• Ocean and Polar Research
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• 제31권2호
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• pp.167-176
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• 2009

Cobalt-rich manganese crusts on seamounts have received an increasing amount of attention as future resources for Co, Ni, Cu, and Mn. A dearth of detailed information regarding the relevant distribution characteristics, mining technologies, and ore processing technologies, however, has precluded potential evaluations of the technical and economic advantages of these crusts. In the past 4 years, Korea has undertaken a survey of the cobalt-rich manganese crusts in and around the Magellan Seamount and Mid-Pacific Mountains. This paper introduces the preliminary feasibility study of the distribution features and R&D results centered around the development of the cobalt-rich manganese crusts. The evaluation model was developed by modifying the model for the manganese nodules. In addition to considering the geological and geophysical differences between the manganese nodules and the cobalt-rich manganese crusts, an ore dressing subsystem was installed in the model. The mining subsystem is composed of a self-propelled collector--a pipeline with submersible hydraulic pumps for crust lifting. The smelting and chlorine leach method was selected for metallurgical processing. The production scales were established at 2,500t/y of cobalt metal. The production of three metals--cobalt, nickel, and copper--was considered in terms of metallurgical processing. The economic feasibility analyses demonstrated that the payback period was 11.4 years, the NPV was 36M$, and the IRR was 9.6% with the economic factors in the case of a cobalt price of US$ 25/lb. It was also demonstrated in this study that the payback period was 8.6 years, the NPV was 154M$, and the IRR was 14.0% in the case of a cobalt price of US$ 30/lb. This indicates that the approach under consideration appears to offer greater potential given the predicted metal prices.

• The Korean Journal of Food And Nutrition
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• 제20권2호
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• pp.218-225
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• 2007

This study was conducted to investigate the satisfaction of school dietitians with foodservice facilities and utilities in the Chonbuk area of Korea. Self-administered questionnaires were collected from a total of 22 dietitians. Statistical data analysis was completed using the SPSS v. 10.0 program. The results are summarized as follows. Among the 222 school foodservice systems, 68.5% of the schools prepared meals the conventional way and 31.5% prepared them the commissary way. Most of the school foodservice facilities were located on the first floor. Satisfaction with the location of the foodservice facility was not significantly different between the conventional and commissary systems. However, overall dietitian satisfaction with the foodservice facility locations was poor. Approximately 30% of the dietitians responded that one of the most important problems for foodservice management was the limited space and worn-out equipments in the kitchens. For dietitians' satisfaction on the types of facilities present, most schools had constructed dietitian offices, food storage facilities, cafeterias, rest rooms, dressing rooms, and preparation facilities. Yet, the amenities most often missing were storage facilities, preparation facilities, dressing rooms, rest rooms, etc. For overall satisfaction with the status of facilities and utilities, we found no significant differences between dietitians in the conventional(2.89) and commissary foodservice systems(2.86); however, the satisfaction level among the dietitians was poor. Therefore, governmental regulation agencies need to review and approve plans prior to the new construction or extensive remodeling of school foodservice facilities. Finally, content analysis was also conducted regarding the dietitians' opinions on foodservice facilities and utilities.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 한국정밀공학회 2003년도 춘계학술대회 논문집
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• pp.78-81
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• 2003

Polishing Processes are widely used in the glass, optical, die and semiconductor industry and are conventionally carried out using abrasive slurry and a polishing pad. But abrasive slurry process has a weak point that is high cost of handling of used slurry and hard controllability of slurry. Recently, some researches have attempted to solve these problems and one method is the development of a fixed abrasive pad. FAP has a couple of advantages including clean environment, lower CoC, easy controllability and higher form accuracy. But FAP also has a weak point that is need of dressing because of glazing and loading. The paper introduces the basic concept and fabrication technique of FAP using hydrophilic polymers with swelling characteristics in water and explains the self-conditioning phenomenon. Experimental results demonstrate to achieve nano surface roughness of soda lime glass for optical application

• Journal of the Korean housing association
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• 제11권1호
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• pp.79-87
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• 2000

The objectives of this study are to identify life style of X-generations in seoul, and to examine housing preference of X-generations. Data was collected through self-administered questionnaires for this study and the cases of four hundred and sixty one were analyzed. The major findings are as follows:There were four major types of X-generations want to reside in 102-135㎡ (30-40pyung) housing size. They want the specific space for leisure, working, interest, computer, sports, dressing, etc. They prefer L-DK type, kitchen furniture of a island shaped work center. X-generations consider facilities of apartment very important. They want to have automatic and high quality facilities. Housing preference differed significantly according to the socio-demographic variables and the types of life style of X-generations.

• Korean Journal of Psychosomatic Medicine
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• 제5권2호
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• pp.218-222
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• 1997

Before the dressing and debridement of the wounds, patients received hypnosis and were taught self-hypnosis. They were instructed to let the burn areas being worked on "become relaxed and numb" in the trance. The author encouraged them to imagine wound-healing. Result of this hypnoanalgesia as an adjunct treatment for burn pain proved it most effective and facilitative. Theoretical and practical implications and future research directions were discussed.

• Journal of the Korean Society of Clothing and Textiles
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• 제23권8호
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• pp.1149-1160
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• 1999

In order to investigate the influence of being self-consciousness of one's body size on clothing behavior we measured body size of Korean female college students directly and examined by questionnaire the degree of being self-conciousness of their body size the aspired clothing behavior and the actual clothing behavior. In addition after classifying the subjects into groups according to the degree of obesity we also examined the difference in the actual clothing behavior among the groups./ The results are as follows: 1) On the item of girth of the body parts the subjects felt thicker in the proximal and lower part of the body than in the distal and upper part of the body. And with respect to the style which exposes body silhouette the disparity between the aspired and actual clothing behavior was greater in the parts that the subjects felt thick. 2) After investigating the relationship between the aspired and the actual clothing behavior we found out that the style which subjects wanted to put on but actually did not was the style that exposes body silhouette and the style which subjects didn't want to put on but actually did was the style covers the body silhouette. 3) There was significant correlation between the subjects' consciousness of their body size and their actual clothing behavior. The self-consciousness of body size on actual dressing tend to influence the clothing for lower body more than the other parts. 4) The subjects were classified into lean normal and obese groups. There were significant differences among the groups in the frequency of wearing the clothing that expose body silhouette. The obese group had a tendency to avoid this clothing style.

• The Journal of Korean Physical Therapy
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• 제22권6호
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• pp.85-90
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• 2010

Purpose: The aim of this study was to investigate the relationship between social support and quality of life (QOL) in elderly people and to examine potential cross-cultural differences. Methods: The author surveyed 82 elderly people, over the age of 65, residing in a nursing home in a Korean rural area and 73 Korean immigrants living in Houston Texas USA who were also elderly. The degree of social support was measured with 20 questions that were answered using a 5 grade scale. The quality of life was measured in 5 fields (mobility, self-care, usual activities, pain/discomfort, and anxiety/depression, each scored using a 3 grade scale) with EUROQOL EQ-5D. Results: The mean score of social support was 65.43 for domestic Korean elderly people (range: 26 to 98); it was 73.43 for elderly Korean Americans (range: 26 to 100). The score was lower for domestic Koreans despite the traditional environment (p<0.05). Regarding QOL, 61% of domestic Korean elderly people complained of pain/discomfort and 47.5% appeared to have anxiety/depression, 30.5% complained of limitations in mobility, 20.7% reported limitations in usual activities, and 14.6% had limitations in basic self.care activity such as washing or dressing. A similar proportion of Korean American elderly had limitations in usual activities (19.2%) and self care activity (9.5%). But significantly fewer complained of anxiety/depression (16.5%, p<0.01) or pain/discomfort (38.3%, p<0.01). The major differences in psychological domains of QOL may be related to the degree of social support and the difference in the socio.cultural environment. Conclusion: Social support is a major determinant of QOL, especially for psychological domains, and these relationships are under the influence of the socio.cultural environment.

• Journal of Korean Home Economics Education Association
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• 제24권3호
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• pp.101-122
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• 2012

The purpose of this study is to develop teaching learning process plans with problem-based learning using book-making applying to the "Dressing and Self Expression" unit and evaluate its effect in middle school home economics for first grade. We developed teaching learning process plans with problem-based learning using book-making including 9 teaching materials for teachers and 15 learning materials for students. Further, we conducted and investigated pre- and post-tests in a form of questionnaires in 167 students from a girls' middle school in Pusan. Teaching learning process plans with problem-based learning using book-making showed positive results in body satisfaction, such as reduction in distortion or less dissatisfaction regarding students' body images. Also, they were found to be less affected by sociocultural attitude towards appearance. The estimation of students included the positive contents that the class was interested with various materials and it provided them with a chance to understand their body. Meanwhile, minor comments pointed out lack of time and complained of the amount of assignments. With these results, we found that teaching learning process plans with problem-based learning using book-making was an appropriate model to achieve the purpose of this study and we suggested that this class might be applied to other units of middle school home economics.

• Journal of Sasang Constitutional Medicine
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• 제27권4호
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• pp.404-418
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• 2015

Objectives This study investigated the effect of camping style Hospitalization program for atopic dermatitis female adolescent patients. 6 patients, 12-14 year old female adolescent, admitted for camping style hospitalization program.Methods 6 patients were admitted for camping style hospitalization program (2014.08.13~2014.08.16). The program included acupuncture, herbal medicine, examination, education, psychotherapy, dressing, exercise. The patients were analyzed by Severity Scoring Atopic Dermatitis(SCORAD) index and measured skin pH value(pH). Also, patients evaluated themselves by writing an atopic dermatitis diary which consists of diet, emotion, severity of pruritus, and sleep loss, and checked questionnaires which consist of atopic dermatitis, self treatment methods and degree of satisfaction of each program.Results Most of subjective symptoms which patients complained were improved and also SCORAD index total scores were decreased by sasang constitutional medication.Conclusions We expect that the camping style hospitalization program based on sasang constitutional medicine could be helpful for female adolescent patient of atopic dermatitis.

• The Journal of Pediatrics of Korean Medicine
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• 제28권2호
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• pp.40-55
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• 2014

Objectives This study investigated the effect of camping style Hospitalization program for atopic dermatitis children patients. Methods 6 patients were admitted for camping style hospitalization program. The program includes acupuncture, herbal medicine, examination, education, psychotherapy, dressing, exercise. The patients were analyzed by Severity Scoring Atopic Dermatitis (SCORAD) index and measured skin pH value (pH). Also, patients evaluated themselves by writing an atopic dermatitis diary which consists of diet, emotion, severity of pruritus, and sleep loss. Checked questionnaires which consists of atopic dermatitis, self treatment methods and each program satisfaction. Results After 7 days of hospitalization program, the patient's SCORAD index scores were decreased and most of the patient's symptoms were improved. Conclusions The hospitalization program could be helpful for atopic dermatitis children patients.