연구논문(硏究論文) : 한식 이미지가 여행목적지로서의 한국에 미치는 영향 -현지 미국인의 한식에 대한 인식을 중심으로-

이규민 ( Gyu Min? Lee ),이승우 ( Seung Woo? Lee ),차석빈 ( Suk Bin Cha ) 한국외식경영학회 2012 외식경영연구 Vol.15 No.5

본 연구는 미국인들의 한식에 대한 이미지가 한식에 대한 선호도와 그들이 실제한식을 즐기는 정도에 어떻게 영향을 끼치는지, 한식에 대한 선호도와 한식을 즐기는 정도가 한국 방문 의도와 지인들에게 한국 방문을 추천하고자 하는지에 대해 알아보고자 하였다. 뉴욕, 샌프란시스코, 하와이 등 3개 도시의 현지 미국인 209명을 대상으로 설문 분석한 결과는 다음과 같다. 첫째, 외국인들의 한국 음식에 대한 긍정적 이미지는 한식에 대한 선호도와 실제 한식을 구매하는 정도에 유의한정(+)의 영향을 미치는 것으로 나타났다. 둘째, 미국인들의 한국음식에 대한 선호도는 한국을 방문하고자 하는 의도에 긍정적으로 작용하며, 또한 주변 사람들에게 한국을 방문할 것을 적극적으로 추천하고자 하는 경향을 발견할 수 있었다. 셋째, 미국인들이 실제로 한식에 대해 구매하는 정도는 한국을 방문하고자 하는 의도 및 한국방문을 주변 사람들에게 추천하고자 하는 의도에 유의한 정(+)의 영향을 끼치는 것으로 나타났다. 마지막으로, 한식의 이미지는 한국을 방문하고자 하는 의도와 한국방문을 추천하고자 하는 의도에 긍정적으로 영향을 미치며, 한식에 대한 선호도와 한식을 실제로 접하는 구매 빈도(외식 빈도) 정도가 매개역할을 하는 것으로 나타났다. As the travel industry becomes competitive, food exploration regarded as representative of one`s comprehensive culture acts as an important tourism motivation. This study explores to identify how Korean food image in the USA forms preference and dining frequency, and how that, in turn, affects visiting intention and recommendation. A total of 209 samples were obtained from American consumers. Structural equation modeling was employed to test six hypotheses. Findings indicate that Korean food image influences its preference, dining frequency, and ultimately intention to visit and to recommend Korea. Findings of this study will provide insight on how to attract tourists in the context of food image. Study results and implications for food marketers are included.

Cone beam형 전산화단층촬영에 의한 흡수선량

이의태,김규태,최용석,황의환 대한구강악안면방사선학회 2007 Imaging Science in Dentistry Vol.37 No.2

Purpose : To measure the absorbed doses of cone beam computed tomography (CBCT), which is recently being more frequently used, and to compare them with those of panoramic radiography. Materials and Methods : To measure the absorbed doses of CBCT (PSR-9000N, Asahi Roentgen Ind. Co., Japan), we placed TLD chips on the skin regions above the parotid and thyroid glands, and on the dorsum of tongue in a dental head phantom. We used two image acquisition modes of the Dental and Panoramic modes of CBCT, which differed in the field of view. Also, panoramic radiographs (Auto IIIN, Asahi Roentgen Ind. Co., Japan) were taken to compare with the absorbed doses of CBCT. Result : In the Dental mode of CBCT, the absorbed doses of the parotid gland, dorsum of tongue, and thyroid gland were 3.53, 3.13, and 0.36 mGy, respectively. In the Panoramic mode of CBCT, they were 9.57, 9.15, and 0.85 mGy, respectively. The panoramic mode showed higher absorbed doses than those of the Dental mode. In the panoramic radiography, the absorbed doses of the parotid gland, dorsum of tongue, and thyroid gland were 1.21, 1.19, and 0.16 mGy, respectively. And they were about 1/3 of the Dental mode and 1/9 of the Panoramic mode of CBCT. Conclusion : Absorbed doses of CBCT are higher than those of panoramic radiography, and dependent upon the field of view.

쌍자엽식물의 자엽에 있어서 α-Amylase활성에 관한 식물생장물질의 연구 : Ⅰ. 녹두 자엽에서 α-Amylase 활성에 대한 식물 생장 조절체의 효과 Ⅰ. Effects of Plant Growth Regulator on α-Amylase Acticity in the Cotyledons of Mung Bean(Phaseolus radiatus L.)

李相淑,曺圭燦,權五溶 충남대학교 자연과학연구소 1992 忠南科學硏究誌 Vol.19 No.1

The effects of plant growth regulators on α-amylase activities in the embryonic axis-attached and detached cotyledons of mung bean (Phaseolus radiatus L.) have been investigated. α-Amylase activities in the attached cotyledons of developing mung bean have been markedly increased for 3 days after the imbibition and then gradually decreased. The changes of α-amylase activity have accorded with changes on the band density of α-amylase isozymes in the attached and detached cotyledons. Two bands of isozyme have appeared on day 3 in the attached cotyledons, but on day 4 in the detached cotyledons. When the 10^-6 M solutions of GA_3 and kinetin have been exogenously supplied in the detached cotyledons for 3 days, α-amylase activities have occurred with about 1.5-fold in GA_3 and 1.25-fold in kinetin rather than the control. α-Amylase activities have been increased with 1.8-fold in the detached cotyledons treated with the 10^-3 M and 10^-4 M solutions of IAA. In contrast with the treatment of IAA, α-amylase activities have been increased with 3.5-fold in the detached cotyledons treated with the 10^-5 M and 10^-6 M solutions of 2, 4-dichlorophenoxyacetic acid belonged to synthetic auxin. Consequently, it has been indicated that the embryonic axis in the cotyledons of mung bean has been directly influence on α-amylase activity, and the α-amylase activity of the detached cotyledons treated with a 10^-6 M solution of 2, 4-dichlorophenoxyacetic acid has developed much increased effect. For this reason, it has been suggested that auxin from the embryonic axis has been probably induced α-amylase in the attached cotyledons during germination of mung bean.

정상 관동맥을 가진 심장 점액종 환자에서 발생한 급성 심근 경색증 1예

이정민,이현승,전은정,윤호중,정욱성,오용석,김철민,김재형,최규보,홍순조,이교영,심상인 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.9

DSP TMS320F240을 이용한 선형 동기 모터 드라이버 개발

이재헌,김상우,이석규,이달해 영남대학교 공업기술연구소 2000 工業技術硏究所論文集 Vol.28 No.2

This paper proposes a DSP240 based controller for brushless linear motor to enhance its performance and reliability. The designed controller is mainly composed of position, speed and current controller, which are carried out by the high-speed digital signal processor(DSP). This system is implemented by using 16-bit DSP(TMS320F240), a high-integrated logic device(EPM7128), and IPM(Intelligent Power Module) for compact and powerful system design. The experimental results show the effective performance of the proposed controller for the brushless linear synchronous motor.

분절 광배근 유리피판의 유용성

이훈범,김석원,정윤규,박윤규 大韓成形外科學會 1999 Archives of Plastic Surgery Vol.26 No.5

Since the first report by Tansini in 1896, the latissimus dorsi muscle free flap has been widely used for various types of soft tissue defect due to reliable anatomy with a sufficient diameter of neurovascular pedicle and a sizable muscle. However, for relatively small soft tissue defect, latissimus dorsi free flap offers several distinct disadvantages of donor site including loss of the posterior axillary fold and flattening of the posterolateral chest wall, weakness of upper arm strength in extension, adduction and internal rotation. We treated three patients having various types of soft tissue defect using segmental latissimus dorsi muscular free flap depending on its descending branch of thoracodorsal neurovascular pedicles. There were no serious complications during 18 months of mean follow-up. We concluded that this method has some advantages such as no weakness of strength of the upper arm including walking on crutches, preserving the posterior axillary fold, preventing winging of the scapula and increased chance of using a flow-through technique. Here we present our cases of reconstruction of soft tissue defect using segmental latissimus dorsi free flap with a review of the literature.

방사선조사가 Porphyromonas gingivalis에 미치는 영향

이창환,김규태,최용석,황의환 대한구강악안면방사선학회 2008 Imaging Science in Dentistry Vol.38 No.1

Purpose : The aim of this study was to observe a direct effect of irradiation on the periodontopathic Porphyromonas gingivalis (P. gingivalis). Materials and Methods : P. gingivalis 2561 was exposed to irradiation with a single absorbed dose of 10, 20, 30, and 40 Gy. Changes in viability and antibiotic sensitivity, morphology, transcription, and protein profile of the bacterium after irradiation were examined by pour plating method, disc diffusion method, transmission electron microscopy, RT-PCR, and immunoblot, respectively. Results : Viability of irradiated P. gingivalis drastically reduced as irradiation dose was increased. Irradiated P. gingivalis was found to have become more sensitive to antibiotics as radiation dose was increased. With observation under the transmission electron microscope, the number of morphologically abnormal cells was increased with increasing of irradiation dose. In RT-PCR, decrease in the expression of fimA and sod was observed in irradiated P. gingivalis. In immunoblot, change of profile in irradiated P. gingivalis was found in a number of proteins including 43-kDa fimbrillin. Conclusion : These results suggest that irradiation may affect the cell integrity of P. gingivalis, which is manifested by the change in cell morphology and antibiotic sensitivity, affecting viability of the bacterium.

2,4-Dinitrophenol을 처리한 호밀(Secale cereale L.) 유식물의 질산염 환원에 관한 연구 : Ⅰ. 호밀 유식물 묘조의 질산염 환원요소 활량에 대한 2, 4-Dinitrophenol의 영향 Ⅰ. Effect of 2, 4-Dinitrophenol on in vivo Nitrate Reductase Activity in the Shoots of Rye Seedlings

曺圭燐,李相淑,權五溶 충남대학교 1991 忠南科學硏究誌 Vol.18 No.1

This work was accomplished to determine the effect of 2,4-dinitrophenol (DNP) on in vivo nitrate reductase activities(NRA) in the shoots of 6 day old rye(Secale cereale L.) seedlings. The NRA in the shoots of rye seedlings pretreated with 0.5mM DNP was higher than that of the control group in all the experimental conditions as below. The optimal concentration of KNO_3 for maximum NRA was 10mM in both the control and treated group. The NRA accumulated with the treatment of 10mM KNO_3 was gradually increased for 4 hours in both groups, and then maintained constantly. On the other hand, the NRA occurred per hour was highest at 1 hour in both groups, while it was declined subsequently. The optimal pH for NRA was 7.5 in both groups. The daily pattern of NRA was markedly decreased for 4 days in both groups, and decreased slowly to 7 days. The NRA was greatly inhibited in the solutions of 200mM KCI and NaCl. According to the treatment time with the solutions of 200mM KCI and NaCl, the NRA was extremely inhibited at 2 hours, thereafter recovered slowly from its inhibition effects.

방사선조사가 백서 타액선의 clusterin 발현에 미치는 영향

오규명,최용석,황의환,이상래 대한구강악안면방사선학회 2006 Imaging Science in Dentistry Vol.36 No.1

Purpose : To investigate clusterin expression in the acini and ductal cells of rat submandibular glands after Co-60 gamma irradiation. Materials and Methods : The male Sprague-Dawley rats weighing approximately 250 gm were divided into control and experimental groups. The experimental group was irradiated with a single absorbed dose of 2, 5, 10, and 15 Gy on the head and neck region. All the rats were sacrificed at 1, 3, 7, 14, 21, and 28 days after irradiation. The specimens including the submandibular gland were sectioned and observed using a immunohistochemical method. Results : In the 2 Gy group, clusterin expression was similar to that of the control group at 1 day after irradiation and it was observed in the striated ductal cells at 3 days after irradiation. In the 5 Gy group, clusterin expression was observed in the striated ductal cells at 1 day after irradiation and gradually increased in the 10 and 15 Gy groups. In the 15 Gy group, clusterin expression was prominent in the striated ductal cells at 1 day after irradiation, but it gradually decreased with the experimental period. The destruction of the striated ductal cells was observed in the 2 Gy group at 21 days after irradiation and in the 5, 10, and 15 Gy groups at 7 days after irradiation. The destruction of the acinar cells was observed in the 2 Gy group at 28 days after irradiation and in the 5, 10, and 15 Gy groups at 14 days after irradiation. Conclusion : Clusterin expression was induced by low doses of irradiation and it appeared to be involved in the regulation of cellular response to irradiation. (Korean J Oral Maxillofac Radiol 2006; 36 : 33-40)

천연골재 및 재생골재콘크리트의 Na₂SO₄침식에 의한 화학저항성에 관한 실험적 연구

김규용,이정율,박유신,강석표,김무한 忠南大學校 産業技術硏究所 1998 산업기술연구논문집 Vol.13 No.1

Now a day, the more Proportion of concrete used in practice is exposed to serious chemical attack Chemical reactions that involve formation of expansive products in hardened concrete can lead to certain harmful effects. In this study, it is to compare and investigate the chemical resistance of natural and recycled aggregate concrete by attacked Na₂SO₄according to W/C ratio. The result of this study is that the chemical resistance of recycled aggregate concrete is lower than natural aggregate concrete. But it is developed the chemical resistance by decreasing the W/C ratio.