• Journal of Forest and Environmental Science
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• v.33 no.1
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• pp.74-77
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• 2017

The purpose of this study is to analyze the effect of thinning intensity on the growth of large diameter trees in Korean white pine (Pinus koraiensis S. et Z.) plantation. Eight thinning plots were analyzed by categorizing into heavy thinning, light thinning, no thinning (control) according to thinning intensity. As a result, average DBH increased more in heavy thinning plots than in light thinning or unthinned plots. The number of large trees (DBH>25 cm) were obviously shown the most in heavy thinning plots. It is considered that heavy thinning is needed for the production of the large diameter trees.

• Journal of East-West Nursing Research
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• v.22 no.1
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• pp.68-77
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• 2016

Purpose: This study was conducted to classify the subjective perception of college students on the role of parents and to identify the characteristics of each classified type. Methods: The Q methodology was used for this study interviewing 150 college student, 70 statements were derived as a result from interviews conducted among college students. Thirty seven final Q-statements were derived by categorizing the statements based on significant similarities. The Q-statements were sorted by 37 college students. The collected data was analyzed through PC QUANL. Results: The analyzed types resulted in 4 categories:"friend-like parents type," "stability-oriented parents type," "discipline and guidance parents type", and "personality nurturing parents type." Conclusion: The result of this study can be utilized for establishing a proper role and values of parenting. It can also contribute to designing an important educational material for parental education.

• Korean Journal of Child Studies
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• v.30 no.6
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• pp.361-373
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• 2009

Although juvenile delinquency has been continually decreasing, property and traffic crimes have been increasing. The age of delinquents or adolescent criminals are getting younger, and the number of female involved in delinquency or crimes has been increasing. The most frequently researched topic has been factors of causal effects on juvenile delinquency and development of counseling programs for the delinquents. Other studies have been investigating descriptive data, analyzing differences by sex, or categorizing delinquency behaviors by type, and suggesting political alternatives for restoration of juvenile delinquency. There have been several academic issues on the conceptual definition of delinquency, shift in research topics, and research methods. There have been further discussions on the imminent values of making relevant policies based on the results of multi-disciplinary research, developing the preventive and therapeutic programs and career counseling programs, and working with the experts from local communities.

• Journal of Information Technology Applications and Management
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• v.15 no.4
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• pp.205-220
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• 2008

Categorizing Korean IS practitioners into junior specialists, mid-level specialists, senior specialists, and generalists following the results of existing researches, this paper shows that Korean IS recruiters require their applicants to possess higher level of "product-orientation" than the level required to junior specialists near to the level required to mid-level specialists. Results show that Korean IS recruiters know the IS knowledge and skills requirements on Korean IS practitioners well, and that Korean IS recruiters respond to the needs of their companies agilely. Results also show that Korean universities fail to foster their students to meet the needs of industry.

• Journal of the Korean Society of Clothing and Textiles
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• v.11 no.3 s.25
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• pp.111-119
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• 1987

The main purposes of the study were to categorize the clothing items into product groups according to their product characteristics, and to find out the differences of consumer perception on clothing Product groups among different age and socioeconomic groups. A questionnaire about characteristics It?as constructed on the basis of Lipton, Darling, and Miracle's theories on product categorisations. The questionnaires were administered to female subjects in two age groups (20's and 40's) living in Seoul. Subjects were classified into 3 socioeconomic groups for the analysis. The Analysis of variance, post-hoc comparisons (Scheffe test and Tuckey test) were employed for the statistical inferences. The results were as follows ; Group I : none Group II : socks, undershirts, T-shirts (20's age group) Group III : blouse, sweater, blue jean, pajama, langerie, T-shirts (40's age group), skirt Group IV : jacket, skirt (high class of 40's age group) two-piece, half coat, long coat, Korean folk costume Group V : none Some of the clothing items were categorized into different product groups by different age and socioeconomic groups.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2010.07a
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• pp.32-35
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• 2010

This paper presents an efficient monitoring method of a network protocol for a downloadable conditional access system (DCAS) that can securely transmit conditional access software via a bi-directional communication channel. In order to guarantee a secure channel based on mutual authentication between a DCAS head end server and set-top boxes, DCAS messages are encrypted and digitally signed. Owing to applied cryptographic algorithms, it is impossible to get information from messages directly without additional processing. Through categorizing DCAS messages into several groups, the proposed monitoring method can efficiently parse and trace DCAS messages in real-time. In order to verify the stability and effectiveness of the proposed monitoring method, we implement a DCAS monitoring system capable of capturing and parsing all DCAS messages. The experimental results show that the proposed monitoring method is well designed.

• Korean Institute of Interior Design Journal
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• no.10
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• pp.21-27
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• 1997

The purpose of this study was to examine the trends of recently published color studies and the characteristics of the methods and study tools used in the field of interior design and to suggest the desirable study tools which can be practically used in housing color plav. All the color studies published after 1990 were collected and categorized, and the representative studies in the contents and methodologies were selected. The study tools such as image categorizing words, evaluating adjectives, interior photos, color palettes, interior perspectives by computer system, models, etc. were most frequently used in housing color studies. By analyzing the characteristics and restricts of each tool, desirable methods which can be practically used in color plan situation were suggested.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2002.11b
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• pp.166-171
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• 2002

The transmission loss coefficient is very important acoustic property in parallel with absorption and acoustic impedance categorizing the acoustical materials, which can control the acoustical problems. At the same time, the transmission loss coefficient is a key parameter to choose the optimum material for the analysis of acoustical characteristics of material using SEA(Statistical Energy Analysis). In this paper, the transmission loss coefficient measurement system using 4-microphone impedance tube is proposed, based on the idea calculating the full transfer matrix of the acoustical sample to test. The theoretical background and measurement system are introduced, and finally the measurement results are verified.

• Asian Journal of Innovation and Policy
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• v.5 no.3
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• pp.251-274
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• 2016

Practical methodology for categorizing collaborative disciplines or research in a quantitative manner is presented by developing a Correlation Matrix of Major Disciplines (CMMD) using bibliometric data collected between 2009 and 2014. First, 21 major disciplines in science and engineering are defined based on journal publication frequency. Second, major disciplines using a comparing discipline correlation matrix is created and correlation score using CMMD is calculated based on an analyzer function that is given to the matrix elements. Third, a correlation between the major disciplines and 14 research fields using CMMD is calculated for validation. Collaborative researches are classified into three groups by partially accepting the definition of pluri-discipline from peer review manual, European Science Foundation, inner-discipline, inter-discipline and cross-discipline. Applying simple categorization criteria identifies three groups of collaborative research and also those results can be visualized. Overall, the proposed methodology supports the categorization for each research field.

• Korean Management Science Review
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• v.33 no.4
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• pp.77-89
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• 2016

Due to recent proliferation of the mobile shopping channels, customers increasingly tend to purchase using online channel while experiencing physical products in offline shops. This phenomenon requires traditional offline retailers to consider integrating online channels. In this study, we propose strategic options for the traditional offline retailers regarding the online channel integration, and provide corresponding decision models to maximize the expected profits. We also investigate how the strategic options vary with the product characteristics, by categorizing the products based on inventory cost, demand uncertainty, and fitness to the online channels. By analyzing numerical examples we illustrate how the best online channel integration strategy should be differentiated depending on the product categories.