Papers by Keyword: LEED

Abstract: Generation of ultra-thin oxide layers (in the nanometer range) is currently a technological lock for numerous applications such as microelectronics, spintronics or even molecular electronics. A precise study of the stages of growth of Mg is essential before studying the growth of the oxide. In this work we report and discuss an experimental study of the very first stages of Mg growth onto Si(100) by Scanning Tunneling Microscopy-Spectroscopy (STM-STS), Auger Electron Spectroscopy (AES) and Low Energy Electron Diffraction (LEED). First, we have shown that an amorphous underlayer is formed onto the silicon substrate for Mg deposits of 0.25 monolayers (ML). This underlayer is attributed to a Mg₂Si silicide formed at RT during Mg deposition. Then, using an original growth method based on alternate cycles of magnesium monolayer adsorption and room temperature (RT) oxidation, we did grow ultra-thin magnesium oxide films onto Si(100). Our study revealed that the ultra-thin Mg₂Si layer at the MgO/Si(100) interface acts as a diffusion barrier and prevents oxidation of the highly-reactive silicon during magnesium oxide growth.

Abstract: Green building or sustainable building and BIM are advancing on the construction industry faster than most practitioners’ anticipation around globe today. BIM adoption in construction has changed the existing construction industry practices to achieve better results with higher quality green buildings that perform at sustainable facilities and reduced costs, BIM provides the opportunity to realize numerous benefits throughout the project conception, design, construction and post occupancy phases of a green building facility, and BIM is also establishing a measurement standard for what is considered a green building. This paper represents the BIM applications in the U.S. green building management development with respect to various aspects of practice in construction.

Abstract: The aim of this work is to harmonize the international certification of "green" construction. For comparison taken American LEED, DGNB German and Russian RGNB, the first two as well-established, and the latter as emerging. The paper discusses the evaluation criteria, as well as sites that claim to be "green." Revealed significant advantages of this construction at the international level.

Abstract: With the increasing awareness of sustainable development in the Russian construction industry, implementation of an energy rating procedure to assess buildings is becoming more important. The most representative building environment assessment schemes that are in use today are Building Research Establishment Environmental Assessment Method (BREEAM) and Leadership in Energy and Environmental Design (LEED). This paper aims to focus on the investigation of energy performance assessment for new buildings including the Russian experience within the BREEAM and LEED schemes. A review of the two schemes with regards to their assessment methods, scopes, performance criteria and energy rating scales are presented. Through this study, an attempt is made to make clear how building energy performance is assessed and therefore awarded with energy credits under the international schemes and to form a good basis for future development of a generic energy assessment framework of Russian Federation.

Abstract: This work aims to contribute to the minimization of solid construction waste at construction sites through the application of sustainability concepts in the construction industry, addressing the recommendations of the LEED certification. The object of study was the works of reform and adaptation of the Maracanã Stadium, venue of the final match of the 2014 FIFA World Cup. The methodology consists of visits to the construction site of the stadium, interviews with responsible people for the jobs and data analysis collected by the Maracanã Consortium Rio 2014 Report. Based on the data collected, it was evaluated the used strategies and tools in the construction to minimize the generation of waste. It was found that the strategies were well executed, contributing to the reduction of waste at the construction site and to the sustainable disposal of the generated waste. The strategies involved environmental, social and economic aspects, giving the construction an international certification for sustainable building.

Abstract: The scope of the paper is to understand the compliance of the prescriptive requirement of Energy Conservation Building Code, 2007, ECBC-2007. It also reveals information of product and application that comfortably exceed the thermal requirement while maintaining high standard of Fire-safety and acoustic values. The environmental objective is also met by the product/application and that helps to satisfy requirement of project’s Green certification.

Abstract: This work aims to improve the information flow diagram of the bidding process of a work in progress of an University Federal (UF) from Brazil aimed at obtaining environmental LEED certification. The research was divided into two parts, the first a review of literature regarding the LEED certification was made​​ and in the second part of field research was conducted in the site of UF. The conclusion of study indicates that the government is able to make buildings with more sustainable criteria, even the systems of environmental certification. However, the main intervention must come from changing interest by managers of UF and especially their awareness regarding the importance of the subject.

Abstract: Based on the Evaluation Standard for Green Building in China, this paper compares evaluation standards of other countries and finds some disadvantages in domestic evaluation system by analyzing their advantages.

Abstract: When global climate change becoming a problem that is getting worse nowadays, Green Buildings have become one of the major solutions to maintaining a sustainable environment. Because most of the public interpret the messages sent by their environment through visual appearance and images, This study aims to analyze the appearance effects of U.S. LEED and Taiwan EEWH Green Building rating systems by conducting surveys on the publics cognition of green building appearances and green building rating systems, and analyzing the relationship between green building appearance and environmental cognition. The results indicate that building appearance is a key judgment reference for identifying green buildings. However, there has been no significant relationships found between green building rating system and green building appearances so far, which may cause confusion as to the publics cognition and image of green buildings. Therefore, it is recommended that building's appearance image should be included in future revisions of the green building rating systems.

Abstract: In this paper, we analyze LEED and Green Standard, from macroscopic to microscopic views. We reveal the major way to promote green building construction, green building theory and the practice of exploration and innovation. Weight factor between LEED and Green Standard bears different roles and the roadmap of green building is illustrated.