Kwang Hyeon Hwang

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When operating in and around the orbit, the key to a successful result is precise anatomical localization. However, there is no precise study about the localization of vital orbital structures from reliable periorbital bony anatomy of the Korean adult. This study was constructed to give pertinent anatomical measurements to which the plastic and(More)
PURPOSE In anterior polar cataracts and the fibrosis that can occur after cataract surgery, lens epithelial cells synthesize abundant extracellular matrix molecules and transdifferentiate into myofibroblast-like cells. Transforming growth factor (TGF)-beta has been implicated as a key player in these cataractous changes. The purpose of this study was to(More)
New instrumentation and techniques for skeletal fixation have been developed in response to concerns regarding variability of the skull base and the calvaria. The fear of intracranial penetration has limited the use of internal or external fixation to the skull base and the calvaria. Despite potential clinical usefulness, limited anthropometric data have(More)
A morphometric study was made of the number of sweat glands and hairs per square centimeter of skin on different body regions of Korean adults. For this purpose, samples of skin from 30 body regions were obtained by punch biopsy from 74 cadavers of Korean adults. Serial transverse sections that extended through the papillary layer of the dermis were(More)
Recently, there has been considerable interest in micro gyroscopes made of silicon chips. It can be applied to many micro-electro-mechanical systems (MEMS): devices for stabilization, general rate control, directional pointing, autopilot systems, and missile control. The mechanical design of the gyroscope is carried out using axiomatic design, followed by(More)
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