• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.10 no.2
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• pp.1-17
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• 2000

We investigated dissatisfaction of elements of local exhaust system, needs for local exhaust system, and information networks for local exhaust system from June 1998 to September 1999 using the questionnaire structured. It contained questions concerning general characteristics of factory and local exhaust system, troubles and dissatisfaction of elements of local exhaust system, and information networks for local exhaust system. The collected data were analyzed by descriptive statistics analysis. Information networks for local exhaust system were analyzed by multidimensional scaling using path distance of network analysis and by graph analysis using Krackplot. Among complaints of local exhaust system, that of duct has show the highest percentage of complaint. In the information network for local exhaust system, Seoul is positioned in the center of network with mediating role.

• Journal of the Korean Institute of Intelligent Systems
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• v.11 no.7
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• pp.584-590
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• 2001

An inventory management system of manufacturing industry has a model of different kinds according to the objective and the situation. An inventory management system needs superior system technique in demand forecast, economical efficiency, reliability and application for stable supply of the finished goods, the raw materials and the parts. This paper proposes a demand forecast method based on fuzzy structured neural network, which uses min-operation and trapezoid membership function of fuzzy rules. So we can construct an intelligent inventory management system that make optimized decision-making for forecasting data with expert s opinion in fuzzy environment. The inventory management system uses intelligence agent and it could be adapted to a system environment change in order.

• Journal of Korean Academy of Nursing Administration
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• v.14 no.3
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• pp.352-363
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• 2008

Purpose: The purpose of this study was to investigate nursing services of Oncology Advanced Practice Nurses(OAPNs) from the view point of structure and process. Methods: Roles and practices of OAPNs for cancer patients on chemotherapy were investigated by semi-structured interview and survey. Subjects were 14 OAPNs in 3 hospitals. Results: OAPNs had high level of education and certification than registered nurses. Most subjects of OAPNs were patients on chemotherapy and OAPNs used most of their time in education and expert nursing practice. 57.1% of OAPNs used delegated order. They were satisfied with their job in general, but satisfaction in communication with nurse manager or resident doctor was low. Conclusion: These results will be the concrete explanation for the nursing services of OAPNs. On the basis of theses results, more study about effects of OAPNs will be needed.

• Journal of Korean Academy of Nursing
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• v.30 no.1
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• pp.47-59
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• 2000

The purpose of this study was to explore decision making phenomenon of living kidney donation experienced by kidney donors. Data were collected through semi-structured indepth interviews from 12 kidney donors. All interviewes were audiotaped and transcribed verbatim. Constant comparative analysis was used to analyze the data with NUDIST4.0 software program. process have effects on the execution of kidney donation. Based on the degree of "wish to give", three distinct patterns were identified: Voluntary, compromising, and passive. The voluntary decision making was the most frequent one, while the passive the least. The degree of "wish to give" was influenced by intimacy between the donor and the receipient, geographical locations, economical efficiency of kidney transplantation, and religion. Each pattern was explained by describing interfering and facilitating factors as well as other issues occured in the decision making process. The results of this study will help nurses make effective nursing intervention by understanding the characteristics of decision-making patterns and decision-making process to donate a living kidney.

• Journal of Korean Academy of Nursing
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• v.38 no.4
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• pp.603-611
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• 2008

Purpose: This study was to determine the mediator or moderator role of empowerment in the relationship between the head nurse's transformational leadership and organizational commitment as perceived by staff nurses. Methods: Data was collected from 451 nurses in a tertiary hospital located in B city by means of structured questionnaires. Data was analyzed with descriptive statistics, Pearson's correlation coefficient and hierarchial multiple regression using the SPSS program. Results: Empowerment showed mediating effects between the head nurse's transformational leadership and organizational commitment as perceived by staff nurses. However, empowerment did not show moderating effects. Conclusion: Nurses' perception of empowerment, the head nurse's transformational leadership and organizational commitment have a strong relationship. This finding suggests the importance of empowering nurses to increase organizational commitment.

• International journal of advanced smart convergence
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• v.6 no.3
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• pp.59-64
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• 2017

A wireless sensor network is a network in which nodes equipped with sensors capable of collecting data from the real world are configured wirelessly. Because the sensor nodes are configured wirelessly, they have limited power such as batteries. If the battery of the sensor node is exhausted, the node is no longer usable. If more than a certain number of nodes die, the network will not function. There are many wireless sensor network protocols to improve energy efficiency, among which LEACH Protocol is a typical example. The LEACH protocol is a cluster-based protocol that divides sensor space into clusters and transmits and receives data between nodes. Therefore, depending on how the cluster is structured, the shape of the energy cow may decrease or increase. We compare the network lifetimes of the existing LEACH protocols and the three types of protocols that have been improved using fuzzy methods for cluster selection.

• Journal of Agricultural Extension & Community Development
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• v.22 no.3
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• pp.301-319
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• 2015

Competitiveness strategies has been associated in the tourism literature as a crucial factor for the success of tourist. The study aims to explore the competitiveness strategies for tourism destinations by conducting in-depth interviews with probe questions. Thirteen community enterprises' managers in rural tourism communities were interviewed with a semi-structured interview questionnaire for one or two hours. From the interview data, eight themes in two dimensions were identified as competitiveness strategies of rural community enterprises in rural Korea. Differentiation strategies consist of new product development, service improvement, brand image improvement, advertise and public relation, and concentration. Cost leadership dimension includes cost reduction, increasing benefit, and long-term investment. The findings of this paper implicate the underlying the competitiveness strategies from managers' perspective.

• Korean Journal of Child Studies
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• v.22 no.4
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• pp.149-166
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• 2001

This study examined differences in function, structure, and satisfaction of adolescent friendships by differing patterns of internet usage and of real life versus internet friendships. Subjects were 396 male and female 10th grade students. Data were collected with structured questionnaires and analyzed by SPSS. Findings were that the internet functioned as a major field of interpersonal relationships for Korean adolescents. Among 3 types of internet usage patterns, pursuit of interpersonal relationship, constituted most of the functioning and the most intimate friendships and game pleasure had the fewest and least intimate friendships both in real life and on the internet. Subjects addicted to the internet had the most functioning friendships and the highest level of intimacy in friendships. As the level of internet addiction increased, the level of satisfaction in friendships in real life decreased while the level of satisfaction of friendships through the internet increased.

• Korean Journal of Child Studies
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• v.13 no.2
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• pp.229-240
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• 1992

Although play is a key element in child development, little research has been done on how play is conceptualized by adults directly involved with children on a daily basis. The purpose of the study was to determine meanings of the concept "play" held by mothers of preschool children in Korea. Specifically, the study sought to determine Korean mothers' conceptions of the nature and functions of play, and their conceptions of play in contrast to work. An open-ended/semi-structured interview instrument was constructed to generate research data. Interview questions focused on three content categories: (1) the nature of play, (2) the functions of play, and (3) conceptions of work. Questions in each content category consisted of four distinct types: (1) experience/behavioral, (2) opinion/value, (3) feeling, and (4) knowledge. The instrument was pilot-tested with two subjects, revised, and administered to eleven mothers of preschool children. Interview data were subjected to domain and taxonomic analyses. Analyses yielded two principal themes: (1) Play is viewed as an intrinsically motivated and pleasurable activity; (2) while play and work could be consonant, the values inherent in play and work are generally in opposition.

• Korean Journal of Child Studies
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• v.28 no.4
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• pp.209-227
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• 2007

A structured questionnaire was distributed to families using some of the ten specialized caring facilities throughout Gyeongbuk Province. Of the 294 responses, 242 were usable. Results showed that (1) facilities were most used by families of children with autism (31.3%) and by families with severely handicapped children (96.3%). (2) Suggestions for improving facilities, included physical-, performance-, and language-therapies (60%) and teachers with expertise in special education (47.8%).(3) More than half of the respondents were satisfied with the degree of care. (4) Satisfaction with degree of caring services varied with academic background of mothers, mothers' job status, degree of child's disability, length of usage, average expenditure for hospital visits, and burden to the family.