Science & Engineering Faculty最新文献

Box-columns with combined axial compressive and torsional loading 具有轴向压缩和扭转组合载荷的箱形柱

Science & Engineering Faculty Pub Date : 2021-07-13 DOI: 10.26180/14969676.V1

M. Mahendran

引用次数: 6

E-tendering readiness in construction: an a priori model 建设中的电子投标准备:一个先验模型

Science & Engineering Faculty Pub Date : 2018-09-05 DOI: 10.1504/IJPM.2018.10014397

M. Al-Yahya, M. Skitmore, A. Bridge, M. Nepal, D. Cattell

{"title":"E-tendering readiness in construction: an a priori model","authors":"M. Al-Yahya, M. Skitmore, A. Bridge, M. Nepal, D. Cattell","doi":"10.1504/IJPM.2018.10014397","DOIUrl":"https://doi.org/10.1504/IJPM.2018.10014397","url":null,"abstract":"Purpose \u0000 \u0000To develop a conceptual model to assess the e-Tendering readiness in any construction organisation prior to implementation. \u0000 \u0000 Design/methodology/approach \u0000 \u0000This involves a review of previous e-Tendering models, the importance of e-Tendering models for the construction industry and the requirements for developing e-TRMs. \u0000 \u0000 Findings \u0000 \u0000A model contains five themes: People, Process, Work Environment, Technology and Service Providers. The e-TRM themes consist of thirteen constructs representing the basic items for e-Tendering readiness. Research limitations/implications \u0000 \u0000Ultimately, the e-TRM can be used worldwide; however, the model needs to be tested empirically for verification. \u0000 \u0000 Practical implications \u0000 \u0000To update previous IT/IS models by developing the themes that partially contribute to the research literature on traditional and electronic tendering and the body of knowledge in the construction industry. \u0000 \u0000 Originality/value \u0000 \u0000The Service Providers theme with its constructs (communication, market and technical) is proposed for the first time as a necessary support for successful e-Tendering implementation.","PeriodicalId":21486,"journal":{"name":"Science & Engineering Faculty","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86765098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Improving the efficiency of fully Bayesian optimal design of experiments using randomised quasi-Monte Carlo 利用随机拟蒙特卡罗提高实验全贝叶斯优化设计的效率

Science & Engineering Faculty Pub Date : 2018-03-01 DOI: 10.1214/16-BA1045

C. Drovandi, Minh-Ngoc Tran

引用次数: 23

Enhancement of confined air jet impingement heat transfer using perforated pin fin heat sinks 利用穿孔针翅散热器增强密闭空气射流冲击传热

Science & Engineering Faculty Pub Date : 2018-01-01 DOI: 10.1007/978-981-10-0697-5_10

Md Farhad Ismail, S. Saha

引用次数: 3

Measuring impacts and risks to the public of a privately operated toll road project by considering perspectives in cost-benefit analysis 通过考虑成本效益分析的角度来衡量私营收费公路项目对公众的影响和风险

Science & Engineering Faculty Pub Date : 2017-12-01 DOI: 10.1061/JTEPBS.0000088

Sae Chi, J. Bunker, Melissa Teo

{"title":"Measuring impacts and risks to the public of a privately operated toll road project by considering perspectives in cost-benefit analysis","authors":"Sae Chi, J. Bunker, Melissa Teo","doi":"10.1061/JTEPBS.0000088","DOIUrl":"https://doi.org/10.1061/JTEPBS.0000088","url":null,"abstract":"Decision making about transport infrastructure investment is based on the net impacts and risks to the community. The private sector is often involved in toll road projects, including various schemes to design, build, operate and/or finance the project either in a partnership with a host government, independently, or in some combination. Cost-Benefit Analysis of a privately operated toll road require careful allocations of project impacts, in order to properly reflect the net impacts and risks to the community from the host government’s perspective. This study investigates whether alternative assumptions are valid from differing perspectives, when toll roads are delivered and operated privately rather than by a host government. Treatments of tolls and other toll road project related payments are considered from different perspectives. Cost-Benefit Analysis is conducted for a synthesised toll tunnel project case by considering alternating treatments of some impacts. This leads to the exploration of analyses outcomes when the treatment of tolls differ when two perspectives of “toll as a transfer payment” and “toll as an end user cost” are considered. Various scenarios are explored including public versus private operations. The Monte Carlo simulation approach is used to account the risks of variables in the analysis. The synthesised case study revealed that, for privately operated toll roads, treating toll charges as a transfer payment, and alternatively as an end user cost, can both be valid approaches but from two perspectives. Moreover, the analysis outcomes under different perspectives are particularly helpful to make decisions on the basis of the impacts and risks solely from the perspective of the host government. The proposed methodology can examine various scenarios other than the ones examined in this study and is extremely useful in the project evaluation of privately operated toll road projects.","PeriodicalId":21486,"journal":{"name":"Science & Engineering Faculty","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81615986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Evaluating the safety climate of ethnic minority construction workers in Hong Kong 香港少数族裔建筑工人的安全环境评估

Science & Engineering Faculty Pub Date : 2017-10-01 DOI: 10.1061/(ASCE)EI.1943-5541.0000333

Albert P. C. Chan, A. Javed, Francis K. W. Wong, C. Hon, Sainan Lyu

{"title":"Evaluating the safety climate of ethnic minority construction workers in Hong Kong","authors":"Albert P. C. Chan, A. Javed, Francis K. W. Wong, C. Hon, Sainan Lyu","doi":"10.1061/(ASCE)EI.1943-5541.0000333","DOIUrl":"https://doi.org/10.1061/(ASCE)EI.1943-5541.0000333","url":null,"abstract":"The Hong Kong construction industry is facing a severe labour shortage due to an ageing workforce and a lack of new entrants, even at a time of construction boom. To improve this situation, ethnic minorities (EMs) have been attracted to join the construction industry. In many developed countries, however, some unofficial statistics show that EMs suffer higher fatality rates than their local counterparts. It is clear that the safety of ethnic minority (EM) construction workers requires more attention. The objectives of this study, therefore, were to evaluate the safety climate among EM construction workers in Hong Kong, to predict the impact of safety climate factors as they affect the likelihood of injury occurrences and to determine the relationships between safety climate and the safety performance of EM workers. A questionnaire survey was administrated to Pakistani and Nepalese construction workers in Hong Kong. The results revealed that the overall average safety climate score for both EM groups was not very high and that the Pakistani worker scores were higher than the Nepalese worker scores. EM frontline-workers scored less than EM supervisors and managers. Among seven safety climate factors, \"Workers personal involvement in safety and health (F5)\" was ranked highest and \"Perception of safety rules and regulations (F4)\", was ranked lowest. \"Risk taking behaviour and perception of work risk (F3)\" and \"Workers personal involvement in safety and health (F5)\" were identified as significant predictors of injury occurrence. Furthermore, the safety climate was significantly associated with the degree of safety participation and safety compliance. It was expected that the findings of the study would provide an insight into the level of safety climate among EM workers, enabling organizations and practitioners around the world to improve safe working among EM workers.","PeriodicalId":21486,"journal":{"name":"Science & Engineering Faculty","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81561864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 35

Simulation of dynamic behaviour of a biological wastewater treatment plant in South East Queensland, Australia using bio-win software 利用bio-win软件模拟澳大利亚昆士兰东南部的一个生物污水处理厂的动态行为

Science & Engineering Faculty Pub Date : 2017-06-15 DOI: 10.4186/EJ.2017.21.3.1

Chathurani Moragspitiya, J. Rajapakse, W. Senadeera, Imtiaj Ali

{"title":"Simulation of dynamic behaviour of a biological wastewater treatment plant in South East Queensland, Australia using bio-win software","authors":"Chathurani Moragspitiya, J. Rajapakse, W. Senadeera, Imtiaj Ali","doi":"10.4186/EJ.2017.21.3.1","DOIUrl":"https://doi.org/10.4186/EJ.2017.21.3.1","url":null,"abstract":"Wastewater treatment is the process of removing pollutants from liquid waste using physical, chemical and biological methods by converting it into an acceptable final effluent before discharging into a water body or reuse, and to safely dispose of solids generated during the treatment process. Limited parameters in Wastewater Treatment Plant (WWTP) are usually measured due to the significant cost and time involved with them. \u0000 \u0000The mathematical modelling is increasingly becoming a well-established technique among researchers as well as practicing engineers to study the behaviour of wastewater treatment process as it provides more accurate predictions within the limited time frame at a reduced cost. Therefore, this technique can be used to study the engineering design of modern water resource recovery facilities that experience in increasing demands on control of effluent quality. The research work presented here is focused on studying the dynamic (time dependent) behaviours of the wastewater treatment plant in south east Queensland, Australia using the mathematical modelling technique implemented using Bio-Win software. The model developed has been calibrated and validated based on the measured data from the WWTP. The main benefit of this research work is that the developed and validated model can be used to study the non-measured important parameters of the WWTP.","PeriodicalId":21486,"journal":{"name":"Science & Engineering Faculty","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79874719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Reduction of artefacts caused by missing ray-sum data in optical-CT imaging of implants in gel dosimeters 减少凝胶剂量计中植入物的光学ct成像中射线和数据缺失引起的伪影

Science & Engineering Faculty Pub Date : 2017-06-05 DOI: 10.1088/1742-6596/847/1/012070

A. Asena, Shaun T. Smith, T. Kairn, S. Crowe, R. Franich, J. Trapp

{"title":"Reduction of artefacts caused by missing ray-sum data in optical-CT imaging of implants in gel dosimeters","authors":"A. Asena, Shaun T. Smith, T. Kairn, S. Crowe, R. Franich, J. Trapp","doi":"10.1088/1742-6596/847/1/012070","DOIUrl":"https://doi.org/10.1088/1742-6596/847/1/012070","url":null,"abstract":"This study demonstrates the degradation in image quality, and subsequent dose evaluation inaccuracies, that are encountered when an optical-CT system reconstructs an image slice of a gel dosimeter containing an opaque implant, and evaluates the feasibility of a simple correction method to improve the accuracy of radiotherapy dose distribution measurements under these circumstances. MATLAB was used to create a number of different virtual phantoms and treatment plans along with their synthetic projections and reconstructed data sets. The results have illustrated that accurately evaluating 3D gel dose distributions in the vicinity of high-Z interfaces is not possible using the filtered back projection method, without correction, as there are serious artefacts throughout the dose volume that are induced by the missing ray-sum data. Equivalent artefacts were present in physical measurements of irradiated PAGAT gel containers when read by an optical-CT system. An interpolation correction performed prior to reconstruction via the filtered back projection algorithm has been shown to significantly improve dose evaluation accuracy to within approximately 15 mm of the opacity. With careful placement of the implant within the gel sample, and use of the linear interpolation method described in this study, there is the potential for more accurate optical CT imaging of gels containing opaque objects.","PeriodicalId":21486,"journal":{"name":"Science & Engineering Faculty","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78756247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Information literacy and informed learning: Conceptual innovations for IL research and practice futures 信息素养和知情学习:信息素养研究和实践未来的概念创新

Science & Engineering Faculty Pub Date : 2017-06-05 DOI: 10.11645/11.1.2184

C. Bruce, Andrew Demasson, H. Hughes, Mandy Lupton, E. Abdi, C. Maybee, M. Somerville, A. Mirijamdotter

{"title":"Information literacy and informed learning: Conceptual innovations for IL research and practice futures","authors":"C. Bruce, Andrew Demasson, H. Hughes, Mandy Lupton, E. Abdi, C. Maybee, M. Somerville, A. Mirijamdotter","doi":"10.11645/11.1.2184","DOIUrl":"https://doi.org/10.11645/11.1.2184","url":null,"abstract":"Our paper draws together conceptual innovations emerging from the work of a group of researchers focussed on the relational approach to information literacy, more recently labelled ‘informed learning’. Team members have been working together in various configurations for periods ranging from seven to seventeen years. Our collaborative approach continues to yield new concepts and constructs which we believe to be of value to ongoing research and practice. Some of the ideas discussed have been previouly published, while others are being put forward for the first time. All are significant in that they together form new constructs that have emerged from a focus on the relational approach to information literacy. In this paper, Christine Bruce introduces the background to this work and the contributing researchers. Then the individual authors present the key directions which they have developed and are leading, typically working with one or more of the wider network. The key ideas presented are: The expressive window for information literacy (Mandy Lupton); information experience design (Elham Sayyad Abdi); cross-contextuality and experienced identity (Andrew Demasson); informed learning design (Clarence Maybee); spaces for inclusive informed learning (Hilary Hughes); and informed systems (Mary Somerville and Anita Mirjamdotter). In each piece, authors reflect on what the idea is about, where it came from and what it might mean for research and practice.","PeriodicalId":21486,"journal":{"name":"Science & Engineering Faculty","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81626503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 36

CS2 analysis in presence of non-Gaussian background noise: Effect on traditional estimators and resilience of log-envelope indicators 非高斯背景噪声存在下的CS2分析:对传统估计量和对数包络指标弹性的影响

Science & Engineering Faculty Pub Date : 2017-06-01 DOI: 10.1016/J.YMSSP.2016.12.033

P. Borghesani, J. Antoni

引用次数: 65