• 가족자원경영과 정책
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• 제15권2호
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• pp.85-101
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• 2011

The purpose of this study is to ascertain the actual conditions of volunteering activities in respect to age-integrated leisure. This study is based on the 2010 Korea Leisure Life Survey. The participants in this study were 3015 people who reside in Korean cities, except for Jeju-do. Questionnaires from the 2010 Korea Leisure Life Survey were used for the final analysis. Data were analyzed through a descriptive analysis, Chi-Square test and ANOVA by SPSS WIN 17.0. The findings indicated that 18% of the participants participated in volunteer activities as leisure in the last one year. The major findings were as follows. First, demographic characteristics such as age, academic career, income, and marital status had a positive correlation with the degree of volunteer participation. Second, there were differences in duration and field of activities according to age. Third, though most of the non-volunteer reasons were 'lack of resources', there were different reasons based on age. In detail, the reason for 10-50 year-olds (economically active population) was 'lack of time', but the more than 60 year-olds was 'health concern'. Consequently, this access to the life cycle study shows the need to improve life satisfaction.

• 한국공작기계학회논문집
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• 제17권6호
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• pp.83-90
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• 2008

Input shaping is an efficient tool to eliminate transient and residual vibration caused by motion of mechanical systems. However, the rise time of the systems tends to increase due to the presence of input shapers. This paper is concerned with the rise time reduction when using input shaping. To this end, this paper proposes an input shaper design method for an undamped single mode vibration system using a virtual mode, which is not an actual mode but reflected in the design process. The essence of the proposed method is to design a three-impulse input shaper as if a single mode system has two modes: one actual mode and one virtual mode. The natural frequency of the virtual mode is a design parameter to change the rise time of the system. This paper discusses the performance of the proposed input shapers by simulation.

• 한국염색가공학회지
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• 제29권3호
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• pp.155-161
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• 2017

In CPB(Cold-Pad-Batch) dyeing, the rubber of the padder roll is influenced by the heat, chemical and mechanical influences and thus aging of the padder roll rubber occurs. This study presents an accelerated thermal aging test of the CPB padder roll rubber with strong alkali conditions. Using Arrhenius formula of the various property values for the various aging temperatures($80^{\circ}C$, $90^{\circ}C$, $100^{\circ}C$) of the padder roll, the accelerated life predictions could be calculated. The threshold value of the property was set at different values. The hardness was set at the point where 5% degradation occurs based on the actual use conditions, and the tensile strength was set at the point where 50% degradation occurs based on the general life prediction standards. From the results of the different physical properties at differing temperatures, the Arrhenius plot could be obtained. Through the usage of the Arrhenius Equation, significant duration expectation could be predicted, and the chemical aging behavior of the CPB padder roll could be found at the arbitrary and actual temperatures.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2009년도 추계 학술논문 발표대회
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• pp.157-160
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• 2009

The decision of the Form removal time which leads the early assuring strength of the concrete from Apartment construction is the fact which is important from Reducing the period of works and the economical efficiency side. Especially, with Complex building of recent times the same Tall building and Multiple Apartment Site which only follows in upgrade of interior construction of apartment site and shortening the frame construction period becomes very, importantly is the actual condition where the effort which is various for this is attempted. But is caused by with limit and economical efficiency problem of case concrete early strength revelation of most and is not put to practical use is the actual condition. Develops concrete mixture which is a utility from the research which sees hereupon and the effect which is economic leads construction duration shortening under maximizing boil.

• 한국의류산업학회지
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• 제3권4호
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• pp.313-322
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• 2001

This study was designed to investigate actual conditions(the types and the personal physical job related factors) of fashion model in Korea. Survey was done through questionnaire data, 194 fashion models were involved survey. The data were analyzed by using frequency, cluster analysis. The results of this study were as follows : 1) The largest sample were as follows (about personal physical related factors) : unmarried, college graduate and undergraduate, resident in the Seoul, 2-24 yrs female with 175-177 cm, 52-54 kg, B-W-H (33-24-35 inch). 2) The largest sample (about job related factors) were as follows: getting private educational institution, 1-2 yrs job experience, B grade, less than 600,000 won for salaries, 100,000-190,000 won at a stage, 5-6 yrs duration of model work, inexperience in the international fashion stage, take up a foreign language, fashion magazine for fashion source, image and look of individuality for a necessary condition. The motive for job was the concern in the job. Problems with a guarantee were pointed out for the betterment working conditions. 3) The types of fashion model were classified into 4 types : the type of lack of professionalism, the type of show off one's talents, the type of dissatisfaction with working condition, the type of maturity of professionalism.

• Journal of Multimedia Information System
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• 제6권2호
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• pp.107-118
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• 2019

This paper deals with actual optical data from rural as well as urban areas in a nationwide study captured with Fisheye cameras. Simultaneously data was collected (of the receiving power density) from the mobile communications satellite N-STAR. The visibility of the satellite is easily determined by checking the value of the pixels in the binarized fisheye image of its position. The process of determining the visible satellite is automatically performed. Based on the analyses of the field data measured in Japan, we are expecting HEOs (Highly inclined Elliptical Orbiters) that would reduce blockage in the extreme northern region of Wakkanai City well as in the most crowded urban area, in Tokyo Ginza. In case of HEOs operation, the elevation angle will improve from 37 with N-STAR GEO to 75 degrees. HEOs could replace 5G/Ka-band or support in rural areas where broadband circuit is not available. We are proposing combination operations with HEOs and 5G/Ka-band to solve blockage problems, because HEOs can keep line-of-sight propagation with high elevation angle for long duration. In such operations, the communications profile on the vehicle based on actual optical data will be very useful to predict blockages and to select/switch a suitable circuit.

• KDI Journal of Economic Policy
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• 제32권1호
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• pp.131-169
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• 2010

본고에서는 노동자들이 위험 기피적이고 차입제약을 갖는 Mortensen-Pissarides(1994) 매칭모형에 경제활동참여 의사결정을 내생화하여 실업급여 지급기간 변화가 노동시장에 미치는 영향을 분석하였다. 모형의 실업은 구직활동을 하였으나 일자리를 찾지 못한 상태로 정의하고, 비경제활동은 비구직활동으로 정의한다. 경제활동참여 의사결정을 내생화하기 위하여 개별 노동자들이 노동시장으로부터 서로 다른 정확성을 갖는 정보를 관찰하고, 이러한 정보가 개별 구직확률에 영향을 준다고 가정한다. 개별 경제주체들의 자산보유규모가 서로 다르기 때문에 구직활동을 하는 것과 하지 않는 것을 무차별하게 만드는 의중구직확률 또한 서로 다르다. 따라서 자신이 관찰한 정보의 정확성이 충분히 높아서 실제 구직확률이 자신의 의중구직확률보다 높은 사람들은 구직활동을 선택하게 된다. 이러한 모형을 바탕으로 실업급여 지급기간 3개월을 벤치마크로 하여 지급기간을 각각 4개월부터 6개월까지 연장할 때 전체 노동시장 및 경제활동상태 간 노동자들의 이동비율에 미치는 효과는 다음과 같다. 첫째, 실업급여 지급기간의 연장은 취업자들의 근속기간을 늘리는데, 근속기간이 늘어나면 취업자들의 예비적 동기에 의한 저축이 늘어나고, 저축에 따른 자산보유규모의 증가는 노동의 한계비용을 증가시켜 노동시장에서 이탈할 유인을 제공한다. 따라서 경제활동참가율을 떨어뜨린다. 둘째, 실업급여 지급기간이 늘어날 때 실업급여 수급자격을 갖춘 경제주체들의 의중구직확률은 떨어지고 실업상태에 남을 확률은 높아져 실업자 수가 증가한다. 따라서 실업률이 상승한다. 셋째, 실업자 수의 증가는 균형 공석-실업비율을 감소시켜 경제 전체의 구직확률을 낮추게 되며, 이는 차례로 비경제활동상태에 있는 사람들의 경제활동참여를 저해하는 효과를 야기한다. 이러한 결과는 비경제활동을 고려하지 않았을 때에는 나타나지 않는 현상이다.

• 대한한방부인과학회지
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• 제19권1호
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• pp.202-218
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• 2006

Purpose : Because girls at puberty· are lack in sex ability, temporary menstruation disorder can be occured. This disorder is considered that will be disappeared as growing, so people used to leave the disease untreated and just watched. But clinically I frequently experience not to disappear. So I have carried out this study to investigate the actual condition of young girls's menstrual disorders. Methods : I researched 440 high school girls in Pusan by Menstruation Diary which I made about menstrual cycle, duration, amount and pain. The results were managed by the ststistics. Results :1. Menstrual cycle 1) In disorder of menstrual cycle, persons who have Bate menstruation are more than persons who have premature menstruation. 2) Persons who have normal menstrual cycle are in 124 persons(28.51%), the others who have severe premature menstruation or late menstruation more than one time for 4-7 months are in 311 Persons.(71.49%) 2. Menstrual duration and amount 1) Persons who have normal menstrual amount we in 66-89%, hypermenorrhea is in 1-11%, hypomenorrhea is in 5-21%. 2) In the study of menstrual duration, persons more than one thirds are irregular in thier menstrual amount every menstruation. 3) In the study of MMQ, persons who are irregular in thier menstrual amount every menstruation are in 125persons.(29.76%) 3. Menstrual pain 1) Persons who have slight menstrual pain are in 289 persons(65.98%), the middle is in 86 persons(19.63%) the severe is in 34 persons(7.76%) by MMP. 2) Persons who are irregular in thier menstrual pain every menstruation are in 145 persons.(33.11%) Conclusion : In menstrual cycle, there are more persons who have irregular menstrual cycle than normal.(71.49%) In menstrual duration and amount, more persons have normal menstrual amount.(66-89%) In menstrual pain, persons who have slight menstrual pain are the most.(65.98%)

• 한국건설관리학회논문집
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• 제20권4호
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• pp.104-113
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• 2019

공기연장과 관련한 분쟁은 해당 이슈들이 공기에 얼마나 영향을 미치는지에 대해 공기를 분석하고 법원과 같이 제3자의 판단을 돕기 위한 근거로 제출하는 특징이 있다. 하지만 대다수의 국내현장은 분석에 필요한 기초자료가 부재하거나, 분쟁 발생 이후 자료를 수집하는 등 대응을 위한 합리적인 업무 및 입증 방안의 프로세스가 정립되지 않아 공기연장에 따른 손실을 증명하는데 어려움이 있다. 따라서 본 연구는 공기연장 분쟁 시 입증의 수단인 공기분석에 필요한 정보를 수집, 정리하고 업무 프로세스를 제시함으로써 합리적인 처리지원 및 관리 효율성을 향상하고자 하였다. 제안된 프로세스를 사용하여 실제 공기연장 분쟁에 적용 검증한 결과, 프로세스 적용현장이 미적용 현장에 비해 실무자는 약 33%, 계약담당자는 약 46%, 법률자문가는 약 48% 더 높은 만족도를 나타냈으며 91%의 동일한 매트릭스 비교 결과가 나타났다. 본 연구를 통해 공기연장 분쟁에서 근거로 사용되는 공사기간 분석 업무의 효율화를 도모할 수 있을 것으로 판단되며, 향후 프로세스를 활용한 시스템 설계연구가 지속되어야 할 것으로 보인다.

• 한국의류학회지
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• 제27권8호
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• pp.992-1003
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• 2003

This study analyzes the actual state of the working uniforms worn by burning waste workers to protect their body from the hazardous environment. Directions for improvement of the clothing fabrics is also suggested. We visited and interviewed those persons who worked in the burning waste plant in Seoul and in Gyunggi Province. 245 workers were surveyed by questionnaires, and 211 workers out of 245 were statistically analyzed. Frequencies and percentages were calculated and $\chi$$^2$ test, ANOVA and Scheffe Post hoc comparison methods were utilized to test some hypothesis. The working uniforms were classified as four general types: separate type, disposable-coverall. overall, and winter clothes. At present, the working uniforms are not suitable for the conditions which they are used. There is a lack of ventilation and an inability to absorb perspiration limited elasticity, and the uniforms are prone to static shock. The degree of satisfaction varied significantly, based on the worker's educational background and main work. However, only a small percentage of workers interviewed were satisfied with the appearance and the fit of the present working uniforms. The working duration had a negative impact on the satisfaction of the worker. This results suggest that materials, colors, design and size of working clothes must be improved. The suggestions are as follows: Firstly. to use disposable non-woven fabrics finished to increase moisture regain. Secondly. to use the bad air permeability fabrics to protect the skin from absorbtion of harmful gases, flying dust, heavy metals, etc.