사방격자에 의해서 만들어진 주기적인 무아레 무늬를 이용한 물체의 형상측정

조선미,김영유,류지욱,육근철 公州大學校 基礎科學硏究所 1997 自然科學硏究 Vol.6 No.-

사방격자를 이용해서 물체의 형상을 측정할 수 있는 방법을 제안하였다. 카메라와 광원의 위치좌표는 변화시키지 않고 사방격자의 피치 간격을 일정한 비율로 변화시키는 방법과, 사방격자의 피치간격은 변화시키지 않고 광원과 카메라 사이의 평면 위치좌표를 변화시켜서 주기적인 무아레 무늬를 얻었으며 이를 이용하여 무아레 무늬의 절대차수를 결정할 수 있는 새로운 방법을 제안하였다. We present a simple method of determining the absolute order using periodic moire fringe structures formed by criss-crossed gratings. We selected two experimental methods that one is fixed the position coordinates of light sources and camera, and than change the pitch distance of criss-crossed gratings. Another method are fixed the pitch distance of criss-crossed gratings and than change the position coordinates of light sources and camera. As a results. We could determined the absolute order only once a photographing the objects.

침엽수로부터 발생되는 방향성 테르펜의 배출속도 비교 연구

김조천,홍지형,강창희,선우영,김기준,임준호 한국대기환경학회 2004 한국대기환경학회지 Vol.20 No.2

In order to investigate the composition ratio and the emission rate of monoterpenes emitted from coniferous trees during summer, the enclosure chamber experiments were carried out for two tree species (Pinus densiflora and Pinus rigida). The major monoterpenes from the pine trees were α-pinene, β-pinene, myrcene and β-phellan-drene. There was no difference of the composition ratio between two sites for P. densiflora, but the difference was observed for P.rigida, Clearly, the ratio of β-pinene (26.1%) for P.rigida was higher than that of β-phellandrene (12%) at the Gumsung mountain site, but the ratio of β-phellandrene (22.2%) was higher than that of β-pinene (9.9%) at the Chiri mountain site. Particularly, the composition ratio of β-phellandrene was higher than that of β-pinene for P.densiflora, and the opposite trend was found for P.rigida at the Gumsung mountain site. The characteristics of the composition ratio between two species were similar at the Chiri mountain site. As a result of the emission rate measurements, it was observed that both sites did not show any significant β value (slope between emission rate and temperature) and ERs (Standard Emission rate at 30℃) difference. However, the β value and ERs at the Chiri mountain site were slightly greater than those of Gumsung mountain site for both pine species. P.densiflora(1.703 and 1.971㎍C/gdw/hr) showed the higher monoterpene ERs than those of P.rigida (0.572 and 0.698 ㎍C/gdw/hr) at both sites.

여름철 참나무속의 이소프렌 배출속도 비교에 관한 연구

김조천,김기준,홍지형,선우 영,임수길 한국대기환경학회 2004 한국대기환경학회지 Vol.20 No.1

In order to compare the NVOC (Natural Volatile Organic Compound) emission rates from oak trees, the emission rates of isoprene were quantitatively measured in situ based on tree species and region. As a result, the emission rates from Quercus serrata T. were found to be 1000 times greater than those from Quercus acutissima C. However, the emission rates at the Chiri and Gumsung mountain sites did not show any significant differences in summer. Cuvette tests using four different oak species also supported that there was a tremendous difference in emission rates between Quercus serrata T. and Quercus acutissima C. It was found that the emission rates from the trees were highest on the order of Quercus serrata T., Quercus aliena B., Quercus acutissima C. and Quercus variabilis B.

근대 용두산공원의 공간변천에 관한 연구

정지영,강영조 東亞大學校 建設技術硏究所 2006 硏究論文集 Vol.29 No.2

Urban park concept was introduced in korea since opening modernized Busan port by Japanese. A type of urban park appeared first time in Korea as a use of a shrine on Mt. youngdu, Busan. The objective of this study is to determine the characteristics of spatial changes of Yongdusan Park since 1898 by investigating historical background. To carry out this objective, five different time period was set up based on the spatial changes of Yondgusan Park. In 1678, Jong Eui-Jin who was the lord of Daema island established small shrine in Mt. Yongdu. For a fairly long time, this shrine had keeped a space of popular belief. The shrine was newly reconstructed and it got a name, Yongdusan shrine, in 1899. Since then Yongdusan shrine had expanding. In 1916, modern urban park was made around Mt. Yongdu. It 's due to the characteristic of Japanese shrine which are established in scenic spot. Although the park was popular, Yongdusan Park disappeared because of the raising in status as National shrine in 1936. And then Mt. Yongdu was used as holy place of Japanese before Iiberation(1945).

신규간호사와 프리셉터가 인지하는 프리셉터의 교수효율성 비교

김지양,김영선,김춘실,박현숙,신미영,윤연숙,조유숙,박미미,유문숙 한국간호과학회 간호행정학회 2009 간호행정학회지 Vol.15 No.2

Objective: The purpose of this study was to compare preceptors and new graduate nurses on their perception of preceptor teaching effectiveness. Methods: The participants were 90 new nurses and 90 preceptors who worked in A medical center. The data were collected from July 1 to September 30, 2008. A cross-sectional descriptive survey was done using a structured questionnaire. Results: New nurses' perception (4.07±.44) of the preceptor teaching effectiveness was significantly higher than perception of the preceptors (3.57±.37). Fifty five percent of new graduate nurses reported a lack of coherence in the preceptor's practice guidelines. For 5 causal factors classified on the teaching effectiveness, the factor of 'Professional knowledge and ability' showed the highest score, but 'Interpersonal and communication skill' got lowest score for both group. Preceptors responded that they did not have enough time to teach well because of their heavy workloads. Conclusions: These results suggest that the preceptors need appropriate compensation and education opportunities, and new graduate nurses need consistent education by the teaching professionals. Therefore, it is important to give preceptors full charge of the preceptorship. Also, it will be necessary to develop education programs to enhance interpersonal and communication skill for preceptors and new nurses.

플륨 모니터링에 의한 SM45C 레이저 용접특성 평가

유영태,김재열,노경보,양동조,오용석,임기건,김지환 한국공작기계학회 2003 한국생산제조학회지 Vol.12 No.6

With the increased use of lasers in industrial welding applications, techniques for monitoring and controlling these processes become increasingly important. It is very important that we understand the dynamic behaviors of the laser induced plume in welding because the laser induced plume has considerable effects on welding efficiency and the quality of materials. As the plume fluctuation was associated with keyhole instability, unstable vapor plume indicated the process was unstable and would result in poor welds. An Infrared Themal-vision Camera can be utilized compensate for incurracies encountered in real-time monitoring during laser welding. We have results that instabilities of plume are closely dated with hot cracking and defect of laser welding.

일부 대학생의 계통별 VDT 증후군 자각증상에 대한 조사

김근조 ; 이규리 ; 박지원 ; 박재영 김천대학교 2005 김천대학교 논문집 Vol.26 No.-

IIn order to find out the actual conditions and habit of using computer and the related VDT subjective symptom, we have done a survey though a random questionnaire of roughly 350 students of Kimchon college for the period of May 9 - June 18, 2005.

민간단체 및 정부기관의 사회 환경 교육에 대한 역할 연구

노지영,조영민 경희대학교 2004 環境硏究 論文集 Vol.13 No.-

Recent environmental problems have threaten survival of the people and welfare of human life. Nevertheless, the significance of environment has been dealt with minor issue in Korea. In this study, the role of government organizations and various non-government societies upon the social training of the environment was presented in addition of official school programs.

항정신병 약물이 Cyclooxygenase-2 유전자 발현과 Prostaglandin E_2 농도에 미치는 영향

김종우,조성욱,범재명,윤도준,장환일,송지영 대한생물치료정신의학회 2001 생물치료정신의학 Vol.7 No.2

Objectives : Cyclooxygenase(COX) is the central enzyme in the biosynthetic pathway to prostaglandins from arachidonic acids. The action mechanism of nonsteroidal anti-inflammatory drugs is through inhibition of COX activity and prostanoid biosynthesis including prostaglandin E_2(PGE_2). The antipsychotic drugs are known having an analgesic effects, however its mechanisms of actions of action to pain control was not still clearly proved. In the present study, the effects of antipsychotic drugs(chlorpromazie and clozapine) on the production of PGE_2 and the expression of COX-2mRNA and protein in P815 cell line were studied. Methods : For that purpose, the methods of RT-PCR, western blot and prostagalndin E_2 enzymeimmunoassay were applied. Results : The results showed tha tin P815 cells treated with chlorpromazine, the level of COX2 mRNA was significantly decreased compared to the control cells. And total cellular PGE_2 levels were significantly decreased after treatment with chlorpromazine and clozapine. Conclusion : These results suggest that antipsychotic drugs have revealed their analgesic effect through the inhibition of COX-2 activity and PGE_2 production. And also, these results partly supports the excess theory of prostaglangdins in the pathogenesis of schizophrenia.

내시경적 절제로 진단된 폴립 형태의 심재성 낭종성 위염 2예

허종현,조영화,성용완,유재훈,구동영,김갑식,노지훈,문원 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.2

Gastritis cystica profunda (GCP) is a disease characterized by hyperplastic and significant extension of cystic dilatation of the gastric mucous glands, which results in a cystic lesion in gastric submucosa. It often occurs on the part of gastroenterostomy, but can be found in the stomach without any previous surgery. GCP has variable gross finding including solitary polyps, diffuse ones, submucosal tumors, and rare giant gastric mucosal fold. It is difficult to tell GCP from a cancerous lesion by gross finding that the disease demands a necessary tissue biopsy, though GCP is commonly showed as a benign in the progress. We report a case of GCP in polypoid types diagnosed by endoscopic polypectomy.