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E.H.W. Chan  - - - 
Top co-authors See all
E.H.W. Chan

231 shared publications

Building and Real Estate Department, The Hong Kong Polytechnic University, Hong Kong, China

Fan Ke

194 shared publications

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P. R. China

Pengpeng Xu

39 shared publications

Lu’an Center for Disease Control and Prevention, Lu’an, People’s Republic of China

Esther H. K. Yung

27 shared publications

Building and Real Estate Department, The Hong Kong Polytechnic University, Hong Kong, China

Patrick T. I. Lam

26 shared publications

The Hong Kong Polytechnic University

Publication Record
Distribution of Articles published per year 
(1977 - 2018)
Total number of journals
published in
Publications See all
Article 0 Reads 0 Citations Hybrid Input-Output Analysis of Embodied Carbon and Construction Cost Differences between New-Build and Refurbished Proj... Craig Langston, Edwin H. W. Chan, Esther H. K. Yung Published: 10 September 2018
Sustainability, doi: 10.3390/su10093229
DOI See at publisher website ABS Show/hide abstract
Refurbishing buildings helps reduce waste, and limiting the amount of embodied carbon in buildings helps minimize the damaging impacts of climate change through lower CO2 emissions. The analysis of embodied carbon is based on the concept of life cycle assessment (LCA). LCA is a systematic tool to evaluate the environmental impacts of a product, technology, or service through all stages of its life cycle. This study investigates the embodied carbon footprint of both new-build and refurbished buildings to determine the embodied carbon profile and its relationship to both embodied energy and construction cost. It recognizes that changes in the fuel mix for electricity generation play an important role in embodied carbon impacts in different countries. The empirical findings for Hong Kong suggest that mean embodied carbon for refurbished buildings is 33–39% lower than new-build projects, and the cost for refurbished buildings is 22–50% lower than new-build projects (per square meter of floor area). Embodied carbon ranges from 645–1059 kgCO2e/m2 for new-build and 294–655 kgCO2e/m2 for refurbished projects, which is in keeping with other studies outside Hong Kong. However, values of embodied carbon and cost for refurbished projects in this study have a higher coefficient of variation than their new-build counterparts. It is argued that it is preferable to estimate embodied energy and then convert to embodied carbon (rather than estimate embodied carbon directly), as carbon is both time and location specific. A very strong linear relationship is also observed between embodied energy and construction cost that can be used to predict the former, given the latter. This study provides a framework whereby comparisons can be made between new-build and refurbished projects on the basis of embodied carbon and related construction cost differentials into the future, helping to make informed decisions about which strategy to pursue.
Article 0 Reads 1 Citation Transaction costs (TCs) in green building (GB) incentive schemes: Gross Floor Area (GFA) Concession Scheme in Hong Kong Ke Fan, Edwin H.W. Chan, Queena K. Qian Published: 01 August 2018
Energy Policy, doi: 10.1016/j.enpol.2018.04.054
DOI See at publisher website
Article 0 Reads 0 Citations Evolving institutions to tackle asymmetrical information problems in the housing market: A case study on ‘shrinkage’ of ... Soei Y.T. Ma, Edwin H.W. Chan, Lennon H.T. Choy Published: 01 May 2018
Habitat International, doi: 10.1016/j.habitatint.2018.03.009
DOI See at publisher website ABS Show/hide abstract
The phenomenon of floor area ‘shrinkage’ of newly completed units has long been a hot debate issue in Hong Kong's housing market. Prior to the enactment of the Residential Properties (First-hand Sales) Ordinance in April 2013, news reports had revealed that the actual useable areas of some presales housing units only accounted for 50% of the gross floor areas proclaimed in the sales brochures. Notwithstanding the alarming situation, ‘shrinkage’ of flat size is, in fact, a lawful act in Hong Kong. Akerlof (1970) suggests that under information asymmetry, lemons tend to crowd out non-lemons. This study attempts to investigate whether an adverse selection process is taking place in Hong Kong's housing market with reference to the shrinkage phenomenon. To measure area shrinkage, 13 private mass housing developments located on the Hong Kong Island were chosen, and a total number of 16,946 flats, were involved. This paper shows that the market is full of lemons due to the delay in responses of the law governing the sales of first-hand properties. We found that the carpet areas of the selected housing developments had fallen short of between 23% and 49% of the proclaimed gross floor area, as stated in the sales brochures. Analyzing a total number of 55,227 transactions between 1991 and 2013 of the subject premises, it shows that the turnover rates of units with the highest shrinkage ratios are about 45% more than those with the smallest shrinkage ratios. ANOVA tests have been carried out and illustrated that there are significant variations between each tenth percentile of the flats in accordance to the flat shrinkage ratios. This paper concludes with a discussion of the evolution of institutions in Hong Kong's housing market to tackle the lemon problems. Attention has been placed on the effects of mandatory, voluntary and third party information disclosure. The lessons learnt in Hong Kong will shed light on policies and legislations for the fast expanding housing markets in developing countries, especially those densely populated Asian cities undergoing rapid urbanization.
Article 1 Read 1 Citation Lhasa: Urbanising China in the frontier regions Tingting Chen, Wei Lang, Edwin Chan, Conrad H. Philipp Published: 01 April 2018
Cities, doi: 10.1016/j.cities.2017.12.009
DOI See at publisher website
Article 0 Reads 3 Citations Compressing and Swelling To Study the Structure of Extremely Soft Bottlebrush Networks Prepared by ROMP Joel M. Sarapas, Edwin P. Chan, Emma M. Rettner, Kathryn L. ... Published: 14 March 2018
Macromolecules, doi: 10.1021/acs.macromol.8b00018
DOI See at publisher website
Article 1 Read 0 Citations A peptidylic inhibitor for neutralizing expanded CAG RNA-induced nucleolar stress in polyglutamine diseases Qian Zhang, Zhefan Stephen Chen, Ying An, Haizhen Liu, Yongh... Published: 02 January 2018
RNA, doi: 10.1261/rna.062703.117
DOI See at publisher website PubMed View at PubMed ABS Show/hide abstract
Polyglutamine (polyQ) diseases are a set of progressive neurodegenerative disorders ascribed by the expression of both expanded CAG RNA and misfolded polyQ protein. We previously reported that the direct interaction between expanded CAG RNA and nucleolar protein nucleolin (NCL) leads to impediment of pre-ribosomal RNA (pre-rRNA) transcription, and eventually triggers nucleolar stress-induced apoptosis in polyQ diseases. Here, we report a 21-amino acid peptide, named beta-structured inhibitor for neurodegenerative disease (BIND), effectively suppresses expanded CAG RNA toxicity. When administrated to cell model, BIND potently inhibited expanded CAG RNA-induced cell death with an IC50 value of ~0.7 µM. We showed that Glu2, Lys13, Gly14, Ile18, Glu19 and Phe20 of BIND are essential for its function. BIND treatment restored the subcellular localization of nucleolar marker protein and the expression level of pre-45s rRNA. Our isothermal titration calorimetry analysis demonstrates that BIND suppresses nucleolar stress via a direct interaction with CAG RNA in a length preference manner. The mean binding constant (KD) of BIND to SCA2CAG22/42/55/72 RNA is 17.28, 5.60, 4.83 and 0.66 µM respectively. In vivo, BIND ameliorates eye degeneration, climbing defect and extends lifespan of Drosophila solely expressed expanded CAG RNA. It could also suppress neurodegeneration in diverse polyQ disease models in vivo and in vitro without eliciting any observed cytotoxicity. Collectively, BIND is considered as an effective inhibitor targeting expanded CAG RNA toxicity in polyQ diseases.