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AKD蜡和AKD乳液技术发展与研究

中华纸业 2008年第1期29卷 68-71页

作者：张新东李军盛华宏苏州天马医药集团有限公司江苏苏州215101

AKD蜡的无溶剂法生产,没有甲苯有机溶剂的污染,适合于食品包装纸等的应用。连续化生产AKD蜡,自动化程度和生产效率得到提高。液体AKD蜡可以解决纸张打滑的问题。熟化效率提高的AKD乳液可用于机内涂布的轻涂纸。抗干扰的AKD乳液用于箱纸... 详细信息

AKD蜡的无溶剂法生产,没有甲苯有机溶剂的污染,适合于食品包装纸等的应用。连续化生产AKD蜡,自动化程度和生产效率得到提高。液体AKD蜡可以解决纸张打滑的问题。熟化效率提高的AKD乳液可用于机内涂布的轻涂纸。抗干扰的AKD乳液用于箱纸板等。表面施胶的AKD乳液稳定性好。

关键词： AKD蜡无溶剂法连续化生产液体蜡高熟化性抗干扰型表面施胶剂

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基于概念联想网络的网页预取模型

上海交通大学学报 2004年第5期38卷 779-782页

作者：孙强李建华李生红许欢庆上海交通大学电子工程系上海200030

提出一种基于概念联想网络的网页预取模型,挖掘用户访问模式中蕴含的概念间联想模式,结合在线学习和离线挖掘两种方式,建立面向用户的概念联想网络,并基于概念联想网络实现网页预取评价.模型对网页进行概念层次的分析,提高了预取的准确... 详细信息

提出一种基于概念联想网络的网页预取模型,挖掘用户访问模式中蕴含的概念间联想模式,结合在线学习和离线挖掘两种方式,建立面向用户的概念联想网络,并基于概念联想网络实现网页预取评价.模型对网页进行概念层次的分析,提高了预取的准确性,实现了基于语义的客户端网页预取.

关键词：网页预取概念联想概念联想网络

Small extracellular vesicles derived from human induced pluripotent stem cell-differentiated neural progenitor cells mitigate retinal ganglion cell degeneration in a mouse model of optic nerve injury

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Neural Regeneration Research 2025年第2期20卷 587-597页

作者： Tong Li Hui-Min Xing Hai-Dong Qian Qiao Gao sheng-Lan Xu hua Ma Zai-Long Chi State Key Laboratory of Ophthalmology Optometry and Visual ScienceEye HospitalWenzhou Medical UniversityWenzhouZhejiang ProvinceChina National Clinical Research Center for Ocular Diseases Eye HospitalWenzhou Medical UniversityWenzhouZhejiang ProvinceChina

Several studies have found that transplantation of neural progenitor cells(NPCs)promotes the survival of injured ***,a poor integration rate and high risk of tumorigenicity after cell transplantation limits their clinical *** extracellular vesicles(sEVs)contain bioactive molecules for neuronal protection and *** studies have shown that stem/progenitor cell-derived sEVs can promote neuronal survival and recovery of neurological function in neurodegenerative eye diseases and other eye *** this study,we intravitreally transplanted sEVs derived from human induced pluripotent stem cells(hiPSCs)and hiPSCs-differentiated NPCs(hiPSC-NPC)in a mouse model of optic nerve *** results show that these intravitreally injected sEVs were ingested by retinal cells,especially those localized in the ganglion cell *** with hiPSC-NPC-derived sEVs mitigated optic nerve crush-induced retinal ganglion cell degeneration,and regulated the retinal microenvironment by inhibiting excessive activation of *** analysis further revealed that hiPSC-NPC derived sEVs transported neuroprotective and anti-inflammatory miRNA cargos to target cells,which had protective effects on RGCs after optic nerve *** findings suggest that sEVs derived from hiPSC-NPC are a promising cell-free therapeutic strategy for optic neuropathy.

关键词： exosome miRNA neural progenitor cell neurodegeneration neuroinflammation neuroprotection optic nerve crush optic neuropathy retinal ganglion cell small extracellular vesicles

Proteomic analysis reveal toxin biosynthesis related proteins in toxin-producing Alexandrium tamarense

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Proteomic analysis reveal toxin biosynthesis related protein...

中国藻类学会第八次会员大会暨第十六次学术讨论会

作者： Yue Gao,Lin Lin,hua-sheng hong,Da-Zhi Wang~* State Key Laboratory of Marine Environmental Science/Environmental Science Research Center,Xiamen University,182 Daxue Road,361005,Xiamen,China

＜正＞This research optimized the synchronization method of Alexandrium tamarense, defined the cell cycle phases with flow cytometry and detected toxin content and composition variation during the whole cell ***,compared the protein expressions from *** at different toxin biosynthesis phases（T24,T26,T34） used 2-DE.A total of 120 differentially expressed protein spots（＞2 fold） were found and identified using MALDI-TOF/TOF,nine of which showed a roughly 3 fold in toxin decreased *** as S adenosylhomocysteine hydrolase,alcohol dehydrogenase, sulfotransferase,and arginine deiminas might be involved in toxin biosynthesis and could be used as potential biomarkers in PSP producing ***,the toxin biosynthesis pathways in *** were *** results are a first step in the dissection of the behavior of the dinoflagellate *** proteome during cell cycle and may provide new insights into the relationship between dinoflagellate blooms and toxin biosynthesis within the cell cycle.

关键词： A.tamarense CI01 Cell cycle Toxin Biosynthesis Proteome

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饱和—非饱和岩土非稳定渗流有限元分析研究

水动力学研究与进展（A辑） 2002年第2期17卷 253-259页

作者：彭华陈胜宏武汉大学土木与建筑工程学院湖北武汉430072 武汉大学水电学院湖北武汉430072

本文对饱和—非饱和渗流有限元分析方法加以改进 ,提出了修正容水度和加速迭代收敛技术的新方法 ,消除了饱和—非饱和渗流计算中存在的数值弥散现象 ,提高了收敛速度。

关键词：非饱和渗流容水度加速收敛有限元分析

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用于中文色情文本过滤的近邻法构造算法

上海交通大学学报 2004年第Z1期38卷 76-79页

作者：苏贵洋李建华马颖华李生红上海交通大学信息安全学院上海200030

从不良信息中最为普及的中文色情文本过滤入手,用近邻法(KNN)算法构造对比了4种特征项选择的方法在中文色情文本中的应用,它们分别是字、词、标点符号和词性等特征.试验表明,中文色情文本不同特征项的选择对中文色情文本的分类效果起到... 详细信息

从不良信息中最为普及的中文色情文本过滤入手,用近邻法(KNN)算法构造对比了4种特征项选择的方法在中文色情文本中的应用,它们分别是字、词、标点符号和词性等特征.试验表明,中文色情文本不同特征项的选择对中文色情文本的分类效果起到了重要的作用.实验同时表明,所设计的过滤器在保证速度的前提下,很好地完成了基于内容的高精度过滤.

关键词：文本过滤信息过滤文本表示向量空间模型特征选择

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无溶剂法AKD蜡和新型AKD乳液的研发

造纸化学品 2007年第6期19卷 27-31页

作者：张新东盛华宏徐敏苏州天马医药集团有限公司江苏苏州215101

介绍了无溶剂法烷基烯酮二聚体(AKD)蜡和新型AKD乳液的特性和应用范围:无溶剂法AKD蜡没有甲苯有机溶剂的污染,适用于食品包装纸的生产;连续化生产AKD蜡提高了自动化程度和生产效率;液体AKD蜡可以解决纸张打滑的问题;快速熟化的AKD乳液... 详细信息

介绍了无溶剂法烷基烯酮二聚体(AKD)蜡和新型AKD乳液的特性和应用范围:无溶剂法AKD蜡没有甲苯有机溶剂的污染,适用于食品包装纸的生产;连续化生产AKD蜡提高了自动化程度和生产效率;液体AKD蜡可以解决纸张打滑的问题;快速熟化的AKD乳液可用于机内涂布轻涂纸;具有抗干扰性能的AKD乳液适用于箱板纸生产;而表面施胶型AKD则具有乳液稳定性好的特点。

关键词：烷基烯酮二聚体蜡无溶剂法烷基烯酮二聚体乳液

Modified fluorogenic model substrate (FMS) technique to measure extraceilular enzyme activities of mangrove swamp surface sediments

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Modified fluorogenic model substrate (FMS) technique to meas...

Semivolatile organic compounds, organochlorine pesticides and heavy metals in sediments and risk assessment in huaihe River of China

第十次全国环境微生物学术研讨会

作者： Hui-Jie Liu Yun Tian Tian-Ling Zheng Chong-Ling Yan hua-sheng hong School of Life Sciences,MOE of Key Laboratory for Cell Biology and Tumor Cell Engineering Xiamen University,Xiamen 361005,China State Key Laboratory for Marine Environmental Sciences,Xiamen University,Xiamen,361005,China

Eight transects including sixteen stations were established in the Fugong mangrove (117°54′-117°55′E,24°22′-24°24′N) of the Jiulong River Estuary,Fujian,China.A physical, chemical and microbiological evaluation of sediments was made using measurements of routine physical and chemical properties,and bacterial *** distribution pattern of bacterial α-glucosidase and β-glucosidase activities was investigated using a fluorogenic model substrate (FMS) technique with modification in order to allow better understanding of in situ enzyme activities,as well as their relation to bacterial biomass,metabolic activity and environmental factors in mangrove *** results showed that the enzyme activities of α-glucosidase (10.83～100.86μmol/L/h) and β-glucosidase (39.60～222.75μmol/L/h) varied among the different stations,and the enzyme activities of β-glucosidase were higher than those of α-glucosidase at all *** extracellular enzyme activities were positively related to organic C,organic matter and bacterial *** results also suggest that,based on the activities of α-glucosidase and β-glucosidase,they may be the most important extracellular enzymes in mangrove *** addition,the use of the FMS technique to measure extracellular enzyme activities of mangrove sediments could help us to evaluate their catabolic behavior in situ and so lead to a better understanding of the polluted status of mangrove swamp ecosystems.

关键词： Fluorogenic model substrate α-glucosidase activities β-glucosidase activities Mangrove swamp

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Journal of Environmental Sciences 2006年第2期18卷 236-241页

作者： huaNG hong OU Wen-hua WANG Lian-sheng College of Marine Science and Technology Shanghai Fisheries University Shanghai 200090 China School of Environmental Science and Technology Tongji University Shanghai 200092 China College of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China State Key Laboratory of Pollution Control and Resources Reuse School of the Environment Nanjing University Nanjing 210093 China

The concentrations of semivolatile organic compounds, organochlorine pesticides and heavy metals in sediments from Jiangsu reach of huaihe River, China, were presented. The organic compounds were extracted by acetone： n-hexane using a Soxhlet apparatus and concentrations were performed using HP6890 gas chromatography coupled by FID and ECD detector. The total contents of 8 heavy metals by inductively coupled plasma atomic emission spectrometry or cold-vapor/atomic absorption spectrometry were developed. 30 semivolatile organic compounds were detected, including substituted benzenes, phenols, phthalates and polycyclic aromatic hydrocarbons, from 0.01 to 3.01 mg/kg. 16 organochlorine pesticides were almost detected and from 0.010 to 2.339 μg/kg. Concentrations of major metals were 50 mg/kg or less, mean level of mercury was only 0.055 mg/kg. Compared to sediment quality guidelines （SQGs）, concentrations of some semivolatilc organic compounds were high enough to cause possible toxic effects to living resources. The organochlorine pesticides presented relatively low, lower than threshold effect concentrations （TECs）, harmful effects on sediment-dwelling organisms were not expected. Chromium posed probable toxic effects to the living resources, other heavy metals had no threat temporarily according to SQGs.

关键词： sediment semivolatile organic compounds organochlorinc pcsticidcs heavy mctals sediment quality guiedlines huaihe River