엿류의 표준규격

정승원,Jeong, Seung-Won 한국식품연구원 1996 食品技術 Vol.9 No.2

한강하류의 환경학적 연구 V.식물플랑크톤 군집 대발생의 특징

정승원,이진환,유종수,Jeong, Seung-Won,Lee, Jin-Hwan,Yu, Jong-Su 한국조류학회(藻類) 2003 ALGAE Vol.18 No.4

Ecological characteristics of phytoplankton communities were investigated biweekly at 6 stations from Feb. 2001 to Feb. 2002 at the lower part of the Han River. During the study, a total of 267 taxa which were composed of 114 green algae, 104 diatoms, 22 blue-green algae, 13 chrysophytes and 2 dinoflagellates were observed. The standing crops of phytoplankton communities were ranged from 1.30 ${\times}10^6$ cells ${\cdot}l^{-1}$ to 37.47 ${\times}10^6$ cells ${\cdot}l^{-1}$. The dominant species were 11 taxa including Pediastrum duplex, Scenedesmus quadricauda in green algae, Osillatoria limosa, Microcystis aeruginosa, Merisomorpedia sp., Phormidium sp. in blue-green algae, and Asterionella gracillima, Aulacoseira granulata, Fragilaria crotonensis, Stephanodiscus hantzschii f. tenuis, Synedra acus in diatoms. Asterionella gracillima and Stephanodiscus hantzschii f. tenuis were abundant at every station from winter to spring. Stephanodiscus hantzschii f. tenuis occupied the highest dominant ratio and standing crop. From summer to autumn, dominant species were Aulacoseira granulata at all stations and blue-green algae such as Osillatoria limosa, Microcystis aeruginosa, Merisomorpedia sp. at some stations. These 4 species were mostly present at the lower stations 4, 5, 6 and very few at the upper stations 1, 2, 3.

장류의 표준규격

정승원,Jeong, Seung-Won 한국식품연구원 1995 食品技術 Vol.8 No.4

후두개에 발생한 방선균 감염 1례

정승원,김경래,태경,김윤정,Jeong, Seung-Won,Kim, Kyung-Rae,Tae, Kyung,Kim, Yun-Jeong 대한기관식도과학회 2010 大韓氣管食道科學會誌 Vol.16 No.2

We report a case of actinomycotic infection in epiglottis. Actinomycosis in the head and neck area is relatively rare but extremely rare in the larynx. A 63-year old man presented with continuous discomfort of the throat while swallowing. He had a history of oral injury caused by a fish bone a few weeks prior. Upon Examination with a flexible laryngoscope, a whitish round mass was noted at the lingual surface of the epiglottis. Under local anesthesia, a punch biopsy was performed and showed the typical features of actinomycosis. The mass was removed using a Diode laser under suspension laryngoscope. Additive oral antibiotic therapy was done for 2 weeks. No definite recurrence was noted at the operation site and the patient is now free of disease.

폴리머 기판위에 형성된 나노구조제어 알루미나의 캐패시터 특성

정승원,민형섭,한정환,이전국,Jung, Seung-Won,Min, Hyung-Sub,Han, Jeong-Whan,Lee, Jeon-Kook 한국재료학회 2007 한국재료학회지 Vol.17 No.2

Embedded capacitor technology can improve electrical perfomance and reduce assembly cost compared with traditional discrete capacitor technology. To improve the capacitance density of the $Al_2O_3$ based embedded capacitor on Cu cladded fiber reinforced plastics (FR-4), the specific surface area of the $Al_2O_3$ thin films was enlarged and their surface morphologies were controlled by anodization process parameters. From I-V characteristics, it was found that breakdown voltage and leakage current were 23 V and $1{\times}10^{-6}A/cm^2$ at 3.3 V, respectively. We have also measured C-V characteristics of $Pt/Al_2O_3/Al/Ti$ structure on CU/FR4. The capacitance density was $300nF/cm^2$ and the dielectric loss was 0.04. This nano-porous $Al_2O_3$ is a good material candidate for the embedded capacitor application for electronic products.

한강 하류의 환경학적 연구 6. 부영양 요인의 통계적 해석

정승원 ( Jeong Seung Won ),이진환 ( Lee Jin Hwan ),허회권 ( Heo Hoe Gwon ) 한국하천호수학회 2004 생태와 환경 Vol.37 No.1

In order to reveal the relationship between the concentration of chlorophyll-α and the environmental factors affecting eutrophication, the present study was biweekly conducted at 6 stations in the lower part of the Han river during the period from Feb.24,2001 to Feb.9,2002. Water temperature was changed from 0.5℃ to 26.4℃,pH was 5.77∼8.99,DO 3.15∼14.36㎎L^(-1),BOD 0.90∼7.45㎎L^(-1),and COD 1.16∼9.13㎎L^(-1).TN and TP were ranged from 1.68∼20.96㎎L^(-1),and 0.02∼1.17㎎L^(-1),respectively.NH₄(+)-N,NO₃(-)-N,and PO₄(3-)-P were ranged from 0.56∼3.60㎎L^(-1),0.03∼7.29㎎L^(-1),and 0.002∼0.754㎎L^(-1),respectively. Chlorophyll-α was extensively changed from 2.29㎍L(-1)to 136.28㎍L(-1)by month and stations. Results of nutrients indicated the eutrophic level in this area and water quality was the gradual worsening in the lower stations than those of upper stations during the period studied. The Pearson correlation analysis between the concentration of chlorophyll-α and the environmental factors indicated that BOD,COD,pH,NH₄(+)-N,TP,TN, conductivity and PO₄(3-)-P were positive correlation, but NO₃(-)-N was negative. The environmental factors investigated using the principal component method could be triparted. The first factor group included conductivity, BOD, COD, TN, TP,NH₄(+)-Nc,PO₄(3-)-P and SS, the second WT and DO, and the third pH and NO₃(-)-N. Using the stepwise regression analysis, chlorophyll-α was under the influence of conductivity,PO₄(3-)-P,NO₃(-)-N and NH₄(+)-N. Chlorophyll-α=0.3661×(Conductivity)-0.3592×(PO₄(3-)-P)-0.3449×(NO₃(-)-N)+0.4362×(NH₄(+)-N)

트로코이드 펌프 설계방법 및 내부 유동 해석연구

정승원(Jeong Seung Won),정원지(Chung Won Jee),김명식(Kim Myung Sik),전주열(Jeon Ju Yeal) 한국생산제조학회 2014 한국생산제조학회지 Vol.23 No.1

This paper provides a methodology for extracting design data from the three-dimensional design software SolidWorks<SUP></SUP>®<SUP></SUP>, which isbased on the existing trochoid pump design equations thatare used by hydraulic field engineers. The data extracted from the SolidWorks<SUP></SUP>®<SUP></SUP> model are input to a hydraulic analysis software AMESim<SUP></SUP>®<SUP></SUP> model todetermine the design factors that can influence the properties of a trochoid pump. On the basis of the simulation results, this paper proposesa methodto reduce the flow loss by adjusting the outlet angle of the trochoid pump. This proposal was verified by using actual experimental results, which confirmed that adjusting the outlet angle can increase the flow rate. Hence,the results presented in this paper can contribute to the prototyping of a trochoid pump by reducing the cost associated with a trial-and-error design.

의료서비스 복합화의 경영효과 분석: 일본의 사례

정승원 ( Seung Won Jeong ),이노우에유스케 ( Yusuke Inoue ),서영준 ( Young Joon Seo ),김연희 ( Yun Hee Kim ) 한국병원경영학회 2009 병원경영학회지 Vol.14 No.2

This study purports to verify managerial effectiveness of the integrated delivery system(IDS) of Japanese health care institutions through comparing the managerial performance between hospital groups providing with both acute and nursing care and those with acute care only. Data on the managerial performance of 697 hospitals providing with nursing care together and 819 hospitals providing with acute care only were collected from Japanese Central Social Insurance Medical Councils 2001, 2003, 2005, and were analyzed using mean comparison test(t-test) between the two groups. The results revealed that there were significant differences between the two groups in such indicators as ratio of material cost, labor cost, depreciation rate, total margin, operating margin, average number of outpatient per day, average revenue of an inpatient per day, total amount of labor cost, gross revenue per employee, and labor productivity. However, we could not find out any consistent evidence which support the effect of integrated delivery system on the hospital managerial performance. Further discussion was made on the limitation of the study and future research agenda relevant to the topic.

역량강화적 직업재활서비스 방법의 구성요인에 관한 연구

정승원(Seung Won Jeong),정지훈(Ji Hoon Jung),박세진(Sae Jin Park) 한국직업재활학회 2007 職業再活硏究 Vol.17 No.2

본 연구의 목적은 직업재활서비스에서 실천해야 할 역량강화적 방법들을 문헌연구를 통해 살펴보고, 직업재활서비스에서 역량강화적 방법의 구성요인을 추출하는데 있다. 직업재활에서 이용자의 역량강화를 촉진하기 위한 서비스 방법에 관한 문헌연구 결과 다음의 세 가지 차원의 방법들이 도출되었다. 첫째, 상담자와 이용자의 협력관계가 중요시되는 방법(상담자-이용자 협력관계), 둘째, 정보에 근거한 선택에 초점을 두는 방법(정보에 근거한 선택), 셋째, 자기결정 훈련과 지원에 역점을 두는 방법(자기결정)이다. 세 가지 차원의 방법을 구성하는 핵심적인 요인들을 파악하기 위하여 구체적인 서비스 방법들을 포함하는 ‘역량강화적 직업재활서비스’ 문항을 개발하였다. 문항개발을 위해 1, 2차 전문가 자문과 예비 조사 등을 실시하였다. 242명의 직업재활서비스 이용자가 응당한 ‘역량강화적 직업재활서비스 실천에 관한 설문조사’ 결과를 바탕으로 탐색적 요인분석을 하여 척도의 타당도 검증과 요인 구조를 확인하고, Cronbach α 계수를 구하여 신뢰도를 검증하였다. 분석 결과 첫째, 상담자-이용자 협력 차원은 단일 요인으로 나타났으며 ‘협력관계’ 요인으로 명명하였다. 둘째, 정보에 근거한 선택 차원의 하위 요인은 ‘서비스 정보 공유’ 요인과 ‘선택행동 훈련’ 요인으로, 셋째, 자기결정 차원의 하위 요인은 ‘자기결정적 행동’ 요인과 ‘자기결정을 위한 기관지원’ 요인으로 추출되었다. The purpose of this study was to identify the Empowermental Vocational Rehabilitation methodes and their composition factors. Data was collected from service users who had been using vocational rehabilitation services for more than 1 year or who had already acquired a job after more than 1 year of services at the organizations as follows : the Vocational Rehabilitation Facilities, the Vocational Competency Development Centers. the Vocational Rehabilitation Centers. A total of 340 answers from respondents were retrieved. Excluding replies which could be defined as being insincere, 242 surveys were used as the subjects for the analysis. To accomplish the study, an Exploratory Factor Analysis with Principal Component Extraction and Varimax Rotation was used. The results of this study were as follows : The key methods of vocational rehabilitation for empowering consumers were working alliances, informed choice, and self-determination. The results of the exploratory factor analysis yielded results which showed that the Working Alliance had a single factor. Informed Choice had two factors named as service information and choice skill training respectively. Self-determination also had two factors, which were named as self-determinative activities, and organizational supports for user s self-determination.

보호작업시설 신규사업에 대한 비용편익분석

정승원 ( Seung-won Jeong ),박경순 ( Kyung-soon Park ),이근용 ( Keun-ryong Lee ) 한국특수교육문제연구소 2005 특수교육저널 : 이론과 실천 Vol.6 No.2

본 연구는 장애인 보호작업시설의 신규사업에 대한 사업의 경제적 타당성 및 효과를 분석하는데 그 목적이 있다. 연구 방법은 보건복지부의「장애인직업재활시설 신규사업지원 프로그램」에 선정된 나눔터를 대상으로 비용편익 분석을 실시하였다. 분석 자료는 신규사업지원금이 지급된 2003년 7월부터 신규사업이 본격적으로 실시된 시기인 2004년 12월까지 발생된 신규사업 관련 모든 구성요소들을 포함시켰다. 비용편익분석 결과 순편익과 편익비용비 분석에서 편익이 비용보다 큰 것으로 나타나 이신규사업은 사업의 경제적 타당성이 있는 것으로 검증되었다. 또한 화폐가치로 분석될 수는 없지만 의미 있는 여러 가지 무형의 편익들이 있는 것으로 나타났다. 정부의 적절한 경제적지원, 나눔터의 생산라인의 기계화와 기술력 축적에 대한 노력이 생산성과 임금 향상, 생산의 안정화와 같은 효과를 가져왔고, 보호작업시설의 사업적 기능이 향상되었음을 알 수 있었다. 따라서 정부는 보호작업시설의 신규사업 지원을 지속적으로 추진하고 보호작업시설들은 사업적 기능을 보강하기 위한 합리적인 사업 추진 방법을 모색하도록 제언하는 바이다. The purpose of this study is to verify the economical validity of new business of a sheltered workshop, NaNumTeo through the cost-benefit analysis and analyze the effectiveness of it. This research extracts the ingredient of the costs related to the new business included the cost founded by Ministry of health and welfare for「New Business Program of Vocational Rehabilitation Facilities」, calculated the net benefit and benefit-cost ratio through the benefit of the new business. The data analysis included all the ingredients of the new business, which generated between the period of 2003/7 when the new business support funding was made and 2004/12 when the new business was actively operated. The economical validity of this new business is verified since the benefit is turned out to be better than cost in terms of both net benefit and benefit-cost ratio. The analysis shows that improvement of productivity and wage, and stabilization of production is brought by the reasonable economical support of government for sheltered workshops, and the effort of the facility which has attempted to change toward mechanized product line, accumulating of technology. More than that, there has been various intangible benefits which can not simply account monetary value. Therefore, the government should continuously maintain the support toward the new business of sheltered workshop and find reasonable business development method to strengthen the commercialization of sheltered workshop.