线性椭圆变分不等式的扰动：祝贺李森林教授八十大寿

本文研究Hilbert空间中线性椭圆变分不等式的扰动,得到了扰动问题的解收敛于原问题的解的一个较一般的充分条件.     

Investigations concerning the sustainability of remediation by land deposition of tributyltin contaminated harbour sediments

Sediments often contain high concentrations of tributyltin, which is used as a biocide in antifouling paints. The aim of our project was to assess land deposition as an alternative in dealing with TBT-contaminated harbour sediments. Therefore, we followed the biological degradation of TBT under aerobic and anaerobic conditions at different temperatures using defined laboratory experiments and performing field measurements. With the data obtained, a risk assessment is performed. The biological degradation of TBT is faster under aerobic conditions and with increasing temperature. The half-lives found show the dependency of the degradation rates on the temperature between 5 to 55°C The degradation rate determined for water under the same conditions (just biological degradation, without photolysis) is almost 4 times higher than in the sediment. The field studies gave a degradation rate of around 10% per year in untreated sediment and 30% per year in restacked sediments. We did not observe any interference of released TBT with ground water or surrounding areas. The TBT uptake in plants was low. Based on our results, a multidimensional risk evaluation was done, concerning the TBT and its degradation products dibutyl tin (DBT) and rnonobutyl tin (MBT) released from the deposition area. The land deposition appears to be a sustainable solution for dealing with TBT-contaminated harbour sediments. Compared to other disposals, it is economically one of the cheapest and, from an ecological point of view, it is acceptable.     

Territorial Inequality of Net Income per Peasant in Shandong Province and Its Mechanism

Income inequality among farmers living in different regions was an important form of territorial inequalities. Studying the territorial inequality of the net income per peasant was an emphasis of this paper, and Shandong Province was pointed as the case study region. By the help of logistic regression, it could be found that the special distribution of the net income per peasant in Shandong Province was affected by three factors： distance to No.308 National Highway, distance to the coastline in the east of Shandong Province, and urbanization rates. Based on the decomposition of Gini index, the net income per peasant was divided into four parts, and it was found that the income from family business and salary were the two major sources of income. As to the mechanism for income inequality, it was proved that urbanization was still the key factor. In order to reduce income inequality, the local governments should promote urbanization through improving road networks, such as building highways, which could connect rural areas with the major nodes such as big cities and the port cities in the east.     

例外簇和变分不等式解的存在性

为研究变分不等式解的存在性问题，本提出了一个新的例外簇概念，并且证明了变分不等式或有解，或对任意x，有关于x的一个例外簇．借助于例外簇的这条性质，本通过证明了变分不等式没有关于x的一个例外簇，来说明变分不等式有解，从而得出一个变分不等式解的存在性定理。     

一类VIP异步逐次超松驰迭代的收敛性理论

本文针对一类具有矩形约束区域的非一性变分不等式问题，建立用异步并行逐次超松驰迭代数值求解的收敛性理论。     

云南哈巴雪山植物群落和植物多样性海拔梯度分布格局

采用数量化群落分类法分析哈巴雪山植物群落类型和植物物种多样性沿海拔梯度的分布格局。结果表明:采用等级聚类和非度量多维标度排序方法可将云南哈巴雪山植物群落沿海拔梯度划分为6个植被亚型;哈巴雪山的植物多样性沿海拔的分布格局受中间地带效应影响较为明显,而与Rapoport海拔法则不甚相符;物种丰富度总体上符合单峰格局,但在中海拔地段物种丰富度谷、峰值连续出现;α多样性指数中的Shannon-Wiener指数曲线符合单峰格局,β多样性指数基本上也符合单峰分布,但中海拔地段起伏较大;哈巴雪山物种丰富度以及多样性指数沿海拔梯度呈现出较为复杂的规律,反映出山地小环境多样性特征,具体表现为群落类型间沿海拔梯度的交错分布和相互替代现象。     

Correlations between camptothecin and related metabolites in Camptotheca acuminata reveal similar biosynthetic principles and in planta synergistic effects

Camptothecin (CPT), 9-methoxycamptothecin (9-MeO-CPT), and 10-hydroxycamptothecin (10-OH-CPT) are potent antineoplastic metabolites. We analyzed these metabolites in Camptotheca acuminata sampled from Germany and China, using LC-MS/MS and LC-ESI-HRMS/MS, coupled with chemometrics. Multivariate analysis revealed that fresh stems of C. acuminata from China had the highest comprehensive metabolite load. Significant positive correlations of CPT with 9-MeO-CPT and 10-OH-CPT were observed by Kruskal's multidimensional scaling and principal component analysis. Linear discriminant analysis and hierarchical agglomerative cluster analysis revealed that C. acuminata from China was separated from others. These positive correlations indicate that these metabolites are biosynthesized similarly and operate synergistically in planta.     

论非艺术类高校文化艺术社团多维度建设

目前,全国有很多非艺术类高校,因在专业支撑、师资配备、生源基础、招生政策扶持等方面的"先天不足",艺术教育处于无场地、无经费、无编制的"三无"状态。对于非艺术类高校来说,文化艺术社团建设是加强艺术教育的重要手段。非艺术类高校文化艺术社团多维度建设的意义和价值在于:文化艺术社团通过活动辐射、熏陶、造就学校文化艺术氛围,不断提升学生的综合能力,对校园文化的形成具有相互的辐射和先导作用,引领非艺术类高校先进文化艺术发展。非艺术类高校文化艺术社团多维度建设可以通过多种渠道保证大学生文化艺术社团扶持力度,提高艺术教育水平重在指导教师来源多元化,建立大学生参加艺术社团的激励措施等三大举措加以推进。更重要的是,非艺术类高校文化艺术社团多维度建设中长效机制的建设:专业化的外部管理、规范化的内部管理、任务活动多样化的管理、网络化的宣传鼓励。     

一类奇异线性反应扩散方程组的解

运用有界线性算子半群,把一类奇异线性反应扩散方程组用积分方程组表示出来,运用Gronwall不等式、迭代法、不等式的放缩法研究这类奇异线性反应扩散方程组,得到其解.     

小麦品种区域试验四种分析方法的比较研究

为探求更加方便、快捷、有效的小麦品种区域试验分析方法,以2008-2009年度河南省小麦品种区域试验结果为资料,对作物品种区域试验中方差分析、模糊综合评判方法、灰色多维综合评估方法和同异联系势分析方法进行了比较研究。结果表明,四种分析方法各有千秋,方差分析理论与方法较为成熟,但只能分析单一性状,综合功能差;其余三种分析方法则综合功能强,对品种评价更加客观、全面。其中,灰色多维综合评估方法和同异分析方法区分度较好,更利于辨别品种优劣,尤其是同异分析方法计算简单,方便快捷,提供的试验信息更多,能够对多个性状进行综合差异显著性检验,是开展育种工作的良好工具和手段。