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Methodological Consideration for Estimating Growing Stock of Young Forests based on Early Growth Characteristics of Standing Trees in Korea (우리나라 입목의 초기 생장 특성에 따른 유령림의 임목축적 산출방안 고찰)

  • Moon, Ga Hyun;Moon, Na Hyun;Yim, Jong Su;Kang, Jin Taek
    • Journal of Korean Society of Forest Science
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    • v.109 no.3
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    • pp.300-312
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    • 2020
  • The growing stocks of young forests that are less than10 years of age have been excluded from the Korean forest resource statistics, despite the existence of standing trees; however, sustainable forest management and carbon removals in the forestry section require complete information regarding forest resources. This study developed a method to estimate the growing stocks for young forests from National Forest Inventory (NFI) data. After reviewing previous research on growth characteristics for young forests, we conducted stem analysis of major species, and examined stand characteristics by site index, based on real yield tables. Our statistical analysis results showed that there were few standing trees with diameters at breast height (DBH) above 6 cm in young stands, and that it would have taken 12 years, on average, to reach 6 cm DBH. This suggests that mean tree height by diameter should be assessed at the root, in order to assess growing stocks for young stands through the NFI. Moreover, the database system should be improved to differentiate tree species, since diverse shrubs, including trees, have been surveyed.

A Study on How Well-Being Influences Consumer Behavior and Restaurant Choice (외식 소비자의 웰빙 수준과 웰빙 태도가 레스토랑의 선택 속성에 미치는 영향)

  • Son, Young-Jin;Hong, Ki-Woon
    • Culinary science and hospitality research
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    • v.15 no.1
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    • pp.209-224
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    • 2009
  • The objective of this study is to find out how well-being influences consumer behavior of dining-out. Based on this objective, this study covers plans for improving marketing strategies, which contributes to menu development and purchase behavior of consumers. This study consists of two parts : a research based on the review of the literature and empirical study methods. The finding of the study would also be valuable for the development of management of advertising strategies to be implemented in the foodservice industry. Based on the survey statistics, Program SPSS 12.0 and Amos 5.0 were used in order to look into a casual relationship among group units. The findings of the demonstration analysis are as follows. Most of previous research regarding well-being in local study is psychological well-being dealt with individual health and psychological satisfaction. On the other hand, social well-being is likely to focus on public relation rather than private concerns. The fact that the term 'well-being' have not been definitely defined yet was a problem in research. Also, well-being should not be recognized as a temporary trend but as a general trend. Therefore, it is necessary to understand consumer behavior which is changeable as the circumstance of the foodservice industry changes.

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The Effect of Self-esteem, Academic Achievement and Family Functioning of Adolescents on Hope (일도시 청소년의 자아존중감, 학업성취수준, 가족기능이 희망에 미치는 영향)

  • Lee Jong Eun;Park Sun Nam;Park Ho Ran
    • Child Health Nursing Research
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    • v.7 no.1
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    • pp.74-84
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    • 2001
  • This study is the descriptive survey for the purpose of providing the basic data that establishes the strategy to promote adolescent's hope by the examining of self-esteem, academic achievement, family functioning and hope of adolescents and the investigating of the factors influencing the hope in adolescents. The subjects for this study were 456 students of the first and second year of man's senior high school that located in Seoul. The data were gathered from 16th to 31st of the October 2000. For the survey tool, it was used that the Family Assessment Device(FAD) of Epstein, Baldwin & Bishop(1983), the Self-Esteem Inventory(SEI) of Coopersmith(1975), the class record order and Hinds & Gatusso(1991)'s Hopefulness Scale for Adolescents(HSA). The collected data was analyzed by statistics methods as the descriptive and frequency analysis, t-test, ANOVA, Pearson and Spearman correlation coefficients and Stepwise multiple regression of SAS program. The results of this study were following : 1. The mean score of self-esteem of young people was 51.06±6.83 and the mean grade was 2.04. The high academic achievement was 29.2%, middle grade was 52.7%, and low grade was 18.1%. The mean score of the family functioning was 38.30±6.98 and the mean grade was 2.25. The mean score of hope was 84.26±16.45 and the mean grade was 3.51. 2. The hope in adolescents was significantly different according to their father's school career. The mean score of the group that the father's school career was below junior high school was 77.32. That was significantly lower than the mean score 84.59 of the group that the father's school career was above college and the mean score 85.18 of senior high school group(F=4.04, P= 0.0183). 3. The self-esteem was represented the positive correlation with family functioning(r=0.43) and the all of the 4 subscales(r=0.31, 0.41, 0.39, 0.30). And, it was highly ranked as much as family functioning was good. The academic achievement was represented the positive correlation with self-esteem(r= 0.15). Also, the positive correlation was shown between the affective responsiveness, role recognition and emotional support as the subscales of family functioning and academic achievement(r=0.11, 0.12). And so, academic achievement was high as much as self-esteem was high and affective responsiveness and role recognition and emotional support were good. The hope was represented positive correlation with self-esteem and academic achievement(r=0.42, 0.26), and with the whole of family functioning(r=0.15) and the 4 subscales(r=0.13, 0.16, 0.11, 0.13). So, hope was high as much as self-esteem was high, academic achievement was high and family functioning was good. 4. The influencing factors on the hope of adolescents were self-esteem(17.63%), academic achievement(3.41%), father's school career(0.84%). These factors made it possible to explain 21.88% of hope.

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The Potential Impacts of Recent Developments in Timber Certification Schemes on the Korean Forest Products Trade (우리 나라 임산물무역(林産物貿易)에 대한 목재인증제(木材認證制)의 잠재적(潛在的) 영향(影響))

  • Joo, Rin Won;Lee, Seong Youn
    • Journal of Korean Society of Forest Science
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    • v.89 no.3
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    • pp.368-377
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    • 2000
  • This study was conducted to examine the recent developments in timber certification schemes at global level such as FSC certification and ISO 14001 system and to analyze their potential impacts on the Korean forest products trade. Data and information on standards and procedure of timber certification and certified forest lands were collected from relevant papers, statistics and reports published by regional and international organizations. In order to analyze the impacts on the Korean forest products trade, questionnaire survey to the affected parties was conducted on acknowledge of key words relating to environment and trade and on the additional amount of willingness to pay for a labeled timber from environmentally sound and sustainably managed forests. Quantities of certified timbers supplied would continue to increase due to lots of timber certification schemes developed and implemented at national, regional and global levels and growing interests in certification from many countries. Demand for certified timbers, however, is far from clear at this stage. The deciding factor would be consumer reaction to the certified products. In the short run, the timber certification would have a little impacts on forest products imports into Korean markets since domestic purchasers do not have much interests in environment related trade measures and their willingness to pay price premiums for certified timbers is not high. However, it could be expected that timber certification has negative impacts on exports of forest products, such as flooring and plywood, to developed European markets where timber certification is used as a trade barrier.

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Health-Promoting Behaviors of the Women Workers at the Manufacturing Industry -Based on the Pender's Health Promotion Model- (제조업 여성 근로자의 건강증진행위 관련 요인 분석 -Pender의 건강증진모형 적용-)

  • Yun, Soon Nyoung;Kim, Jeong Hee
    • Korean Journal of Occupational Health Nursing
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    • v.8 no.2
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    • pp.130-140
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    • 1999
  • The purpose of this study was to identify health promoting behaviors(HPBs) and the related determinants affecting to women workers health based on the New Health Promotion Model by Pender(1996). Data were collected by self-reported questionnaires from 208 women workers at the 8 electronic manufacturing factories under the permission of data collection and cooperation with health managers in the factories during the period from September to October 1999. For data analysis. Descriptive statistics, ANOVA, Pearson's correlation and Stepwise multiple regression with SPSS/PC+7.5 version were used. The results were as follows : 1. The average score for the HPBs, consisted of 6 subdimensions was 2.05. The highest mean score was 2.29 in 'Spiritual growth' and the lowest one was 1.66 in 'Physical activity'. 2. No significant difference between general charateristics and HPBs were found. 3. HPBs were positively related to 'Prior related behavior'(r=0.369, p<0.1), 'Perceived self-efficacy'(r=0.340, p<.01), 'Activity-related affect'(r=0.252, p<.01). 'Social support'(r=0.350, p<.01). 'Commitment to a plan action'(r=0.374, p<.01). There was no significant correlation between perceived health status, perceived barriers to action and HPBs. 4. The most important variable in HPBs was 'Commitment to a plan action'. It was explained 14.0% out of the total variance of HPBs. 'Commitment to a plan action', 'Prior related behavior', 'Social support', 'Self-efficacy' and 'Perceived barriers to action' explained 23.0%. According to the results of this study, the suggestions were as follows: 1. It is necessary to develop program for improving the physical activity and health responsibility of women workers at the manufacturing industry. 2. To facilitate and maintain HPBs of women workers, nurses may enhance and plan mutually interactive active HPBs with women workers. 3. Social support at the level of individual workers, supervisors, and the organization is required in order to conduct health promotion program at the factories. 4. Significantly related variables to HIPBs should be identified the direct and indirect paths among them further more.

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Influence of Self-esteem and Consumer Socialization Agents on Rational Consumption Behavior of Middle School Students (중학생의 자아존중감과 소비자사회화 영향요인이 합리적 소비행동에 미치는 영향)

  • Lee, Seung Jin;Yu, Nan Sook
    • Journal of Korean Home Economics Education Association
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    • v.31 no.4
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    • pp.115-128
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    • 2019
  • The purpose of this study was to examine the influence of self-esteem and consumer socialization agents on rational consumption patterns of middle school students. Using a convenient sampling method, the data were collected from middle schools in Seoul, Gyeonggi, Chungcheong, Jeonnam, and Gwangju and a total of 412 copies were analyzed. The descriptive statistics, Chronbach's α, t-test, and stepwise regression analysis were performed using the SPSS and the results were as follows. First, rational consumption behavior was 3.18 and self-esteem was 3.54 on a 5-Likert scale. As for consumer socialization agents, parents was the highest at 3.13, followed by school 2.83, mass media 2.78 and peers 2.73. Second, the average comparison of rational consumption behavior and consumer socialization agents by gender showed that there was no gender difference in rational consumption behavior, but in the case of consumer socialization, girls were higher than boys. Third, examining the influence of self-esteem and consumer socialization agents on rational consumption behavior, it was found that the amount of money, mass media, and peers showed an negative effects on rational consumption behavior, while self-esteem and parents showed positive effects on rational consumption behavior. In this regard, middle school students need to have more self-esteem and guide their peers so that their influence can be positive in the home economics class in order to become consumers with rational consumption behavior.

Analyses of Consumer Preferences and Perceptions Regarding Activation of Yacht Tourism Industry (요트관광산업의 활성화를 위한 소비자 선호도 및 인식도 조사)

  • Cho, Woo-Jeong
    • Journal of Navigation and Port Research
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    • v.36 no.5
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    • pp.401-407
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    • 2012
  • The purpose of this study was to examine the preferences to yacht tourism and perceptions to importance of yacht tourism industry's activation strategies from consumers perspectives. In order to such a purpose, this study employed survey methodology with a total of 300 visitors to yacht facility and beach located in B metropolitan city. With 265 usable questionnaires, data collected were analyzed using descriptive statistics such as frequency, percentage, mean and standard deviation. Accordingly, following findings were derived from current study. First, 32% of participants had yacht tourism experiences and more than 64% of them had willing to purchase yacht tourism products in the future, which indicates optimistic increases in yacht tourism demand. In addition, amount of willingness to pay for yacht tourism was less than 100 thousand Won per day. Second, the most preferred product was a yacht training and experience program, and preferred time for yacht tourism was weekend and or vacation with the period of one day or one night and two days. The main motivation was to spend leisure time and enjoyment with accompanying persons of family or friend members. Third, consumers' restriction factors included high expenditures, time consuming and lack of various yacht tourism products but their selection attributes included low expenditures, associated tourism products and quality of yacht tourism products. Finally, the most important activation strategies included the development of yacht tourism products, building yacht tourism conditions and establishing marketing strategies, but the least important activation strategies from consumers views included policies, experts and facilities.

A Study on International Engineering Market Focusing on Engineering/Consulting Delivery System (엔지니어링 해외진출 활성화를 위한 유망국가 분석 - 시장 현황 및 입낙찰 절차를 중심으로 -)

  • Kim, Sang-Bum;Kwak, Hyun-Jun
    • Korean Journal of Construction Engineering and Management
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    • v.14 no.2
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    • pp.171-183
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    • 2013
  • Domestric Construction & Engineering market has been long in recession due to the global economic crisis. Domestic construction industries consequently looks at overseas construction markets where relatively more construction projects are constantly required. In order to provide meaningful information for Korean engineering companies to keep the pace with the changes in the construction industry, various construction related date and statistics are analyzed. In addition, previous research from the related organizations and construction engineering companies are closely reviewed. Investigation of preliminary data and research have been conducted to draw remedies for their overseas expansion. Moreover, it is attempted to classify foreign markets as the Asia, Africa and etc. (Europe, North America/the Pacific and Latin America) to provide the list of first target countries and its regional market information focusing on their bidding system. This study had tried to show comparative analysis of different bidding procedures between Korea and the selected countries to suggest measures of improvements for the domestic bidding system. Finally, this study suggested policy recommendations to meet the requirement of bid qualification to advance the global market that was suggested with validated clustering bidding data.

Predicting Default of Construction Companies Using Bayesian Probabilistic Approach (베이지안 확률적 접근법을 이용한 건설업체 부도 예측에 관한 연구)

  • Hong, Sungmoon;Hwang, Jaeyeon;Kwon, Taewhan;Kim, Juhyung;Kim, Jaejun
    • Korean Journal of Construction Engineering and Management
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    • v.17 no.5
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    • pp.13-21
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    • 2016
  • Insolvency of construction companies that play the role of main contractors can lead to clients' losses due to non-fulfillment of construction contracts, and it can have negative effects on the financial soundness of construction companies and suppliers. The construction industry has the cash flow financial characteristic of receiving a project and getting payment based on the progress of the construction. As such, insolvency during project progress can lead to financial losses, which is why the prediction of construction companies is so important. The prediction of insolvency of Korean construction companies are often made through the KMV model from the KMV (Kealhofer McQuown and Vasicek) Company developed in the U.S. during the early 90s, but this model is insufficient in predicting construction companies because it was developed based on credit risk assessment of general companies and banks. In addition, the predictive performance of KMV value's insolvency probability is continuously being questioned due to lack of number of analyzed companies and data. Therefore, in order to resolve such issues, the Bayesian Probabilistic Approach is to be combined with the existing insolvency predictive probability model. This is because if the Prior Probability of Bayesian statistics can be appropriately predicted, reliable Posterior Probability can be predicted through ensured conditionality on the evidence despite the lack of data. Thus, this study is to measure the Expected Default Frequency (EDF) by utilizing the Bayesian Probabilistic Approach with the existing insolvency predictive probability model and predict the accuracy by comparing the result with the EDF of the existing model.

Central Technology Deriving for the Patents of Medical Device using Social Network Analysis (특허 네트워크 분석을 활용한 의료기기 분야에서의 핵심기술 도출)

  • Chun, Jae-Heon;Lee, Chang-Seop;Lee, Suk-Jun
    • Management & Information Systems Review
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    • v.35 no.2
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    • pp.221-254
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    • 2016
  • With increasing interest of health due to population aging, medical device industry is highlighted as a promising industry. However, Korea medical device industry is not enough market competitiveness compared to global company due to a narrow domestic market and a small company structure. In order to retain the national competitiveness, it is necessary that we have to derive a central technology and its trend. This study has predicted a central technology for medical device industrial using patent network analysis. The central technology is defined as a key technology that is connected to most other technologies and that significantly affects them. For the empirical study, we conducted social network analysis using covariance and correlation coefficient between IPC codes extracted from medical device patents, introduced by Jun(2012). A social network is a social structure of diverse items as well as of human beings. In this study, we set each medical device as a node in an SNA and analyze the Degree values between them. Also, Korea health industrial statistics system are utilized for verification of selected central technology. As a result, we found that the central technology is located on the medical device items, which are listed higher the amount of production. The central technology selected through the proposed methodology will provide a inspiration for establishment of R&D policy.

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