Optimal Safety Color of Working Garment for Forestry Industry

HeeJin Kim,Kyungmin Lee,DaEun Park,YungKyung Park 한국색채학회 2017 AIC 2017 Jeju Vol.2017 No.10

The function of safety clothes is to increase discrimination and visibility of the worker in order to prevent accidents at the workplace. It was shown that “laid-in” and “collision” items are located at the top in accidents of domestic forestry operation. The most visible fabrics the indoor environments were bright orange and red. The highest rank of temporal discrimination was found in samples with the highest saturation. Three types of patterns-bold, stripe, and cross-based on ISO was tested for visibility under indoor and outdoor conditions. We recommend a color saturation of about 80 or more, which affects the discrimination, and a color saturation of at least 50, which affects visibility. It is also recommended that the surface area is wide or spread in the same area at both near and far distance.

Sources for an Historical Demography of Korea : An Introduction

Park Heejin,Kim Duol The Academy of Korean Studies 2010 THE REVIEW OF KOREAN STUDIES Vol.13 No.3

Hepatoprotective Effect of Cordycepin-Enriched Cordyceps militaris Extract Powder on High Fat Diet-Induced Hepatic Steatosis in ob/ob Mice

Heejin Park,Eun-Young Gu,Ji-Seok Han,Mun Hyoung Bae,Youngha Seo,Youngha Seo 한국식품영양과학회 2018 한국식품영양과학회 학술대회발표집 Vol.2018 No.10

Evaluation of Moisture Sorption Characteristics in Polymer Material

Heejin Park(박희진) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.10

In this paper, the standard procedures for measuring moisture sorption properties of thin film form of polymer materials such as polyethylene terephthalate (PET) using thermo-gravimetric method to characterize the moisture diffusion in polymer is presented. Temperature dependent moisture sorption properties according to Arrhenius equation are investigated, in which the activation energy for diffusivity and solubility of PET film in humidity condition is analyzed for possible re-crystallization and characterization of temperature effect. The measurement of permeability is used for validation of moisture diffusion characteristics. Nonlinear properties of moisture diffusion dependent on concentration are investigated for the case of an interface with an inorganic material such as metal and non-Fickian model for measuring nonlinearity in moisture uptake dependent on concentration is presented. The Fickian/non-Fickian model based on the obtained moisture sorption properties is compared and validated analytically/ numerically.

Employee ownership in Defined Contribution and the Effect of the Pension Protection Act of 2006

Heejin Park 한국융합학회 2020 한국융합학회논문지 Vol.11 No.12

우리는 확정기여금 제도를 통한 근로자의 우리사주 소유가 경영진의 경영권 통제로부터 비롯되었다고 보고, 2006년 미국 연금보호법 제정이 근로자의 우리사주 소유와 기업성과의 관계에 미치는 영향을 살펴본다. 이를 위해서 1999년부터 2014년까지의 Form 5500 데이터를 이용해서 선형 회귀분석(Ordinary Least Square Regression)을 실시했다. 그 결과 우리는 근로자의 우리사유 소유가 높은 회사는 법이 채택된 이후 토빈의 Q로 측정한 기업 가치가 증가한 것을 발견했다. 이러한 결과는 2006년 연급보호법은 인해서 근로자의 우리사주 소유를 감소시키고 수탁자의 충실의무를 강화함으로써 경영권 통제 동기의 부정적인 영향을 완화하는데 효과적이라는 것을 시사한다. 본 연구의 결과를 기반으로 향후 2006년 연금보호법 제정이 근로자의 우리사주 소유와 주식성과 혹은 시장반응에 대한 연구를 진행할 수 있을 것이다. We posit that employee ownership through defined contribution (DC) plans results in managerial entrenchment, and then examine the effect of the enactment of the Pension Protection Act of 2006 on the relation between the employee ownership and firm performance. By conducting Ordinary Least Square regression with the data from Form 5500 over the period of 1999-2014, we find that firms with large employee ownership increase their firm value measured by Tobin’s Q after the adoption of the Act. These findings suggest that the adoption of the Act has been effective to mitigate the negative effect of managerial entrenchment by decreasing the employee ownership and reinforcing the fiduciary duty of plan trustees. Given the fact that we test the effects of the diversification rule on employee ownership using firm performance, further research could aim to examine the effects of the rule on employee ownership using stock return or market reaction.

액티브 시니어의 사회적 참여를 위한 서비스 제안 : ‘워크넷’ UI 애플리케이션 중심으로

HeeJin Park,SeungIn Kim 한국서비스디자인학회 2018 한국서비스디자인학회 학술대회자료집 Vol.2018 No.2

ANALYSIS OF SNS ACTIVITY AS LEISURE CONSUMPTION - FOCUSED ON THE SNS MARKET ACTIVITY OF WOMEN CONSUMERS OF THE TWENTIES TO THIRTIES

Heejin Park,Sunguk Choi,Heeju Chae 글로벌지식마케팅경영학회 2018 Global Marketing Conference Vol.2018 No.07

As the usage of smartphones increased rapidly due to the popularization of smart phones, it appears that the average daily usage time of Korean people was 3 hours and 39 minutes, and it was analyzed that the twenties uses 4 hours 41 minutes longer than the average (Jung, 2015). It, also, was found that users mainly use smartphones for receiving information retrieval, social network sites (SNS) activities, listening to music, watching games, and watching videos. In consequence, various contents suitable for smartphones are increasing rapidly. In particular, the number of users who are engaged in SNS activities through smartphones is rapidly increasing and its influence is gradually getting bigger. (Park & Lee, 2012). SNS activities provide content that gives entertainment in a short time and at the same time make consumption regardless of time and space like in subways or cafes, and also stimulate users through visual elements. The content that can be enjoyed in 10 to 15 minutes like snacks, which are easily eaten regardless of time and space, is called 'snack culture'. (Ko, 2015) According to Cheil Worldwide, 2000 media outlets for men and women aged between 13 and 59 living in major cities across the country, the phenomenon of easily consuming short videos, web cartoons, and web novels appeared noticeably. As a result of investigating the main purposes of smartphones, the use of relatively short contents such as SNS has increased (Bae, 2015). SNS provides users with simple contents similar to snacks, and users tend to use SNS as a leisure activity by using these services in 'leisure time' which is the time of their spare time. In this way, as the number of SNS steadily increased, SNS activity has also naturally increased. Consequently, as the SNS market has rocketed among various activities, the e-commerce using it is become popular. This type of consumption activity is called leisure spending (Cho & Do, 2010). Thus, it is necessary to analyze whether consumers view SNS activities as part of their leisure life. Although there are a lot of active consumption activities happening in consequence of using SNS after the spread of smartphones, there is very little research done on the relationship between SNS activity and the leisure life. This study, therefore, intends to conduct in-depth interviews on twenty women in their twenties and thirties who are actively engaged in consumption activities in the SNS market, on the issue of whether they acknowledge SNS activities and consumption behavior in the SNS market as recreational activities. The purposes of this study are as follows: first, to find out the meaning to SNS activities as a leisure activity to female consumers of the twenties and the thirties; second, to explore the approaching process and motivation of leisure life extending to leisure spending; third, to examine the relation between experience of commitment and leisure satisfaction through previous research and in-depth interview In addition, this study is the cornerstone of research on SNS market which is becoming an issue as one new consumption trend and which recognizes consumption activity that happens in the market as leisure consumption in reference to leisure. It is considered to be utilized variously when establishing marketing strategy of fashion companies, which will use image consumption based SNS later.

What Determines Company Stock in Defined Contribution Plans?

Heejin Park 한국인터넷전자상거래학회 2017 인터넷전자상거래연구 Vol.17 No.2

This study examines whether firms’ decisions to offer company stock in defined contribution plans are explained by corporate governance. There is a positive relation between the G-index and company stock in DC plans. By using both Form 5500 and the 11-K, there is also a positive relation between firms filing the 11-K and interest burden. Firms that issue new shares for the plan rather than purchasing existing shares from the open market are required to file the 11-K with SEC. These findings suggest that while firms’ decisions for inclusion of company stock in DC plans are motivated by the managers’ desire to increase managerial power, the decisions of how to finance employer contributions to retirement plans are affected by a cash saving motive.

EFFECT OF COGNITIVE AGE ON BODY CATHEXIS, CLOTHING BENEFIT, AND PURCHASE BEHAVIOR: A CROSS-CULTURAL COMPARISON BETWEEN KOREAN AND AMERICAN WOMEN IN THEIR 40S AND 50S

Heejin An,Minjung Park,In-Seong Lee 글로벌지식마케팅경영학회 2015 Global Fashion Management Conference Vol.2015 No.06

Generation X and baby boomers represent a significant group that are willing to spend. According to the American Express Open Forum (2013), baby boomers in America between the age 49 and 65 are more in favor of spending than any other consumer group. The Hyundai Research Institute (2015) stated that the market size for baby boomers will increase over 18% annually in Korea. Equally important is generation X, because this group is also reaching a high-earning stage of their lives (Luxury Daily, 2011). Further, they are predicted to take the place of baby boomers as a cash cow for marketers (American Express Open Forum, 2014).This lucrative demographic of baby boomers and generation X is a potential gold mine. Despite the fact that these groups are showing such interest in spending, brands and retailers are not giving them the same amount of attention. While more middle-aged women want to dress more youthfully, retailers and brands are not evolving their products at the same pace (USA Today, 2008). They are finding it difficult to find a solution to meet the needs of this aging but youthful group (USA Today, 2008). Brands such as Chico’s and Ann Taylor are not providing the styles that the women want, so boomers turn to younger brands such as Abercrombie & Fitch, H&M, and Forever 21 (Forbes, 2008). But the younger brands are not satiating their needs, either (Forbes, 2008). While the boomers and generation X are harnessing fashion economic control, the players in the market are lagging behind. To understand what the market must do to meet the apparel needs of baby boomers and generation X, it is pivotal to delve into how they feel about their age and how it affects the factors that influence their purchasing. According to Schiffman and Sherman (1991), aging is more of a state of mind than a physical state. Understanding older consumers through cognitive age (self-perceived age) has been done by many researchers (Sudbury & Simcock, 2009; Szmigin & Carrigan, 2012). Cognitive age indicates how older people view themselves in the context of aging. Barak and Schiffman (1981) stated that elderly respondents identified themselves as a younger age group when they were asked about their age-related feelings and actions. Equally important is understanding how cognitive age affects the physical self, which in this study, is body cathexis. Body cathexis, according to Labat and DeLong (1990), is “the evaluative dimension of body image and is defined as a positive and negative feeling towards one’s body.” While women may feel younger than they actually are, the body is inevitably aging. As Jang and Yoo (2011) reported after studying Korean women in their 40s and 50s, the correlation between cognitive ages and ideal body images were significant, and the younger they feel, the younger body images they desired. In addition, the physical self highly influences a person’s choice of clothing and how they perceive clothing in general (Kwon & Parham, 1994). When clothing is used in a positive manner, it can boost one’s self-confidence (Alexander, Connell, & Presly, 2005). It is also thought to be an extension of the physical self (Horn & Gurel, 1981). By understanding what middle-aged women seek when buying clothes, we can assume how satisfied they are about their body. Thus, the clothing benefits items and purchasing behavior of middle-aged women would most likely reflect the function of their clothing and how they perceive themselves.

Performance evaluation and economic feasibility of a PAFC-based multi-energy hub system in South Korea

Heejin Park(박희진),Jaeseung Lee(이재승),Hyunchul Ju(주현철) 한국가스학회 2022 한국가스학회 학술대회논문집 Vol.2022 No.5