建筑企业BIM私有云平台中心建设与实施

本文针对建筑企业在传统BIM应用中遇到的成本高、管理复杂等问题,提出了一种BIM私有云平台中心的解决方案。首先,我们引入了企业级BIM私有云平台这一概念,介绍了该平台的基本原理,分析了该平台的优势;在此基础上,我们对BIM云平台框架进行了设计,包括存储层、基础管理层、应用服务层、应用接口层和访问层等的设计;并通过风险分析对其可用性风险、信息安全风险、财务风险进行了评估;最后借助一个实施案例对平台的硬件构建、功能模块进行了详细介绍,展示了平台的操作界面和使用方法,反映了建筑企业BIM私有云平台的实施效果,同时给出了相关实施保障的建议,充分体现了BIM私有云平台广阔的应用价值和发展前景。     

民营建筑企业的经营风险与控制

根据实际工作提出民营建筑企业在经营过程中可能遇到的各种风险,针对这些风险,从法律意识、工程承接、承包人选、过程控制等方面提出相应的控制方法,以使民营建筑企业稳健运行,持续发展。     

Protection through property: from private to river-held rights

ABSTRACT

This article explores how private owners can protect bodies of water through private property rights. It compares the use of conventional property rights in the Netherlands and New Zealand with a novel approach whereby a New Zealand river owns itself.     

Training realisation and training demand in the Rioja wine sector in Spain

Training has been identified as an effective tool in the development of human resources, especially in the current context of change. This work aims to analyse the realisation and demand on training courses in the Rioja wine sector in Spain. A representative sample of companies in the sector was interviewed using a questionnaire. Two types of analysis were conducted: univariate and a factorial analysis of variance. These analyses allow using a hypothesis test in which three independent variables are controlled – zone, ownership, and winery size. The results show that the realisation and demand for training are focused on topics related to wine production, and not on marketing. No significant differences were found regarding the realisation and demand for training and the independent variables.     

Sustainable control strategies for plant protection and food packaging sectors by natural substances and novel nanotechnological approaches

An overview is provided of the current technological strategies (also at the nanoscale level) recently involved in plant and/or food protection. In addition, the potential use of natural and sustainable substances, instead of traditional synthesized molecules or chemical-based compounds, is addressed both with respect to packaging systems and novel pesticide formulations. In this context, nanotechnological approaches represent promising strategies for the entire agriculture industry chain, from the field to consumers. Traditional plant protection strategies are often insufficient and the application of chemical-based pesticides has negative effects on animals, humans and the environment. Novel greener tools could represent efficient alternatives for the management of plant diseases using promising strategies; the use of nanotechnologies allows the promotion of the more efficient assembly and subsequent release of environmentally sustainable active principles, limiting the use of chemicals in terms of economic losses. At the same time, new sustainable, antimicrobial and antioxidant systems have been rapidly promoted and investigated in the food packaging sector as a valid eco-friendly possibility for improving the safety and quality of food products and reducing and/or limiting the environmental impact with respect to traditional materials. Together, the scientific community and the growing interest of consumers have promoted the development of new edible and eco-friendly packaging that reduces waste and any environmental impact. In this context, the aim is to provide evidence of the usefulness of strategies aiming to limit agrochemicals, as well as the potential of nanomaterials, in sustainable plant and food protection for agriculture management and the packaging sector. © 2018 Society of Chemical Industry     

Assessment of projected temperature impacts from climate change on the U.S. electric power sector using the Integrated Planning Model®

This study analyzes the potential impacts of changes in temperature due to climate change on the U.S. power sector, measuring the energy, environmental, and economic impacts of power system changes due to temperature changes under two emissions trajectories—with and without emissions mitigation. It estimates the impact of temperature change on heating and cooling degree days, electricity demand, and generating unit output and efficiency. These effects are then integrated into a dispatch and capacity planning model to estimate impacts on investment decisions, emissions, system costs, and power prices for 32 U.S. regions. Without mitigation actions, total annual electricity production costs in 2050 are projected to increase 14% ($51 billion) because of greater cooling demand as compared to a control scenario without future temperature changes. For a scenario with global emissions mitigation, including a reduction in U.S. power sector emissions of 36% below 2005 levels in 2050, the increase in total annual electricity production costs is approximately the same as the increase in system costs to satisfy the increased demand associated with unmitigated rising temperatures.     

历史城市的中华文化传统的传承——南海神庙、老住宅和扬州的私家小园

中国传统城市长期受儒教文化的浸润,充溢了中国传统文化的外形和内涵,在现代城市建设中,人们只顾现代化建设而废祖忘典,如广州的南海神庙就把神圣的空间环境破坏了 中国的各地民居创造了传统家庭阖家团聚的礼仪空间格局和营造了温馨的家庭氛围.扬州古城里有许多老民居重建古典私家小园和重建老宅,用自己的行动在找回乡愁.     

Multi-spot zoning: A chain of public–private development ventures in Tel Aviv

The paper discusses the cumulative aspects of flexible planning’s engagement with massive public–private (PP) development ventures, tracing five ventures in Tel Aviv–Jaffa and analyzing each as a link in a chain of planning precedents. As in many other instances that materialized in this city, each venture was based on a spot-zoning elaboration of a planning deal that balanced cost and benefits for PP agencies. In each test case, public benefits and properties were bargained and official policies were modified. Neo-liberal policies have escalated planning flexibility, linking local multi-spot zoning with extreme luxury and increasingly high buildings. However, as citizens’ criticism progressively questioned the legitimacy of PP planning, a judicial debate is now taking place concerning the definition and function of spatial planning. Focusing this debate and the urban planning tradition that led to it are proposed here as a way of evaluating the concrete assets of urban PP planning today.     

Accelerated growth of the sugarcane,sugar, and ethanol sectors in Brazil (2000–2008): Effects on municipal gross domestic product per capita in the south-central region

During the 2000–2008 period, there was a marked acceleration in the growth of the sugarcane, sugar, and ethanol sectors of Brazil, which are most active in the south-central region of the country. Therefore, the objective of this study was to evaluate the effects of those sectors on the municipal gross domestic product (GDP) per capita in the south-central region of Brazil during that period. To that end, we constructed a theoretical model, estimating its parameters with a generalized method of moments system estimator and using spatial dynamic panel data to estimate the direct (municipal) effects and indirect (regional) effects. The cumulative direct and indirect effects increased the real municipal GDP per capita by 1028 $ in the host municipalities and by 324 $ in each of their 15 closest neighboring municipalities. On the basis of our findings, we can infer that the effects of establishing a sugar mill or ethanol plant are most significant for the host municipality and persist for at least 10 years after operations begin. Our results also indicate that sugarcane production has a significant, positive impact on municipal GDP per capita, not only in the municipalities where that production takes place but also in neighboring municipalities.     

Going Private in Public: A study on shift in behavioral trend using Facebook

The growth of social media has open a new dimension of research in the domain of human Psychology. The data generated by virtue of various available social media platforms is enormous, dynamic, unstructured, imprecise and most of the time uncertain. Facebook has emerged as one of the most successful media of social interaction and thus, contributing a lot to understand various aspects of human behavior. In this paper, a specific and crucial aspect of human nature is being explored- “Going Private in Public”. This aspect deals with some unexploited trend of human psychology and the research work presented in this paper is planned such as to investigate the data that eventually helps to understand this aspect to a great extent. A questionnaire to capture some behavioral trends of Facebook user was designed and filled up using both online and offline mode. The questionnaire included sets of non-identifying demographic questions, Facebook Intensity scale, Social and Emotional Loneliness Scale for Adult, Perceived Stress Scale and NEO-PI-R model. Filling of the forms was made voluntarily and anonymously to avoid any biasing. A total of 312 responses were received and analyzed using Independent-Sample t-test, Cronbach's alpha test, Exploratory factor analysis, and MANOVA etc.