재발 미만성 거대세포 림프종의 직접 침범에 의한 단독 눈돌림신경마비

강혜민,김혜영,Hae Min Kang,Hye Young Kim 대한안과학회 2012 대한안과학회지 Vol.53 No.3

Purpose: Compared with multiple cranial nerve palsies, isolated nerve palsy is very rare in Non-Hodgkin’s lymphoma. We experienced a case of isolated oculomotor nerve palsy as the first sign of recurrent diffuse large B-cell lymphoma (DLBCL). Case summary: A 45-year-old woman visited the ophthalmology clinic with a one-month history of left upper eyelid ptosis and diplopia. She had a history of DLBCL of the nasopharynx and has been in complete remission for three years after systemic chemotherapy. Ophthalmologic evaluation showed ptosis of the upper eyelid, anisocoria, but no definite limitations in ocular movement. After six weeks, aggravated ptosis, exodeviation of the left eye in the primary position, and ocular movement limitations in all directions except abduction were observed. Brain magnetic resonance angiography taken four weeks earlier demonstrated no intracranial vascular lesion, but an enhancing lesion in the cistern along the left oculomotor nerve was shown in brain magnetic resonance imaging. We diagnosed isolated oculomotor nerve palsy due to direct invasion of recurrent DLBCL. Cerebrospinal fluid analysis revealed tumor cells, and follow-up MRI showed progression of lymphoma into the cavernous sinus. Conclusions: Although not common, isolated oculomotor nerve palsy can be the first sign of malignant lymphoma, even after complete remission. J Korean Ophthalmol Soc 2012;53(3):482-485

발달지연 소아환자에서 안과검진의 의의

강혜민,김혜영,Haemin Kang,Hye Young Kim 대한안과학회 2010 대한안과학회지 Vol.51 No.12

Purpose: To evaluate the ocular results and refractive errors in children with developmental delay and to determine the significance of ophthalmologic screening in children. Methods: The present study was conducted with children who visited the development delay clinic of National Health Insurance Corporation Ilsan hospital in Goyang, Korea. Primary evaluation included external eye examination, pupil reflex, and ocular movement test with focal light, and secondary evaluation included slit-lamp examination, fundus examination, cycloplegic refraction, and lacrimal drainage test if necessary. Results: Out of 89 subjects included in the study, 61.8% had ocular abnormalities other than refractive errors, and the two most common results included strabismus and epiblepharon, with occurrence rates of 24.7% and 22.5%, respectively. Among the 60 subjects who underwent cycloplegic refraction, 56.6% had refractive errors, with astigmatism (30%) being the most common. Among the 24 subjects who received treatment, four underwent surgical treatment and 20 started wearing glasses. Conclusions: The present study revealed a high prevalence of ophthalmologic abnormalities in pediatric developmental delay patients, indicating that systemic and comprehensive ophthalmic examination is necessary for these patients. J Korean Ophthalmol Soc 2010;51(12):1625-1629

한국인 특발성 시신경주위염의 임상양상

강혜민,김혜영.Hae Min Kang. MD. Hye Young Kim. MD 대한안과학회 2012 대한안과학회지 Vol.53 No.7

Purpose: To describe the clinical manifestations and magnetic resonance imaging (MRI) characteristics of idiopathic optic perineuritis patients in Korea. Methods: A retrospective chart review of 5 patients (6 eyes) with idiopathic optic perineuritis and 7 patients (7 eyes) with optic neuritis was performed. Results: The mean age of the 5 patients with idiopathic optic perineuritis was 59 years, and the mean age of the 7 patients with optic neuritis was 31.1 years. A relative afferent papillary defect (RAPD) was present in 4 eyes with idiopathic optic perineuritis, and in all 7 eyes with optic neuritis. All six eyes with idiopathic optic perineuritis showed relatively severe optic disc swelling, and 6 eyes with optic neuritis showed mild optic disc swelling. MRI demonstrated optic nerve sheath enhancement in all patients with idiopathic optic perineuritis and optic nerve enhancement in six patients with optic neuritis. Conclusions: On MRI, compared with optic neuritis, idiopathic optic perineuritis had a higher onset age, relatively severe optic disc swelling, and optic nerve sheath enhancement. Because idiopathic optic perineuritis is known to have different treatment strategies and prognosis compared with optic neuritis, differential diagnosis is crucial. The clinical manifestations and MRI characteristics of idiopathic optic perineuritis in the present study will help in the diagnosis of Korean patients. J Korean Ophthalmol Soc 2012;53(7):1016-1022

기중 고체유전체 계면에서의 표면방전 유한요소해석

강혜민(Hye-Min Kang),김용희(Yong-Hee Kim),이세희(Se-Hee Lee) 대한전기학회 2023 대한전기학회 학술대회 논문집 Vol.2023 No.7

드렁허리, Monopterus albus의 구두충 감염예에 대한 병리조직학적 관찰

강혜민 ( Hye Min Kang ),이한나 ( Han Na Lee ),임상구 ( Sang Gu Yim ),김영대 ( Young Dae Kim ) 한국어병학회 2013 한국어병학회지 Vol.26 No.3

Since March in 2013, Inland Aquaculture Research Center, NFRDI has cultivated 1,000 wild swamp eel(Monopterus albus) for species conservation research. While cultivating, 100 fishes showed clinical sign that darkness color, mucus hypersecretion and anus rubor. Even some of them were died. Result of anatomical test, all 100 fishes were infected with intestinal parasite, acanthocephalan. So we were going to determine the case of acanthocephalans infection in swamp eel(Monopterus albus) as histopathologically. Acanthocephalan was founded in alimentary canal only. Parasite were confirmed 19 unit in individual fish, averagely. Heavy infected fishes were confirmed enterocleisis by acanthocephalans. Worms were attachment in submucosa layer of alimentary canal by invading proboscis. Characteristic symptoms were observed in stomach and intestine, including hyperemia in mucous epithelium, infiltration of eosinophills in submucosa layer, inflammation, parasitic granuloma. Some fishes showed vacuolization of gastricgland epithelium, necrosis of intestinal mucosa. Other organs, excluding alimentary canal, were not found lesion. The results of this study, the effect of the acanthocephalan infection on swamp eel(Monopterus albus) could find and it seems to be a big help in the future swamp eel(Monopterus albus) cultivation.

전력반도체의 우주방사선 파괴에 대한 고찰

강혜민(Hyemin Kang) 대한전자공학회 2024 대한전자공학회 학술대회 Vol.2024 No.6

상급종합병원 간호사의 연령차별주의와 간호근무환경이 노인간호수행에 미치는 영향

강혜민(Hyemin Kang),신수진(Sujin Shin) 한국노인간호학회 2022 노인간호학회지 Vol.24 No.4

Purpose: This study aimed to examine tertiary hospital nurses’ ageism, nursing practice environment and geriatric nursing performance and discover factors influencing geriatric nursing performance. Methods: The research was conducted for 117 nurses working at tertiary hospitals located at Seoul, and data were collected from March 14 to March 31, 2022. The collected data were analyzed with descriptive statistics, t-test, ANOVA, Pearson’s correlation coefficients, and multiple regression using the IBM SPSS 26.0 program. Results: Nursing practice environment was positively correlated with geriatric nursing performance (r=.25, p=.007). The factors influencing geriatric nursing performance were nursing practice environment (β=.25, p=.009) and experience living with the elderly (β=.23, p=.013), and as for the present units, internal medicine (β=.27, p=.009) and integrated nursing·care service (β=.21, p=.042) wards compared with a surgery ward showed an explanatory power of 19.0%. Conclusion: Factors affecting geriatric nursing performance include the current unit where nurses work, nursing practice environment, and experience living with older adults. Based on the research findings, preparing measures for enhancing the quality of geriatric nursing performance is necessary.

탄소중립과 전력반도체

강혜민(Kang, Hye-Min) 대한전기학회 2022 전기의 세계 Vol.71 No.12

100 여년 전에 에디슨과 테슬라과 치열하게 경쟁하였던 직류와 교류의 싸움은 테슬라의 교류 전기로 우위가 확정되는 듯 하였으나, 신재생 에너지의 급속한 보급과 탄소 중립이라는 역사적 목표로 인하여, 직류 전기가 다시 부각되기 시작하였다. 직류전기의 변환은 전력반도체 기반의 변압기를 사용하여 가능하게 되었고, 신재생 에너지에서 발생하는 엄청난 양의 전기를 변환하기 위해서는 전력반도체 기반의 변압기 또한 새로운 진화가 필요하게 되었다. 본 고에서는 차세대 전력반도체 기반의 변압기를 구현하기 위한 미래의 전력반도체에 대해 고찰하도록 한다. Around one hundred year ago the winner of the battle between Tesla and Edison seemed to be Tesla. However the rapid supply of the renewable energy and the goal for carbon neutrality bring forward direct current system again. The conversion of direct current has been realized by the use of the converters based on power semiconductors. The conversion of the electricity from the massive renewable energy farms facilitates the evolution of the power semiconductor converters. In this report we will look into the future power semiconductors to realize next generation converters.

SiC 전력반도체 로드맵

강혜민(Kang, Hyemin) 대한전기학회 2024 전기의 세계 Vol.73 No.2

전력반도체 소자는 크게 단극 소자(unipolar device)와 양극소자(bipolar device)로 구성된다. 단극 소자는 자유전자만의 흐름으로 전기를 도통하는 소자이며, 양극 소자는 자유전자와 정공이 동시에 전기의 도통에 기여한다. 이로 인하여 모스펫과 같은 단극 소자는 고속 스위칭 등이 요구되는 시스템에 사용되며, IGBT와 같은 양극 소자는 높은 전류를 요구하는 시스템에 적용된다. 이러한 기본적인 개념을 바탕으로 SiC 전력반도체 소자의 중장기적 로드맵을 예측해 보았다. Power devices consist of unipolar device and bipolar device, Unipolar device utilize only electrons for current conduction, but bipolar devices use both electrons and holes. For this reason, unipolar devices such as MOSFETs, can be applied to high frequency applications and bipolar devices such as IGBTs, can be used to high current systems. With these basic concept of power devices, medium-and long-term road map for SiC power device is forecasted.

간호대학생의 윤리적 가치관, 개인정보 보호에 대한 인식 및 실천

강혜민(Kang, Hyemin),김보미(Kim, Bomi),김재경(Kim, Jaekung),정은서(Jung, Eunseo),이정은(Lee, Jeongeun),황수진(Hwang, Sujin),고은(Ko, Eun) 전남대학교 간호과학연구소 2020 Nursing and Health Issues(NHI) Vol.25 No.1

Purpose: The purpose of this study is to examine the relationship among ethical values, patients’ health information protection awareness and practice. Methods: This was a cross-sectional, correlational study. Participants were 186 nursing college students who had experienced clinical practice. They were administered a structured questionnaire regarding demographic characteristics, an ethical value scale, and a patients’ health information protection awareness and practice scale. Data were analyzed using descriptive statistics and Pearson s correlation coefficients using SPSS 25.0. Results: The mean scores on ethical value, patients’ health information protection awareness, and patients’ health information protection practice were 3.34±1.01, 4.35±0.49, and 4.28±0.68, respectively. Patients’ health information protection awareness was significantly positively correlated with practice (r=.42, p <.001). Simple regression analysis revealed that patients’health information protection awareness was responsible for 17.6% of the total variance in patients’ health information protection practice. Conclusion: Based on these results, it is necessary to identify the various predictors of patients’ health information protection practice and to develop an effective education program to improve patients’ health information protection awareness.