Faculty of Science: Recent submissions

Now showing items 541-560 of 656

Two requisite tools in the optimal design of electromagnetic devices

Subramaniam; Srisivane; Kanaganathan, S.; Hoole, S.; Ratnajeevan, H. (1991-09)

The requisite methodology for performing optimal design--the synthesis of devices from specified performance standards--is now in place. Software that is reliable and transparent to the user is required. If this could be ...
Impedance boundary condition in the boundary element-vector potential formulation

Subramaniam; Srisivane; Hoole, S.; Ratnajeevan, H. (1988-11)

The impedance boundary condition has been used with great profit to eliminate large regions from the solution to solve eddy current problems. In the boundary element formulation, the reduction of the order of singularities ...
Combined feature descriptor for content based image retrieval

Selvarajah, S.; Kodithuwakku, S.R. (IEEE, 2011-08)

Content based Image Retrieval (CBIR) allows automatically extracting target images according to objective visual contents of the image itself. Representation of visual features and similarity match are important issues in ...
Description length and dimensionality reduction in functional data analysis

Poskitt, D.S.; Sengarapillai, A. (Elsevier B.V., 2013-02)

The use of description length principles to select an appropriate number of basis functions for functional data is investigated. A flexible definition of the dimension of a random function that is constructed directly from ...
A level set based deformable model for segmenting tumors in medical images

Somaskandan, S.; Mahesan, S. (IEEE, 2012-03)

Tumor segmentation from medical image data is a challenging task due to the high diversity in appearance of tumor tissue among different cases. In this paper we propose a new level set based deformable model to segment the ...
An efficient and speeded-up tree for multi-class classification

Ranganathan, P.; Ramanan, A.; Niranjan, M. (IEEE, 2012-09)

Support vector machine is a state-of-the-art learning machine that is used in areas, such as pattern recognition, computer vision, data mining and bioinformatics. SVMs were originally developed for solving binary classification ...
A Review of Codebook Models in Patch-Based Visual Object Recognition

Ramanan, A.; Niranjan, M. (Springer Science+Business Media, LLC, 2011)

The codebook model-based approach, while ignoring any structural aspect in vision, nonetheless provides state-of-the-art performances on current datasets. The key role of a visual codebook is to provide a way to map the ...
A one-pass resource-allocating codebook for patch-based visual object recognition

Ramanan, A.; Niranjan, M. (IEEE, 2010)

Frequencies of occurrence of low-level image features is the representation of choice in the design of state-of-the-art visual object recognition systems. A crucial step in this process is the construction of a codebook ...
Robust invariant descriptors for visual object recognition

Barathy, G.; Mahesan, S.; Pinidiyaarachchi, U.A.J. (IEEE, 2011)

In the state-of-the-art visual object recognition, there are a number of descriptors that have been proposed for various visual recognition tasks. But it is still difficult to decide which descriptors have more significant ...
Characterising chemical functionality on carbon surfaces

Wildgoose, G.G.; Abiman, P.; Compton, R.G. (The Royal Society of Chemistry, 2009-07-28)

This feature article introduces the reader to the surface chemistry and structure of graphitic carbon materials, including carbon nanotubes. Recent work involving the development of dual labels that allow us to selectively ...
Synthesis of a 4-aryl-2-anilinopyrimidine using a germanium-functionalised non-cross-linked polystyrene (NCPS) support

Srikaran, R.; Kontorgiorgis, C.A.; Warren, S.A.; Pisaneschi, F.; Spivey, A.C. (2013)

The use of a germanium-functionalised non-cross-linked polystyrene (NCPS) support to aid the preparation of a 2-anilino-4-arylpyrimidine is described. This compound is a key intermediate en route to various IKK-2 and JNK ...
Traceless solid phase synthesis of 2-substituted pyrimidines using an 'off-the-shelf' chlorogermane-functionalised resin

Spivey, A.C.; Srikaran, R.; Diaper, C.M.; Turner, D.J. (2003-05)

The parallel solid phase synthesis of an 18-member library of 2-substituted pyrimidines is described using a chlorogermane-functionalised resin. The success of the key Pinner-type condensations between a resin-bound enaminone ...
Synthetic methods: Part (iii) protecting groups

Spivey, A.C.; Srikaran, R. (2001)

Another excellent and comprehensive 'update' review of protecting group (PG) strategies in organic synthesis has appeared this year. Additionally, a focused review of advances in glycopolymer synthesis highlighting advances ...
Solid-phase synthesis of an A-B loop mimetic of the Cε3 domain of human IgE: Macrocyclization by Sonogashira coupling

Spivey, A.C.; McKendrick, J.; Srikaran, R.; Helm, B.A. (2003-03)

The solid-phase synthesis of a cyclic peptide containing the 21-residue epitope found in the A-B loop of the Cε3 domain of human immunoglobulin E has been carried out. The key macrocyclization step to form the 65-membered ...
Kinetics and mechanism of the photooxidation of bis(bipyridine)dichlororuthenium(II) and the photoreduction of bis(bipyridine)dichlororuthenium(III) in chloroform

Sathiyabalar, S.; Hoggard, P.E. (American Chemical Society, 1995)

In air-saturated CHCl3 irradiation of [Ru(bpy)2Cl2]0/+ (bpy = 2,2′-bipyridine) with the full UV output of a 200-W mercury lamp converted the Ru(II) complex completely to Ru(III) at or below 58°C, and converted the Ru(III) ...
Investigating the reactive sites and the anomalously large changes in surface pKa values of chemically modified carbon nanotubes of different morphologies

Masheter, A.T.; Abiman, P.; Wildgoose, G.G.; Wong, E.; Xiao, L.; Rees, N.V.; Taylor, R.; Attard, G.A.; Baron, R.; Crossley, A.; Jones, J.H.; Compton, R.G. (The Royal Society of Chemistry, 2007)

"Bamboo-like" multiwalled (b-MWCNT), "hollow-tube" multiwalled (h-MWCNT) and single-walled carbon nanotubes (SWCNT), chemically modified with 1-anthraquinonyl (AQ) or 4-nitrophenyl (NP) groups, are characterized using ...
Chemical analysis of Datura metel leaves and investigation of the acute toxicity on grasshoppers and red ants

Kuganathan, N.; Ganeshalingam, S. (2011-01)

The present study was carried out to analyse the inorganic and organic contents in the leaf of Datura metel and to investigate the acute toxicity at varying concentrations on grasshoppers and red ants. We determined the ...
Hydrogenation of N over Fe{111}

Iyngaran, P.; Madden, D.C.; Jenkins, S.J.; King, D.A. (2011-01)

Over the past five decades, ultra high vacuum (uhv) techniques applied to well-defined single-crystal samples (the "surface science paradigm") have transformed our understanding of fundamental surface chemistry. To translate ...
The generation of a TME biradical in the photosensitised photolysis of a bi-(1-pyrazolin-4-ylidene)

Bushby, R.J.; Mann, S.; Jesudason, M.V. (1983)

The direct photolysis and flash vacuum pyrolysis of 3,3,3′,3′,5,5,5′,5′-octamethyl-bi-(1-pyrazolin-4-ylidene) {A figure is presented} proceeds via a sequence of TMM intermediates but in the photosensitised photolysis a TME ...
Preparation, pyrolysis, and photolysis of three sterically crowded alkenes, 3,3,3′,3′,5,5,5′,5′-octamethyl-3,3′,5,5′- tetrahydro-4,4′-bi(4H-pyrazolylidene) 2,2,4,4-tetramethyl-3-(3,3,5,5-tetramethyl-3,5-dihydro-4H-pyrazol-4-ylid ene)-thietane 1,1-dioxide and...

Bushby, R.J.; Mann, S.; Jesudason, M.V. (1984)

full title: Preparation, pyrolysis, and photolysis of three sterically crowded alkenes, 3,3,3′,3′,5,5,5′,5′-octamethyl-3,3′,5,5′- tetrahydro-4,4′-bi(4H-pyrazolylidene) 2,2,4,4-tetramethyl-3-(3,3,5,5-tetramethyl-3,5-dihyd ...

Now showing items 541-560 of 656

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