미성년 자녀가 있는 부부의 삶의 만족도에 영향을 미치는 요인: 여가시간을 중심으로

송유진 통계청 2017 통계연구 Vol.22 No.4

This study examines how much time Korean parents with 19 year old and younger children spend time in doing various leisure activities alone, with family and with others, and whether time spent in these activities influences on their life satisfaction. Based on 2014 Time Use Survey data, results of linear regression analysis are as follows. First, household income and subjective evaluation of health are positively related with personal life satisfaction. Second, Individual’s perception of lack of time is negatively related with personal life satisfaction. Third, unemployed mothers have longest leisure time followed by fathers and employed mothers. Individuals spend longest time in media activity (i.e., watching TV and internet surfing), usually by themselves, which exerts a negative influence on the father’s life satisfaction. Fourth, Although leisure time does not exert much influence on mothers’ life satisfaction regardless of employment status, leisure time with family tends to have a positive influence with their life satisfaction. Further study should be conducted to understand whose preference is reflected to the leisure activities, quality of relation with those who spend time with and quality of leisure activities. 이 연구는 2014년 생활시간조사 자료를 활용하여 19세 이하 자녀가 있는 기혼 부부를 대상으로 삶의 만족도에 영향을 미치는 요인을 살펴보았다. 특히 여가시간에 누구와 어떤 활동을 하는 것이 삶의 만족도에 어떤 영향을 미치는지에 대하여 초점을 맞추었다. 가족주기의 차이를 고려하여 분석대상은 10세 미만 자녀가 있는 부부, 10세 이상 19세 이하 자녀가 있는 부부로 구분하였고 여성은 취업 여부에 따라 구분하였다. 비취업 여성의 여가시간이 가장 길고 아버지, 취업여성 순서이고, 여가시간에 하는 활동 중 TV 시청과 인터넷 활용으로 대표되는 미디어 활용이 가장 높은 비중을 차지한다. 성별, 여성의 취업여부에 관계없이 가구소득과 주관적 건강상태는 삶의 만족도에 긍정적인 영향을, 시간부족은 부정적인 영향을 미치는 것으로 나타났다. 아버지들의 경우에는 혼자 미디어 활용을 하거나 혼자 여가시간을 보내는 것이 삶의 만족도에 부정적인 영향을 나타낸 반면, 취업여성은 여가시간이 그다지 크게 유의미한 영향을 미치지 않았으나 가족과 함께 하는 시간이 긍정적인 영향을 미치는 것으로 나타났다. 여가시간의 효과가 생각보다 크지 않은 이유는 여가시간 자체가 짧고 활동이 제한적이기 때문인 것으로 생각된다. 추후 어떤 맥락에서 어떤 관계의 사람들과 시간을 함께 하는지와 같은 질적인 측면에 대한 정보가 보완된다면 보다 풍부한 해석이 가능할 것으로 생각된다.

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송유진 한국보육학회 2017 한국보육학회 학술대회자료집 Vol.2017 No.-

청주시 소비자의 쿠폰에 대한 태도 유형화에 관한 연구

송유진,유현정 한국소비자정책교육학회 2006 소비자정책교육연구 Vol.2 No.1

As the instances of using coupons as a marketing tool have been grown, the number of consumers using coupon is also on the increase. As a coupon is believed to be an efficient means to bring the maximum satisfaction and marketing effect with the minimum cost in both consumers and corporations, the rapid development is requested in qualitative aspect beyond the quantitative expansion. In fact, a coupon is not used only by an economic reason. The use of a coupon itself is recognized as an interesting amusement. In this regard, this study categorized the consumers’ attitude regarding coupon use and analyzed the related factors. The results were as follows: 1. The consumers’ attitude regarding coupon use was classified as three types such as ① negative attitude, ② amusement-like attitude, and ③ economic attitude. 2. As a result of implementing the cluster analysis in accordance with the consumers’ attitude regarding coupon use, the consumer group was divided into three types such as ① heavy user group, ② group using coupon for amusement, and ③ group using for economic purpose. 3. The heavy user group showed the highest degree of coupon loyalty. In addition, it also showed the highest degree of negative attitude about coupon.

안전한 클라우드 비즈니스를 위한 접근권한 분산관리

송유진,도정민,Song, You-Jin,Do, Jeong-Min 한국정보처리학회 2011 정보처리학회논문지 C : 정보통신,정보보안 Vol.18 No.6

최근 비즈니스 환경에서 공유되는 데이터의 기밀성과 유연성있는(fine-grained) 접근제어를 보장하기 위해서 KP-ABE(Key Policy-Attribute Based Encryption)와 PRE(Proxy Re-Encryption)를 활용한 시스템 모델이 제안되었다. 그러나 기존 방식은 클라우드 서버에 집중된 복호권한 때문에 데이터 기밀성을 침해하게 된다. 또한, 접근권한 관리에 대한 개념을 고려하지 않았으므로 악의적인 내부사용자의 공격에 취약하다. 이러한 문제를 해결하기 위해서 기존방식의 프로토콜 모델에서 권한 관리자 그룹을 두어 클라우드 서버에 저장되는 데이터 파일(data file)을 분산 저장하여 데이터 기밀성을 보장하고 AONT 기반의 XOR 임계치 비밀분산을 활용하여 접근권한 관리 모델을 구성하였다. 또한 XOR 쉐어를 활용하여 권한의 가중치를 부여할 수 있는 방법을 구체화했다. 4장에서 기존방식과 제안방식과의 비교 분석과 기능적 활용에 대해서 서술하여 제안방식의 차별화를 부각시켰다. To ensure data confidentiality and fine-grained access control in business environment, system model using KP-ABE(Key Policy-Attribute Based Encryption) and PRE(Proxy Re-Encryption) has been proposed recently. However, in previous study, data confidentiality has been effected by decryption right concentrated on cloud server. Also, Yu's work does not consider a access privilege management, so existing work become dangerous to collusion attack between malicious user and cloud server. To resolve this problem, we propose secure system model against collusion attack through dividing data file into header which is sent to privilege manager group and body which is sent to cloud server. And we construct the model of access privilege management using AONT based XOR threshold Secret Sharing, In addition, our scheme enable to grant weight for access privilege using XOR Share. In chapter 4, we differentiate existing scheme and proposed scheme.

Management Method of Planted Plants and Immigration Plants through Monitoring on Wildflower Garden - Case Study on Seoul Samgaksan Elementary School -

송유진,진혜영,이정희,전윤창,남춘희 인간식물환경학회 2017 인간식물환경학회지 Vol.20 No.3

This study was conducted to analyze the relationship between planted plants and immigration plants by monitoring the wildflower garden constructed at Seoul Samgaksan Elementary School. The results of this study are as follows: First, plants planted in the garden 32 taxa, except for weakened only 1 taxa (Clematis patens), the remaining plants maintained or increased their populations. Among maintained Plants, that did not volume growth were 6 taxa and volume growth on the spot were 5 taxa. 15 taxa were spread around the planting area and 5 taxa spread sporadically to unpredictable areas other than the planting area. Although most of the planted plants show good growth, no special management is required, but Lonicera japonica needs the density management that cuts off the stem in the early spring and 5 sporadically spreading taxa, the planting intent of garden is attenuated, so remove the root when new leaves come out in spring. Second, the total number of plants transferred after 2 years of wildflower garden constructed were 83 taxa total, which is 2.6 times that of planted plants. The seed disseminule form was analyzed as 52% barochory, 27% anemochory&hydrochory, 16% autochory and 5% zoochory. Also about 43% of the transferred plants were estimated to been imported from soil seed bank. Third, we classified immigration plants into largely native plants and naturalized plants. The native plants were transferred to more than naturalized plants: 65 native plants, 1 cultivated plants and 17 (22%) naturalized plants. The results of the monitoring of the rooftop garden ‘Choroktteul’ in Seoul City Hall showed that there were differences in the type and number of the immigration plants depending on the distance and quality of the surrounding greenery. Fourth, the management method of immigration plants is divided into three categories: elimination, transplantation, and utilization. The 39 taxa were selected for the elimination: Invasive alien plants among naturalized plants, fast spreading plants, plants that expand sideways with rhizomes, and plants that interfere with the growth of planted plants: grow to over 1 meter in height and climbing plant. The elimination period should be dry, clear, windy day, remove the root without any residue. The transplanted plants are 18 taxa, tree, plants not suitable for habitat, and in elementary school textbooks. It is a group of 26 taxa which are used in the garden: for landscape that plants have ornamental values (flowers, leaves, and autumn colors etc.) but do not attenuate the intent of the garden, and for groundcover that plants have low plant height and fast spread. It is also possible to prevent immigration plants when you are mulching or planting plants densely populated areas when making a garden.

어플리케이션의 음성녹음 파일에 대한 위변조 탐지 연구

송유진,김기범 한국디지털포렌식학회 2022 디지털 포렌식 연구 Vol.16 No.3

With the development of digital technology, it is becoming easier to falsify voice recording files with smartphones or PCs. A growing number of cases are claiming that voice recordings have been falsified in court. In order for voice recording files to have evidence capability, it is important to prove identity and integrity. Therefore, in this paper, we analyzed whether the file generated by the voice recording application was falsified or not. Seven applications were selected in the order of download from the Google Play Store, and partial deletion and overwriting were experimented, and edited in the application and on the PC, respectively. As a result, file format analysis could determine whether MyRecorder was edited in amr, SuperRecorder was edited in all formats, Voice Recorder was edited m4a and 3gp, and Sound Recorder Plus was edited in aac, but Easy Voice Recorder, Recorder, and Voice Recorder could not determine whether to edit. Research on the detection of forgery and alteration of voice recording files could contribute to resolving legal disputes over voice recording.

타임 패트리넷 기반의 분할 알고리즘을 이용한 스케쥴러 설계

송유진,이종근 한국시뮬레이션학회 2003 한국시뮬레이션학회 논문지 Vol.12 No.2

In this study, we propose a scheduling analysis method of the Flexible management system using the transitive matrix. The Scheduling problem is a combination-optimization problem basically, and a complexity is increased exponentially for a size of the problem. To reduce an increase of a complexity, we define that the basic unit of concurrency (short BUC) is a set of control flows based on behavioral properties in the net. And we propose an algorithm to divide original system into some BUC. To sum up, we divide a petri net model of the Flexible management system Into the basic unit of concurrency through the division algorithm using the transitive matrix. Then we apply it to the division-scheduling algorithm to find an efficient scheduling. Finally, we verify its efficiency with an example.

추이적 행렬을 이용한 패트리 넷 모델의 분석방법에 대한 연구

송유진,이종근 한국시뮬레이션학회 2001 한국시뮬레이션학회 논문지 Vol.10 No.1

We propose a divide-conquer method of Petri nets under the condition of one-boundedness for all the Petri nets. We introduce the P-invariant transitive matrix of Petri nets and relationship between them. The feature of the P-invariant transitive matrix is that each element stands for the transitive relationship between input place and output place through the firing of the enable transition.

Gender and Attitude to Fair Trade: Examination of the Mediation Effect by Consumer Social Mindedness

송유진 한국마케팅과학회 2011 마케팅과학연구 Vol.21 No.1

公平交易是一种可选择商业模式,其特点于“生产商和买家之间的直接交易,对生产商来说更价格相对更高更公平,是买家和生产者之间的长期保证,依赖于信用体系,更高的劳动标准,而且更环保(Golding, 2010)。它开始是为了缩小贫富差距(主要是北半球的消费者与南半球的小规模农户和劳动者之间),因为在传统市场体系中,穷人没法提高生活质量。据美国Transfair报道,传统的咖啡豆农民卖出3美元拿铁只能获利2美分(公平交易联盟, 2010)。其基本思路是,生产者应至少赚够生产成本,并且即使价格高于市场价格,买家也应支付。没有中间商就确保了这个“高于正常市场价格”,也就是所谓的公平价格,不会很高。例如,根据公平交易标签组织的标准,传统公平交易保证咖啡农民每公斤咖啡豆最高可赚取的价格的百分之十(公平交易联盟, 2010). 最近,随着全球销量和消费者对公平交易的认识的快速上升,理解的消费者购买公平交易产品变得更加重要。以往研究主要调查了欧洲和北美消费者对公平交易产品的购买动机,以及他们的人口特征。有趣的是,消费者人口统计变量,如性别,对公平交易产品消费的影响好坏参半。一些研究表明,女性消费者对公平交易产品更感兴趣,并且这点和在其他地方研究中得出的有关道德消费(e.g., Kwong, Yau, Lee, Sin, and Tse 2003) 和商业环境中的道德抉择 (e.g., Bampton and Maclagan 2009)基本一致。然而,其他研究指出,在公平交易无性别差异(Doran 2009)。对于性别影响好坏参半的其中一个解释也许是消费者性别和性别认同之间的差异。通常情况下,社会科学中,sex是指生物学上男性和女性的区别,gender则更多与心理范畴有关((Fischer and Arnold, 1994)。普遍认为,消费研究采用性别认同作为变量比默认性别更容易解释(Fischer and Arnold, 1994)。具体实施方法之一是使用消费者男性/女性的价值取向,其与个人成长所处的文化有关,可能与生物性别一致但也可能不然(Hofstede, 2001)。虽然没有直接聚焦于女性交易,Doran研究的消费者的价值观和他们对公平交易消费的影响表明,公平交易产品的消费者往往表现为更多关注他人利益,也就是,公平交易的农民。因此,建议更在乎他人利益的女性消费者,更加关注遥远国家贫困农民的利益。因此,提出假设1如下:假设1a:女性消费者在公平交易中更积极。假设1b:个人价值取向上偏女性化的男性消费者在公平交易中会(否)更积极。如前所述,一些公平交易的研究表明,消费者人口统计数据的影响好坏参半。对于这种差异,有人认为,和其他更主要的变量相比,消费者和非消费者的人口统计学差异显得微不足道(Doran, 2009, 2010)。Doran(2010)指出,价值普遍性与公平交易消费有关。另一项研究也表明,道德消费水平影响消费者对公平交易的态度(Kim et al., 2009)。这些研究说明,一些高阶变量会影响消费者的社会责任行为,比如对公平交易更加积极的态度。此外,另一假设认为,消费者的社会意识可能会调解消费者性别取向和公平交易态度之间的关系。这个假设的原理基于男性化/女性化的价值取向的范围比较广泛,它还包括许多其他的概念,如性别平等,这就本研究课题没有直接关系(Minkov and Hofstede, 2011)。因此,与其说消费者的男性化/女性化价值取向直接影响消费态度,不如说起有更多类型的特定值。因此,提出如下假设:假设2:消费者社会意识和消费者公平交易态度正相关。假设3:个人价值取向上偏女性 ... Currently many research reported that more and more consumers consider ethical factors as one of the more critical cues in their decision making (Bray, Johns, and Kilburn 2011). This study is interested in one particular area of ethical consumption, purchasing fair trade products. Fair trade is an alternative business model which is characterized by “direct trade between producers and buyers, relatively higher and fair price for producers, long-term commitment between buyers and producers, reliance on credit system, higher labor standards, and upholding environmental concerns (Golding, 2010). It started as an effort to narrow the gap between the haves (mainly consumers of the northern hemisphere) and the have-nots (small scale farmers and laborers of the southern hemisphere) who have little chance of improving the quality of life in the conventional marketing system. According to Transfair USA, conventional coffee bean farmers receive only two cents from the sale of $3 latte (Fair Trade Federation, 2010). The basic idea is that producers should earn at least the cost of production and buyers should pay as much even though the price is higher than the market price. Having few middlemen ensures this higher-than-regular market price, which is called the fair price, not very high. For example, typically fair trade certified coffee farmers can earn ten cent premium on top of the per kilo price of coffee beans, according to Fairtrade Labeling Organization standards (Fair Trade Federation, 2010). As the global sales volume and consumers’ awareness of fair trade is increasing rapidly recently, understanding consumers who buy fair trade products gets more important. Previous research which mainly performed in Europe and North America has investigated consumers’ purchasing motivation of fair trade products, as well as their demographic characteristics. It is interesting that the effect of consumers’ demographic variables, such as gender on the consumption of fair trade products has been mixed. Some research suggested that female consumers were more interested in fair trade products in general and that was in line with the result from the research on other venues of ethical consumption (e.g., Kwong, Yau, Lee, Sin, and Tse 2003) and ethical decision making in business settings (e.g., Bampton and Maclagan, 2009). However, other studies pointed out that there were no gender differences in fair trade consumption (Doran, 2009). One possible explanation for the mixed results of gender effects might lie with the difference between sex and gender identity of consumers. Typically, in social sciences sex refers to biologically based distinction of male and female, and gender is more about the psychological aspects related to sex (Fischer and Arnold, 1994). It has been argued that gender identity has more explanatory power than sex and should be used in consumer research instead of the default sex as a variable (Fischer and Arnold, 1994). One way to operationalize gender is using consumers’ masculine/feminine value orientation, which individuals internalized growing up in their culture and might or might not be consistent with ones’ biological sex (Hofstede, 2001). While not directly deals with the focal topic of femininity, Doran’s study of consumer values and their influence on fair trade consumption indicated that consumers of fair trade products tend to exhibit higher concerns of the welfare of out-group members, that is, fair trade farmers. Thus, it is suggested that consumers with higher level of femininity, who care more about other people’s welfare, will be more interested in welfare of poor farmers in faraway countries. Thus, hypothesis 1 is proposed as below. H1a. Female consumers will show more positive attitude toward fair trade. H1b. Consumers who are more feminine (masculine) in their personal value orientation will show more (less) positive attitude toward fair trade. As mentioned earlier, several fair trad...

Effects of γ-Irradiation on Antioxidant and Antimicrobial Activities and Color of Ecklonia cava

송유진,김아람,김꽃봉우리,이소영,Jin Gyu Park,김재훈,최종일,이주운,변명우,안동현 한국식품과학회 2011 Food Science and Biotechnology Vol.20 No.3

Ecklonia cava (EC) was irradiated with γ-rays at doses of 3, 7, and 20 kGy. The extraction yields, total polyphenol content (TPC), DPPH radical scavenging activity, antimicrobial activity, and color of the EC extracts were assessed. The results showed that irradiation caused an increase in the extraction yields of ethanol and water. TPC was found to be significantly increased when EC powder was subjected to irradiation, followed by ethanol and water extraction. However, DPPH radical scavenging and antimicrobial activities were stable under all irradiation conditions. In the heat and pH stability tests, the DPPH radical scavenging activities of EC ethanol extracts were not influenced by irradiation. Irradiation caused an increase in the lightness and redness of EC extracts and decreased the yellowness. In conclusion, γ-irradiation increased the extraction yield and TPC and brightened the color, while maintaining the antioxidant and antimicrobial activities.