关于提高分析化学教学质量的心得与体会

本文针对分析化学学科特点,结合分析化学教学实践,阐述了提高分析化学教学质量的心得与体会。     

浅谈分析化学设计性实验的选题

分析化学的设计性实验的目的是培养学生综合运用所学分析化学知识,解决模拟生产实际问题,培养学生在分析化学方面的综合能力和技能。设计性实验课题的科学合理选择,是达到分析化学设计性实验目的的关键。结合我们在分析化学设计性实验教学方面的实践,就分析化学设计性实验的选题提出了一些见解。     

分析化学的绿色化

分析化学的绿色化是把绿色化学的原理使用在新的分析方法和技术的设计方面,旨在减轻分析化学对环境的影响.无污染或少污染的绿色分析化学技术将是今后分析化学的一个发展方向.文中介绍了绿色化学的概念、原理、研究现状,分析化学与环境的关系,绿色分析化学的特点及其方法的发展.     

药学专业分析化学实验教学改革与实践

分析化学是药学类专业一门重要的专业基础课,是以实验为基础的一门课程。分析化学实验对于培养学生的动手能力、创新能力和分析问题解决问题能力起着重要的作用。文中分析了该校药学类专业分析化学实验教学现状和存在的问题,结合几年分析化学实验教学实践经验,提出了分析化学实验教学改革的建议。     

分析化学实验教学改革的设想

针对分析化学实验教学现状,提出了分析化学实验教学改革计划及应当建立的保障体系,建议将分析化学实验课程分为规范化操作训练;验证分析化学理论,树立“量”的概念,培养观察思维能力;综合设计实验三个阶段。旨在使分析化学实验教学能真正实现知识和技能的传授与能力和素质培养的相互促进和统一。     

师专分析化学课程改革的设想

本文从现代分析化学的发展出发，在对师专分析化学课程的现状进行剖析的基础上，指出了分析化学课程改革的必要性，并结合对欧美分析化学课程改革措施的讨论，提出了师专分析化学课程改革的具体设想。     

浅议分析化学前沿在教学中的运用

分析化学前沿教学是分析化学课程教学的延续和拓展,是培养大学生创新能力的重要途径。在课堂教学中适当融入分析化学前沿不仅能拓宽大学生的知识面,又能激发大学生的学习兴趣和创新意识,提高大学生的科研开发能力与创新能力。本文针对目前分析化学的教学现状,提出了如何将分析化学中的前沿问题运用到课堂教学。     

分析化学实验课改革探索

分析化学实验教学是分析化学教学过程中十分重要的教学环节,主要培养学生的动手能力和实践技能。但是传统的分析化学实验教学已经满足不了现代应用型人才培养的需要,所以,我们对分析化学实验课从实验体系到实验内容、方法等进行了一系列的改革,并取得了值得借鉴的一些模式,通过分析化学实验课的改革探索,使学生得到了很好的技能训练,进一步挖掘了学生的创造力,提高了学生的综合素质。     

深化分析化学实验教学改革 培养创新型人才

根据新世纪分析化学实验教学任务及培养目标,分析了分析化学实验教学现状,并从"重基础,求创新"、灵活授课、绿色实验、成绩考核等方面,提出了分析化学实验的教改措施.     

分析化学实验教学改革体会

分析化学实验教学给予学生的不仅是分析化学的理论知识,更重要的是使学生能正确地掌握分析化学实验的基本技能,培养严谨的科学态度、实事求是的科学作风。本文主要从课程内容、教学手段、能力培养及考试改革等方面对分析化学实验教学改革进行了探讨。     

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.     

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.     

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。     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

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

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