排球运动员弹跳能力训练的研究

随着现代排球运动对抗强度和比赛速度的不断提高,排球运动员的弹跳能力在很大程度上决定了球队取胜的概率。可以说,弹跳能力的提高已经成为现代排球运动实现可持续发展的关键因素,这需要引起运动员和教练员的高度重视。本文在分析排球运动弹跳能力的构成和训练原则的基础上,重点就排球运动弹跳能力的训练方法和应当注意的问题进行重点研究,旨在能够为排球运动员弹跳能力的训练提供一定的理论指导和实践参考。     

山东省体育传统项目学校与业余体校排球教练员现状的比较研究

对山东省体育传统项目学校与业余体校排球教练员现状,进行了较深入的调查研究,结果表明:业余体校排球教练员在来源、年龄结构、职称结构、运动经历、岗位培训上占有一定优势,体育传统项目学校排球教练员在学历结构、知识结构、科研能力上具有较大优势;二者训练目标定位存在较大的差异;业余体校排球教练员在训练计划的制定上好于体育传统项目学校排球教练员;二者的运动员选材科学化程度都不高.另外,业余体校排球教练员对训练五要素的注重较为全面,但是二者都忽视了信息传递和适应外部条件要素.总体上看,二者各有优劣势,建议健全教练员激励机制,加强教练员队伍建设,继续推进"体教结合"进程,实现"优势互补".     

福建省排球教练员人力资源开发现状

运用文献资料法、问卷调查法、访谈法、数理统计法等,从培训、激励、配置使用三个方面,分析了福建省排球教练员人力资源开发的现状,针对当前福建省排球教练员培训机会少、激励措施不到位、配置使用不合理等问题,提出利于福建省排球教练员人力资源开发的对策建议。     

对甲级队排球教练员综合素质的调查研究

采用问卷调查与数理统计等方法，对我国甲级队排球教练员综合素质现状进行调查分析．旨在帮助我国排球教练员了解自身，提高从业水平；为排球教练员队伍建设提供理论和实践依据．     

哈尔滨市中学生排球课余训练现状研究

本文运用文献资料、访谈和逻辑分析等方法,从课余训练的保障条件、教练员队伍以及运动员角度研究哈尔滨市中学生排球课余训练的状况存在问题并提出相应对策,促进中学排球课余训练的开展,提高青少年参与排球运动的人口数量,为中学排球教练员提供一些理论参考,促进排球运动的可持续发展。     

优秀排球教练员的指导艺术

训练的科学化首先在于教练员的科学水平。在运动训练过程中，教练员起着主导作用，是提高运动训练质量，培养优秀运动员的关键。高校排球教练员对球员正确的引导方式以及指导技巧是提高高校排球运动技术水平，培养优秀排球人才的关键。     

福建省高校排球运动发展的现状与对策

以福建省首届大学生排球联赛28支参赛队为研究对象,运用问卷调查、专家访谈、录像观察、文献资料、数理统计等方法研究发现,福建省普通高校排球运动队伍少、赛事少、运动员基础差、教练员业务能力较低。因此,要提高福建省高校排球运动的水平,就应提高体育主管领导的认识,积极发挥排球协会的作用,加强后备人才培养,提升教练员业务水平。     

浅谈排球教练员心理挫折的表现与克服

心理挫折是人的一种主要体验与感受，在排球教学与训练中，教练员由于多种因素的干扰，易产生心理挫折，对排球教学与训练的效果产生不良的影响，本文针对排球教练员心理挫折的，提出了相应的方法以便解决。     

排球教练员领导行为激励内化效应实证研究——基于自我决定理论视角

基于自我决定理论,选择了排球运动员为对象,探究教练员领导行为和激励氛围如何通过归属感将外部激励内化,进而影响运动员的行为倾向.结论表明:排球教练员的民主、社会支持、训练指导和正面反馈对任务导向型激励氛围作用明显,而角色认同对激励氛围内化的作用最为显著,激励内化归属感有效预测运动员积极行为取向.排球教练员训练指导、正面反馈和社会支持行为是预测运动员积极行为取向的关键要素.     

对河南省市级业余体校排球教练员的研究

通过文献资料、调查法、数理统计和逻辑分析等研究方法,对河南省市级业余体校排球教练员的性别、年龄以及执教年限、学历结构、职称情况、任教途径、培训状况等方面进行了调查研究,找出河南省市级业余体校排球教练员存在的问题并提出相应的建议,旨在为相关部门提供一定的理论依据,使河南省市级业余体校排球运动健康和谐的发展。     

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.     

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.     

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.     

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.     

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.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

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。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.