Dae Young Lee

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The traditionally wired interfaces of many electronic systems are in many applications being replaced by wireless interfaces. Testing of electronic systems (both integrated circuits and printed circuit boards) still requires physical electrical contact through probe needles and/or sockets. This paper addresses the state-of-the-art, options, and(More)
  • John T Hwang, Dae Young Lee, James W Cutler, Joaquim R R A Martins
  • 2013
Gradient-based multidisciplinary optimization is applied to a small satellite design problem. A novel MDO framework is developed by adopting a non-conventional definition of components which yields two key benefits for solving multidisciplinary analysis and optimization problems. The first is a unified solver which generalizes many existing methods for(More)
  • John T Hwang, Young Lee, James W Cutler, Joaquim R R A Martins, Multidisciplinary Large-Scale, Op +1 other
  • 2014
The design of satellites and their operation is a complex task that involves a large number of variables and multiple engineering disciplines. Thus, it could benefit from the application of multidisciplinary design optimization, but previous efforts have been hindered by the complexity of the modeling and implementation, discontinuities in the design space,(More)
PURPOSE To investigate the effect of diabetes mellitus induced by alloxan (DMIA) or streptozotocin (DMIS) on the pharmacokinetics of omeprazole in rats. It has been reported that omeprazole is primarily metabolized via hepatic CYP1A2, 2D1, and 3A1 in rats. The expression and mRNA levels of hepatic CYP1A2 and 3A1 increases in DMIA and DMIS rats, but the(More)
Expression of PtBS (Polygala tenuifolia β-amyrin synthase) led to the production of β-amyrin as sole product. Polygala tenuifolia Willdenow is a rich source of triterpene saponins, onjisaponins and polygalasaponins, used as herbal medicine to treat phlegms and for detumescence in traditional Asian healing. The Polygala saponins share the oleanane backbone(More)
The objective of this study was to investigate the immune-enhancing activity of a high molecular weight fraction (HMF) of Cynanchum wilfordii in RAW 264.7 macrophages and the cyclophosphamide (CYC)-induced mouse model of immunosuppression. To identify the bioactive substances of HMF, a crude polysaccharide (HMFO) was obtained and treated with sodium(More)
Pseudoshikonin I, the new bioactive constituent of Lithospermi radix, was isolated from this methanol extract by employing reverse-phase medium-pressure liquid chromatography (MPLC) using acetonitrile/water solvent system as eluents. The chemical structure was determined based on spectroscopic techniques, including 1D NMR (¹H, (13)C, DEPT), 2D NMR (gCOSY,(More)
BACKGROUND Cordyceps militaris is one of well-known medicinal mushrooms with anti-inflammatory, anti-cancer, anti-diabetic, and anti-obesity activities. OBJECTIVE The objective of the following study is to isolate chemical components from the ethanol extract (Cm-EE) from Cordyceps militaris and to evaluate their anti-inflammatory activities. MATERIALS(More)