University of Nottingham Malaysia Campus

www.nottingham.edu.my
Semenyih, Malaysia

The University of Nottingham Malaysia Campus is an overseas campus of the University of Nottingham. The university is situated in Semenyih, Selangor a town part of Greater Kuala Lumpur. The University was recently ranked as "excellent" or tier 5 in a scale of tier 1-6 and is classified as a private institution, by the Malaysian Ministry of Higher Education. Wikipedia.

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Grant
Agency: European Commission | Branch: FP7 | Program: CP-IP | Phase: NMP.2010.2.3-1 | Award Amount: 14.80M | Year: 2012

The development of functional materials for tissue regeneration is today mostly based on perceived and limited design criteria often using a single point approach with lengthy animal trials. The outcome after in-vitro and in-vivo evaluation is often disappointing resulting in a tedious iteration process. The main objective of this project is to achieve radical innovations in state-of-the-art biomaterials and to design highly performing bioinspired materials learning from natural processes. By this outcome driven project comprising first class academic and industrial participants the project will create scientific and technical excellence and through links with these SMEs will strengthen the technological capacity and their ability to operate competitively on an international market. BIODESIGN will (i) perform a careful retrospective-analysis of previous outcomes from clinical studies performed with humans through animal modelling in a reverse engineering approach applied to an in-vitro to the molecular design level, (ii) develop new strategies for a more rational design of ECM mimetic materials serving both as gels and load carrying scaffolds, (iii) link novel designs to adequate and more predictive in-vitro methods allowing significant reduction in development time and use of animals and (iv) evaluate these concepts for musculoskeletal and cardiac regeneration. By the development of safe, ethically and regulatory acceptable, and clinically applicable materials this project will promote harmonization while at the same time creating awareness in society of the benefits of these innovations as one of the key points is to improve health and quality of life of the patients. BIODESIGN will stimulate technological innovation, utilization of research results, transfer of knowledge and technologies and creation of technology based business in Europe. It will also support the development of world-class human resources, making Europe a more attractive to top researchers.


Teo L.P.,University of Nottingham Malaysia Campus
Physical Review D - Particles, Fields, Gravitation and Cosmology | Year: 2013

We study the Casimir interaction between a sphere and a cylinder both subjected to Dirichlet, Neumann, or perfectly conducting boundary conditions. Generalizing the operator approach developed by Wittman, we compute the scalar and vector translation matrices between a sphere and a cylinder, and thus write down explicitly the exact TGTG formula for the Casimir interaction energy. In the scalar case, the formula shows manifestly that the Casimir interaction force is attractive at all separations. The large separation leading term of the Casimir interaction energy is computed directly from the exact formula. It is of order ∼âcR1/[L2lnâ¡(L/R2)], ∼âcR13R22/L6, and ∼âcR13/[L4lnâ¡(L/R 2)], respectively, for Dirichlet, Neumann, and perfectly conducting boundary conditions, where R1 and R2 are, respectively, the radii of the sphere and the cylinder, and L is the distance between their centers. © 2013 American Physical Society.


Teo L.P.,University of Nottingham Malaysia Campus
Physical Review D - Particles, Fields, Gravitation and Cosmology | Year: 2013

We derive analytically the asymptotic behavior of the Casimir interaction between a sphere and a plate when the distance between them, d, is much smaller than the radius of the sphere, R. The leading-order and next-to-leading-order terms are derived from the exact formula for the Casimir interaction energy. They are found to depend nontrivially on the dielectric functions of the objects. As expected, the leading-order term coincides with that derived using the proximity force approximation. Numerical results are presented when the dielectric functions are given by the plasma model or the Drude model, with the plasma frequency (for plasma and Drude models) and relaxation frequency (for Drude model) given by the conventional values used for gold metal. It is found that if plasma model is used instead of the Drude model, the error in the sum of the first two leading terms is at most 2%, while the error in θ1, the ratio of the next-to-leading-order term divided by d/R to the leading-order term, can go up to 4.5%. © 2013 American Physical Society.


Lam H.L.,University of Nottingham Malaysia Campus
Current Opinion in Chemical Engineering | Year: 2013

The fast development of new products, process technologies and production methods has made the decision making in process design and synthesis a complicated task. Combination of all feasible process pathways and solutions creates a huge super structure. Thus, to determine the optimum solution and flexible alternative solution is a big challenge for Process Network Synthesis (PNS). Process graph (P-graph) approach has been extended gradually to provide a friendly and fast optimum result for PNS problem. This paper overviews the application of P-graph in new PNS areas in the aspect of synthesis, optimisation, planning and management. The paper demonstrates the extension of P-graph via several case studies such as effective supply chain systems, carbon emission reduction systems and cleaner production process synthesis. The paper also highlights the advantages of P-graph in process network synthesis. © 2013 Elsevier Ltd. All rights reserved.


Teo L.P.,University of Nottingham Malaysia Campus
Physical Review A - Atomic, Molecular, and Optical Physics | Year: 2014

We consider the interaction between a spherical plasma sheet and a planar plasma sheet due to the vacuum fluctuations of electromagnetic fields. We derive the TGTG formula for the Casimir interaction energy and study its asymptotic behaviors. In the small separation regime, we confirm the proximity force approximation and calculate the first correction beyond the proximity force approximation. This study has potential application to model Casimir interaction between objects made of materials that can be modeled by plasma sheets such as graphene sheets. © 2014 American Physical Society.


Teo L.P.,University of Nottingham Malaysia Campus
Physical Review D - Particles, Fields, Gravitation and Cosmology | Year: 2012

We consider the Casimir interaction between two spheres at zero and finite temperature, for both scalar fields and electromagnetic fields. Of particular interest are the asymptotic expansions of the Casimir free energy when the distance between the spheres is small. The scenario where one sphere is inside the other is discussed in detail. At zero temperature, we compute analytically the leading and the next-to-leading order terms from the functional determinant representation of the Casimir energy. As expected, the leading order term agrees with the proximity force approximation. The results for the next-to-leading order terms are new. In the limit where the radius of the outer sphere goes to infinity, the results for the sphere-plane geometry are reproduced. At finite temperature, the leading order term is computed and it is found to agree completely with the proximity force approximation in the medium and high temperature regions. For the scenario where two spheres are outside each other, analogous results are obtained. In particular, when a Dirichlet, Neumann, or perfectly conducting boundary condition is imposed on both spheres, the next-to-leading order term of the zero temperature Casimir energy is found to agree with that computed recently using derivative expansion. © 2012 American Physical Society.


Teo L.P.,University of Nottingham Malaysia Campus
Physical Review D - Particles, Fields, Gravitation and Cosmology | Year: 2015

We consider the Casimir interaction between two spheres corresponding to massless Dirac fields with MIT-bag boundary conditions. Using operator approach, we derive the TGTG formula for the Casimir interaction energy between the two spheres. A byproduct is the explicit formula for the translation matrix that relates the fermionic spherical waves in different coordinate systems. In the large separation limit, it is found that the order of the Casimir interaction energy is L-5, where L is the separation between the centers of the spheres. This order is intermediate between that of two Dirichlet spheres (of order L-3) and two Neumann spheres (of order L-7). In the small separation limit, we derive analytically the asymptotic expansion of the Casimir interaction energy up to the next-to-leading order term. The leading term agrees with the proximity force approximation. The result for the next-to-leading order term is compared to the corresponding results for scalar fields and electromagnetic fields. © 2015 American Physical Society.


Teo L.P.,University of Nottingham Malaysia Campus
Physical Review D - Particles, Fields, Gravitation and Cosmology | Year: 2011

We study the finite temperature Casimir interaction between a cylinder and a plate using the exact formula derived from the Matsubara representation and the functional determinant representation. We consider the scalar field with Dirichlet and Neumann boundary conditions. The asymptotic expansions of the Casimir free energy and the Casimir force when the separation a between the cylinder and the plate is small are derived. As in the zero temperature case, it is found that the leading terms of the Casimir free energy and the Casimir force agree with those derived from the proximity force approximation when rT1, where r is the radius of the cylinder. Specifically, when aT1rT (the medium temperature region), the leading term of the Casimir free energy is of order T5/2 whereas, for the Casimir force, it is of order T7/2. In this case, the leading terms are independent of the separation a. When 1aTrT (the high temperature region), the dominating terms of the Casimir free energy and the Casimir force come from the zeroth Matsubara frequency. In this case, the leading terms are linear in T, but for the free energy, it is inversely proportional to a3/2, whereas, for the force, it is inversely proportional to a5/2. The first order corrections to the proximity force approximations in different temperature regions are computed using the perturbation approach. In the zero temperature case, the results agree with those derived in [M. Bordag, Phys. Rev. DPRVDAQ1550-7998 73, 125018 (2006)10.1103/PhysRevD.73.125018]. © 2011 American Physical Society.


Teo L.P.,University of Nottingham Malaysia Campus
Physical Review D - Particles, Fields, Gravitation and Cosmology | Year: 2011

We consider the Casimir effect of the electromagnetic field in a higher-dimensional spacetime of the form M×N, where M is the four-dimensional Minkowski spacetime and N is an n-dimensional compact manifold. The Casimir force acting on a planar piston that can move freely inside a closed cylinder is investigated. Different combinations of perfectly conducting boundary conditions and infinitely permeable boundary conditions are imposed on the cylinder and the piston. It is verified that if the piston and the cylinder have the same boundary conditions, the piston is always going to be pulled towards the closer end of the cylinder. However, if the piston and the cylinder have different boundary conditions, the piston is always going to be pushed to the middle of the cylinder. By taking the limit where one end of the cylinder tends to infinity, one obtains the Casimir force acting between two parallel plates inside an infinitely long cylinder. The asymptotic behavior of this Casimir force in the high temperature regime and the low temperature regime are investigated for the case where the cross section of the cylinder in M is large. It is found that if the separation between the plates is much smaller than the size of N, the leading term of the Casimir force is the same as the Casimir force on a pair of large parallel plates in the (4+n)-dimensional Minkowski spacetime. However, if the size of N is much smaller than the separation between the plates, the leading term of the Casimir force is 1+h/2 times the Casimir force on a pair of large parallel plates in the four-dimensional Minkowski spacetime, where h is the first Betti number of N. In the limit the manifold N vanishes, one does not obtain the Casimir force in the four-dimensional Minkowski spacetime if h is nonzero. Therefore the data obtained from Casimir experiments suggest that the first Betti number of the extra dimensions should be zero. © 2011 American Physical Society.


Teo L.P.,University of Nottingham Malaysia Campus
Physical Review D - Particles, Fields, Gravitation and Cosmology | Year: 2011

We consider the small separation asymptotic expansions of the Casimir interaction energy and the Casimir interaction force between two parallel cylinders. The leading order terms and the next-to-leading order terms are computed analytically. Four combinations of boundary conditions are considered, which are Dirichlet-Dirichlet, Neumann-Neumann, Dirichlet-Neumann, and Neumann-Dirichlet. For the case where one cylinder is inside another cylinder, the computations are shown in detail. In this case, we restrict our attention to the situation where the cylinders are strictly eccentric and the distance between the cylinders d is much smaller than the distance between the centers of the cylinders. The computations for the case where the two cylinders are exterior to each other can be done in the same way and we only present the results, which turn up to be similar to the results for the case where one cylinder is inside another except for some changes of signs. In all the scenarios we consider, the leading order terms are of order d-7 /2 and they agree completely with the proximity force approximations. The results for the next-to-leading order terms are new. In the limiting case where the radius of the larger cylinder approaches infinity, the well-known results for the cylinder-plate configuration with Dirichlet-Dirichlet or Neumann-Neumann boundary conditions are recovered. © 2011 American Physical Society.

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