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      • KCI등재후보

        좌심실형성부전증후군 환아의 치과치료를 위한 전신마취 시 강화 후두마스크를 이용한 기도 유지

        김경진,신터전,현홍근,김영재,김정욱,장기택,이상훈,김종철,서광석,Kim, Kyung Jin,Shin, Teo-Jeon,Hyun, Hong-Keun,Kim, Young-Jae,Kim, Jung-Wook,Jang, Ki-Taeg,Lee, Sang-Hoon,Kim, Chong-Chul,Seo, Kwang-Suk 대한치과마취과학회 2013 Journal of Dental Anesthesia and Pain Medicine Vol.13 No.4

        Despite the laryngeal mask airway (LMA) has been widely used in anesthesia, its use is rare in the field of dentistry. Placing LMA in the oral cavity may interrupt dental treatment. However, there are some circumstances in which LMA is more advantageous than tracheal intubation for managing the airway. Especially, the reinforced LMA has a flexible tube shaft, rendering it more accessible for dental treatment. We report a case of dental treatment of a 3-year-old patient with hypoplastic left heart syndrome combined with pulmonary hypertension using reinforced LMA for airway management under general anesthesia. We also discuss the considerations of utilizing the reinforced LMA for dental treatment.

      • KCI등재

        당뇨흰쥐의 콜라겐 감소 및 인간 피부 섬유아세포의 MMP-1 증가에 대한 목단피(牧丹皮)의 항피부노화 효과

        김경진,김경준,Kim, Kyung-Jin,Kim, Kyung-Jun 대한한방안이비인후피부과학회 2008 한방안이비인후피부과학회지 Vol.21 No.1

        Objective : Skin aging is commonly observed in patients with diabetes mellitus, which can be accessed by the amount of skin collagen and matrix metalloproteinase-1 (MMP-1). In the present study, anti-skin-aging effects of Root Cortex of Paeonia Suffruticosa Andrews (PSA), which has been widely used to treat diabetes mellitus, are investigated. Methods : Streptozotocin (STZ) was intraperitoneally injected to rats to induce diabetes. Body weights, feed intake, organ weights, blood glucose, and other biochemical index are determined in both normal and diabetic rats. In order to study the effect of PSA on skin aging, the amount of skin collagen was measured in diabetic rats after PSA treatments. Also, MMP-1 synthesis in UVB-irradiated human skin fibroblasts was investigated. Results : 1. When PSA was administered to STZ-induced diabetic rats, feed intake was significantly increased and blood glucose and total cholesterol were decreased in a dose-dependent manner. However, there are no differences in individual organ weights, GOT, and GPT. 2. A decrease of skin collagen in diabetic rats was significantly suppressed when PSA was treated. 3. PSA also inhibited MMP-1 synthesis in UVB-irradiated normal human skin fibroblasts, similar to retinoid, a well-known effective anti-skin-aging substance. Conclusion: PSA suppressed a collagen decrease in diabetic rats and inhibited MMP-1 synthesis in UVB-irradiated human skin fibroblasts. Therefore, the treatment of PSA is very effective to slow down the skin aging process.

      • KCI등재후보

        이산대수 기반 Diffie-Hellman형 표준 키 분배 프로토콜의 안전성 분석에 관한 연구

        김경진,김성덕,심경아,원동호,Kim, Kyung-Jin,Kim, Sung-Duk,Shim, Kyung-Ah,Won, Dong-Ho 한국정보처리학회 2002 정보처리학회논문지 C : 정보통신,정보보안 Vol.9 No.6

        인터넷과 같은 첨단의 정보 전송 시스템이 발달함에 따라 네트워크 상에서 전송되는 메시지에 대한 기밀성을 제공하기 위해서 암호 시스템의 사용이 증가하고 있으며 그 중요성은 더욱 강조되고 있다. 안전한 암호 시스템을 구현하는 데 있어서 키 분배 프로토콜은 가장 필수적인 요소이며, 지금까지 여러 키 분배 프로토콜들이 표준으로 제안되었으나 이에 대한 엄밀한 안전성 증명은 아직까지 부족한 실정이다. 따라서 본 논문에서는 ANSI X9.42의 Diffie-Hellman형 표준 키 분배 프로토콜의 특징을 자세히 분석하고 이를 기반으로 여러 능동적 공격자 모델에 대한 프로토콜의 안전성을 증명하고자 한다 According to the wide-spread of information transmission system over network, the use of cryptographic system to provide the integrity of transmitted message over network is increasing and the importance of that is emphasized. Because the security of the cryptographic system totally relies on the key, key management is a essential part of cryptographic system. A number of key agreement protocols have been proposed to far, but their rigorous security analysis is still open. In this paper, we analyze the features of Diffie-Hellman based standard key agreement protocols and provide the security analysis of those protocols against several kinds of active attacks.

      • KCI등재후보

        마판 증후군 소아 환자의 전신마취 하 치과치료

        김경진,박소연,현홍근,신터전,김정욱,Kim, Kyung Jin,Bak, Soyeon,Hyun, Hong-Keun,Shin, Teo-Jeon,Kim, Jung-Wook 대한치과마취과학회 2013 Journal of Dental Anesthesia and Pain Medicine Vol.13 No.4

        Multiple caries in a pediatric patient often requires dental treatment under general anesthesia, especially when the patient is suffering from a systemic disease. The patient was a 6-year-old boy with Marfan syndrome and needed extensive dental treatment. Marfan syndrome is an inherited disorder resulting from mutations in Fibrillin-1 gene. Patients are known to have mainly cardiovascular, ocular, and musculoskeletal problems. Although clinical symptoms of the syndrome are age-realted, thus hindering early diagnosis of the disease in young children, our patient had been confirmed by a gene study at a younger age. Medical history of the patient revealed moderate to severe mitral regurgitation and aortic root dilatation, which required mitral valve replacement surgery with a mechanical valve. As a result, the patient was taking warfarin post-operatively and changes in medication had to be made before the dental treatment. Also, prophyalctic antibiotics had to be given before the treatment for prevention of (to prevent the) infective endocarditis. With careful control of the medications and bleeding tendency, general anesthesia and the treatment were done successfully without any complications.

      • KCI등재

        Ovalbumin으로 유발된 아토피피부염 모델 마우스에 대한 복합한약추출물 경구투여의 효과

        김경진,김경준,Kim, Kyung-Jin,Kim, Gyung-Jun 대한한방안이비인후피부과학회 2014 한방안이비인후피부과학회지 Vol.27 No.3

        Objective: This study was to evaluate whether herbal mixture (HM-A : Houttuynia cordata Thunberg, Rubus coreanus, Rehmannia glutinosa, Prunus yedoensis, HM-B : Houttuynia cordata Thunberg, Rubus coreanus, Rehmannia glutinosa, Angelica gigas nakai) supresses the development of atopic dermatitis in Balb/c mice sensitized by ovalbumin. Methods: Mice were sensitized by intraperitoneal injection of ovalbumin plus aluminum hydroxide hydrate, followed by epicutaneous sensitization for 6 weeks. After induced atopic dermatitis, HM-A and HM-B were orally administrated for two weeks(once a two days) as a 50 mg/kg concentration. After all mice were sacrificed at the end of the experiment, skin and blood were harvested. Results: Oral administration group was reduced the infiltration of eosinophils, mast cells and total T cells on the skin areas as well as blood analysis. Also, cutaneous expression of IL-4,13,17 decreased. Blood IgE level was decreased. Conclusion: These drugs could be potential candidates for the atopic dermatitis.

      • KCI등재

        튜닝 브레이크 디스크의 성능평가 방법 개발

        김경진,신재호,강우종,Kim, Kyung Jin,Shin, Jaeho,Kang, Woo Jong 한국자동차안전학회 2016 자동차안전학회지 Vol.8 No.3

        Braking system is directly related to the safety of a vehicle and the brake discs are essential part of the braking system. Due to the repeated frictional forces and torque during braking, brake discs are always works at high temperature and high pressure. Furthermore, the brake disc is one of major tuning components in aftermarket, the braking performance of the brake disc should be evaluated for establishing the certification standards of tuning components. This paper proposes the test method to evaluate the performance of tuning brake discs.

      • KCI등재

        시간적 거리와 공간적 거리의 상호작용이 외재적 속성의 중요도에 미치는 영향

        김경진(Kim, Kyung Jin) 한국상품학회 2010 商品學硏究 Vol.28 No.2

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

        이해수준이론(CLT)에 따르면 소비자는 먼 미래 구매시 당위적인 내재적 속성(desirable attribute)이 뛰어난 제품을 선호하고, 가까운 미래 구매시 현실적인 외재적 속성(feasible attribute)이 우월한 제품을 선호한다고 한다. 그러면 먼 미래와 가까운 위치가 결합되면 어떤 속성이 뛰어난 제품을 선호하게 될까? 즉, 시간적 거리와 공간적 거리가 복합적으로 작용하게 될 때 소비자의 이해수준은 어떻게 달라질 것인가? 중복된 심리적 거리는 부가적이라기보다는 체감적이라는 베버-페치너 법칙이나, 시간적 거리감은 한계체감 한다는 시간할인 원리는 이러한 질문에 통찰력을 제공한다. 즉, 가까운 미래에 먼 위치를 더하면 하위차원의 이해(low level construal)에서 상위차원의 이해(high level construal)로 변화하지만, 먼 미래에 먼 위치를 더한다고 해서 추가적인 상위차원 이해의 증가는 없을 것이라는 예상이 가능하다. 따라서 오직 가까운 미래와 가까운 거리의 조건에서만 하위차원 이해가 발생하고, 나머지 세 조건(먼 미래이며 먼 거리, 먼 미래이며 가까운 거리, 가까운 미래이며 먼 거리)은 모두 동일한 정도의 상위차원 이해가 발생할 것이다. 실험 1에서 노트북 구매시 소비자는 가까운 미래이며 가까운 위치의 대리점을 이용하는 경우에만 하위차원의 외재적 속성(e.g., 매장이용편리성, 직원친절성)을 더 중시하는 것으로 나타났다. 시간이나 공간적 거리가 하나라도 멀어지면 외재적 속성중요도는 낮아졌고, 소비자는 상위차원의 내재적 속성(e.g., 배터리지속시간, 디자인)에 주안점을 두었다. 그리고 시간과 공간적 거리 모두 멀어진다고해서 외재적 속성중요도 인식이 더 심화되지는 않았다. 실험 2에서 패밀리 레스토랑 평가맥락으로 실험 1의 결과를 재연하였다. 특히 내재적 속성(e.g., 음식의 맛, 메뉴다양성)보다 덜 중요 한 것으로 나타난 외재적 속성(e.g., 주차편리성, 음식제공속도)에서도 시간과 공간적 거리의 상호작용효과가 나타났다. 그리고 이 효과는 외재적 속성이 우월한 브랜드에 대한 선호도까지 높여주었다. 본 연구는 시간과 사회적 거리의 상호작용효과를 제품수준에서 살펴본 Kim, Zhang, and Li (2008)의 연구에 대하여, 시간과 공간적 거리의 효과를 속성수준과 브랜드수준으로 심화시켰다는 의의가 있다. 그리고 내재적 속성에서는 시간과 공간적 거리의 상호작용효과가 나타나지 않았는데, 이것은 시간적 거리의 기억효과는 내재적 속성에서는 잘 나타나지 않고 외재적 속성에서 잘 나타난다는 Kim, Park, and Wyer Jr. (2009)의 연구를 속성중요도 측면에서 확장한 결과라고 볼 수 있다. 실무적으로, 내재적 속성에서 본질적으로 불리한 후발브랜드라면 가까운 거리에 위치하고 가까운 미래에 방문할 예정인 고객을 목표고객으로 하여 외재적 속성(설사 중요도가 낮다 하더라도)을 강조하는 마케팅 커뮤니케이션을 펼친다면 바람직한 성과를 기대할 수 있을 것이다. According to the construal level theory, consumers prefer intrinsic attributes related with desirability when distant future purchase, on the other hand, for purchase of near future they prefer extrinsic attributes related with feasibility. What if they would prefer which attribute when distant future jointed with near space? How would change their construal level at these complex psychological distances? The theories of 'The Weber-Fechner Law', and the effects of multiple psychological distances are not additive but diminishing, or 'The Time-Discounting Principle', and the sense of time perception is diminishing may confer insight. It is possible that near future plus distant space gets low level construal to high level construal, but it is less possible that distant future plus distant space would not cause incrementation of additive high level construal. Eventually, for only near future & near space it may be low level construal, on the other three conditions it may be all same level of high construal. Experiment 1 says that consumers take the importance for feasible attributes (ease of mall and kindness of employee) when near future & near space condition. If one condition is distant whether time or space, they would get weight of desirable attributes (battery or design.) Although both temporal and spatial distance is distant, their high level construal does not strengthen. This study extended the results of Kim et al. (2008) which has suggested the interactive effects of temporal and social distance on product attitude into the attribute level on which the effects of temporal and spatial distance. Also, it was not appeared that the interactive effects of temporal and social distance on the desirable attributes - consisted with Kim et al. (2009) which has said the memory effects not on desirable but on feasible attributes by temporal distance. Empirically, a disadvantaged brand in terms of desirable attribute would be advisable to target consumers which are in near future purchase and in near space. The brand has be advantageous if positioning to emphasize their superior feasible attribute - although less important than desirable attributes.

      • KCI등재

        코퍼스를 바탕으로 한 영어 diminisher의 분석과 대학생들의 인지도 연구

        김경진(Kim, Kyung Jin),윤현숙(Yoon, Hyunsook) 한국외국어교육학회 2009 Foreign languages education Vol.16 No.1

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

        English intensifiers play an important role in conveying the mood or subtle meaning of utterances. While they are used in semantically and syntactically different environments, their different usage does not seem to be well perceived by EFL learners. The purpose of this study was two-fold: 1) to look more carefully at the distribution of intensifiers and their collocational and grammatical behaviors in a spoken and written corpus, and 2) to examine college students' awareness of the intensifiers, diminishers were chosen for the study because they have been neglected in the field, while previous studies focused mainly on amplifiers. The results of the corpus analysis showed that the distribution of each intensifier in the corpus was different in terms of frequency of occurrence and linguistic environment for use. On the other hand, the test of the students' knowledge on diminishers revealed that only about 30 percent of the students were aware of their usage. That is, the study suggests that although the diminishers have semantically and syntactically different features, students are not well aware of the differences and therefore use them inappropriately. Implications for teaching are also discussed.

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