China is the largest producer and consumer of hydrochlorofluorocarbons (HCFCs), and the production of HCFC-22 accounts for more than 80% of all HCFCs. This paper concentrates on the residential air-conditioner indus...China is the largest producer and consumer of hydrochlorofluorocarbons (HCFCs), and the production of HCFC-22 accounts for more than 80% of all HCFCs. This paper concentrates on the residential air-conditioner industry and analyzes the environmental benefits of accelerating the phase-out of HCFC-22 in China. According to the comparison of the baseline and phase-out scenarios of HCFC-22, the findings show that using HC-290 (propane) as a refrigerant alternative will directly reduce the greenhouse effect, and indirectly reduce the emission of greenhouse gases due to a reduction in the electricity consumption. The comparison of two scenarios of HC-290 and HFC-410A refrigerant alternatives shows that the use of HC-290 refrigerant will produce significantly higher environmental benefits than the HFC-410A refrigerant.展开更多
An explanatory survey was conducted to assess the contribution of plant diversity to the ecological and socio-economic condition of the rural household in the offshore island of Bangladesh. Assessment was done by mean...An explanatory survey was conducted to assess the contribution of plant diversity to the ecological and socio-economic condition of the rural household in the offshore island of Bangladesh. Assessment was done by means of multistage random sampling. The homestead sizes of the study area were classified into 3 groups viz, large (〉0.25 ha), medium (0.05-0.25 ha) and small (〈0.05 ha) based on the result obtained from a preliminary survey, and a total of 45 homesteads, 15 from each group, were selected randomly for the study. The average annual income from homestead's plant diversity varied from Tk 5730.00 (US$95.5) to Tk 17500.00 (US$291.67). The rural people were mainly dependent on their homegarden for woodfuel and nutritional requirement as forest was unavailable in the island. The rural people here also cultivated the plant species as a safety measure from frequent cyclone. Constraints hindering the development of homestead plantation were identified and suggestions were given such as the adequate supply of seedlings of fast growing native species and conservation of endangered species to meet the demand of the household as well as to keep ecological balance.展开更多
We used the maps of urban land-use in 1978, 1991, 1994, 2000 and 2004, and softwares such as ArcGIS, Fragstats to analyze the spatio-temporal process of urban residential space quantitatively. Some methods, such as di...We used the maps of urban land-use in 1978, 1991, 1994, 2000 and 2004, and softwares such as ArcGIS, Fragstats to analyze the spatio-temporal process of urban residential space quantitatively. Some methods, such as di- rection analysis and landscape pattern analysis, were employed. The results show that: 1) the residential land grew very rapidly in Hefei from 1978 to 2004, and the increased land was distributed mainly in the central city zone surrounded by a moat; however, after 1994, it was distributed mainly outside the 1th Ring Road; 2) the expansion speeds were very different in different directions: there exists a fastest expansion of residential land in the directions of NE-NNE, SW and SSE, and a slowest one in the directions of E and SEE; 3) the residential land growth went through four stages: slow circular expansion in 1978-1991, 'axes + fan wings' expansion in 1991-1994, more rapid circular expansion in 1994-2000 and 'fan-wings' expansion in 2000-2004; 4) the expansion intensity was also different in all directions in the period of 1978 to 1994, and the most was in SW and then NW; and 5) there were more and more residential land area, and the spatial agglomeration was improved increasingly.展开更多
This paper makes an overall introduction of ecological residence (ER), a new type of eco-building and studiesits origin, definition, status quo and characteristics. Firstly, it shapes like a forest seen from afar and ...This paper makes an overall introduction of ecological residence (ER), a new type of eco-building and studiesits origin, definition, status quo and characteristics. Firstly, it shapes like a forest seen from afar and like a garden seeninside; secondly, its environment should be up to the natural level; thirdly, designing, management, green energyutilization and sanitation should be up to environmental standard; fourthly, the green ecology concept is not only appliedto building but also rooted in the residents. In this paper, the features of ecological residence are summarized - coziness,health, high-efficiency and beauty, and principles of ecological residence are proposed - ecology-based, human-oriented,local-conditions-based and systematic. Also, techniques, problems and various understandings are discussed for theenhancement of ecological residence.展开更多
The article presents the development unemployment and interest rates against the average of important economic variables such as GDP dynamics, transaction prices in one of the local property markets in Poland in the y...The article presents the development unemployment and interest rates against the average of important economic variables such as GDP dynamics, transaction prices in one of the local property markets in Poland in the years 2000-2002. The strength, direction and time delay of the relationships between these variables and transaction prices have been considered during the only period of decline in property prices in the years 2000-2002. The specified relationships have been described using linear regression equations.展开更多
The institutional environment in China has quite evidently changed during modern socio-economic transitions.Driven both by local government and by marketing force,urban social space was redistributed after the reform ...The institutional environment in China has quite evidently changed during modern socio-economic transitions.Driven both by local government and by marketing force,urban social space was redistributed after the reform of urban land and real estate policies.Urban renewal makes for wide differential rent and therefore gentrification is occurring in China.This paper analyzes the background and institutional environment of gentrification in China,and further discusses the process,characteristics and evolutionary mechanisms in the case of Nanjing,through investigation of the attributes of 1075 residential communities built during the 1998-2008 at a macro level,and interviewing the residents and analyzing questionnaires in 6 different and typical communities at a micro level.As a socio-spatial course of two-way interaction,gentrification is divided into 3 stages of incubation,occurrence and fast development,according to the time of landmark events and policy reform on the leasehold of land in Nanjing during socio-economic transition.In terms of the socio-spatial characteristics of gentrification in Nanjing,the gentrification process under the trajectory of urban renewal makes urban social space present a new circle-layer structure;the rise of quite a number of gated communities results in the fragmentation of social space and privatization of public space;the management mode of modern communities and the change of life style have aggravated the indifference of neighborhood relationship of gentrified communities.Based on the empirical evidence of this study,this paper indicates that gentrification is quite different between China and western countries with respect to spatio-temporal order,dominant forces,paths of realization and spatial expression,and it further reveals the dynamic mechanism of gentrification developing in China at the present stage.展开更多
Rural energy consumption in China has increased dramatically in the last decades, and has become a significant contributor of carbon emissions. Yet there is limited data on energy consumption patterns and their evolut...Rural energy consumption in China has increased dramatically in the last decades, and has become a significant contributor of carbon emissions. Yet there is limited data on energy consumption patterns and their evolution in forest rural areas of China. In order to bridge this gap, we report the findings of field surveys in forest villages in Weichang County as a case study of rural energy consumption in northern China. We found that the residential energy consumption per household is 3313 kgce yr^-1 (kilogram standard coal equivalent per year), with energy content of 9.7×lO7 kJ yr^-1, including 1783 kgce yr^-1 from coal, 1386 kgce yr^-1 from fuel wood, 96 kgce yr^-1 from electricity, and 49 kgce yr^-1 from LPG. Per capita consumption is 909 kgce yr^-1 and its energy content is 2.7×lO7 kJ yr^-1. Due to a total energy utilization efficiency of 24.6%, all the consumed energy can only supply about 2.4×107 kJ yr^-1 of efficient energy content. Secondly, household energy consumption is partitioned into 2614 kgce yr^-1 for heating, 616 kgce yr^-1 for cooking, and 117 kgce yr^-1 for home appliances. Thirdly, the associated carbon emissions oer household are 2556 kzC yr^-1, includinz1022 kgC yr^-1 from unutilized fuel wood (90% of the total fuel wood). The rest of emissions come from the use of electricity (212 kgC yr^-1, coal (13Ol kgC yr^-1 and LPG (21 kgC yr^-1. Fourthly, local climate, family size and household income have strong influences on rural residential energy consumption. Changes in storage and utilization practices of fuel can lead to the lO%-30% increase in the efficiency of fuel wood use, leading to reduced energy consumption by 924 kgce yr^-1 per household (27.9% reduction) and 9Ol kgC yr^-1 of carbon emissions (35-3% reduction).展开更多
On the basis of rural household survey in 12 provinces of China in 2005,this research built an econometrical model to find the area standard for rural housing land.This standard is expected to facilitate rural housing...On the basis of rural household survey in 12 provinces of China in 2005,this research built an econometrical model to find the area standard for rural housing land.This standard is expected to facilitate rural housing land administration,efficient and intensive housing land use and policy making.This research concludes:1) according to the household survey data,the average area for rural housing land in China is about 235.26 m 2,and the rural housing land mainly includes unused land(42.89%) and house construction land(37.76%) with the average floor-area ratio of 0.42;2) the indexes in the standard concern the factors such as location,landform,house form,household population and cultivated land area per farmer,which all have significant effects on rural housing land use;3) the reasonable area for rural housing land may be 150 m 2 in average before 2020,and the referential standards in different provinces are 120 m 2,130 m 2,140m 2,150 m 2,160 m 2,170 m 2,190 m 2,200 m 2,210 m 2,220 m 2,230 m 2 and 250 m 2 respectively;and 4) if there are less than two persons or more than five persons in a family,these standards need to be decreased or increased by 7%.When the cultivated land area per farmer is lower than the provincial average,the standards have to reduce by 3.5%.展开更多
Chinese traditional architectural paintings are more drawn to the interior and exterior painting walls, canopies, beams, Fang, stigma, brackets and interior ceilings, caisson, the architectural art of building compone...Chinese traditional architectural paintings are more drawn to the interior and exterior painting walls, canopies, beams, Fang, stigma, brackets and interior ceilings, caisson, the architectural art of building components were processed and formed their rich colors, making the Chinese ancient architecture even more magnificent. It has two kinds of practical effects, one is to decorate building, and the second is to protect the individual masonry wood components and parts them from wind and rain erosion. In other words, functional and aesthetic painting set in one. Most Chinese ancient buildings are wooden structures, for aesthetics and durability wooden structural parts, are generally required to cover color to paint the cover, so the Chinese ancient buildings, whether internal walls, ceiling, doors, windows, roofs, etc. are painted with colors, sculpturing patterns and patterns to enhance the expressive power of art architecture, it can be said that the ancient Chinese architecture buildings are colorized architecture. From afar to go, the overall color of ancient Chinese architecture makes people' s hearts worship must be generated by the primary function of psychological respected. Ancient architectural decoration can be summarized into three categories: gold, color ornaments and carvings, color ornaments which include brush color decoration ornaments, painting and murals are as one of the three categories, the color was given such a high mission in the world, yet there are no countries can be comparable with it, the reason is not just the appearance of color can achieve architectural beauty, but also to show people' s color sustenance and beliefs in a certain extent. Ancient architectural sculpture was created by people in the production practice activities, and it is a product of the interaction between material and spiritual civilization and has a very high social value and artistic value. It carries historical and cultural information, expresses people' s spiritual and cultural pursuits and beliefs and through different art forms, reflects the beauty of different materials, expresses a different artistic content.展开更多
The ethnic landscape of Urumqi has undergone significant changes since the 1980s, which has fostered greater ethnic diversity. However, little is known about the changing patterns of spatial segregation among ethnic g...The ethnic landscape of Urumqi has undergone significant changes since the 1980s, which has fostered greater ethnic diversity. However, little is known about the changing patterns of spatial segregation among ethnic groups. By using the Urumqi census data from 1982 to 2010, this study examines the level of residential segregation of Uighur from Hart and the level of residential segregation of Kazak, Hui, Mongolia and other ethnic minority groups from the majority Han and Uygur population by the indices of dissimilarity and exposure. Then it assesses a regression between residential segregation and the percentage of the ethnic groups. Finally, it finds out whether there exists a regression between residential segregation and the percentage of the ethnic groups. The result reveals that Kazak population is the most segregated group from Han and Uygur, although the level of segregation has declined from 1982 to 2010. Uighur people experienced lower level of segregation from Han between 1982 and 2000, but has gradually increased, particularly from 2000 to 2010; this unexpected change of the segregation for Uighur group might be associated with 7.5 Events. The findings of the study show that the growth of the Han population is negatively associated with segregation of the ethnic groups in a district, and that the association between the percentage of population and segregation was uniform for Uighur, Hui and Kazak: the higher percentage of an ethnic group in a district, the lower level of segregation.展开更多
This paper work aims to response the request for immediate intervention of cultural heritage preservation in Kosovo, with the aim of protection against the harmful consequences of insufficient knowledge leading to a m...This paper work aims to response the request for immediate intervention of cultural heritage preservation in Kosovo, with the aim of protection against the harmful consequences of insufficient knowledge leading to a misuse of technology and to ill-considered approaches. The DGT (dwelling-garret type) is an important vernacular study case. The DGT is a historic building of 18th century, located in the core of Lebusha Village, Municipality of Peja, an architectural construction characterized by two concentric volumes at rectangular layout, very dynamic at horizontal composition, obtained by the movement of two differently constructional materials volumes, stone masonry and timber assembly, and covered with roof clay tiles. In view of its esthetic and artistic values, its important role at developing chain of Kosovo's rural dwellings typology, and its method of construction, the building should be listed as a monument under state protection. Hence, immediate protection interventions, such as conservation of wooden and stone envelope, improvement of walls and finish works, and drainage infrastructure, are considered as the minimum requirement.展开更多
Current demand for housing worldwide has reached unprecedented levels due to factors such as human population growth, natural disasters and conflict. This is felt no more so than in developing countries which have exp...Current demand for housing worldwide has reached unprecedented levels due to factors such as human population growth, natural disasters and conflict. This is felt no more so than in developing countries which have experienced disproportionate levels of demand due to their innate vulnerability. Many current approaches to housing delivery in developing countries continue to utilize inappropriate construction methods and implementation procedures that are often problematic and unsustainable. As such affordability and sustainability are now vital considerations in the international development debate for housing the poor in developing countries in order to meet the long term sustainable development goals and needs of housing inhabitants. This paper utilized an extensive scoping study to examine the various facets impacting on design decision making relative to sustainable and affordable housing delivery in developing country contexts. Aspects of affordability, sustainability, design decision making, appropriate technology use, cultural awareness, as well as current barriers to affordable and sustainable construction in developing countries are examined in detail. Results highlighted the capability of indigenous knowledge, skills and materials as well as selected appropriate technology transfer and cultural awareness by foreign bodies can be utilized in innovative ways in addressing current housing needs in many developing country contexts.展开更多
OBJECTIVE: To introduce diagram of Nine-mansions in which another diagram named Xian-Tu is nested together with the mathematical knowledge hidden in them. METHODS: Exploring with algebraic method the diagram of Nine-m...OBJECTIVE: To introduce diagram of Nine-mansions in which another diagram named Xian-Tu is nested together with the mathematical knowledge hidden in them. METHODS: Exploring with algebraic method the diagram of Nine-mansions and diagram of Xian-Tu nested in it and comparing the diagrams with the eight-pointed-star veins. It widely exists in the Neolithic Age's antiques found in China. RESULTS: The golden rectangle and golden spiral were found hidden in the diagrams and they show close relationship with eight-pointed-star veins. CONCLUSION: The mathematical knowledge does exists in the diagram of Nine-mansions and Xian-Tu, which may mean something for Traditional Chinese Medicine (TCM) for its discourse on Nine-mansions and Eight-winds obviously employed the diagram of Nine-mansions for its medical purpose.展开更多
文摘China is the largest producer and consumer of hydrochlorofluorocarbons (HCFCs), and the production of HCFC-22 accounts for more than 80% of all HCFCs. This paper concentrates on the residential air-conditioner industry and analyzes the environmental benefits of accelerating the phase-out of HCFC-22 in China. According to the comparison of the baseline and phase-out scenarios of HCFC-22, the findings show that using HC-290 (propane) as a refrigerant alternative will directly reduce the greenhouse effect, and indirectly reduce the emission of greenhouse gases due to a reduction in the electricity consumption. The comparison of two scenarios of HC-290 and HFC-410A refrigerant alternatives shows that the use of HC-290 refrigerant will produce significantly higher environmental benefits than the HFC-410A refrigerant.
文摘An explanatory survey was conducted to assess the contribution of plant diversity to the ecological and socio-economic condition of the rural household in the offshore island of Bangladesh. Assessment was done by means of multistage random sampling. The homestead sizes of the study area were classified into 3 groups viz, large (〉0.25 ha), medium (0.05-0.25 ha) and small (〈0.05 ha) based on the result obtained from a preliminary survey, and a total of 45 homesteads, 15 from each group, were selected randomly for the study. The average annual income from homestead's plant diversity varied from Tk 5730.00 (US$95.5) to Tk 17500.00 (US$291.67). The rural people were mainly dependent on their homegarden for woodfuel and nutritional requirement as forest was unavailable in the island. The rural people here also cultivated the plant species as a safety measure from frequent cyclone. Constraints hindering the development of homestead plantation were identified and suggestions were given such as the adequate supply of seedlings of fast growing native species and conservation of endangered species to meet the demand of the household as well as to keep ecological balance.
基金Under the auspices of the National Natural Science Foundation of China (No. 40371038)
文摘We used the maps of urban land-use in 1978, 1991, 1994, 2000 and 2004, and softwares such as ArcGIS, Fragstats to analyze the spatio-temporal process of urban residential space quantitatively. Some methods, such as di- rection analysis and landscape pattern analysis, were employed. The results show that: 1) the residential land grew very rapidly in Hefei from 1978 to 2004, and the increased land was distributed mainly in the central city zone surrounded by a moat; however, after 1994, it was distributed mainly outside the 1th Ring Road; 2) the expansion speeds were very different in different directions: there exists a fastest expansion of residential land in the directions of NE-NNE, SW and SSE, and a slowest one in the directions of E and SEE; 3) the residential land growth went through four stages: slow circular expansion in 1978-1991, 'axes + fan wings' expansion in 1991-1994, more rapid circular expansion in 1994-2000 and 'fan-wings' expansion in 2000-2004; 4) the expansion intensity was also different in all directions in the period of 1978 to 1994, and the most was in SW and then NW; and 5) there were more and more residential land area, and the spatial agglomeration was improved increasingly.
基金The work is supported by Major Program of Natu ral Science Foundation of Anhui Province (Grant No. 06023051)Scientific Research Fund for College and University Young Teachers of Anhui Province (Grant No. 2005jq1022)Innovation Group Fund of Hefei University of Technology.
文摘This paper makes an overall introduction of ecological residence (ER), a new type of eco-building and studiesits origin, definition, status quo and characteristics. Firstly, it shapes like a forest seen from afar and like a garden seeninside; secondly, its environment should be up to the natural level; thirdly, designing, management, green energyutilization and sanitation should be up to environmental standard; fourthly, the green ecology concept is not only appliedto building but also rooted in the residents. In this paper, the features of ecological residence are summarized - coziness,health, high-efficiency and beauty, and principles of ecological residence are proposed - ecology-based, human-oriented,local-conditions-based and systematic. Also, techniques, problems and various understandings are discussed for theenhancement of ecological residence.
文摘The article presents the development unemployment and interest rates against the average of important economic variables such as GDP dynamics, transaction prices in one of the local property markets in Poland in the years 2000-2002. The strength, direction and time delay of the relationships between these variables and transaction prices have been considered during the only period of decline in property prices in the years 2000-2002. The specified relationships have been described using linear regression equations.
基金Under the auspices of European Commission under 7th Framework Programme (No ECUBS–230824)
文摘The institutional environment in China has quite evidently changed during modern socio-economic transitions.Driven both by local government and by marketing force,urban social space was redistributed after the reform of urban land and real estate policies.Urban renewal makes for wide differential rent and therefore gentrification is occurring in China.This paper analyzes the background and institutional environment of gentrification in China,and further discusses the process,characteristics and evolutionary mechanisms in the case of Nanjing,through investigation of the attributes of 1075 residential communities built during the 1998-2008 at a macro level,and interviewing the residents and analyzing questionnaires in 6 different and typical communities at a micro level.As a socio-spatial course of two-way interaction,gentrification is divided into 3 stages of incubation,occurrence and fast development,according to the time of landmark events and policy reform on the leasehold of land in Nanjing during socio-economic transition.In terms of the socio-spatial characteristics of gentrification in Nanjing,the gentrification process under the trajectory of urban renewal makes urban social space present a new circle-layer structure;the rise of quite a number of gated communities results in the fragmentation of social space and privatization of public space;the management mode of modern communities and the change of life style have aggravated the indifference of neighborhood relationship of gentrified communities.Based on the empirical evidence of this study,this paper indicates that gentrification is quite different between China and western countries with respect to spatio-temporal order,dominant forces,paths of realization and spatial expression,and it further reveals the dynamic mechanism of gentrification developing in China at the present stage.
文摘Rural energy consumption in China has increased dramatically in the last decades, and has become a significant contributor of carbon emissions. Yet there is limited data on energy consumption patterns and their evolution in forest rural areas of China. In order to bridge this gap, we report the findings of field surveys in forest villages in Weichang County as a case study of rural energy consumption in northern China. We found that the residential energy consumption per household is 3313 kgce yr^-1 (kilogram standard coal equivalent per year), with energy content of 9.7×lO7 kJ yr^-1, including 1783 kgce yr^-1 from coal, 1386 kgce yr^-1 from fuel wood, 96 kgce yr^-1 from electricity, and 49 kgce yr^-1 from LPG. Per capita consumption is 909 kgce yr^-1 and its energy content is 2.7×lO7 kJ yr^-1. Due to a total energy utilization efficiency of 24.6%, all the consumed energy can only supply about 2.4×107 kJ yr^-1 of efficient energy content. Secondly, household energy consumption is partitioned into 2614 kgce yr^-1 for heating, 616 kgce yr^-1 for cooking, and 117 kgce yr^-1 for home appliances. Thirdly, the associated carbon emissions oer household are 2556 kzC yr^-1, includinz1022 kgC yr^-1 from unutilized fuel wood (90% of the total fuel wood). The rest of emissions come from the use of electricity (212 kgC yr^-1, coal (13Ol kgC yr^-1 and LPG (21 kgC yr^-1. Fourthly, local climate, family size and household income have strong influences on rural residential energy consumption. Changes in storage and utilization practices of fuel can lead to the lO%-30% increase in the efficiency of fuel wood use, leading to reduced energy consumption by 924 kgce yr^-1 per household (27.9% reduction) and 9Ol kgC yr^-1 of carbon emissions (35-3% reduction).
基金Under the auspices of National Natural Science Foundation of China (No. 41001108,40971107)Beijing MunicipalNatural Science Foundation (No. 9113029)
文摘On the basis of rural household survey in 12 provinces of China in 2005,this research built an econometrical model to find the area standard for rural housing land.This standard is expected to facilitate rural housing land administration,efficient and intensive housing land use and policy making.This research concludes:1) according to the household survey data,the average area for rural housing land in China is about 235.26 m 2,and the rural housing land mainly includes unused land(42.89%) and house construction land(37.76%) with the average floor-area ratio of 0.42;2) the indexes in the standard concern the factors such as location,landform,house form,household population and cultivated land area per farmer,which all have significant effects on rural housing land use;3) the reasonable area for rural housing land may be 150 m 2 in average before 2020,and the referential standards in different provinces are 120 m 2,130 m 2,140m 2,150 m 2,160 m 2,170 m 2,190 m 2,200 m 2,210 m 2,220 m 2,230 m 2 and 250 m 2 respectively;and 4) if there are less than two persons or more than five persons in a family,these standards need to be decreased or increased by 7%.When the cultivated land area per farmer is lower than the provincial average,the standards have to reduce by 3.5%.
文摘Chinese traditional architectural paintings are more drawn to the interior and exterior painting walls, canopies, beams, Fang, stigma, brackets and interior ceilings, caisson, the architectural art of building components were processed and formed their rich colors, making the Chinese ancient architecture even more magnificent. It has two kinds of practical effects, one is to decorate building, and the second is to protect the individual masonry wood components and parts them from wind and rain erosion. In other words, functional and aesthetic painting set in one. Most Chinese ancient buildings are wooden structures, for aesthetics and durability wooden structural parts, are generally required to cover color to paint the cover, so the Chinese ancient buildings, whether internal walls, ceiling, doors, windows, roofs, etc. are painted with colors, sculpturing patterns and patterns to enhance the expressive power of art architecture, it can be said that the ancient Chinese architecture buildings are colorized architecture. From afar to go, the overall color of ancient Chinese architecture makes people' s hearts worship must be generated by the primary function of psychological respected. Ancient architectural decoration can be summarized into three categories: gold, color ornaments and carvings, color ornaments which include brush color decoration ornaments, painting and murals are as one of the three categories, the color was given such a high mission in the world, yet there are no countries can be comparable with it, the reason is not just the appearance of color can achieve architectural beauty, but also to show people' s color sustenance and beliefs in a certain extent. Ancient architectural sculpture was created by people in the production practice activities, and it is a product of the interaction between material and spiritual civilization and has a very high social value and artistic value. It carries historical and cultural information, expresses people' s spiritual and cultural pursuits and beliefs and through different art forms, reflects the beauty of different materials, expresses a different artistic content.
文摘The ethnic landscape of Urumqi has undergone significant changes since the 1980s, which has fostered greater ethnic diversity. However, little is known about the changing patterns of spatial segregation among ethnic groups. By using the Urumqi census data from 1982 to 2010, this study examines the level of residential segregation of Uighur from Hart and the level of residential segregation of Kazak, Hui, Mongolia and other ethnic minority groups from the majority Han and Uygur population by the indices of dissimilarity and exposure. Then it assesses a regression between residential segregation and the percentage of the ethnic groups. Finally, it finds out whether there exists a regression between residential segregation and the percentage of the ethnic groups. The result reveals that Kazak population is the most segregated group from Han and Uygur, although the level of segregation has declined from 1982 to 2010. Uighur people experienced lower level of segregation from Han between 1982 and 2000, but has gradually increased, particularly from 2000 to 2010; this unexpected change of the segregation for Uighur group might be associated with 7.5 Events. The findings of the study show that the growth of the Han population is negatively associated with segregation of the ethnic groups in a district, and that the association between the percentage of population and segregation was uniform for Uighur, Hui and Kazak: the higher percentage of an ethnic group in a district, the lower level of segregation.
文摘This paper work aims to response the request for immediate intervention of cultural heritage preservation in Kosovo, with the aim of protection against the harmful consequences of insufficient knowledge leading to a misuse of technology and to ill-considered approaches. The DGT (dwelling-garret type) is an important vernacular study case. The DGT is a historic building of 18th century, located in the core of Lebusha Village, Municipality of Peja, an architectural construction characterized by two concentric volumes at rectangular layout, very dynamic at horizontal composition, obtained by the movement of two differently constructional materials volumes, stone masonry and timber assembly, and covered with roof clay tiles. In view of its esthetic and artistic values, its important role at developing chain of Kosovo's rural dwellings typology, and its method of construction, the building should be listed as a monument under state protection. Hence, immediate protection interventions, such as conservation of wooden and stone envelope, improvement of walls and finish works, and drainage infrastructure, are considered as the minimum requirement.
文摘Current demand for housing worldwide has reached unprecedented levels due to factors such as human population growth, natural disasters and conflict. This is felt no more so than in developing countries which have experienced disproportionate levels of demand due to their innate vulnerability. Many current approaches to housing delivery in developing countries continue to utilize inappropriate construction methods and implementation procedures that are often problematic and unsustainable. As such affordability and sustainability are now vital considerations in the international development debate for housing the poor in developing countries in order to meet the long term sustainable development goals and needs of housing inhabitants. This paper utilized an extensive scoping study to examine the various facets impacting on design decision making relative to sustainable and affordable housing delivery in developing country contexts. Aspects of affordability, sustainability, design decision making, appropriate technology use, cultural awareness, as well as current barriers to affordable and sustainable construction in developing countries are examined in detail. Results highlighted the capability of indigenous knowledge, skills and materials as well as selected appropriate technology transfer and cultural awareness by foreign bodies can be utilized in innovative ways in addressing current housing needs in many developing country contexts.
基金Supported by PACS key course project of Shanghai Municipal Education Commission and Shanghai Municipal Education Commission to Scientific Innovation Research Funds Project (No. 11YZ116)
文摘OBJECTIVE: To introduce diagram of Nine-mansions in which another diagram named Xian-Tu is nested together with the mathematical knowledge hidden in them. METHODS: Exploring with algebraic method the diagram of Nine-mansions and diagram of Xian-Tu nested in it and comparing the diagrams with the eight-pointed-star veins. It widely exists in the Neolithic Age's antiques found in China. RESULTS: The golden rectangle and golden spiral were found hidden in the diagrams and they show close relationship with eight-pointed-star veins. CONCLUSION: The mathematical knowledge does exists in the diagram of Nine-mansions and Xian-Tu, which may mean something for Traditional Chinese Medicine (TCM) for its discourse on Nine-mansions and Eight-winds obviously employed the diagram of Nine-mansions for its medical purpose.