• Journal of Korea Technical Association of The Pulp and Paper Industry
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• v.44 no.4
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• pp.32-42
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• 2012

Wood biomass including forest residues, waste wood, and construction residuals has been widely generated in Korea, but forest biomass from the National Forest Management Operation Project plays a big role in generating wood biomass. Unfortunately the promotion policy of woody energy organized by the Forest Service in Korea concentrates more on demand creation rather than on supply expansion. Therefore, in order to utilize insufficient wood resources effectively, it is greatly required to develop uses for maximizing their added value. In particular, more attention to the use of the second generation biomass has been paid in foreign countries because there is a threshold that the first generation biomass cannot produce enough biofuel without threatening food supplies and biodiversity. In Korea, wood pellets are regarded as the alternative clean fuels to oils and coals that emit green house gases into the atmosphere. However, using wood as pellet raw materials can not be an economic way because the value of wood disappears right after burning in the boiler in spite of its contribution to the decrease of carbon emission. Differently from wood pellets, kraft pulping process using woody biomass produces black liquor as a by-product which can be used to generate electricity, bioenergy and biochemicals through gasification. Thus, it can be more economical to make a torrefaction of lignocellulosic biomass such as low-quality wood and agricultural leftovers as raw materials of pellets.

• The Mathematical Education
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• v.60 no.1
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• pp.77-110
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• 2021

In this study, a student participation-centered class based on student mathematical thinking as a the meaningful subject was called a student thinking-based math class. And as a way to support these classes, I paid attention to lesson design. For student thinking-based mathematics classes, it is necessary not only to anticipate student thinking and teacher feedback, but also to plan in advance how to properly arrange and connect expected student responses. The student thinking-based lesson design template proposed in this study is a modified three-step(introduction, main topic, summary) lesson design template. The reason for revising the existing design template is that it has limitation that it cannot focus on mathematical thinking. Using the conceptual framework of student thinking-based mathematics lesson as a lens, the difference between the three-step lesson design prepared by pre-service teachers and the students' thinking-based lesson design prepared by the same pre-service teachers was analyzed. As a result of planning lessons using the student thinking-based lesson design, more attention was paid to the cognitive and social engagement of students. In addition, emphasis was placed in the role of teachers as formative facilitator. This study is of significant in that it recognizes the importance of classes focusing on students' mathematical thinking and provides tools to plan math classes based on students' thinking.

• Cross-Cultural Studies
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• v.20
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• pp.29-66
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• 2010

This paper is a qualitative study of the experiences of Korean heritage language learners (KHLLs) with literacy (reading and writing), particularly before they enter the college-level heritage language classroom. Previous research, both qualitative and quantitative, has addressed the overall language background of KHLLs, including oral and aural proficiency and writing and reading ability, as well as demographic information (such as when the student immigrated to the United States) in relation to language test scores. This study addresses KHLL experiences in the following six areas as they relate to student perceptions and attitudes toward their own heritage language literacy: language proficiency, motivation for learning, academic preparedness, cultural connectedness, emotional factors, and social factors. Fourteen undergraduate students at a university in the western United States participated in a convenience sample by responding to a 10-question survey. Trends in responses indicated that KHLLs entered the classroom with high integrational motivation and experienced great satisfaction with perceived progress in literacy, but students also expressed regret for having missed childhood learning experiences that would likely have resulted in higher proficiency. These experiences include informal and formal instruction in the home and formal instruction outside of the home.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.10 no.6
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• pp.261-268
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• 2015

This study is aimed at clarifying the influence of an elementary school student's leadership on the Entrepreneurial spirit, and whether the career awareness really gives a regulatory effect on the Entrepreneurial spirit. This study organized the students above 4th grade in an elementary school located in Seoul as research subject; then this study analyzed the collected 420 questionnaires in August, 2015, using SPSS 21.0 Statistical Program. This study used frequency analysis, descriptive statistic analysis and cross analysis as a statistic analysis method. The research issues include 1)Does the leadership of an elementary school student have a significant influence on the Entrepreneurial spirit? 2) Is it possible for career awareness to play a regulatory role in the relationship between an elementary school student's leadership and the Entrepreneurial spirit? The research results of this study are as follows: First, it was found that an elementary school student's leadership has a significant influence on the Entrepreneurial spirit. Second, about whether independent variable factors cause a difference in career awareness as regulating variable in the relationship, in which independent variable factors have an influence on the Entrepreneurial spirit, only a part shows a significant effect as a regulating variable. This study hopes that this research results could provide data to meet the educational alternative to the necessity of leadership education required by the present period, and provide the basis of the use for educational policy for elementary school students with this research results as the center.

• Korean Journal of Acupuncture
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• v.30 no.3
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• pp.185-192
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• 2013

Objectives : Many studies have investigated the electric specificity of meridian and acupoint. However, the definition about the real substance of 'Ki(Qi)' that flows in the meridian has not been established yet. The authors hypothesized that the 'Ki(Qi)' may be the very 'bioelectricity' of western medicine, from two common features that they are not visible with naked eyes and that they function in the living body only. Methods : 20 healthy adults participated in this study. Heart rate was measured before and after exercise. Acupuncture was performed at PC6 immediately after exercise with counter balance in the first experiment. In the second experiment, acupuncture group was further divided to the three groups, i.e. glove acupuncture group, manual acupuncture group, and NaCl acupuncture group. In the glove group, acupuncturist put on the two folds of latex gloves to block bioelectric currents between the acupuncturist and subject. In the NaCl group, acupuncturist had his fingertips wet with NaCl solution. Results : Exercise increased Heart Rate and acupuncture at PC6 inhibited this increase. In the second experiment, the significant difference compared to the comtrol group was the most in NaCl acupuncture and the least in Glove acupuncture. However, there was no significant difference between three groups. Conclusions : The results of this study seem to be deficient as a conclusive evidence for the hypothesis that the 'Ki(Qi)' of Korean Medicine is the 'bioelectricity' of western medicine.

• Proceedings of the Korea Water Resources Association Conference
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• 1994.02a
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• pp.205-212
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• 1994

• 대한예방의학회:학술대회논문집
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• 2002.05a
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• pp.89-89
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• 2002

• Hwankyungkyoyuk
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• v.7 no.1
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• pp.46-87
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• 1994

Our country has been consuming a huge amount of energy in the course of industrialization and its demand is expected to increase enormously in the future. However, the deposits of energy resources are so limited that the settlement of energy problem comes up the essential subject. To solve the energy problem, it is requested that new resources to gain energy stably should be developed and also energy should be economized and used effectively. The effective use of energy and an the wisdom of economy in energy are requested to everybody and these things should be habitualized from very young age through education. Nevertheless, almost every school in our country hasn’t been concerned about energy education. Even though they have a concern, they are very short of the energy education materials and the quality of the materials is not so good. Therefore it is very meaningful to the settlement of energy problem of the country to make the students who will lead our country to make the students who will lead our country in the future realize the seriousness of energy problem and to provide them the necessary knowledge and methods to solve this problem so that they practice those things in everyday life. Having these necessities, this research, supported by The Korea Energy Management Corporation(KEMCO), was performed for 8 months from April 17, 1994 to December 17, 1994. Many peoples participated in this study such as 30 staffs of researchers and authors, 5 staffs of photographers and illustrators, and 3 VCR program producers developing an energy education material set for middle school students that includes a printed material for student, a diskette for computer simulation, a teacher's guidebook, VCR material and its guidebook. The following main development direction was established : First, the material for student should be consisted of units that let students know the seriousness of energy problem. Second, the focus should be put on the necessary method and practice to economize energy actually in real life based on the basic knowledge learned in elementary school. Third, material for student should be consisted of modules to be student activity-oriented teaching-learning rather than lecture-oriented one. The activity, to maximize student's interests, should be presented in various forms such as experiments, investigation, play, data interpretation, computer simulation, visits, expression and appreciation, etc. To develop the energy education materials for middle school students, a research plan was made first. After literature review about domestic and foreign energy education materials, several research trips home and abroad, and discussion meetings, the basic theory of energy education such as the principle, objective, contents, teaching-learning method, and evaluation method was established. Material for student was developed through the following procedures : The activities in the existing energy education materials were analysed and were divided into four categories related to energy using places of home, school, community, and country, and which were again divided into three categories related to time of past, present, and future, Considering these division, nine modules which are structure units of material for student were chosen, Each module comprises 2-4 activities. Totally 31 activities were designed in this way. The syllabi were made out for each activity and writing was asked for to experts related to each activity after several discussions and revision. To complement the draft, another several discussions and revision were also made on it and then pictures and illustrations were asked for. All these procedures complete the material for student, titled ; Energy Inquiry of Middle School Students', which totals 129 pages and is all in color. As the manuscript of material for student was fixed, writing for teacher's guidebook was asked for to the same writers. The draft of teacher's guidebook was also complemented through the several concentrated works and discussions. Teacher's guidebook focused on the teaching-learning principle and methods of energy education and on the concrete instruction cases for effective instruction of material for student. It is organized with two parts : the one is 'general outline' which introduces theoretical contents and the other is 'details' which are practically helpful to teaching-learning. It is totally 131 pages including both 'general outline' and 'details'. The VCR material and its guidebook consist of contents that cultivate the good attitude trying to economize energy and raise student's interests with a purpose of strong motivation to recognize the necessity of economy and practice it. After establishing development direction of VCR material through discussion meetings and research trips, its script was made by relevant experts. Then the script was also reviewed two times. The drafted VCR material made by a video material developing expert was examined and modified by previews twice. After completion of VCR material, the VCR guidebook was made. All these procedures led to the development of VCR material which runs 20 minutes in VHS type. The VCR guidebook shows a production purpose of the program, structure of contents, evaluation methods, and contents of the program in detail to give help to instructors when they use this VCR material, When these energy education materials are used, it is desirable that the VCR material should be presented first to induce student's motive, and then material for student is introduced Since the material for student is composed of activity-oriented modules and each module is independent one another in general, and each activity is, too. the necessary module or activity can be chosen and utilized in any order according to school or class conditions. This energy education materials will contribute to the development of student's ability to solve energy problem in everyday life and teacher's ability to teach the fundamental knowledge and method in solving energy problem.

• The Journal of the Korea Contents Association
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• v.17 no.4
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• pp.468-477
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• 2017

The purpose of this study was to exam nursing students to verify the effects of self-directed learning readiness, teacher-student interaction, educational performance, stress and learner motivation on learner satisfaction. The study population consisted of second and third year nursing students at E university located in S city. Data were collected between June 15, 2016 to June 24, 2016, and questionnaire comprised items to measure general characteristics, learner motivation, teacher-student interaction, self-directed learning readiness, educational performance, and learner satisfaction. A total of 132 students were included for the final analysis. Learner satisfaction was positively correlated with self-directed learning readiness (r= .21, p= .018), teacher-student interaction (r= .39, p<.001), educational performance (r= .21, p= .014), and learner motivation (r= .75, p<.001). In addition, learner motivation was positively correlated with self-directed learning readiness (r= .24, p= .005), teacher-student interaction (r= .38, p <.001), and educational performance (r= .21, p= .018). Finally, learner motivation and teacher-student interaction were found to explain 59.7% of the variance of learner satisfaction. Our findings suggest strategies and interventions that boost learner motivation and teacher-student interaction which are required to improve learner satisfaction in nursing education.

• The Journal of Korean Society for School & Community Health Education
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• v.1 no.1
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• pp.119-130
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• 2000

The purpose of this study was to serve as a basis for more effective sex education, by examining the influence of obscene media on elementary school student's sex consciousness. For attaining the purpose, the research questions were posed as follows: 1) What's general characteristics of elementary school students? 2) How much are elementary school students exposed to obscene media? 3) Is their sex consciousness different according to the degree of being exposed to obscene media and the appearance of secondary sex characteristic? The subject of study were the 400 male and female students who were in the sixth grade at elementary school in the city of Paju. The questionnaire survey was conducted to find out their general characteristics, sex consciousness and degree of being exposed to obscene media. The conclusions were as follows; 1) Basic Information 94% of the students investigated were living with their parents. The greatest number of their parents were in their fourties. Concerning the religion of their families, 47.5% belonged to Christianity or Catholicism. 47.3% got in touch with obscene media, which indicated that the harmful influence of that media was great. Their basic knowledge of pregnancy was very poor, as 27.2% weren't sure whether being pregnant could be caused only by shaking hands, hugging or kissing. 34.7% considered it a natural behavior to contact the other sex. Regarding their practice of sexual behavior, they'd have an experience of hugging or kissing. 2) Group Comparison The female students underwent the appearance of secondary sex characteristic faster than the male students. As a result of examining if their degree of being exposed to obscene media was affected by the presence or absence of secondary sex characteristic, no statistically significant difference existed in all the groups: the entire group, male student group and female student group. There appeared, however, statistically significant differences between male and female students, as the number of male student who hadn't yet been exposed to obscene media was less than that of female student who hadn't. And the number of male student who had been much exposed to obscene media was more than that of female student who had. 3) Sex Knowledge, Sex Attitude and Sex Practice The extent of making contact with obscene media didn't make statistically significant difference to the sex knowledge of all the groups. But more extent of getting in touch with obscene media led to more sex attitude and sex practice in the entire group. However, as a result of analyzing these things by the presence or absence of secondary sex characteristic, it's found in general that the group that had secondary sex characteristic possessed statistically better sex knowledge than the other group that hadn't. For the male students, there appeared little disparities in three subareas of sex knowledge, sex attitude and sex practice. For the female students, however, the group that had secondary sex characteristic owned better sex knowledge than the other group that hadn't, and the former group looked upon sex attitude as more natural.