关于篮球个人防守部分技术与应用

防守是我国蓝球队的一个薄弱环节。攻、守是蓝球比赛的基本规律,不能忽视任何一个方面。较高水平的强队,一般说来,必须是攻守兼备,能攻善守,重视防守训练,有利于促进攻、守提高强度,加强对抗,即提高防守强能力又利于促进攻质量,个人防守技术是战术的基础,提高个人防守能力,是解决防守薄弱的重要课题,本文对个人防守技术与应用谈谈个人的几点认识。     

刍议篮球教学比赛中培养个人防守意识与防守技巧

个人防守意识与防守技巧是个人战术行动的基础，也是防守队员个人独立性的具体表现，在全队防守体系中具有关键性的作用。在篮球教学中，通过教学比赛培养个人防守意识和防守技巧有助于提高整体的比赛能力。     

浙江绿城队2001年甲B联赛技战术分析

通过观察统计、文献资料、专家访谈等方法，对浙江绿城队2001甲B21场比赛的进攻与防守技战术特点进行研究。主要结论：442阵型是绿城队的基本阵型；全队对外援的依赖性较强；边路进攻是主要的进攻手段；客场比赛缺乏战胜对手的方法和手段；队员个人的防守能力和全队的协防能力与国内优秀球队存在一定差距。建议：丰富技战术内容与方法；提高国内球员的攻击力和球队客场比赛的能力；加强罚球区和罚球弧一带的防守力量。     

中国大学生足球总决赛主要防守技战术运用特征分析

通过观察2000－2001年飞利浦中国大学生足球总决定8支参赛队的全部20场比赛，将比赛中出现的个人防守形式划分为断球和抢球两类统计指标，通过成功与失败数据统计，分析总决赛中防守技战术的运用特征和组织形式。结果表明：个人防守技战术的实施是根据比赛阵形的变化，多数是在整体队形的保护之下完成的，表现出很强的整体性特征。断球成为最主要的个人防守形式，集体性围抢是在防守队形的保护层次形成后，形成局部人数上的优势，将球抢断下来。通过防守行为的整体性和主动性，加强防守效果，反映出防守的主导思想和实施战术的目的。     

对28届奥运会中国男篮前锋队员防守能力的分析与研究

运用比赛录像观察法、统计法和文献资料法,对中国男篮前锋队员在5场小组比赛中的防守技术及能力进行分析研究.结果表明中国前锋队员抢断、盖帽和防守漏洞等数据与赛队前锋队员有明显的差距;抢防守篮板球存在技术和方法上的问题;防守犯规主要集中在防突破、防投篮上,而防持球、防无球队员的犯规次数明显要比赛队少.     

第五届城运会男子篮球运动员防守投篮情况的调查研究

通过对城运会男子篮球比赛中防守投篮情况的总体分析,以及与CBA、NBA的比较研究,发现我国青年男子篮球运动员在防守投篮方面以及投篮方面的一些问题,并从中找出这些问题的原因,为提高我国青年男篮运动员在防守投篮和投篮能力方面提供参考.     

篮球比赛中的防守假动作

随着篮球运动防守战术的发展,要求运动员在比赛中个人防守更具实效性和针对性。防守中假动作的运用丰富了个人防守技术动作,提高了个人防守能力,从而赢得了比赛的主动。     

浅论篮球攻击性防守技术

本文针对我国蓝球比赛中的薄弱环节－防守，进行探究性的分析，旨在弄清何为篮球防守问题的症结，如何进行防守，提出了改进和训练防守的几点建议，以供同行参考。     

青少年篮球运动员应加强对无球队员的防守训练

对无球队员防守水平差是青少年蓝球运动员主要薄弱环节，青少年篮球运动员要迅速提高球技术水平，应加强对无球队员的防守训练，目前青少年篮球运动员在比赛中防守无球队员水平差重要因素有两个方面：一是防守意识差，重视进攻，偏废防守，二是防守技术不扎实，运动员对无球队员防守缺乏正确的认识。文章就如何提高以上两个方面提出一些训练方法，仅供参考。     

基于力学的足球—对—防守技术分析

在足球比赛中无论是强队、弱队，进攻型的或是防守型的，防守始终是其最重要的战术部分之一，可以说成功的防守是一半的胜利，本文从持球进攻队员的进攻线路入手，通过对足球比赛中进攻队员的进攻线路和运动规律的分析，建立单个防守队员防守能力的数学模型，研究球的飞行线路，结合防守队员防守能力得出了一对一防守基本策略。     

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.     

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.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

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.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that