高职物理课程特色教学的探索

高职物理课程是建工、机械、电子等专业必设的一门基础课程。由于高职教育的特殊性和高职学生的特点,高职物理课程教学必须具有鲜明的特色。在教学理念、教学内容、教学手段、教学模式、作业形式等方面要有创新之举,使高职物理课程彰显直观性、专业性、技能性、创造性和趣味性,提高高职物理课程的教学效果。     

数学系普通物理实验改革初探

普通物理学是高等师范院校数学系的基础课程之一.通过本门课程的教学,应使学生获得比较系统的物理基础知识,为学习数学理论提供必要的物理模型,并为应用数学方法解决实际问题打下初步基础.由于物理学是一门实验科学,因此在进行普通物理教学的同时,还应适当的按排一些分组实验,以使学生加深对物理概念的理解,并在物理实验技能方面得到初步训练.     

高职院校航海类专业开设职业实用性体育课程探析

从高职院校以"职业性、岗位性、实践性和实用性"为培养目标出发,阐述高职院校开展职业实用性体育课程教育的重要性,探析高职院校航海类专业开设职业实用性体育课程,提出了高职院校职业实用性体育课程设置的一些初步设想和建议.     

基于创新教育要求的工科专业基础课教学改革

高校工科专业的基础课教学是创新教育的基础性平台,以普通物理基础课程为例,论述创新教衣与工科专业基础课教学的关系,通过对当前工科专业普通物理基础课教学现状分析,提出基于创新教育要求的高校工科专业基础课教学改革措施.     

航海类高职院基础英语与专业英语教学衔接的问题与对策

文章主要探讨了航海类高职院基础英语与专业英语教学衔接的问题,如课程设置问题、教材问题和师资问题,并提出了一些应对策略,如优化课程设置,创新教材和整合师资。     

计算模拟科研方法引入普通物理实验教学的探讨

普通物理实验是大学理工科专业的基础课程,也是学生进行系统的科学实验技能和科学研究培训的开端。结合普通物理实验自身的特点,将前沿科学研究所用到的研究思想和方法引入到普通物理实验课程教学是实验课程改革发展的一个重要方向。计算模拟的科研方法已经渗透到自然科学和工程技术研究的各个领域,发挥着重要的作用。将计算模拟的科研方法引入到普通物理实验教学对于培养学生创新精神、创造能力和提高学生科研素养有着十分重要的意义。     

基础物理实验课程成绩评定方式的改革与实践

分析了目前国内高校物理实验课程成绩评定的主要方式及存在的弊端,介绍了西南大学物理科学与技术学院基础物理实验课程改革后的成绩评定方式.并应用Excel对物理学专业2004和2005级学生的普通物理实验成绩进行了统计分析,分析表明2005级的成绩呈正态分布,两个年级的成绩存在显著性差异.实践初步表明采用本文提出的方法,对提高基础物理实验教学效果起了重要作用.     

论航海学课程体系和教改方案

分析目前全国各大航海院校“航海学”课程教学现状，普遍存在课程安排不合理，淡化学生能力培养，课时浪费严重等现象。为解决高职航海类毕业生实践能力不强的问题，提出了“航海学”课程体系和课程内容的改革方案。     

普通物理实验教学改革的探讨

普通物理实验是大学生的一门重要的实验课程,在新形势下,如何进行普通物理实验教学改革已势在必行,各个高校已着手从事普通物理实验教学的改革.作者就多年来的教学经验发表了自己的意见.     

基础物理在高等林业院校的地位和作用

为加强基础物理教学在普通高等林业院校的地位,从物理学与林业高新技术发展的关系,探讨了基础物理在高等林业院校的地位和作用.从素质教育角度讨论大学物理教学的2种功能,基础知识的传授,及科学文化的素质教育.表明基础物理教学并非只是传统基础知识的介绍,而更是一门综合性很强的课程.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

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.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

A computer generator for randomly layered structures

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

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

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。     

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.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to