• 제목/요약/키워드: Theoretical Review

검색결과 1,565건 처리시간 0.03초

Hydrogen Bonding in Aromatic Alcohol-Water Clusters: A Brief Review

  • Ahn, Doo-Sik;Jeon, In-Sun;Jang, Sang-Hee;Park, Sung-Woo;Lee, Sung-Yul;Cheong, Won-Jo
    • Bulletin of the Korean Chemical Society
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    • 제24권6호
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    • pp.695-702
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    • 2003
  • Recent experimental and theoretical advances on the aromatic alcohol-water clusters are reviewed, focusing on the structure of the hydrogen bonding between the alcoholic OH group and the binding water molecules. The interplay of experimental observations and theoretical calculations for the elucidation of the structure is demonstrated for phenol-water, benzyl alcohol-water, substituted phenol-water, naphthol-water and tropolone -water clusters. Discussion is made on assigning the role (either proton-donating or -accepting) of the hydroxyl group by measuring the shifts of infrared frequency of the OH stretching mode in the cluster from that of bare aromatic alcohol for the experimental determination of the cluster structure.

Family Restaurant의 음료 매출증대에 관한 연구 (A Study on a plan of Beverage Sales Step-up of Family Restaurant in Korea.)

  • 이재련
    • 한국조리학회지
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    • 제6권3호
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    • pp.425-442
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    • 2000
  • The main purpose of this study is to propose that Beverage sales should be step-up in Family Restaurant. To achieve the purpose of this study theoretical and empirical approaches were used. In review of theoretical background, basic concepts and characteristics of beverage were studied. For empirical study, three Family Restaurant in Korea was selected and analyzed the beverage sales which classified to Liquor, Beer Wine and Non-alcoholic beverage. Based on it, I suggest a plan of beverage sales step-up of Family Restaurant as follow. First, keep the appropriate valance of the whole item: non-alcohol and alcohol item. Second, develop the menu should be effect beverage sales. Third, through the promotion and event the restaurant should derive the customer to purchasing behavior. Fourth. server can accommodate and offer the information of food and beverage menu that can evoke the customer's attention.

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의약품 경제성평가 지침의 주요 내용 (Guidelines for Economic Evaluation of Pharmaceuticals in Korea)

  • 배은영
    • Journal of Preventive Medicine and Public Health
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    • 제41권2호
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    • pp.80-83
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    • 2008
  • An economic evaluation is required in order to apply to the Health Insurance Review and Assessment Service (HIRA) for a listing in the national drug formulary. To assist companies in preparing the necessary documents, HIRA published guidelines for the economic evaluation of pharmaceuticals in 2006. The guidelines are composed of two parts: guidance and explanatory notes. Each guideline reflects the best practice which meets both the theoretical consensus within the academic community and local situations, like data availability. To enhance the transparency of evaluation, guidelines emphasize the reproducibility of data and analysis result. That is, all evaluation processes are required to be described in enough detail to be replicated by reviewers. With growing experience and theoretical development in this area, HIRA guidelines will be revised periodically.

자동운전 도시철도차량의 운전특성을 고려한 절연구분장치 이론적 고찰 (Theoretical Study of Neutral Section Considering the Driving Characteristics of ATO Urban Railway Vehicle)

  • 이재봉;김재문
    • 전기학회논문지
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    • 제62권10호
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    • pp.1470-1474
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    • 2013
  • In this paper, proper length of neutral section and neutral section system configuration is proposed to minimize accidents if ATO urban railway vehicle stops maintaining the leading vehicles in air section at regular intervals. When considering the minimum voltage sensing of power conversion unit in the urban railway vehicle, the effective length of 14,280[mm] with neutral section can be minimized damage due to high current because the urban railway vehicle is very little present chance compare neutral section with pantograph interval installed on a unit vehicle. In addition, uplift of catenary line and contact wire consider to minimize damage. The result of theoretical review, as the proposed neutral section shorter, isolated neutral section is effective than the integrated neutral section.

삼대가족형 아파트의 노인실 실내계획에 관한 연구 (Interior Design Research for The Elderly in Three Generation Apartment)

  • 김정근
    • 한국실내디자인학회논문집
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    • 제3호
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    • pp.18-25
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    • 1994
  • Interior design is an inerdisciplinary field that is in the early stages of theory development, it is necessary to build theoretical frame work for the research. The purpose of this study is to present interior design and guidelines in a three generation family apartment for the elderly, and to develop a theoretical framework on the basis of the human ecosystem approach for analysis of relations between elderly and environment. Analysis and investigations are done by literature review about residential environmental characteristics of the elderly based on the findings of the conceptual analysis. Environmenta elements of interor design related to elderly in a three generation family apartment are as follow ; First, Natural environmental element is orientation, site, temperature, local weather. Second, human behavioral element is privacy , interior design requirement based on physical and psychological effect, housing policy, behavior. Third, Human constructed environmental element is size of apartment space, interior design component, human dimension, aesthetic condition.

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적합 판단 영향 요인에 관한 이론적 고찰 (A Theoretical Review of Relevance Judgments)

  • 유재옥
    • 정보관리학회지
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    • 제13권2호
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    • pp.143-163
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    • 1996
  • 정보검색시스템평가에서 적합 판단(relevance judgments)은 중요한 역할을 수행한다. 그 이유는 적합 판단의 결과에 따라 탐색성능이 결정되기 때문이다. 본 논문은 적합 판단과 관련하여 적합 개념의 이론적 배경을 역사적으로 고찰하고 적합개념이 적합판단에 미친 영향을 살펴보고자 한다. 또한 적합 판단과정에서 판단에 영향을 주는 요인이 있는지를 조사하고자 한다. 선행연구는 문들에 관한 문헌조사연구 결과는 적합 판단에 영향을 미치는 변인으로 다음의 네 종류의 변인이 파악되었다. 즉, 적합 판단근거로 제시되는 문헌대용물의 종류, 제시순서, 적합측정도구, 판단자 변인의 네 변인들은 적합 판단에 영향을 미치는 것으로 확인되었다.

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A Comprehensive Theoretical Framework for a Better Understanding of Motivations of Participants in OSS Development Projects: A Meta-Research Approach

  • Kim, Kimin;Yang, Sung-Byung
    • International Journal of Contents
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    • 제10권3호
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    • pp.73-83
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    • 2014
  • Participants in Open Source Software (OSS) development projects usually contribute voluntarily without expecting direct compensation for their work. One of the central puzzles raised by the success of OSS is the motivation of the participants; why top-notch programmers choose to write software that is released for no fee. In order to respond to this peculiarity employing a meta-research method, we first identify and review theoretical perspectives from diverse disciplines including economics, sociology, political science, anthropology, psychology, and management. Then, we suggest a comprehensive framework that provides a holistic understanding of the puzzle in question. Reviewing key empirical studies based on the suggested framework, we also suggest a future research agenda.

서비스품질, 서비스가치, 명성, 감정반응, 고객만족과 재이용의도의 구조적 관계 : 의료서비스에서 서비스관계의 조절효과를 중심으로 (A Study on the Structural Relationship among Service Quality, Service Value, Reputation, Emotional Response, Customer Satisfaction and Repurchase Intention : Focused on The Moderating Effect of Service Relationship in Healthcare Services)

  • 김성수
    • 경영과학
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    • 제29권2호
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    • pp.105-125
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    • 2012
  • As medical service industry is transformed into the market centered on consumers, medical service quality patients recognize is emphasized as the powerful means to ensure competitive advantage among hospitals in the fierce medical markets. Many researches have been done on the definition of medical service quality, developing a scale to measure it, patient satisfaction, hospital repurchase and oral transmission intention, but integrated studies have not been done sufficiently on the patient' cognitive emotional aspects. For these research purposes, based on service relation, service quality, physical surroundings, human services, corporate reputation, service value, emotional response, customer satisfaction and repurchase intention, this paper suggests a theoretical modeling composed of hypotheses on the relations of each theoretical variable. In addition, the moderating effect of service relationships is investigated based on the structural equation model.

Relationship between Organizational Size and Performance in Public Management : Mediating Effect of Organizational Goal Ambiguity

  • Lee, Soochang;Kim, Daechan
    • International Journal of Advanced Culture Technology
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    • 제8권3호
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    • pp.18-27
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    • 2020
  • This study is to corroborate the relationship between organizational size and performance in the Korean government context. Hence, this study aims to advance research on the relationship between organization size and performance by considering mediating variable: organizational goal ambiguity, which helps understand how organizational size affects organizational goal ambiguity in government and the organizational goal ambiguity has an influence on organizational performance. Bases on theoretical review, we assume that there is the inverted U-shaped relationship between the number of employees and budget size and organizational performance. From the results of path analysis, it shows that organizational size in the Korean government has a negative correlation, "a linear relationship", with organizational performance. Budget size has mediating variables, but the number of employees not. We try to suggest implications on the relationship between organizational size and performance in terms of theoretical perspectives in the context of the Korean government.

Measurement Issues across Different Cultures

  • Lee, Ju-Hee;Jung, Duk-Yoo
    • 대한간호학회지
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    • 제36권8호
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    • pp.1295-1300
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    • 2006
  • Purpose. The purposes of this methodologic paper are to (1) describe theoretical background in conducting research across different cultures; (2) address measurement issues related to instrument administration; and (3) provide strategies to deal with measurement issues. Methods. A thorough review of the literature was conducted. A theoretical background is provided, and examples of administering instrument in studies are described. Results. When applying an instrument to different cultures, both equivalence and bias need to be established. Three levels of equivalence, i.e., construct equivalence, measurement unit equivalence, and full score comparability, need to be explained to maintain the same concept being measured. In this paper, sources of bias in construct, method, and item are discussed. Issues related to instrument administration in a cross-cultural study are described. Conclusion. Researchers need to acknowledge various group differences in concept and/or language that include a specific set of symbols and norms. There is a need to question the philosophical and conceptual appropriateness of an assessment measure that has been conceptualized and operationalized in a different culture. Additionally, testing different response formats such as narrowing response range can be considered to reduce bias.