• Journal of Yeungnam Medical Science
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• 제40권2호
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• pp.113-114
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• 2023

• Journal of Yeungnam Medical Science
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• 제22권2호
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• pp.259-265
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• 2005

Central diabetes insipidus (DI) is a syndrome characterized by thirst, polydipsia and polyuria. Langerhans cell histiocytosis is one of the etiologies of DI. Recently we experienced a central DI associated with Langerhans cell histiocytosis. The 44 years old female patient complained right hip pain, polydipsia and polyuria. We carried out water deprivation test. After vasopressin injection, urine osmotic pressure was increased from 109 mOsmol/kg to 327 mOsmol/kg (300%). Brain MRI showed a thickened pituitary stalk and air bubble like lesions sized with 5cm, 7cm was shown on fifth L-spine and right hip bone at hip bone CT. CT guided biopsy revealed abnormal histiocytes proliferation and abundant lymphocytes. The final diagnosis was central DI associated with systemic Langerhans cell histiocytosis invading hip bone, L-spine and pituitary stalk. Desmopressin and etoposide chemotherapy were performed to the patient.

• Bulletin of the Korean Chemical Society
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• 제28권10호
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• pp.1863-1866
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• 2007

• 대한핵의학회:학술대회논문집
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• 대한핵의학회 1999년도 제38차 추계학술대회
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• pp.31.1-31.1
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• 1999

• 대한약학회:학술대회논문집
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• 대한약학회 2000년도 춘계총회 및 학술대회
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• pp.137.2-138
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• 2000

• Bulletin of the Korean Chemical Society
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• 제25권3호
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• pp.397-399
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• 2004

• Bulletin of the Korean Chemical Society
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• 제24권11호
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• pp.1699-1701
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• 2003

• Bulletin of the Korean Chemical Society
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• 제13권3호
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• pp.338-339
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• 1992

• 한국전기전자재료학회논문지
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• 제35권6호
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• pp.639-646
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• 2022

Energy harvesting technologies that can convert wasted various energy into usable electrical energy have been widely investigated to overcome the limitation of batteries for the powering of IoT sensors and small electronic devices. Hybrid energy harvesting is known as a technology that enhances the output power of single energy harvesting device by housing two or more various energy harvesting mechanisms. In this study, we introduce a hybrid MME (Magneto-Mechano-Electric) generator coupled with the triboelectric effect. Through FEA modeling, four triboelectric materials, including PI (Polyimide), PFA(Teflon), Cu, and Al, were selected and compared with the expected triboelectric potentials. The effect of surface morphology was investigated as well. Among various combination of triboelectric materials and surface morphologies, PFA-Al combination with the surface morphology having nano-scale square projections showed highest output potential under triboelectrification. It is also experimentally confirmed that output voltage and power of the hybrid MME generator with triboelectric material combinations.

• Journal of Yeungnam Medical Science
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• 제27권2호
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• pp.133-138
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• 2010

Apical hypertrophic cardiomyopathy is rare disease and a variant of hypertrophic cardiomyopathy with prevalence of 1 in 500 in the general population. Apical hypertrophic cardiomyopathy with apical aneurysm and intramural thrombus is extremely rare. We report a case of apical hypertrophic cardiomyopathy progressing to left ventricular apical aneurysm with intramural thrombus diagnosed by contrast echocardiography.