경상북도 영덕 방언의 특징

윤지희,김해정 동국어문학회 1999 동국어문학 Vol.10ㆍ11 No.-

본의 아닌 무임 승차

윤지희 샘터사 2002 월간 샘터 Vol.33 No.2

난소과잉자극증후군 유발하는 난포자극 호르몬 분비 뇌하수체 종양 2예

윤지희,김수정,김희경,강호철 대한내과학회 2011 대한내과학회 추계학술대회 Vol.2011 No.-

환경포럼 : 유럽의 신,재생 에너지 발전 및 정책 동향

윤지희,신상철 한국환경정책평가연구원 2012 환경포럼 Vol.16 No.9

세계는 에너지 위기 안보 및 저탄소 경제 실현을 위하여 다양한 신·재생에너지 발전지원 정책을 추진 중이다. 유럽연합의 경우 대부분의 국가에서 FIT 제도와 같은 가격조절 제도를 시행하고 있으며, 두 가지 이상의 ``주요`` 신·재생에너지 발전지원정책(RES-E policy)1 들을 결합하여 운영의 효율성을 높이고 있다. 영국의 RES-E 정책의 실패 사례는 2012년 FIT 제도에서 RPS 제도로 변경한 한국의 신·재생에너지 정책 시행에 있어 시사하는 바가 있다. RPS 제도를 시행하면서 2010년에 부분적으로 FIT 제도를 도입한 영국은 잦은 RES-E 정책의 변화로 인하여 의무공급자들의 정책에 대한 이해 혼란 유발 및 보조금 지원 기간의 불확실성 등의 문제점이 발생하였다. 이와 같은 영국의 사례는 신·재생에너지 지원정책 수립에 있어서 변경된 정책에 대한 의무이행자들 간의 명확한 이해와 합의, RPS 제도 변경의 효과 등에 대한 국민적 인지도 형성이 중요함을 알 수 있다. 또한 시장 기반의 RPS 제도가 갖고 있는 신·재생에너지 공급 인증서 거래가격 예측의 어려움 등의 문제점들을 사전에 대비할 수 있는 보완제도를 마련하고, 유럽연합의 사례와 같이 ``주요`` 신·재생에너지 지원정책 외에 다양한 ``보완`` 정책들의 실시 및 소규모 신재생 설비규모의 경우 제한적 범위 내에서의 FIT 제도를 도입하는 방법 등도 효율적인 RPS 제도 시행을 위한 보완책이 될 수 있겠다.

Synthesis and Design of High Planar Non-fullerene Acceptor with Hydrogen Bonding for Efficient Organic Solar Cells

윤지희,전성재,문두경 한국공업화학회 2020 한국공업화학회 연구논문 초록집 Vol.2020 No.-

Organic Solar Cells (OSCs) have achieved significant progress with an increasing efficiency over 16% for single-junction cell. Especially in indoor application, the OSCs show notable performance compared to other solar cells. Because OSCs have advantages like broad angular response, improved module efficiency, and adjustable energy bandgap for indoor light sources. In this study, we designed and synthesized non-fullerene acceptors (NFAs) of A-DAD-A structure by introducing benzothiadiazole with strong electron affinity into acceptor core. In addition, thienothiophene and thiophene were introduced into spacer of core unit to secure outstanding planarity owing to induce inter/intra molecular hydrogen bonding. By analyzing the electrical and chemical characterizations, new NFAs were estimated in application to OSCs.

무한경쟁의 쳇바퀴는 언제 멈출 수 있을까

윤지희 한국비정규노동센터 2018 비정규 노동 Vol.128 No.-

Engineering of non-mevalonate pathway for lycopene production from formate using Methylorubrum extorquens AM1

윤지희,오민규 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.0

M. extorquens uses C1 compounds as a sole carbon source, so it has been in spotlight. Formate could be synthesized from CO₂, regarded as environmental, sustainable C1 feedstock. In this study, we produced lycopene from formate using M. extorquens by engineering nonmevalonoate pathway, also called MEP pathway, for effective lycopene production. First, LMZ01 strain was constructed by deleting CrtCD, genes for consuming lycopene, and used as a parental strain, showing improved lycopene production. Then, dxs, a rate-limiting step of MEP pathway, was overexpressed under lac, tac, and mxaF promoter, respectively. Expression level was shown to be strong in the order of mxaF, tac, and lac promoter by expressing EGFP. Interestingly, while the mxaF promoter with strong expression level was ineffective, the tac promoter with moderate level showed 45% increase in lycopene production. This showed lycopene could be produced reasonably from formate and moderate expression of MEP pathway is crucial.

상용 ORDB를 하부구조로 갖는 객체관계형 지리정보 시스템의 설계 및 구현

윤지희 한국공간정보학회 1997 한국공간정보학회지 Vol.5 No.1

본 논문에서는 객체관계형 지리정보 시스템의 설계 및 구현에 대하여 논한다. 본 지리정보 시스템은 상용의 객체관계형 데이터베이스 시스템을 하부 구조로 사용하며, 객체지향 데이터 모델에 근거한 공간 객체모델, 공간 질의어 및 시각적 사용자 인터페이스를 제공하고 있다. 특히 본 시스템에서는 데이터베이스 상의 주색인(primary index)기법으로 적용 가능한 DOT 공간 색인 기법을 이용하여 효율적인 공간 질의 처리를 수행한다. 또한 본 시스템에서는 SDTS데이터 모델을 개념적 모델로 사용하며, SDTS의 공간 객체에 관한 개념적 모델은 지리정보 시스템 내에서 내부 데이터 모델인 객체지향 데이터 모델로 전환된다. This paper presents the design and implementaion of an object-relational geographic information system. This system has been developed on top of a commercial object-relational database management system. It provides flexible spatial data model, spatial query language, visual user interface, and efficient spatial access methods(D0T) in which traditional primary-key access methods can be applied. We report on our design choices and describe the current status of Implementation. The conceptual model of the system is based on SDTS, and is mapped to the intemal obiect-oriented data model. Kevwords : object-oriented data model, GIS, spatial data model, spatial access method.

난소과잉자극증후군 유발하는 난포자극 호르몬 분비 뇌하수체 종양 2예

윤지희,김수정,김희경,강호철 대한내과학회 2011 대한내과학회 추계학술대회 Vol.2011 No.1

Gonadotroph pituitary adenomas have been classified as non-functioning tumor, since most of them are non-secreting tumor or biologically inactive hormones are produced from the tumors. Clinical symptoms and signs are delayed until the tumor grows enough to reveal neurological symptoms.Gonadotrophin secreting pituitary adenoma causing an ovarian hyperstimulation syndrome(OHSS) has been very rare in fertile years. We experienced two cases of FSH-secreting pituitary macroadenoma (FSHoma) with OHSS in reproductive-aged women. A 33-year-old woman having a history of ovarian cystectomy due to bilateral ovarian tumors complained visual disturbance. In the other case, a 31-year-old woman referred to our hospital due to multiple problems including infertility, both ovarian masses and decreased visual acuity. In both cases, the pituitary macroadenomas compressing optic chiasm were detected by asellar MRI.Pelvic MRI showed multiple septated ovarian cystic masses and laboratory findings revealed high FSH and estradiol with decreased LH levels in both two cases. Tumor removal through trans-sphenoidal approach was performed and immunohistochemical staining of resected pituitary tumors was positive for FSH. After the surgery, both women`s visual symptom improved and hormonal levels normalized. A woman presented with infertility regained fertility after the surgery and she delivered a healthy son. In infertile women presenting with symptoms of ovarian hyperstimulation and imaging features of bilateral large cystic ovarian masses, the possibility of FSHoma should be considered to avoid unnecessary gynecologic intervention and to prompt early diagnosis of pituitary tumor.

Lysosome-related organelles extracts from egg-white for hypermelanosis reduction

윤지희,오민주,안지영,SEKHONSIMRANJEET SINGH,김양훈,민지호 대한독성 유전단백체 학회 2016 Molecular & cellular toxicology Vol.12 No.2

Pigmentary disorders generally indicate that an increased amount of melanin, leading to darker color of skin, called hypermelanosis. Thus, several methods were studied for finding therapy of hypermelanosis until now in worldwide. In this study, the hypermelanosis reduction has been observed with daily lysosome-related organelles (LRO) extract from eggwhite. The scrub was used for enzyme extraction so as to maintain the stability of the extracted enzyme. The LRO extracts were divided and into two groups: free enzyme and fresh enzyme. Free enzyme was extracted on the first day from the LRO and fresh enzyme was extracted by scrub from LRO daily. The melanin dissolved phosphate buffer (pH 7.0) was treated by two groups of enzymes for a period of 30 days. The fresh enzymes were found to be more effective than the free enzymes. The activity of free enzymes decreases with time and as a result it could not degrade melanin after 36 days. The peroxidase activity was also measured and it matched with the results of previous studies. Therefore, the daily fresh enzymes displayed remarkable ability in hypermelanosis reduction than with free enzyme that lost its activity after some time. The present work can be potentially used for dermal disease in medical industry and also in cosmetic products.