Riser Stress Analysis with Finite Element Approach

This report is written with the main objective to identify the stress distribution along the riser with the inclusion of external loading conditions. This is a further study of riser stress analysis of the data generated with Bentley AutoPIPE as the data received only available in numerical values but not shown in 3-dimensional stress distribution diagram. This can be overcome with ANSYS Multiphysics as 3-dimensional stress distribution result can be generated which are shown in the chapter 4 of this report. PIPE59 element in ANSYS element library is chosen for the modelling process of this project. PIPE59 element is suitable to be practiced for modelling task related to immersed pipe. The simulation is commenced with the input data of a project located at Persian Gulf region. Through the simulation, analysis of the output on how loading conditions affect the riser stress analysis was obtained. The result which includes Von Mises stress and bending stress obtained were compared with the result generated from AutoPIPE, commercial finite element software using in pipeline design industry. This is to justify that ANSYS Multiphysics capable to produce result similar to Bentley AutoPIPE besides output the result in 3-dimensional stress distribution. Lastly, the knowledge gathered from this project can be used to perform riser stress analysis for commercial purpose

Riser Stress Analysis with Finite Element Approach

This report is written with the main objective to identify the stress distribution along the riser with the inclusion of external loading conditions. This is a further study of riser stress analysis of the data generated with Bentley AutoPIPE as the data received only available in numerical values but not shown in 3-dimensional stress distribution diagram. This can be overcome with ANSYS Multiphysics as 3-dimensional stress distribution result can be generated which are shown in the chapter 4 of this report. PIPE59 element in ANSYS element library is chosen for the modelling process of this project. PIPE59 element is suitable to be practiced for modelling task related to immersed pipe. The simulation is commenced with the input data of a project located at Persian Gulf region. Through the simulation, analysis of the output on how loading conditions affect the riser stress analysis was obtained. The result which includes Von Mises stress and bending stress obtained were compared with the result generated from AutoPIPE, commercial finite element software using in pipeline design industry. This is to justify that ANSYS Multiphysics capable to produce result similar to Bentley AutoPIPE besides output the result in 3-dimensional stress distribution. Lastly, the knowledge gathered from this project can be used to perform riser stress analysis for commercial purpose

Interactive 3D Digital Models for Anatomy and Medical Education

This chapter explores the creation and use of interactive, three-dimensional (3D), digital models for anatomy and medical education. Firstly, it looks back over the history and development of virtual 3D anatomy resources before outlining some of the current means of their creation; including photogrammetry, CT and surface scanning, and digital modelling, outlining advantages and disadvantages for each. Various means of distribution are explored, including; virtual learning environments, websites, interactive PDF’s, virtual and augmented reality, bespoke applications, and 3D printing, with a particular focus on the level of interactivity each method offers. Finally, and perhaps most importantly, the use of such models for education is discussed. Questions addressed include; How can such models best be used to enhance student learning? How can they be used in the classroom? How can they be used for selfdirected study? As well as exploring if they could one day replace human specimens, and how they complement the rise of online and e-learning

Optimisation and modelling of supercritical CO2 extraction process of carotenoids from carrot peels

This work aimed to assess and optimise the extraction of carotenoids from carrot peels by supercritical CO2 (S-CO2), utilising ethanol as co-solvent. The evaluated variables were temperature, pressure and co-solvent concentration. According to the validated model, the optimal conditions for maximum mass yield (5.31%, d.b.) were found at 58.5 °C, 306 bar and 14.3% of ethanol, and at 59.0 °C, 349 bar and 15.5% ethanol for carotenoid recovery (86.1%). Kinetic experiments showed that 97% of the total extractable carotenoid content was recovered after only 30 min, whereas model fitting confirmed the fast extraction trend and desorbing nature of carotenoids from the sample matrix. The process is potentially scalable, as demonstrated by runs performed with a 10-fold initial sample size, which led to even higher recoveries (96.2%), indicating that S-CO2 can be as efficient as a conventional solvent extraction for recovering high value compounds from vegetable by-products

An assesment of Singapore's biomedical sciences landscape with reference to Japan and Taiwan

The revolutionary science of 'Biotechnology' is emerging as a 'technology of hope' for humankind. By integrating life sciences, biochemistry, molecular biology, chemical engineering and computer sciences, biotechnology can have profound impact in the fields of medicine, agriculture, animal farming and environmental protection. Low cost medicine, breakthrough discoveries to manage illnesses and diseases, improved livestock and crops are now within grasp of making this a reality. Recognising this revolutionary potential of biotechnology, the government has designated Biomedical Sciences (BMS) to be the fourth economic pillar of Singapore. The vision is to develop Singapore into a global hub for biomedical sciences in Asia. This research will assess Singapore's competitive advantage against 2 regional neighbours, Japan and Taiwan, using a set of identified key success factors based on OTA (1984) framework, United Nations (2004) study paper, European Commission (2002) study paper and the Diamond model (Porter, 1990). Interviews with industry players were also done to include a current industry perspective.Master of Business Administratio

Gac fruit ( Momordica cochinchinensis

Gac (<i>Momordica cochinchinensis</i> Spreng.) is a tropical vine originating from South and South-East Asia. Gac fruit has traditionally been used in Asia to provide red colour for cuisines and enhance visional health. Recently, Gac fruit has emerged as a potential source of carotenoids, especially lycopene and β-carotene. Carotenoids and other identified bioactives from this fruit including phenolics, flavonoids and trypsin inhibitors are associated with many beneficial bioactivities such as antioxidant, anticancer and provitamin A activities. In addition to the traditional utilisation, commercial products like Gac powder and Gac oil have been manufactured as natural colourants and medicinal supplements. This paper is a review of the scientific literature on the nutritional composition, biological activities and processing of Gac fruit

Influence of Temperature on the Performance of Photovoltaic Polycrystalline Silicon Module in the Bruneian Climate

The influence of working temperature for  a  polysilicon module has been investigated in Brunei Darussalam for a period of two years.  The rise in temperature produces thermal agitation which not only increases the dark current but also enhances the losses of free carriers in a polycrystalline module. The efficiency and the output power decreases with an increase in the working temperature. A maximum decline in the output power of 97% has been measured under a dominated diffused radiation environment. The temperature coefficients have been obtained and equations are developed to evaluate the change in the rating of module at any working temperature with reference to their values at STC

Influence of Temperature on the Performance of Photovoltaic Polycrystalline Silicon Module in the Bruneian Climate

The influence of working temperature for a polysilicon module has been investigated in Brunei Darussalam for a period of two years. The rise in temperature produces thermal agitation which not only increases the dark current but also enhances the losses of free carriers in a polycrystalline module. The efficiency and the output power decreases with an increase in the working temperature. A maximum decline in the output power of 97% has been measured under a dominated diffused radiation environment. The temperature coefficients have been obtained and equations are developed to evaluate the change in the rating of module at any working temperature with reference to their values at STC