311 research outputs found
Dyslexia in Hong Kong : challenges and opportunities
No full textAuthor name used in this publication: Cecilia W. P. Li-TsangAuthor name used in this publication: Pui Yee Grace Lung2011-2012 > Academic research: not refereed > Chapter in an edited book (author)Version of RecordPublishedC
WPC 101: Ethics Curriculum
No full textabstract: At a time when the national and world community is viewing collegiate business programs as complicit in many recent business scandals rooted in ethical violations and breaches of trust, improving ethics education is a high priority. Review of current research on techniques for effectively teaching ethics highlights the importance of incorporating conversational learning, decision models, and relevant, personalized case discussions into undergraduate ethics lessons. Focusing exclusively on ethics education in the first-year business seminar WPC 101, we evaluated the current ethics/academic integrity module and found it to be lacking many research-supported techniques. To develop an updated curriculum, we first used the EthicsGame Ethical Lens Inventory in a survey of 114 W. P. Carey students to explore whether a connection between students' majors and primary ethical lenses would demonstrate the effectiveness of designing different, tailored ethics curricula for students in each major. Regression analysis of the survey responses indicated that this research was inconclusive for every major except for Accountancy, which already has a specific (upper-division) ethics course. This initial research stage led to the creation of a universally applicable ethics curriculum based on the Baird Decision Model. Incorporating techniques from the literature review, the new WPC 101 Academic Honesty & Ethics curriculum includes a presentation on the Baird Decision Model, a small-group discussion of a relevant ethical dilemma, and a class role play. The curriculum additionally includes detailed Facilitator Guidelines for educators. The curriculum was piloted in WPC 101 classes during Spring 2016, and we present student and facilitator feedback as well as suggestions for further research and improvement. Use of this research-backed curriculum and further study into its impact on student decision making will allow W. P. Carey to continue advancing in pursuit of training students to be effective ethical leaders
Method for producing intelligent pressure coat
No full textInventor name used in this publication: Li ZenghuipingTitle in Traditional Chinese: 一種智能壓力衣的製造方法ChinaVersion of Recor
“Scarless world or scar-less world” : expedition on new perspectives on management of post-burn hypertrophic scar
No full text2015-2016 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishedC
Method for manufacturing smart pressure monitored suits
No full textUS8386065; US8386065 B2; US8386065B2; US8,386,065; US 8,386,065 B2; 8386065; Appl. No. 12/341,499USVersion of Recor
Experimental Research on the Durability of WPC Wallboard Made of Paper-Aluminum-Plastics Wastes
No full textWaste Paper-Al-Plastic materials including Tetrapak beverage and milk boxes are used to extrude the WPC instead of normal wood fiber material in this research. As many WPC products are applied as exterior wallboard at present, the research on the durability and flame retardancy of Wood-Plastic Composites is important. In this paper, various durability influences and flame retardancy of WPC are analyzed in the laboratory conditions. Some experimental results are presented as follow: Water absorption of WPC is influenced by immersion time. After immersion of simulated acid rain solution and alkali environment, and accelerated ultraviolet radiation tests, WPC samples are observed with banding strength decrease. Nonetheless, the performances of WPC wallboard achieve the requirements of national code when it is properly provided with anticorrosion coating systems. Oxygen index of 27 indicates that WPC is inflammable material. Zinc borate (ZB) and ammonium polyphosphate (APP) are effective flame retardant for Paper-Al-Plastic WPC.</jats:p
Dual morphology (fibres and particles) cellulosic filler for WPC materials
No full textWood-plastic composites (WPC) were fabricated by using a polyethylene (PE) matrix and filling it with wood flour in the amount of 30 wt.%, and compared with the same composites with further amount of 10 wt.% of cellulosic recycled fibres added. The materials were produced by turbomixing and subsequent moulding under pressure. Mechanical properties of both WPC and WPC with cellulosic recycled fibres were evaluated through mechanical and physical-chemical tests. Tensile tests clarified that a moderate reduction is strength is observed with the bare introduction of wood flour with respect to the neat PE matrix, whilst some recovery is offered by the addition of recycled cellulose fibres. Even more promisingly, the elastic modulus of PE matrix is substantially improved by the addition of wood flour (around 8% on average) and much more so with the further addition of recycled cellulose (around 20% on average). The fracture surfaces from the tensile test were analysed by scanning electron microscope (SEM) indicating a reduction in microporosity as an effect of added cellulose. The water absorption test and the hardness measure (Shore D) were also performed. SEM analysis underlined the weak interface between both wood particle and cellulosic recycled fibres and matrix. The water absorption test showed a higher mass variation for pure WPC than WPC with cellulosic recycled fibres. The hardness measurement showed that the presence of cellulosic recycled fibres improves both superficial hardness of the composite and temperature resistance. © 2016 Author(s)
IMPROVING EMBEDDING EFFICIENCY BY INCORPORATING SDCS AND WPC
No full textEmbedding efficiency, which is defined as the average number of secret data bits embedded per one embedding change, is an important attribute directly influencing the security of steganography. Higher embedding efficiency is usually expected to get more secure steganographic method. In this paper, by incorporating two previously introduced techniques: the "sum and difference covering set" (SDCS) and the "wet paper code" (WPC), a novel double-layered embedding method is presented. As compared with the original SDCS-based steganography, the novel method can embed more bits without introducing additional embedding distortion, therefore the embedding efficiency is improved. In summary. the proposed method provides some steganographic schemes with diverse embedding rates and good embedding efficiency.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000277357000250&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Computer Science, Software EngineeringComputer Science, Theory & MethodsEngineering, Electrical & ElectronicCPCI-S(ISTP)
EVALUATION OF A REGRESSION PREDICTION MODEL FOR SURFACE ROUGHNESS OF WOOD–POLYETHYLENE COMPOSITE (WPC)
No full textMilling processing is an important way to obtain wood–polyethylene composite (WPC) end products. In order to improve the processing efficiency and surface quality of WPC and meet the practical application requirements, this paper focussed on morphology and roughness of the WPC-milled surface and studied surface quality changes under different cutting parameters and milling methods through multi-parameters milling experiments. The milling surface morphology and roughness of WPC were analyzed and measured during cut-in, cutting and cut-out sections. It also revealed the affect rule of different cutting parameters and milling methods on milled surface morphology and roughness. The results show that the milling surface roughness of WPC products with wood powder content of 70% is significantly larger than the one whose wood powder content is 60%, and defects such as holes are also relatively more. Finally, a surface roughness prediction model was established based on the mathematical regression method and its multi-factor simulation was carried out. A comparative analysis of predictive and experimental values was performed to verify the reliability of the model. It could also provide theoretical guidance and technical guarantee for high processing quality of WPC milling and cutting.</jats:p
Experimental Research on the Thermal Insulation and Flame Retardancy Performance of WPC Wallboard Made of Paper-Aluminum-Plastics Wastes
No full textAs a high technique environmental friendly material, Wood-plastic composite (WPC) material has wide range of applications and is extruded by recycled wood fiber products and wasted LDPE. Waste Paper-Al-Plastic materials including Tetrapak beverage and milk boxes are used to extrude the WPC as thermal insulation exterior wallboard instead of normal wood fiber material in the present research. In this paper, simulated thermal insulation and Oxygen index combustion test were operated at the Lab conditions. Some experimental results are presented as follow: heat transfer coefficient of 100mm thick WPC hollow wall is 0.922 W/m2•K, which is equivalent to the thermal insulation performance of a 0.35m thick fly ash aerated concrete block. Oxygen index of 27 indicates that WPC is inflammable material. Zinc borate (ZB) and ammonium polyphosphate (APP) are effective flame retardant for Paper-Al-Plastic WPC.</jats:p
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