学校健美操动作创编能力培养探讨

在对学校健美操的动作要素和相关理论进行阐述的基础上,提出学校健美操创编单个动作,组合动作和成套动作的思路及教法.     

健美操成套动作表象训练实施的过程与特征

运用运动心理学原理,在阐述了健美操表象训练的理论依据和特征基础上,通过对比分析,对健美操成套动作教学中,采用表象训练的教学方法,提出了具体的教学程序和步骤.实验表明:在健美操成套动作教学中运用表象训练法,可以起到消除学生紧张情绪和提高健美操成套动作学习效果的作用.     

对第九届世界健美操锦标赛女子单人操前八名选手难度动作的分析

难度动作是竞技健美操实力的重要体现,是反映运动技术水平的主要标志,越来越影响竞技健美操成套动作的成绩,因此对难度动作的研究显得非常必要.通过文献资料法、录像观察法,结合,对第九届世界健美操锦标赛女子单人操前八名选手难度动作数量、组别、分值、空间的运用和完成情况等方面进行统计分析.同时经对比,得出了中国女子单人操在这方面的优势与不足.     

论健身健美操的动作原则

采用文献法、归纳法和演绎法 ,从健身健美操的基本动作、形式、动力、目的出发 ,研究健身健美操运动的本质 .结论认为 :健身健美的动作原则是以自然方向用力为法则 ,适合健身健美操的特征形式的 ,安全、有效地实现健美的标准动作     

"探究教学法"在高校健美操教学中的应用研究

探究教学法是教师引导学生进行查询、讨论、探索求知的一种教学方法.尝试把探究教学法运用于高校健美操教学,旨在为高校体育教学改革提供实践经验.实验结果表明:①应用探究教学法进行健美操教学的实验组学生在健美操动作完成的准确性、熟练性、表现力及动作与音乐的合拍等方面的得分,与进行传统健美操教学的对照组学生相比,均存在显著差异;②在探究教学过程中,学生的主体性得到充分发挥,学生的创造思维、发现问题、解决问题的能力得到锻炼,学生完成健美操动作的质量得到提高.     

谈健美操发展趋势及其教学改革

健美操是体育运动中的一种新兴运动,是健与美的结合运动,它主要可以分为竞技健美操、表演类健美操、健身健美操等,由于健美操具有综合性、动作协调性等特点,使它备受人们喜爱.对健美操的特点、发展趋势和在教学领域中的改革进行分析.     

健身俱乐部健美操快乐教学的研究

对南京市健身俱乐部健美操学员就健美操快乐教学问题进行了调查研究.分析了健美操快乐教学的基本特征,根据学员的需要探讨了健美操快乐教学的设计问题.研究认为,健美操快乐教学的特征有:动作节奏,音乐节奏,音乐和动作结合,同伴陪同练习,集体练习等方面;健美操快乐教学的设计主要有:教学内容上做到多样化,音乐素材要有针对性,教学内容强度适中等.     

竞技健美操二级三人操规定动作训练方法的研究

为研究竞技健美操二级三人操规定动作训练方法,为教练员能科学的,合理的安排重点和难点,从而达到更佳的训练效果.通过文献资料法、问卷调查法、观察法和数理统计法对北京体育大学教育学院03级健美操专项班竞技健美操二级三人操规定动作的训练情况进行调查,了解并掌握北京体育大学教育学院03级专项班学生当前的训练情况,并对二级三人操等级规定动作的难度训练、操化动作训练、托举动作训练及体能训练方法进行研究.竞技健美操二级三人操规定动作的训练分别从难度动作训练、操化动作训练、托举动作训练以及体能训练四个方面进行了研究,并提出相应的训练方法.     

从规则的变化看我国竞技健美操的技术发展趋势及对策

竞技健美操作为一项国际竞技体育项目,发展至今已有20多年的历史,加入国际体操联合会后赛事频繁,同时竞赛规则的制定和修改使运动技术得到了很大发展.该文采用文献资料法、比较分析法,对1994年版至2005年版的《竞技健美操竞赛规则》规则进行比较,分析规则的变化特点,探讨在新规则的指导下我国竞技健美操的技术发展趋势及对策.结果表明,今后竞技健美操的技术发展趋势将是突出成套动作编排的艺术性和动作的创新,难度动作提倡多元化,难度水平和动作质量将不断提高.     

2009版国际竞技健美操规则的变化走向及竞技展望

采用文献资料法、比较法、统计分析法等研究方法对2005版和2009版的国际健美操竞赛规则进行比较分析.新版本规则艺术分值重点突出动作编排和操化内容评分因素;难度动作向多样化、复杂化、新颖化方向发展;完成裁判的评分标准更加客观、精简、合理.针对这些特点,探讨未来竞技健美操动作技术的发展方向并提出训练对策,为竞技健美操训练...     

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.     

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     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with