scholarly journals Comparative Analysis of Material Criteria in Green Certification Rating Systems and Urban Design Guidelines

Author(s):  
Jungwon Yoon ◽  
Jiyoung Park
Urbani izziv ◽  
2019 ◽  
Vol 2 (30) ◽  
pp. 70-84
Author(s):  
Sibel Polat ◽  
H. Özge Tümer Yıldız

In recent years, central and local governments have carried out studies to establish a legal administrative infrastructure for urban design and to develop urban design guidance to preserve the identity of historic cities under the pressure of rapid urbanization in Turkey. The main aim of this article is to explain how we implemented a participatory urban design guidance (PUrDeG) model for cultural heritage sites, which was developed as part of a research project. We explain how we used various techniques to engage various actors in preparing urban design guidelines for a cultural heritage site. In addition, the article discusses the importance of community engagement techniques and processes in developing urban design guidance, and the context of guidelines for sustainable conservation of cultural heritage sites with examples from the United Kingdom and Turkey. It then presents a case study conducted in the Hanlar District, a Unesco world heritage site in Bursa, Turkey. The case study includes research on planning decisions, site analysis, a survey of urban residents, in depth interviews with local artisans, and an urban design workshop with various actors. The main outcomes of this study include a presentation of how to use various community engagement techniques to prepare urban design guidelines for cultural heritage sites in Turkey, an urban design guidance system for Bursa, and a list of recommendations related to urban design guidelines for the Hanlar District and Bursa in the light of UK experience.


Author(s):  
Zhenjiang Shen ◽  
Zhenhan Lei ◽  
Xuefei Li ◽  
Kenichi Sugihara

Author(s):  
J. Russi ◽  
M. L. Martins ◽  
H. A. Gründling ◽  
H. Pinheiro ◽  
J. R. Pinheiro ◽  
...  

This paper proposes an improved design to calculate the snubber auxiliary elements of ZVT DC-DC PWM converters with snubber assisted auxiliary switch. The proposed improved design guidelines are based on the reduction of the conduction losses through the auxiliary circuit. It is accomplished by the unique location of the turn-off snubber capacitor, which is shared by both active switches. By means of this improved design guidelines the converter efficiency can be increased. An efficiency comparative analysis is carried out and the experimental results, obtained from 1 kW, 100 kHz laboratory prototypes, show a relevant improvement in converter efficiency compared to the original converter design. In addition, experimental results also confirm that with the improved design the ZVT PWM converters with snubber assisted auxiliary switch can be competitive with ZVT PWM converters with constant auxiliary voltage source (True PWM ZVS pole).


2016 ◽  
Vol 24 ◽  
pp. 1742-1749 ◽  
Author(s):  
Roshni Maria George ◽  
Manoj Kumar Kini

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