• Nuclear Engineering and Technology
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• 제54권2호
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• pp.442-448
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• 2022

Intermediate-level radioactive waste (ILW) is not subject to legal approval for cave disposal in Korea. To solve this problem, a spent resin treatment device that separates ¹⁴C-containing resin from zeolite/activated carbon and desorbs ¹⁴C through a microwave device has been developed. In this study, we evaluated the radiological safety of the operators performing repair work in the event of a failure in such a device treating 1 ton of spent resin mixture per day. Based on the safety evaluation results, it is possible to formulate a design plan that can ensure the safety of workers while developing a commercialized device. When each component of the resin treatment device can be repaired from the outside, the maximum and minimum allowable repair times are calculated as 263.2 h and 27.7 h for the ¹⁴C-detached resin storage tank and zeolite/activated carbon storage tank, respectively. For at least 6 h per quarter, the worker's annual dose limit remains within 50 mSv/year; further, over 5 years, it remained within 100 mSv. At least 6 h of repair time per quarter is considered, under conservative conditions, to verify the radiological safety of the worker during repair work within that time.

• Journal of Acupuncture Research
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• 제24권5호
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• pp.207-217
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• 2007

Objectives: We investigated the safty of distilled Astragali Radix Herbal Acupuncture, Wild Ginseng Herbal Acupuncture and Rehmannia glutinosa Herbal Acupuncture on vital sign -BP, pulse, resperation-in adult man. Methods : We investigated on 106 healthy volunteers consisted of each 30 subjects in experiment (distilled Astragali Radix Herbal Acupuncture, Wild Ginseng Herbal Acupuncture and Rehmannia glutinosa Herbal Acupuncture) group and 30 subjects in control(Normal Saline) group. Study form was a randomized, placebo-controlled, double-blind clinical trial. 30 subjects in each experiment group were injected distilled Astragali Radix Herbal Acupuncture, Wild Ginseng Herbal Acupuncture, Rehmannia glutinosa Herbal Acupuncture at $GB_{21}$(Kyonjong) and 30 subjects in control group were injected Normal Saline at $GB_{21}$ (Kyonjong). except of 2 subjects(in control group) who can't be measured and 10 subjects(6 in experiment group and 4 in control group) who move or make unforceable error during measuring. Finally each 25. subject, subject, subject in experiment group and 24 subject in control group are studied. We measured resperation by PolyG-I and BP & pulse by electric manometer on 5 times : before injection per 5 minutes during and after injection per 10 minutes during 35 minutes. The SPSS 13.0 for windows was used to analyze the data and the Student t test(between two groups) were used to verify the result. Results : 1. After distilled Astragali Radix Herbal Acupuncture injection, Wild Ginseng Herbal Acupuncture and Rehmannia glutinosa Herbal Acupuncture , systolic BP is not significantly change in all experiment time. 2. After distilled Astragali Radix Herbal Acupuncture injection, Wild Ginseng Herbal Acupuncture and Rehmannia glutinosa Herbal Acupuncture , diastolic BP is not significantly change in all experiment time. 3. After distilled Astragali Radix Herbal Acupuncture injection, Wild Ginseng Herbal Acupuncture and Rehmannia glutinosa Herbal Acupuncture , pulse is not significantly change in all experiment time. 4. After distilled Astragali Radix Herbal Acupuncture injection, Wild Ginseng Herbal Acupuncture and Rehmannia glutinosa Herbal Acupuncture , resperation is not significantly change in all experiment time. Conclusions : The results suggest that distilled Astragali Radix Herbal Acupuncture, Wild Ginseng Herbal Acupuncture and Rehmannia glutinosa Herbal Acupuncture in healthy adult man don't influence vital sign within normal range. This result is derived from that distilled Astragali Radix Herbal Acupuncture, Wild Ginseng Herbal Acupuncture and Rehmannia glutinosa Herbal Acupuncture in healthy adult man are safety.

• 정보교육학회논문지
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• 제25권2호
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• pp.227-237
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• 2021

본 연구에서는 초등학교에서 정보 교과 신설의 필요성과 운영 방향을 알아보고자 초등학교 교사를 대상으로 설문조사를 실시하였다. 그 결과, 차기 초등학교 교육과정에서 ICT 소양교육 및 SW·AI 교육을 위해 정보교육의 수업 시수 확대할 필요가 있다는 의견이 매우 높게 나타났고 차기 초등학교 교육과정에서 ICT 소양교육 및 SW·AI 교육을 위해 정보교과 신설이 필요하다는 의견이 매우 높게 나타났으며, 정보 교과 신설이 어려울 경우라면 학교장 재량 시간을 활용해 자율과목으로의 편성할 필요가 있다는 의견도 매우 높게 나타났다. 이와 같은 분석 결과에 비추어볼 때 차기 초등학교 교육과정에서는 ICT 소양교육 및 SW·AI 교육을 위해 정보교과를 신설할 필요가 있으며 만약 신설이 어렵다고 하더라도 배우기를 희망하는 학생들을 위하여 자율과목 형태로 운영할 수 있는 방안을 마련할 필요가 있다. 그리고 수업시수는 3학년이상에서 적어도 주당 1시간이나 2시간 정도가 확보되어야할 것으로 판단된다.

• 수산해양기술연구
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• 제50권3호
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• pp.326-333
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• 2014

This study was conducted to investigate the fishing efficiency of an improved LED fishing lamp for squids. A total of 31 fishing operations were carried out with six-crew commercial fishing vessel Haengbok-Ho (24 tons) on which 43.2kW LED was installed, along with 14 automatic jigging machines, from October 6 to November 16, 2012. The 19 fishing vessels with Haengbok-Ho were compared with a control subject was 24 tons or 29 tons. A total illuminating power of metal halide (MH) fishing lamps in the control fishing vessel was either 84kW or 120kW. The number of automatic jigging machines in the control vessels was 8-18 and the number of crews engaged for fishing operation was 3-13. Average fuel consumption of LED fishing vessels during fishing operation was 505.1l which led to an average fuel consumption of 42.7l per hour. LED fishing vessel and MH fishing vessel caught on an average 1,946 squids and 2,439 squids, respectively, during the study period. Crews (hand line and hand reel) caught about 2.2 times the automatic jigging machines for LED fishing vessel and about 2.1 times for MH fishing vessel. Meanwhile, catches by the fishing vessels with LED in the combined total number per one line of automatic jigging machine and per crew were 86.6% of that of the control fishing vessel with MH. Also, fishing vessels with LED per automatic jigging machine achieved 71.8% of catches of that with MH fishing lamp. The catches of squids per the fishing vessel with 1W LED fishing lamp were higher by more than 135.5% of that in the fishing vessel with MH, which showed a good fishing performance even with only the use of a LED fishing lamp.

• 정보교육학회논문지
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• 제5권1호
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• pp.1-13
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• 2001

초등학교 학생들에게 컴퓨터를 지도할 때 일반적으로 컴퓨터의 기능만 가르치므로 인성 교육 부재, 창의력 제한, 자기 주도적 학습 능력 부족 등 여러 가지 문제점이 발생한다. 이러한 문제점을 해결하기 위해 컴퓨터의 기능을 공부하면서 인성과 창의력을 기를 수 있고, 교육과정 내용을 익힐 수 있는 주제 통합 교재의 개발이 필요하다. 주제통합교재는 기능교육을 위해 교육과정을 접목하는 방법과 교육과정의 문제를 해결하기 위한 도구로 기능을 익히는 방법이 있다. 이에 맞추어 전자는 운영체제인 '윈도우 98'의 내용을 주제별로 나누어 각 주제에 맞는 인성 요소, 창의적인 요소, 그리고 교육과정 내용을 추출하여 구성을 하고, 후자는 '한글97'을 내용으로 교육과정에서 주제를 추출하여 '한글97'로 해결하는 과정으로 구성하였다. 또한 웹의 동적인 특징을 살려 상호작용이 가능한 주제 통합 교재를 개발함으로써 웹만이 갖고 있는 장점을 살려 학습할 수 있게 하였다.

• 보험의학회지
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• 제2권1호
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• pp.101-115
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• 1985

In Med Dept. Daehan Education Insurance, Total 690 cases(male 376 cases, female 314 cases) were inspected to study the change of serum lipid value. The objects of investigation were total cholesterol, HDL cholesterol, triglyceride, phospholipid and total lipid value. The results are as follows: 1) In the normal subjects, with the relation of serum lipid value and the age. triglyceride, phospholipid and total lipid value showed the increasing tendency by 70 age, but total cholesterol value and HDL cholesterol value showed the increasing tendency by 59 age and the decreasing tendency after 59 age. 2) In the normal subject the difference of serum lipid value between sexes did not make the significant difference of level statistically in all items which can be inspected. 3) The weight change and serum lipid value are very significantly related. Total cholesterol, HDL cholesterol and total lipid value are high in female if the weight is light. But they are high in male the weight is heavy phospholipid value is opposite to the above result. Triglyceride value is high in male regardless the weight, but the significant difference happened in the high weight group. 4) As serum lipid value of hypertension patients is compared with that of the normal subjects, HDL cholesterol, triglyceride, phospholipid and total lipid value are significantly high. 5) The doubtful group of the fatty infittration of liver among the hypertension pafients have very significant difference in serum lipid value compared with not only the value of the normal subject but also that of the obesity group. 6) The doubtless group of the fatty infitration of liver among the hypertension patients have the significant difference in all serum lipid value compared with that of the normal subject, but compared with the obesity group males had the significant difference of HDL cholesterol value and both sexes had the significant difference in total lipid value, but had no significant difference in total cholesterol, triglyceride and phosprolipid value. 7) The ratio of total cholesterol per HDL cholesterol had the significant difference in the doubtful hypertension patients of the fatty infittration of liver and the relative weight, but it had no significant difference compared with the normal subject in the doubtless hypertension patients.

• 한국의류학회지
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• 제35권5호
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• pp.612-620
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• 2011

This study provides information and suggest a direction for the future research needs of medical attire as a high value-added industry. A total of 69 studies on medical attire were categorized and analyzed for the study subject, study method, and study locations. As per the time period, until the mid-80s, almost no research on medical attire was conducted; however, the number has increased as of late. The distribution by subject was in the order of status investigation, design development, material research, textile design, and sizing system, and especially there was significant focus on wearing status and design development that has rapidly increased over the last 10 years. The distribution by target was in the order of adult patients, elderly patients, doctors, nurses, and juvenile patients. There are many studies on the wearing status and design development of adult patient attire as well as on the textile design and sizing system study for doctor's attire. The distribution by study method was in the order of survey and interview, research and development, dressing evaluation, real resources analysis, and physical property experiments. Through the results of the analysis on the study subject and target, it was found that the wearing status investigation for adult patient attire through a survey and interview was most active. The distribution by study location was in the order of Seoul, Incheon - Gyeonggi, Busan - Ulsan - Gyeongnam, and suggested that a study on patient attire in Dajeon - Chungcheong and Jeonbuk was inadequate.

• 한국초등과학교육학회지:초등과학교육
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• 제28권1호
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• pp.55-66
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• 2009

The purpose of this study is to assist understanding the integrated subjects and to obtain implications required on the actual operation of curriculum by analyzing content elements and basic inquiry activities in the revised "wise lift" curriculum 2007. The result of this study is as follows. First, the formation of elements in contents of "wise life" deals with the passage of time based on changing seasons, myself and family in the 1st grade and the concept of space based on home and a village in the 2nd grade. Six main subjects and twelve activity subjects are presented per each grade. Second, number of activity subjects and content elements are reduced as compared with 7th curriculum so that the responsibility of operating classes based on activities is reduced and the purpose of rationalizing contents is somewhat fulfilled. Third, eliminating a relevant domains decisively when presenting the activity subjects assures the identification and purpose as the integrated subject focused on inquiry activities. Fourth, the result of analyzing the course-relevance on content elements shows that the allotment per each domain and course is less considered but the relevance of social studies is higher regardless of non-course characteristics as the integrated subject. Fifth, according to the component ratio of basic inquiry activities, 'Observing' and 'Debating' were presented as the most essential activities, and 'Measuring' and 'Making' were relatively low. By considering characteristics of course requiring balanced and various experiences of inquiry activities, additional discussions are required on appropriateness of the component ratio. Sixth, 'Observing' was increased and 'Debating' and 'Making' were decreased on the main activities in this revised curriculum as compared with 7th curriculum.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.348-348
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• 2017

This experiment was conducted to investigate the aspect of tiller occurrence, growth and yield of sorghum according to planting density and sowing date. The subject of this experiment is to supply basic data to inhibit non-productive tillers uneconomical and cumbersome for mechanical harvesting. Also another subject was to evaluate optimum planting density and sowing date in central district area. Total number of tillers was more in 80cm ridge than 60cm ridge and it was increased as the planting distance was wider from 15cm to 30cm on the each ridge. Ratio of effective tillers was higher in 60cm ridge than 80cm ridge and it was decreased as planting distance was wider from 15cm to 30cm. The lower the planting density, the more increased total number of tillers, whereas effective tillers were decreased as planting density was high. Average of total number of tillers of three varieties was higher in sowing date of 2 May (1st sowing date), whereas ratio of effective tillers was the highest in sowing date of 23 May (2nd sowing date). Hwanggeumchal showed the highest total number of tillers (1.2 tillers), while Moktaksusu had the lowest total number of tillers (0.8 tillers) among three varieties. There were no significant difference between planting density and days to heading and ripening date from seeding. Culm length increased as planting density was high, but ear length, grains per ear and 1000 grain weight were decreased on the other hand. The highest yield of sorghum per 10a was obtained from $60{\times}20cm$ planting density among 6 planting densities.

• 국제물리치료학회지
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• 제5권1호
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• pp.652-660
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• 2014

In the present study, to examine the effects of somatosensory stimulation of the hands on the hand functions and visuomotor coordination of children with developmental disabilities, a total of 24 sessions of experiments were conducted with three children with developmental disabilities for 60 minutes per session, three sessions per week from January 7, 2013 to March 11, 2013. To examine the effects of somatosensory stimulation of the hands on grasping and visuomotor coordination which are sub-areas of PDMS-2, the A-B study design was used which is a single case study method out of single-subject experimental research designs. Somatosensory stimulation of the hands was shown to be effective in improving the hand functions of children with developmental disabilities. Somatosensory stimulation of the hands showed positive effects on the raw scores and standardized scores of grasping and visuomotor coordination in all the three subject children. Visuomotor coordination functions showed higher scores in post-hoc tests in all three children. In particular, ring throws showed high scores at right $90^{\circ}$, right $45^{\circ}$, center, left $45^{\circ}$, and left $90^{\circ}$ among visual directions. In the present study conducted with children with developmental disabilities, ring throws were performed to examine visuomotor coordination. In particular, the numbers of successes of ring throws on the front, left, and right were shown to be high. Therefore, somatosensory stimulation of the hands was effective on the hand functions and visuomotor coordination functions of children with developmental disabilities.