试论足球运动员的无氧能力及训练

足球运动因大强度、长时间激烈拼抢使能量供应系统变得极为复杂，比赛中无氧供能常起着十分重要的作用。足球运动中无氧供能可分为：高能磷化物系统供能和糖酵解供能。而针对这两种供能形式可分为一般无氧和专项无氧能力训练。     

守恒型非自共轭奇摄动问题的任意阶差分格式

本对守恒型非自共轭奇摄动问题，构造一个任意阶差分格式。     

能量法在运动生物力学中的应用介绍

通过查阅大量献资料，发现目前运动生物力学发展处于缓慢阶段且新的研究方法尚不完善。基于人体运动研究的复杂性，结合能量法的应用特点：简单性、整体性和广泛性，能量法在各相关学科领域取得的主要成果，指出能量法是目前运动生物力学的发展不可多得的方法之一。     

散手运动员机体的供能特点及其训练

结合当今散手运动的发展趋势，从理论上探讨散手运动的供能特点及其训练方法和训练时的科学监测，为运动员身体训练的科学化提供理论依据。     

论城市水资源的管理与保护

水资源是城市生活、生产最基本的物质基础,针对城市在水资源保护方面存在的问题,提出了综合的管理对策和措施,为城市管理者提供参考.     

The Cathedrals of England: Environmental Performance,Conservation and Exhibitions

ABSTRACT

English medieval cathedrals are a group of buildings of exceptional significance and they contain collections of equal importance. Both the historic building fabric and the artefacts are vulnerable to environmental deterioration. However, unlike buildings owned by heritage organisations, the primary purpose of cathedrals is to further the Christian mission, and the conservation of the building and collections is required to be conducted within these constraints. Increasing visitor numbers and the installation of sophisticated exhibitions makes the task of conservation all the more demanding. Next to mechanical damage, environmental factors are the greatest source of deterioration to sensitive fabric and collections. However, until recently, there has been little systematic study of English cathedral environments and the effects of different uses and control measures. Detailed studies undertaken on 20 cathedrals in the past two decades have provided an insight into their environmental performance and how they differ as a group from many other historic buildings, as well as the passive conservation measures that can be implemented within their primary function.     

Improving Environmental Conditions in the Tomb of Tutankhamen

ABSTRACT

The tomb of Tutankhamen in the Valley of the Kings, Egypt, one of the major attractions of the World Heritage Site of Ancient Thebes and its Necropolis on the West Bank of modern day Luxor, is today a destination for mass tourism. Visitors to the tomb increase relative humidity, elevate carbon dioxide levels, and encourage natural ventilation which facilitates entry of dust into the tomb. These conditions negatively impact the wall paintings and remaining artifacts in the tomb and create an uncomfortable environment for visitors. The deposition of dust inside the tomb collects on uneven wall painting surfaces, obscures their legibility and necessitates cycles of cleaning, which in turn leads to further damage. Developing environmental management strategies in the tomb to counter the effects of visitors and mitigate dust entry is an important component of the collaborative project between the Getty Conservation Institute (GCI) and Egypt’s Ministry of Antiquities (MoA) to conserve the tomb. These included implementation of a filtered-air supply and exhaust ventilation system to stabilize the interior microclimate and reduce dust in order to improve visitor comfort and contribute to the long-term preservation of the tomb.     

Balancing Significance and Maintaining ‘Sense of Place’ in the Sustainable Display of Tudor Tapestries in the Great Hall,Hampton Court Palace

ABSTRACT

Hampton Court Palace’s Great Hall located in Surrey, UK, is a magnificent late medieval hall. Its large hammer-beam roof is sumptuously decorated while its walls for the past century have been rehung with Henry VIII’s five-hundred-year-old tapestries illustrating The Story of Abraham, and one of the most internationally significant sets of sixteenth-century tapestries, commissioned for the same hall. This paper presents research which began in 2007, exploring conservation solutions based on evidence-based decision-making, through to successful implementation of measures that conserve these invaluable tapestries without damaging the aesthetic or physical integrity of the Great Hall. The impacts of environmental exposure conditions mapped in detail were assessed to evaluate risk for each tapestry. Next, feasibility studies identified the effectiveness of a range of potential mitigating options to address each local risk, now being incrementally implemented over many years. The research has enabled us to develop, test and deliver permanent interventions that have – when considered together as a holistic management regime – allowed the tapestries to remain in situ. These interventions will continue to be monitored and evaluated for at least a further year to confirm their effectiveness.