화학 교사에게 필요한 실험 능력

박현주,정대홍,노석구,임희준,한재영,박종윤,Park, Hyun-Ju,Jeong, Dae-Hong,Noh, Suk-Goo,Lim, Hee-Jun,Han, Jae-Young,Park, Jong-Yoon 대한화학회 2009 대한화학회지 Vol.53 No.6

이 연구는 중등 화학 교사 전문성 및 지향점 제공을 위한 기초 조사로서, 실험 수업을 성공적으로 진행하기 위하여 필요한 화학 교사의 실험 능력에 대한 규명을 목적으로 하였다. 문헌 연구, 교과서 실험 분석, 과학 교사 설문 조사의 결과에 기초한 연구팀의 지속적인 논의를 통하여 연구를 진행하였다. 화학 교사의 실험 능력 규명을 위하여 수집된 자료들을 정리하여 크게 네 개의 단계(실험 수업 준비, 실험 수행 및 정리, 실험실 관리, 실험실 안전 관리)로 나누고, 각 단계별로 실험 능력에 관련된 소영역과 세부 내용 요소를 선별 ? 수정하여 재배치하였다. 실험실 안전 관리는 실험실 및 실험 활동에서 ‘안전’의 중요성을 강조하기 위해 별도의 단계로 구분하였다. 화학 교사가 갖추어야 할 실험 능력은 실험 수업 지도를 전제로 하여 교사 스스로 실험 수행을 할 수 있는가에 대한 능력으로, 시약 및 측정기기 사용, 시료 준비, 실험 설계, 바른 실험 습관 및 숙련도, 자료 정리, 분석 및 추론, 그리고 실험실 관리 및 실험실 안전 관리에 관련된 능력으로 특정지어 질 수 있다. The purpose of this study is to identify secondary chemistry teachers' abilities to carry-out experiment lesson successfully. As far as the research method is concerned, literature reviews, analyses of abilities to carry-out experimentation from science textbooks, and a survey of science teachers' perceptions of experimental ability were employed along with the progressive discussions among the authors. In order to identify secondary chemistry teachers' abilities to carry-out experimentation, we divided the experiment lesson into three stages of preparation, conduct and arrangement, and management of lab, and added the stage of safety. Each stage is classified into sub-areas, and the sub-area consists of subordinate elements. The safety stage was included separately to emphasize the importance of the safety issue in lab and experimental activities. The secondary chemistry teachers' abilities to carry-out experimentation are the abilities to perform experiments in person, presupposing the instruction of experiment, and can be featured with the use of reagent and measuring instruments, the preparation of sample, designing experiment, correct experimental habit and skillfulness, data processing, analysis and reasoning, and management of lab and safety.

택지내 분산형 저류지 시스템의 첨두유출 저감효과와 수리특성

박현주,이희창,변찬우,Park. Hyun-Joo,Lee. Hee-Chang,Byeon. Chan-Woo 한국방재학회 2013 한국방재학회 학술발표대회논문집 Vol.2013 No.1

국내 최초의 분산형 생태환경저류지 시스템으로 방재기능뿐만 아니라 초기 비점오염원에 대한 생태적 수질정화 및 생태복원, 근린공원의 친수적 이용성, 토지이용도 제고 등의 다양한 기능을 융합하여 대상지 특성에 적합한 다목적용 저류지가 조성되었다. 복원 후 수리 수문 모니터링 결과는 서울지역 재현기간 10년의 강우량과 홍수량에서 첨두홍수량은 12% 감소하고 20분의 지체효과를 보였다. 생태환경수로의 하상 평균소류력의 범위는 <TEX>$86.29-376.18N/m^2$</TEX>, 유속의 범위는 2.76-10.07m/s 이었다. 하상보호공은 평균 소류력이 <TEX>$133.94N/m^2$</TEX> 이하인 곳에는 자연석을, <TEX>$133.94N/m^2$</TEX> 이상인 곳에는 생태목틀이 적용되었다. 현장조사결과 생태목틀과 자연석이 적용된 생태환경수로는 자연석의 이탈이나 자연석 주변 하상 세굴과 토사의 퇴적이 발생하지 않았음을 확인하였다. 생태환경 저류지 시스템의 홍수저감효과와 생태환경 수로의 안정성을 입증하였다. 국내 융합적인 생태환경 저류지나 생태하천의 표준화와 적용에 필요한 중요한 기준을 확립하는데 기여할 수 있을 것이다. 다만 생태환경저류지 시스템 조성이후 생태적 안정화 기간인 2년 이상의 연구개발자(전문가)의 유지관리 참여가 필요하다. 이를 통해 일반기술자도 생태환경저류지의 조성 및 유지관리가 용이하도록 지침을 마련해야 할 것이다.

정보행위 분석을 통한 정보서비스 개선에 관한 연구

박현주,Park, Hyun-Joo 한국비블리아학회 2010 한국비블리아학회지 Vol.21 No.1

정보접근, 획득, 이용자와 정보시스템과의 상호작용과 관련된 내용 중심으로 연구된 이용자 연구는 변화된 정보환경에서 정보획득과 공유행위를 포함한 정보행위 관점에서 연구할 필요가 있다. Wilson의 정보행위 개념을 적용하여 도서관과 인터넷 환경에서 이용자 정보획득과 공유행위의 요구 및 동기, 과정의 내용을 분석하기 위해 질적 연구와 양적 연구의 통합적 접근을 시도하였다. 통합적 분석을 토대로 정보서비스 개선방안을 제시하였다. Study on users which was done centering information approach, acquisition and interoperability between users and information systems need to be studied in the perspective of information behavior including information acquisition and sharing behavior in the changing information environment. In order to analyze users' information acquisition and sharing behavior's demands, motives and processes in libraries and internet environments, integrated approach of both qualitative and quantitative study were tried by applying Wilson's information behavior concept. Plans for the improvement of information services were suggested on the basis of integrative analysis.

녹내장 여과 수술 후 발생한 중심장액성 맥락망막병증 1예

박현주,박종운,Hyun Ju Park,MD,Jong Woon Park,MD 대한안과학회 2014 대한안과학회지 Vol.55 No.12

Purpose: To report a case of central serous chorioretinopathy development after glaucoma filtering surgery and spontaneous resolution in a patient with a history of central serous chorioretinopathy in the contralateral eye. Case summary: A 46-year-old male with a history of chronic uveitis in both eyes presented with uncontrolled intraocular pressure (IOP) in his left eye. Initial IOP was 34 mm Hg in his left eye. On preoperative evaluation, central serous chorioretinopathy, which was diagnosed in another clinic 1 month prior, was observed in his right eye. Slightly pale optic disc and retinal nerve fiber layer defects were noted in the left eye. However, macular abnormalities were not observed in the left eye. Trabeculectomy and peripheral iridectomy using mitomycin C were performed in the left eye. The patient was prescribed triamcinolone 8 mg daily for 4 days to reduce the post-surgical inflammation. On postoperative day 4, IOP in the left eye was 7 mm Hg and newly developed central serous chorioretinopathy was noted. On follow-up, IOP was maintained at 7-10 mm Hg and central serous chorioretinopathy disappeared 7 months postoperatively. Conclusions: When clinicians consider performing an ophthalmological procedure in a patient with a history of central serous chorioretinopathy in the contralateral eye, careful observation of central serous chorioretinopathy development is recommended.J Korean Ophthalmol Soc 2014;55(12):1895-1900

금 합금 및 비 귀금속 합금에 대한 의치상 레진의 결합강도에 관한 연구

박현주,김창회,김영수,Park, Hyun-Joo,Kim, Chang-Whe,Kim, Yung-Soo 대한치과보철학회 2000 대한치과보철학회지 Vol.38 No.4

In general, the three major oral functions of edentulous patients-mastication, phonation, esthetics-can be rehabilitated by the complete dentures, and both the resin based complete denture and the metal based complete denture are commonly used by many clinicians today. For the sake of many advantages such as the excellent thermal conductivity, low volumetric change, high strength, low risk of fracture and the better patient's adaptation, the metal based complete dentures are indicated to the several cases. But, there are common failures of these type of dentures mainly by the fracture or the debonding between the resin structures and the metal frameworks which is caused by the discrepancies of the flexural strength and the coefficient of thermal expansion. This is aggravated by the water contamination of the interface when exposed to the oral environment and results in the failure of complete denture treatment. So, the purpose of this study is to compare the bond strength and the fracture patterns of the gold alloy based and the Co-Cr alloy based complete dentures using the PMMA resins and the 4-META adhesive resins. The results of this study were as follows. 1. Both to the PMMA resin and the 4-META resin, the flexural bond strength of gold alloy is lower than that of Co-Cr alloy(P<0.05) 2. To the Co-Cr alloy, the bond strength of the 4-META resin is significantly higher than that of PMMA resin(P<0.05). 3. The flexural strength of the group with the mechanical retention form is significantly higher than that of the group without retention form(P<0.05). 4. Comparing with the other groups, the fracture patterns of the group 3 are quite different from the group 1,2,5.

촉매 및 반응공학 Poster 발표 : 제올라이트 A 의 승온 결정화

박현주,서곤 ( Hyeon Ju Park,Gon Seo ) 한국화학공학회 1992 춘계학술발표회 Vol.- No.-

지속가능한 도시재생을 위한 도시기본계획 평가에 관한 연구

박현주,이진희,김현우,Park, Hyunjoo,Lee, Jin Hee,Kim, Hyun Woo 인천대학교 도시과학연구원 2019 도시과학 Vol.8 No.1

The goal of this study is to examine municipality comprehensive plans by recognizing the problem that adverse impacts of urban regeneration impede the sustainability of specific renewal project. 10 major cities in Korea that are experiencing urban decline were chosen for the study area and plan evaluation indexes were adopted based on the sustainable urban regeneration principles in terms of environmental, social, and economic aspects. Plan evaluation was conducted by employing the content analysis method and developed assessment indexes for three sectors (factual basis, goal/objective, and policy/action) of plan. The findings show that policies, such as 'expansion of parks in urban area,' 'pedestrian-oriented street improvement project,' and 'countermeasures for local industry revitalization,' should be fundamentally included in adopting sustainable urban regeneration plans. Plan scores regarding sustainable urban regeneration had an insignificant relationship with the status of administrative district and plan adopted year. This is because metropolitan municipalities, including Ulsan, Daejeon, and Daegu, received relatively low plan score compared to local governments like Goyang and Suwon. Also, Daegu and Suwon, which established their comprehensive plan in 2018 obtained lower score than Seoul and Incheon, where its plans were created before 2015. Evaluation protocol and indexes that were suggested in this study can be used while reorganizing each locality's comprehensive plan, and thus, play as one of major bases in preparing future sustainable urban regeneration projects.

미국에서의 DRG제도 현황

박현주,Park, Hyeon-Ju 대한병원협회 1997 대한병원협회지 Vol.26 No.1.2

정자 세척후 SWIM-UP 처치와 Percoll정자 처리방법의 자궁강내 인공수정술 후 임신 성공예후에 대한 비교 관찰

박현주,박현정,이여일,Park, Hyun-Jue,Park, Hyun-Jeong,Lee, Yu-Il 대한생식의학회 1993 Clinical and Experimental Reproductive Medicine Vol.20 No.1

From September 1988 to August 1992, two different methods of preparing human sperm before intrauterine insemination(IUI) were compared using the semen samples of seventy-three infertile couples. The sperms were prepared by a swim-up after sperm washing or by a continuous percoll gradient technique. Fourteen of 35 women conceived during IUI cycles using a sperm washing and swim-up method (40%), and 12 of 38 women conceived during IUI cycles using a percoll gradient technique(31.6%). Among the group with male infertile etiologic factor only, one of 5 women conceived during sperm washing and swim-up cycles(20%); one of 4 women conceived during percoll gradient cycles(25%). On the contrary, among the group with cervical factor only, six of 10 women conceived during sperm washing and swim-up cycles (60%) ; Five of 17 women conceived during percoll gradient cycles(29.4%). It is suggested that sperm separation by sperm washing ar -up is a useful technique for intrauterine insemination in cervical infertility, and sperm separation in percoll gradient appears to be more valuable for intrauterine insemination of male subfertility.

양상전근 마비의 임상 양상 및 수술 결과

박현주,이종복,유수리나.Hyun Ju Park. MD. Jong Bok Lee. MD. Soolienah Rhiu. MD 대한안과학회 2014 대한안과학회지 Vol.55 No.11

Purpose: To evaluate the clinical manifestations of double elevator palsy and describe the surgery outcomes in patients. Methods: We performed a retrospective chart review of all patients who were treated surgically for double elevator palsy between 1999 and 2012 at Yonsei University, Severance Hospital in Seoul, Korea. Results: Overall, 15 subjects (7 males and 8 females) with a mean age of 14.6 years (range, 3-40 years) underwent their first surgery during the study period. All patients received inferior rectus recession as a primary procedure. Nine patients (60.0%) underwent a secondary procedure which included 4 cases of horizontal muscle transposition, 2 cases of correction of exotropia, and 3 cases of correction of hypotropia and exotropia simultaneously. The mean preoperative hypotropia was decreased from 29.9 ± 8.4 prism diopter (PD) to 4.7 ± 5.3 PD postoperatively. Mean follow-up period was 40.9 ± 48.2 months. Seven patients (46.7%) underwent eyelid surgery for true ptosis. At last follow-up, a majority of patients showed mild or no amblyopia. Conclusions: Primary inferior rectus recession and additive secondary horizontal muscle transposition surgery was effective in treatment of double elevator palsy. The clinical manifestations and surgical outcomes of monocular elevation deficiency in the present study can help in the treatment of Korean patients. J Korean Ophthalmol Soc 2014;55(11):1674-1680