ST Engineering Ltd is an integrated engineering group in the aerospace, electronics, military contracting and marine sectors. Headquartered in Singapore, the group reported revenues of $5.05b in FY2007. With a market capitalisation of about $10b, it ranks among the largest companies listed on the Singapore Exchange. ST Engineering has more than 18,000 employees worldwide, and over 100 subsidiaries and associated companies in 21 countries and 35 cities. Wikipedia.
Datta A.,Nanyang Technological University |
Kong A.W.-K.,Nanyang Technological University |
Ghosh S.,Singapore Technologies Engineering |
Trau D.,National University of Singapore
13th IEEE International Conference on BioInformatics and BioEngineering, IEEE BIBE 2013 | Year: 2013
Bead encoding is a key problem central to all bead based microarrays. Recently a spatially addressable bead encoding technique has been developed (, ) that alleviates the need for costly hardware while still allowing high-throughput analysis. This paper proposes a pattern matching based scheme that extends this bead encoding technique's usability to uncontrolled environments. A novel affine invariant point pattern matching algorithm is developed to achieve this. The proposed algorithm uses local features to overcome the combinatorial explosion problem encountered in matching corrupted point patterns. The use of efficient data structures is emphasized to make the algorithm fast and scalable. The proposed scheme can decode bead identities in assays involving thousands of beads in a few seconds. Evaluation results using both real and simulated data are presented. © 2013 IEEE.
Chase N.J.,Red Cedar Technology |
Averill R.C.,Red Cedar Technology |
Sidhu R.S.,Red Cedar Technology |
Tan J.,Singapore Technologies Engineering
12th AIAA Aviation Technology, Integration and Operations (ATIO) Conference and 14th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference | Year: 2012
The aim of this study was to minimize the mass of the structural components in a composite aircraft in order to maximize its payload capacity and flight range. In particular, the detailed lamination schemes in various regions of the fuselage, tail, and wing structural components were optimized using a multi-disciplinary optimization strategy. At every point in the structure, the lamination scheme was defined as an assembly of sublaminates, each of which spanned different regions of the vehicle. The lamination schemes were automatically generated in terms of the sublaminate definitions. Thus, the design variables included the number of plies in each sublaminate and the orientation and material (unidirectional or fabric) in each ply. With hundreds of design variables and a large number of load cases, it was not possible to design an efficient composite aircraft structure using a manual design process and intuition alone. However, by taking advantage of the interactions among the many components, the multi-disciplinary optimization strategy employed here was able to achieve a significant overall mass reduction by making some regions heavier and others lighter. © 2012 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.
Agarwal K.,National University of Singapore |
Pan L.,National University of Singapore |
Leong Y.K.,Singapore Technologies Engineering |
Han M.,Singapore Technologies Engineering |
And 3 more authors.
International Journal of RF and Microwave Computer-Aided Engineering | Year: 2012
Two examples demonstrating the practical utility of multiple signal classification (MUSIC) in the imaging of small objects using inverse scattering formulations are presented in this article. For the first application (of interest to construction engineers), the task is to detect the presence of steel bars and empty ducts embedded within reinforced concrete; the results demonstrate that reinforcement bars of various sizes and empty ducts can be readily detected using MUSIC even in the presence of significant measurement noise. For the second application (of interest to oncologists treating breast cancer), the ultra-wideband variation of MUSIC has been developed for the noninvasive imaging of malignant tissues that are very small in size; the results indicate that it may assist in the early detection of very small malignant tumors even in the midst of fatty tissues. © 2012 Wiley Periodicals, Inc.
Tan B.H.,Institute of Materials Research and Engineering of Singapore |
Hussain H.,Institute of Materials Research and Engineering of Singapore |
Chaw K.C.,Institute of Materials Research and Engineering of Singapore |
Dickinson G.H.,National University of Singapore |
And 7 more authors.
Polymer Chemistry | Year: 2010
Well-defined nanostructured surface with domains of dimension ∼20 nm was formed by the self-assembly of brush-type amphiphilic block copolymers of poly[poly(ethylene glycol)methyl ether methacrylate]-block-poly(2,3,4,5,6- pentafluorostyrene) (P(PEGMA)-b-PPFS) which demonstrate promise in discouraging barnacle settlement as proven using laboratory settlement assays and marine field tests. © 2010 The Royal Society of Chemistry.
Teng S.,Nanyang Technological University |
Li Q.,Singapore Technologies Engineering |
Liu Y.,Nanyang Technological University
Magazine of Concrete Research | Year: 2014
A micromechanical model is developed to describe the stress-strain behaviours of concrete under uniaxial compression. Two kinds of defects are considered, namely microcracks around the mortar-coarse aggregate interface or the interfacial transition zone and aligned coalesced cracks in the concrete. The mortar-coarse aggregate interfaces (interfacial transition zone) are modelled as spring layers between the mortar matrix and the inclusions (aggregates) and the existences of the microcracks in the interfacial transition zone are considered as reductions of the spring parameters under the frame of the Mori-Tanaka method. The aligned coalesced cracks in concrete (mortar + aggregate) are treated as void inclusions in the matrix of concrete using the Mori-Tanaka scheme as well. Stochastic evolution rules are adopted for both defects. The numerical examples are worked out and the proposed model is shown to be capable of estimating the moduli of concrete under its whole loading process.
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