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黑土无机磷形态及其有效性研究

水土保持学报 2004年第3期18卷 85-89页

作者：王艳玲王杰赵兰坡蔡洪光吉林农业大学资源与环境学院吉林长春130118

采用顾、蒋提出的无机磷分级方法,对吉林省黑土进行了无机磷形态组成的研究。结果表明:供试黑土中60%～80%左右的磷以无机磷形式存在,其组成如下:O-P(16.25%～61.0%)>Fe-P(11.4.%～38.63%)>Ca10-P(11.66%～34.4.%)>Al-P(8.71%～23.77%)>Ca2-P(5.17%～22.51%)>Ca8-P(1.81%～27.19%)。利用相关分析和通径分析相结合的方法,研究比较了各组无机磷对有效磷的相对重要性,它们依次是:Ca2-P>Al-P>Fe-P>Ca8-P>O-P>Ca10-P。在吉林省黑土中Ca2-P是主要磷源,而Al-P、Fe-P是Ca2-P的有效补充。黑土中各形态无机磷的组成是相对稳定的,而且它们可以通过自身或者另外一方直接或间接地影响土壤中有效磷的含量。建立了Olsen-P与对其影响较大的二因子间的回归方程:y=2.4.3+0.4.6x1+0.134.3。

关键词：黑土无机磷形态特点有效性

Two new species of the genus Tuber from China

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Two new species of the genus Tuber from China

中国菌物学会第五届会员代表大会暨2011年学术年会

作者： FAN Li~(1*) CAO Jin-Zhong~2 LIU Yan-Yun~1 & LI Yu~(2*) (1 college of Life science,Capital normal university,Xisanhuanbeilu 105,Haidian,Beijing 10004., China 2 Institute of Mycology,{4. Agricultural university,changchun 130118,China)

＜正＞Two new species of the genus Tuber are described from *** lijiangense is differentiated from other brown species mainly by its globose ascospores with a lower reticulated ornamentation,and T. sinoexcavatum is di... 详细信息

关键词： Ascomycota Tuberaceae truffle

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掺铒聚合物光波导放大器的制备与测试

吉林大学学报（理学版） 2009年第2期47卷 354-357页

作者：齐飞张丹陈聪李彤孙旭张大明集成光电子学国家重点联合实验室吉林大学实验区、吉林大学电子科学与工程学院长春130012 厦门大学信息科学与技术学院福建厦门361005 东北师范大学化学学院长春130024

研究掺铒有机聚合物材料Er(DBM)3Phen/PMMA-GMA的光学性质,并测试了该聚合物的吸收光谱和折射率等参数,通过光刻结合反应离子刻蚀技术,利用该材料制备了掺铒聚合物光波导放大器.采用光纤与波导放大器的直接端面耦合方法测试了光波导放... 详细信息

研究掺铒有机聚合物材料Er(DBM)3Phen/PMMA-GMA的光学性质,并测试了该聚合物的吸收光谱和折射率等参数,通过光刻结合反应离子刻蚀技术,利用该材料制备了掺铒聚合物光波导放大器.采用光纤与波导放大器的直接端面耦合方法测试了光波导放大器的特性,结果表明,当输入信号功率为0.2 mW,抽运功率为150 mW时,在1.24.cm长的器件上获得了0.9 dB的相对增益.

关键词：光波导放大器掺铒聚合物相对增益

Geologic disaster appraising effect of the seismic transverse wave reflection method in the excavated area

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Geologic disaster appraising effect of the seismic transvers...

The 2nd International Conference on environmental and Engineering Geophysics

作者： Hui Jin Baishan Xu Zhanjie Shi Shouxin Wen Qingkai Chen School of Resources & Civil Engineering northeastern university Shenyang 110004.China college of Geo-exploration science and Technology {4. university changchun 130026 Chinaa

＜正＞Shallow seismic exploration is a common technology in exploring excavated area of coal mine. But it is unusual that the use of seismic transverse wave（S wave）reflection method in these works. In the paper, based on the general principle of seismic transverse wave reflection method, we researched the rule and the characteristic of the excavated area in the seismic time section. The practical application in Yingcheng coal mine at jilin province explains that seismic transverse wave reflection method is effective to detect the excavated area. The results show that the complex geological problems, such as minor faults, terrenes broken belts and water-bearing caves, could be found out using seismic transverse wave reflection method. Based on the results of exploration, we appraised the geologic disaster for the excavated area.

关键词： seismic transverse wave reflection method excavated area geologic disaster

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国外寒地高层居住建筑与环境设计现状

陕西师范大学学报（自然科学版） 2009年第S1期37卷 109-111页

作者：李晓慧蔡飞夏伟荣吉林建筑工程学院建筑与规划学院吉林长春130000 西北大学城市与资源学系陕西西安710127

寒地城市有独特的地理位置和气候条件,在世界范围内主要分布在北半球高纬度地区.结合寒地气候的负面影响,对国外寒地高层居住建筑及其环境设计进行了探讨,以期对我国北方地区的高层居住建筑设计起到启示作用.

关键词：寒地高层居住建筑设计环境设计

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积极心理健康的内涵解析

心理科学 2009年第2期32卷 487-489页

作者：陈晓娟任俊马甜语浙江师范大学音乐学院浙江金华321004 浙江师范大学心理系浙江金华321004 吉林大学社会心理学系吉林长春130012

学术界一般把积极心理学视野下的心理健康称为积极心理健康,它是当代心理健康相关学科发展的一个潮流。积极心理健康认为消除或摆脱了各种心理问题的人并不一定就意味着心理健康,心理健康还意味着正向力量或积极品质的产生与增加,因此,... 详细信息

学术界一般把积极心理学视野下的心理健康称为积极心理健康,它是当代心理健康相关学科发展的一个潮流。积极心理健康认为消除或摆脱了各种心理问题的人并不一定就意味着心理健康,心理健康还意味着正向力量或积极品质的产生与增加,因此,心理健康相关学科在研究人的各种心理问题的同时,也应该花相同精力或时间去研究人的积极力量和积极品质。在研究思路上,积极心理健康也表现出了一个非常明显的新特点,强调心理健康研究要从以关注个体总的心理状态为主的研究思路转向于以关注个体内差异为主的研究思路。

关键词：积极心理健康积极力量 P技术

Establishment of two types of mammary epithelial cell lines from Chinese Holstein dairy cow

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Establishment of two types of mammary epithelial cell lines ...

中国畜牧兽医学会养牛学分会2011年学术研讨会

作者： Chunyan Lu,Runjun Yang,Boyang Liu, Zezhong Li,Liying Zhang and Zhihui Zhao~* college of Animal science and Veterinary Medicine,and jilin Provincial Key Laboratory of Animal Embryo Engineering,jilin {4.,5333 Xi’an Road,changchun,jilin Province,130062,China

Chinese Holstein dairy cow is the main dairy cow in *** the development of Chinese milk industry, more attention is being placed on the factors that might affect milk quality,especially milk fat and milk protein *** the objective of this study was to establish a culture system for two types of bovine mammary epithelial cell line,high fat high protein mammary epithelial cell line(MEC-HH) and low fat low protein mammary epithelial cell line(MEC-LL) in vitro,and elucidate the unique characteristics of these cell *** tissues from two lactating dairy cows whose milk were high fat high protein content and low fat low protein content were used as sources of these epithelial cell *** tissues were cultured in plastic dishes by the method of tissue nubbles *** and epithelial cells successively grew and extended from mammary tissues after 6 days from low fat low protein cow but 10 days from high fat high protein cow and pure epithelial cells were obtained by continuous culture and digestion for 3-5 *** epithelial cells cultured in the 10% FBS maintained a normal growth tendency,and had normal cell *** a-s1 casein and k-casein expression of epithelial cells were detected by *** positive immunocytochemistry to cytokeratin 18 suggested the obtained cell line exhibited the specific character of epithelial cells.A TG-kit was used to detect the TG content of the two types of cells,the results showed that the cell lines kept the character of high fat and low fat cows in the first and second *** obtained mammary epithelial cell lines had normal morphology,growth characteristics,cytogenetic and secretory ***, it might supply a useful tool for studying the gene function about milk fat and *** research provides the basis for the future study of lipometabolism mechanism in dairy cow.

关键词： MEC-HH MEC-LL Chinese Holstein dairy cow cell lines