수용액에서 활성화 에너지를 이용한 모발 손상 척도 개발

전선복 ( Seon Bok Jeon ),전정애 ( Jeong Ae Jeon ),정병구 ( Byeong Goo Jeong ) 한국미용학회 2010 한국미용학회지 Vol.16 No.4

This study was undertaken to analyze the degree of hair damage after measuring activation energy from hair protein isotherm by Lowry method. The virgin hair were dyed and dried naturally and the cuticles were observed with scanning electron microscope (SEM) image to examine the hair damage. The SEM image showed the overlapped scale of cuticle and regular and distinct borders of scale in the virgin hair, but showed the loose, shifted, and shed scale of the cuticle in the hair dyeing. To evaluate the morphological damage of the virgin and dyeing hair observed with SEM image, the level of damage were classified into 5 levels, and evaluated by ten instructors of hairdressing. There were significant differences in hair damage. The hair damage of the dyeing hair (3.50±0.53) was higher than that of the virgin hair (1.60±0.52), but the tensile strength of the virgin hair (148.3±3.16 g) was higher than that of the dyeing hair (132.3±2.62 g) (p<0.05). The protein loss according to time sequence was analyzed quantitatively by the Lowry method after immersion in aqueous solution at 298K, 313K, and 343K, respectively. The protein loss was increased as time passed and increased with temperature elevation in aqueous solution. The amount of the protein loss was more in the dyeing hair than the virgin hair. On the contrary, the estimated activation energy values for protein loss was opposite, the activation energy of the virgin hair (74.9±3.66kJ/mol) was higher than that of the dyeing hair (55.5±3.40 kJ/mol) (p<0.05). In conclusion, it is suggested that the activation energy from hair protein isotherm can be highly useful as degree of hair damage.

미용실의 관계혜택이 고객만족 및 고객충성도에 미치는 영향

전선복 ( Seon Bok Jeon ),정병구 ( Byeong Goo Jeong ),이재숙 ( Jae Sook Lee ) 한국미용학회 2013 한국미용학회지 Vol.19 No.2

The purpose of this study was to investigate the effect of relationship benefits on customer satisfaction, customer recommendation and defection intentions at the beauty salons. Participants of this study were 299 in accordance to convenience sampling. SPSS 15.0 was employed for Pearson correlation coefficient, calculation for cronbach`s α, exploratory factor analysis, regression analysis. Also, AMOS 7.0 was employed for confirmative factor analysis and path analysis. The research results may be summarized as follows. First, confidence benefits and special treatment benefits in relationship benefits were found to be statistically significant to customer satisfaction, especially confidence benefits as the more influential determinant affecting customer satisfaction. But social benefits were not found to be statistically significant to customer satisfaction. Second, customer satisfaction was found to influence customer recommendation and defection intentions. Finally, it was founded that customer satisfaction mediated the relationship between relationship benefits and customer recommendation and defection intentions.

미용실 서비스품질이 고객의 감정적 반응과 재방문 의도에 미치는 영향

전선복(Seon-Bok Jeon),전정애(Jeong-Ae Jeon),이재숙(Jae-Sook Lee) 한국인체미용예술학회 2013 한국인체미용예술학회지 Vol.14 No.2

This paper investigated the impact of service quality in beauty shops on the revisit intention of customers and conducted an empirical test on its mediated effect on the emotional reaction of customers. The results of the empirical test are described below. In accordance with the analysis of the impact of service quality in a beauty shop recognized by customers on their emotional reaction, the pass coefficient of certainty showed the highest score. This means that the pass coefficient of certainty has the highest impact on the emotional reaction of customers, followed by sympathy, service tangibility and reliability, in that order. Next, for the customers experiencing a positive emotion while being served in a beauty shop, service quality had a significant impact on the intention to revisit. Finally, the emotional reaction of customers played the role of mediator in the relationship between the service quality in a beauty shop and the intention to revisit.

1인 미용실의 관계혜택이 고객충성도에 미치는 영향에 관한 연구 : 고객신뢰의 매개효과

전선복(Seon Bok Jeon) 한국인체미용예술학회 2015 한국인체미용예술학회지 Vol.16 No.1

This study proposes an effective marketing plan for individually owned and operated beauty salons by investigating the effects of its relational benefits on customer trust and loyalty during the current fierce market competition. A study was conducted with 322 independent beauty salon customers in Seoul, Gyeonggi-do, Daejeon and Chungcheong-do, and Gwangju and Jeolla-do. In terms of data analysis, frequency analysis, reliability analysis, confirmatory factor analysis and correlation analysis were conducted using SPSS 15.0 and Amos 18. A path analysis was performed using a structural equation model for hypothesis testing. The study results found the following: First, according to the analysis on the effects of relational benefits perceived by the independent beauty salon customers on customer trust, significantly positive effects were found i n three sub-factors (confirmatory, social and special benefits). Second, in terms of the effects of the relational benefits on customer loyalty, significantly positive effects were observed in confirmatory and special benefits. Third, in terms of the effects of customer trust on customer loyalty, a significantly positive effect was found in trust. Fourth, in terms of the relationship between relational benefits and customer loyalty, a partial mediating effect was found in trust.

염색 후 퍼머넌트웨이브모의 손상에 관한 연구

전선복 ( Seon Bok Jeon ),전정애 ( Jeong Ae Jeon ),정병구 ( Byeong Goo Jeong ) 대한미용학회 2010 대한미용학회지 Vol.6 No.4

This study was undertaken to analyze the degree of hair damage after measuring activation energy from hair protein isotherm. The virgin hair were damaged by permanent wave after dyeing. The cuticles were observed with scanning electron microscope (SEM) to examine the hair damage. According to the observation of hair cuticle, the cuticles of the virgin hair were regular, close to each other and smooth, but the cuticles of the permanent wave hair after dyeing were shifted and shed. To evaluate the morphological damage of the virgin and permanent wave hair after dyeing observed with SEM image, the level of damage were classified into 5 levels, and evaluated by ten instructors of hairdressing. There was significant difference in hair damage. The hair damage of the permanent wave hair after dyeing (3.70±0.48) was higher than that of the virgin hair (1.60±0.52), but the tensile strength of the virgin hair (148.3±3.16 g) was higher than that of the permanent wave hair after dyeing (126.1±6.28 g) (p<0.05). The protein loss according to time sequence was analyzed quantitatively by the Lowry method after immersion in aqueous solution at 25℃(298 K), 40℃(313 K), and 70℃(343 K), respectively. The protein loss was increased as time passed and increased with temperature elevation in aqueous solution. The amount of the protein loss was more in the permanent wave hair after dyeing than the virgin hair. On the contrary, the estimated activation energy values for protein loss was opposite, the activation energy of the virgin hair (74.9±3.66 kJ/mol) was higher than that of the permanent wave hair after dyeing (39.4±3.88 kJ/mol) (p<0.05). In conclusion, it is suggested that the activation energy from hair protein isotherm can be highly useful as degree of hair damage.

미강(Rice Bran) 에탄올 추출물의 항산화 활성과 티로시나제 저해 활성

전선복 ( Seon Bok Jeon ),전정애 ( Jeong Ae Jeon ),정병구 ( Byeong Goo Jeong ) 한국미용학회 2010 한국미용학회지 Vol.16 No.2

In this study Rice Bran was used for investigating the anti-oxidative activities and skin whitening effects. Rice Bran extract prepared with ethanol. Inhibitory effect of Rice Bran Ethanol Extracts (RBEE) onto free radical generation was determined by measuring DPPH scavenging activities in vitro. Intracelluar oxidation was determined by DCF-DA assay. As a result, anti-oxidant activity is in a dose dependant manner. RBEE showed 94% of free radical scavenging activity on DPPH at a concentration of 500ug/ml compare to control. Human dermal fibroblast (HDF) cells incubated with RBEE showed reduces ROS effectively. The inhibitory action of RBEE on mushroom tyrosinase was revealed. Tyrosinase inhibitory activities of RBEE showed a dose response relationship. RBEE showed 21% inhibitory effect on tyrosinase activity in the mushroom tyrosinase of 20ug/ml and RBEE showed effectiveness in inhibiting L-DOPA auto-oxidation. On the other hand, inhibitory activity of tyrosinase were lower than that of Kojic acid. These results suggest that Rice Bran may prevent skin aging and coloring via anti-oxidative effect and inhibitory activity of tyrosinase.

미용실의 서비스 품질과 고객의 감정적 반응, 추천의도 및 이탈의도의 관계

전선복 ( Seon Bok Jeon ) 한국미용학회 2015 한국미용학회지 Vol.21 No.4

This study was conducted for the purpose of identifying the correlations among beauty shop`s service quality and emotional response, recommendation intention and defection intention of customers. The subject of the research consisted of beauty shop`s customers and data collection was conducted through convenience sampling. The collected data was processed using SPSS 17.0 programs and subject to the t-test and one-way ANOVA. The results of this study are described below. First, the beauty shop`s service quality was classified by the tangibles, reliability, responsiveness, certainty and empathy quality. Also, emotional response was classified by the positive and negative emotion. Second, according to the analysis on the effects of beauty shop`s service quality on emotional responses, significantly effects were found in tangibles, certainty and empathy factors. Third, in terms of the effects of the positive emotional response of beauty shop`s customer on the customer recommendation intention, significantly positive effects were observed, while the negative emotional response of beauty shop`s customer had a negative impact on the customer recommendation intention. Fourth, in terms of the effects of the negative emotional response of beauty shop`s customer on the defection recommendation intention, significantly positive effects were observed. Fifth, there were partially differences in the beauty shop`s service quality and customer emotional responses by general characteristics. Finally, there were significant differences in the beauty shop`s customer recommendation intention by job and the beauty shop``s customer defection intention by age and monthly income.

가을철 대기환경 중 수용성 이온성분의 침적특성

강공언,김남송,전선복,Kang, Gong-Unn,Kim, Nam-Song,Jeon, Seon-Bok 한국환경보건학회 2006 한국환경보건학회지 Vol.32 No.4

In order to investigate the daily deposition characteristics of water-soluble inorganic components in airborne deposit on the Iksan, deposition samples were collected using a deposition gauge from October 16 to November 1, 2004. Deposition samples were collected using two different sampling gauges, a dry gauge and a wet gauge, respectively. To get wet the bottom of wet gauge during the sampling period, the volume of $30{\sim}50ml$ distilled ionized water was added in a wet gauge before the beginning of each deposition sampling. Deposition samples were collected twice a day and analyzed for inorganic water-soluble anions ($Cl^-,\;{NO_3}^-,\;{SO_4}^{2-}$) and cations (${NH_4}^+,\;Na^+,\;K^+,\;Mg^{2+},\;Ca^{2+}$) using ion chromatography. Qualify control and quality assurance of analytical data were checked by the data obtained from reinjection of standard solution, Dionex cross check standard solutions, and random several deposition samples, and measured data was estimated to be reliable. Considering the deposition sample volume, the sampling time, the surface area of sampling container, and the ion concentration measured, the daily deposition amounts for measured ions were calculated in $mg/m^2$. The total daily deposition amounts of all measured ions for dry and wet gauge were $7.5{\pm}2.8$ and $17.7{\pm}4.2mg/m^2$, respectively. A significant increase in deposition amount during rainfall days was observed for both wet gauge and dry gauge, having no difference of deposition amount between in wet gauge and in dry gauge. The mean deposition of all ions measured in this study were higher in wet gauge than in dry gauge because of the surface difference of the sampling container, especially for ${NH_4}^+\;and\;{SO_4}^{2-}$. The mean deposition amounts of ${NH_4}^+\;and\;{SO_4}^{2-}$ in wet gauge were found to be about 10 times and 3 times higher than those in dry gauge, while the rest of the chemical species were equal or a little higher in wet gauge than in dry gauge. Dominant species in dry gauge were ${NO_3}^-\;and\;Ca^{2+}$, accounting for 21% and 28% of the total ion deposition, whereas those in wet gauge were ${SO_4}^{2-}\;and\;{NH_4}^+$, accounting for 19% and 41% of the total ion deposition, respectively.

국가 보건통계체계의 개발을 위한 연구 -주요국가간 비교연구를 중심으로-

전태희 ( Tae Hee Jeon ),이무식 ( Moo Sik Lee ),김건엽 ( Keon Yeop Kim ),나백주 ( Bak Ju Na ),이영성 ( Yong Sung Lee ),윤석준 ( Seok Jun Yoon ),김남송 ( Nam Song Kim ),전선복 ( Seon Bok Jeon ) 한국법정책학회 2005 법과 정책연구 Vol.5 No.1

활성화 에너지를 이용한 퍼머넌트웨이브모의 손상도 연구

전정애(Jeong Ae Jeon),정병구(Byeong Goo Jeong),전선복(Seon Bok Jeon) 한국인체미용예술학회 2011 한국인체미용예술학회지 Vol.12 No.2

In this work, the degree of hair damage for permanent wave hair was investigated by measuring activation energy from hair protein isotherm. The virgin hair were damaged by treatment of permanent wave and dried naturally. The hair damage was measured by scanning electron microscope (SEM) image, tensile strength, Hunter’s color value, and activation energy in aqueous solution. The SEM image in the permanent wave hair showed the loose and shifted scale of the cuticle. The hair damage of the permanent wave hair (2.80±0.63) was higher than that of the virgin hair (1.60±0.52) in the morphological damage observed with SEM image. Lightness (L value) of the permanent wave hair (23.7±0.63) was higher than that of the virgin hair (22.2±0.51) in Hunter’s color values (p<0.05), but difference of redness (a value) and yellowness (b value) was not observed. The tensile strength of the permanent wave hair (135.1±2.47g) was lower than that of the virgin hair (148.3±3.16g) (p<0.05). Also. the activation energy of the permanent wave hair (65.2±3.33kJ/mol) was lower than that of the virgin hair (74.9±3.66kJ/㏖) (p<0.05).