• Journal of The Korean Association For Science Education
• /
• v.20 no.2
• /
• pp.200-213
• /
• 2000

This study is to examine how common science, which was selected as a required subject in high schools with the reorganization of the 6th national science curriculum by the Ministry of Education, is taught in high schools these days. The results show that only one teacher is teaching common science in 3.2% of schools or the teachers divide and teach units according to their majors. In this situation, there are many problems because there are too many integrated contents in each unit and they are too short to solve the study subject during the unit time of 50 minutes. Another problem is that there is no special laboratory for common science. For the knowledge part of common science, lecture-learning is used as a method of teaching and for the inquiry part, inquiry-learning is used. Evaluation is conducted using subjective or objective paper-tests for the knowledge part, and reports are used for evaluation in the inquiry part. Therefore, this study shows that students' response to common science is below the general level and this subject missed the original intent introduced to raise students' interests about science.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
• /
• v.19 no.3
• /
• pp.343-351
• /
• 2008

In this paper, a spiral shaped common mode filter(CMF) embedded in a flexible printed circuit board(FPCB) is proposed for a multi-function cable. The CMF embedded in a FPC cable presents a new concept as a multi-function cable by the common mode rejection characteristics without a surface mounted device(SMD) CMF. The embedded CMF has a wideband common mode rejection bandwidth and an enhanced differential mode characteristics compared to conventional CMFs that use a magnetic material such as a ferrite of high loss. The proposed CMF of 3 turn inductors has a common mode rejection bandwidth from 0.4 GHz to 3.12 GHz and has 1.95 dB at 3 GHz, 6.97 dB at 8 GHz improvements of a differential mode insertion loss compared to the commercial LTCC(Low Temperature Co-fire Ceramics) CMFs.

• Proceeding of Spring/Autumn Annual Conference of KHA
• /
• 2004.11a
• /
• pp.111-116
• /
• 2004

This study is aimed to be used as basic data to plan Korean style cohousing for double-income families in the future by studying their lifestyle, housing needs and housing awareness on cohousing. The results of the study are as follows. 1) As for the life style of the subject families, it was a housewife that mainly does the household affairs despite of the status of double-income family. Also, as for the social activity, almost half of the respondents said that the spending in child-care facilities was not sufficient and wanted to send their children to ones within their neighborhood. 2) As far as housing awareness on cohousing concerned, among specific items, the child care area, the household affairs division area, and participatory awareness of residents in housing planning and management got higher scores, while as for awareness on utilizing common space, using the common hobby rooms, promenades and benches, exercise facilities, common yard, and study rooms got higher scores. When asked about the necessity for cohousing in Korea, they gave very positive answers, but the answer to their willingness to reside in it was less positive. 3) Summarizing the housing needs on cohousing, it turned out that more people wanted to reside in suburban area with others having common grounds with them as for a desirable residence environment. They wanted the neighborhood to be composed of 10${\sim}$29 families, and medium-density semi-detached house occupied by owners. They wanted a mixture of independent management and entrust management for managing common facilities, and common meal once a week. They wanted indoor exercise facilities to be more extended than other common facilities, and the house of $100m^{2}{\sim}130m^{2}$ with 3 bedrooms, 2 bath rooms, and a large living room and dining room.

• Journal of the Korean housing association
• /
• v.19 no.5
• /
• pp.93-102
• /
• 2008

In Korea, a movement for forming intentional communities is gathering people's interests to improve individualistic living environment, and to create a humanistic lifestyle. However, it is difficult to say if its management is successful or not, because intentional community is just in the experimental stage in Korea. The purpose of this study is to identify actual condition of residents' participation in forming process, shared activities in their daily lives, residents' regulation, common facilities and its management in order to offer basic information for revitalization of intentional communities in Korea. 7 intentional communities including eco-friendly villages, religious communities and a cooperative housing community were collected as the study objects. Upon analysis, those communities were divided into two groups according to their purpose of establishment; "HC (Housing-life focused Community includes cooperative housing community and eco-friendly community)" and "IC (Ideology focused Community includes ideology community and religious community)" in order to identify difference in residents' participation between the two groups. In-dept interviews with representatives of 7 intentional communities by a structured questionnaire were used as study method. The findings of this study are as follows; In general, more active residents' participation is identified in ICs than in HCs. There is no common house, which is considered as essential in intentional community, in HCs, while it was facilitated in all ICs. Role of leader seems more important in ICs than in HCs. About the ownership of housing and land, private owned is common in HCs, while community owned is common in ICs. Shared activities and residents' regulations are evidently less in most HCs than in ICs. Furthermore, in order to run a community sustainable, it is crucial to encourage sense of community among residents, and developing common house and activity programs. Common house design, which can promote proactive residents' participation in shared activity should be studied fitted to Korean circumstances. Above all, proactive participation in the shared activities is one of the most important factors in intentional community.

• Asian Pacific Journal of Cancer Prevention
• /
• v.16 no.8
• /
• pp.3551-3557
• /
• 2015

Background: Non-Hodgkin's lymphoma (NHL) is a heterogeneous type of neoplasm of the lymphatic system. To have a more accurate and early diagnosis we need to know signs, symptoms and complications of lymphoma in early stages besides pathology and immunohistochemistry. Materials and Methods: This prospective study included 110 cases of NHL that were followed since February 2012 till November 2013. Biopsies were taken from all the patients besides bone marrow study. Signs and symptoms were categorized into "B" symptoms, general, lymphadenopathy and extranodal involvement and we compared the frequencies by stage and grade. Results: Of 110 cases, 88.9% had B-cell and 11.1% T-cell type with mean age $48.5{\pm}18.6$ years. "B" symptoms and lymphadenopathy were more common in men. Cervical lymphadenopathy was the most common sign (44.8%). and hematologic, bone marrow, bone and neurologic lesions were the most common complications. All complications were more common in males. "B" symptoms were seen mostly in stage III, general signs and symptoms in stage IV, and lymphadenopathy in stage II. Intermediate grade was also the most common in all signs and symptoms. In this study 12 (10.9%) patients had relapse, with neurologic and bone marrow as the most common sites of tumor recurrence. Conclusions: There is a meaningful relationship between male gender for NHL and anemia that can be due in part to higher incidence of bone marrow involvement and stage IV disease in male cases. We also found a strong relationship between low grade NHL and age. On the other hand extranodal involvement is more common in female groups.

• The Journal of Pediatrics of Korean Medicine
• /
• v.13 no.2
• /
• pp.125-137
• /
• 1999

The common cold is the most common pediatric infectious disease, and the incidence is higher in early childhood than in any other period of life. Treatment of the common cold is largely symptomatic. Thus treatment of oriental medicine for the common cold is very effective and safe. We studied 81 children suffering from common cold Oriental Medicine Hospital in Kyunghee University, and analyzed age, sex, season, clinical manifestation, complications, prescription. The results were as follows: 1. Age and sex distribution of children from 1 to 3 was 37.1%, 3 to 6 was 34.6%, over 6 was 24.7%, male to female ratio was 1.31 : 1 2. Frequency of affection per year, from 3 to 5 was 30.9%, 6 to 9 was 29.6%, over 10 was 27.2%, below 3 was 4.9% 3. Frequency of seasons giving rising to common cold, winter was 40.7%, spring and autumn were 16%, summer was 1.2%. 4. Frequency of complications, empyema and rhinitis were 38.3%, asthma was 21%, pneumonia was 16%, atopic dermatitis was 7.4%. 5. Frequency of Clinical manifestation, cough and sputum were 45.7%, high fever and sore throat were 27.2%, complex symptom was 25.9%. 6. Frequency of prescription, BoAh-Tang-gami(補兒湯加味)was 27.2% BangPungHaeDoc-Tang(防風解毒湯)was 11.1 %, GamiGinHae-Tang (加味鎭咳湯)was 11.1%.

• Transactions of the Korean Society of Automotive Engineers
• /
• v.20 no.2
• /
• pp.90-97
• /
• 2012

It is investigated of the DME spray characteristics about varied ambient pressure and fuel injection pressure using the common rail fuel injection system when the nozzle holes diameter is varied. The common rail fuel injection system and fuel cooling system is used since DME has compressibility and vaporization in atmospheric temperature. The fuel injection quantity and spray characteristics were measured. The spray was analyzed of spray shape, penetration length, and spray angle at the six nozzle holes. The 2 types injector were used, the one was 0.166 mm diameter the other one was 0.250 mm diameter. The ambient pressure which is based on gage pressure was 0 MPa, 2.5 MPa, and 5 MPa. The fuel injection pressure was varied by 5 MPa from 35 MPa to 70 MPa. When using the converted injector, compared to using the common injector, the DME injection quantity was increased 127 % but it didn't have the same heat release. Both of the common and converted injector had symmetric spray shapes. In case of converted injector, there were asymmetrical spray shapes until 1.2 ms, but after 1.2 ms the spray shape was symmetrical. Compared with the common and converted injector, the converted injector had shorter penetration length and wider spray angle than the common injector.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
• /
• v.34 no.1
• /
• pp.83-89
• /
• 2008

Purpose: Different patterns in the causes of maxillofacial injury are thought to correlate with socioeconomic status and regional environment. This study investigated maxillofacial fractures in order to analyze maxillofacial trauma characteristics and the relationship between the causes and injury patterns in Korea. Material and methods: A total of 518 patients with maxillofacial fractures who were treated at the Seoul National University Boramae Hospital between 1996 and 2004 were retrospectively analyzed. Data were obtained from the patients' medical records and radiographs. The male to female ratio in the patient group was 2.78:1, and the mean age was 32.3 years. Results: Midfacial fractures were the most common location of injury (46.1%). The most common etiologic factor was an activity associated with daily life (42.6%) including falls, stumbling, and collisions. The second most common cause was assault (32.4%), followed by traffic accidents (13.7%). In the case of midfacial fractures and mandibular fractures, assault was the most common etiologic factor, whereas in the case of alveolar bone fractures, activities associated with daily life were the most common cause. With regard to age groups, assault was the most common cause for patients between 10 and 39 years old and an activity associated with daily life was the most common cause in those under 10 years and over 40 years. Conclusions: This study concluded that activities associated with daily life and assault causes a large proportion of Korean maxillofacial injuries and that preventive measures should be implemented in order to minimize these risks.

• The Journal of Natural Sciences
• /
• v.8 no.2
• /
• pp.257-287
• /
• 1996

The late period of Choson was the renaissance of the modern literature and art of the 'common-people'. Appearance of the common-people class following the emergence of such literature and art highlighted the common costume culture and evoked a fashion. The common trend of fashion of all classes at that time included a exaggerated hair style, a jacket short and tight enough to expose the breasts, a belt looking like a sensual silhouette of a woman body were expressed. Appreciating the human body could be regarded as some social advances at that age, when all the woman's clothing behaviors were restricted and controlled by the Confucian rules. Although eroticism itself is quite dependent on the basic instinct of a human being, this way of expressing eroticism had a social significance, in that women tried to be freed from the long-lasting social bondage. Therefore, the erotic mode during the late half of Choson reflected the society as well the women's repression. In addition, was the disclosure of humanity shadowed by the crusts of the hypocritical and superficial Confucian morality. It implied advances and modernity of the literature and art of the common-people at that time.

• Journal of the Korean association of regional geographers
• /
• v.22 no.1
• /
• pp.49-63
• /
• 2016

Environmental degradation and economic bipolarization have become major issues as the aftermath of the globalizing capitalism. Commons have received attention as an alternative to capitalistic use of resources. The most representative is the neo-institutionalist approach where Elinor Ostrom's study summarizes fundamental principles of common resource management. Maria Mies also insists that co-relationship in a community is the most essential to manage common resource successful. In a similar vein, this study attempts to prove that common resource management can create solutions to socioeconomic problems and ways to prevent resource scarcities in the future. Jeju-Haenyeo community is chosen as a successful case to be examined based on the fundamental principles of commons and community. Qualitative surveys have preceded for Jeju-Haenyeo to elaborate and extend the aspects of common resource use and management. This study can bring a positive influence on understanding the Jeju-Haenyeo community and other common resources management institutions.