信息系统的信息负载能力分析

本文利用有关语义信息理论提出了一个多层多级的信息系统的信息负载能力分析的理论框架,应用可靠性和完备性分析确定信息系统的信息负载能力,同时根据信息系统的信息负载能力对信息系统满足用户的信息需求进行分类。本研究工作可用于指导信息系统的设计和信息系统的评价。     

Classification of Italian honeys by mid-infrared diffuse reflectance spectroscopy (DRIFTS)

Diffuse reflectance mid-infrared Fourier transform spectroscopy (DRIFTS) and multivariate statistical analysis methods were used for the identification and classification of honey from different floral sources. The 82 honey samples (robinia, chestnut, citrus, polyfloral) were scanned by DRIFTS in the region 4000–600 cm⁻¹ and also transformed in 1st and 2nd derivatives. Spectral data were analyzed by principal component analysis, general discriminant analysis and classification tree analysis. Classification accuracy near 100% was obtained by discriminant and classification tree analyses. Classification models were successfully validated with one-third leave out method and a classification of about 100% were achieved.     

浅析中国人的美学意识的发展与园林文化

园林是为了满足人门对自然的审美需要。该文以中国传统哲学思想及艺术的册点探讨了中国人对自然美的欣赏观念,以促进对中国传统园林的理解。     

圆明园盛期物质实体空间构成要素分析——山水要素

对于圆明园整体空间结构的把握必须从要素的分析入手,尤其是作为园林基底的山水要素。理清圆明园实体空间中山水要素的组织和建构特色,不仅能够让读者更清晰地了解盛期圆明园的建设特色,而且可为目前圆明园遗址的保护整治提供可操作的依据。通过对圆明园相关史料的考证,结合圆明园遗址的现状,重点分析山体要素的类型、形态与尺度等,以及水体要素的水源、水闸、水位和流向、岸壁做法等。     

慕尼黑植物园的演变是欧洲园林艺术发展的缩影

欧洲的园林文化传统上青睐于规整式花园(后来被称为文艺复兴时期的花园),一直到18世纪自然风景园在英国和整个欧洲迅速蔓延开来.相比较而言,中国有着悠久的自然风景园林传统.建于1812年的慕尼黑的旧植物园刚开始也是一个规整式的花园.直到1890年才转型为一个自然风景园.城市扩张给花园造成很大的用地问题.因此1914年慕尼黑新植物园选址在城市的西郊.这20hm2的花园既有规整式的花园区域,也有自然式的花园区域.此外,园内还另辟场地,成立了一个主题花园——生态高山植物园.主题园自20世纪中叶以来越来越受欢迎.如今,主题花园为植物园提供了提高形象的重要机会.     

浅谈巴厘岛度假酒店园林风格

通过对巴厘岛度假酒店的构景元素进行分析总结,对巴厘岛园林风格有了更加理性的认识和把握.     

谈龙潭湖公园进水口的设计艺术

龙潭湖公园进水口现名为“龙门”,是全湖之水源,位于湖面之东隅,靠近护城河。河水沿着地下隧道过闸口（龙门）注入湖内。为了使水闸免于外露,采取了勾连搭歇山式的水榭建筑,前为敞厅后为室,前厅供游息赏景之用,后室为水闸电机操作间,恰好达到了一举双收的效用。     

Explaining variation in front gardens between suburbs of Hobart, Tasmania, Australia

This paper determines the relationships between the dependent variables, presence of trees in front garden and front garden type, and socio-economic, environmental and demographic variables, at the suburb scale in Hobart, Tasmania, Australia. Garden type, largely following a pre-existing classification, and the presence/absence of trees, were recorded from 50 randomly located front gardens in each of 31 suburbs. The suburbs were classified into four groups on the basis of their spectrum of garden types and the percentage frequency of trees. Group one consisted of coastal suburbs of relatively high socio-economic status. Group 2 consisted of suburbs of moderate socio-economic status. Group 3 consisted of the poorest suburbs. The fourth group was composed of suburbs of high socio-economic status, located close to the centre of the city in hilly terrain. All except the rarest garden type occurred in all four groups of suburbs. Multiple regression and general linear models were used to predict tree presence, and the prevalence of particular garden types at the suburb level. Household income was the best predictor of the percentage frequency of trees in front gardens. The variables that appeared in models for garden types were: the percentage of the population with tertiary education (four instances); percentage of population older than 65 years (4); household income (3); percentage of households renting dwellings (3); altitude (3), rainfall (3); unemployment rate (2); percentage of population born in Australia (2); percentage of medium-sized gardens (2); suburb age (1); percentage of workforce in professional and managerial occupations (1). The 12 garden types that could be modelled responded individualistically to these independent variables.     

Use of biogenic and abiotic elemental selenium nanospheres to sequester elemental mercury released from mercury contaminated museum specimens

Mercuric chloride solutions have historically been used as pesticides to prevent bacterial, fungal and insect degradation of herbarium specimens. The University of Manchester museum herbarium contains over a million specimens from numerous collections, many preserved using HgCl(2) and its transformation to Hg(v)(0) represents a health risk to herbarium staff. Elevated mercury concentrations in work areas (～ 1.7 μg m(-3)) are below advised safe levels (<25 μg m(-3)) but up to 90 μg m(-3) mercury vapour was measured in specimen boxes, representing a risk when accessing the samples. Mercury vapour release correlated strongly with temperature. Mercury salts were observed on botanical specimens at concentrations up to 2.85 wt% (bulk); XPS, SEM-EDS and XANES suggest the presence of residual HgCl(2) as well as cubic HgS and HgO. Bacterially derived, amorphous nanospheres of elemental selenium effectively sequestered the mercury vapour in the specimen boxes (up to 19 wt%), and analysis demonstrated that the Hg(v)(0) was oxidised by the selenium to form stable HgSe on the surface of the nanospheres. Biogenic Se(0) can be used to reduce Hg(v)(0) in long term, slow release environments.     

古意如何赋新诗——徐州园博会温州园 设计记略

中国园林是中国优秀传统文化的重要组成部分,当 下我国举办的园林展中的地方展园是探索中国传统造园传承和 创新的重要平台。第十三届徐州园博会温州园的设计从“师法 地域特征”和“一园双境”2个层面进行了传统造园的“微创 新”探索。设计截取温州楠溪江乡村景观的一个片段进行提炼 和重构,营造具有野逸之气的山水园林空间,使游客能够在咫 尺之间身临其境地体验永嘉山水的诗情画意和温州发展的未来 之态。最后,以此展园的营造为契机思考了中国传统园林回归 本源进行传承创新的可能性。