• 한국막학회:학술대회논문집
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• 한국막학회 1996년도 제4회 하계분리막 Workshop (초순수 제조와 막분리 공정)
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• pp.121-147
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• 1996

Since 1980, the water quality of ultra-pure water has been rapidly improved, and presently ultra-pore water producing equipment for 64Mbit is in operation. Table 1 shows the degree of integration of DRM and required water quality exlmple. The requirements of the ultra-pure water for 64Mbit are resistivity: 18.2 MQ/cm or higher, number of particulates: 1 pc/ml or less (0.05 $\mu$m or larger). bacteria count: 0.1 pc/l or less. TOC (Total Organic Carbon, index of organic snbstance) : 1ppb or less, dissolved oxygen: 5ppb or less, silica: 0.5ppb or less, heavy metal ions: 5ppb or less. The effect of metals on the silicon wafer has been well known, and recently it has been reported that the existence of organic substance in ultra-pure water is closely related to the device defect, drawing attention. It is reported that if organic substance sticks to the natural oxidation film, the oxide film remaims on the organic substance attachment in the hydrofluoric acid treatment (removal of natural oxidation film). The organic substance forms film on the silicon wafer, and harmful elements such as metals and N.P.S., components contained in the organic substance and the bad effect due to the generatinn of silicon carbide cannot be forgotten. In order to remove various impurities in raw water, many technological develoments (membrane, ion exchange, TOC removal, piping material, microanalysis, etc.) have been made with ultra-pure water producing equipment and put to practical use. In this paper, technologies put to practical use in recent ultra-pure vater producing equimeut are introduced.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2005년도 INTERNATIONAL SYMPOSIUM ON SOIL & GROUNDWATER ENVIRONMENT
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• pp.129-130
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• 2005

• 보건교육건강증진학회지
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• 제23권2호
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• pp.1-10
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• 2006

Purpose: This study was aimed to evaluate the effects of substance abuse prevention education for middle school students in Busan. Method: The data were collected by a self-administered questionnaire before education and one month later. The whole subjects were 458 students in first grade of middle school. The data were analyzed using frequencies and difference t-test after classifying the whole into potential drug abuse group and not potential group. Results: The substance abuse prevention education was ineffective in the whole group and the potential group. However, in the not potential group, the increasing rate of SPDA(Screening scale for Potential Drug-use Adolescents) score in experimental group was less than in control group. Conclusion: The substance abuse prevention education was effective for the not potential drug abuse group. On the other hand, intensive long-term drug abuse treatment program was needed for the potential group.

• Toxicological Research
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• 제23권2호
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• pp.173-177
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• 2007

The GLP contains specific language concerning characterization of the test, control and reference substances used in toxicity studies. This paper will describe and discuss what types of documents are required to support test/reference substance characterization under GLP system. The purpose of this article is to present an overview of data needed in the characterization package that will adequately define the substance. Most sponsors use a certificate of analysis (COA) to communicate the test sub-stance characterization status information to the contracting research organizations. The COA should provide the test $material^{\circ}{\phi}s$ characterization results, substance storage requirements, expiration dates, verification of the collection of the retention sample, archival location of the data to support the characterization and GLP compliance status of the characterization.

• 한국사회복지학회:학술대회논문집
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• 한국사회복지학회 2004년도 춘계학술대회 자료집
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• pp.705-731
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• 2004

This study is to be used for research material for pastoral counseling, by analyzing grounded-theoretically how substance abusers' awareness of self and experience of relations affects problems in abusing drugs. The subject of this study was chosen as 9 prisoners who were able to participate in group counseling, among those who were in prison for substance abuse and had more than 6 months of penal servitude left. In addition, in order to indicate counseling research methods through this study, 12 group counselings were carried out during October 24th. 2002 and February 14th. 2003 and verbatim were written out to be used as original material. After the research material was analyzed, they could be categorized into 60 concepts on the whole from 'conflict' and 'constraining thinking' to 'rationalization' and 'avoidance'. When these concepts were organized into groups of similarity, there were all together 20 categories. From this study, it can be found that substance abusers had "problems about self" and "problems about relations". The factor which affected their use of drugs was the area of relations, where as henceforth their use of drugs, the situation in which they could not escape from the use of substances was affected by problems within the area of self. When facing such problems as substance abuse, the pastoral counselor must create a holding environment through counseling, and perform good enough mothering by being insightful and providing active support on the problem. They must also help one's growth into "an empathizing self", "an accepting self", "a trusting self", "a hopeful self", who can empathize, accept, trust and hope, through experience in separation from the problem, conversion, meta-communication, self-rumination, relations and inspiration of hope. Likewise, the church must be able to act as a "place of growth and skill" which aids in the forming of relations and helps to be aware of self through experience in, and understanding of, relations.

• International Journal of Human Ecology
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• 제13권1호
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• pp.1-16
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• 2012

Information about the characteristics of street-living versus shelter-residing youth is vital for tailoring prevention and intervention efforts to the unique needs of runaway and homeless youth. The present study compared two samples of youth [street-living (n=73) versus shelter-residing (n=205)], between the ages of 14 to 17 years, on behavioral and emotional factors and service use. Based on the different characteristics of the two groups, the predictors explaining the living status of the runaways and homeless youth were explored. In general, street-living youth reported more severe substance use, depressive symptoms, and risky sexual behavior, but less lifetime service involvement compared to shelter-residing youth. The factors that predicted shelter-residing status were related to younger age, prior service care experience, more knowledge about HIV, and engaging in less delinquent and risky behavior. Given the little overlap among youth in service involvement and the greater severity faced by street-living youth, the conclusions highlight the need for increased funding and attention towards facilitating the ability of street-living youth to find and enter mental health and reintegration services.

• 한국생활과학회지
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• 제6권2호
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• pp.27-36
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• 1997

본 연구는 청소년이 인식한 양육태도가 청소년의 음주, 흡연, 약물남용에 어떻게 영향을 주는가를 알아보는 것이다. 본 연구에 나타난 결과는 다음과 같다. 1. 우리나라 고등학교 2학년(95년도) 남학생들의 음주상태는 37.3% 정도가 가끔이나 자주 맥주정도의 음주를 하고 있으며, 9.5%정도가 독한술을 마시는 것으로 나타났다(전체 음주 46.8%). 흡연을 하는 것으로 15.8%가 가끔이나 꽤 자주 나타났고, 약물남용은 1%미만으로 나타났다. 여학생은 18%가 음주경험을 1.5%가 가끔 흡연을 하는 것으로 나타났고 약물남용은 0.8%가 가끔, 남학생 0.8%가 꽤 자주 한다고 보고하였다. 2. 남학생이 여학생보다 음주, 흡연을 많이 하는 것으로 나타났다. 3. 자녀가 인지한 부모양육태도와 자녀의 음주, 흡연, 약물남용 행동과의 관계는 통제적이거나 거부적일 때 음주 행동이 많았고, 통제적이거나 과보호일 때 흡연이 많았다. 허용적인 태도, 거부적인 태도와 음주행동과 상관관계가 있으며, 통제적인 태도, 거부적인 태도는 흡연과 상관관계가 있다. 약물남용은 상관관계가 나타나지 않았다. 아버지의 평등적인 양육태도는 음주와 흡연과 부적인 상관관계를 갖고 있었다. 어머니의 양육태도에 있어서는 통제적, 거부적인 태도가 맥주정도의 음주와 독한 술 음주는 거부적인 태도와 상관관계가 있는 것으로 나타났다. 흡연과 음주는 평등적인 양육태도와 부적인 상관관계가 있는 것으로 나타났다. 4. 부모의 사회경제적 지위와 음주, 흡연, 약물남용은 상관관계가 없는 것으로 나타났다.

• 한국산학기술학회논문지
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• 제16권5호
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• pp.3333-3343
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• 2015

본 연구의 목적은 한국 청소년의 성경험과 위험 성행동을 중심으로 약물사용 관련요인을 파악하기 위함이다. 본 연구는 2011년 제7차 청소년건강행태온라인조사의 자료를 활용한 2차 분석연구로, 익명성 자기기입식 온라인 조사를 통해 자발적으로 참여한 청소년의 총 75,643명의 자료가 분석에 이용되었으며, 복합표본분석 방법으로 서술통계, rao-Scott ${\chi}^2$, 로지스틱회귀분석을 이용하였다. 연구결과, 약물사용은 동성과의 성경험(adjusted OR=5.691; 95% CI=4.223-7.670)과 이성과의 성경험(adjusted OR=21.180; 95% CI=14.704-30.507) 및 성폭행(adjusted OR=9.936; 95% CI=7.217-13.680), 데이트 성폭행(adjusted OR=16.979; 95% CI=11.648-24.751), 음주 후의 성관계(adjusted OR=6.564; 95% CI=3.986-10.810), 예상치 못한 임신(adjusted OR=18.628; 95% CI=8.476-40.936), 성병(adjusted OR=21.872; 95% CI=13.920-34.367)과 같은 위험 성행동과 유의한 관련성이 있는 것으로 나타났다. 이러한 연구결과는 약물사용 청소년은 위험 성행동을 경험할 개연성이 높은 것으로 보여준다. 그러므로 한국 청소년의 약물사용은 성문제와 함께 그 해결방안이 모색되어야 하고, 가족과 학교 모두의 참여에 근거한 신체적, 심리적, 사회적 측면의 문제해결을 위한 중재가 개발되어 적용되어야 할 것이다.

• KIEAE Journal
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• 제5권1호
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• pp.3-10
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• 2005

Indoor air quality (IAQ) is recognized as a byproduct of industrialization that took place in the 20th century. The great attention to IAQ has been gained since 1980s, and led to numerous research studies that have mainly made in the developed countries. As the development of residential environment in Korea enters in the process of qualitative growth, IAQ has viewed as one of the core issues in the society, and research in relation to IAQ has been implemented until now in the fields of engineering and medical science. It is widely known that the sources and effects of indoor air pollution have been various, and IAQ research with multidisciplinary approaches is required. Nevertheless, few research embedded into a socio-behavioral approach to identifying interventive measures of residents and analyzing their choices is made. The purpose of this study is to examine the use of an interactive measure of residents in apartments that is air purification with phytoncide available in the market, and to investigate their self-reported effects of the air purifying substance on sick building syndrome symptoms. This study utilizes a field experiment design with pre-test and post-test, and the experiment is conducted in a natural field setting. A total of 87 test subjects from 32 households with already sick building syndrome are drawn via internet, and the participation is solely voluntary. The participants receive and use the air purifying substance, and are asked to use it continuously for two weeks and identify their self-reported symptoms of before- and after-use. The research findings indicate that air purification using phytoncide is effective to alleviate their symptoms in relation to sick building syndrome. Also it is noted that the participants report that the use of the air purification causes the positive impacts on their daily life. Further research is needed that compares the group with only humidifier and evaluates the mid-term and long-term use of the air purification and its effects.

• International Journal of Human Ecology
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• 제5권1호
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• pp.1-8
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• 2004

The current study uses longitudinal data, which show secondary school students' responses in a biennial data of surveys from England (n=4,326/boys=2,313;girls=2,413) and Scotland (n=3,528/boys=1,744;girls=1,784), to describe the association between availability of cigarette sales to minor, prosmoking attitudes of family members and drinking/drug use and smoking behaviours amongst adolescents. The findings provided strong evidence suggesting that availability of cigarette sales to minor, lack of familial interest on the child's smoking and other substance use were positively associated with the increased level of smoking behaviour in youth. Girls and boys also differed the likelihood of smoking and being a regular smoker. Boys were found to be more likely than girls to be smoking and to be a regular smoker. The implications of promising prevention programmes for preadolescents and areas for future research are presented