• 한국초지조사료학회지
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• 제40권1호
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• pp.37-43
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• 2020

This study was conducted to evaluate the effects of different nitrogen levels on the yield and nutrient quality of a newly developed domestic hybrid of Teosinte, Geukdong 6〔Zea mays L. subsp. mexicana (Schrad.) H. H. Iltis〕. The field experiment was conducted in a randomized block design with three replicates and consisted of four nitrogen (N) application rates, T1 (200 kg/ha), T2 (300 kg/ha), T3 (400 kg/ha), and T4 (500 kg/ha). No differences were found in plant length, leaf length, leaf width, leaf number, dead leaves, stem hardness, tiller number, and fresh yield (p>0.05). The T3 showed significantly greater dry matter yield at harvest (heading stage) compared to the other treatments (p<0.05). The crude protein content of T4 (10.49%) was higher than those of T1 and T2 (p<0.05). However, there was no significant difference between T4 (10.49%) and T3 (9.63%). The effects on crude fat, crude ash, neutral detergent fiber (NDF), acid detergent fiber (ADF), and crude fiber were not significant (p>0.05). The sugar content was higher in the T2 treatment than the other treatments (p<0.05). For Ca, T3 showed significantly greater content (p<0.05). However, no significant effects were found in the contents of Cu, Fe, K, Mg, Mn, Mo, and Zn (p>0.05). Na content was higher in order of T2 > T4 > T3 > T1 (p<0.05). Total mineral contents were not significantly different among the treatments (p>0.05). Given these results, we recommend the amount of nitrogen fertilization necessary for "Geukdong 6" to be around 400 kg per ha (T3), when considering, high fresh yield, dry matter yield, number of leaves and content of crude protein.

• 한국초지조사료학회지
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• 제36권2호
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• pp.150-158
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• 2016

본 연구는 최근 개발되어 국내에 보급하고 있는 Teosinte 품종인 극동 6호의 생육특성, 수량성 및 사료가치를 평가하여, Teosinte 신품종 재배 및 이용을 위한 기초자료로 활용하고자 실시하였다. 실험설계는 옥수수(T1)와 수수${\times}$수단그라스 교잡종(T2)을 대조구로 하고 Teosinte 신품종인 극동 6호(T3)를 처리구로 한, 3처리 3반복 난괴법으로 배치하여 실시하였다. 초장은 T2구가 가장 높게 나타났으며(p<0.05), 엽폭, 엽수, 경의 굵기, 경경도, 건물수량은 T1구가 가장 높게 나타났다(p<0.05), 그리고 엽장, 분얼수, 생초수량은 T3구가 높게 나타났다(p<0.05). 조단백질과 조회분은 T3구가 가장 높게 나타났으며(p<0.05), 조지방은 T1구가 가장 높았으며(p<0.05), ADF와 NDF에서는 T2구가 가장 높게 나타났다(p<0.05). Brix degree를 비롯하여 Fructose, Glucose, Dextran, Isomerose, Inverted sugar와 같은 당 종류별 함량에 있어서는 T2 > T3 > T1구 순으로 높게 나타났다(p<0.05). 총 무기물 함량은 T3 > T2 > T1구 순으로 높게 나타났다(p<0.05). 사일리지에 있어서 pH는 T1구가 3.82로 가장 높았으며 lactate 함량은 T3 > T2 > T1구 순으로 높게 나타났다(p<0.05). 청예작물에 대한 기호성은 한우에서는 T1 > T3 > T2구 순으로 나타났고, 꽃사슴에서는 T3 > T1 > T2구 순으로 나타났으며 재래염소에서는 T1 > T2 > T3구 순으로 높게 나타났다. 그러고 사일리지를 제조하여 급여시 기호성을 보게 되면 한우, 꽃사슴, 재래염소에서 T1 > T3 > T2구 순으로 높게 나타났다. 이상의 결과를 종합해 볼 때 Teosinte 신품종인 극동 6호는 대조 작물에 비하여 경이 부드럽고, 엽수가 많아 단백질 함량이 높았지만, 기호성은 사일리지용 옥수수 보다는 떨어지고, 수수${\times}$수단그라스 교잡종 보다는 높은 특징을 가지고 있다. 특히 높은 수분함량으로 인하여 건물수량은 적지만 생초 수량이 높아 청예용으로 유리한 작물로 생각 된다. 그러나 Teosinte 신품종인 극동 6호에 대한 파종시기, 재식밀도, 비료량 및 수확시기 등에 체계적인 재배 방법에 대한 규명이 이루어진 후 Teosinte 신품종인 극동 6호에 대한 정확한 평가가 이루어지는 것이 바람직할 것이다.

• 한국초지조사료학회지
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• 제42권3호
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• pp.162-168
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• 2022

This study was carried out to investigate the effects of planting densities on the growth characteristics, dry matter yield, and feed value of "Geukdong 6" (a new variety of corn for feed). The experimental design was arranged in a randomized block design with three replications. Treatments consisted of six planting densities, 60 cm × 25 cm (T1), 60 cm × 30 cm (T2), 70 cm × 25 cm (T3), 70 cm × 30 cm (T4), 80 cm × 25 cm (T5) and 80 cm × 30 cm (T6). All treatments were sown on May 14, 2021, and the harvest was on October 3 (late flowering). Plant length and the number of tillers were the highest in T5 (p<0.05), but the number of leaves and stem diameter were the highest in T6 than in the other treatments (p<0.05). Leaf length, leaf width, and dead leaf were not significantly different among the treatments. Organic matter was highest in T6, and crude protein was highest in T5 (p<0.05). The ether extract was not significantly different among the treatments. Crude fiber, NDF, and ADF were highest in T2 with relatively higher planting density (p<0.05). Calcium and phosphorus were not significantly different among the treatments. TDN content was the highest in T3 (p<0.05). Sugar degree (Brix), fructose, glucose, dextran, isomerose, and inverted sugar were not significantly different among the treatment. Fresh yield, dry matter yield and TDN yield were higher in order of T6 > T5 > T4 > T3 > T2 > T1 (p<0.05). Relatively feed value was higher in order of T3 > T6 > T5 > T1 > T4 > T2 (p<0.05). Based on the above results, planting density could be recommended from 80 cm × 30 cm for efficient production of "Geukdong 6".

• The Journal of Korean Physical Therapy
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• 제15권1호
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• pp.185-195
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• 2003

This study was performed to investigate the effects on the general features of low back pain. The study subjects were low back pain patients treated with physical therapy at general hospitals located in Gyeonggi-do from August 2, 2000 to September 10. Total number of distributed questionnaires were 300, and 281 questionnaires were collected and analysed finally. The results were follows: 1. 76.3$\%$ of male answers that participate in sports, 60.6$\%$ of female answers that participate in sports and there are significant differences of two group(p < 0.01). 2. In case of male, preferential sports were running, tennis, golf, the others, but in case of female, preferential sports were walking, ascent of a mountain, swimming(p < 0.01). 3. In case of male, the most frequency preferred to participate in sports by patients was 30minutes daily, but in case of female, 3 times a week(p < 0.05). 4. The onset time of low back pain was 28.3$\%$ in the morning, 23.7$\%$ in the afternoon, 23.2$\%$ in motion according. 5. The onset conditions of low back pain was 48.5% during exercise, 44.4$\%$ after exercise. 6. Regardless of gender, low back pain patients want to go to a hospital for treatment. Otherwise, male preferred conventional treatment than a hospital, but female preferred a hospital than conventional treatment(p < 0.05). 7. Regardless of gender, 97.5$\%$ of patients is answered that the most preferential treatment method was physical therapy, 8. 92.2$\%$ of patients is answered that physical therapy was effective.

• 한국초지조사료학회지
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• 제39권1호
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• pp.9-16
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• 2019

본 연구는 최근 개발되어 국내에 보급하고 있는 Teosinte [Zea mays L. subsp. mexicana (Schrad.) H. H. Iltis] 품종인 극동 6호의 파종시기가 생육특성, 수량성 및 사료가치에 미치는 영향을 평가하기 위하여 실시하였다. 파종 시기는 각각 5월 10일(T1), 5월 25일(T2), 6월 10일(T3), 6월 25일(T4) 및 7월 10일(T5)로 하고 수확은 10월 22일 동일 날짜에 하였다. 따라서 재배기간은 T1, T2, T3, T4 및 T5구가 각각 164, 149, 134, 119, 103일로 난괴법 5처리 3반복으로 실시하였다. 초장과 고사엽은 T1구에서(p<0.05), 엽폭과 엽수는 T2구에서 유의적으로 높게 나타났다(p<0.05). 그러나 엽장, 경의 굵기 및 분얼수는 처리 간 유의적인 차이를 보이지 않았다. 경경도는 T1(2.0)> T2(1.9) > T3, T4(1.7) > T5($1.2kg/cm^2$) 순으로 높게 나타났다(p<0.05). 생초 및 건물수량은 파종시기가 빠르고 재배 기간이 길었던 T1 > T2 > T3 > T4 > T5 순으로 높게 나타났다(p<0.05). 조단백질, 조지방 및 TDN 함량은 T5가 다른 구에 비하여 유의적으로 높게 나타났다(p<0.05). 그러나 ADF 및 NDF 함량은 T1구에서 높게 나타났다 (p<0.05). 조단백질 수량은 T1, T2 및 T3구 사이에는 유의적인 차이가 없었지만, T4 및 T5구에서는 유의적으로 낮게 나타났다(p<0.05). TDN 수량은 T1 > T2 > T3 > T4 > T5구 순으로 높게 나타났다(p<0.05). 그러나 사료가치는 T5 > T4 > T3 >T2 > T1 구 순으로, 파종시기가 늦고 재배기간이 짧을수록 유의적으로 높게 나타났다(p<0.05). 당 성분들에 있어서는 당도, Fructose, Glucose, Isomerose, Inverted sugar 성분에서는 처리 간에 유의적인 차이가 없었다. 그러나 Dextran 성분은 T5구에서 만유의적으로 낮은 수치를 보였다. 이상의 결과를 종합해 볼 때, 극동 6호의 파종 시기는 5월 상순에서 하순사이에 파종하여 약 150일 이상 재배한 후 수확하는 것이 건물수량과 영양수량 생산에 유리한 것으로 판단된다.

• 한국생활과학회지
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• 제14권1호
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• pp.47-57
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• 2005

We conducted a content analysis of the researches published for a 7-year period (1997-2003) in the Korean Journal of Play Therapy (Korean Association for Play Therapy) and The Journal of Play Therapy (Korean Association of Psychological Rehabilitation for Children). Specifically, we analyzed a total of 156 articles for research contents, instruments, subjects, statistical analytic methods, and references. The results of the study are as follows: First, the principal areas of research activity and publication were specific theoretical review, personality, and adjustment research. Most outcomes, processes, and outcome researches were conducted in a form of case study. Second, typical samples contained 4 to 6 year old children or elementary schoolers. A lot of them were counseling center clients or normally adapted children. Third, 37% of the articles used ANOVA-related statistical analytic methods, and 35% of them used descriptive statistical analytic methods. Lastly, many articles averagely cited foreign references written 11 years prior to domestic references.

• 대한물리치료과학회지
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• 제9권3호
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• pp.51-58
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• 2002

The purpose of this study was to investigate the general features of low back pain occurred in daily life. The study subjects were low back pain patients treated with physical therapy at general hospitals located in Gyeonggi-do from August 2, 2000 to march 4, 2002. Total number of distributed questionnaires were 750, and 630 questionnaires were collected and 571 questionnaires were collected analysed finally. The results were follows: 1. Regardless of gender, in the duration of low back pain, from 12 month to 35 month showed the highest rate, 34.1% of answerers. 2. Regardless of gender, in the season of incidence of low back pain, winter showed the highest rate, 33.8% of answerers. 3. Regardless of gender, in the time of incidence of low back pain in a day, after daily work showed the highest rate, 32.5% of answerers. 4. Regardless of gender, in the position of incidence of low back pain, from bending the body to straighten the body showed the highest rate, 32.5% of answerers. 5. Regardless of gender, 49.6% of low back pain patients answered that want to hospital for treatment 6. Regardless of gender, 97.5% of patients is answered that want to be physical therapy. 7. In the question of the effects for physical therapy, 92.2% of patients is answered that was effective.

• 아동학회지
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• 제26권6호
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• pp.189-200
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• 2005

The main objectives of this study are to examine the relationships among the Bu-Ja- Yu-Chin-SungCheong, child's self differentiation and interpersonal relationship and to compare the effects of the cultural virtues. Bu-Ja-Yu-Chin-Sung-Cheong which is the Korean traditional parent-child affective bonding defined as a characteristic of relationship between parents and children within Korean culture by Choi, sang jin. The subject of the study are 656 students from 4 different elementary schools in Seoul : they were 5 and 6th grades. The study was executed by surveying them with questionnaire and the results were analyzed through co-relation analysis and multiple regression. Findings were: (l)the Korean traditional parent-child affective bonding has a positive effect on self differentiation and interpersonal relationship of a child. (2)The Korean traditional bonding has a impact on a child's acceptance of others and social behavior. However, according to the level of a child's self differentiation a child's dominance-ascendance, ostentation-narcism interpersonal relationship inclination increased.

• 콘크리트학회논문집
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• 제23권6호
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• pp.799-808
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• 2011

이 논문에서는 다방향성 GFRP 플레이트의 인장특성치에 대한 명확한 분석을 위해 FRP 보강근과 같은 정착장치를 이용한 시험 방법을 제안하였다. 등방성 또는 직교섬유로 강화된 FRP 플레이트의 인장시험은 ISO 규준으로 표준화 되어 있으며 역학적 특성치 분석을 위한 시험 방법의 연구도 진행되었으나 다방향성 GFRP 플레이트에 적용시 인장강도 특성치를 명확하게 확인하기 힘든 방법으로 나타났다. 국내에서 사용하는 시험 방법의 경우 일방향성 FRP 플레이트에 적용하는 ASTM 기준을 계속 사용하고 있으며 시험 결과 인장특성이 크게 나타나는 결과를 보였다. 따라서 이 연구에서는 국내외 규준을 분석하여 모든 규준에서 공통으로 제시하고 있는 방법을 기준으로 GFRP 인장시험을 실시하였으며 정착장치 길이와 시험 방법을 새롭게 제안하여 결과를 비교 분석하였다. 또한, 시험체 정착장치의 적절한 길이 비를 수치해석을 통해 도출하여 다방향성 GFRP 플레이트의 새로운 인장 시험 방법을 제시하였다.