飓风湖住宅,安大略省,加拿大

这个住宅坐落在安大略省哈里伯顿境内一处可以俯瞰飓风湖的陡峭山坡上。这个住宅由两个体块及其中间的连接桥组成,住宅屋檐下7m高的室外“灰”空间成为这个建筑的视觉焦点。     

加拿大安大略省地质矿产资源概况

加拿大安大略省的矿产资源丰富,主要有镍、铜、铂族元素、金、铁、银、锌、钼、铀、铅、铬、锂、钛、钨等21种金属矿产,其形成时代主要为中太古代至新元古代,上述矿产按照其形成的地质背景划分为17个三级构造分区和6个主要的成矿区带:①阿比提比金铜镍铁成矿带;②科博尔特镍铜铂族铀成矿带;③尤奇金铜成矿带;④瓦比贡金铜铁成矿带;⑤瓦瓦金铜铁成矿带;⑥格林威尔锌铁铀成矿带等.在安大略省主要的矿床类型有:①岩浆型铜镍矿床;②绿岩带型金矿;③VMS型铜锌矿床;④斑岩型铜钼矿床;⑤喷流沉积(SEDEX)型矿床;⑥金伯利岩金刚石矿床等,其中岩浆型铜镍矿床和绿岩型金矿床为该区重要的优势矿种,值得重点关注.     

安大略湖公园,多伦多,安大略省,加拿大

<正>安大略湖公园沿多伦多安大略湖组织了一系列不同的场所,将这条充满活力的地带编织成一幅壮丽的图景。过去的多伦多港口用地、建筑垃圾和疏浚淤泥构成的狭长土地、一座污水处理厂、一座饮用水过滤厂、几个现存的公园和海滩被连接在一起,重新组成一个     

莱斯特·鲍尔斯·皮尔逊国际机场,多伦多,安大略省,加拿大

该机场正在进行大规模的扩建工作,其中包括了一座具有77个登机口的新航站楼。预计到2015年,该机场每年客流量将达到2900万人次。设计团队为机场拟定了长远发展的整体设计方案,其中分为几个阶段。届时,新的1号航站楼将取代现存所有的航站楼。机场的重建计划包括新的跑道、主要货运设施、飞机的维修设施,以及改善道路状况。这些都将在未来的15年内实现。AAC（加拿大机场建筑师）将监管整个扩建工作,直至项目竣工完成。     

加拿大安大略省的棕地再开发及对我国的启示

本文分析了加拿大安大略省棕地再开发的形式和过程.总结出棕地需要在法律的保障下,通过政府的引导,明确环境责任、财政支持,并结合有效的规划方法和公众参与模式来进行开发.这些经验为在我国城市进行退二进三,转换工业用地的生产功能提供了思路.     

加拿大安大略省的棕地再开发及对我国的启示

本文分析了加拿大安大略省棕地再开发的形式和过程。总结出棕地需要在法律的保障下,通过政府的引导,明确环境责任、财政支持,并结合有效的规划方法和公众参与模式来进行开发。这些经验为在我国城市进行"退二进三",转换工业用地的生产功能提供了思路。     

最“绿色”的校园——加拿大安大略理工大学校园设计

安大略理工大学（UOIT）在安大略省地教育体系中,是一个大胆的创新。在过去的35年里,UOIT被设计成为21世纪学术性和社会性的结合体。作为安大略省第一个以笔记本电脑为教学硬件基础设施的大学,在校园的设计上,设计者采用了大规模的无线集成系统,并将其纳入了整个建筑群的设计中。     

加拿大建设机械职业技能教育及其启示

在西方发达国家中,加拿大是较早开展工程建设机械技能培训认证工作的国家之一。早在1982年,加拿大就专门设立了安大略省操作技师培训学院(简称OETIO),提供起重机操作员、重型设备、建筑安全训练计划以及其他迎合施工安全等行业急需的技能训练和教育课程。目前加拿大已在安大略省建立了两个国际水平的培训校园和附属基础设施。     

世界著名植物园之旅——加拿大皇家植物园

加拿大皇家植物园位于加拿大安大略省汉密尔顿市,是世界最大的几个植物园之一,占地面积1093公顷,包括5个园区和四个自然保护区.植物园展示了50多个专类植物收集,尤其突出的有世界上最大的丁香收集.近30公里长的园路连接着几个保护区和湿地,包括北美最大的湿地恢复项目之一.     

Aggregate resources inventory in Ontario,Canada

Ontario has an abundance of aggregate resources; however, their location is fixed by nature and they are not always found in the areas of greatest demand. Over 120 million tonnes are produced yearly. Much of this production is in urban fringe areas. Comprehensive planning and resource management strategies, based on an appropriate planning framework and a sound knowledge of the total mineral aggregate resource base, are required to make the best use of available resources. To achieve this, Ontario's Mineral Aggregate Resource Policy requires 1) the Ontario Ministry of Natural Resources to prepare a detailed inventory of the aggregate resources, including location, quality, quantity and extractive activity, and 2) the recognition of aggregate resources in municipal official plans.     

A 13-month survey of nematodes at three water treatment plants in southern Ontario, Canada

Nematodes were present in almost every sample of treated water from all 3 plants examined, often in high numbers (a maximum of 42.5 1⁻¹), with a considerable proportion being motile. Existing suggested standards of nematode concentrations were exceeded at each plant. Treatment processes, including coagulation, filtration and chlorination, were ineffective in immobilizing or removing most nematodes. The most significant factor in reducing nematode densities in this study was a slow-moving canal at one plant which acted as a presettling tank.High river flow, heavy rainfall and high raw water turbidity all corresponded to increases in nematode concentrations and can be used to indicate those times when extra measures to reduce numbers might be applied.Further research is recommended on the supposed pathogen carrying abilities of nematodes in drinking water.     

Landscape Policy and Planning Practice: the gap in understanding, Ontario, Canada

Distortions inevitably occur between the creation of policy and its practical application. The gap that exists between the understanding of landscape held by the policy writers and that of the implementers of land-use planning legislation in Ontario, Canada is revealed. The story is told over a nine-month period between the passing and defeat of one planning act, and the introduction of another. A change of government and a substantive shift in governing ideology resulted in the radical transformation of the policies protecting landscapes in this Canadian province's land-use development process. The research documented took place over that crucial period and gives a window into the dynamics of landscape conservation that is created by upper- and lower-tier differences. Higher-level policy makers have a considerable task in protecting landscapes within land-use planning that demands rational and bounded terminology and processes. Conversely, the local implementers of that policy need more flexible and site-specific strategies to conserve those landscapes on the ground. It is this gap that has stalled the protection of landscapes in Ontario, where governments and communities struggle to conserve their valued landscapes - a phenomenon not uncommon in other locations. Some strategies on how to bridge that gap in understanding and improve the prospects for landscape conservation are given.     

Fine-scale mercury trends in temperate deciduous tree leaves from Ontario, Canada

This study focused on the value of deciduous leaves as biomonitors of total mercury (THg). Leaf samples were collected from a range of deciduous species from five sampling sites in the province of Ontario, Canada. These included a site in the northwest (the Experimental Lakes Area, ELA), two sites in central Ontario (the town of Dorset and the Centre for Atmospheric Research Experiments, CARE), and two sites in the southeast (Sandbanks Provincial Park, SBPP and the City of Kingston). The sampled species exhibited distinctive species-specific differences with red oaks consistently having lower leaf THg concentrations than all maple species, while black and white ash leaves had the highest concentrations. Spatially, leaves collected across the distance between ELA and SBPP (~ 1500 km apart) had overlapping THg concentrations between 20 and 40 ng/g. Unexpectedly, leaves from urban parks of Kingston had considerably lower THg concentrations (< 25 ng/g) than the other sites, which suggested leaves may not reflect subtle gradients of atmospheric THg found under field conditions. Leaf THg increased with the growing season, with highest THg leaf concentrations found in early autumn just before senescence. Microspatial differences within a single tree, such as position on a branch are important, since higher mercury concentrations were associated with leaves positioned deeper into the canopy relative to outer leaves more exposed to wind turbulence and sunlight. Within any single leaf, THg concentrations were highest in the leaf tissue, and consistently distributed, while the vein and petiole tissue had lower THg concentrations. There was no relationship between THg concentrations and leaf area. Using deciduous tree leaves as regional temporal monitors of bioavailable mercury may be feasible, but careful selection of leaf sampling sites on the tree itself and the timing is of utmost importance for ensuring consistent and high quality biomonitoring data.     

Lead in the tissues of terrestrial raptors in southern Ontario, Canada, 1995-2001

Terrestrial raptors which feed on upland hunted game species may increase their risk to lead exposure and lead poisoning by ingesting lead shot found in the tissues of prey. Lead exposure in 225 individuals of nineteen species of terrestrial raptors, collected as carcasses in southern Ontario from 1995-2001, was examined through the analysis of bone, liver and kidney tissues. In this study, one red-tailed hawk contained liver lead concentrations and exhibited signs consistent with lead poisoning. Liver and kidney concentrations of one turkey vulture were also significantly higher than that associated with subclinical effects. This same bird, plus another turkey vulture and a northern harrier, had elevated bone lead concentrations (>10 microg/g dw) associated with possible toxicity. Turkey vultures had the highest mean concentrations of lead in bone and kidney compared to other raptor species. While it appeared only a single bird suffered acute lead poisoning, lead levels exceeded threshold concentrations associated with subclinical or acute toxicity in 4 of 225, almost 2%, of terrestrial raptors assessed. Given the association between lead exposure in raptors and hunting of game species reported in other studies, the continued use of lead shot for upland hunting in Ontario likely remains as one of the primary sources of lead and a continued risk to these birds of prey.     

Geological compressed air energy storage as an enabling technology for renewable energy in Ontario,Canada

As renewable resources are increasingly used to provide power to the world’s demand centres, dealing with the intermittent nature of these resources and their affect on the power grid is becoming a significant issue. Compressed air energy storage (CAES) is one technology that is proposed to increase flexibility when integrating renewable energy sources such as wind, solar and tidal generation with the power grid. By creating a storage medium where the energy produced from these sources can be stored and dispatched to the grid as required, a higher penetration of renewable energy generation can be achieved.     

Small is Transient: Housebuilding Firms in Ontario,Canada 1978-98

The North American housebuilding industry has been neglected in urban and housing studies. Its firm size structure and instability have long been cause for concern, but have rarely been given more than anecdotal treatment. This paper examines the transience of housebuilders in Ontario from 1978 to 1998. Using a census of builders provided by the Ontario New Home Warranty Program, the industry's firm membership is found to be extremely transient. Most transience comes by way of new firm formation and permanent firm exits from the market, while a small cohort of builders withdraw from and re-enter the market on a regular basis. The business cycle speeds and slows these processes but flux is due primarily to the annual turnover of small builders. To reduce transience, policy makers must decide between slowing entry and perhaps raising industry concentration or allowing continued firm entry and probably transience.     

Temporal and spatial trends of mercury in fish collected in the English-Wabigoon river system in Ontario, Canada

The First Nations communities of Grassy Narrows and Wabaseemong (Ontario, Canada) have been impacted by mercury pollution since the 1960s. This study was implemented with the objective of providing these communities with information on current mercury concentrations in their catch, in order to make appropriate fish consumption choices. A total of 851 fish samples, including Walleye, Northern Pike, Large-mouth Bass, and Whitefish, were collected from thirteen lakes and rivers. Total mercury was measured and the relationship between fish length, mercury concentration, and lake of origin were assessed. It was found that fish from most of the lakes exhibit a positive relationship between length and mercury accumulation. Mercury concentrations in fish collected from Clay Lake, closest to the original source of contamination, are higher than those from other lakes. Mercury concentrations have declined over the last 25 years but the gradient of contamination was still observed. Results were communicated to the communities for public health purposes.     

挑战与机遇——探索网络时代的建筑历史教学之路 2015中外建筑史教学研讨会综述

2015年中外建筑史教学研讨会于2015年5月在同济大学召开。会议以"挑战与机遇——探索网络时代的建筑历史教学之路"为题,探讨在全球化网络时代,知识生产、传播和交流的方式发生质的改变背景下建筑历史教学的新理念、新思路和新方法。文章以当代建筑史研究动态与建筑史教学、网络时代与建筑史教学和建筑史教学在建筑学教育中的地位为三条主要线索,根据会议发言、论文和相关背景文献,整理了与会者的主要观点。     

Landscape Policy and Planning Practice: The gap in understanding,Ontario, Canada

Distortions inevitably occur between the creation of policy and its practical application. The gap that exists between the understanding of landscape held by the policy writers and that of the implementers of land-use planning legislation in Ontario, Canada is revealed. The story is told over a nine-month period between the passing and defeat of one planning act, and the introduction of another. A change of government and a substantive shift in governing ideology resulted in the radical transformation of the policies protecting landscapes in this Canadian province's land-use development process. The research documented took place over that crucial period and gives a window into the dynamics of landscape conservation that is created by upper- and lower-tier differences. Higher-level policy makers have a considerable task in protecting landscapes within land-use planning that demands rational and bounded terminology and processes. Conversely, the local implementers of that policy need more flexible and site-specific strategies to conserve those landscapes on the ground. It is this gap that has stalled the protection of landscapes in Ontario, where governments and communities struggle to conserve their valued landscapes - a phenomenon not uncommon in other locations. Some strategies on how to bridge that gap in understanding and improve the prospects for landscape conservation are given.