川西平原岷江流域冲积性水稻土中Be和V的背景值研究

本文在文献［１］和［２］的基础上，首次对川西平原岷江流域冲积性水稻土中Ｂｅ和Ｖ的背景值进行了研究，并对Ｂｅ和Ｖ在不同土层的分布情况亦进行了一定的研究     

土壤中氟背景值表示方法的研究

本文应用数理统计原理对某区域土壤中氟背景值的可靠性和表示方法进行了研究．     

一种有效的运动目标辨别方法

提出了一种利用图像序列中两帧相邻图像从分割所得二值图像的合个候选目标块中确定真实目标的有效算法，背景配准后，可获得背景噪声分布直方图，同时获得具有对应关系的候选目标块间的噪声分布直方图，通过比较它们与背景噪声分布直方图之间的差异性，即可准确地辨别出真实目标。通过对实际图像序列进行实验，证实了本方法的有效性。     

肖邦夜曲的永恒性

肖邦创造了永恒的夜曲。当肖邦所创作的音符由钢琴中流泻出来,他究竟属于“浪漫乐派”或是“国民乐派”的争辩已毫无意义。因为他是波兰的肖邦,也是世界的肖邦;他是浪漫时代的肖邦,也是我们心中永恒的肖邦。     

Some evidence of drying trend over northern China from 1951 to 2004

The surface wetness index, Palmer drought sererity index and the retrieval of soil moisture over China were calculated using monthly precipitation and monthly mean surface air temperature. Based on the contrast analysis of the variation of the above three indices and precipitation, the dry/wet spatio-temporal pattern of northern China in the last 54 years was revealed, and the evidence of drying trend over northern China was analyzed, especially. The results show the following four facts: (1) The drying trend is the main characteristic of the eastern part of Northwest China and the central part of North China since the 1980s and it was enhanced in the last 15 years mainly due to the precipitation decrease and the temperature increase; (2) During the last 54 years, there was only one dry/wet shift at the interdecadal scale occurring in the eastern part of Northwest China and the central part of North China in the late 1970s, which was related to 1977/1978 global abrupt change, whereas there were three shifts in Northeast China, one was in the mid 1990s and the other two were in 1965 and 1983, respectively; (3) Unlike the variation trend of other subregions of northern China, the western part of Northwest China is currently located in a relatively wetting period, which is weak-ened due to the temperature increase; (4) The extreme drought frequency is obviously increasing in the eastern part of Northwest China, the central part of North China and Northeast China since the 1980s, which is closely related to the precipitation decrease and temperature increase in these subregions.     

为了一个安全的梦——夏玉宜发明安全自动煮饭机的故事

提前半小时给家里打个电话或发个信息，家里的自动煮饭机接到信号之后就开始运转，下班回家，香喷喷的米饭就会呈现在你面前，这真是一个梦。     

后现代主义小说的"平面化"审美特征解析

“平面化”主要指:人物平面化,情节、结构平面化,背景平面化,主题平面化。“平面化”是后现代主义文学的主要审美特征之一,这一审美特征突出地表现在后现代主义小说创作当中。     

《阿Q正传》的艺术缺陷及原因

《阿Q正传》是一部享有国际声誉的作品，但从小说的艺术技巧方面对其进行审视，会发现它存在许多缺陷，具体表现在：第一，古文舜口生僻词的大量使用；第二，主人公阿Q没有统一的性格；第三，《阿Q正传》呈现的是一个灰冷绝望的世界，里面没有一个好人，也没有一个好的动机。造成这些缺陷的原因在于。它是鲁迅应邀创作的幽默小说，且在创作时，鲁迅正处于较差的精神状态中。     

国企经营者股权激励机制的制度背景分析

从国有企业经营者股权激励机制改革的制度背景方面入手，分析和阐述了近年来我国在股权激励方面的政策与措施变化，并结合当前形势的发展，论述了健全和完善国企经营者激励机制的必要性。     

知识背景下基于核心竞争力的城市发展研究

传统意义上的城市经营,一般指从政府角度出发,运用市场经济手段运作城市资源,完善城市功能,提高城市素质,确定城市竞争优势。在人类社会进入知识时代的今天,竞争优势的保持便意味着城市必须设法建立以知识为基础的核心竞争力。本文通过分析传统的竞争优势理论——产业竞争优势理论、国家竞争优势理论和企业核心竞争力理论入手,提出了知识背景下,拥有核心竞争力的我国城市的发展战略,并从四个影响方面——教育体系,知识学习的社会网络,R&D和科技创新能力、知识跨区域的流动逐一分析。