Sustainable urbanism: towards a framework for quality and optimal density? Tập 2 - Trang 1-13 - 2016
Steffen Lehmann
The question of density is closely connected to urbanization and how our cities may evolve in the future. Density and compactness are two closely related but different criteria, both relevant for sustainable urban development and the transformation of cities; however, their relationship is not always well understood. While a high degree of compactness is desirable, too much density can be detrimen...... hiện toàn bộ The need for UN climate change policy reformation Tập 2 Số 1 - Trang 1-13 - 2016
Bannaga, Sharaf Eldin Ibrahim
This paper endeavours to understand the climate change phenomenon and identify measures taken to contain it. It discusses global warming causes and consequences and assesses effectiveness of the United Nations (UN) polices following failure of the Kyoto Protocol to reduce greenhouse gas emissions. In pursuing this course of action, this paper utilizes data collected from East Africa region. Key is...... hiện toàn bộ CFD simulation and validation of self-cleaning on solar panel surfaces with superhydrophilic coating Tập 1 - Trang 1-15 - 2015
Jin Hu, Nicolas Bodard, Osmann Sari, Saffa Riffat
Solar panel conversion efficiency, typically in the twenty percent range, is reduced by dust, grime, pollen, and other particulates that accumulate on the solar panel. Cleaning dirty panels to maintain peak efficiency, which is especially hard to do for large solar-panel arrays. To develop a transparent, anti-soiling Nano-TiO2 coating to minimize the need for occasional cleaning is the purpose of ...... hiện toàn bộ Photocatalytic degradation of high ammonia concentration wastewater by TiO2 Tập 1 - Trang 1-12 - 2015
Xue Gong, Haifeng Wang, Chun Yang, Quan Li, Xiangping Chen, Jin Hu
This study explored the effect on photocatalytic degradation in aqueous solution with high- concentration ammonia where immobilized TiO2 on glass beads was employed as the photocatalyst. TiO2 film was prepared via deep coating TiO2 in a sol–gel system of tetrabutyl titanate precursor and calcinating it at the temperature between 400 to 650 °C. Several crucial factors affecting on the rate of remov...... hiện toàn bộ Development of Low-cost indigenous filtration system for urban sullage: assessment of reusability Tập 2 Số 1 - Trang 1-8 - 2016
Sikder, Tajuddin, Hossain, Zakir, Pingki, Priangka Bhattacharya, Biswas, Jussi Dayna, Rahman, Mostafizur, Hossain, Shakhaoat, Saito, Takeshi, Kurasaki, Masaaki
Treated sullage water could be the answer to urban water scarcity. In this study, urban sullage water was subjected to various tests to determine a number of physiochemical parameters, heavy metal content and coliform count. Obtained results were compared with the Dhaka Water and Sewerage Authority (DWASA) water samples. The sullage water was then treated using a proposed filtration system with in...... hiện toàn bộ