Design of an LED thermal system for automotive systems

Author name used in this publication: K. W. E. ChengVersion of RecordPublishe

Treatment of a ruptured iliac aneurysm with an endoluminal stent graft.

The management of a 79-year-old man presenting with a ruptured common iliac aneurysm is described. The patient had multiple medical problems including hypertension, ischaemic heart disease, and atrial fibrillation, as well as a left hemispheric stroke 5 years previously. Traditional open surgery was judged unsuitable in this case because of the predicted poor outcome. The patient was subsequently treated successfully with endoluminal stent grafting.published_or_final_versio

Leakage field modeling of spiral winding transformer for contactless power converters

Author name used in this publication: K. W. E. ChengAuthor name used in this publication: Y. LuAuthor name used in this publication: K. W. ChanAuthor name used in this publication: Y. L. KwokAuthor name used in this publication: K. W. KwokAuthor name used in this publication: X. D. XueRefereed conference paper2005-2006 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe

LED lighting development for intelligent clothing

Author name used in this publication: K. W. E. ChengAuthor name used in this publication: Y. L. KwokAuthor name used in this publication: K. W. ChanAuthor name used in this publication: N. C. CheungAuthor name used in this publication: K. W. KwokVersion of RecordPublishe

Patients with Helicobacter pylori positive and negative duodenal ulcers have distinct clinical characteristics

Aim: To assess the clinical characteristics of Helicobacter pylori (H pylori) negative duodenal ulcer. Methods: Patients with an endoscopic diagnosis of duodenal ulcer between 1996 and 2002 were included in the present study. Patients were considered to be negative for H pylori, if both histological examination and rapid urease test of biopsy specimens were negative. A comparison was made between patients with H pylori positive and negative duodenal ulcers. Results: A total of 1 343 patients were studied. Their mean age was 54.7±0.5 years. There was a male preponderance (M:F = 2.5:1). Three hundred and ninety-eight patients (29.6%) did not have H pylori infection. The annual proportion of patients with H pylori negative duodenal ulcers increased progressively from 1996 to 2002. On multivariate analysis, patients with H pylori negative duodenal ulcer were more likely to be older, have concomitant medical problem, pre-existing malignancy, recent surgery, underlying sepsis, or taken non-steroidal anti-inflammatory drugs. In terms of clinical presentations, patients with H pylori negative duodenal ulcer were more likely to present with bleeding, multiple ulcers and larger ulcers. Conclusion: The proportion of patients with H pylori negative duodenal ulcers is on the rise because of a continued drop in incidence of H pylori positive duodenal ulcers in recent years. Such patients have distinct clinical characteristics and it is important to ascertain the H pylori status before starting eradication therapy. © 2005 The WJG Press and Elsevier Inc. All rights reserved.published_or_final_versio

Improvement of classroom teaching of electromagnetics by means of an electronic book

Author name used in this publication: X. D. XuePower Electronics Research Centre, Department of Electrical Engineering2002-2003 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Power factor and K-factor in the analysis of dc-dc converters

Author name used in this publication: K. W. E. ChengVersion of RecordPublishe

Trigonometry-based numerical method to compute nonlinear magnetic characteristics in switched reluctance motors

Author name used in this publication: X. D. XueAuthor name used in this publication: K. W. E. ChengAuthor name used in this publication: S. L. HoRefereed conference paper2005-2006 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe

New medium teaching method for power electronics

Author name used in this publication: K. W. E. ChengRefereed conference paper2004-2005 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe

General study on piezoelectric transformer

Author name used in this publication: Cheng K. W. E.Author name used in this publication: Kwok K. W.Power Electronics Research Center, Department of Electrical EngineeringAuthor name used in this publication: Chan H.Refereed conference paper2004-2005 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe