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4 results on '"Soo-Won Park"'

2. Selective reduction of NO by NH3 over Fe-zeolite-promoted V2O5-WO3/TiO2-based catalysts: Great suppression of N2O formation and origin of NO removal activity loss

Author

Soo Won Park and Moon Hyeon Kim

Subjects
Chemistry, Process Chemistry and Technology, Nanotechnology, Selective catalytic reduction, 02 engineering and technology, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Decomposition, Catalysis, 0104 chemical sciences, law.invention, Magazine, Chemical engineering, law, No removal, Selective reduction, 0210 nano-technology, Zeolite
Abstract

Great depression of the formation N2O in the selective catalytic reduction of NO by NH3 (NH3-SCR) has been studied by combining a V2O5-WO3/TiO2 (VWT) catalyst with a Fe-exchanged ZSM-5 zeolite (FeZ). At temperatures > 400 °C, N2O formation was significant over VWT but 350 °C, the chemically-combined VWT-based FeZ systems could facilitate both N2O reduction with NH3 and N2O decomposition, thereby suppressing N2O emissions in NH3-SCR reaction.

Published
2016
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3. Removal of foreign body on cheek using endoscope and C-arm fluoroscopy

Author

Iel Yong Sung, Jang Ho Son, Yeong Cheol Cho, Jin Hee Ha, Byung Hwan Choi, Soo Mi Jang, and Soo Won Park

Subjects
medicine.medical_specialty, C arm fluoroscopy, Endoscope, medicine.diagnostic_test, business.industry, Cheek, Parotid duct, medicine.disease, Facial nerve, Endoscopy, Surgery, medicine.anatomical_structure, medicine, Fluoroscopy, Radiology, Oral Surgery, Foreign body, business
Abstract

Traditional surgery to remove foreign bodies in the face carries a risk of postoperative morbidity with an injury to various an atomical structures, par- ticularly the facial nerve and parotid duct and gland. Endoscopy can be a great aid in the removal of foreign bodies in the max illofacial region. Surgical intervention using endoscope and/,or intraoperative images can be minimized, allowing the safe and precise removal of foreign bodies, and saving operating time. We report a case of the use of an endoscope and C-arm fluoroscopy guidance system to remove a very small foreign body.

Published
2011
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4. Alleviating Neuropathic Pain Hypersensitivity by Inhibiting PKMζ in the Anterior Cingulate Cortex.

Author

Xiang-Yao Li, Hyoung-Gon Ko, Tao Chen, Descalzi, Giannina, Koga, Kohei, Hansen Wang, Kim, Susan S., Yuze Shang, Chuljung Kwak, Soo-Won Park, Jaehoon Shim, Kyungmin Lee, Collingridge, Graham L., Bong-Kiun Kaang, and Min Zhuo

Subjects
*CHRONIC pain, *NEUROPLASTICITY, *CENTRAL nervous system, *PROTEIN kinases, *PAIN management, *ANIMAL models in research, *GENETICS
Abstract

Synaptic plasticity is a key mechanism for chronic pain. It occurs at different levels of the central nervous system, including spinal cord and cortex. Studies have mainly focused on signaling proteins that trigger these plastic changes, whereas few have addressed the maintenance of plastic changes related to chronic pain. We found that protein kinase M zeta (PKMζ) maintains pain-induced persistent changes in the mouse anterior cingulate cortex (ACC). Peripheral nerve injury caused activation of PKMζ in the ACC, and inhibiting PKMζ by a selective inhibitor, ζ-pseudosubstrate inhibitory peptide (ZIP), erased synaptic potentiation. Microinjection of ZIP into the ACC blocked behavioral sensitization. These results suggest that PKMζ in the ACC acts to maintain neuropathic pain. PKMζ could thus be a new therapeutic target for treating chronic pain. [ABSTRACT FROM AUTHOR]

Published
2010
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