优秀赛艇运动员气体代谢的适应性变化特征

通过对优秀男子赛艇运动员和一般赛艇运动员在递增负荷运动过程中气体代谢的比较研究发现，运动开始时优秀运动员肺通气机能动员速度快于一般运动员；中等强度时，优秀组摄氧量（VO2）增加速度减缓；大负荷运动时，一般组呼吸频率（RR）、心率（HR）迅速增加；力竭时优秀组VO2、HR、氧脉搏（VO2／HR）均高于一般组．     

高原女子公路自行车运动员有氧运动能力的研究

本文采用自行车邀增负荷运动试验和运动现场乳酸阈的测定，对高原女子公路自行车运动员的无氧阈和最大吸氧量进行了研究．结果发现，通气无氧阈时对应的心率（１３７次／分）低子乳酸阈（４ｍＭ／Ｌ）时的心率（１５３次／分）。最大吸氧量的绝对值（２．８Ｌ／ｍｉｎ）和相对值（４７．４ｍｌ／ｋｇ．ｍｉｎ）分别比平原运动员低２２２％和２２．９％，但与平原运动员高原训练期间的测试值比较，上述差异消失。在相同最大吸氧量条件下运动时，高原运动员完成的最大功率（２５１Ｗ）低于平原运动员（２７４Ｗ）。     

兰球运动员的心理训练

兰球运动是一项对客观依存性强，对抗性强的集体项目．运动员在比赛过程中生理、心理均承受较大的负担，在传统的兰球训练中心理素质的训练始终未能得到足够重视，为了使运动员形成良好的心理状态，取得最佳的运动成绩．作者通过对比赛、训练资料的研判，计对比赛中运动员常见的一些心理问题，进行了分析并提出一些提高心理素质的方法，供兰球运动的教练员，运动员和相关的管理部门参考．     

运动对人体血清一氧化氮含量和一氧化氮合酶活性影响的研究

为了探讨人体在不同功能状态下一氧化氮（NO）和一氧化氮合酶（NOS）的变化，应用跑台提供运动负荷，分别在36名大学生进行了安静，亚极量负荷和力竭性运动后血清中NO和NOS的测定。结果发现，亚极量负荷下血清中NO含量显著高于安静状态时（P＜0．001），NOS活性极显著地低于安静状态时（P＞0．001），力竭性运动后，NO含量和NOS活性极显著低于亚极量负荷时（P＜0．001），并且NO已降至低于安静时的水平（P＞0．05），提示，人体血清中NOS活性随运动负荷的增大而持续下降；NO含量在运动的开始阶段随运动负荷的增大而升高，但当达到一定水平时，则随运动负荷的继续增大而下降。     

脉动流化床内换热面与床层的传热特性分析

在大颗粒气固流化床中，颗粒的随机运动、颗粒之间的相互碰撞对颗粒传热影响较大．对脉动流化床内换热面与床层的传热特性进行了试验研究，试验中观察到的脉动床最大传热速率比普通流化床的传热速率提高15％左右，对于较大直径的颗粒，脉动流化床的传热效果更突出；在实际操作过程中，选择合理的床层静止高度和气流脉动频率对提高传热系数有利．     

SPWM数字化自然采样法的谐波仿真分析

根据SPWM（Sinusoidal PWM）数字化自然采样法的基本原理，利用MATLAB软件对其进行谐波仿真分析．通过改变调制度、载波比和采样频率3个参数的大小，得出数字化自然采样法的频谱分布情况，并验证了数字化自然采样法输出波形中附加的一个直流分量．当采样频率比较高时，数字化自然采样法的频谱分布与自然采样法的频谱分布类似．通过对3种采样法的基波幅值和输出电压总谐波失真度（THD）的仿真比较，得出当载波比较小时，数字化自然采样法的调制效果明显优于规则采样法的调制效果，而与自然采样法的调制效果比较接近；当载波比增大时，三者的调制效果趋于一致．     

山东省部分体育院校一、二级跳高专项男生膝关节肌群等长收缩时的生物力学特征

通过ISOMED等速测力系统对17名跳高运动员进行了膝关节等速肌力测试，测试内容为膝关节等长收缩时的最大肌力矩、最大肌力矩屈伸比；对所测数据通过SPSS12．0进行分析处理，从生物力学角度，研究跳高运动员左右腿膝关节屈、伸肌力的各自特征，比较跳高运动员左右腿膝关节屈、伸肌力的差异，为跳高运动训练和理论研究提供依据。     

时－频分析中的不确定性原理

不确定性原理是时－频分析中最重要的概念之一，是构造联合分布时所要依据的准则之一．它向人们揭示了傅里叶变换对之间的关系：较窄的时间持续期产生较长的频率持续期；而较长的时间持续期产生较短的频率持续期；时间波形的宽度和频谱宽度不可能同时任意小     

优秀少年短跑运动员赛前训练血生化指标的评价研究

通过对少年短跑运动员赛前冬训期血清肌酸激酶、血尿素、血睾酮、血清皮质醇、血睾酮/皮质醇等生化指标的测定和评价研究得出:大负荷运动量训练后即刻CK、BU、T、C值都有较大幅度升高,与训练前安静时相比有显著性差异(p<0.05);Hb小于安静时值,无显著差异;次日晨CK和BU与安静时相比虽然均高于安静值,但无统计学意义;次日晨CK、BU、T和C值仍高于训练前安静时值,但无显著性差异(p>0.05);次日晨与运动后即刻相比CK、T、C值有显著性下降(p<0.05);次日晨的BU值比运动后即刻有所下降,但无统计学意义.采用血液生化指标测定和监控能客观、准确评定运动员身体负荷和机能变化,为避免运动损伤,尽早诊断运动疲劳,保证训练系统性和科学性提供实验依据.     

婴啼频谱分析与初步研究

本文对６个月以下的２０例正常婴儿及４０多例有病婴儿的哭声录音进行了频谱分析与研究，结果表明，正常婴儿与有病婴儿的哭声频谱有明显区别；在哭声基频，三维动态频谱的形态，最高共振峰的频率等方面均有显著不同，从而得出有可能根据婴啼频谱分析区分正常婴儿及有病婴儿的结论．     

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