• The Journal of Korean Physical Therapy
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• 제9권1호
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• pp.147-156
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• 1997

The purpose of this study is to determine the difference of reduction in lactic acid of blood in the course of time 1)whoa applying the blood cleaning therapy during recovery after anaerobic exercise, 2)when applying the massage during recovery after anaerobic exercise, and 3)while taking a rest during recovery after anaerobic exercise, respectively. The subject of this study consists of 30 men who are divided into three groups such as group 1(n=10) for the blood cleaning therapy, group 2(n=10) for the massage and group 3(n=10) for rest. The blood-gathering was performed over four times ; during rest, immediately after unaerobic exercise, and at 10 and 15 minutes during recovery. The results were summarized as fellows. 1. There was reduction in lactic acid when applying the blood cleaning therapy during recovery after anaerobic exercise. And remarkable differences were shown from immediately after exercise to at 10 and 15 minutes during recovery(p<0.01 and p<0.001, respectively). 2. There was also reduction in lactic acid when applying the massage during recovery after anaerobic exercise. No difference wan shown from immediately after exercise to at 10 minutes during recovery. However a remarkable difference was shown from immediately after exercise to at 15 minutes during recovery(p<0.05). 3. The rest group which took a rest during recovery after anaerobic exercise did not show any difference from immediately after exercise to at 10 and 15 minutes during recovery.

• 한국작물학회지
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• 제50권1호
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• pp.16-21
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• 2005

This study was conducted to establish the elaborate nitrogen fertilization method to enhance N use efficiency in direct-seeded rice on flooded paddy. The nitrogen uptake by rice plants was insignificant until 25 days after seeding, and increased gradually thereafter. During this early growth stage, rice plants absorbed only the $4\%$ of basal applied N, while the $45\%$ of N fertilizer remained in the paddy soil. The absorption of basal N by rice plants was almost completed at 46 days after application. Nitrogen top-dressed at 5-leaf stage was well matched to crop nutrient demand, so it could be absorbed so actively in 8days after application. As a result, we could cut down the amount of N fertilizer to $36\%$ of the basal N level without significant difference in yield. Plant recoveries of fertilizer $^{15}N$ applied with different application timings were $7.8\%$ for basal, $9.4\%$ for 5-leaf stage, $17.1\%$ for tillering stage, and $23.4\%$ for panicle initiation stage, respectively. When urea was applied with nitrogen fertilization practice based on basal incorporation (BN), plant recovery of $^{15}N$ at harvest was $31.0\%$, which was originated from $13.7\%$ for grain, and $21.3\%$ of the fertilizer $^{15}N$ remained in the soil, and the rest could be uncounted. Plant recovery of fertilizer $^{15}N$ applied with nitrogen fertilization practice based on topdressing at 5-leaf stage (TN), where N rate was reduced by $18\%$ compared with BN, was $35.1\%$ (grain $15.6\%$), and $19.9\%$ of the fertilizer $^{15}N$ remained in the soil, and the rest could be uncounted. TN showed a higher $^{15}N$ recovery than BN because it was to apply N fertilizer at a time to well meet the demand of rice plant direct-seeded on flooded paddy. We concluded that TN would be the nitrogen fertilization method to enhance N use efficiency in direct-seeded rice on flooded paddy.

• 한국작물학회지
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• 제53권1호
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• pp.50-57
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• 2008

월동 후 녹비용 호밀에 시용한 질소가 콩의 질소고정 및 흡수에 미치는 효과를 보기 위하여, 2004년 온실 및 2005년 포장에서 포트시험을 통해 시비질소량별 토양, 호밀 및 콩의 질소회수율을 조사하였다. 1. 2004년 온실폿트 시험에서는 호밀에 시용한 질소비료 량이 증가할수록 호밀지상부가 토양에서보다 질소비료로부터 질소를 흡수하는 비율이 증가하였다. 호밀이 없는 조건에서는 논흙이 밭흙보다 콩의 건물 중 및 질소흡수량이 현저히 증가하였는데, 지력이 높았던 논흙에서는 밭흙에 비해 콩이 질소고정 유래 질소의 비율이 상대적으로 낮아지고 토양유래 질소의 비율이 높았다. 2. 밭흙에서 무녹비와 대비하였을 때 호밀녹비 이용 시의 콩 시비질소회수율은 낮았지만 토양의 시비질소회수율(질소유기화)이 높아 전체회수율은 높았으며, 또 호밀녹비 이용시 콩의 시비질소회수율은 호밀에 대한 질소시용량이 많을수록 증가하였다. 3. 2004년 온실포트 실험에서의 콩의 근류고정유래의 질소비율은 약 $92{\sim}95%$로 2005년 포장포트에서의 $82{\sim}84%$보다 약 10% 정도 높았으며, 콩의 근류고정유래 질소량 및 질소량 분획 추정에서는 2년 모두 Difference method와 $^{15}N$ method간 차이를 보이지 않았다.

• 한국토양비료학회지
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• 제45권6호
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• pp.1094-1099
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• 2012

담수조건으로 토양질소동태에 대한 결실기 자운영의 투입효과를 포트시험을 통해 평가하였다. 자운영의 투입에 따라 벼의 자운영유래 질소 이용율은 약 51-64%으로 자운영의 투입량이 높을수록 감소하였다. 수확기 토양의 자운영질소는 약 3-5%가 저장되었고, 자운영 유래 질소의 손실은 각각 32.4와 44.1%를 차지하였다. 벼 수량 대비 자운영 $30Mg\;ha^{-1}$ 시용은 질소추천시비량을 전량 대체할 수 있었다.

• 국제물리치료학회지
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• 제3권2호
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• pp.422-428
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• 2012

The present study purposed to examine the effects of transcutaneous electrical nerve stimulation, self-stretching and functional massage on the recovery of muscle contraction force for muscle fatigue caused by sustained isotonic contraction. The subjects of this study were 45 healthy students. They were divided into transcutaneous electrical nerve stimulation group(n=15), self-stretching group(n=15) and functional massage group(n=15), and using Primus RS. We observed the pattern of changes in maximal voluntary isometric contraction force(MVIC) after causing muscle fatigue in quadriceps femoris muscle through sustained isotonic contraction. Maximal voluntary isometric contraction force(MVIC) were greatly increased after transcutaneous electrical nerve stimulation, self-stretching and functional massage. In the comparison of recovery rate of muscle contraction force for muscle fatigue caused by sustained isotonic contraction among the treatment groups, it did not show any significant differences. However, it showed that each treatment may be effective in recovery of muscle fatigue caused by sustained isotonic contraction.

• 대한디지털의료영상학회논문지
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• 제14권1호
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• pp.31-35
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• 2012

To test the real image quality of a spectral attenuated inversion-recovery (SPAIR) fat-suppression (FS) techniquein clinical abdominal MRI by comparison to turbo spin echo inversion-recovery (TSEIR) fat-suppression (FS) technique. 3.0T MRI studies of the abdomen were performed in 30 patients with liver lesions (hemangiomas n: 15; HCC n: 15). T2W sequences were acquired using SPAIR TSEIR. Measurements included retroperitoneal and mesenteric fat signal-to-noise (SNR) to evaluate FS; liver lesion contrast-to-noise (CNR) to evaluate bulk water signal recovery effects; and bowel wall delineation to evaluate susceptibility and physiological motion effects. SPAIR-TSEIR images produce significantly improved FS and liver lesion CNR. The mean SNR of the retroperitoneal and mesenteric fat for SPAIR were 20.5, 10.2 and TSEIR were 43.2, 24.1 (P<0.05). SPAIR-TSEIR images produced higher CNR for both hemangiomas CNR 164.88 vs 126.83 (P<0.05) and metastasis CNR 75.27 vs 53.19 (P<0.05). Bowel wall visualization was significantly improved using in both SPAIR-TSEIR (P< 0.05). The real image quality of SPAIR was better than over conventional TSEIR FS on clinical abdominal MRI scans.

• 한국토양비료학회지
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• 제32권2호
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• pp.132-139
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• 1999

요소 엽면시비가 온주밀감 잎의 질소함량 수체 및 토양의 질소회수율에 미치는 영향을 구명하고자 1998년 7년생 흥진조생에 질소 기준량 표충시비($124kg\;ha^{-1}yr^{-1}$, 나무당 86 g). 기준량의 50% 엽면시비($62kg\;ha^{-1}yr^{-1}$), 나무당 43 g), 기준량의 25% 엽면시비($31kg\;ha^{-1}yr^{-1}$, 나무당 22 g)처리를 두고 봄 여름, 가을 비료로 56(2반복 $^{15}N$ 표지 요소, 5반복 일반 요소), 11((2반복 $^{15}N$ 표지 요소, 5반복 일반 요소). 33%(7반복 모두 일반 요소) 비율로 분시하여 시험한 결과를 요약하면 다음과 같다. 나무(본)당 과실수량 및 품질은 처리간 유의한 차이가 없었다 당년 봄순의 엽신의 전질소함량은 9월 상순까지는 엽면시비구에서 많았으나 11월 16일(수확기)이후에는 처리간 큰 차이가 없었다. 수체(樹體)에 의한 질소회수율은 어느 수체 부위에서나 25% 엽면시비구에서 가장 높았고, 50% 엽면시비구에서 다음으로 높았다. 수체 전체의 질소회수율은 25, 50% 엽면시비구, 표층시비구에서 각각 29.2, 17.7, 8.0%이었다. 봄과 여름에 시용된 질소의 토심 0~40 cm에서의 잔류율은 25, 50% 엽면시비구 표층시비구에서 각각 50.3, 45.6, 51.8%이었다. 전체(수체, 낙엽, 잡초, 토양) 회수율은 25, 50% 엽면시비구, 표층시비구에서 각각 81.8, 65.1, 60.6%이었다.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2005년도 추계학술발표회 요지
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• pp.192-193
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• 2005

• 한국작물학회지
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• 제47권2호
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• pp.137-141
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• 2002

Decomposition of green manure is necessary for the nutrient supply in farm soil. Hairy vetch as a green manure is superior to other winter legumes in terms of wintering ability and N accumulation. This experiment was carried out to investigate the decomposition and N release of hairy vetch and its effect on rice production as the following crop in paddy field. Decomposition of hairy vetch placed by soil depth of 0, 10 and 20cm at transplanting time was investigated by mesh bag method, which was enclosed chopped residue in mesh bags. The fate of $^{15}$ N derived from $^{15}$ N-labeled hairy vetch was investigated at harvest in three levels of N fertilization. Grain yield of the transplanted paddy rice cultured with hairy vetch as starter N were compared with that of applying urea as starter N in the field. Hairy vetch residue decomposed very rapidly both in transplanted and dry-seeded paddy field. In transplanted paddy field, hairy vetch residue lost 72-81 % and 86-90% of its weight after one and five month, respectively, as affected by incorporation depth. The C/N ratio of the decomposing vetch residue increased sharply during the early stages and after then, decreased slowly. The amounts of N and P released from the vetch were about 90% and 97% of initial content after one month, respectively. Recoveries of hairy vetch-$^{15}$ N by rice plant were 30.6, 34.6 and 35.7% in 0, 6 and 12 kg urea-N 10 $a^{-l}$ application, respectively, indicating that N fertilization increased the recovery of hairy vetch. $^{15}$ N. Hairy vetch residue incorporated as starter maintained significant N $H_4$$^{+}$-N concentration in soil water of plow layer until effective tillering stage. Grain yield in the plot applied with hairy vetch was not significantly different from that in the plot with urea. We concluded that hairy vetch incorporation could substitute starter N fertilization and showed possibility to reduce N amount of top-dressing.g.g.

• 대한임상전기생리학회지
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• 제6권1호
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• pp.1-15
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• 2008

This study was designed to investigate the effect of treadmill exercise of low-intensity and high-intensity on the functional recovery and histological change in spinal cord injury rats. Sprague-Dawley rats were experimented(n=15) for this research. Spinal cord injury was induced by the NYU drop impacter device after laminectomy. After operation, rats were test at modified Tarlov scale at 3 days, and divided into the control group(n=5), experimental group I(n=5, low-intensity treadmill) and experimental group II(n=5, high-intensity treadmill). The rats were disciplined from 7 day through 21 day. Functional recovery was evaluated by the BBB scales and the Grid Walk test for the progressive locomotor recovery at 3, 7, 14, 21 days. Histopathological studies for the muscle in order to observation the change of damage and size of the organized surface which is visible visually it executed hematoxylin & eosin stain. According to the result of 4 weeks of treadmill exercise, group II showed improvement than group I of motor behavior after spinal cord injury.