연령증가에 따른 혈압요소들의 좌심실비대 및 관동맥질환과의 관련성

박재석,박창규,박미영,박재형,김용현,나진오,신성희,서순용,홍순준,박성미,임홍의,김응주,서홍석,오동주,노영무 대한순환기학회 2004 Korean Circulation Journal Vol.34 No.2

부추 전용 포장 결속기 개발

김용석(Yong-Seok Kim),박성희(Sung-Hee Park),박태표(Te-Pyo Park),양순용(Soon-Young Yang) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5

An Allium-odorum is difficult material to handling, because it is soft and weak as mechanical. For bundling work of allium-odorum, we must grip in the bundle shape of unit weight, however, it is difficult that grip allium-odorum by hand because the bundle bulk is very big. Especially, in packing work, the bundle shape of allium-odorum package than other vegetables is very important, because difference of a price becomes much according to the bundle shape. In this paper, we propose bundling mechanism for a quadrangle shape in bundle shape, and semi-automatic bundling mechanism that makes use of a eccentric roller and a triangularity link. We carry out mechanical modeling and analysing respectively using the CATIA V5 and SimDesigner. We manufactured the prototype of the semi-automatic bundling machine, and got satisfied result through field test. And this machine will be commercialized and announced soon.

반응조 나열법을 이용한 하천 모델 개발

박석순,이용석,박민대 江原大學校 附設 環境硏究所 1991 環境硏究 Vol.8 No.-

The Stochastic Time River Elevator Approach Mode(STREAM)which is a multiconstituent stream ecosystem model was exclusively developed in this study. The formulation of STREAM is based on the Cell-In-Series(CIS)approach where stream is assumed as a series of completly mixed flow reactors. This approach is to use a Lagrangian coordinate instead of an Eulerian such that it can overcome the limitations repoted in the previous stream models, such as QUAL2E.Major constituents included in STREAM are Dissolved Oxygen(DO), Biochemical Oxygen Demand(BOD), Suspended Solid(SS), Coliform Bacteria, Nitrogen Series, Phosphorus Series, and Phytoplankton. Dissolved oxygen change caused by Sediment Oxygen Demand(SOD) and respiration and photosynthesis of periphyton and macrophyte are included in the model structure. STREAM was programed in a BASIC language and graphic was attached. In order to validate STREAM model, both STREAM and QUAL2E (developed by United States Environmental Protection Agency) were applied to the South Branch of Han River under the same amibient condition. The result indicated that STREAM could simulate most water qualities with same accuarcy and less computer time than QUAL3E.

고온고습으로 저장된 백미의 이화학적 및 취반 특성

박석규,전순실,박미연 순천대학교 기초과학연구소 1994 基礎科學硏究誌 Vol.5 No.-

The quality difference of milled rice stored at a low temperature and optimum humidity(LTH) and a high temperature and humidity (HTH) was determined by the methods of acidity of fat, brown color index, reducing sugar and microflora. Moisture contents of milled rice stored at LTH and HTH for 10 weeks were 14.7% and 19.5%, respectively. Moisture content after 8 weeks of LTH and 4 weeks of HTH exceeded 13% on dry basis, growth-limiting moisture of mold. Brown color index and reducing sugar contents of milled rice stored at HTH were slightly higher than those of LTH. There was a notable difference in acidity of fat between milled and brown rice stored at HTH. The apperance(p<0.05) and texture(p<0.01) of cooked rice after storage for 10 weeks at LTH and HTH were significantly different in sensory evaluation with no significant difference in odor and taste. Mean values of breaking test in rheometer were better in LTH than in HTH for taste score. Growth of mold and bacteria in rice were not increased by storage. Rice weevil exhibited imago in brown rice and milled rice after storage of 5 weeks and HTH. Milled rice stored at LTH for 2 weeks did not absorb Kimchi odor from refrigerated chamber.

K이 흡착된 Si(111)7×7표면에 대한 RHEED 연구

박종윤,이순보,이경원,안기석,신익조,강건아 성균관대학교 1990 論文集 Vol.41 No.2

상온 및 200℃∼600℃의 Si(111) 7×7 표면에 칼륨(K)을 증착하였을 때의 표면격자구조 변화를 RHEED로 관측하였다. K 증착시 Si(111)7×7 기판의 온도가 상온인 경우, 어느 일정한 증착시간(포화덮임률에 도달했다고 추정되는 증착시간)이 지난 후에는 원래의 깨끗한 Si(111)7×7 패턴과 유사한 Si(111) 7×7-K 패턴이 관측되었고, 증착시간을 증가시켜도 RHEED 패턴은 변화하지 않았다. 이것을 annealing하면 350℃까지는 RHEED 패턴에 변화가 없다가 그 이상의 온도가 되면 서서히 원래의 7×7 패턴으로 되돌아가기 시작한다. Si(111) 7×7기판의 온도를 200℃∼600℃로 유지하면서 K을 일정시간(450℃에서 3×1이 형성되는 증착시간)이상 증착시킨 경우에 250℃까지는 상온의 경우와 비슷한 형태의 변형된 7×7 패턴이 관측되고, 300℃∼550℃일때는 3×1, 550℃ 이상에서는 1×1 구조가 관측되었다. 이때 300℃∼550℃에서 형성된 Si(111) 3×1-K 구조는 450℃에서 1분 정도 annealing 하면 항상 Si(111) 1×1-K 구조로 상전이가 일어남을 관측하였다. Potassium adsorbed surface structures of Si(111) 7×7 surface at room and high temperatures(200℃∼600℃) were investigated by RHEED. Potassium adsorption on the Si(111) 7×7 surface to saturated coverage at room temperature changed the RHEED pattern of Si(111) 7×7 to Si(111) 7×7-K. Subsequent heating of the Si(111) 7×7-K surface above 350℃ results in a Si(111) 7×7 with desorbing K. The RHEED pattern of the K-adsorbed on the Si(111) 7×7 surface up to the adsorption temperature of 250℃ was the modified 7×7 pattern, quite similar to that of the Si(111) 7×7-K, observed at room temperature. The 3×1 structure was observed in the temperature of adsorption between 300℃ and 550℃. Regardless of the adsorption temperature, a phase transition always took place from the Si(111) 3×1-K structure to Si(111) 1×1-K after annealing at 450℃ over 1 minute.

미국 뉴저지주 매차포닉강의 수질 모델 연구: QUAL2E 모델 적용

박석순,크리스토퍼 유클린 江原大學校 附設 環境硏究所 1990 環境硏究 Vol.7 No.-

미연방 환경청에서 개발된 하천 수질 모델 QUAL2E를 이용하여 미국 뉴저지주 매차포닉강의 종합적 수질 모델을 형성하였다. 총 15.3㎞의 하천 구간을 8개의 소구간으로 분할하였고 각 구간은 16.9월과 11월에 하천 유량이 갈수량을 나타낼 때 각각 3일간 연속적으로 얻어졌다. 모델은 9월 실측 자료를 이용하여 보정되었고 11월 실측 자료로 검정되었다. 모델된 수질 자료는 용존산소(DO), 생화확적 산소 요구량 (BOD_(5)),부유성 고형물질(TSS) A comprehensive water quality model was constructed for the Matchaponix Brook, New Jersey, U.S.A., using the USEPA Enhanced Stream Quality Model (QUAL2E). The study area (15.3 ㎞)was divided into eight (8) reaches. Each reach was then subdivided into uniform computational elements of 160.9m. Field Data were obtained from two synoptic field sampling surveys performed during summer warm water, low flow (September,)

일본 율령국가의 왕권과 대 신라외교 : 8세기 사절 방환 사례를 중심으로

朴昔順 한국고대사학회 2002 韓國古代史硏究 Vol.25 No.-

In the ancient statute of Japan, Shilla is described as a 'barbarian country(蕃國)'. Japanese scholars have in general interpreted it as an indication of superiority that Japan had felt over Shilla. In terms of the diplomatic relationship in the 8th century with Shilla, Japan has explained the bilateral tie based on how the ancient Japan perceived the other part of the world with an emphasis on the concept found in the statute. Regarding this, the paper looks at the relationship between the ancient Japan and Shilla with its focus on an article of the 'Return of Envoys from Shilla' and the domestic political situation of Japan. In particular it was reviewed from the point of sovereignty of ancient Japan. In a nutshell, 'Return' implies a simple return and the expression was widely used in the east Asian region back then. It was also revealed that the Japanese government set certain conditions on which envoys from Shilla are returned without being allowed them to enter the capital depending on domestic circumstances. And most of all, it should be kept in mind that political request made by the Japanese sovereignty officially has many things to do with the issue of the 'Return' of envoys from Shilla.

사회체육 발전과 프로그램 관리에 관한 연구

朴淳晋,韓利錫 龍仁大學校 1992 용인대학교 논문집 Vol.8 No.-

The most important use of the program life cycle in recreation lies in the development of a program audit. Life cycle management should consider not only individual program life cycles but also the total mix of program life cycle. This is done by prudent introduction of new programs, pruning of old programs, and careful allocation of money and manpower among existing programs according to their potential for attracting users. The fallowing steps suggest a procedure for undertaking a program aduit. 1) In order to identify a true life cycle curve, data adjusted to allow for population changes Thus a ratio such as attendance per thousand population most appropriated. 2) Project program participation based upon all of the information gathered.

사회환경교육의 교육과정 표준화 모형 및 통합프로그램 개발연구

박석순,최돈형,성효현,허명,강명희,이숙임,남상준 이화여자대학교 환경문제연구소 1998 이화환경연구 Vol.2 No.-

This paper presents the development of standardized modules and an integrated program which will be used for social environmental education. The study objectives are to develop modules which are based on various environmental topics, to relate the regional environmental topics to the educational modules and program, and to include the demand of students in the modules and program. Literature and questionary surveys, as well as, module development method were utilized as research tools. The titles of developed modules are "The Green Plant Earth," "Unexpected Resources: Save Resources and Recycle", "Water as the Mother of All Lives", "The Blue Sky with Clean Air", and "Soil as the Home of All Living and Non-living Things". It is hoped that the developed modules and program are utilized as course materials and curriculum for social environmental education in various educational institutes. The study results will be materialized as multimedia in near futher.

미국 뉴저지주 매차포닉강의 수질 모델 연구 : 오염 부하량 분석

박선순,크리스토퍼 유클린 江原大學校 附設 環境硏究所 1990 環境硏究 Vol.7 No.-

보정 및 검정 완료된 수질 모델을 이용하여 폐수 처리장 확장에 따른 안정 오염 부하량 분석이 실시되었다. 분석한 수질 현상은 생활 하수 유입 하천에서 일반적으로 나타나는 세가지 주요 현상 즉, 1) 용존산소, 2) 암모니아 독성, 그리고 3) 부영양화이다. 여름과 겨울에서의 갈수유량(7Q10)과 이때 나타나는 온도를 예측시 하천 임계 조건으로 가정하였다. 이 예측은 하천 수질에 악영향을 미치지 않는 방류수 수질 기준을 여름과 겨울에서 각각 결정하였으며 Utilizing the constructed water quality model, the waste load allocation analysis was performed for the purpose expansion of wastewater treatment plant. The projected water quality parameters were three major aspects in the streams of municipal wastewater effluents: 1) dissolved oxygen level, 2) ammonia toxicity, and 3) nutrient/eutrophication. The 7Q10 flow rates for both summer and winter periods and the temperatures associated with these periods were used as the critical stream conditions The projections determined the acceptable treatment levels for the purposed discharges during winter and summer periods, including dissolved oxygen, biochemical oxygen demand, ammonia nitrogen, total kjeldahl nitrogen, total organic phosphorus, total dissolved phosphorus, pH, and alkalinity.