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초등학교 학생에 있어서 환경 소음과 스트레스와의 관련성
강현경,황인철,옥치상,탁효정 고신대학교보건과학연구소 1999 보건과학연구소보 Vol.9 No.-
In order to understande the relationship the fourth grade students' stress and environmental noise, the authors surveyed 421 persons and the sound environment of eleven classrooms and their surroundings of five elementary schools in Pusan area. Both questionnaire and 1/3 octave band noise measuriment were administrated. Each sound level at class room (10-minute recess), corridor, classroom (lesson), playground, and gate was highest mostly at 800Hz, appeared to be 71.70.2 dB, 65.78.7dB, 57.57.9dB, 53.91.2 dB, and 53.52.6 dB respectively. Sound levels at frequencies less than 4,000 Hz were in range of 46.7 dB to 71.7dB, while those over 10,000 Hz were background level of 14.3 dB to 39.6 dB.Noise in corridor was higher than play ground and gate, this fact supports that school buildings seemed to bo little affected on environment sound but the sound proof of most classrooms wall was very poor. In order to grasp how sound affects on stress, multiple regression analysis using backward variable elimination method was conducted, and the resulting equation was as follows(R = 0.186, R2 = 0.035, adjusted R2 = 0.027); Stress = 2.221 + 0.459*(study disturbance due to home noise) + 0/607*(home noise) + 0.227*(sound in lesson).
실선시험기법을 이용한 다방향파중에서의 선박의 응답추정법
조효제,강일권,김종철 韓國海洋大學校 附設 海洋科學技術硏究所 1998 硏究論文集 Vol.7 No.-
In this study, the frequency transfer function of motions are predicted from the result of a full-scale seakeeping trials. Because the real sea has the characteristics of multi-directional waves, we compare the results in the one directional waves with ones in the directional waves. For calculation of the frequency transfer function in the directional waves, Takezawa's inverse estimation method was introduced and the frequency ranges were divided into three parts in order to consider following seas. The full-scale seakeeping trials was executed in the south sea of Korea using the stern trawler. Those results show that analysis method of the multi-directional waves is more reliable than that of one directional waves, and confirm the possibility of applying this method to the full-scale seakeeping trials.
박정란,강진형,구효정,노지영,류형철,박상욱,고동현,조일환,이주영,황다니엘,김인경 한국약제학회 2003 Journal of Pharmaceutical Investigation Vol.33 No.2
Selective COX (cyclooxygenase)-2 inhibitors including celecoxib have been shown to induce apoptosis and cell cycle changes in various tumor cells. New inhibitors are recently being developed as chemomodulating agents. We evaluated celecoxib and screened 150 synthetic compounds for anti-proliferative activities in vitro. Effects of celecoxib on COX activity, cell growth, cell cycle distribution, and apoptosis induction were determined in A549 COX-2 overexpressing human non-small cell lung cancer (NSCLC) cells. The COX inhibition of celecoxib increased with concentration up to 82% at 1μM after 24 hr exposure. Forty μM and 50μM of celecoxib induce G_1 arrest, and TUNEL-positive apoptotic cells, respectively. Among 150 compounds, several compounds were selected for having greater COX-2 inhibitory activity and higher selectivity than celecoxib with growth inhibitory activity. Celecoxib showed concentration-dependent COX inhibitory activity, and ability to induce cell cycle arrest and apoptosis in human NSCLC cells in vitro. Among synthetic analogues screened, several compounds showed promising in vitro activity as COX-2 inhibitory anticancer agents, which warrant further evaluation in vitro and in vivo.
特用資源植物의 硏究 : 한국임학회지에 게재된 논문을 중심으로 Based on the Articles Published in the Journal of Korean Forestry
이재선,김철우,배찬호,송재모,강효진,황석인,문흥규 江原大學校 森林科學硏究所 2003 Journal of Forest Science Vol.19 No.-
한국임학회지 (1962년의 1호~2002년의 91권 6호)에 게재된 특용자원식물 관련 논문에서 식·음용식물, 약용식물, 사료식물, 조경식물, 섬유식물, 산업용식물 및 밀원식물로 분류하고 그 내용에 따라 입지환경, 생태, 생리, 번식, 조림(또는 무육, 재배), 유전·육종, 분류(또는 식별), 병·충해와 방제, 동물피해와 방제, 성분분석, 식생정보, 생물공학, 경영·경제 및 총설로 나누었다. 총 1,434편의 발표 논문 중 유용식물자원을 대상으로 한 논문은 27.6%를 차지하는 396편이었고, 내용은 식생정보 60편(15.2%), 생리 56편(14.1%), 유전·육종 56편(14.1%), 번식 53편(13.4%) 및 생태 37편(9.3%)이었다. 조림(무육·재배)은 11편(2.8%)으로 특용자원식물의 규모경영이 이루어지지 않고 있음을 시사하고 있으며, 이것은 경영·경제 분야가 6편(1.5%)인 것과 맥을 같이 하고 있었다. 연구대상 식물은 잣나무(42편), 아까시나무(23편), 밤나무(14편) 및 은행나무(14편) 순으로 높았고, 이 식물들과 관련한 연구내용은 번식, 생리, 유전·육종, 생태 및 병·충해 순이었다. 연구의 목적, 내용, 결과 및 대상식물 등을 고려하여 보면, 1) 초본식물에 대한 보다 많은 연구, 2) 타산업 또는 학분 분야와의 공동연구, 3) 자원 보전적 연구 및 4) 연구주체자 간의 연구결과의 공유 등이 매우 요망된다. The articles, published in the Journal of Korean Forestry from Number 1(1962) to number 6, Volume 91(2002), were surveyed and investigated for the research trend analysis about resource-plants for special use or purpose, i.e edible plants, medicinal plants, feed resource, landscape plants, fiber plants, industrial usage, and bee plants. If the purpose or subject matter of the research was construction or furniture timber production, mushrooms and/or pulp and Paper, such research was not included in this study. These articles were classified again depending on the content of research into 14 categories : habitat environment, ecology, physiology, propagation, silviculture(tending and culture), genetics and breeding, identification, insect and disease control, animal-related research, cemponent analysis, vegetation survey, biotechnology, management, and review. Among the total 1,434 articles published, 396 ones (27,6%) were related with plants for special use or purpose. Vegetation survey was 60(15.2%) ; physiology 56(04.1%) ; genetics and breeding 56(14.1%) ; propagation 53(13.4%) ; and ecology 37(9.3%). Siviculture research field included 11 articles (2.8%), which indicates that the management of resource-plants is to far from economic income as seen in the low number of management research filed articles, i. e., only 6 reports(1.5%). Korean white Pine was most popular for research and included 42 articles ; Robinia pseudoacacia 23 Castanea crenata 14 : and ginkgo tree 14, Research related with these species had focused mainly or propagation, physiotogy, genetics and breeding, ecology and pest control. Based on this survey and analysis, the followings are suggested : 1. More research is required on forest herbaceous plants. 2. Cooperative research work with other industrial and/or scientific area is recommendable for commercialization including medicine, cosmetics, and food etc. 3. Research resource-plant conservation. which includes biology, social education and policy, should be supported for next generation. 4. Mutual correspondence and information exchange about the research results between researchers and institutes is more necessary than now.
개선된 다출력 동적 CMOS 설계 방식을 이용한 고성능 32 비트 CLA가산기 설계 및 구현
송근호,방만식,서정훈,한석붕,이효상,김강철 慶尙大學校生産技術硏究所 1997 生産技術硏究所論文集 Vol.13 No.-
In this paper, we designed, implemented and evaluated 32-bit CLA adder with the ENMODL(enhanced NORA Multiple Output Domino Logic) logic style which is new dynamic CMOS logic. The circuit is implemented using 0.8㎛ CMOS double-metal process technology. It operates stably and the addition time is less 3.9 ns. The ENMODL logic style can improve the performance in the high-speed computing circuits depending on the degree of recurrence.
A Case of Systemic Amyloidosis Found by Goiter in Crohn’s Disease
Hyo Chul Kang,Seong Ran Jeon,Hyun Gun Kim,Ho Eun Jung,Jin Nyoung Kim,Dong-Jae Han,So Young Jin,Jin-Oh Kim 순천향의학연구소 2013 Journal of Soonchunhyang Medical Science Vol.19 No.2
Secondary amyloidosis is characterized by accumulation of insoluble, fibrous amyloid proteins in various tissues and organs, accompanied by infectious or inflammatory diseases. Amyloidosis may involve the thyroid, gastrointestinal tract, kidneys, liver, or bone marrow. Amyloidosis as a complication of Crohn’s disease is rare but serious, and may worsen the prognosis. We have experienced a case of amyloid goiter and gastrointestinal amyloidosis secondary to Crohn’s disease. A 74-year-old female patient with Crohn’s disease was admitted to Soonchunhyang University Hospital with general weakness and poor oral intake. Anterior-neck diffuse goiter and tenderness around the navel were found. Amyloid goiter and gastrointestinal amyloidosis diagnosed by sonoguided needle biopsy of the thyroid and endoscopic biopsies of the stomach and duodenum.