• 한국정밀공학회지
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• 제30권4호
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• pp.450-458
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• 2013

The aim of this study was to develop and verify gait training system for post-stroke hemiplegia patients with step length asymmetry. Most post-stroke hemiplegic patients show gait asymmetry and weight shifting training has been suggested as a useful method for improving the walking ability. However, verbal cue by physical therapist may be not effective. Therefore, our weight shift training system was designed to give a feedback to patients through precise plantar pressure and center of pressure (COP) measurement. This weight shifting biofeedback training system is composed of F-Scan plantar pressure measurement system and software development kit (SDK) for Windows operating system. Two post-stroke patients with step length asymmetry were enrolled in this study. After training for six weeks, the weight shift score and step length ratio of two all patients were improved and approached to them of non-disabled. This system developed in this study may improve the step length asymmetry, and therefore this system is also expected to improve a walking ability in hemiplegic patients.

• 생명과학회지
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• 제8권4호
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• pp.431-436
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• 1998

잎 들깨 품종의 선발을 위하여 들깨 91품종의 집단에서 8개 형질에 대한 유전력 및 유전 상관을 추정하여 잎 들깨 양적 형질의 효율적 선발에 대한 유용한 정보를 얻기 위하여 본 연구를 수행하였던 바 그결과를 요약하면 다음과 같다. 유전력은 엽중, 엽면적, 엽장, 엽폭, 초장, 경직경, 마디수가 0.7311~09112로서 높았고, 1주엽수가 0.3241로서 다소 낮았다. 유전 상관은 엽중과 엽면적, 엽중과 엽장, 엽중과 엽폭, 엽중과 초장, 엽중과 경직성, 초장과 경직경, 초장과 마디수, 경직경과 마디수 사이에서 각각 +로 유의하였다. 모든 형질간의 상관관게어세 유전상관의 값이 표현형 상관의 값보다 높았다.

• 한국자원식물학회지
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• 제24권6호
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• pp.724-728
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• 2011

With both common and Tartary buckwheat species, this study was aimed at producing new commercially useful bio-materials with higher nutritional and medicinal value due to higher components for health promotion and diseases care. In common buckwheat sprouts, it was found that root length at $20^{\circ}C$ was longer (5.93 cm) than at 25 and $30^{\circ}C$, whereas the hypocotyls length, fresh weight of each sprout, and whole fresh weight showed the highest value at $30^{\circ}C$. For Tartary buckwheat, the root length, hypocotyl length and fresh weight of each sprout and whole fresh weight were also the highest at $30^{\circ}C$. Common buckwheat (Suwon No.1) and Tartary buckwheat (KW45) sprouts cultured at $20^{\circ}C$ showed that hypocotyl length, fresh weight of each sprout, and whole fresh weight in the control were higher than those sprouts treated with 5% and 10% deep sea water (DSW), while the sprouts cultured at $30^{\circ}C$ showed were significantly longer hypocotyls than the control or 5% DSW treatment.

• 한국수산과학회지
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• 제42권6호
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• pp.600-603
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• 2009

Genetic and phenotypic parameter estimates for measurement traits were obtained from pacific oyster Crassostrea gigas at nine months old. For the growth-related traits among nine months old pacific oyster, heritabilities of shell length, shell height, shell width, total weight, body weight and shell weight were estimated as 0.4855, 0.5248, 0.0884, 0.7236, 0.7726 and 0.6957, respectively. Genetic correlations among the growth-related traits of pacific oyster at nines month old, shell length, shell height, shell width, total weight, body weight, shell weight were showing highly positive correlations. Breeding value on growth-related traits of pacific oyster at nine months old were estimated as shell length -7.044-11.870, shell height -11.380-18.370, shell width -1.234-2.831, total weight -8.339-17.140, body weight -1.813-3.507 and shell weight -4.422-8.837. The results show that there is quite substantial additive genetic variance for measurement traits in pacific oyster that can be exploited through selective breeding.

• 수산해양기술연구
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• 제47권4호
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• pp.290-299
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• 2011

Field tests were carried out with five different mesh sizes (86.6, 101.0, 121.2, 137.7, 151.5mm) to study the relative efficiency of monofilament and multifilament gill net for Marbled sole, Pleuronectes yokohamae, in the western sea of Korea, 2007-2009. The relative efficiency was analyzed by length distribution, catch in number, catch in weight and weight per individual for Marbled sole. Statistical T-test was done to verify the efficiency between two gears. In the field tests, the total body length range, catch in number and weight of Marbled sole was 15.8-48.2cm, 728 and 254,939g, respectively. During the field tests, Marbled sole less than 15cm length which is prohibition size of fishing was not caught, but the caught number of Marbled sole less than 19.5cm length which is first maturity length was 13 (1.8%) and the caught number of Marbled sole more than 19.5cm was 715 (98.2%). Catches of monofilament gill net was average 1.4 times more efficient than multifilament gill net. The weight per individual and total length by mesh sizes in the two gears tended to gradually increase according to mesh size increasing. But there was little difference of weight per individual and total length by mesh sizes between two gears.

• 한국동물학회지
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• 제9권2호
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• pp.12-20
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• 1966

Studies on the rate of growth, the rate of feeding and the efficiency of food conversion on the stage of new-born fries to the near adult size for three species of cuttlefishes , Sepia esculenta, Sepia subaculeata, Sepiella maindroni and two species of squids, Sepioteuthis lessomiana, Euprymna berryi were carried out in the process of artificial raising, and then argued about a feasibility of the propagation of cuttlefishes and squids. 1. The relation between the daily age (D) and the body weight(W) of Sepia exculent is expressed in a logarithmic equation, log W=3.0649 log D-4.2768. The daily rates of growth through 121 days of the raising period were 1.46 per cent for the man시 length and 1.67 percent for the body weight. The raipidest growth of Sepia esculenta is observed at the stage of 1 to 4 cm in the mantle length . At that time the daily rates of growth reach 3.3 to 5.5 percent for the mantle length and 10.4 to 12.0 percent for the body weight, respectively. The growth of Sepia esculenta varies a great deal to the bait. When fed on a dead bait the rates of growth decrease 17 per cent for the mantle length and 26 percent for the body weight compared with those fed on a live bait. 2. The relation between the daily age and the body weight of Sepia subaculeata is expressed in a logarithmic equation, log W=3.7447 log D-4.9003. The daily rates of growth through 110 days of the raising period were 1.63 percent for the mantle length and 1.83 percent for the body weight. The rapidest growth of Selia subaculeata is observed at the stage of 1.5 to 9.0 cm in the mantle length. At that time the daily rates of growth reach 3.1 to 7.4 percent for the mantle length and 6.8 to 16.7 percent for the body weight , respectively. 3. The relation between tehdaily age and the body weight of Sepiella maindroni is expressed in a ogarithmic equation , log W=2.9332 log D-3.8224 . The daily rates of growth through 133 days of the rearing period were 1.39 percent for the mantle length and 1.51 percent for the body weight . The rapidest growth of Sepiella maindroni is observed at the stage of 0.4 to 5.8 cm in the mantle length. At that time the daily rates for growth reach 4.6 to 7.3 percent for the mantle length and 8.5 to 15.4 percent for the body weight , respectively. 4. The daily rates of growth onthe stage of 0.5 to 6.0 comin the mantle length of Sepioteuthis lessoniana were 4.1 to 5.9 percent for the mantle length and 7.1 to 10.7 percent for the body weight . 5. During the rearing period of 31 days immediately after the hatching , the daily rateof feeding of Sepia esculenta marked 11.0 to 39.4 percent (28.2 percent in an average), and the efficiency of food conversion of this species reached 9.0 to 71.0percent (38.7percent in an average). Even at the more growing stage of 4.5to 6.2 cm in the mantle length, the daily rate of feeding of three species of cuttlefishes wee maintained 17.7 percent for Sepia esculenta, 30.8 percent for Sepia subaculeata and 34.7percent for Sepiella maindroni on an average. 6. The efficiency of food coversion of cuttlefishes and squids are larger than those of other fishes, and all the species are rapid in their growth. Four to five months are thought to be enough for their growing into a fair commercial size.

• 한국잠사곤충학회지
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• 제13권1호
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• pp.1-11
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• 1971

뽕나무의 절간장과 엽면적 및 엽중과의 상관관계를 구명하고 지조부위별 절간장 엽면적 및 엽중의 변이를 구명하기 위하여 30개의 품종을 품종대상으로 하는 동시에 동일품종내에 있어서의 이들의 상관관계를 알기 위하여 소엽형품종인 개량서반과 대엽형품종인 노상에 대하여 조사한 결과는 아래와 같다. 가. 각성상과 엽면적 및 엽중의 상관은 모두 다음과 같이 정의 상관관계가 있었다. (1) 즉대표품종군에서 절간장과 엽면적 및 엽중은 모두 정의 높은 상관이 있었다. (2) 대표품종군에서 지조장과는 어느 경우나 상관이 없었고 단일품종내에서는 모두 정의 상관이 있었다. (3) 지조의 체적과 엽면적 엽중과는 대표품종군에서나 동일품종내에 있어서 모두 상관이 있었고 특히 개량서반이 가장 큰 상관을 나타냈다. (4) 엽병장과 엽면적 및 엽중과는 대표품적군, 개량서반 및 노상의 모두 놓은 상관을 나타내었다. 나. 지조의 부위별 절간장의 변이는 대부분의 품종이 같은 경향으로 하부인 I부위가 가장 길고 II부위까지 감소하다가 일단 증가한 후 다시 감소하여 선단에서 가장 짧았다. 다. 지조의 부위별 엽면적과 엽중의 변이는 I부위가 가장 작고 IV부위 까지 증가하여 최대가 되고 그 후 감소하였다.

• 한국가금학회지
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• 제20권4호
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• pp.203-208
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• 1993

육성기 꿩의 주령별 체중과 정강이 길이에 관한 상호관계를 조사하고, 조기 체중과 정강이 길이가 종꿩으로의 최종 선발주령인 20주령의 체중에 대한 회귀분석 결과 다음과 같았다. 부화시부터 20주령까지 성장기 꿩의 동일주령에서 체중과 정강이 길이는 암꿩에서 0.50~0.83, 수꿩에서 0.57~0.85의 정의 상관관계(P＜0.01)를 보여주고 있었으며, 부화시 체중은 4, 8 및 12주령의 체중과는 상관관계가 인정되지 못했으나 (P＞0.05), 부화시 체중과 16 및 20주령 체중과의 상관계수는 암컷에서 0.44(P＜0.01) 및 0.44(P＜0.01)로, 수컷에서는 각각 0.32(P＜0.05) 및 0.30(P＜0.05)로 성장말기 체중과 정의 상관관계로 나타나고 있었으나, 부화시 정강이 길이와 20주령의 체중 사이에는 암수 모두에서 상관관계가 인정되지 않았다(P＞0.05). 20주령의 체중에 대한 조기 측정치(12주령 이전)들의 회귀모형들을 검토한 바, 부화시와 12주령시 측정치를 포함한 모형 ($R^2$＝0.96), 8주령과 12주령시 측정치를 포함한 모형($R^2$＝0.96), 또는 부화시, 8주령 및 12주령시 측정치를 이용한 모형($R^2$＝0.97)으로 평가하는 것이 좋을 것으로 사료되었다.

• 한국치위생학회지
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• 제20권1호
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• pp.11-18
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• 2020

Objectives: We analyzed the correlation between physique and size of the dental arch of college students with normal occlusion. Methods: Ninety-nine college students filled out the prepared questionnaire. The length and width of the dental arch of the students was measured using a plaster model after taking an impression. The data were analyzed using the t-test and correlational analysis. Results: The maxilla arch length was 3.70 mm longer and the inter-molar width of the maxilla was 3.06 mm longer in men (both p<0.01) than in women. Additionally, the mandible was 3.66 mm longer in men as compared to those in the women (p<0.01). As height increased, there was increase in the body weight (α=0.683, p<0.01), maxilla arch length (α=0.373, p<0.01), molar width of the maxilla (α=0.214, p<0.05), and the mandible (α=0.280, p<0.01). The greater the weight increase, the greater the maxillary arch length increase (α=0.392, p<0.01), and the greater the molar width of the maxilla (α=0.336, p<0.01) and mandible (α=0.502, p<0.01) increase. Conclusions: As physical size (both height and weight) increased, the maxillary length and molar width also increased. Based on the results of this study, the cause of malocclusion, form and size of the dental arch, and stable occlusion can be used as basic data.

• Asian-Australasian Journal of Animal Sciences
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• 제12권2호
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• pp.161-164
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• 1999

Dairy performances of Pabna cows and its crossbreds with Sahiwal (SL) and Friesian (F) in the Baghabarighat dairying area of Bangladesh were evaluated. Four SL and three F sires were used for the crossbreeding. The exotic sire effect of individuals on their daughters were also evaluated in this study. It showed that the genetic group had a significant (p<0.05) effect on birth weight, age at first heat, calving interval, lactation length and lactation yield. The lowest birth weight (17.9 kg), longest age at first heat (39.2 m) and calving interval (16.3 m) shortest lactation length (199 d) and lowest lactation yield (728 L) were found in Pabna cows. The highest birth weight (22.5 kg). shortest age at first heat (25.5 m) and calving interval (13.7 m), longest lactation length (253 d) and highest lactation yield (1936 L) were found in the F crossbreds. Within the same breed, the effect of individual sire was significant (p<0.05) on age at first heat, lactation length and lactation yield. Individual sire effects of SL bulls differed significantly (p<0.05) but F sires had a non-significant (p>0.05) effect on calving interval in their progeny. The fat % and SNF % in milk and number of services required for conception did not differ (p>0.05) among inter-and intra- breed sire groups.