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蜜柚发酵酒与蒸馏酒香气成分的GC-MS分析

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中国酿造 2020年第11期39卷 173-178页

作者：江飞凤龙运忠谭晓辉胡鹏刚赵玲燕娄兴维潘雪梅贵州大学贵州省发酵工程与生物制药重点实验室贵州贵阳550025 贵州大学酿酒与食品工程学院贵州贵阳550025 荔波昌辉食业有限公司贵州荔波558400

采用顶空固相微萃取(HS-SPME)和气相色谱-质谱联用(GC-MS)技术研究蜜柚发酵酒与蜜柚蒸馏酒中的香气成分。结果表明,蜜柚发酵酒和蜜柚蒸馏酒中共检测出33种香气成分,其中醇类、酯类和酸类是蜜柚发酵酒中主要的香气成分,含量分别为343.33 ... 详细信息

采用顶空固相微萃取(HS-SPME)和气相色谱-质谱联用(GC-MS)技术研究蜜柚发酵酒与蜜柚蒸馏酒中的香气成分。结果表明,蜜柚发酵酒和蜜柚蒸馏酒中共检测出33种香气成分,其中醇类、酯类和酸类是蜜柚发酵酒中主要的香气成分,含量分别为343.33 mg/L、380.99 mg/L、455.79 mg/L,分别占蜜柚发酵酒总香气成分含量的28.19%、31.28%和37.42%。醇类和酯类也是蜜柚蒸馏酒中主要的香气成分,含量为537.62 mg/L和199.28 mg/L,占蜜柚蒸馏酒总香气成分含量的70.11%和25.98%。并应用香气活性值(OVA)判断它们对蜜柚酒体香气的贡献程度,OAV显示,蜜柚发酵酒中OVA>1的有9种,其中贡献较高的为乙酸(OAV=1519.3)、棕榈酸乙酯(OAV=138);蜜柚蒸馏酒OVA>1的有10种,贡献较高的为糠醛(OAV=220.1)和乙酸异戊酯(OAV=100.1)。

关键词：蜜柚发酵酒蜜柚蒸馏酒顶空固相微萃取-气相色谱-质谱联用法香气活性值

中西医药物联合激光光凝治疗糖尿病性视网膜病变的效果

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中国医药导报 2015年第15期12卷 140-142,F0004页

作者：潘雪梅刘正峰毕宏生王兴荣徐超立山东中医药大学附属眼科医院山东济南250002 山东中医药大学眼科教研室山东济南250355

目的：回顾性分析中西药物联合激光光凝治疗糖尿病性视网膜病变的临床效果。方法收集山东中医药大学附属眼科医院2013年1月~2014年1月收治的糖尿病性视网膜病变患者107例，其中男52例，女55例，共168眼，应用中西医药物联合激光光凝治... 详细信息

目的：回顾性分析中西药物联合激光光凝治疗糖尿病性视网膜病变的临床效果。方法收集山东中医药大学附属眼科医院2013年1月~2014年1月收治的糖尿病性视网膜病变患者107例，其中男52例，女55例，共168眼，应用中西医药物联合激光光凝治疗后，并对患者出院时疗效进行分析。结果半年复诊时，在168眼中，视力提高两行及以上的有51只眼，提高1行或无提高的有100只眼，视力下降的有17只眼，总有效率为89.88%。结论中西医药物联合激光光凝治疗糖尿病性视网膜病变是有效的。

关键词：中西医药物激光光凝糖尿病性视网膜病变效果

Catalytic hydrogenation performance of ZIF-8 carbide for electrochemical reduction of carbon dioxide

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Chinese Journal of Chemical Engineering 2021年第11期34卷 144-153页

作者： Shuai Fan Huiyuan Cheng Manman Feng xuemei Wu Zihao Fan Dongwei pan Gaohong He State Key Laboratory of Fine Chemicals Research and Development Center of Membrane Science and TechnologySchool of Chemical EngineeringDalian University of TechnologyDalian 116024China

The conversion of CO_(2) electrocatalytic hydrogenation into energy-rich fuel is considered to be the most effective way to carbon ***-doping carbonized ZIF-8 is proposed as carrier of the earth-rich Sn catalyst to overcome the limit of electron transfer and CO_(2) adsorption capacity of *** porous structure of Sn doped carbonized ZIF-8 is controlled by hydrothermal and carbonization conditions,which induces much higher specific surface area than that of the commercial Sn nanoparticle(1003.174 vs.7.410 m^(2)·g^(-1)).The shift of nitrogen peaks in X-ray Photoelectron Spectroscopy spectra indicates interaction between ZIF-8 and Sn,which induces the shift of electron cloud from Sn to the chemical nitrogen to enhance conductivity and regulate electron transfer from catalyst to CO_(2).Lower mass transfer resistance and Warburg resistance are investigated through EIS,which significantly improves the catalytic activity for CO_(2) reduction reaction(CO_(2)RR).Onset potential of the reaction is reduced from-0.74 V to less than-0.54 V *** total Faraday efficiency of HCOOH and CO reaches 68.9%at-1.14 V ***,which is much higher than that of the commercial Sn(45.0%)and some other Sn-based catalyst reported in the literature.

关键词： Carbon dioxide Electrochemistry Selective catalytic reduction Electrochemical hydrogen pump Nitrogen-doping carbonized ZIF-8

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复合澄清剂处理柚子发酵酒的澄清效果研究

中国酿造 2020年第3期39卷 115-119页

作者：赵玲燕谭晓辉龙运忠胡鹏刚娄兴维江飞凤潘雪梅贵州大学贵州省发酵工程与生物制药重点实验室贵州贵阳550025 贵州大学酿酒与食品工程学院贵州贵阳550025 荔波昌辉食业有限公司贵州荔波558400

针对柚子果酒难以澄清的情况,采用硅藻土、壳聚糖、木瓜蛋白酶、明胶、交联聚乙烯吡咯烷酮(PVPP)、皂土6种澄清剂进行单因素试验,考察其对柚子果酒的澄清效果。以透光率和感官品评为评价指标,选取澄清效果较好的澄清剂进行复合,并优化... 详细信息

针对柚子果酒难以澄清的情况,采用硅藻土、壳聚糖、木瓜蛋白酶、明胶、交联聚乙烯吡咯烷酮(PVPP)、皂土6种澄清剂进行单因素试验,考察其对柚子果酒的澄清效果。以透光率和感官品评为评价指标,选取澄清效果较好的澄清剂进行复合,并优化澄清工艺。单因素试验结果表明,皂土和壳聚糖为最佳澄清剂,正交试验结果表明,柚子果酒的最佳澄清工艺为:皂土-壳聚糖澄清剂质量比为0.75∶1.00、处理温度35℃、处理时间11 h。在此优化条件下,柚子果酒透光率达91.7%,比原果酒的透光率提高了35.5%。

关键词：柚子果酒复合澄清剂澄清效果澄清工艺

BmCyclin B and BmCyclin B3 are required for cell cycle progression in the silkworm, Bombyx mori

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Science China(Life Sciences) 2013年第4期56卷 360-365页

作者： pan MinHui HONG KaiLi CHEN XiangYun pan Chun CHEN xuemei KUANG XiuXiu LU Cheng State Key Laboratory of Silkworm Genome Biology Southwest University

Cyclin B is an important regulator of the cell cycle G2 to M phase transition. The silkworm genomic database shows that there are two Cyclin B genes in the silkworm (Bombyx mori), BmCyclin B and BmCyclin B3. Using silkworm EST data, the cyclin B3 (EU074796) gene was cloned. Its complete cDNA was 1665 bp with an ORF of 1536 bp derived from seven exons and six introns. The BmCyclin B3 gene encodes 511 amino acids, and the predicted molecular weight is 57.8 kD with an isoelectric point of 9.18. The protein contains one protein damage box and two cyclin boxes. RNA interference-mediated reduction of BmCyclin B and BmCyclin B3 expression induced cell cycle arrest in G2 or M phase in BmN-SWU1 cells, thus inhibiting cell proliferation. These results suggest that BmCyclin B and BmCyclin B3 are necessary for completing the cell cycle in silkworm cells.

关键词： Bombyx mori cell cycle BmCyclin B BmCyclin B3 cell proliferation

A DESCRIPTION METHOD FOR ARBITRARILY SHAPED AND SIZED GRANULES IN 2D IMAGE

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Journal of Electronics(China) 2009年第3期26卷 423-427页

作者： Chen Ken Zhao pan Zhao xuemei College of Information Science and Engineering Ningbo University Ningbo 315211 China

An alternative method is proposed in this letter for describing the arbitrary shape and size for granules in 2D *** image binarization, the edge points on contour are detected, by which the centroid of the shape in question is sought using the moment *** Principal Component Analysis(PCA), the major and minor diameters are *** on the signature curve-fitting, the first-order derivative is taken so as to seek all the characteristic *** connecting the vertices found, the simplified polygon is formed and utilized for shape and size descriptive *** developed algorithm is run on two given real particle images, and the execution results indicate that the computed parameters can technically well describe the shape and size for the original particles, being able to provide a ready-to-use database for machine vision system to perform related data processing tasks.

关键词： Particle shape and size Granule image Shape descriptor Principal Component Analysis(PCA) Machine vision

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产后缺乳的病因研究

中国中医药现代远程教育 2020年第19期18卷 58-60页

作者：张璐杭林涛刘春燕吕雪英杨丹潘雪梅昆明市官渡区金马街道社区卫生服务中心中医科云南昆明650000

本研究为了探索产后缺乳的病因特点,通过对昆明市官渡区金马街道社区卫生服务中心2018年3月—2019年6月就诊的300例哺乳期产妇的问卷调查,采用х2检验、二元logistic回归分析等方法,得出情志不遂、营养状况不合理、作息不规律、恶露持... 详细信息

本研究为了探索产后缺乳的病因特点,通过对昆明市官渡区金马街道社区卫生服务中心2018年3月—2019年6月就诊的300例哺乳期产妇的问卷调查,采用х2检验、二元logistic回归分析等方法,得出情志不遂、营养状况不合理、作息不规律、恶露持续时间超过10 d、家族史5项指标为缺乳发病的危险因素。

关键词：缺乳病因产后病乳汁

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品管圈对消化内科护士手卫生执行情况的影响

国际护理学杂志 2018年第9期37卷 1254-1257页

作者：潘雪梅周林丽张丽君黎婉斌陈华丽中山大学附属第三医院消化内科广州510630 中山大学附属第三医院感染管理科广州510630

目的探讨品管圈（QCC）对提高消化内科护士手卫生执行情况的应用效果。方法成立QCC小组，确立活动主题为“提高消化内科护士手卫生执行率”，对消化内科病房护士手卫生执行现况进行调查，以手卫生指征时未执行为不良状况，分析导致手卫... 详细信息

目的探讨品管圈（QCC）对提高消化内科护士手卫生执行情况的应用效果。方法成立QCC小组，确立活动主题为“提高消化内科护士手卫生执行率”，对消化内科病房护士手卫生执行现况进行调查，以手卫生指征时未执行为不良状况，分析导致手卫生执行存在的问题，确立手卫生知识和意识薄弱、手卫生时机识记不牢、缺乏监督考核和缺乏奖惩制度为主要原因，拟定相应对策并予以实施，活动结束时再次进行查检，评价活动效果。结果QCC活动使消化内科护士手卫生执行率从49．17％提高到了80．83％，差异有统计学意义（P〈0.01）。活动后，接触患者前、接触患者后、接触患者周围环境后手卫生时刻的执行率较活动前明显升高。结论应用QCC的管理方法可有效提高消化内科护士手卫生执行率。

关键词：品管圈消化内科护士手卫生执行率

Impacts of algal blooms removal by chitosan-modified soils on zooplankton community in Taihu Lake,China

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Journal of Environmental Sciences 2010年第10期22卷 1500-1507页

作者： Jiajia Ni Yuhe Yu Weisong Feng Qingyun Yan Gang pan Bo Yang Xiang Zhang xuemei Li Key Laboratory of Biodiversity and Conservation of Aquatic Organisms Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 China. Graduate School of the Chinese Academy of Sciences Beijing 100039 China State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-environmental Sciences Chinese Academy of Sciences Beijing 100085 China

It is important to assess the effect on zooplankton when perform the environmental protection or restoration technology, especially removing algal blooms, because algae were the major primary producer in algal lakes. The influence on zooplankton community after half a year of algal blooms removed by chitosan-modified soils in Taihu Lake was assessed and the rationality of carrying out the process semiannually was evaluated in the present study. Morphological composition and genetic diversity of zooplankton community were investigated by microscope checkup and polymerase chain reaction-denatured gradient gel electrophoresis （PCR-DGGE）. A total of 44 zooplankton taxa （23 protozoa, 17 rotifers, 3 copepoda and 1 cladocera） were detected by microscope checkup, and a total of 91 bands （28 bands amplified by primers F1427-GC and R1616, 63 bands amplified by primers Fung-GC and NS1） were detected by PCR-DGGE. The results of cluster analysis or detrended correspondence analysis indicated that there was no considerable difference in morphological composition of zooplankton and DGGE profiles between experimental and control sites, and DGGE profiles could represent the biologic diversity. The study showed that zooplankton community could recover original condition after half year of algal blooms removed by chitosan-modified soils and it was acceptable to apply this process semiannually. In addition, the results revealed that PCR-DCJGE could be applied to investigate the impacts of the environmental protection or restoration engineering on zooplankton community diversity.

关键词： algal blooms Microcystis aeruginosa zooplankton community chitosan-modified soils Taihu Lake