The modernization of water conservancy project management is a complicated engineering system involving a management system, a management method, management personnel, the exertion of social, economic, and ecological ...The modernization of water conservancy project management is a complicated engineering system involving a management system, a management method, management personnel, the exertion of social, economic, and ecological effects, and so on. However, indices for evaluating the modernization of water conservancy project management are usually unobtainable in practical applications. Conducting appropriate extension of the classical rough set theory and then applying it to an incomplete information system are the key to the application of the rough set theory Based on analysis of some extended rough set models in incomplete information systems, a rough set model based on the θ-improved limited tolerance relation is put forward. At the same time, upper approximation and lower approximation are defined under this improved relation. According to the evaluation index system and management practices, the threshold for θ is defined. An example study indicates the practicability and maneuverability of the model.展开更多
An insight into the shared history of built heritage and urban development along the 20th century reveals different attempts to solve the dialectic conflict between conservation and modernisation from the discipline o...An insight into the shared history of built heritage and urban development along the 20th century reveals different attempts to solve the dialectic conflict between conservation and modernisation from the discipline of architecture.This paper makes a review of the nature,aims and results of these attempts,highlighting the contributions to the discussion that originated from Italy between the 1950s and 1980s.It points to the challenges brought by the 1972 World Heritage Convention and the extent of social,economic and urban changes that have contributed to raise awareness about urban heritage in the present time.The article departs from a value-centred framework in order to describe current architectural,cultural,economic and social issues concerning the contribution of architecture and urban planning to heritage conservation in the age of globalization.This insight will delineate new conservation practices,strategies and methodologies,especially relating to the 2011 Historic Urban Landscape Recommendation and its declared goal for sustainable urban development.展开更多
Over the last 25 years the conservation of 20^(th)-century heritage has developed into a distinct area of practice, catalysed by the efforts of dedicated international and local interest groups and the forward thinkin...Over the last 25 years the conservation of 20^(th)-century heritage has developed into a distinct area of practice, catalysed by the efforts of dedicated international and local interest groups and the forward thinking of a number of government and inter-government organisations who identified, protected and developed approaches to its care. Much has been achieved, but more work is needed to address many of the distinct challenges to conserving the heritage of the 20^(th) century. In 2011, the Getty Conservation Institute (GCI) launched its Conserving Modern Architecture Initiative (CMAI), which seeks to respond to the outstanding current challenges and contribute to advancing practice in this emerging area of conservation. It began with a survey of the field to identify where existing efforts could be best supported and enhanced, or where knowledge gaps could be potentially filled. In response the GCI built a comprehensive program to meet these identified needs and five years later, a number of activities and projects are underway. These include a series of publications, a training program, historical and technical research and two field projects at Louis Kahn’s Salk Biological Institute (1965) and the house of Ray and Charles Eames (1949), both in California. This paper outlines current GCI efforts, reports on initial outcomes and describes forthcoming activities.展开更多
Buildings in the mid-twentieth century were conceived within a bubble of expectation of boundless energy, a situation that was short-lived, and a mindset set that is hard to comprehend these days. Nowadays, it is easy...Buildings in the mid-twentieth century were conceived within a bubble of expectation of boundless energy, a situation that was short-lived, and a mindset set that is hard to comprehend these days. Nowadays, it is easy to understand that the thermally flimsy products of this era require some dramatic invention-what we often call a “deep energy retrofit” (DER)-and there is an emerging set of standard responses to such envelope enhancement. But some of these buildings have high architectural significance, and deserve a more design-oriented solution than simply wrapping them in an insulative swaddle. This is the story of one such building.展开更多
The Austrian art historian Alois Riegl(1858-1905)revolutionised the European concept of the monument and paved the way towards the codification of the historicity of artefacts at the international level.Today,co...The Austrian art historian Alois Riegl(1858-1905)revolutionised the European concept of the monument and paved the way towards the codification of the historicity of artefacts at the international level.Today,conservation work and relevant terminology still build upon the principles first outlined in his work Der moderne Denkmalkultus(1903)more than a hundred years ago.And yet,modern information/communication technologies have long challenged the idea of‘age value’(Alterswert),of a monument possessing value simply because it shows‘signs of age’(Altersspuren),through their ability to digitally recreate historical architecture in its original form and thereby to transcend the boundaries of time and space.This paper discusses the challenges and opportunities for monument preservation in the 21st century in the light of Riegl’s thoughts on how to perceive(‘visualise’)the past.It investigates the validity of Riegl’s theories in the context of today’s virtual reality/ies at a theoretical level,and their potential for advancement in preservation theory,expanding on historical thoughts rooted in 18th and 19th century preservation theories.By analysing Riegl’s commemorative values,stratigraphic picturing of history’s material debris,and fear of formlessness,this paper explores digitisation as the driving force for change in attitude from traditional,restrictive thinking to a modern way of thinking which is receptive to new technological developments,including,for example,exploring augmented and virtual realities as a means of achieving the sensory aesthetic experience required by age value.展开更多
基金supported by the Fundamental Research Funds for the Central Universities(Grant No.2013B102008)the Open Fund of the Yellow River Committee(Grant No.2011535012)
文摘The modernization of water conservancy project management is a complicated engineering system involving a management system, a management method, management personnel, the exertion of social, economic, and ecological effects, and so on. However, indices for evaluating the modernization of water conservancy project management are usually unobtainable in practical applications. Conducting appropriate extension of the classical rough set theory and then applying it to an incomplete information system are the key to the application of the rough set theory Based on analysis of some extended rough set models in incomplete information systems, a rough set model based on the θ-improved limited tolerance relation is put forward. At the same time, upper approximation and lower approximation are defined under this improved relation. According to the evaluation index system and management practices, the threshold for θ is defined. An example study indicates the practicability and maneuverability of the model.
文摘An insight into the shared history of built heritage and urban development along the 20th century reveals different attempts to solve the dialectic conflict between conservation and modernisation from the discipline of architecture.This paper makes a review of the nature,aims and results of these attempts,highlighting the contributions to the discussion that originated from Italy between the 1950s and 1980s.It points to the challenges brought by the 1972 World Heritage Convention and the extent of social,economic and urban changes that have contributed to raise awareness about urban heritage in the present time.The article departs from a value-centred framework in order to describe current architectural,cultural,economic and social issues concerning the contribution of architecture and urban planning to heritage conservation in the age of globalization.This insight will delineate new conservation practices,strategies and methodologies,especially relating to the 2011 Historic Urban Landscape Recommendation and its declared goal for sustainable urban development.
文摘Over the last 25 years the conservation of 20^(th)-century heritage has developed into a distinct area of practice, catalysed by the efforts of dedicated international and local interest groups and the forward thinking of a number of government and inter-government organisations who identified, protected and developed approaches to its care. Much has been achieved, but more work is needed to address many of the distinct challenges to conserving the heritage of the 20^(th) century. In 2011, the Getty Conservation Institute (GCI) launched its Conserving Modern Architecture Initiative (CMAI), which seeks to respond to the outstanding current challenges and contribute to advancing practice in this emerging area of conservation. It began with a survey of the field to identify where existing efforts could be best supported and enhanced, or where knowledge gaps could be potentially filled. In response the GCI built a comprehensive program to meet these identified needs and five years later, a number of activities and projects are underway. These include a series of publications, a training program, historical and technical research and two field projects at Louis Kahn’s Salk Biological Institute (1965) and the house of Ray and Charles Eames (1949), both in California. This paper outlines current GCI efforts, reports on initial outcomes and describes forthcoming activities.
文摘Buildings in the mid-twentieth century were conceived within a bubble of expectation of boundless energy, a situation that was short-lived, and a mindset set that is hard to comprehend these days. Nowadays, it is easy to understand that the thermally flimsy products of this era require some dramatic invention-what we often call a “deep energy retrofit” (DER)-and there is an emerging set of standard responses to such envelope enhancement. But some of these buildings have high architectural significance, and deserve a more design-oriented solution than simply wrapping them in an insulative swaddle. This is the story of one such building.
文摘The Austrian art historian Alois Riegl(1858-1905)revolutionised the European concept of the monument and paved the way towards the codification of the historicity of artefacts at the international level.Today,conservation work and relevant terminology still build upon the principles first outlined in his work Der moderne Denkmalkultus(1903)more than a hundred years ago.And yet,modern information/communication technologies have long challenged the idea of‘age value’(Alterswert),of a monument possessing value simply because it shows‘signs of age’(Altersspuren),through their ability to digitally recreate historical architecture in its original form and thereby to transcend the boundaries of time and space.This paper discusses the challenges and opportunities for monument preservation in the 21st century in the light of Riegl’s thoughts on how to perceive(‘visualise’)the past.It investigates the validity of Riegl’s theories in the context of today’s virtual reality/ies at a theoretical level,and their potential for advancement in preservation theory,expanding on historical thoughts rooted in 18th and 19th century preservation theories.By analysing Riegl’s commemorative values,stratigraphic picturing of history’s material debris,and fear of formlessness,this paper explores digitisation as the driving force for change in attitude from traditional,restrictive thinking to a modern way of thinking which is receptive to new technological developments,including,for example,exploring augmented and virtual realities as a means of achieving the sensory aesthetic experience required by age value.
