Paradoxical deterioration during anti-tubercular treatment in a dialysis patient on maintenance steroid therapy

We report a 38-year-old Chinese woman with lupus nephritis on peritoneal dialysis and long-term maintenance steroid therapy. This patient developed paradoxical deterioration during anti-tubercular therapy for tuberculous lymphadenitis. The deterioration resolved spontaneously without change to pharmacotherapy. Paradoxical deterioration that may spontaneously resolve is a potential complication of anti-tubercular treatment in patients on long-term renal replacement therapy.published_or_final_versio

Peritoneal computed tomography: A diagnostic tool for genital oedema in patients on peritoneal dialysis

published_or_final_versio

Management of pseudoaneurysms of the internal carotid artery in postirradiated nasopharyngeal carcinoma patients

postprin

Luminescent and structural properties of ZnO nanorods prepared under different conditions

Author name used in this publication: C. Surya2003-2004 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Novel application of magnetoresistive sensors for high-voltage transmission-line monitoring

High-voltage transmission lines are responsible for transmission of electric power. Their sag and electric current are important parameters for transmission-line monitoring. In this paper, a simple and promising method based on magnetoresistive sensors is proposed for transmission-line monitoring. This is a noncontact method and its installation is simple without the need for power cut. The method involves measuring emanated magnetic field from a line conductor at the ground level and, then, calculating the source position and current inversely. A proof-of-concept laboratory setup was constructed and a series of experiments were carried out for demonstration. This method can handle complicated transmission-line configuration by integrating the stochastic optimization approach into the inverse electromagnetic calculation. It was tested with the computational simulation of a 500 kV transmission-line configuration. The result shows the feasibility of using this transmission-line monitoring method in reality. © 2011 IEEE.published_or_final_versio

On wireless sensors communication for overhead transmission line monitoring in power delivery systems

The transmission of energy is monitored in the smart grid through deploying sensors in all the components, including the overhead transmission lines. There are many poles/towers supporting a long overhead transmission line. Naturally, sensors are deployed on the location close to the poles/towers on each span. Due to the limited transmission range of the wireless transceiver module of a sensor, researchers generally assume that data generated by a sensor have to be delivered to the substation through a set of sensors in-between. This results in a linear network model. In this paper, we first analyze the performance of this model in handling the traffics extracted from an existing testbed. We realize that the linear network model may not be sufficient to support future smart grid applications which may have diversified requirements on data delivery. We then study a new network model in which sensor/relay nodes can also communicate with other nodes using a wide area network such as the cellular network. In this new model, the network formed can be reconfigured based on the application requirements to deliver information to the substations efficiently and effectively.published_or_final_versionThe 1st IEEE International Conference on Smart Grid Communications (SmartGridComm 2010), Gaithersburg, MD., 4-6 October 2010. In Proceedings of the 1st SmartGridComm, 2010, p. 309-31

Low energy electron irradiation induced deep level defects in 6H-SiC: The implication for the microstructure of the deep levels E1/E 2

The deep level defects in 6H-SiC induced by low energy electron irradiation was investigated. Electron energies of 0.2, 0.3, 0.5 and 1.7 MeV were used to produce the deep level defects in the n-type 6H-SiC materials. The deep level transient spectroscopy (DLTS) technique, combined with isochronal thermal annealing experiments, was used for the study of the defects. It was observed that deep levels ED1, E1/E2 and Ei were created with irradiation energies of 0.3 MeV or greater than that. The deep levels were found to be associated with primary atom displacement on the C atom of SiC sublattice and had microstructure containing the carbon vacancy.published_or_final_versio

Constructal design of pedestrian evacuation from an area

Author name used in this publication: Lui, C. H.Author name used in this publication: Fong, N. K.Author name used in this publication: Chow, W. K.2012-2013 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Constructal design for pedestrian movement in living spaces : evacuation configurations

Author name used in this publication: C. H. LuiAuthor name used in this publication: N. K. FongAuthor name used in this publication: S. LorentAuthor name used in this publication: A. BejanAuthor name used in this publication: W. K. Chow2011-2012 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe