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SEHS學者著作

書籍

This handbook, which integrates research and practice of public health in the community, aims to help achieve the shared goal of healthier communities and quality of life for residents. This handbook should be a very useful resource for healthcare professionals and government bodies in the planning of initiatives to improve population health, prevent chronic diseases, control infectious diseases, and prepare for natural disasters.

The Routledge Handbook of Public Health and the Community (2021)

編輯:方玉輝醫生、黃至生教授

這本手冊整合了社區公共衛生的研究和實踐,旨在協助達到更健康的社區和提升居民生活質素的共同目標。這本手冊是醫護專業人員和政府機構為改善人口健康、預防慢性疾病、控制傳染病,以及防範自然災害制訂相應措施時非常實用。
Clinical Practice in General Practice (2020)

全科醫學實踐教程 (2020)

編輯:方玉輝醫生、陳子林

本書由科技、工程及健康學部副主任及實務教授(健康學)方玉輝醫生與來自香港、北京、廣州、惠州及西安的專家和學者共同編撰,藉此推進全科醫學實踐發展,貫徹國家落實「健康中國」的策略。同時,本著作亦可供全科醫生培訓、科研教學,以及臨床參考使用。
全民戰疫冠狀病毒 COVID-19 (2020)

全民戰疫冠狀病毒 COVID-19 (2020)

編輯:方玉輝醫生、趙長成醫生

本書由科技、工程及健康學部實務教授(健康學)及學部副主任方玉輝醫生和另一學者合編,結集時下冠狀病毒的健康資訊,以醫學角度逐一剖析,資料豐富,內容深入淺出,為社區和市民提供抗疫指引。
Primary Care Revisited : Interdisciplinary Perspectives for a New Era (2020)

Primary Care Revisited: Interdisciplinary Perspectives for a New Era (2020)

作者:趙長成醫生、方玉輝醫生

本書由科技、工程及健康學部副主任方玉輝醫生、高級講師羅天昇博士和另一學者合編,為從業者和學者全面概述社區醫療保健知識和服務模式。
兒童急症疾病及意外家庭應急手冊 (2018)

兒童急症疾病及意外家庭應急手冊 (2018)

作者:趙長成醫生、方玉輝醫生

針對兒童患上急性病、常見病,或遇到意外或創傷,包括發高燒、腹瀉、水痘、哮喘、觸電及溺水等逾五十種情況,本書介紹了相關的處理方法及步驟。
3G圓滿人生2:退休後的幸福 (2018)

3G圓滿人生2:退休後的幸福 (2018)

編輯:蕭孫郁標女士 BBS、方玉輝醫生

本書由善寧會的「3G圓滿人生輔工課程」內容輯錄而成,在身、心、社、靈等老年問題上提供正向知識,並以3G(Do Good, Feel Good, Look Good)為理念,引導讀者學習認識、接受及迎接耆年。
Sustainable Health and Long-term Care Solutions for an Aging Population (2017)

Sustainable Health and Long-term Care Solutions for an Aging Population (2017)

編輯:方玉輝醫生、吳偉昌博士、阮博文教授

這書為醫護成本及老人醫護融資相關的最新學術研究議題,提供了重要的參考資訊。此書涵蓋服務提供者評核,企業社會責任及數據管理課題,促進醫護服務創新規劃和發展相關的研究工作。
Target Cost Contracting Strategy in Construction – Principles, Practices and Case Studies (2017)

Target Cost Contracting Strategy in Construction – Principles, Practices and Case Studies (2017)

作者:陳煒明博士營造師、陳慶麟博士測量師

本書旨在介紹目標價合約策略的基本原則及可行性,並輔以簡短案例作說明。此書綜合了學術界的研究結果與業界的實際案例,為大專生及業內人士提供了豐富實用的資訊。
Calculus Done Right (2016)

Calculus Done Right (2016)

作者:盧靜安博士麥棨朗博士

本書旨在幫助同學鞏固微積分概念及熟習相關的運算技巧,書中提供不同的答題範例,方便教師使用。每一單元均包含大量由淺入深的練習,並針對主要的數學定義及定理提供溫習筆記,同時解構同學的常犯錯誤和誤解。

期刊論文

國際期刊論文選集

刊登年份 教員 期刊論文
2021 Asim Muhammad博士 Riaz, F., Qyyum, M.A., Bokhari, A., Klemeš, J.J., Usman, M., Asim, M.,  Awan, M.R., Imran, M. & Lee, M. (2021). Design and Energy Analysis of a Solar Desiccant Evaporative Cooling System with Built-In Daily Energy Storage. Energies, 14, 2429. 
方玉輝醫生
趙宏健博士
陳鳳鳴博士
Fong, B.Y.F., Chiu, W. K., Chan, W.F.M. & Lam, T.Y. (2021).  A Review Study of a Green Diet and Healthy Ageing. International Journal of Environmental Research and Public Health, 18(15), 8024.
武陽博士
吳偉昌博士
Wu, A. Y, Ng, A. W., Yu, Z., Huang, J., Meng, K., Dong, Z.Y. (2021) "A review of evolutionary policy incentives for sustainable development of electric vehicles in China: Strategic implications ", Energy Policy, Vol. 148, Part B, 111983.
2020 陳凱萱博士 Cao, H., Seto, S. W., Bhyyan, D. J., Chan, H. H. & Song, W. (2020). Effects of Thrombin on the Neurovascular Unit in Cerebral Ischemia. Cellular and Molecular Neurobiology.
趙宏健博士 Chiu, W. K. (2020). Implications for the Use of PowerPoint, Classroom Response Systems, Teams, and Whiteboard to Enhance Online Teaching of Chemistry Subjects in Community College. Journal of Chemical Education, 97(9), 3135-3139.
方玉輝醫生 Kim, J., Chan, R. H. W., Leung, K. L., Chung, R. Y., Fong, B. Y. F., Sumerlin, T., Siu, S., & Lee, J. J. (2020). Second-hand harms of alcohol use in urban Chinese university students: A study from Hong Kong. European Journal of Public Health, 30(5).
方玉輝醫生
羅天昇博士


 
Fong, B.Y.F., Wong, M.C.S., Law, V.T.S., Lo, M.F., Ng, T.K.C., Yee, H.H.L., Leung, T.C.H., Ho, P.W.T. (2020), “Relationships between Physical and Social Behavioural Changes and the Mental Status of Homebound Residents in Hong Kong during the COVID-19 Pandemic”, International Journal of Environmental Research and Public Health, 17, 6653.
何維東博士
余富榮博士
Ho, W.T., & Yu, F.W. (2020). Determinants of low energy performance in a multi-chiller system serving an educational premise, International Journal of Refrigeration, 114, 47-53.
Ho, W.T., & Yu, F.W. (2020). Improved model and optimization for the energy performance of chiller system with diverse component staging, Energy, 217, 119376.
梁振華教授 Wei, Z.L., Zhen, H.S., Leung, C.W., Cheung, C.S., & Huang, Z.H. (2020). Effects of H2 addition on the formation and emissions of CO/NO2/NOx in the laminar premixed biogas-hydrogen flame undergoing the flame-wall interaction, Fuel, 259, 116257.
Zhen, H.S., Wang, Z.W., Liu, X.Y., Wei, Z.L., Huang, Z.H., & Leung, C.W. (2020). An experimental study on the effect of DC electric field on impinging flame, Fuel, 274, 117846.
Zhen, H.S., Zhang, T.Y., Wei, Z.L., Chen, Z.B., Huang, Z.H., & Leung, C.W. (2020). An experimental examination of the role of turbulence on flame impingement heat transfer, Fuel, 268, 117329.
梁善軍博士 Chen, H. Z., Liu, T., Luan, H. Y., Liu, R. J., Wang, X. Y., Zhu, X. F., Li, Y. B., Gu, Z. M., Liang, S. J., Gao, H. and Lu, L. (2020). Revealing the missing dimension at an exceptional point. Nature Physics, 16(5), 571–578.
Liu T., Ma G.C., Liang S.J., Gao H., Gu Z.M., An S.W., & Zhu J. (2020). Single-sided acoustic beam splitting based on parity-time symmetry, Physical Review B, 102(1).
吳詠雯博士 Ng, W. M., & Cheung, K. (2020). A feasibility study of a WhatsApp-delivered Transtheoretical Model-based intervention to promote healthy eating habits for firefighters in Hong Kong: a cluster randomized controlled trial. Trials, 21(1), 518.
吳新培博士 Yu, A., Yick, K.L., Ng, S.P., Yip, J. & Chan, Y.F. (2020). A study of using a Simple 2D Image Analysis Method to Monitor the Surface Area of Hypertrophic Scars on Hand during Pressure Therapy, Burns, 46(7), 1548-1555.
Huang, M., Yick, K.L., Ng, S.P., Yip, J. & Cheung, R.T.H. (2020). The Effect of Support Surface and Footwear Condition on Postural Sway and Lower Limb Muscle Action of the Older Women, PLoS ONE, 5(6).
Kwan, M.Y., Yick, K. L., Chow, L., Yu, A., Ng, S.P., & Yip, J. (2020). Impact of Postural Variation on Hand Measurements: Three-Dimensional Anatomical Analysis, Human Factors.
唐慶恩博士,
吳嘉慧博士
Tong, H.Y., & Ng, K.W. (2020).  A bottom-up clustering approach to identify bus driving patterns and to develop bus driving cycles for Hong Kong. Environmental Science and Pollution Research, 28, 14343–14357.
張浩博士 Li, Z., Zhang, H., Wen, C. Y., Yang, A. S., & Juan, Y. H. (2020). Effects of frontal area density on outdoor thermal comfort and air quality. Building and Environment, 107028.
Li, Z., Zhang, H., Wen, C. Y., Yang, A. S., & Juan, Y. H. (2020). Effects of height-asymmetric street canyon configurations on outdoor air temperature and air quality. Building and Environment, 183, 107195.
Li, Z., Ming, T., Liu, S., Peng, C., de Richter, R., Li, W., Zhang, H., & Wen, C.Y. (2020). Review on pollutant dispersion in urban areas-part A: Effects of mechanical factors and urban morphology. Building and Environment, 107534.
2019 陳鳯鳴博士 Yip, C., Chan, W., & Fielding, R. (2019). The Associations of Fruit and Vegetable Intakes with Burden of Diseases: A Systematic Review of Meta-Analyses. Journal of The Academy of Nutrition and Dietetics, 119(3), 464-481.
邵漢新博士 Chiu, H. (2019). Dataset of mobile learning effectiveness on learning Computer Programming in Community College. Data in Brief, 26, 104525.
梁振華教授 Wei, Z. L., Zhen, H. S., Fu, J., Leung, C. W., Cheung, C. S., & Huang, Z. H. (2019). Experimental and numerical study on the laminar burning velocity of hydrogen enriched biogas mixture. International Journal of Hydrogen Energy, 44(39), 22240-22249.
梁嘉誠博士 Leung, W., Shi, S., & Chow, W. (2019). Impacts of user interactions on trust development in C2C social commerce. Internet Research, 30(1), 335-356.
梁善軍博士 Liang, S. J., Liu, T., Chen, F., & Zhu, J. (2019). Theoretical and experimental study of gradient-helicoid metamaterial. Journal of Sound and Vibration, 442, 482-496.
Liu, T., Chen, F., Liang, S. J., Gao, H., & Zhu, J. (2019). Subwavelength sound focusing and imaging via gradient metasurface-enabled spoof surface acoustic wave modulation. Physical Review Applied, 11(3), 034061.
吳新培博士 Yu, A., Yick, K. L., Ng, S. P., & Yip, J. (2019). Case study on the effects of fit and material of sports gloves on hand performance. Applied Ergonomics, 75, 17-26.
Li, P. L., Yick, K. L., Ng, S. P., & Yip, J. (2019). Influence of textured indoor footwear on posture stability of older women based on center-of-pressure measurements. Human factors, 61(8), 1247-1260.
Yick, K .L., Tang, K. P. M., Li, P. L., Yu, A., Yip, J., & Ng, S. P. (2019). Instrumental evaluation of dry heat loss of footwear under different activity levels. IEEE access, 7, 65319-65331.
唐慶恩博士 Tong, H. Y. (2019). Development of a driving cycle for a supercapacitor electric bus route in Hong Kong. Sustainable Cities and Society, 48, 101588.
余富榮博士 Yu, F. W., & Ho, W. T. (2019). Analysis of chiller system performance with different component combinations. Applied Thermal Engineering, 154, 699-710.
Yu, F. W., & Ho, W. T. (2019). Assessing operating statuses for chiller system with Cox regression. International Journal of Refrigeration, 98, 182-193.
Yu, F. W., & Ho, W. (2019). Load allocation improvement for chiller system in an institutional building using logistic regression. Energy & Buildings, 201, 10-18.
周全博士、
梁振華教授
Zhou, Q., Cheung, C., Leung, C. W., Li, X., & Huang, Z. (2019). Effects of diluents on laminar burning characteristics of bio-syngas at elevated pressure. Fuel, 248, 8-15.
Zhou, Q., Cheung, C. S., Leung, C. W., Li, X.T., Li, X.J., & Huang, Z.H. (2019). Effects of fuel composition and initial pressure on laminar flame speed of H2/CO/CH4 bio-syngas. Fuel, 238, 149-158.
2018 陳凱萱博士 Kam, C.S., & Chan, G.H.H. (2018). Examination of the Validity of Instructed Response Items in Identifying Careless Respondents. Personality and Individual Differences, 129, 83-87.
2017 梁振華教授 Wei, Z. L., Zhen, H. S., Leung, C. W., Cheung, C. S., & Huang, Z. H. (2017). Experimental and numerical study on the emission characteristics of laminar premixed biogas-hydrogen impinging flame. Fuel, 195, 1-11.  
Wei, Z. L., Zhen, H. S., Leung, C. W., Cheung, C. S., & Huang, Z. H. (2017). Single-valued prediction of markers on heat release rate for laminar premixed biogas-hydrogen and methane-hydrogen flames. Energy, 133, 35-45.
余富榮博士 Yu, F. W., Ho. W. T., Chan, K. T., & Sit, R. K. Y.  (2017). Critique of operating variables importance on chiller energy performance using random forest. Energy and Buildings, 139, 653-664.
Yu, F. W., Ho. W. T., Chan, K. T., Sit, R. K. Y., & Yang J. (2017). Economic analysis of air-cooled chiller with advanced heat rejection. International Journal of Refrigeration, 73, 54-64.
2016 梁振華教授 Zhen, H. S., Leung, C. W., Cheung, C. S., & Huang, Z. H. (2016). Combustion characteristics and heating performance of stoichiometric biogas-hydrogen-air flame. International Journal of Heat and Mass Transfer, 92, 807-814.
Wei, Z. L., Leung, C. W., Cheung, C. S., & Huang, Z. H. (2016). Effects of equivalence ratio, H2 and CO2 addition on the heat release characteristics of premixed laminar biogas-hydrogen flame. International Journal of Hydrogen Energy, 41(15), 6567-6580.  
Miao, J., Leung, C. W., Cheung, C. S., Huang, Z. H., & Wu, J. (2016). Effect of H2 addition on OH distribution of LPG/air circumferential inverse diffusion flame. International Journal of Hydrogen Energy, 41(22), 9653-9663. 
Wei, Z. L., Leung, C. W., Cheung, C. S., & Huang, Z. H. (2016). Effects of H2 and CO2 addition on the heat transfer characteristics of laminar premixed biogas-hydrogen Bunsen flame. International Journal of Heat and Mass Transfer, 98, 359-366.  
Fu, J., Leung, C. W., Huang, Z., Zhang, Y., & Cheung, C. S. (2016). Systematic investigation of premixed methane/air turbulent impinging flames. Experimental Thermal and Fluid Science, 70, 335-340. 
Zhen, H. S., Wei, Z. L., Leung, C. W., Cheung, C. S., & Huang, Z. H. (2016). Emission of impinging biogas/air premixed flame with hydrogen enrichment. International Journal of Hydrogen Energy, 41(3), 2087-2095. 
Zhou, J. H., Cheung, C. S., Zhao, W.Z., & Leung, C. W. (2016). Diesel-hydrogen dual-fuel combustion and its impact on unregulated gaseous emissions and particulate emissions under different engine loads and engine speeds. Energy, 94, 110-123.  
呂琪博士 Chen L., Niu, D., Lee, C.H., Yao, Y., Lui, K., Ho, K. M., & Li, P. (2016). Amphiphilic Core-Shell Nanocomposite Particles for Enhanced Magnetic Resonance Imaging. Particles and Particle Systems Characterization, 33, 756-763.
吳新培博士 Yu, A., Yick, K. L., Ng, S. P., Yip, J., & Chan, Y .F. (2016). Numerical Simulation of Pressure Therapy Glove by using Finite Element Method, Burns, 42, 141-151.
Yick, K. L., Tse, L. T., Lo, W. T., Ng, S. P., & Yip J. (2016). Effects of Indoor Slippers on Plantar Pressure and Lower Limb EMG Activity in Older Women. Applied Ergonomics, 56, 153-159.
2015 梁振華教授 Tse, H., Leung, C. W., & Cheung, C. S. (2015). Investigation on the combustion characteristics and particulate emissions from a diesel engine fueled with diesel-biodiesel-ethanol blends. Energy, 83, 343-350. 
Wang, J. H., Wei, Z. L., Leung, C. W., Cheung, C. S., & Huang, Z. H. (2015). Effects of stretch and preferential diffusion on tip opening of laminar premixed Bunsen flames of syngas/air mixtures. Fuel, 148, 1-3.
Wei, Z. L., Zhen, H. S., Leung, C. W., Cheung, C. S., & Huang, Z. H. (2015). Heat transfer characteristics and the optimized heating distance of laminar premixed biogas-hydrogen Bunsen flame impinging on a flat surface. International Journal of Hydrogen Energy, 40(45), 15723-15731.
Zhou, J. H., Cheung, C. S., Zhao, W. Z., Ning, Z., & Leung, C. W. (2015). Impact of intake hydrogen enrichment on morphology, structure and oxidation reactivity of diesel particulate. Applied Energy, 160, 442-455.
呂琪博士 Lui, K., Sheikh, S.M., & Huang, Y. (2015). Regulation of p53 oligomerization by Ras superfamily protein RBEL1A. Genes and Cancer, 1-10.
Zhang, M., Qiu, Q., Li, Z., Sachdeva, M., Min, H., Cardona, D.M., DeLaney, T.F., Han, T., Ma, Y., Luo, L., Ilkayeva, O., Lui, K., Nichols, A.G., Newgard, C.B., Kastan, M.B., Rathmell, J.C., Dewhirst, M.W., & Kirsch, D.G. (2015).HIF-1 alpha regulates the response of primary sarcomas to radiation therapy through a cell autonomous mechanism. Radiation Research, 183, 594-609.
吳新培博士 Yu, A., Yick, K. L., Ng, S. P., & Yip, J. (2015). The effect of pressure and fabrication of pressure therapy gloves on hand sensitivity and dexterity. Journal of Burn Care and Research, 36 (3), 162-175.
Kan, C. W., Kwong, C. H., & Ng, S. P. (2015). Surface modification of polyester synthetic leather with tetramethylsilane by atmospheric pressure plasma. Applied Surface Science, 346, 270-277.
余富榮博士 Yu, F. W., Chan, K. T., Yang, J., & Sit, R. K. Y. (2015). Comparative study on the energy performance of chiller system in an institutional building with stochastic frontier analysis. Energy and Buildings, 89, 206-212.
2014 陳慶麟博士測量師 Chan, D. W. M., Chan, J. H .L., & Ma, T. (2014). Developing a Fuzzy Risk Assessment Model for Guaranteed Maximum Price and Target Cost Contracts in South Australia. Facilities, 32(11/12), 624-646.
梁振華教授 Zhen, H. S., Leung, C. W., & Cheung, C.S. (2014). A comparison of the heat transfer behaviors of biogas-H2 diffusion and premixed flames. International Journal of Hydrogen Energy, 39(2), 1137-1144.
Miao, J., Leung, C. W., & Cheung, C. S. (2014). Effect of hydrogen percentage and air jet Reynolds number on fuel lean flame stability of LPG-fired inverse diffusion flame with hydrogen enrichment. International Journal of Hydrogen Energy, 39(1), 602-609.
Zhen, H. S., Leung, C. W., & Wong, T. T. (2014). Improvement of domestic cooking flames by utilizing swirling flows. Fuel, 119, 153-156.
Miao, J., Leung, C. W., Huang, Z. H., Cheung, C. S., Yu, H. B., & Xie, Y. L. (2014). Laminar burning velocities, Markstein lengths, and flame thickness of liquefied petroleum gas with hydrogen enrichment. International Journal of Hydrogen Energy, 39(24), 13020-13030.
Zhou, J. H., Cheung, C. S., & Leung, C. W. (2014). Combustion, performance and emissions of a diesel engine with H2, CH4 and H2-CH4 addition. International Journal of Hydrogen Energy, 3, 4611-4621. 
Zhou, J. H., Cheung, C. S., & Leung, C. W. (2014). Combustion, performance, regulated and unregulated emissions of a diesel engine with hydrogen addition. Applied Energy, 126, 1-12. 
麥棨朗博士 Mak, K. L., & Hung, W. T. (2014). Statistical tyre/road noise modeling in Hong Kong on friction course. Applied Acoustics, 76, 24-27.
吳新培博士 Kan, C. W., Lam, C. F. Chan, C. K., & Ng, S. P. (2014). Using Atmospheric Pressure Treatment for Treating Grey Cotton Fabric. Carbohydrate Polymers, 102 (1), 167-173.
武陽博士 Wu, Y., Yu, Z., Ngan, H., & Tan, Z. (2014). Sustaining China׳s Electricity Market Development. Energy Policy, 73, 30-37.
2013 梁振華教授 Zhen, H. S., Leung, C. W., & Cheung, C. S. (2013). Effects of hydrogen addition on the characteristics of a biogas diffusion flame. International Journal of Hydrogen Energy, 38(16), 6874-6881. 
Dong, L. L., Cheung, C. S., & Leung, C. W. (2013). Characterization of impingement region from an impinging inverse diffusion flame jet. International Journal of Heat and Mass Transfer, 56 (1-2), 360-369.
Zhou, J. H., Cheung, C. S., & Leung, C. W. (2013). Combustion, performance and emissions of ULSD, PME and B50 fueled multi-cylinder diesel engine with naturally aspirated hydrogen. International Journal of Hydrogen Energy, 38, 14837-14848.
Dong, L .L., Cheung, C. S., & Leung, C. W. (2013). Heat transfer optimization of an impinging port-array inverse diffusion flame jet. Energy, 49(1), 182-192.
Zhen, H. S., Cheung, C. S., Leung, C. W., & Li, H. B. (2013). Thermal and heat transfer behaviours of an inverse diffusion flame with induced swirl. Fuel, 103, 212-219.
呂琪博士 Lui, K., Huang, Y., Sheikh, S.M., An, J., Montalbano, J., Shi, J., & Corcoran, C. (2013). Negative regulator of p53 by Ras superfamily protein RBEL1A. Journal of Cell Science, 126, 2436-2445.
Sun, H., Sun, W., Lucchesi, C., Sheikh, S. M., Huang, Y., Jiang, L. Y., Luo, X., Jin, W., He, Q., An, J., Lui, K., Shi, J., & Rong, R. (2013). Potential tumor-suppressive role of monoglyceride lipase in human colorectal cancer. Oncogene, 32, 234-241.
吳新培博士 Chen, L. H., Ng, S. P., Yu, W., Zhou, J., & Wan, K. W. (2013). A study of breast motion using non-linear dynamic FE analysis. Ergonomics, 56(5), 868-878.
Yu, A., Yick, K. L., Ng, S. P., & Yip, J. (2013). 2D and 3D anatomical analyses of hand dimensions for custom-made gloves. Applied Ergonomics, 44(3), 381-392.
Du, F. P., Ye, E. Z., Tang, C. Y., Ng, S. P., Zhou, X. P., & Xie, X. L. (2013).  Microstructure and shape memory effect of acidic carbon nanotubes reinforced polyvinyl alcohol nanocomposites. Journal of Applied Polymer Science, 129(3), 1299-1305.
武陽博士 Tan, Z., Ngan, H., Wu, Y., Zhang, H., Song, Y., & Yu, C. (2013). Potential and policy issues for sustainable development of wind power in China. Journal of Modern Power Systems and Clean Energy, 1(3), 204-215.
余富榮博士 Yu, F. W., & Chan, K. T. (2013). Energy management of chiller systems by data envelopment analysis. Facilities, 31(3), 106-118.
Yu, F. W., Chan, K. T., Yang, J., & Sit, R. K. Y. (2013). Energy simulation of sustainable air-cooled chiller system for commercial buildings under climate change. Energy and Buildings, 64, 162-171.
Yu, F. W., & Chan, K. T. (2013). Improved energy management of chiller systems with data envelopment analysis. Applied Thermal Engineering, 50, 309-317.