Practical measure of cable coupling (2009)
Thomas, D.W.P., Christopoulos, C., Leferink, F.B.J., Bergsma, H.
In this paper the crosstalk between two parallel coaxial cables is investigated. It is shown that the degree of coupling is strongly effected by the geometry of the system. In many practical...
S. Gonzalez García, I. Villó Pérez, R. Gómez Martín, B. García, N. Sachdeva, N. Balakrishnan, ...
Figure 3 Temporal evolution (a) vacuum and (b) Tellegen medium, magnitude vs. spatial position) of the electric field E x in three different spatial positions (5010, 5110, and 5210). The time shift...
V. Trenkic, C. Christopoulos, T. M. Benson
A supercondensed TLM node for modelling inhomogeneous anisotropic media on an arbitrarily graded mesh without using stubs is developed. It requires less storage, computationally is more efficient and...
Near-field coupling of wireless devices and long communications cables (2008)
Christopoulos, C., Zhang, Y., Paul, J., Garbe, H., Battermann, S., Skrzypczynski, J., ...
Trenkic Christopoulos, V. Trenkic, C. Christopoulos, T. M. Benson
A supercondensed TLM node for modelling inhomogeneous anisotropic media on an arbitrarily graded mesh without using stubs is developed. It requires less storage, computationally is more efficient and...
A Graded Symmetrical Super-Condensed Node for the TLM Method (2007)
Trenkic Christopoulos, V. Trenkic, C. Christopoulos, Ieee Member, T. M. Benson
A novel node for use in simulations by the Transmission-Line Modelling (TLM) method is described. Unlike existing nodes, it contains no stubs but it is capable of modelling inhomogeneous media using...
`Det(I \Gamma TPS) = 0 '-- A Package for Visualizing TLM Dispersion Relations (2007)
Tps Package, V. Trenkic, C. Christopoulos, T. M. Benson
Solutions to the dispersion relation of TLM condensed node schemes are investigated under different conditions. A number of procedures for a mathematical solutions package are developed in order to...
TLM Method with Advanced Condensed Nodes (2007)
V. Trenkic, C. Christopoulos, T. M. Benson
this paper. A detailed comparison of computational and numerical characteristics of the MSCN and the ASCN with those of more traditional nodes will be presented and the significant improvements in...
Accounting for the effects on residual deformations due to torsional response (2006)
Pettinga, J.D., Priestley, M.J.N., Pampanin, S., Christopoulos, C.
Recent developments in performance-based seismic design and assessment approaches have emphasised the importance of properly assessing and limiting the residual (permanent) deformations typically...
Uma, S.R., Pampanin, S., Christopoulos, C.
Reports from past earthquake reconnaissance observations as well as results from analytical studies indicate that most structures designed according to current codes will sustain residual (permanent)...
Accounting for residual deformation and simple approaches to their mitigation (2006)
Pettinga, J.D., Pampanin, S., Christopoulos, C., Priestley, M.J.N.
in oral section of abstracts book
Uma, S.R., Pampanin, S., Christopoulos, C.
in oral section of abstracts book
Pampanin, S., Christopoulos, C., Chen, T-H
The feasibility and efficiency of a seismic retrofit solution for existing reinforced concrete frame systems, designed before the introduction of modern seismic-oriented design codes in the mid...
Pampanin, S., Christopoulos, C.
The feasibility and efficiency of a low-invasive seismic retrofit solution for existing reinforced concrete frame systems, designed before the introduction of modem seismic-oriented design codes in...
Christopoulos, C., Pampanin, S.
Special Issue on Performance Based Seismic Design
Non-Invasive retrofit of existing RC frames designed for gravity loads only (2003)
Pampanin, S., Christopoulos, C.
Recent experimental and analytical investigations on the seismic performance of existing reinforced concrete frame buildings, designed for gravity loads only, as typically found in Italy before the...
Konefal, T., Dawson, J.F., Denton, A.C., Benson, T.M., Christopoulos, C., Marvin, A.C., ...
This paper examines the coupling between two arbitrarily positioned wire segments inside a rectangular enclosure. The enclosure is treated as a superposition of analogous transmission lines which...
Thomas, D.W.P., Denton, A.C., Konefal, T., Benson, T., Christopoulos, C., Dawson, J.E., ...
We examine the extension of a simple and versatile model of the electromagnetic fields in an equipment enclosure with an aperture to include the effects of loading the enclosure with conducting...
JPEG 2000 still image coding versus other standards (2000)
Santa-Cruz, D., Ebrahimi, T., Askelof, J., Larsson, M., Christopoulos, C.
Region of interest coding in JPEG2000 for interactive client/server applications (1999)
Santa-Cruz, D., Ebrahimi, T., Larsson, M., Askelof, J., Christopoulos, C.
Advanced Node Formulations in TLM -- The Matched Symmetrical Condensed Node (MSCN) (1996)
Trenkic Christopoulos, V. Trenkic, C. Christopoulos, T. M. Benson
A novel node for TLM symmetrical condensed schemes is presented, which unlike existing nodes, contains link lines with the characteristic impedance equal to the intrinsic impedance of modelled...
Progressive very low bit rate image coding (1995)
CHRISTOPOULOS, C, SKODRAS, A, Philips, Wilfried, CORNELIS, J, CONSTANTINIDIS, A
Efficient Computation Algorithms for TLM (1995)
Trenkic Christopoulos, V. Trenkic, C. Christopoulos, T. M. Benson
Three-dimensional TLM condensed node schemes are discussed. Efficient algorithmic implementations of the scattering and connection procedure for these nodes are described. The storage efficiency and...
A Unified Approach to the Derivation of TLM Node Parameters (1995)
V. Trenkic, C. Christopoulos, T. M. Benson
The transmission-line modelling (TLM) method is generalized using a unified formulation for the stub and link line parameters. It is demonstrated that the parameters of all the existing time- and...
Numerical Simulation Of Penetration And Coupling Using The Tlm Method (1994)
Trenkic Duffy Benson, V. Trenkic, A. P. Duffy, T. M. Benson, C. Christopoulos
The paper describes progress in the modelling of penetration and coupling in configurations relevant to EMC. The application of the TLM method in modelling efficiently thin finiteconductivity panels...
Numerical Simulation of Polymers and Other Materials for Electronic Shielding Applications (1994)
Trenkic Christopoulos, V. Trenkic, C. Christopoulos, T. M. Benson
This paper describes the use of the TLM method to efficiently predict the electromagnetic shielding effectiveness of structures containing thin polymer panels. An improved routine for dealing with...
New Symmetrical Super-Condensed Node for the TLM Method (1994)
Trenkic Christopoulos, V. Trenkic, C. Christopoulos, T. M. Benson
An all-link line symmetrical condensed node capable of modelling of inhomogeneous materials is described. It is shown that it has significant advantages in storage and run time over the conventional...
Dispersion Analysis of TLM Symmetrical Super-Condensed Node (1994)
Trenkic Christopoulos, V. Trenkic, C. Christopoulos, T. M. Benson
A complete mathematical analysis of the dispersion in a symmetrical super-condensed node is presented. Comparisons show that this node exhibits superior dispersion characteristics over a stub-loaded...
Generally Graded TLM Mesh Using the Symmetrical Super-Condensed Node (1994)
Trenkic Christopoulos, V. Trenkic, C. Christopoulos, T. M. Benson
An implementation of an improved all-link line symmetrical condensed node for the TLM method is presented. The new node has the advantage of containing no stubs but is still capable of modelling...
Trenkic Christopoulos, V. Trenkic, V. Trenkic, C. Christopoulos, C. Christopoulos, T. M. Benson, ...
Developments in the transmission-line modelling (TLM) method, to increase spatial resolution using multigrid techniques, and to reduce run-time using efficient formulations of the scattering...
Facta Universitatis (nis, V. Trenkic, V. Trenkic, C. Christopoulos, C. Christopoulos, T. M. Benson, ...
Developments in the transmission-line modelling (TLM) method, to increase spatial resolution using multigrid techniques, and to reduce run-time using efficient formulations of the scattering...
Simple and Elegant Formulation of Scattering in TLM Nodes (1993)
Trenkic Christopoulos, V. Trenkic, C. Christopoulos, T. M. Benson, Abstract--- Scattering, Transmission-line Modelling
Scattering in the Transmission-Line Modelling (TLM) method is determined for a variety of nodes using a simple, rigorous and physically satisfying process. The method suggested is simpler to apply,...
The application of time-domain numerical simulation methods to the microwave heating of foods (1993)
Simulation of the microwave processing of food and other materials in general involves two distinct but interdependent processes. These are the determination of the electromagnetic field profile and...
Platelet satellitism and alpha granule proteins.
Blood smears from a patient with severe generalised arteriopathy and an occluded synthetic femoropopliteal graft showed the phenomenon of EDTA dependent adherence of platelets to neutrophils...
Presence of the bcr/abl rearrangement in a patient with chronic neutrophilic leukaemia.
Christopoulos, C, Kottoris, K, Mikraki, V, Anevlavis, E
An 83 year old women presented with a myeloproliferative disorder involving the myeloid and megakaryocytic lines, and characterised by mature neutrophil leucocytosis. There was a high/normal...
Acquired pseudo-pseudo Bernard-Soulier syndrome complicating Gaucher's disease.
Kelsey, H, Christopoulos, C, Gray, A A, Machin, S J
AIMS--To investigate the abnormality in platelet function in two patients with type I Gaucher's disease causing a chronic bleeding tendency despite normalisation of the platelet count after spleen...
Hodgkin's disease in a patient with common variable immunodeficiency.
Christopoulos, C, Papadaki, T, Vlavianos, P, Kokkini, G
A 61 year old man with long standing common variable immunodeficiency presented with pyrexia, anaemia and leucopenia. A diagnoses of Hodgkin's disease of the bone marrow was made. The typical...
Platelet satellitism and alpha granule proteins.
Blood smears from a patient with severe generalised arteriopathy and an occluded synthetic femoropopliteal graft showed the phenomenon of EDTA dependent adherence of platelets to neutrophils...
Presence of the bcr/abl rearrangement in a patient with chronic neutrophilic leukaemia.
Christopoulos, C, Kottoris, K, Mikraki, V, Anevlavis, E
An 83 year old women presented with a myeloproliferative disorder involving the myeloid and megakaryocytic lines, and characterised by mature neutrophil leucocytosis. There was a high/normal...
Acquired pseudo-pseudo Bernard-Soulier syndrome complicating Gaucher's disease.
Kelsey, H, Christopoulos, C, Gray, A A, Machin, S J
AIMS--To investigate the abnormality in platelet function in two patients with type I Gaucher's disease causing a chronic bleeding tendency despite normalisation of the platelet count after spleen...
Hodgkin's disease in a patient with common variable immunodeficiency.
Christopoulos, C, Papadaki, T, Vlavianos, P, Kokkini, G
A 61 year old man with long standing common variable immunodeficiency presented with pyrexia, anaemia and leucopenia. A diagnoses of Hodgkin's disease of the bone marrow was made. The typical...
Platelet surface immunoglobulin G (PSIgG) was measured ex vivo in nine patients with stable angina pectoris receiving continuous (48-96 h) infusions of Fab fragments of a chimaeric MoAb (human IgG...
Pyrexia, pancytopenia and macrophage inclusions in an elderly woman.
Robotis, J., Christopoulos, C., Tzavaras, A., Gikonti, I., Anevlavis, E.