• 한국진공학회:학술대회논문집
• /
• 한국진공학회 2009년도 제38회 동계학술대회 초록집
• /
• pp.395-395
• /
• 2010

RIS(Reactive Ion Scattering)은 저 에너지 이온 빔을 쏘아 표면을 분석하는 방법이다. 분자 동력학 계산(MD simulation) 결과에 따르면 $Cs^+$이온은 두꺼운 얼음 표면에서 산란이 거의 일어나지 않는다. 본 연구에서는 이와 달리 Pt(111)과 Ru(0001) 표면에 생성시킨 두꺼운 얼음 표면에서 $Cs^+$이온 산란 실험이 가능함을 보였다. 한편, RIS signal은 얼음 층이 쌓인 구조나 두께에 따라 영향을 받는데, Ru(0001)과 Pt(111)의 표면에 생성시킨 crystalline water ice에서 시간과 water ice film의 두께가 RIS signal에 어떠한 영향을 미치는지도 조사하였다.

• 복식
• /
• 제5권
• /
• pp.185-196
• /
• 1981

This study concerns Jeugo-ris' collar patterns according to the pictures of the actual measurement of the bequests in Yi dynasty. In early Yi dynasty not only outside collar but also inside collar was the Mog-pan collar. In middle Yi dynasty many Jeugo-ris' bequests has been discovered. The form of the collar was various In before and after the 1590's, the Mog-pan collar and Kal-collar, Dang-ko callar was coexisted. But after the 1700's Jeugo-ris' collar pattern was fixed to the Dang-ko collar. In early and middle Yi dynasty the width of the collar was three or four times as wide as it on these days. In late Yi dynasty the inside collar length was longer than the outside collar length and the width of the collar was gradually narrow. The same thing as the form of the collar on these days had been appeared from the 1900's.

• 폴리머
• /
• 제24권2호
• /
• pp.182-193
• /
• 2000

폴리알킬렌테레프탈레이트 (PAT)의 고리 올리고머의 몰 고리화 정수(molar cyclization equilibrium constants)를 회전 이성 상태 (rotational isomeric state) (RIS) 모델에 의해Monte Carlo 모사로부터 얻었다. Jacobson-Stockmayer 이론과 이를 보완한 Flory, Suter, 그리고 Mutter의 방법으로는 각 PAT의 고리 올리고머의 함량과 분포를 잘 설명할 수 없었다. RIS모델을 이용한 직접 계산법으로는 반응거리를 ${\gamma}$=0.5 < ${\gamma}^{2}$> $^{1/2}$로 잡아준 경우에 모든 PAT에 대해서 실험치에 가까운 고리 올리고머의 분포를 얻었다. 또한 각 PAT의 입체형태의 변화에 따른 몰고리화 정수의 변화를 고찰하기 위하여 PAT 반복단위 중의 통계적 가중치 rl과 필를 변화시키면서 각 PAT의 몰 고리화 정수를 구하였다. 여러 반응거리와 ${\gamma}$=0.5 < ${\gamma}^{2}$> $^{1/2}$로 설정한 경우에 ${\sigma}_{1}$과 ${\sigma}_{2}$의 변화에 모든 PAT의 평형 고리 올리고머의 함량이 약간 변하기는 하나 그 분포는 그대로유지되었다. 각 PAT의 몰 고리화 정수는 주어진 입체배열에 의해서 일차적으로 결정이 되며 입체형태의 변화에 의해서도 다소 영향을 받는다는 것을 알았다.

• Fisheries and Aquatic Sciences
• /
• 제12권1호
• /
• pp.29-34
• /
• 2009

Fifty seven species of common seaweed from the coast of Korea were screened for antifungal activity against Malassezia species. Seaweeds as a source of bioactive compounds are able to produce a great variety of secondary metabolites with different activities. There are numerous reports on the biological activities of seaweeds against human pathogens, fungi, and yeasts, but only few contain data regarding inhibitory effects against Malassezia sp., a major cause of dandruff and seborrheic dermatitis. To help address this paucity of information, this work was carried out to examine the antifungal effects of seaweed extracts against M. furfur and M. restricta. Of the fifty seven species of marine algae screened for their potential antifungal activity, only 17 species (29.8%) exhibited inhibitory activity. In agar disc diffusion method, the ether extracts of Corallina pilulifera, Enteromorpha linza, Laminaria japonica, Symphyocladia latiuscula and Ulva sp. showed strong antifungal activity. To identify major constituents in seaweed extracts, four selected extracts were analyzed on' a GC-MS equipped with a flame ionization detector, and compared to spectral data from databases WILEY229.LIB and NIST107.LIB. Most constituents in seaweed extracts are fatty acid-related compounds. When we evaluated any acute toxicity, the ether extracts of the selected four species were not toxic in mice. According to these results, it can be suggested that these seaweed extracts are valuable for the development of therapeutic agents in treating dandruff and seborrheic dermatitis. Further investigations to determine its bioactive compound(s) are currently in progress.

• 한국의료질향상학회지
• /
• 제25권1호
• /
• pp.11-28
• /
• 2019

Purpose: The purpose of this paper is to derive implication on the adoption of PROMs (Patient-Reported Outcome Measures) to improve quality of care in South Korea. With this purpose, the paper examines the status of PROMs in South Korea and other countries including OECD's PaRIS (Patient Reported Indicators Survey) initiative, and reviews policy cases that have adopted PROMs to improve performance of healthcare system. Methods: We conducted literature review on OECD reports on PaRIS, peer-reviewed journals, and information from the websites of relevant institutions such as ICHOM, NQF and OECD. Results: To identify healthcare services of best values and support patient-centered health system, OECD has initiated PaRIS which develops, collects and analyzes patient-reported indicators for cross-countries comparison. PaRIS is implemented on two work streams: 1) collect, validate and standardize PROMs in the areas where patient-reported indicators already exist such as breast cancers, hip and knee replacement, and mental conditions, 2) develop a new international survey on multiple chronic conditions. Countries like England, U.S., Sweden and Netherlands use PROMs for measuring performance of hospitals and performance evaluation at the national level, and provide the financial incentives for reporting PROMs. Conclusions: The use of PROMs can support the current policy agenda that is the patient-centered healthcare system which has been emphasized to reinforce the primary and the community-based care. For the use of PROMs, it is recommended to actively participate in PaRIS initiative by OECD, select appropriate instruments for PROMs, and continue on standardization of them. This will assure patients' involvement in improving health system performance, systemize information generated in the process of adopting PROMs, and develop a system to evaluate performance.

• 프린팅코리아
• /
• 제7권12호
• /
• pp.64-65
• /
• 2008

(주)애즈랜드(대표이사 최현수)가 주최하고 동국대학교 RIS사업단이 주관한 출판기념회 및 세미나가 지난 11월 5일 서울 중구 PJ호텔에서 개최됐다. '인쇄혁명, PDF 프린팅'이 라는 제목의 출판기념회는 최현수 사장과 PDF 전문가 이능모 씨가 공동 저술했다. 동국 대학교 RIS사업단의 사업 일환으로 발간된 이 책자는 최근 인쇄업계의 화두로 떠오른 인쇄산업에서의 PDF 활용 방안에 대해 자세히 설명하고 있다.

• 한국광학회:학술대회논문집
• /
• 한국광학회 1991년도 광학 및 양자전자학 워크샵
• /
• pp.15-22
• /
• 1991

The general aspects of Laser Resonance Ionization Spectroscopy (RIS) and its application are investigated. Combination of laser selective photoionization and mass spectrometer as apromising spectroscopic as well as an analytical tool is mainly considered. The application of RIS includes mercury (Hg) atomic spectroscopy, trace analysis of lead (Pb) and resonance enhanced two photon ionization spectroscopy of Cis-hexatriene.

• Bulletin of the Korean Chemical Society
• /
• 제30권5호
• /
• pp.1181-1183
• /
• 2009

• 유통과학연구
• /
• 제18권6호
• /
• pp.83-91
• /
• 2020

Purpose: Research on the behavior of using digital banking services plays an important role for banks in the context of increasingly competitive banks, not only for domestic banks but also for foreign banks. Along with the development of science and technology brings new approaches to banking industry, digital banking increases the effectiveness of banking activities. Besides, information safety brings different feeling about digital banking system. Therefore, this research evaluates the relationship between Information safety and Intention to use banking services in Vietnam. Research design, data and methodology: With 329 Vietnamese customers using digital banking, reliability test, and structural equation model (SEM) analysis method. Results: the research shows that information safety has directly effects on perceived ease of use (PU), perceived risk (RIS) of customers to digital banking services. Perceived trust (TRU) has a negative impact on RIS. Perceived of usefulness (PEU) has a positive impact on attitude towards service (ATT), and RIS has a negative impact on ATT. RIS, PEU, ATT, convenience and enterprise image have positive effects on intention to use digital banking service. Conclusions: From the research results, the authors also propose some recommendations to enhance the intention to use digital banking services in Vietnam.

• International Journal of Computer Science & Network Security
• /
• 제22권6호
• /
• pp.400-407
• /
• 2022

Innovations significantly affect the efficiency of the socioeconomic systems of the regions, acting as a system-forming element of their development. Modern models of economic development also consider innovation activity, intellectual potential, knowledge as the basic factors for stimulating the economic growth of the region. The purpose of the study is to develop methodological foundations for evaluating the effectiveness of a regional innovation system based on a multidimensional analysis of its effects. To further study the effectiveness of RIS, we have used one of the methods of multidimensional statistical analysis - canonical analysis. The next approach allows adding another important requirement to the methodological provision of evaluation of the level of innovation development of industries and regions, namely - the time factor, the formalization of which is realized in autoregressive dynamic economic and mathematical models and can be used in our research. Multidimensional Statistical Analysis for RIS effectiveness estimation was used to model RIS by typological regression. Based on it, multiple regression models were built in groups of regions with low and relatively high innovation potential. To solve the methodological problem of RIS research, we can also use the approach to the system as a "box" with inputs and outputs.