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Stability of the Barrett True-K formula for intraocular lens power calculation after SMILE in Chinese myopic eyes

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International Journal of Ophthalmology(English edition) 2020年第4期13卷 560-566页

作者： Wei zhu Feng-ju Zhang Yu Li Yan-Zheng Song Beijing Tongren Eye Center Beijing Tongren HospitalBeijing Ophthalmology&Visual Sciences Key LabCapital Medical UniversityBeijing 100730China The Center of Refractive Surgery Shijiazhuang Aier Eye HospitalShijiazhuang 050000Hebei ProvinceChina Aier School of Ophthalmology Central South UniversityChangsha 410000Hunan ProvinceChina

AIM: To compare the Barrett True-K formula with other formulas integrated in Lenstar 900 to predict intraocular lens(IOL) power after small-incision lenticule extraction(SMILE).METHODS: A theoretical prospective study was performed to predict the ratio of equivalent IOL power before and after SMILE using the SRK/T(Sanders, Retzlaff, Kraff/theoretical), Holladay 1, Haigis, and Barrett True-K formulas and compare the stability of their predictions. The study included 54 eyes(54 cases) with a manifest refraction spherical equivalent(MRSE) of-4.99±1.45 D. They were divided into two groups: 27 eyes with axial length of 24-26 mm in Group A, and 27 eyes with axial length >26 mm in Group B. All subjects enrolled in this study were examined with the Lenstar 900 before and 6 mo after SMILE including measurements of axial length, corneal curvature, and anterior chamber depth(ACD). RESULTS: The prediction of equivalent IOL power of the two groups was more stable for the Barrett True-K formula, especially in long axial length eyes(Group B). The respective percentages for the SRK/T, Holladay 1, Haigis, and Barrett True-K formulas were 7.4%, 7.4%, 85.19%, and 88.89% for a margin of error within 0.5 D;25.92%, 51.84%, 100%, and 100% for a margin of error within 1.0 D in Group A;33.33%, 40.74%, 44.44%, and 81.48% for a margin of error within 0.5 D;and 44.44%, 59.26%, 66.66%, and 92.59% for a margin of error within 1.0 D in Group B. The respective percentages for Barrett True-K formulas were 100% for a margin of error within 2.0 D in Group ***: Theoretically, the Barrett True-K formula provides more stable predictions than other formulas for cataract eyes after SMILE.

关键词： intraocular lens IOL power calculation formula SMILE equivalent IOL power Lenstar 900

A Facile Way to Large-scale Production of Few-layered Graphene via Planetary Ball Mill

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Chinese Journal of Polymer Science 2016年第10期34卷 1270-1280页

作者： sha deng xiao-dong qi yan-ling zhu hong-ju zhou feng chen 傅强 College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 China

Abstract In the field of polymer/graphene nanocomposites, massive production and commercial availability of graphene are essential. Exfoliation of graphite to obtain graphene is one of the most promising ways to large-scale production at extremely low cost. In this work we illustrate a facile strategy for mass production of few-layered （≤ 10） graphene （FLG） via the newly explored ball milling. The achieved FLG concentration was determined by UV/Vis spectroscopy. The formation of FLG was proved by measuring the flake thickness by atomic force microscopy （AFM）. Further Raman spectral studies indicated that the crystal structure of exfoliated flakes was preserved satisfactorily during this shear-force dominating process. To increase the maximum concentration obtainable, it＇s critical to make a good parameter assessment. N-methylpyrrolidone （NMP） was used as a dispersing medium and the effect of milling parameters was systematically and quantitatively investigated, thus providing a criterion to optimize the milling process. We established the optimal values for solvent volume and initial weight of graphite. As for milling time, the production of FLG was enhanced with continuous milling according to the power law, but not linearly with increasing milling time. Moreover, the possible mechanism involved in milling process was also explored. Our work provides a simple method for graphite exfoliation and has great potential for improving thermal and electrical conductivity of polymer composites in the fields of engineering.

关键词： Polymer/graphene nanocomposites Ball milling Mass production Milling parameters.

厌氧氨氧化工艺在主流污水处理中的应用及其调控研究进展

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水处理技术 2024年第1期50卷 20-25页

作者：王宝玉朱武卫付文震鹿琳睿鞠恺万琼陕西省建筑科学研究院有限公司陕西西安710082 水发(北京)建设有限公司山东济南250014 西安科技大学建筑与土木工程学院陕西西安710054

厌氧氨氧化工艺(Anammox)具有低能耗、低产泥量、高脱氮性能等特点,在处理垃圾渗滤液、污泥消化液等领域的应用与研究得到了广泛重视。尽管如此,受制于氨氮浓度低、有机物与水量波动大、低温等问题,影响了其在城市污水主流工艺的应用。... 详细信息

厌氧氨氧化工艺(Anammox)具有低能耗、低产泥量、高脱氮性能等特点,在处理垃圾渗滤液、污泥消化液等领域的应用与研究得到了广泛重视。尽管如此,受制于氨氮浓度低、有机物与水量波动大、低温等问题,影响了其在城市污水主流工艺的应用。本文在介绍厌氧氨氧化工艺的基础上,总结了以厌氧氨氧化为基础的组合工艺处理城市污水案例,分析了当前厌氧氨氧化工艺应用于城市污水处理的限制性因素以及新型调控手段与策略。进一步展望了厌氧氨氧化应用于城市污水主流工艺的发展方向,以期为厌氧氨氧化应用到主流污水提供理思路。

关键词：厌氧氨氧化短程硝化短程反硝化主流工艺调控策略

Synthesis of Mg_2B_2O_5 whiskers via coprecipitation and sintering process

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International Journal of Minerals,Metallurgy and Materials 2012年第10期19卷 969-972页

作者： Dong-hai zhu Xue-ying Nai Cheng-cai zhu Feng-qin Guo Shao-ju Bian Wu Li Qinghai Institute of Salt Lakes Chinese Academy of Sciences Xining 810008 China Graduate University of Chinese Academy of Sciences Beijing 100049 China Department o f Basin Education Qinghai University Xining 810016 China

Mg2B2O5 whiskers with high aspect ratio were synthesized by coprecipitation and sintering process using MgCl2-6H2O, H3BO3, and NaOH as raw materials and KCl as a flux. Their formation process was investigated by thermogravimetry and differential scanning calo- rimetry （TG-DSC）, X-ray diffraction （XRD）, and scanning electron microcopy （SEM）. It is found that the products synthesized at 832℃ are monoclinic Mg2B205 whiskers with a diameter of 200-400 nm and a length of 50-80 μm. Transmission electron microscopy （TEM） and selected area electron diffraction （SAED） analyses show that the whiskers obtained at 832℃ are single crystalline and grow along with the [010] direction. The growth mechanism of Mg2B2O5 whiskers was also presented.

关键词： magnesium borate coprecipitation sintering crystal whiskers crystal growth microstructure

支气管肺发育不良小鼠肺组织FOXP3^(+)调节性T细胞(Treg)数量减少且向RORγt^(+)FOXP3^(+)Treg转换

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细胞与分子免疫学杂志 2024年第1期40卷 7-12页

作者：何朗粤卢红艳朱莹江健锋鞠慧敏乔瑜魏善杰江苏大学附属医院儿科江苏镇江212000

目的探讨调节性T淋巴细胞(Treg)表型转换在支气管肺发育不良(BPD)小鼠肺组织中的作用。方法 C57BL/6新生小鼠随机分成空气组及高氧组,每组10只,高氧组建立新生小鼠高氧暴露的BPD动物模型。在小鼠生后7 d和14 d,每组各处死5只小鼠,取出... 详细信息

目的探讨调节性T淋巴细胞(Treg)表型转换在支气管肺发育不良(BPD)小鼠肺组织中的作用。方法 C57BL/6新生小鼠随机分成空气组及高氧组,每组10只,高氧组建立新生小鼠高氧暴露的BPD动物模型。在小鼠生后7 d和14 d,每组各处死5只小鼠,取出新鲜肺组织。HE染色观察肺组织病理变化,Western blot法检测肺表面活性蛋白C(SP-C)表达水平;流式细胞术检测肺组织中叉头盒P3(FOXP3)^(+)Treg及维甲酸相关孤核受体γt(RORγt)^(+)FOXP3^(+)Treg占CD4^(+)淋巴细胞百分比,ELISA检测肺组织中白细胞介素17A(IL-17A)、 IL-6的含量。采用Spearman相关分析法分析FOXP3^(+)Treg与SP-C相对表达量的相关性以及RORγt^(+)FOXP3^(+)Treg与IL-17A、 IL-6含量的相关性。结果与同时间点空气组相比,高氧组肺泡结构简单化,放射状肺泡计数与SP-C相对表达水平均明显下降,高氧组FOXP3^(+)Treg占比减少,RORγt^(+)FOXP3^(+)Treg占比增多,肺组织IL-17A、 IL-6含量明显升高。FOXP3^(+)Treg与SP-C相对表达水平呈正相关,RORγt^(+)FOXP3^(+)Treg与IL-17A、 IL-6含量呈正相关。结论 BPD小鼠肺组织FOXP3^(+)Treg数量减少并向RORγt^(+)FOXP3^(+)Treg转换,可能参与高氧所致肺损伤。

关键词：支气管肺发育不良调节性T细胞(Treg) 叉头盒P3(FOXP3) 维甲酸相关孤核受体(RORγt)

Finkler超声评分联合HE4在老年卵巢恶性肿瘤诊断及化疗疗效评估中的价值

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实用妇科内分泌电子杂志 2024年第5期11卷 92-94页

作者：李寅红仇菊朱晓琴秦智娟如皋市人民医院妇产科江苏如皋226500

目的探讨Finkler超声评分联合人附睾蛋白4(HE4)在老年卵巢恶性肿瘤诊断及化疗疗效评估中的价值。方法选取本院60例老年卵巢肿块患者作为研究对象,对其进行Finkler超声评分、HE4检测,以病理诊断结果为金标准,比较两种方法的诊断效能。并... 详细信息

目的探讨Finkler超声评分联合人附睾蛋白4(HE4)在老年卵巢恶性肿瘤诊断及化疗疗效评估中的价值。方法选取本院60例老年卵巢肿块患者作为研究对象,对其进行Finkler超声评分、HE4检测,以病理诊断结果为金标准,比较两种方法的诊断效能。并根据首次化疗结果,将卵巢恶性肿瘤患者分为无反应组和化疗反应组,比较两组的Finkler超声评分、HE4浓度。结果以病理检查结果为金标准,最终确诊48例恶性肿瘤、12例良性肿瘤;Finkler超声评分、HE4检测和联合检测诊断卵巢恶性肿瘤的AUC值分别为0.82、0.87、0.90,联合检测的敏感度、特异度高达91.67%和83.33%;化疗后,有反应组的Finkler超声评分和HE4浓度均显著低于无反应组(P<0.05)。结论Finkler超声评分联合HE,在老年卵巢恶性肿瘤诊断和化疗疗效评估中显示出较高价值,这种综合评估方法能够更准确地判断肿瘤性质和治疗反应,为老年卵巢恶性肿瘤的个体化治疗提供重要信息。

关键词： Finkler超声评分人附睾蛋白4 卵巢恶性肿瘤化疗疗效诊断

原料乳冷藏过程中差异表达蛋白的表征与比较分析

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食品科学 2024年第5期45卷 225-232页

作者：庄姣剧柠朱晓雪李亚凤丁雨红高岩陈彦辉齐瑾杨秉坤宁夏大学食品科学与工程学院宁夏银川750021

采用数据独立采集蛋白质组学技术分析4℃冷藏6 d的原料乳差异蛋白质组成及其生物学功能。冷藏过程中,共鉴定到902种蛋白质。其中,冷藏前期(d 0 vs d 3)和冷藏后期(d 3 vs d 6)分别筛选出70种和71种差异表达蛋白。生物信息学分析发现冷... 详细信息

采用数据独立采集蛋白质组学技术分析4℃冷藏6 d的原料乳差异蛋白质组成及其生物学功能。冷藏过程中,共鉴定到902种蛋白质。其中,冷藏前期(d 0 vs d 3)和冷藏后期(d 3 vs d 6)分别筛选出70种和71种差异表达蛋白。生物信息学分析发现冷藏前期差异蛋白具有对神经生长因子的刺激反应和细胞组织的调控等功能,主要参与了细胞的生物学过程;冷藏后期差异蛋白具有碳水化合物代谢过程和RNA代谢过程的调节等功能,主要参与了糖代谢途径。蛋白-蛋白互作网络分析表明,细胞分裂控制蛋白42同源物(CDC42)是两个冷藏阶段共有的关键节点蛋白,该蛋白与细胞的吞噬作用密切相关。上述结果揭示了冷藏过程中的蛋白质组成差异和功能的多样性,为原料乳的冷藏提供了理论依据,对原料乳的质量控制具有重要意义。

关键词：原料乳冷藏蛋白组学差异表达蛋白生物信息学

Identification of Plant-Pathogenic Fungi Using Fourier Transform Infrared Spectroscopy Combined with Chemometric Analyses

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光谱学与光谱分析 2016年第11期36卷 3764-3771页

作者： CHAI A-li WANG Yi-kai zhu Fa-di SHI Yan-xia XIE Xue-wen LI Bao-ju Institute of Vegetables and Flowers Chinese Academy of Agricultural Sciences Beijing 100081 China Beijing Entry-Exit Inspection and Quarantine Bureau Beijing 100026 China

Identification of plant-pathogenic fungi is time-consuming due to cultivation and microscopic examination and can be influenced by the interpretation of the micro-morphological characters *** present investigation aimed to create a simple but sophisticated method for the identification of plant-pathogenic fungi by Fourier transform infrared(FTIR)*** this study,FTIR-attenuated total reflectance(ATR)spectroscopy was used in combination with chemometric analysis for identification of important pathogenic fungi of horticultural *** of mycelia and spores from 27fungal strains belonging to nine different families were collected from liquid PD or solid PDA media cultures and subjected to FTIR-ATR spectroscopy *** FTIR-ATR spectra ranging from 4 000to 400cm-1 were *** classify the FTIRATR spectra,cluster analysis was compared with canonical vitiate analysis(CVA)in the spectral regions of3 050~2 800and 1 800~*** showed that the identification accuracies achieved 97.53%and99.18%for the cluster analysis and CVA analysis,respectively,demonstrating the high potential of this technique for fungal strain identification.

关键词： Fourier transform infrared spectroscopy(FTIR) Plant-pathogenic fungi Identification Cluster analysis Canonical vitiate analysis

A pilot-scale jet bubbling reactor for wet flue gas desulfurization with pyrolusite

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Journal of Environmental Sciences 2005年第5期17卷 827-831页

作者： SU Shi-jun zhu Xiao-fan LIU Yong-jun JIANG Wen-ju JIN Yan National Engineering Research Center for Flue Gas Desulfurization Department of Environmental Science and Engineering Sichuan University Chengdu 610065 China

MnO2 in pyrolusite can react with SO2 in flue gas and obtain by-product MnSO4· H2O. A pilot scale jet bubbling reactor was applied in this work. Different factors affecting both SO2 absorption efficiency and Mn2^＋ extraction rate have been investigated, these factors include temperature of inlet gas flue, ration of liquid/solid mass flow rate（ L/S）, pyrolusite grade, and SO2 concentration in the inlet flue gas. In the meantime, the procedure of purification of absorption liquid was also discussed. Experiment results indicated that the increase of temperature from 30 to 70 K caused the increase of SO2 absorption efficiency from 81.4% to 91.2%. And when SO2 concentration in the inlet flue gas increased from 500 to 3000 ppm, SO2 absorption efficiency and Mn2^＋ extraction rate decreased from 98.1% to 82.2% and from 82.8% to 61.7%, respectively. The content of MnO2 in pyrolusite had a neglectable effect on SO2, absorption efficiency. Low L/S was good for both removal of SO2 and Mn2^＋ extraction. The absorption liquid was filtrated and purified to remove Si, Mg, Ca, Fe, Al and heavy metals, last product MnSO4· H2O was obtained which quality could reach China GB1622-86, the industry grade standards.

关键词： wet FGD jet bubbling reactor SO2 pyrolusite manganese sulfate