第15届世锦赛中国男篮攻防技战术运用情况

运用观察统计和对比分析法,对中国男篮在第15届世锦赛上整体的攻防状况进行分析。结果表明：中国队内线的优势和外线相对有效的攻击能力所构筑起的进攻体系,表现出一定的整体进攻实力;进攻中的失误偏多,完整进攻次数不足,阵地进攻过分依赖内线,快攻次数很少,一定程度上影响了整体的进攻质量和效果;个人综合防守能力的不足和全队整体防守战术运用的较大差距,导致攻防体系的综合控制能力较低;防守体系整体结构比较松散、防守漏洞较多、防守攻击性较差等问题比较突出。     

篮球教练员临场指挥的研究

通过文献资料法,比较分析法,调查访问法就篮球教练员临场指挥的理论基础、范围、内容、方式及技巧等的诸多要素进行探讨,并提出相应的几点建议,试图为广大篮球教练员提供必要的参考。     

武术双兵器形制及技法的演变

双兵器从最初的双手持握不同兵器到同种兵器、从战阵所用到武术器械,经历了漫长的演变过程。为了理清双兵器形制演变对技法特征的影响,运用文献资料法和逻辑分析法进行分析,认为双兵武艺的技法特征是随着兵器的发展,从简单到复杂,从尚力到尚技,一步一步朝着轻快便捷的方向演进的。     

高师油画教学的历史沿革与改革方向

长期以来,高师油画教学基本上沿袭了专业美术院校的基础授课体系,与高师培养目标规格要求不相吻合。因此,在高师油画教学中,有必要采取分类教程法,即分为古典技法、印象主义技法、现实主义技法、表现性油画技法和油画综合技法指导课程等阶段,形成一种可操作的油画基础教育模式     

在物理教学中引入现代教学手段的研究与实践

通过参加由由西南师大殷传宗教授主持的教育部研究课题JS0 38A的研究工作 ,并承担了教学软件光盘“光学辅助教学课件”的制作 ,因而对在物理教学中如何应用现代教学手段有了一些体会和思考 .本文就CAI技术的特点、开发环境以及CAI技术的适用性进行了研究 .     

Ⅱ优501水稻高产栽培与制种技术

三年来的生产示范表明,Ⅱ优５０１在六安地区连续三年平均单产为８５９９．５～９３２４ｋｇ／ｈｍ２,比汕优６３分别增产１０．６１％～１３．２７％,且出米率达７１％,含直链淀粉１８．５５％、粗蛋白９．７２％、粗脂肪３．２％。同时通过品比试验、示范研究与制种摸索,了解了其株高１１１．５ｃｍ、穗大粒多、生育期１４２天左右,属中籼迟熟类型。提出了Ⅱ优５０１的高产种植技术与制种技术要点：母本５月上旬播种,８月上中旬扬花;父母本播差期３～６天,母本播种１１２～１５０ｋｇ／ｈｍ２;父母本行比１∶１０～１２或２∶１２～１４。肥床旱法育秧,秧龄２５～３０天,株行距为１３．３×２５ｃｍ或１６．７×２０ｃｍ,３０穴／ｍ２。     

少年篮球技术训练应注意的几个问题

抓好少年篮球训练是提高我国篮球运动水平的关键 ,而在少年篮球训练中技术训练是核心内容之一。根据目前少年篮球运动员在比赛中的技术表现 ,提出了在少年篮球技术训练中应该注意的问题 ,供从事少年篮球训练的教练员参考     

速滑冰刀革新后对速滑成绩的影响

通过对第17、18届冬奥会男、女速滑成绩对比分析,指出冰刀革新后对速滑长、中、短距离成绩的影响,使用新式冰刀的技术特点及需要进一步适应和完善的技术问题,进而提出有关适应新技术的针对性训练问题。     

河南省档案馆藏黄氏画像的抢救与修复

黄氏画像是河南省档案馆馆藏谱牒档案的重要组成,具有较高的研究价值,画像破损严重亟待抢救.本文在分析黄氏画像破损程度及原因基础上,提出了与专业团队合作、确定修复原则、制定修复方案、关注风险防范等抢救修复策略,并介绍了画像的修复程序、技术与方法.     

GPR survey to study the restoration of a Roman monument

This paper describes the ground-penetrating radar (GPR) survey carried out on the Roman theatre of Sagunto (Valencia, Spain) following recent restoration work in 1991. The structure has been substantially altered a number of times: it was remodelled during the Roman and Moorish periods, partially destroyed during the Peninsular War (1808–1814) and the Carlist War (1833–1839), and extensively modified during the 1930s and 1950s. Major reconstruction work was carried out in 1991 to convert the building into a working theatre. The GPR survey was performed to detect the possible effects of the 1991 remodelling on the historical remains and to identify the point of contact between the present-day modifications and the Roman remains. We took several on-site measurements of the wave velocity in the different materials in known areas to determine as accurately as possible the depth of the contact point. The velocity was calculated by measuring the depth in these areas and the two-way travel time of the wave. The measurements were taken from the walls and the tiers as the thicknesses of the materials were known in these areas. The recorded values were compared with the velocities reported by other authors and with the information from diffraction hyperbolas recorded in the radar data, which are caused by small objects inserted in the medium. We used these velocities to determine the exact point of contact between the Roman remains and the materials used in later restorations. The contact points cause the reflections that can be seen in the GPR data. The results also reveal considerable variations in the surface of the Roman tiers, which can be attributed to partial erosion in these areas caused mainly by water.