oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 5 )

2018 ( 185 )

2017 ( 236 )

2016 ( 242 )

Custom range...

Search Results: 1 - 10 of 5910 matches for " 臧婧 "
All listed articles are free for downloading (OA Articles)
Page 1 /5910
Display every page Item
健康对城市家庭金融资产配置的影响中国的微观证据
胡振,,日宏
- , 2015, DOI: 10.15936/j.cnki.10083758.2015.02.007
Abstract: 摘要 利用 “中国城镇居民家庭消费金融研究”课题组最新公布的数据,研究健康状况对中国城市家庭金融资产配置的影响。研究发现:健康变量、经济变量和人口统计学变量对城镇家庭不同类型金融资产的影响上存在差异,健康状况的恶化会降低金融资产特别是风险资产的持有;东部地区风险资产在家庭金融资产中的比重较中西部地区高,健康状况好的家庭持有风险资产的概率比健康状况差的家庭高2~3个百分点;经济类变量对金融资产持有额的影响是根本性的。
Abstract:Using the newly released data by the research team of Chinas Urban Household Consumer Finance, this paper explores the effect of health on Chinese urban household financial asset allocation. It has been found that such variables as health status, economy and demography may exert varied effects on the different types of urban household financial assets. Health deterioration tends to reduce the financial assets, especially the risk assets, which are held by urban households. The proportion of risk assets held in the east is higher compared to the central and western regions. A household in good condition has a 2%~3% higher probability of holding risk assets than the one in poor health. The effect of economy on financial asset holding is fundamental.
县域农村金融排斥地域差异及影响因素研究
Research on regional differences and influential factors of county rural financial exclusion

胡振,,日宏
- , 2015,
Abstract: 利用灰色关联分析法和灰色聚类分析法,基于吉林省39个县的数据,对县域农村金融排斥地域差异及影响因素进行测度,结果表明:1)吉林省县域金融排斥严重,金融排斥指数FEI(Financial exclusion index)> 0.5的县占44%;2)县域农村金融排斥存在显著的地域差异,FEI> 0.5的县,50%以上分布在东部地区;3)东部地区半数以上的县FEI≥0.5;4)第一产业比重越高、城乡收入差距越大,则农村金融排斥越严重;5)工资性收入的比重越高、农村金融贡献度越大、农户人均收入水平越高,则金融排斥程度越低.缓解农村金融排斥应该根据影响因素的作用方向采取针对性措施.
The regional differences and influencing factors of rural financial exclusion of 39 counties in Jilin province are studied in this research by using the methods of grey correlation analysis and grey clustering analysis.The results show that:1) county financial exclusion is serious in Jilin province,and the number of country that FEI(Financial Exclusion Index) is greater than 0.5 take up 44%;2)Regional differences of county rural financial exclusion are obvious,and more than 50% country that FEI is greater than 0.5 distribute in the east area;3) Half of the county that FEI is greater than 0.5 are located in the eastern region;4) The higher the proportion of primary industry or the greater the income gap between urban-rural areas,the worse rural financial exclusion;5) The higher the proportion of wage income or the bigger the rural financial contribution or the higher the farmers per capita income level,the lower the degree of financial exclusion.Rural financial exclusion can be alleviated by taking corresponding measures according to influencing factors.
CaH2对Cu-Ce-La-ZSM-5催化分解NO性能的影响
玉魏,钟秦,
环境工程学报 , 2010,
Abstract: 实验采用一步离子交换法制备Cu-Ce-La-ZSM-5催化剂,然后采用共混法制得Cu-Ce-La-ZSM-5/CaH2催化剂。采用扫描电镜(SEM),电感耦合等离子体发射光谱(ICP-AES),X射线衍射(XRD),红外(FTIR)以及NO吸脱附(NO-TPD)对催化剂进行表征。结果显示CaH2的加入使得催化剂中铜离子存在形式发生变化,催化剂表面变光滑洁净,并且吸附NO能力增强。NO催化分解实验的结果表明CaH2提高了催化剂活性和抗氧性。CaH2助催性是由于其受热分解过程中产生的H2能将Cu2+还原为具有催化活性的Cu+,同时使催化剂表面洁净光滑更容易吸附NO。
1-氰基-中氮茚-3-[N-(2-氨基乙基)]甲酰胺的合成及其Cu2+荧光探针行为
,,欣欣,,,王炳祥
南京师范大学学报(自然科学版) , 2015,
Abstract: 设计合成了1-氰基-中氮茚-3-[N-(2-氨基乙基)]甲酰胺(化合物3). 通过IR,1H NMR对其结构进行了表征,测试了其紫外光谱和荧光光谱,研究了其对Cu2+、Zn2+、Ni2+、Co2+、Mg2+、Na+、K+和Ca2+的识别作用,发现Zn2+、Ni2+、Co2+、Mg2+、Na+、K+和Ca2+对化合物3的荧光光谱几乎没有影响,但Cu2+对化合物3有非常强大亲和力,Cu2+可以使化合物3的荧光发射明显猝灭,化合物3在DMSO溶剂中作为铜离子荧光探针,受常见离子干扰较小,对于铜离子有着较高的选择性.
We report here the synthesis of 1-cyano-indolizine-3-[N-(2-aminoethyl)]carboxamide(No.3 compound)and the study of it as fluorescent probe for Cu2+ ions. The structure of the compound 3 was determined by IR,1H NMR. Its UV and fluorescence spectra were measured. The influences of eight metal ions such as Cu2+,Zn2+,Ni2+,Co2+,Mg2+,Na+,K+and Ca2+ on its fluorescence property was studied. Spectroscopic study revealed that the compound 3 had rather strong affinity toward Cu2+. The specificity of the compound 3 toward Cu2+was determined. Nearly no fluorescence intensity changes were observed in emission spectra with Zn2+,Ca2+,Na+,K+,Mg2+but Ni2+ and Co2+. However,under identical conditions,the study showed fluorescence quenching from Cu2+. So we have developed a new fluorescent sensor. It showed high selectivity toward Cu2+ in DMSO
Impact of CaH2 on NO decomposition by Cu-Ce-La-ZSM-5
CaH2对Cu-Ce-La-ZSM-5催化分解NO性能的影响

Zang Yuwei,Zhong Qin,Zhang Jingjing,
玉魏
,钟秦,

环境工程学报 , 2010,
Abstract: 实验采用一步离子交换法制备Cu-Ce-La-ZSM-5催化剂,然后采用共混法制得Cu-Ce-La-ZSM-5/CaH2催化剂。采用扫描电镜(SEM),电感耦合等离子体发射光谱(ICP-AES),X射线衍射(XRD),红外(FTIR)以及NO吸脱附(NO-TPD)对催化剂进行表征。结果显示CaH2的加入使得催化剂中铜离子存在形式发生变化,催化剂表面变光滑洁净,并且吸附NO能力增强。NO催化分解实验的结果表明CaH2提高了催化剂活性和抗氧性。CaH2助催性是由于其受热分解过程中产生的H2能将Cu2+还原为具有催化活性的Cu+,同时使催化剂表面洁净光滑更容易吸附NO。
Salt resistance of different tomato genotypes at seed germination stage.
不同基因型番茄种子萌发期的耐盐性

杨凤军,李天来,,宿越,鲁少尉
应用生态学报 , 2009,
Abstract: 选用14种不同基因型番茄进行萌芽期NaCl胁迫耐盐性筛选,对相对发芽势和相对发芽率两项指标进行聚类分析,将其划分为耐盐性强(5种)和耐盐性弱(9种)两类,从中选出4种耐盐性和生物性状不同的番茄(耐盐性强:野生醋栗番茄、小果型辽园红玛瑙、大果型红宝石;耐盐性弱:大果型辽园红多丽)分别进行不同种类钠盐以及NaCl、Na+、Cl-两组胁迫试验.结果表明:4种不同基因型番茄对各种盐胁迫响应与NaCl的鉴定结果一致;不同Na+盐中碱性盐NaHCO3对番茄的影响最大,在100 mmol·L-1 Na+浓度下,4种基因型番茄的相对胚芽长度都在8%以下,5种盐对番茄种子萌发的抑制顺序为:NaNO3
基于envisatasar影像的湿地植被冠层下淹水范围提取以扎龙保护区为例
刘蕾,那晓东,淑英,
遥感技术与研究 , 2014,
Abstract: 以扎龙自然保护区湿地为例,结合envisatasar多极化(hh/hv)雷达影像与传统的光学影像landsattm(band1~5,7),分析雷达影像后向散射系数与landsattm影像不同波段反射率在淹水植被、非淹水植被、明水面和裸土不同地表覆被类型的差异。选择训练样本,采用分类回归树(classificationandregressiontree,cart)模型,分别对两种影像进行分类,可视化表达湿地植被淹水范围空间分布情况。基于实测的植被冠层下淹水范围与非淹水范围样本点对两种数据源的分类结果进行精度验证。结果表明:hh/hv极化影像中,植被覆盖下水体的后向散射系数与其他地表覆被类型有明显区别,分类结果总精度为79.49%,kappa系数为0.70,湿地植被淹水范围提取精度较高。而tm影像分类结果中,由于部分地区植被覆盖水体,淹水植被分类误差较高。将雷达影像引入沼泽湿地研究,提高了植被淹水范围提取效果,为有效分析湿地生态水文过程提供基础,对湿地水资源合理利用及生物多样性保护具有重要意义。
不同基因型番茄种子萌发期的耐盐性
杨凤军,李天来,,宿越,鲁少尉
应用生态学报 , 2009,
Abstract: 选用14种不同基因型番茄进行萌芽期nacl胁迫耐盐性筛选,对相对发芽势和相对发芽率两项指标进行聚类分析,将其划分为耐盐性强(5种)和耐盐性弱(9种)两类,从中选出4种耐盐性和生物性状不同的番茄(耐盐性强:野生醋栗番茄、小果型辽园红玛瑙、大果型红宝石;耐盐性弱:大果型辽园红多丽)分别进行不同种类钠盐以及nacl、na+、cl-两组胁迫试验.结果表明:4种不同基因型番茄对各种盐胁迫响应与nacl的鉴定结果一致;不同na+盐中碱性盐nahco3对番茄的影响最大,在100mmol·l-1na+浓度下,4种基因型番茄的相对胚芽长度都在8%以下,5种盐对番茄种子萌发的抑制顺序为:nano3
CdS量子点敏化TiO2薄膜电极的制备和光电化学性能
,赵高凌,金鑫,宋斌,李红,韩高荣
硅酸盐学报 , 2011,
Abstract: 用水热微乳法制备了结晶性良好的CdS量子点,并通过连接分子巯基乙酸将CdS量子点自组装到多孔TiO2薄膜电极上。结果表明CdS纳米颗粒的平均直径约为5nm,小于其量子尺寸;微乳体系为化学反应提供了良好的微型反应器,抑制了CdS晶粒的长大,而水热过程增强了CdS纳米颗粒的结晶性;由于CdS的可见光响应作用和CdS量子点的量子效应,CdS量子点敏化TiO2薄膜电极样品具有比纯TiO2薄膜电极样品更高的可见光响应和光电流。讨论了CdS量子点通过连接分子组装到TiO2薄膜上的机理。
慢性肾功能不全合并铁粒幼细胞性贫血一例
,徐春红,刘芳,黄佑群,,黄颂敏
华西医学 , 2011,
Abstract:
Page 1 /5910
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.