检索结果-南通市图书馆

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

棉针织物铜或锰金属配合物漂白机理

印染 2024年第6期50卷 13-17页

作者：李荣健温淑娟毛志平陈八斤金鲜花纪柏林东华大学化学与化工学院上海201620 东华大学国家染整工程技术研究中心上海201620 杭州传化精细化工有限公司浙江杭州310000 浙江传化功能新材料有限公司浙江杭州310000

为了阐明金属配合物对棉针织物的漂白机理及性能,研究了多吡啶类铜配合物(CAT-3)与大环多胺类锰配合物(JK500)对棉针织物白度和双氧水(H_(2)O_(2))分解率的影响。结果表明:CAT-3作催化剂时,优化的漂白工艺为NaOH 1.0 g/L、H_(2)O_(2)13 ... 详细信息

为了阐明金属配合物对棉针织物的漂白机理及性能,研究了多吡啶类铜配合物(CAT-3)与大环多胺类锰配合物(JK500)对棉针织物白度和双氧水(H_(2)O_(2))分解率的影响。结果表明:CAT-3作催化剂时,优化的漂白工艺为NaOH 1.0 g/L、H_(2)O_(2)13 g/L、CAT-32.0 g/L,织物白度为68.97%;JK500作催化剂时,漂白优化工艺为NaOH 2.0 g/L、H_(2)O_(2)13 g/L、JK5002.5 g/L,织物白度为65.92%。75℃处理60 min后,CAT-3/H_(2)O_(2)体系中H_(2)O_(2)分解率达到60.93%,远高于无CAT-3时的12.31%;JK500/H_(2)O_(2)体系中H_(2)O_(2)分解率为19.25%,未加JK500时的分解率为18.18%。CAT-3/H_(2)O_(2)体系的羟基自由基(HO·)荧光检测强度远高于对照组C_(0);JK500/H_(2)O_(2)及其对照组J0体系的HO·荧光强度均较小;超氧自由基(O_(2)^(-)·)是两种催化体系有效的漂白活性成分,而单线态氧(1O2)对织物白度基本无影响。

关键词：金属配合物低温漂白棉针织物羟基自由基超氧自由基

基于拉曼光谱技术的聚合物材料制备与组成分布的研究进展

在线全文

学校读者我要写书评

暂无评论

高校化学工程学报 2024年第3期38卷 341-353页

作者：卫人予陈八斤邓维吴徐冰包界杰张浩然吴彬王小君 LIm Khak Ho 王文俊浙江大学工程师学院衢州分院浙江衢州324000 浙江大学衢州研究院浙江衢州324000 浙江传化化学集团浙江杭州311215 化学工程联合国家重点实验室(浙江大学) 浙江杭州310058

聚合物材料制备过程和聚合物中添加剂的含量及分布决定了材料的性能,拉曼光谱技术为相关研究提供了一种有效的表征手段。基于拉曼光谱的基本原理,介绍了表面增强拉曼光谱、拉曼光谱成像、激光显微共聚焦拉曼光谱等多种拉曼光谱衍生技术... 详细信息

聚合物材料制备过程和聚合物中添加剂的含量及分布决定了材料的性能,拉曼光谱技术为相关研究提供了一种有效的表征手段。基于拉曼光谱的基本原理,介绍了表面增强拉曼光谱、拉曼光谱成像、激光显微共聚焦拉曼光谱等多种拉曼光谱衍生技术,总结了相关技术在聚合物加工和聚合反应过程中的应用,评述了聚合物中添加剂分布的检测,涵盖了乳化剂、染料以及其他添加剂的浓度、分布及迁移规律等,并对拉曼光谱衍生技术进行了展望。

关键词：拉曼光谱显微拉曼光谱拉曼光谱成像技术聚合物材料添加剂

Exceptionally flame-retardant flexible polyurethane foam composites:synergistic effect of the silicone resin/graphene oxide coating

在线全文

学校读者我要写书评

暂无评论

Frontiers of Chemical Science and Engineering 2021年第4期15卷 969-983页

作者： Qian Wu Jincheng Zhang Shengpeng Wang bajin Chen Yijun Feng Yongbing Pei Yue Yan Longcheng Tang Huayu Qiu Lianbin Wu Key Laboratory of Organosilicon Chemistry and materials Technology of ministry of Education Hangzhou Normal UniversityHangzhou 311121China Collaborative Innovation Center of Zhejiang Province for manufacturing of Fluorine Silicon Fine Chemicals and materials Hangzhou Normal UniversityHangzhou 311121China Transfar Zhilian Co. Ltd.Hangzhou 311215China

A facile strategy was developed to fabricate flexible polyurethane(PU)foam composites with exceptional flame *** approach involves the incorporation of graphene oxide(GO)into a silicone resin(SiR)solution,which is then deposited onto a PU foam surface via the dip-coating technique and ***-transform infrared spectroscopy,scanning electron microscopy,and Raman spectroscopy measurements demonstrated that the SiR and GO were successfully coated onto the PU skeleton and the intrinsic porous structure of the PU foam remained *** effects of SiR and GO on the mechanical and thermal stability and flame retardancy of PU composites were evaluated through compression tests,thermogravimetric analysis,vertical combustion tests,and the limiting oxygen *** measurement results revealed that the composites(PU@SiR-GO)showed superior flame retardancy and thermal and mechanical stability compared to pristine PU or PU coated with SiR *** mechanical and thermal stability and the flame-retardant properties of the PU composites were enhanced significantly with increasing GO *** on the composition,microstructure,and surface morphology of PU@SiR-GO composites before and after combustion tests,a possible flame-retardance mechanism is *** work provides a simple and effective strategy for fabricating flame retardant composites with improved mechanical performance.

关键词： flame retardancy flexible polyurethane foam graphene oxide silicone resin

Diet and feeding behavior of a group of high-altitude rhesus macaques: high adaptation to food shortages and seasonal fluctuations

在线全文

学校读者我要写书评

暂无评论

Current Zoology 2023年第3期69卷 304-314页

作者： Kechu Zhang Fazal Karim Zuxiang Jin Hongtao Xiao Yongfang Yao Qingyong Ni bajin Li Wangjia Pu-Cuo Zhonghao Huang Huailiang Xu College of Life Science Sichuan Agricultural UniversityNo.46 Xinkang RoadYucheng DistrictYa'anSichuan 625014China Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection(Guangxi Normal University) Ministry of EducationNo.1Yanzhong RoadYanshan DistrictGuilingGuangxi 541006China College of Animal Science and Technology Sichuan Agricultural UniversityNo.211 Huimin RoadWenjiang DistrictChengduSichuan 611130China Gexigou National Nature Reserve Administration Yajiang Forestry and Grassland AdministrationNo.88 Jiefang RoadYajiang CountyGanziSichuan 627450China

Diet and feeding behavior data are crucial to a deep understanding of the behavioral response and adaptation of primates to a high-altitude *** August 2019 to June 2021,we collected data on the feeding behavior of a high-altitude rhesus macaque macaca mulatta group from Yajiang County,Western Sichuan Plateau,which has an altitude of over 3,500 *** results showed that feeding(33.0±1.8%)and moving(28.3±2.6%)were the dominant behavior of rhesus *** ate 193 food items,comprising 11 food categories from 90 *** study found that plant roots(30.9±30.1%)and young leaves(28.0±33.1%)were the main foods eaten by *** preferred foods of rhesus macaques were young leaves,fruits,and seeds,and the consumption of these items was positively correlated with its food *** the availability of preferred foods was low,macaques took plant roots,barks,and fallen leaves as fallback *** particular,roots were a dominant food item in winter,and this way of feeding became a key survival *** results suggest that,facing the relative scarcity and strong seasonal fluctuations of food resources in high-altitude habitat,macaques adopt active foraging strategies,relying on a variety of food species and adjusting flexibly their food choices based on food availability,which may help to maximize the energy efficiency of high-altitude macaques.

关键词： diet foraging strategy fallback food high-altitude habitat macaca mulatta

Anodic behavior of neodymium in acidic AlCl_3-1-ethyl-3-methyl-imidazolium chloride ionic liquid

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Rare Earths 2015年第7期33卷 776-782页

作者：曲瑞江奕东徐霸津丁晶晶廖成凌国平 College of materials Science and Engineering Zhejiang University Chengdu Green Energy and Green manufacturing Technology R&D Centre

The anodic behavior of neodymium in acidic AlCl3-1-ethyl-3-methyl-imidazolium chloride （AIC13-EmIC） ionic liquid was investigated by conducting linear sweep voltammeter and chonopotentiometry. The viscosity of Nd dissolved ionic liquid and the surface morphologies of Nd were characterized using an Ostwald viscometer and a scanning electron microscope, respectively. The chemical composition of Nd surface was indentified by Raman spectra. The results showed that dissolution of Nd under anodic polarization occurred after the breakdown of oxide films. A viscous layer formed at the interface of Nd/ionic liquid during the galvanostatic process of 5 and 20 mA/cm^2. The formation of viscous layer was attributed to the accumulation of Nd dissolved AlCl3-EmIC ionic liquid, which had high viscosity. The oxide films could be removed thoroughly and the surface of Nd was homogeneous without etching pits, when viscous layer formed in the anodic process. Otherwise, the surface showed a pitting morphology.

关键词： neodymium ionic liquid AlCl3-1-ethyl-3-methyl-imidazolium chloride anodic process viscous layer rare earths

在线全文

学校读者我要写书评

暂无评论

茫崖资源开发探析

青海社会科学 2006年第1期 38-41页

作者：刘巴矜中共茫崖工委

本文对青海茫崖地区资源开发历程作了回顾,对茫崖资源开发的有利条件、存在问题作了分析。在此基础上,提出了加快茫崖资源开发的措施。

关键词：茫崖资源开发

匹克威克综合征和阻塞性睡眠呼吸暂停综合征相关性假性脑瘤(英文)

在线全文

学校读者我要写书评

暂无评论

国际眼科杂志 2011年第4期11卷 581-583页

作者： Ozlem Barut Selver meltem Soylev bajin Oya Itil Ali Osman Saatci Dokuz Eylul大学眼科土耳共伊兹常尔 Dokuz Eylul大学呼吸科土耳共伊兹密尔

目的:报告1例男性患者合并有匹克威克综合征和阻塞性睡眠呼吸暂停(OSA),其临床表现为假性脑瘤和视力下降。方法:病例报告。结果:患者,男,54岁,过度肥胖,诉双眼视力渐降3mo,检查示:视力:右眼20/200,左眼20/400,左眼合并色觉异常,眼底镜... 详细信息

目的:报告1例男性患者合并有匹克威克综合征和阻塞性睡眠呼吸暂停(OSA),其临床表现为假性脑瘤和视力下降。方法:病例报告。结果:患者,男,54岁,过度肥胖,诉双眼视力渐降3mo,检查示:视力:右眼20/200,左眼20/400,左眼合并色觉异常,眼底镜示双视乳头水肿和视盘旁出血,左眼合并黄斑部渗出。体格检查和实验室检查符合阻塞性睡眠呼吸暂停与匹克威克综合征诊断。腰椎穿刺:开放压350mmHg,脑部扫描正常。诊断:OSA和匹克威克综合征相关性假性脑瘤。眼底表现和视力随采血治疗、血压控制、体重控制及双层正压通气治疗而改善。结论:对于患有假性脑瘤的患者,必须对阻塞性睡眠呼吸暂停与匹克威克综合征有所警惕。

关键词：慢性通气不足阻塞性睡眠呼吸暂停综合征视神经乳头水肿匹克威克综合征

Recipient cytotoxic T lymphocyte antigen 4 +49 single-nucleotide polymorphism is not associated with acute rejection after liver transplantation in Chinese population

在线全文

学校读者我要写书评

暂无评论

Recipient cytotoxic T lymphocyte antigen 4 +49 single-nucleo...

2012中国器官移植大会

作者： Zhijun Jiang,Ying Chen,Xiaonin Feng,bajin Wei,Haiyang Xie,Lin Zhou,Shusen Zheng 浙江大学医学院附属第一医院肝胆胰外科

【Background】Cytotoxic T lymphocyteantigen 4(CTLA-4) acts as a negative regulator of immune response and has beendemonstrated to play an important role in transplant ***-nucleotide polymorphisms(SNPs) in CTLA-4 gene have been detected andproved to associate with the incidence of rejection after ***,previous studies gained inconsistent results about the associationbetween CTLA-4 +49 single-nucleotide polymorphism and susceptibility ofallograft *** we sought to clarify whether CTLA-4 +49 SNPinfluences the incidence of acute rejection after liver transplantation inChinese population.

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

基于Haar小波的图像变换方法的研究

微计算机信息 2006年第1X期22卷 275-277页

作者：薛智刚李巴津呼和浩特内蒙古工业大学信息工程学院 010051

系统地介绍了基于快速滤波器组卷积算法的第一代小波和基于提升方案的第二代小波。通过对图像先行后列分离,结合惰性滤波器进行奇偶分割,由欧几里得算法求出预测算子和更新算子,实现了由此提升方案构造的Haar小波1级图像分解。实验结果... 详细信息

系统地介绍了基于快速滤波器组卷积算法的第一代小波和基于提升方案的第二代小波。通过对图像先行后列分离,结合惰性滤波器进行奇偶分割,由欧几里得算法求出预测算子和更新算子,实现了由此提升方案构造的Haar小波1级图像分解。实验结果表明提升方案构造的Haar小波实现起来相当容易,简化了很多复杂的计算过程,其本身的诸多特点更便于在实际中应用,且在变换后的效果上,与第一代基本无差异。

关键词：小波变换 Haar小波完全重构滤波器组可分离小波基提升方案