软技术对操作者学习效率影响的实证研究

软技术作为一种限制不同操作者之间,以及操作者与工具之间进行协作的规则体系,改变了操作者决策依据和动作的发生方式,最终影响了操作者的学习效率;本文证实了软技术对操作者学习效率的影响:在同样任务条件下,在软技术的规范下,操作效率的改进时间,要短于自学习的方式;也就是在软技术作用下,操作效率将先达到比较稳定的高点,得到了证实;操作者效率改进过程发生了变化,操作效率改进曲线有突变,软技术明显地改变了效率改进曲线;而无软技术作用时,操作者效率改进是平缓的,无突变的。     

Sexual dimorphism in bone–muscle relationship in young adults

The purpose of this study was to analyse associations between lean soft tissue (LST), a surrogate of skeletal muscle mass and key fracture-related geometric characteristics of the proximal femur. Moreover, we examined the role that muscle played on the proximal femur geometry in response to physical activity (PA). Participants were 83 young adults. Leg LST (exposure) was assessed by dual energy X-ray absorptiometry (DXA). Proximal femur geometry was derived from a left hip DXA scan. Geometric variables (outcomes) included the femoral neck axis length (FNAL), the femoral neck width (FNW), the neck–shaft angle and FNW|FNAL (an index of robustness). PA was evaluated by accelerometry. Linear regression was used to analyse relationships. Additional exposure variables included body height and mass. In males, leg LST explained 17.4% of variation in FNAL (P < 0.001) and 15% in FNW (P = 0.015). In females, it explained 8.8% of the variance in FNAL (P = 0.020). Associations remained significant in males, but not in females, when vigorous PA was added to the models. These results suggest that public health approaches to promote PA may be particularly important in females since vigorous PA seems to convey advantages in femur geometry and consequently in bone strength.     

国际体育法研究——来自软法视角的考察

从“软法”视角对国际体育法的构成进行了分析.国际体育法由硬法与软法两大板块构成,其中硬法构成了国际体育法的内核,软法是其外围.由于体育特殊性使然,未来国际体育法的发展将要倚重软法之治,但是,并非轻视硬法的作用.“软硬兼施,刚柔并济”是国际体育治理发展的合理道路.     

软式排球与室内排球技术特点的比较研究

运用文献资料法、比较法等,对软式排球与室内排球技术特点进行比较与研究。结果表明：软式排球具有质地柔软、球速慢、趣味性高和娱乐性强,运动技术难度低易于掌握、比赛来回球次数多,具有较强的观赏性等特点,适合不同年龄、性别的人参与。     

从国家文化软实力视角看中国武术的价值使命

在世界多元化发展的今天,我国以提升国家软实力来塑造国家的国际形象,从而能够在世界上获得更大的国际竞争力。在我国全面提升软实力的背景下,中国武术通过自己独有的文化特性,不仅对我国优秀传统文化的传播起到积极的推动作用,而且也为国外了解我国传统文化开辟了一个重要途径。同时,中国武术为国家软实力提供"民族理念、民族精神、民族自信"。     

武术进入孔子学院的可行性与策略研究

武术与孔子学院具有提升中国软实力的共同诉求。武术进入孔子学院具有可行性：武术与孔子学院在文化传播上具有耦合性;武术进入孔子学院是对孔子理念的秉承,有助于多维度阐释＂和＂的理念,进一步推动中外文化的交流与融合;学生练习武术可以修养身心,提高学习兴趣与效率。以促进武术和孔子学院的发展为基点,以提升中国软实力为目标,武术进入孔子学院的策略是：由＂小武术＂走向＂大武术＂,形成＂大武术＂发展观;文化与技术互彰,以文化为目的;传统与竞技并举,以传统为主导;技击与健身互融,以修身为旨归;武术与汉语互显,提炼＂武术汉语＂教学模式。     

Numerical Simulation of Heat Transfer Characteristics of Horizontal Ground Heat Exchanger in Frozen Soil Layer

At present ,during the design of ground source heatpump (GSHP) systems ,technical attention is always fo-cused on vertical borehole heat exchangers and surroundingsoil[1 ,2],butthe effects of their shallowhorizontal connect-ing pipes ,or horizontal ground…     

Influences affecting the soil-water characteristic curve

INTRODUCTION The soil-water characteristic curve (SWCC) gives the relationship between the amount of water in the soil (i.e. gravimetric or volumetric water content) and soil suction (i.e. matric suction at low suction and total suction at high suction). Many properties of a partially saturated soil such as the coefficient of permeability, shear strength and volume strain, pore size distribution, the amount of water contained in the pores at any suction, can be obtained from the SWCC. …     

湖南文化软实力提升与湖南民族传统体育文化开发

开发民族传统体育文化对于提升湖南文化软实力起着重要作用。通过研究分析,指出了湖南民族传统体育文化所具备的优势;同时,对湖南文化软实力提升过程中湖南民族传统体育功能开发所面临的问题进行了探讨,并针对这些问题提出了相应对策。     

重建土壤水库是黄土高原治本之道

基于黄土高原严重的生态环境问题,在分析黄土高原成因机理及结构特点基础上,探讨了黄土高原“土壤水库”的功能,研究了地表水库、土壤水库、地下水库三库协防在治理黄土高原环境方面的重要作用。结果表明,应将重建土壤水库,实现三库协防,作为构建和谐黄土高原,再现秀美山川的理论依据和指导方针,而地表径流调控与水土资源持续利用技术研究,可为黄土高原国土整治“28字方略”理论实现提供重要的技术支撑。