• 한국가정과학회지
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• 제7권4호
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• pp.99-113
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• 2004

The purpose of this study to find out of the middle school students' knowledge, consciousness and behavior of the environmental problems. The sample of this study were 489 middle school students in Busan area. The collected data were statistically analized by using SPSS program. The major findings were as follows: 1. The level of middle school students' consciousness of environmental problems is 4.07 out of perpect 5. The highest was waste pollution(M=4.35), and the lowest was noise pollution(M=3.39). The level of middle school students' behavior of environmental problems is 3_49 out of perpect 5, which is somewhat lower than the consciousness of environmental problems. The highest was air pollution(M=4.11), and the lowest was water pollution(M=3.23). 2. The middle school students' consciousness and behavior of environmental problems showed passive corelation$(P<.01)$ : The higher the consciousness of environmental problems is better the behavior of environmental problems. 3. The level of middle school students' knowledge of environmental problems showed notable difference with sex$(P<.01)$ and a school year$(P<.05)$.

• Child Health Nursing Research
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• 제12권2호
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• pp.244-252
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• 2006

Purpose: This study was conducted to find out the relationship among resilience, coping mechanism, social support and family strengths and to explore the predictors for school adolescents' resilience. Method: The subjects of this study were 296 high school adolescents residing in two urban area in Korea. The subjects completed self-report questionnaires measuring Resilience(Jew, et al., 1997), Coping Mechanism(Carver, et al., 1989), Social Support(Lee, 1997) and Family Strengths(Olson 1982). Results: Socio-demographic characteristics of school adolescents influencing resilience, coping mechanism, social support and family strengths were revealed. The results showed that resilience, problem-focused coping, social support and family strengths were correlated positively and self-esteem support, problem-focused coping, sibling's and mother's help, and instrumental support were the predictors of resilience of school adolescents. Conclusion: We found out the specific attributes of individual, social and family factors which predict resilience for school adolescents. These results may suggest further studies to investigate the relationship between stress and resilience, find out other predictors of resilience for Korean school adolescents, examine whether protective factors for adolescents' problem behaviors influence similarly on resilience.

• 한국가구학회지
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• 제23권4호
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• pp.388-394
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• 2012

Korean elementary school facilities are a lot of changes since the mid-1990s. Creative learning ability to become more important. Interior space environment and the hardware changes needed improvement. In this study, depending on the teaching methods and curriculum characteristics to suggest design guidelines for a more effective lesson plan by changing the terran out. Open education free to enhance the development and creativity of the human spirit, the human, and realize the value of education is to increase the relevance of education for self-realization and social. Space for open educational practices through advanced layout is proposed. There is a need for the development of new school furniture for a variety of lay-out. It is important to develop a spatial variability in new school furniture.

• Steel and Composite Structures
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• 제22권3호
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• pp.691-712
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• 2016

In this editorial, buckling analytical investigation of the nanocomposite plate with square cut out reinforced by carbon nanotubes (CNTs) surrounded by Pasternak foundation is considered. The plate is presumed has square cut out in center and resting on Pasternak foundation. CNTs are used as amplifier in plate for diverse distribution, such as uniform distribution (UD) and three patterns of functionally graded (FG) distribution types of CNTs (FG-X, FG-A and FG-O). Moreover, the effective mechanical properties of nanocomposite plate are calculated from the rule of mixture. Domain decomposition method and orthogonal polynomials are applied in order to define the shape function of nanocomposite plate with square cut out. Finally, Rayleigh-Ritz energy method is used to obtain critical buckling load of system. A detailed parametric study is conducted to explicit the effects of the dimensions of plate, length of square cut out, different distribution of CNTs, elastic medium and volume fraction of CNTs. It is found from results that increase the dimensions of plate and length of square cut out have negative impact on buckling behavior of system but considering CNTs in plate has positive influence.

• 교육시설
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• 제6권2호
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• pp.13-23
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• 1999

This paper seeks to find out the policies of management and layout of middle school rooms for the community people's use. This paper surveys community's needs with respect to both the use of school rooms before, during, and after classes and preferences of use of school rooms. This paper adopts two experimental case studies to find out the models. It uses t-test analysis of the statistics to find out community people's preferences for the use of school rooms between two communities in an urban area, and uses simple and multiple regression analyses to develop models concerning community people's uses of school rooms before, during, and after classes. It also uses cluster analysis to find out the cluster among community people's preference of school rooms. It found, first, that community people's use of school rooms after class can be influenced by the uses of a play ground, a music classroom, an audio visual classroom, and a gymnasium. The use during regular classes is related to the uses of the fine arts classroom, a general classroom, a home economics classroom, a gymnasium, and a playground. The use before class is affected by the uses of a fine arts classroom, a playground, and a library. It also found that, with respect to community people's preferential use of school rooms, the rooms can be clustered as a cluster of laboratories such as a general classroom, a music room, a fine arts classroom, a science classroom, a home economics classroom, and a technique classroom, a cluster of athletic areas such as a gymnasium and a playground, and a cluster of supporting facilities such as a library, an audio visual classroom, and a computer classroom. Those clusters can also be clustered in more detail, i. e., that both a general classroom and playground can be apart from a cluster of laboratories or a cluster of supporting facilities; that an audio visual classroom can be fostered into a cluster with a home economics affairs classroom and a technique classroom. Finally this paper suggests policies of management and layout of school rooms.

• 대한간호학회지
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• 제15권2호
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• pp.34-48
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• 1985

The purpose of this study was to find out healtk education activities of the 435 school nurses in the secondary schools in Seoul. A questionaire was sent by mail on March 11, 1985 and received a total of 252 responds till April 4, 1985. Among them, 230 were included in final analysis. Those of 22 school nurses who have worked not more than one year were excluded. The results of the findings obtained of this study are summarized as follows: 1. An average number of health education activities carried out by the school nurses turned out to be 31.7 times/nurse/year. 2. The practice rates of health education activities by contents of health education were revealed as follows: on parasite disease 89.6%, hepatitis 89.1%, physical examination 87.3%, influenza 84.3%, etc. Health education on drinking and smoking, drug abuse were the lowest rate as 37.8% and 40.9%. 3. The practice rates of health education by the school nurses according to the health education methods were shown as follows: instruction by the teacher 90.9%, bulletin boards in the classroom 73.0%, message to home notices 72.676, etc. 4. Difficulties in carrying out health education programs by the school nurse were analysed accord-ing to Likert's five point scale. The scores on item to the no availability of teaching tools and tips were 3.90, no availability of audiovisual aids 3.801 lack of understanding from the school principals 3. 30, insufficient time of the school nurse 3.26, no guidance or unproper form of health education material 3.20, lack of knowledge of educational method 3.18. As a conclusion of this study, the development of the supporting system to health education activities and programs for improvement of school health education is strongly needed from policy making level.

• 디지털융복합연구
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• 제19권1호
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• pp.465-474
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• 2021

본 연구는 청소년 도박문제가 자살생각과 자살시도에 미치는 영향에서 학교 청소년과 학교밖 청소년 간에 어떠한 차이가 있는지를 확인하고자 2018년 청소년 도박문제 실태조사 자료를 활용하여 최근 3개월 이내에 돈내기 게임을 경험한 학교청소년 4,982명과 학교밖 청소년 518명의 실태조사 자료를 로지스틱 회귀분석으로 분석하였다. 연구결과 첫째, 도박문제수준과 지인이나 업체에서 돈을 빌린 경험, 학업성적 저하경험, 자살생각이나 자살시도 모두 학교 청소년에 비해 학교밖 청소년이 더 심각하였다. 둘째, 돈내기 게임 때문에 업체에서 돈을 빌린 경험은 자살생각과 자살시도에 유의한 영향을 미쳤다. 셋째, 도박문제수준과 돈내기 게임 때문에 친구나 선후배에게 돈을 빌린 경험, 학업 성적 저하 경험은 학교 청소년의 자살생각과 자살시도에 유의한 영향을 미쳤다. 이를 토대로 도박으로 인한 청소년의 자살문제를 예방하기 위한 개입방안에 대해 제시하였다.

• 대한관절경학회지
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• 제11권1호
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• pp.54-58
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• 2007

반월상 연골 봉합술 시 여러 종류의 흡수성 또는 비흡수성 봉합사들이 사용되고 있으며, 술자에 따라 비흡수성 봉합사가 흡수성 봉합사에 비해 안정된 고정력을 제공한다고 하여 비흡수성 봉합사를 선호하기도 한다. 그러나 봉합사가 봉합부위에 지속적으로 남아있을 경우 이로 인한 문제가 발생할 수 있으며, 저자들은 Inside-Out 반월상 연골 봉합술에서 비흡수성 봉합사가 반월상 연골 실질부를 관통하여 후내측 관절막 밖으로 밀려나온 증례를 경험하였기에 이를 보고하고자 한다.

• JSTS:Journal of Semiconductor Technology and Science
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• 제5권1호
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• pp.58-66
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• 2005

Inertial-grade vertical-type and lateral-type differential resonant accelerometers (DRXLs) are designed, fabricated using one process and tested for navigational applications. The accelerometers consist of an out-of-plane (for z-axis) accelerometer and in-plane (for x, y-axes) accelerometers. The sensing principle of the accelerometer is based on gap-sensitive electrostatic stiffness changing effect. It says that the natural frequency of the accelerometer can be changed according to an electrostatic force on the proof mass of the accelerometer. The out-of-plane resonant accelerometer shows bias stability of $2.5{\mu}g$, sensitivity of 70 Hz/g and bandwidth of 100 Hz at resonant frequency of 12 kHz. The in-plane resonant accelerometer shows bias stability of $5.2{\mu}g$, sensitivity of 128 Hz/g and bandwidth of 110 Hz at resonant frequency of 23.4 kHz. The measured performances of two accelerometers are suitable for an application of inertial navigation.

• Structural Engineering and Mechanics
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• 제83권6호
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• pp.789-798
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• 2022

The stud shear connector is the main force transfer member in the steel-concrete composite member, and the mechanical behavior is very complicated in the concrete. The concrete around the stud is subjected to the pry-out local pressure concentration of the stud, which can easily produce splitting mirco-cracks. In order to solve the problem of pry-out local splitting of stud shear connector, a kind of stud shear connector with constraint measure is proposed in this paper. Through the push-out test, the interface shear behavior of the new stud shear connector between steel and concrete flange plate was studied, and the difference between the new stud shear connector and the traditional stud connector was compared. The results show that the stud shear connector with constraint measure can effectively avoid the adverse effect of local pressure splitting by relying on its own constraint measure. The shear stiffness of the interface between steel and concrete flange plates is greatly improved, which provides a theoretical basis for the design of strong connection coefficient of steel-concrete composite structures.