈旧木片

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界面调控对竹纤维/聚乳酸复合材料性能的影响

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功能材料 2013年第2期44卷 253-257页

作者：李新功郑霞吴义强中南林业科技大学材料科学与工程学院湖南长沙410004

分别采用碱(NaOH)处理、异氰酸酯(MDI)处理以及NaOH+MDI处理的界面调控方法对竹纤维/聚乳酸复合材料界面进行调控。结果表明,3种界面调控均改善了竹纤维/聚乳酸复合材料界面粘接性能、拉伸强度、冲击强度和防水性能;界面调控后,复合材... 详细信息

分别采用碱(NaOH)处理、异氰酸酯(MDI)处理以及NaOH+MDI处理的界面调控方法对竹纤维/聚乳酸复合材料界面进行调控。结果表明,3种界面调控均改善了竹纤维/聚乳酸复合材料界面粘接性能、拉伸强度、冲击强度和防水性能;界面调控后,复合材料的粘流活化能增加,而热流动性因竹纤维与聚乳酸交联变得困难;复合材料玻璃转化温度和结晶温度升高,熔融峰变窄;复合材料热降解温度升高,热稳定性增加。NaOH+MDI联合对竹纤维/聚乳酸复合材料界面调控效果最好,对复合材料的性能影响最显著。

关键词：竹纤维聚乳酸复合材料界面调控性能

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聚乳酸自然降解性能

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功能材料 2014年第14期45卷 14099-14102,14107页

作者：郑霞李新功吴义强中南林业科技大学长沙410004

通过注射成型工艺制备聚乳酸(PLA)标准试件,研究了聚乳酸标准试件自然降解性能。结果表明,PLA试件埋于土壤中后逐步分层缓慢降解,复合材料质量逐渐减少;PLA分子链上酯基与水反应,分子链不断断裂,结晶度减小,平均分子量降低,分子量分布变... 详细信息

通过注射成型工艺制备聚乳酸(PLA)标准试件,研究了聚乳酸标准试件自然降解性能。结果表明,PLA试件埋于土壤中后逐步分层缓慢降解,复合材料质量逐渐减少;PLA分子链上酯基与水反应,分子链不断断裂,结晶度减小,平均分子量降低,分子量分布变窄,其拉伸强度和冲击强度逐渐下降。12个月后,PLA试件质量损失率仅达到0.23%,PLA重均分子量降低了15.3%,PLA试件的冲击强度和拉伸强度分别降低了17.4%和17.2%。总体而言,PLA在土壤中的自然降解效率较低。

关键词：聚乳酸自然降解质量损失率结晶度分子量力学强度

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Identifying the dynamic behaviors in complete reconstruction of Co-based complex precatalysts during electrocatalytic oxygen evolution

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Journal of Energy Chemistry 2025年第1期100卷 226-233页

作者： Jingfang Zhang Danyang wu Linke Cai Youluan Lu Fanpeng Cheng Lijuan Shi Qun yi Yao Liu yi Huang Key Laboratory of Green Chemical Engineering Process of Ministry of Education Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education Hubei Key Laboratory of Novel Reactor and Green Chemical Technology School of Chemical Engineering & Pharmacy Wuhan Institute of Technology Key Laboratory of Pesticide & Chemical Biology of Ministry of Education Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education College of Chemistry Central China Normal University College of Materials Science and Engineering Fuzhou University

Transition metal-based nanomaterials have emerged as promising electrocatalysts for oxygen evolution reaction（OER）. Considerable research efforts have shown that self-reconstruction occurs on these nanomaterials under operating conditions of OER process. However, most of them undergo incomplete reconstruction with limited thickness of reconstruction layer, leading to low component utilization and arduous exploration of real catalytic mechanism. Herein, we identify the dynamic behaviors in complete reconstruction of Co-based complexes during OER. The hollow phytic acid（PA） cross-linked CoFe-based complex nanoboxes with porous nanowalls are designed because of their good electrolyte penetration and mass transport ability, in favor of the fast and complete reconstruction. A series of experiment characterizations demonstrate that the reconstruction process includes the fast substitution of PA by OH-to form Co（Fe）(OH)xand subsequent potential-driven oxidation to Co（Fe）OOH. The obtained CoFeOOH delivers a low overpotential of 290 mV at a current density of 10 mA cm-2and a long-term *** experiment results together with theory calculations reveal that the Fe incorporation can result in the electron rearrangement of reconstructed CoFeOOH and optimization of their electronic structure,accounting for the enhanced OER activity. The work provides new insights into complete reconstruction of metal-based complexes during OER and offers guidelines for rational design of high-performance electrocatalysts.

关键词： Oxygen evolution reaction

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甘蔗渣纤维统计强度及纤维增强可降解复合材料拉伸强度的评价

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高分子材料科学与工程 2008年第3期24卷 90-93,97页

作者：曹勇吴义强合田公一中南林业科技大学材料科学与工程学院湖南长沙410004 山口大学工学部日本山口7558611

以Weibull统计理论和最弱连接理论为基础,分析了甘蔗渣纤维的统计强度和强度分布,研究了其纤维增强可降解复合材料的拉伸强度。结果表明,甘蔗渣纤维的拉伸统计强度符合二参数的Weibull分布。扫描电镜的观察显示,甘蔗渣纤维的横断面呈现... 详细信息

以Weibull统计理论和最弱连接理论为基础,分析了甘蔗渣纤维的统计强度和强度分布,研究了其纤维增强可降解复合材料的拉伸强度。结果表明,甘蔗渣纤维的拉伸统计强度符合二参数的Weibull分布。扫描电镜的观察显示,甘蔗渣纤维的横断面呈现多孔状结构,成型后受到压缩而变得致密,增加了材料的拉伸强度。与复合材料拉伸强度常用预测模型相比,结合了纤维压缩率预测模型的预测计算值与实验值相符程度更好。

关键词：甘蔗渣纤维生物降解树脂 Weibull 统计强度拉伸强度绿色复合材料

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洋麻增强复合材料的开发和应用

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高分子材料科学与工程 2008年第7期24卷 11-15页

作者：曹勇吴义强合田公一中南林业科技大学材料科学与工程学院湖南长沙410004 山口大学工学部日本山口

洋麻以其价廉质轻、纤维拉伸强度高和产量高等特性而广泛应用于各种环保领域。文中综述了近年来洋麻增强复合材料的研究开发,介绍了洋麻秆芯和其韧皮纤维增强复合材料的制备成型方法、力学性能和应用,并展望了该类复合材料的未来发展趋势。

关键词：洋麻芯洋麻纤维复合材料综述开发应用

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Tuning the interfacial reaction environment via pH-dependent and induced ions to understand C–N bonds coupling performance in NO3- integrated CO2 reduction to carbon and nitrogen compounds over dual Cu-based N-doped carbon catalyst

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Journal of Energy Chemistry 2025年第1期100卷 273-285页

作者： Tianhang Zhou Chen Shen Zhenghao wu Xingying Lan yi Xiao College of Carbon Neutrality Future Technology State Key Laboratory of Heavy Oil Processing China University of Petroleum (Beijing) Institute of Materials Science TU Darmstadt Department of Chemistry Xi'an Jiaotong-Liverpool University Department of Mechanical and Mechatronics Engineering and Waterloo Institute of Nanotechnology University of Waterloo Waterloo

Dual atomic catalysts （DAC）,particularly copper （Cu2）-based nitrogen （N） doped graphene,show great potential to effectively convert CO2and nitrate （NO3-） into important industrial chemicals such as ethylene,glycol,acetamide,and urea through an efficient catalytical process that involves C–C and C–N ***,the origin of the coupling activity remained unclear,which substantially hinders the rational design of Cu-based catalysts for the N-integrated CO2reduction reaction （CO2RR）.To address this challenge,this work performed advanced density functional theory calculations incorporating explicit solvation based on a Cu2-based N-doped carbon (Cu2N6C10) catalyst for *** calculations are aimed to gain insight into the reaction mechanisms for the synthesis of ethylene,acetamide,and urea via coupling in the interfacial reaction *** to the sluggishness of CO2,the formation of a solvation electric layer by anions （F-,Cl-,Br-,and I-） and cations (Na+,Mg2+,K+,and Ca2+) leads to electron transfer towards the Cu *** process significantly accelerates the reduction of *** results reveal that*CO intermediates play a pivotal role in N-integrated ***,the Cu2-based N-doped carbon catalyst examined in this study has demonstrated the most potential for C–N coupling to *** findings reveal that through the process of a condensation reaction between*CO and NH2OH for urea synthesis,*NO3-is reduced to*NH3,and*CO2to*CCO at dual Cu atom *** dual-site reduction facilitates the synthesis of acetamide through a nucleophilic reaction between NH3and the ketene ***,we found that the I-and Mg2+ions,influenced by pH,were highly effective for acetamide and ammonia synthesis,except when F-and Ca2+were ***,the mechanisms of C–N bond formation were investigated via ab-initio molecular dynamics simulations,and we found that adjusting the micro-environment can change the dominant side reaction,shift

关键词： Condensation reactions

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