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中国居民文化消费:地区差距、结构性差异及其改进*

财贸经济 , 2013,
Abstract: 文化消费是实现文化产业振兴的关键所在,本文重点分析我国城乡居民文化消费的总量和结构,发现当前我国的文化消费存在显著的城乡差距、地区差距和结构性差异,发展性文化消费与娱乐性文化消费的比例不均衡,由此有针对性地提出促进我国城乡文化消费水平提升的政策建议。
不同灌溉方式下林地土壤水分物理性质的初探
 
北方园艺 , 2010, DOI: 10.11937/bfyy.201017005
Abstract:
pa11/pvdf合金材料的电性能研究

武汉理工大学学报 , 2007,
Abstract: ?采用pa11和pvdf两种聚合物基体,通过模压工艺制备了pa11/pvdf合金材料,研究了合金材料的介电性能与压电性能。通过xrd和sem测试对样品的微观形态进行了研究。
Research on Bayesian network structure learning algorithm for context-aware computing
面向上下文感知计算的贝叶斯网络结构自学习算法的研究

LI Rui,LI Shi-lun,<br>,仕伦
计算机应用研究 , 2010,
Abstract: By analyzing the characteristics of context in context-aware computing, this paper presented a generic context-aware computing-oriented algorithm for Bayesian network structure learning. With sufficient data the relationships between contexts could be found by the algorithm, and a Bayesian network structure used for context inference could be formed consequently. Theoretical and experimental results all show that the algorithm can find a Bayesian network structure similar with the optimal with affordable search time.
Genetic differentiation in resting-egg bank of the rotifer Brachionus calyciflorus population in Xihai Pond, Beijing
北京西海萼花臂尾轮虫(Brachionus calyciflorus)种群休眠卵库的遗传分化

LI Li,NIU Cui-Juan,MA Rui,<br>,牛翠娟,
生态学报 , 2009,
Abstract: 利用线粒体细胞色素氧化酶Ⅰ亚基(COI)序列片段(543bp)对孵化自西海萼花臂尾轮虫休眠卵库的46个克隆进行分析,共发现6个单倍型,平均遗传距离为0.032,分别聚在2个分支.选取4个出现频率较高的克隆群,分别对其在3种食物浓度(蛋白核小球藻Chlorella pyrenoidosa,1×106 cells/ml,6×106 cells/ml,12×106 cells/ml)和3种温度(15℃,25℃,35℃;蛋白核小球藻Chlorella pyrenoidosa,6×106 cells/ml)下的适合度特征(R0和rm)以及个体大小(背甲长和背甲宽)进行比较研究.生命表实验结果显示,单倍型与食物浓度的交互作用(R0:P=0.038;rm:P=0.027)以及单倍型与温度的交互作用(R0:P=0.006;rm:P=0.000)对种群增长均有显著影响,这4个单倍型克隆群对环境条件具有不同的偏好,并且各个克隆群对于环境变化有不同的生殖反应.形态测量结果显示,单倍型与温度的交互作用(背甲长:P=0.033;背甲宽:P=0.000)以及单倍型与温度的交互作用(背甲长:P=0.027;背甲宽:P=0.000)对个体大小均有明显的影响.结合生命表及形态数据,探讨了休眠卵库中各个克隆群的生态位及形态分化以及可能对种群结构的动态变化产生的影响.
Multiple Positive Solutions for Even Order Sturm-Liouville Boundary Value Problems
偶数阶Sturm-Liouville边值问题的多个正解

Sun Hongrui,Li Wantong,<br>孙红,万同
数学物理学报(A辑) , 2006,
Abstract: 该文讨论了偶数阶边值问题(-1)~m y~(2m)=f(t,y),0≤t≤1,α_(i 1y)~(2i)(0)-β_(i 1y)~(2i 1)(0)=0,γ_(i 1y)~(2i)(1) δ_(i 1y)~(2i 1)(1)=0,0≤i≤m-1正解的存在性.借助于Leggett-Williams不动点定理,建立了该问题存在三个及任意奇数个正解的充分条件.
Analysis on Papers and Authors Published in Journal of Northwest Agriculture and Forestry University ( Natural Science Edition) from 2001 ~ 2004
《西北农林科技大学学报(自然科学版)》2001-2004年载文及其作者群分析

WEN XiaoPing,DOU ChunRui,QU LiChun,<br>温晓平,窦春,
中国科技期刊研究 , 2006,
Abstract: 对《西北农林科技大学学报(自然科学版)》2001—2004年刊载论文的学科分类、基金论文率、平均作者数和作者地区分布、机构分布、年龄状况、职称结构、学历层次、合著率、核心作者分布及论文的被引用情况等进行了统计与分析,找出了办刊中存在的不足,并提出了有针对性的建议。
A PRELIMINARY STUDY OF THE BLOOD PICTURE IN THE BUDORCAS TAXICOLOR HODGSON
羚牛血液初步研究

Qu Hong Dang Ruiye,<br>屈虹,,王强,尧述
动物学研究 , 1987,
Abstract: The recognition that composition of blood in the Budorcas taxicolor Hodgson has a significant function on which know the B . taxicolor Hodgson and diagnosis its sickness. The data about composition of scrum in B. taxicolor Hodgson of China was not provided This paper has reported a primary analysis result of composition of the blood in six specimens of B. t. tibetana. These parameters have included the composition content and the rate values of branche amino acid with aromatic amino acid, ALP, GOT, GPT, LDH, CPK, rCT, HBO etc. 7 events of scrum enzyme; glucose, urea nitrogen, crcatininc, triglycerics, cholesterol, uric acid, total protein, albumin etc. in scrum biochcmical contcnts; phosphorus, calcium, natrium and chlorides of serum elcctrolytes; the total number of leukocyte, classification of leukocyte, Hb hemoglobin, CO2 binding power etc. 6 events of conventional analysis of blood in B. taxicolor Hodgson when it was six years old. For that samping is quite difficult, the quantity of measurement was less, only provid some reference datas for this science field.
Method of task assignment for optimization of automotive system reliability
一种面向汽车系统可靠性优化的任务分配方法*

LI Rui,LEI Qun-mi,<br>,雷群泌
计算机应用研究 , 2011,
Abstract: Tasks allocation to electronic control unit is one of the most important works in the stage of designing automotive electronics software.The problem of finding an optimal task allocation with maximum system reliability has been shown to be NP-hard.This paper presented an improved particle swarm optimization algorithm for finding the near-optimal task allocation.By embedding a new mutation operator in the basic particle swarm optimization algorithm,improved the convergence speed of the algorithm and obtained...
PSO-AdaBoost training algorithm based on EREF
基于EREF的PSO-AdaBoost训练算法*

LI Rui,ZHANG Jiu-rui,MAO Li,<br>,张九,毛莉
计算机应用研究 , 2012,
Abstract: Focusing on the disadvantage of the AdaBoost algorithm based on PSO, this paper mainly analyzed the issue that the traditional target function could not adapt to the problem of weak classifiers selection when they had the same minimum error rate and a new method was advanced to avoid the problem. The new method used the absolute difference between the threshold and feature to measure the extent of misclassification and combined with the relative entropy principle as the fitness function. In this way, the new fitness function could select the best weak classifiers more accuracy. Experimental results indicate that the method can achieve both better performance and less generalization error.
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