지면효과 해석을 위한 격자변형 기법 적용

허장현(Jang Hyeon Heo),박수형(Soo Hyung Park) 한국항공우주학회 2020 한국항공우주학회 학술발표회 논문집 Vol.2020 No.11

논문 : 골프장 용지 가격의 개별요인 분석

허장식 ( Jang Sig Heo ) 한국감정평가학회 2007 감정평가학논집 Vol.6 No.2

This study tried to analyze the factors determining land price in golf course by type. The object of this study is all golf courses opened nationwide and is limited to microscopic analysis which mainly concentrates on influences of site forces on market value. This study divided into two groups, private courses and daily fee courses. Statistical analysis was conducted by using hedonic price function. This study used DPI(distance-population index) which is the sum of numbers result from division of the population of cities nationwide by distance(km) from each city to golf courses. As a result of analysis, significant factors selected are as follows ; DPI, whether the golf course is located within the metropolitan area or not, zoning, rate of development area, total length of golf course, greens fee for non-members, annual sales, service years after completion for private courses ; DPI, whether the golf course is located within the metropolitan area or not, zoning, total length of golf course, greens fee for non-members, annual sales for daily fee courses. DPI was a significant common factor on all type of models at 1% level of significance.

PRK 로 유발된 염증반응 , 지질과산화 , 각막세포의 Apoptosis 에 대한 자외선 - B 와 양막이식의 영향

허장원(Jang Won Heo),이동열(Dong Yeol Lee),박우찬(Woo Chan Park),노세현(Sae Heun Rho) 대한안과학회 1999 대한안과학회지 Vol.40 No.10

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실험적으로 유발된 굴절 부등이 양안시에 미치는 영향

허장원(Jang Won Heo),유경원(Kyung Won Yoo) 대한안과학회 1999 대한안과학회지 Vol.40 No.12

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가토안에서 상직근 후전술 후 유착방지를 위한 양막연고의 효과

이동준 ( Dong Joon Lee ) , 허장원 ( Jang Won Heo ) , 박우찬 ( Woo Chan Park ) , 유경원 ( Kyung Won Yoo ) 대한안과학회 2003 대한안과학회지 Vol.44 No.7

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한국어판 미국 국립안연구센터 시각기능설문지 25의 타당성 및 신뢰도 연구

허장원,윤희성,신재필,문상웅,진희승,곽형우,Jang Won Heo,Hee Seong Yoon,Jae Pil Shin,Sang Woong Moon,Hee Seung Chin,Hyung Woo Kwak 대한안과학회 2010 대한안과학회지 Vol.51 No.10

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Purpose: To translate and evaluate the reliability and validity of the Korean version of the National Eye Institute Visual Functioning Questionnaire-25 (NEI-VFQ-25). Methods: Two bilingual ophthalmologists independently translated the original English version of the NEI-VFQ-25 into written Korean. A panel of the Korean Retina Society reviewed the translations to form a single reconciled forward translation of the Korean version of the NEI-VFQ-25. Another ophthalmologist back-translated this first draft into English. Both the first draft and back-translated draft were edited by a professional translator. To evaluate the correlation and validity, results between the original NEI-VFQ-25 and the Korean version, completed by the bilingual participants, were compared. Results: The Korean version of the National Eye Institute Visual Functioning Questionnaire-25 was developed by translation, back-translation, and expert supervision. Results from 23 bilingual participants between the original NEI-VFQ-25 and the Korean version were compared and showed statistically significant correlation, with a Spearman’s correlation coefficient of 0.4 or greater. The Kolmogorov-Smirnov test results showed no statistically significant differences between the two questionnaires. Conclusions: Translation and validation of the Korean version of the NEI-VFQ-25 was achieved. J Korean Ophthalmol Soc 2010;51(10):1354-1367

과립형성 및 성형방법에 따른 SOFC 음극의 미세구조 및 특성

허장원,이종호,황진하,문주호,Heo, Jang-Won,Lee, Jong-Ho,Hwang, Jin-Ha,Moon, Joo-Ho 한국전기화학회 2003 한국전기화학회지 Vol.6 No.1

음극지지형 고체산화물 연료전지의 전극성분은 연료전지 성능의 주된 감쇄요인으로 지적되고 있는 분극저항을 줄이기 위해 높은 전기전도도와 가스투과도등이 요구되어지고 있다. 본 연구에서는 SOFC음극의 성능에 영향을 주는 음극의 미세구조, 특히 음극의 기공구조를 다르게 형성시키기 위해 두 가지 서로 다른 과립형성 방법을 이용하여 음극을 제조하고 이에 따라 기판의 기공구조가 어떻게 바뀌는지 또 그로 인해 기판의 미세구조 및 전기전도도가 어떠한 영향을 받는지 관찰하였다 또한 미세구조에 대한 정량적인 화상분석을 통해 기판의 미세구조적인 인자들과 전극특성간의 상관관계를 분석하였다. It is well known that the anode substrate of anode-supported type SOFC should have high electrical conductivity and high gas permeability to minimize the polarization loss of the cell performance during operation. In this study, we made anode substrates of SOFC with two different methods, which gave different anode microstructures, especially different pore structures with each other. We performed electrical and microstructural characterization of Ni/YSZ cermet anode via extensive measurements of its electrical conductivity and gas permeability combined with adequate image analysis based on quantitative stereological theory

유기농업의 대안농업적 의미 및 특징

허장,Heo, Jang 전국농업기술자협회 2007 농업기술회보 Vol.44 No.4

안내 섬모에 의한 안내염

김미진,허장원,정흠,Mijin Kim,Jang Won Heo,Hum Chung 대한안과학회 2010 대한안과학회지 Vol.51 No.6

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Purpose: To report a case of intraocular cilium revealed by diagnostic vitrectomy in a case of stubborn uveitis that was unresponsive to steroid therapy. Case summary: A 39-year-old man was referred to our hospital due to decreased vision in his right eye that started two months prior to presentation. He had previously been treated for a diagnosis of iridocyclitis. The patient’s history revealed a blunt trauma to the right eye while wearing glasses after which he developed a microhyphema and was treated for traumatic iritis at another clinic 3 months ago. He was treated with topical and oral steroids after being diagnosed with iridocyclitis and had recently been prescribed additional oral cyclosporine because his condition had not improved. Ocular examination revealed inflammatory cells in the anterior chamber and vitreous cavity with hand motion vision. Ultrasonography revealed a hazy vitreous cavity but the retina was flat. Diagnostic vitrectomy with intravitreal antibiotic injection was performed and an intraocular foreign body presumed as a cilium was detected without an entrance wound on the exterior or interior surface of the eye. After removal of the foreign body, the patient’s vision was completely recovered. Conclusions: In cases of chronic uveitis that do not respond to immunosuppressive treatment without a clearly definable cause, diagnostic vitrectomy should be considered, keeping in mind the possibility of intraocular foreign body. J Korean Ophthalmol Soc 2010;51(6):904-907

냉동치료가 망막색소상피세포의 국소유착분자의 발현에 미치는 영향

이준교,허장원,정흠,Jun-Gyo Lee,Jang Won Heo,Hum Chung 대한안과학회 2005 대한안과학회지 Vol.46 No.2

'스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

Purpose: In the pathogenesis of proliferative vitreoretinopathy (PVR), retinal pigment epithelial (RPE) cells do not undergo apoptosis after separation from the basement membrane. In order to investigate the mechanism by which RPE cells resist apoptosis in PVR, the expression of focal adhesion kinase after cryotherapy was studied. Methods: After lensectomy and vitrectomy was performed on rabbit eyes, a retinal tear was created. Cryotherapy was applied to the tear site one week after the tear creation. Rabbits were sacrificed at 1, 4 and 7 days after the tear formation and 30 minutes, 1, 4, 7, 9, 21 days after cryotherapy. Eyes were stained with anti-focal adhesion kinase (FAK) antibody. Results: Expression of FAK increased after the tear formation and remained increased until 21days after cryotherapy. Conclusions: These data show that creation of a retinal tear and cryotherapy increases FAK expression and may contribute to resistance to apoptosis.