• Proceedings of the KIEE Conference
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• 2002.07c
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• pp.1507-1510
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• 2002

In this study linear and nonlinear formula were deduced clearly in cases of the free rotational dipole theory and the phenomenological response theory and practical usefullness of formula by these two theories was discussed.

• Bulletin of the Korean Chemical Society
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• v.22 no.1
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• pp.43-45
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• 2001

This study simplifies the phenomenological theory of viscosity previously proposed by the present authors. This simplified theory has only two thermodynamic properties and one parameter, as opposed to its predecessor, which has many, allowing for easy calculation of the liquid viscosities. The viscosity of liquid metals, an excellent test for checking the validity of the liquid theory, can be calculated using the equation based on the simplified theory. The calculated results by the current theory turn out to be good for the liquid metals, including sodium, potassium, rubbidium, cesium, lead and mercury.

• Journal of Astronomy and Space Sciences
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• v.32 no.2
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• pp.127-136
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• 2015

We present a by-product of our long term photometric monitoring of cataclysmic variables. 2MASS J18024395 +4003309 = VSX J180243.9 +400331 was discovered in the field of the intermediate polar V1323 Her observed using the Korean 1-m telescope located at Mt. Lemmon, USA. An analysis of the two-color VR CCD observations of this variable covers all the phase intervals for the first time. The light curves show this object can be classified as an Algol-type variable with tidally distorted components, and an asymmetry of the maxima (the O'Connell effect). The periodogram analysis confirms the cycle numbering of Andronov et al. (2012) and for the initial approximation, the ephemeris is used as follows: Min I. BJD = 2456074.4904+0.3348837E. For phenomenological modeling, we used the trigonometric polynomial approximation of statistically optimal degree, and a recent method "NAV" ("New Algol Variable") using local specific shapes for the eclipse. Methodological aspects and estimates of the physical parameters based on analysis of phenomenological parameters are presented. As results of our phenomenological model, we obtained for the inclination $i=90^{\circ}$, $M_1=0.745M_{\odot}$, $M_2=0.854M_{\odot}$, $M=M_1+M_2=1.599M_{\odot}$, the orbital separation $a=1.65{\cdot}10^9m=2.37R_{\odot}$ and relative radii $r_1=R_1/a=0.314$ and $r_2=R_2/a=0.360$. These estimates may be used as preliminary starting values for further modeling using extended physical models based on the Wilson & Devinney (1971) code and it's extensions

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.7
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• pp.200-207
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• 2017

The components that influence recovery were investigated to understand the recovery lived experience of stroke inpatients. Using the phenomenological research methodology reported by Giorgi, 3 conversation sessions were performed on 12 stroke inpatients. The conversations were recorded through agreement, in which the data were analyzed according to the scientific phenomenological methods. Sixteen summarized meaning units were integrated to deduct 10 main meanings and 6 themes. The themes of the restoration experience included the burden of help, performance of independent roles, self-overcoming, return to society, psychological support, and enhanced motivation for recovery. This can be used as data to predict the difficulty that stroke patients experience during hospitalization and propose a direction of intervention for restoration. Rehabilitation experts must provide intervention for the restoration of stroke patients based on the formation of a therapeutic relationship to strengthen the psychological support and motivation, and make strategies for self-overcoming and a proper cooperation relationship with their family.

• The Journal of the Korea Contents Association
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• v.17 no.1
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• pp.100-112
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• 2017

The purpose of the phenomenological study was to explore the practitioner's experiences according to practitioner's perception and to enrich our understanding about them. In order to accomplish the purpose of research, 7 practitioners with out-of-school youths participated. Data were collected through in-depth interview. In addition, the data were analyzed by a Colaizzi's phenomenological analysis. The findings showed that the meaning of experiences in practitioners with out-of-school youths were identified as 17 themes and 5 categories. The 5 categories consisted of "School is not amused", "Family is unhappy", "They hide behind pain or excuses", "Let's go together, until it can be found", "We hope the world changed". Based on the findings, we discussed the meaning of experiences in practitioners with out-of-school youths. And lastly, this results made suggestions for the social welfare policies and practices for them.

• The Journal of the Korea Contents Association
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• v.20 no.9
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• pp.494-502
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• 2020

This study is a phenomenological study conducted to gain a deeper understanding of the positive psychological capital experience of the elderly women who participated in the long-term movement. In Korea, women are eight years older on average than men, and two-thirds of the elderly in need are women, so research on the issue of women and senior citizens is urgent. The research participants include seven female senior citizens from the Seoul-based sports center. The data collection was conducted through in-depth interviews once for 90 to 180 minutes and twice per participant from March to May 2020, and was analyzed using the phenomenological research method of Colaizzi. The analysis results showed that regular life, relationship and interest life, changing life, and satisfying life were factors that acquired and developed positive psychological capital for elderly women, which were possible only if they maintained their health, regularity and relationship. The experience of participants who achieved successful aging by acquiring positive psychological capital through exercise is suggested as a solution to aging social problems, and furthermore, it is expected to serve as a healthy guide for successful aging for young and old people ahead of their old age.

• Journal of the Korea Convergence Society
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• v.8 no.10
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• pp.257-271
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• 2017

In this study, phenomenological methodology was used to understand the experience of family management style in mothers who have children with atopic dermatitis. For study methods, in-depth interview was conducted on 9 mothers residing in Seoul and the approach from phenomenological methodology by Colaizzi was used. As a result, 69 significant statements were deduced as well as 21 themes, 10 theme clusters, and 4 categories. These main categories include experiences of accepting atopic dermatitis as a reality, family management style for overcoming atopic dermatitis, reality of facing chronic fatigue, and hope and expectation for the child's health. Our study show that the intervention for improving family management style regarding atopic dermatitis is required including the enhancement of the mothers' quality of life and the recovery of family relationship.

• The Journal of the Korea Contents Association
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• v.13 no.2
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• pp.277-295
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• 2013

The purpose of the phenomenological study was to explore the meaning of family adjustment process experience according to married immigrant women's perception and to enrich our understanding. In order to accomplish the purpose of research, six married immigrant women participated. Data were collected through in-depth interview. In addition, the data were analyzed by a Colaizzi's phenomenological analysis. The findings showed that the meaning of family adjustment process experience in married immigrant women were identified as 37 themes and 8categories. The 8 categories consisted of "deciding to marry a foreigner", "first meeting and marriage", "starting to living as a korean", "getting along with husband", "becoming a family with in-laws", "playing one's role as a mother", "missing hometown and family", "adjusting to living in Korea". Based on the findings, we discussed the meaning of family adjustment process experience in married immigrant women. And lastly, this results made suggestions for the social welfare policies and practices for them and their families.

• Journal of Korean Academy of Nursing
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• v.29 no.6
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• pp.1208-1220
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• 1999

The purpose of this study was to describe the differences in three phenomenological research methods used to understand the experience of families of patients with cancer and so provide as guideline to novices first attempting qualitative research. The subjects were 3 family members - spouse, daughter, daughter-in-law -of cancer patients at S-hospital. Unstructured deep interviews were carried out and taped for further analyzed. Interviews were analyzed using three phenomenological methods ; Giorgi's, Colazzi's, and Van Kaam's. The results are as follows. : The experience of family the analyzed using Giorgi's method showed different characteristics according to the family members' role. According to Colaizzi's method, they experienced burden, a willingness to care, role conflict, thanks to family and significant others, and ambivalence about treatment. Using Van Kaam's methodology, two categories were identified ; change of family function and burden. Themes in change of family function were positive attitude(9), role conflict(6), negative attitude(5), active attitude(2), and passive attitude(2) ; Themes in burden were emotional burden, physical burden, and economic burden. The result from using Giorgi's method were centered or individual characteristics and these results constituteds situational structured description and a general structured description. From Colaizzi's method the focus was on the common experience of all fo the subjects. In Van Kaam's method, subthemes (13), themes(8), and categories(2) were identified. So researchers should choose the qualitative method according to their research goals and methodological characteristics.

• Korean Journal of Family Social Work
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• no.23
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• pp.183-224
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• 2008

This study is a phenomenological study on the experience of mothers of sexually abused children. The participants were 6 mothers whose children were sexually abused. The data was then analyzed according to Colaizzi's method. 253 sentences and phrases, 65 formulating meanings that were general, metaphysical, 27 theme, 13 theme clusters, 5 categories based on interview were selected. The following are the findings of study. 1. Shock : Perplexity, Confusion 2. Coping ; Settlement 3. Mental anguish: Anger, Anxiety, Suffering, Isolation 4. Conquest: Stabilization, Acceptance, Consolation, Change 5. Scar: Extant of anxiety, Concern The results show that the experience of the mother of sexually abused children changed over a period of time and they were willing to protect their children and resolve the issues within society. This research contributed to an understanding of the experience of mothers of sexually abused children, using phenomenological research method without the resource of previous study. This study suggests that social welfare services is needed for sexually abused children and their mothers.