北京师范大学学报

北京师范大学学报 (自然科学版)

JOURNAL OF BEIJING NORMALUNIVERSITY (NATURAL SCIENCE)

2012年6月第48卷第3期 Vol.48 No.3 Jun. 2012

目次 CONTENTS

下临界多物种分支过程后代总人口数生成函数……张美娟 (221)摘要

The generating function of total progeny in a subcritical multi-type branching process……ZHANG Meijuan

双边吸收边界生灭过程的特征值估计……张驰张余辉 (225)摘要

Estimation of the eigenvalue for the birth and death process with bilateral absorbing boundaries……ZHANG Chi ZHANG Yuhui

三次系统中13个极限环的一种新分布……赵丽琴 (231)摘要

A new configuration of 13 limit cycles for a cubic system……ZHAO Liqin

微分形式吴方法在Lie对称中的应用……田毅闫在在 (235)摘要

An application of differential form Wus method in Lie symmetry……TIAN Yi YAN Zaizai

从Finsler曲面出发的弱调和映射的正则性……赵亮 (241)摘要

Regularity of weakly harmonic maps from Finsler surfaces……ZHAO Liang

分数维方法研究有限深抛物量子阱中的极化子……杨汉伟田强 (244)摘要

Polaron effect in finite parabolic quantum well: a fractional-dimensional space approach……YANG Hanwei TIAN Qiang

一个2N体问题空间中心构型的存在性……刘文忠刘梦孙艳春张同杰 (247)摘要

The existence of a spatial central configuration for 2N-body problem……LIU Wenzhong LIU Meng SUN Yanchun ZHANG Tongjie

离子注入选育莲的矿质元素与重金属元素的吸收分析……张建华王乃彦张丰收 (254)摘要

Absorption of heavy metals and mineral elements by Lotus: improvement by ion plantation……ZHANG Jianhua WANG Naiyan ZHANG Fengshou

基于最小二乘的MEVVA源产生的金属镍等离子发射谱线的单峰拟合……邓春凤廖斌张旭李璟王锴吴先映 (257)摘要

Single peak fitting based on least squares during emission spectral diagnosis of nickel plasma produced by MEVVA ion source……DENG Chunfeng LIAO Bin ZHANG Xu LI Jing WANG Kai WU Xianying

用于DOA测量的闭合环天线研究……赵嘉功陈洁张涛杜树成苏颖 (263)摘要

On closed loop antennas for DOA of electromagnetic wave……ZHAO Jiagong CHEN Jie ZHANG Tao DU Shucheng SU Ying

熊果酸抑制脂肪酸合酶及诱导HepG2细胞凋亡机制研究……樊慧锦田维熙马晓丰 (266)摘要

Ursolic acid induced HepG2 cells apoptosis via inhibiting fatty acid synthase……FAN Huijin TIAN Weixi MA Xiaofeng

放牧对贝加尔针茅草原植物个体和群落生物量分配的影响……张景慧祁瑜王艳黄永梅 (270)摘要

The effects of grazing on individual-level and community-level biomass allocation of the Stipa baicalensis steppe……ZHANG Jinghui QI Yu WANG Yan HUANG Yongmei

城市居民小区SWMM降雨径流过程模拟——以营口市贵都花园小区为例……张倩苏保林袁军营 (276)摘要

Simulating rainfall-runoff in urban residential area based on SWMM……ZHANG Qian SU Baolin YUAN Junying

区域农业干旱脆弱性评价及影响因素识别——以河南、河北省为例……赵菲菲何斌李小涵王前锋 (282)摘要

Assessment of regional agricultural drought vulnerability and identification of main influencing factors:a case study in Hebei and Henan province……ZHAO Feifei HE Bin LI Xiaohan WANG Qianfeng

含砷废水、废渣的处理处置技术现状……赵金艳王金生郑骥 (287)摘要

Treatment and disposal technologies of arsenic waste water and residue……ZHAO Jinyan WANG Jinsheng ZHENG Ji

塔克拉玛干沙漠高大沙垄区垄间地沿主风向连续分布新月形沙丘表面沙粒粒度特征……贺佳嘉全占军潘美慧程宏伍永秋张艺磊王智超 (292)摘要

Characteristics of grain-size over four barchan dunes distributed downward engineering system of prevention and control of desertification of Taklimakan desert highway along wind direction in interdune corridor of ridges……HE Jiajia QUAN Zhanjun PAN Meihui CHENG Hong WU Yongqiu ZHANG Yilei WANG Zhichao

家庭盆栽节水潜力分析……孙成竹范瑛蒋志云 (298)摘要

Water saving potential for family pot plants……SUN Chengzhu FAN Ying JIANG Zhiyun

东道主效应的测算——兼论伦敦奥运会中国金牌数超越美国的必然性……吴殿廷郭谦姜桂萍纪仲秋 (302)摘要

Calculation of home advantage and analysis of inevitability China exceeding US in gold medals in The London Olympics Games……WU Dianting GUO Qian JIANG Guiping JI Zhongqiu

内蒙古太仆寺旗土地利用景观格局与空间动态特征分析……李悦高琼徐霞兰玉芳胡英敏 (306)摘要

Landscape pattern and spatial feature of land use in Taips county in Inner Mogolia……LI Yue GAO Qiong XU Xia LAN Yufang HU Yingmin

信息不对称引发的银行挤兑和风险传染模型……王怡李红刚 (313)摘要

Bank runs, risk contagion and asymmetric information……WANG Yi LI Honggang

适应性网络上具有潜伏期机制的传染病传播……张晶万宝惠樊瑛 (318)摘要

Epidemic spreading in adaptive networks with an incubation mechanism……ZHANG Jing WAN Baohui FAN Ying

LC-MS／MS法测定人血浆中克拉霉素的质量浓度……李鹏飞孙健姿马萍王燕王静张茜谢小娟刘丽宏 (323)摘要

LC-MS／MS determination of clarithromycin in human plasma……LI Pengfei SUN Jianzi MA Ping WANG Yan WANG Jing ZHANG Xi XIE Xiaojuan LIU Lihong

基于模糊数学的体育教育训练学硕士研究生培养质量评价方法……陈少青杨国庆冯海波 (327)摘要

Evaluating postgraduate quality in physical education and training based on fuzzy mathematics……CHEN Shaoqing YANG Guoqing FENG Haibo

生物多样性与生态工程教育部重点实验室……(封二)