DSP与数字图像处理联合实验改革与思考

通过利用自主开发的DSP与图像处理联合实验系统对DSP实验课的开课方式和实验内容进行两方面的改革，即在授课方式上打破以往在固定时间在老师指导下做简单实验的模式，采用以学期为单位，学生可在任何工作时间进入实验室研究自己的实验课题（可以是教师指定题目，也可自主选题），学期末进行实验成果的验收和答辩；在实验内容方面将DSP与数字图像处理相结合，使学生同时对DSP和数字图像处理有深入的理解和实验体会。     

谈初中物理实验复习的教学设计

在初中物理教学中,如何进行实验教学都有成功的做法。但如何进行实验复习,以及通过实验复习达到扩展知识、强化技能、解决疑难的目的,还需要我们进行探讨。本文从巩固实验技能方法、探讨相关现象、解决有关疑难问题为主三个方面对实验复习进行实践探讨,以期达到抛砖引玉的目的。     

为学生创造良好的实验环境

学生能较好地完成实验,必须要具备实验所需的各种条件。本文就如何为学生创造良好的实验环境,提高学生实验的综合素质,提出一些方法和建议。     

实验课的改革与探讨

本文对实验课的内涵进行了研究，提出应从系统的角度对实验课进行探讨，借以引起人们对实验课足够的认识和重视．     

微生物学实验教学与提高学生实验技能的改革

微生物学既是一门基础理论学科,又是一门实验性和应用性很强的学科,它具有一套独特的实验技术和方法,已被广泛应用于各相关学科的科学研究及生产实践过程中。我们从课程实验和综合实验两方面不断改进微生物学实验教学,训练学生基本实验操作技能,探索培养学生综合创新能力的方法和途径。     

中专物理实验教学能力的培养

针对中等专业物理实验的传统教育观念的影响,尤其是动手能力方面,与发达国家相比存在着明显的差距。本文重点培养学生实验能力,让学生动手做实验,能够使学生对物理事实获得具体的、明确的认识,这是理解物理学概念和规律的必要的基础。提高学生的实验能力,就业前景广阔。     

我从“演戏”到“看戏”

以前我在教九年级科学《常见的盐》这一节课内容后,学生总觉得这部分知识听起来很简单．但做题时却不知如何人手．我曾经尝试过多种教学方法,效果都不是很明显．为此我认真分析教材安排,发现这一章设计了许多实验。但大都是验证性实验,实验内容以演示实验和学生实验为主,演示实验主要以授课教师在台上演示为主,学生主要参与观察实验现象和结果。学生实验是实验员按教材的要求准备好实验仪器和药品,学生按实验用品和教材上的实验步骤进行”照方抓药”式的实验操作,基本上届于一种纯技能的训练,只是论证某个规律,     

综合化学实验教学改革

在现有的条件下,改革化学实验的结构形式和内容,提高实验室的管理和实验水平,创办一流的实验室以适应新形势的需要.     

生物化学创新型实验教学模式的研究

生物化学是生物与制药工程类专业学生必修的课程之一,为了能够更好的调动学生的学习积极性和培养学生的综合实验能力,南京工业大学自创了一套以＂开放、滚动、自主＂为主轴的实验教学方法,为高校生物化学实验的教学改革提供了新的思路。     

如何降低有机化学实验成本的探索

从实验内容、实验药品和学生实验产品三个方面探索如何降低有机化学实验的实验成本。     

An improved R-tree based on childnode''s probability

R-Tree is a good structure for spatial searching. But in this indexing structure,either the sequence of nodes in the same level or sequence of traveling these nodes when queries are made is random. Since the possibility that the object appears in different MBR which have the same parents node is different, if we make the subnode who has the most possibility be traveled first, the time cost will be decreased in most of the cases. In some case, the possibility of a point belong to a rectangle will shows direct proportion with the size of the rectangle. But this conclusion is based on an assumption that the objects are symmetrically distributing in the area and this assumption is not always coming into existence. Now we found a more direct parameter to scale the possibility and made a little change on the structure of R-tree, to increase the possibility of founding the satisfying answer in the front sub trees. We names this structure probability based arranged R-tree (PBAR-tree).     

三昧:佛教审美感悟的主要形式

佛教对中国古代学创作和审美产生了巨大影响，这已经是不争的问题。而在感应外物的心理知觉上与学审美究竟有何内在联系及区别，则又大多语焉不详，或详而无纲、油水分离。笔从佛教教义中拈出“三昧”两个字，深入探寻佛教审美感悟的主要方式，分析它与庄子“心斋”及俗人梦幻的同异，这对中国古代学审美理论的梳理和建构都有重要意义。     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

建构中国古代文学审美理论:动因和方法

从提高“”的审美能力、“史”的认知能力、“论”的理解能力等方面阐述了建构中国古代学审美理论体系的动因，从注重古人创作和审美的实际、用今人的观点来透视、把定向观照和多向思维结合起来等方面探讨了建构这种理论的方法。目的在于使中国古代学理论的研究既有传统性又有现代性，既有本土性又有世界性。     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

我国能源供需波动变化研究

本文从我国近20年来能源产业产品供需量和消费结构的状况着手,研究了能源供需量波动和消费结构变化的特性,并从产业政策、产业结构和经济增长方式演变的角度重点分析了供需量波动和消费结构变化的原因和特点,在此基础上,分析了我国近年能源短缺的原因和解决办法。     

不同碳氮源对嗜热菌BF80生长和降解苯酚的影响

探测了蛋白胨,酵母粉,葡萄糖对BF80菌生长和降解苯酚的影响．结果表明：与对照相比,0．05％-1％的蛋白胨能促进BF80的生长却抑制该菌的苯酚降解,这种作用随浓度的增加而增大;酵母粉对BF80生长和苯酚降解均有促进作用,在最适浓度0．1％的情况下其生长量OD600达到1．578,苯酚降解率上升到99．21％;不同浓度的葡萄糖对BF80的生长和苯酚降解几乎都没有影响．     

石油勘探开发建设项目评价系统探讨

石油勘探开发建设项目评价是石油勘探开发建设项目管理的重要内容之一,也是提高项目决策科学性的一个重要环节。首先分析了石油勘探开发建设项目评价的理论和方法,然后从项目前评价、项目中评价、项目后评价、技改项目评价四部分讨论了项目评价的基本内容,并在此基础上构建出了新的项目评价系统。指出:新的项目评价系统与传统的评价系统[1]的最大区别在于增加了项目中评价内容,并且对其它大、中型建设项目也是适用的。