• Title/Summary/Keyword: concept definition

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Concept definition of Small-Medium Reactor Coolant System using System Engineering

  • Park, Jung Hwan;Jung, Jae Cheon
    • Journal of the Korean Society of Systems Engineering
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    • v.10 no.1
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    • pp.33-41
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    • 2014
  • New design concept of Reactor Coolant System (RCS) including a reactor assembly for the SMR is introduced in this work. An exploration of new type of reactor that is advanced from proposed SMRs is performed by using systems engineering approach. In this point of view project structured on three main phases; needs analysis (NA), concept exploration (CE), and concept definition (CD). Main objectives as an output of the CE stage are a small size, low cost, shortening the schedule, and enhancing safety. The SMRs usually have a small size requirement. In order to meet the size requirement and to achieve a productivity, in other words, easiness to manufacture, this paper suggests an integrated PWR design concept through researching predecessors. Although the integrated PWR concept provides many advantages, it has disadvantages that composite of maintenance and a low availability problem. Therefore, this paper comes up with a run-to-fail design concept based on modular design to address the maintenance problem and to maximize the availability of SMRs as well as to be compatible with the overall-SMRs including Barge Mounted(BM)type.

A Study on Adult s Perception of Health Concept (건강개념의 의미에 관한 조사연구)

  • 변영순
    • Journal of Korean Academy of Nursing
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    • v.18 no.2
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    • pp.189-196
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    • 1988
  • Health, a major concept in nursing, has not yet consistent or agreed upon definition. Although effective health care depends on clear communication between health care provider and client clear definition of health would enhance the promotion of quality in health care. There are no agreed definitions or criteria for overall health. An essentialstep would seem to be to determine commonly held meaning about the concept of health. Therefore, the study was aimed at identifying the Adult's perceptions of health concept. The subject's consisting of 312 adults, who were sampled through area sampling from May 10 to May 30,1988. The instruments used for this study were Health Conception Scale, which was developed by Smith, Laffrey's revised and tested its reliability. The data was Analyzed by S.P.S.S. program and the results were as follows ; 1. The results of the reliability test for content of health concept was $\alpha$=.87. 2. The respondents perception of Health Meaning were inclined to emphasize the functional / role performance dimension rather than clinical dimension. 3. The perceptual level of health concept was proved to be significantly different by the variable : age, sex, religion, area marital status. In conclusion, adult's perception of Health Concept is revealed that functional and role performance dimension is more important than other dimensions. Futher study is necessary to clarify the structure of functional, adaptive, eudaimonistic dimension and systematic study with subculture will be and repetitive verification and modification of this tool is demanded.

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The Study on the Concept of Elementary School Students Regarding the Stratum (초등학생들의 지층에 대한 개념 연구)

  • Kim, Deok-Ho;Hong, Seung-Ho
    • Journal of Korean Elementary Science Education
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    • v.33 no.4
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    • pp.607-619
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    • 2014
  • The purpose of this study is to investigate the degree of concept understanding on the stratum for elementary school students. For this objective, questions on the stratum concept were developed, and concept survey was conducted for random sampling of $5^{th}$ and $6^{th}$ grade 536 students. As a result, students chosen correct answers of the average 57.4% for 16 questions. Below the average rate of correct answers in each domain were 1 question in the definition of the stratum, 3 questions in formation of the stratum, and 4 questions in features of the stratum. Especially, the percentage of correct answers were appeared in lowly that the difference between the visible side and non visible side on the stratum, the definition and formation process of a fault and the main cause of the stratum's exposure. Also, between the residence, grade, and gender of students, there were significant differences in 2 questions, 7 questions, and 1 questions, respectively. Therefore, many elementary school students do not have high understanding about the stratum concept. Through the results of this study, it can be contributed to find an efficient ways as a basic data for modify misconceptions of the stratum to the scientific concept.

Concept Development Using Hybrid Model for the Concept, Patient Respect (환자 존중 개념 개발)

  • Yoo, Myoung-Ran
    • Korean Journal of Adult Nursing
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    • v.15 no.1
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    • pp.137-145
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    • 2003
  • Purpose: This research is a descriptive study to explore "patient respect" in nursing. Respect was analyzed as a concept in the domain of the patient. The Hybrid Model suggested by Schwartz-Barcott and Kim was used in this study. Method: For the theoretical phase, nursing and other literature were reviewed to analyze attributes and develop a working definition of the concept, respect. For the fieldwork phase, four subjects in two general hospitals in Seoul participated. With the participants' permission, the data was collected between January and April, 2002, through in-depth interview and participant observation. The data analysis progressed at the same time as the fieldwork. Data analysis proceeded according to the analysis method of Strauss and Corbin. Result: The final attributes of patient respect are suggested by consideration, recognition, cordial treatment, concern, honesty, acceptance. The final definition of patient respect as a concept in the domain the of patient is suggested by "Patient respect is that the patient is recognized as an individual with worth and is accepted, and considered to be that kind of an individual person. In addition, the patient is recognized to be an independent person and is treated with concern and honesty." Conclusion: The results of the analyses is helpful in integrating into a comprehensive description of the concept, Patient Respect.

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Conceptual Understanding of Functions through a Graphing Calculator (그래핑 계산기를 이용한 함수의 개념적 이해)

  • Choi-Koh Sangsook;Lee Yunkyoungs
    • Journal of the Korean School Mathematics Society
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    • v.8 no.2
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    • pp.203-222
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    • 2005
  • The purpose of this study is to investigate students' understanding of functions based on concept image and concept definition suggested by Vinner, For the study a graphing calculator was provided as a tool for students to use for their exploration. Three students participated in the study using the qualitative research method to identify their processes of understanding functions. The student with previous experiences of the functions had various concept images about the functions and did not have many opportunities to modify their images because the student did not want to depend on the calculator. However, the student who did not have many chances to study about the functions before used the calculator effectively for developing the concept definition on the functions. The calculator played an important role in connecting different representations and finding relationships between these representations supported by dynamic exploration.

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A Study on the Definition of Terrorism Viewed from Lawful Meanings (법제적 의미에서 본 테러리즘의 정의에 관한 연구)

  • Kwon, Jeong-Hoon;Kim, Tae-Hwan
    • 한국방재학회:학술대회논문집
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    • 2008.02a
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    • pp.139-142
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    • 2008
  • A terror is more grave than any other one in behavior, and the criminals have to be punished so much and be discriminated from other ones, too. So, a concept of general crime and terror has to be defined. It is finished in the academic area to some extent, but, it is not sufficient in lawful area so much. Afterwards, it is necessary to establish counter-terror protection laws regulating terror crimes directly. In addition, it is necessary to define concretely and clearly the terror activity and deduce the definition of terrorism.

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A Basic Study for the Legal Definition of Cultural Property Terminology related to the Architecture (건축 문화재 용어의 법제도적 개념 정의를 위한 기초 연구)

  • Joo, Sang-Hun
    • Journal of architectural history
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    • v.27 no.5
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    • pp.27-38
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    • 2018
  • The purpose of this study is to identify the legal definition and usage of cultural property term related to the architecture within the cultural property-related legal system and general legal system, and to present proper terminology and specific concepts that can be used for the architecture as cultural properties. In the current cultural property legislative system, terms about the architecture are diverse and obscure, and the definition of each term is different from the concept in the general legal system. In this context, this study presented the terminology of 'the architectural heritage' as 'a cultural property by construction act' to cover whole cultural properties related to Korean architecture. And the conceptual scope of the architectural heritage is divided into the technology and the performer related to the act, the record and the building related to the product. and Each concept needs to be specifically tailored to its object and scope. Systematic definition of terms for cultural properties related the architecture can positively influence systematization of cultural property preservation and management as well as empirical research and education on Korean architecture.

History of definitions of the Zheng (證) - a study based on 20th century Chinese literatures - (현대 증(證) 정의의 역사 -20세기 중국의 문헌을 중심으로-)

  • Kim, Kiwang
    • The Journal of the Society of Korean Medicine Diagnostics
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    • v.20 no.1
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    • pp.45-50
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    • 2016
  • Objectives Although the word Zheng (證) is widely used basic term in nowaday's East Asian traditional medicine, it's definition can't be found in ancient texts before 20th century, and the history in which that term got general meaning in public, have not been clearly introduced. So the present author show the way Zheng confirm it's modern implication. Methods To search the books that contain any contents on Zheng's definition, the author mainly used the electronic texts of Super Star Reader (超星閱讀器). To search modern study article on Zheng's definition, the author used China National Knowledge Infrastructure (www.cnki.net). Results The present study shows that : although Treatments according to disease Pattern Identification (辨證施治) have been prominent treatment modality in East Asian traditional medicine, the general definition of disease Pattern (證) was given in late 20th century. Especially from 1955 to 1965, some major scholars like Ren Ying Qiu (任應秋), Zhu Yan (朱顔), Qin Bo Wei (秦伯未) and Jiang Jian Fu (蔣見復) did important roles in it's concept creation. Conclusions Modern concept of Zheng (證) was defined in late 20th century.

A Study on the Number Concept of Middle School Students (중학교 학생들의 수 개념 조사)

  • 나귀수
    • School Mathematics
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    • v.3 no.2
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    • pp.267-279
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    • 2001
  • The aim of this study is to examine the number concept of middle school student at grade 9. The research problems of this study are "Can the students classify the various number correctly\ulcorner", "How do the students understand the proposition related to the number concept\ulcorner", and "How do the students know the definition of rational number, irrational number, and real number\ulcorner". In order to examine these problems, we analyze the students' responses about the questions related to the number concept. The result of this examination is that the number concept of students is very insufficient and lacking.

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Conceptual Study on User Experience in HCI: Definition of UX and Introduction of a New Concept of CX (Co-Experience) (사용자 경험에 대한 HCI적 관점에서의 개념적 고찰 사용자 경험의 개념 정의와 공동 경험감 개념의 제안)

  • Moon, Jee-Hyun;Lim, Seong-Taek;Park, Cha-La;Lee, In-Seong;Kim, Jin-Woo
    • Journal of the HCI Society of Korea
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    • v.3 no.1
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    • pp.9-17
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    • 2008
  • The concept of UX(User Experience) has been an important issue both in academic and practical areas in recent years. However, the concept had either been lacking an implicit definition or confused with otherrelated concepts in most cases. In this paper, a conceptual definition of UX and the optimal UX in HCI as well as conditions of it is presented based on John Dewey's pragmatism. Also, due to the current shifts in the technological environment in HCI, it is impossible to fully explain the phenomena by using the current concept of UX as users experience technology not only individually but also socially. Therefore, this paper introduces the concept of users' shared experience, co-experience(CX), and its requisites.

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