高校馆阅览室期刊分类的作用新议

结合高校的发展，从实现有序管理方便读者利用，增强学生获取知识的能力，为迁入新区的院系师生厦时提供文献保障．建立分类检索系统等方面探讨了分类的作用。     

Information extraction and dynamic evaluation of soil salinization with a remote sensing method in a typical county on the Huang-Huai-Hai Plain of China

Monitoring the dynamics of soil salinization is of great importance for agricultural production. This study selected Yucheng County, a typical county on the Huang-Huai-Hai Plain (HHHP) of China, as the study area and evaluated the spatial and temporal variation of soil salinization. Three methods, consisting of principal component analysis (PCA) transformation, tasseled cap (TC) transformation, and optimal band combination (OBC), were used to extract information from an early Landsat multispectral scanner (MSS) image from 1984, and their advantages were compared. In addition, OBC was used on a thematic mapper (TM) image from 2009. An iteratively self-organizing data analysis algorithm was used together with prior knowledge of likely classifications to interpret the MSS and TM images for data classification. Finally, a transfer matrix method was used to assess the spatial and temporal variability of soil salinization and analyze the driving factors of soil salinization. Compared to PCA transformation and OBC, TC transformation was a more effective method for extracting soil salinization information from the MSS sensor. The results indicate that a soil area of approximately 298 km² was affected by salinity in 1984 in Yucheng County, of which 5.40%, 11.96%, and 12.75% were classified as being subject to slight, moderate, and severe salinization, respectively. In 2009, the saline area was reduced to only 146 km², of which 10.70% and 3.75% were characterized by slight to moderate salinization and no severe salinization, respectively. The saline land decreased at an average rate of 6 km² per year. This decrease was probably a result of lower groundwater depth, increased organic fertilizer or crop straw in soil, changed land use type, and increased vegetation coverage.     

胎盘食用的研究进展

近年来食用胎盘的做法广泛流行于国内外,该研究综述了国际科学界对动物食胎盘行为的原因和生物学意义的研究进展,总结了人类食胎盘在补充营养、缓解产后抑郁症、提高泌乳量等疗效上的争议以及对食用胎盘危害的推测,并对胎盘食用的研究方向进行了展望。     

“中国近现代史纲要”含义辨析

“中国近现代史纲要”是中宣部、教育部“05”方案中确定的我国普通高校思想政治理论课中的四门必修课之一.从字面意义来理解“中国近现代史纲要”,我们要弄清两个概念,一是什么是“中国近现代史”,二是什么是“纲要”,弄清了这两个问题,我们就可以给中国近现代史纲要下一个完整的定义.     

论我国肉羊生产的前景及意义

虽然我们的羊肉在质量等到方面与国外有一定的差距,但也有我们自身的优势。生产成本、价格、劳动力资源等从地缘、竞争对手、进口国、出口价格等考虑,均有竞争优势,发展前景很好。     

英语双及物结构的构式语法观

构式语法是以认知语言学为理论背景的语言研究方法。本文以Goldberg所倡导的构式语法理论为指导，对双及物结构予以剖析，旨在探究双及物结构这一特定构式的句法和语义特征，同时构建出双及物结构的构式表征模式，以揭示该构式的本质。     

试论《三国志》裴松之注“凿空语怪”的文学意义

《三国志》裴松之注因为引用了几则具有志怪性质的材料，而被历来史家批评其“凿空语怪”、“坐长烦芜”。事实上，裴松之在引援这些注文时并非是不加选汰而盲目采用的。裴松之用审慎的态度和隐蔽的手段，把自己对历史人物及事实的评价暗蕴于注解之中。而且，其保存小说材料和用小说注史之功，是不可泯没的。《三国志》裴松之注将历史与小说相结合，则对当下的玄幻小说创作具有一定的启迪意义。     

民事法律行为本质论

民事法律行为是指民事主体旨在发生私法上效果的以意思表示为基本要素的行为。本文对我国民法理论中长期坚持的民事法律行为本质合法说提出质疑,推出设权表意性才是民事法律行为的核心要素和本质特征,并认为在民法典总则中有设立民事法律行为制度的必要性。     

营造林工程中推行监理制势在必行

在营造林工程中实行监理制，对于提高工程建设质量，确保工期和投资效益，完善林业管理机制，规范工程建设行为等具有重要意义。根据林业工程建设特点，提出了在营造林工程中推行监理制约具体措施和建议。     

MapX在空间数据绑定与林业专题图制作中的应用探讨

从空间地图数据与属性数据的关联、专题图的生成各方法，就MapX在林业地理信息系统开发中空间数据绑定与专题图制作中的技术等作了简要探讨。