The purpose of this study is to provide basic materials helpful for Taekwondo education for elementary school students by exploring influences of Taekwondo practice for elementary school students on emotional development. The subjects were 384 students in

The purpose of this thesis is to examine what changes students experience in the relationships between achievement-goal orientations and enjoyment of physical activities after they are instructed at youth soccer academies. This information would be useful

This study represented all active members of <W social baseball league>, an inter-social baseball league in Seoul, by collectively taking 284 social baseball participants as a sample population. This study first measured the partipation motivation for soc

The purpose of this study was to provide guiding information in order to invigorate after-school physical education programs, make middle school students aware of importance of physical activities in adolescence and induce the participation in after-schoo

현재 저온유통만 허가되어 있으며 저장유통기간이 짧은 게맛어묵에 레토르트 살균기술과 반응표면분석 법을 도입하여 기존의 풍미나 품질에 손상됨 없이 상온유통과 장기저장이 가능한 게맛어묵을 제조하기 위하여 가열살균기술의 최적화 조건을 구명하였고, 본 레토르트 살균처리가 게맛어묵의 품질특성에 미치 는 영향에 대하여 검토하였다. 반응표면분석의 독립변수는 살균량 (F0-value)과 가열온도로 하였으며, 이 들의 영향을 받는 가열살균 후의 품질인자, 즉 종속변수는 전단력, 백색도 및 관능적 조직감으로 나타내 었다. 레토르트 살균이 게맛어묵의 품질 및 전반적인 식품성분의 변화에 미치는 영향을 검토한 결과, F0-value 5분 이하의 가열살균에서는 F0-value보다는 가열온도가 게맛어묵의 품질 변화에 미치는 영향 이 큰 것으로 나타났으며, F0-value 2.6분 이상으로 가열살균할 경우 게맛어묵의 무균성이 확인되었다. 반응표면분석 program으로 설정한 레토르트 게맛어묵의 최적 가열살균조건은 전단력의 경우 가열온도는 115.7℃, F0-value 3.3분, 백색도는 가열온도 116.1℃, F0-value 3.8분, 그리고 관능적 조직감의 최대화 조건은 가열온도 115.8℃, F0-value 3.3분이었고, 이 3가지 품질요소를 모두 고려한 multiple response optimization 반응조건은 가열온도 117.5℃, F0-value는 3.3분이었다.

지난 60년간 급속한 항만 개발로 인하여 다량의 해도가 여러 종류의 축척 및 구역으로 제작되어 인접구역이 효과적 으로 연결되지 못하거나 과도한 중첩 구역이 발생하는 경우가 있으며 무리한 제분도의 사용으로 이용자에게 혼란 및 불편을 야기하고 있는 실정이다. 이 연구의 목적은 기존해도 구역 및 축척별 분석을 통하여 새로운 해도구역 조정안을 제시하는데 있 으며 이를 통해 항해 편의를 제공하는데 있다. 합리적인 해도구역 조정을 위하여 연구진이 전문가 의견법을 통하여 개정안을 마련한 후 이용자를 대상으로 한 설문조사 및 도선구역별 도선사 협회의 의견 수렴 등을 통하여 그 타당성을 검증받고 의견을 수렴하여 보완하였다

Odorous compounds emitted from the melting process for material recycling of plastic have an effect on the sensory annoyance to the nearby residents. The objective of this study was to investigate emission characteristics of malodor in the domestic plastic recycling plants. The olfactometric results showed that the odor concentration among the surveyed plants were significantly different, depending on the melting temperature and material sources. The higher melting temperature led to the higher odor concentration. In particular, as for a plant where melting temperature was 320℃, the odor concentration exceeded 100,000 dilution ratio. However, as the temperature was reduced, the odor emission decreased gradually. This result indicates that reduction of the melting temperature is effective measure to decrease the emission of odor compounds. Quantitative and qualitative analysis of odorous compounds showed that regulatory odor substances such as sulfur compounds, aldehydes and VOCs were found with high concentration in the exhausted gases. Liquid tar in the exhausted gases makes it difficult to remove odorous compounds with traditional odor control devices. In order to eliminate both odorous compounds and liquid tar effectively, a combustion method is strongly recommended in these plants.

This research is a study on the influence of teacher's degree on physical education that have on the positive and negative emotion of his/her students, in order to provide information that would be a reference guide for the operation of elementary level p

This study intendeds to handle “Understanding about Dance class in the curriculums, and its operational cases”, and to suggest “Future Dance class”. To achieve the goal, six women P.E. teachers in Seoul and KyungSangNam-Do were asked to participate in the

The purpose of study proffer the proper teaching method of sports club and the orientation and the based data for the education of the trait hunanity and the school sports club programs in elementary students, as searching the relations of the participati

In the following study golf putting routine will be examined to see how it affects individual middle school students. The research will be conducted using qualitative techniques demonstrate how serve routine training affects the performance of middle scho

To produce alloy powders with only SmFe single phase by reduction-diffusion (R-D) method, the effect of excess samarium oxide on the preparation of Sm-Fe alloy powder during R-D heat treatment was studied. The quantity of samarium oxide was varied from 5% to 50% whereas iron and calcium were taken 0% and 200% in excess of chemical equivalent, respectively. The pellet type mixture of samarium, iron powders and calcium granulars was subjected to heat treatment at 1100 for 5 hours. The R-D treated pellet was moved into deionized water and agitated to separate Sm-Fe alloy powders. After washing them in deionized water several times, the powders were washed with acetic acid to remove the undesired reaction products such as CaO. By these washing and acid cleaning treatment, only 0.03 wt% calcium remained in Sm-Fe alloy powders. It was also confirmed that the content of unreacted -Fe in SmFe matrix gradually decreased as the percentage of samarium oxide is increased. However, there was no significant change above 40% excess samarium oxide.

This study was performed to investigate the status of using agricultural information and develope desirable strategy to offer agricultural information for leaf vegetables farmers.187 farmers are surveyed to collect data. Many farmers get agricultural information through various channel.They satisfied with agricultural information contents, rightness of time but dissatisfied with the easiness of gain, fitness of information relatively. And the mean score of farmer's information needs on agricultural information were higher than that of theoretical mean. relatively high items were new seed information, technology of cultivation, pesticide purchase and prevention, laborer finding, consumer information, the trend of leaf vegetables price, marketing place, government's agricultural policy and laws etc.To make farmers get information easily, we recommend to gather information at one place and provide them on internet portal site composed with information related for paddy rice farmers. To make desirable information service system, farmers should bring up their internet searching ability, and agricultural extension officers in count/city have to make effort to provide useful information more often by various communication methods such as visiting farmers, using internet or e-mail service, pamphlet, and so on.

The compaction response of nano powders with an addition of Ti powders prepared by magnetic pulsed compaction and subsequent sintering processes was investigated. All kinds of different bulk exhibited an average shrinkage of about 12% for different MPCed pressure and sintering temperature, which were approximately 50% lower than those fabricated by general process (20%) and a maximum density of around 92.7% was obtained for 0.8GPa MPCed pressure and sintering temperature. The addition of Ti powder induced an increase in the formability and hardness of the sintered . But the lower densities were obtained on sintering with addition of over 10 (wt%) Ti powder due to generation of crack during sintering. Subsequently it was verified that the optimum compaction pressure in MPC and sintering temperature were 0.8GPa and , respectively

쇠고기의 저장 중 발생되는 부패취를 특수 관능기법인 R-index를 적용하여 부패취 검지분석을 하고, Pseudomonas의 증식과 비교분석 하였다. 패널에게 사전훈련을 통하여 signal reference(37oC, 48시간 동안 저장한 쇠고기)과 noise reference(-2oC, 저장 시간이 없는 신선한 쇠고기)를 구별이 가능하도록 하였다. Stimuli samples(저장 온도 및 시간 별 쇠고기)와 noise reference를 같이 제공하여 부패취 발생 여부의 확신도에 따라 4가지 구간(signal sure(S), signal unsure(S?), noise unsure(N?), noise sure(N))으로 평가하게 하도록 하였다. 상온인 25oC 저장과 냉장 온도인 5oC의 두 가지 시료 모두 저장 시간이 증가함에 따라 R-index가 증가하였다. 25oC의 경우 저장 36시간까지 급격한 변화를 보이다가 36시간 이후 완만한 변화를 보였으며, 5oC는 전구간 매우 완만하게 점차적으로 변화하였다. 패널 개인별 Rindex가 유의수준 α=0.05 및 α=0.01에서의 경계점을 넘는 시점인 부패취 발생 검지시간을 구하였다. 부패취 발생 검지시간은 α=0.05의 경우 25oC에서 30.92±3.47시간, 5oC에서 169.80±11.27시간, α=0.01의 경우는 25oC에서 34.80±4.01시간, 5oC에서 176.41±9.89시간으로 산출되었다. 부패취가 발생되었다고 검지된 저장 시간의 Pesudomonas의 수는 저장 온도별 차이가 있었고, 부패하였다고 판단되는 6-7 log CFU/g에 근접한 수치였다. 이는 미생물이 쇠고기의 부패취 발생의 기여도는 있지만, 그 밖에 유통환경의 오염, 지방의 산패, 내인성 효소 등의 요인도 부패취 발생에 기여한다는 것을 시사한다.

주5일 근무제가 확대되어 국민의 여가시간이 증가되고 소득수준이 향상됨에 따라 해양레저스포츠에 대한 국민들의 관심이 높아가고 있다. 지자체들도 전시회, 국제요트대회 등을 경쟁적으로 개최하고 대규모 투자를 추진하고 있다. 그러나 우리나라는 선진국의 수요패턴과 달리 수요가 크게 늘어나지 않고 있다. 그동안 해양레저스포츠의 활성화를 위하여 스포츠관점에서는 많은 연구가 이루어졌으나 산업적 관점에서 산업환경 요인에 대한 연구는 미미한 실정이다. 본 연구에서는 해양레저스포츠산업에 영향을 미치는 경제적, 사회적 환경 등 환경요인을 고찰한다. 이를 위해 해양레저스포츠산업을 둘러싸고 있는 산업환경 요인을 해양레저스포츠산업의 주요성장 지표인 인구 천명당 레저보트(요트 모타보트) 보유척수와의 상관관계로 분석하였다. 마지막으로 선진국과의 해양레저스포츠산업 환경요인을 비교분석하여 우리나라 해양레저스포츠산업의 발전을 위한 방향을 제시하고자 한다.

The purpose of this study was to know the correlation between the level of participating in badminton community activity - the period of participation, the intensity of participation, and the numbers of participation - and the sports addiction and eventua