• 수산해양기술연구
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• 제58권4호
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• pp.345-351
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• 2022

In this study, the target strength for multi-frequency (38 kHz, 120 kHz, 200 kHz) of juvenile silverfish (Pleuragramma antarcticum) was estimated using by the KRM (Kirchhoff-ray mode) model. The body shape of the silverfish was described by a picture and the body length of nine individuals ranged in 1.8 cm to 8.8 cm. The maximum TS_cm according to the total length for the constant term (b20) was -92.93 dB at 38 kHz, -86.63 dB at 120 kHz, and -85.89 dB at 200 kHz, respectively. The averaged TS_cm according to total length for the constant term (b20) was -100.0 dB at 38 kHz, -93.0 dB at 120 kHz, and -106.9 dB at 200 kHz, respectively.

• 한국의류산업학회지
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• 제16권6호
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• pp.1001-1007
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• 2014

We surveyed the wearing characteristics of hip protectors. The problems of existing hip protectors were identified and the directions for improvement were presented. The evaluation of wearing characteristics was conducted on the 100 elderly women (60 to 85 years) with 5 types of hip protector. The questionnaire was composed of history and characteristics on falling, hip protector acceptance, preference, use characteristics and improvement requirements. The result of wearing characteristic evaluation indicated that 52% of the subject experienced falling in winter. Incidents resulting from falling occurred: outdoors (74.5%), bathroom (10.9%), and kitchen (5.5%). Body parts to be protected were in several areas: 35.6% for lumbar, 26.9% for hip joint, and 15% for hip bone. Participants prefer a belt B type design at a rate of 56.9% because it provided a sense of stability by clinging to the body and upholding the waist. Belt B type was the most appropriate in terms of fit, allowance, mobility, and design except pad thickness. To reduce the risk of hip fracture, hip protector needs to be designed in consideration of user's type of fall and body shape. The pattern and size of a hip protector has to be improved in regards to the amount of discomfort. An objective evaluation is needed for the ergonomic design of a hip protector based on and analysis of 3D body image of the elderly and the shock-absorbing quality of pad.

• 한국어류학회지
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• 제32권3호
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• pp.136-142
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• 2020

이 연구는 투라치의 형태 및 골격 관찰을 위해 2017년에 여수시 돌산도와 부산에서 채집한 3개체를 대상으로 외부형태를 관찰하고 내부 골격을 삶아 채골하여 관찰하였다. 형태적 특징은 다음과 같다. 몸은 길고 측편되어 있었고, 위턱은 앞으로 돌출됐다. 체색은 은백색을 띠고 있었고, 눈은 크며, 가슴지느러미와 꼬리지느러미는 등쪽으로 향해 있었다. 작은 돌기들이 배쪽에 머리 뒤부터 꼬리까지 있었다. 새파 수는 (3~4)+(7~8)개였다. 등지느러미 줄기는 185~190개였고, 가슴지느러미는 12~13개, 꼬리지느러미에는 9개의 연조와, 5+2개의 짧은 극조가 있었다. 골격 특징은 다음과 같다. 주상악골은 길고 4개의 이빨이 있었다. 치골은 삼각형 모양이었고, 간새개골과 하새개골은 크고 넓었으며, 5개의 새조골이 있었다. 후쇄골은 가늘고 길게 발달 되어있었다. 척추골은 79~80개였고, 후방 추골은 길었으며, 미부봉상골에는 5~6개의 돌기가 있었다.

• 문화기술의 융합
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• 제9권1호
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• pp.347-353
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• 2023

현재 軍(육군) 입대 장병은 신병훈련소에서 신체에 대한 치수 측정(자동, 수동) 및 샘플 피복을 착용해 본 후, 희망하는 치수로 피복을 지급받고 있다. 하지만, 민간 평상복보다 상대적으로 매우 세분화된 치수 체계를 적용하고 있는 軍에서는 이와 같은 치수 측정 과정에서 발생하는 측정된 치수의 낮은 정확도로 인해 지급받은 피복이 제대로 맞지 않아 피복을 교체하는 빈도가 매우 빈번히 발생하고 있다. 뿐만 아니라 서구적으로 변화된 MZ 세대의 체형변화를 반영하지 않고, 10여 년 전(前)에 수집된 구세대 체형 데이터 기반의 치수 체계를 적용함으로써 재고량이 비효율적으로 관리되는 문제점이 있다. 즉, 필요한 규격의 피복은 부족하고 불필요한 규격의 피복재고는 다수 발생하고 있다. 따라서, 피복 교체빈도를 감소시키고 재고관리의 효율성을 향상하기 위해 딥러닝 기반의 신체 치수 자동측정과 빅데이터 분석 및 머신러닝 기반의 "입대 장병 개인 맞춤형 피복 자동 추천 시스템"을 제안한다.

• 수산해양기술연구
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• 제59권3호
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• pp.189-195
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• 2023

This study quantitatively evaluated size selectivity for three netting shapes (T0; regular, T45, T90) and hanging ratio (35%, 70%) of T0 netting used for trawl codend. The size selectivity experiment was performed in a tank using a cube experimental model with a length of 50 cm on one side and 389 experimental individuals, jack mackerel (Trachurus japonicus). In the selectivity analysis, a selectivity curve was created based on the selection ratio using a logistic function, and the 25%, 50%, and 70% selection length and selection range (SR) were obtained. The T0 netting was 19.54 cm when the 50% selective length, which is a selectivity evaluation index, had a hanging ratio of 35%, a selection range of 0.51 cm, and 22.70 cm and 3.08 cm for the hanging ratio of 70%. The T45 netting was 24.34 cm and 2.13 cm, and the T90 netting was 23.51 cm and 2.84 cm. The results of the T45 netting and the T90 netting are similar, and the 50% selection length and selection range were relatively larger than the T0 netting. There was a significant difference in the correlation between the circumference of the inner circle of the mesh by the shape of the netting and the body girth of the experimental individual (Pearson test, r = 0.86, p < 0.05). There was no significant difference in the correlation between the selection ratio by the T0 netting, T45 netting, and T90 netting with a 70% hanging ratio (one-way ANOVA, p > 0.05). The results of this study showed that selectivity such as T45 netting and T90 netting appeared when the hanging ratio, which maximizes the area of T0 netting, was maintained at 70%.

• 한국식생활문화학회지
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• 제27권6호
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• pp.759-768
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• 2012

The purpose of this study was to determine differences in perception of weight management, balanced food intake, knowledge of obesity, and nutrition knowledge in university students. The average weight and height of male subjects were $175.0{\pm}5.7cm$ and $69.1{\pm}11.8kg$, whereas those of female subjects were $161.7{\pm}5.0cm$ and $51.7{\pm}6.9kg$, respectively. Average scores for balanced food intake were not significantly different between male and female students. The total number of correct answers for obesity knowledge was not significantly different according to gender, but four responses related with losing weight showed higher perception scores in females compared to males (p<0.05). The total number of correct answers for nutrition knowledge was not significantly different between males and females. The average BMI of male and female subjects were $22.5{\pm}3.44$ and $19.7{\pm}2.21$, respectively, ranged in normality. Self-evaluation of body shape was mostly in the normal or standard range in both males and females, but females showed a higher perception rate of chubby or fat than males. The percentages of interest in weight management was 36.0% in males and 50.8% in females, with higher interest in female subjects (p<0.01).

• 한국융합학회논문지
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• 제11권2호
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• pp.253-259
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• 2020

젊은 연령의 대학생들은 외모에 대한 관심이 높고 상업성 매스매디어의 영향으로 지나치게 마른 체형이나 근육질의 몸매를 선호하여 자신의 정상적인 외모에 불만족하는 경우가 많다. 본 연구에서는 청주지역 남녀 대학생 400명을 대상으로 다이어트 행동에 대한 설문조사를 실시하여, 체형에 대한 인식정도, 실제 체중과 신장, 다이어트 경험, 부작용 등 다이어트와 관련된 행동특성에 대해 알아보았다. 연구결과 남학생의 희망하는 평균체중은 68.81kg으로 현재 평균체중 73.53kg에 비해 6.42% 적었고, 여학생의 희망체중은 49.15kg으로 현재 평균체중 54.58kg에 비해 9.95% 낮게 조사되었다. 남녀 모두 현재보다 체중이 더 적은 것을 희망하고 있으며, 여학생의 현재 체중과 희망체중의 차이가 남학생보다 더 컸다. 체중만족도에서는 불만족하는 경우가 가장 많았으며, 불만족, 아주 불만족하는 여학생의 비율(48.9%,12.5%)이 남학생(32.4%,10.8%)에 비하여 높았다. 이상의 결과, 체중에 대한 불만족이 크며 현 체중보다 날씬한 몸매를 원하고 있는 대학생들이 바람직한 체중관리를 통해 건강한 생활을 유지할 수 있도록 정확한 영양지식과 적절한 교육 및 상담프로그램이 제공되어야 할 것이다.

• Journal of Korean Neurosurgical Society
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• 제59권3호
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• pp.242-246
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• 2016

Craniosynostosis is the premature fusion of calvarial sutures, resulting in deformed craniofacial appearance. Hence, for a long time, it has been considered an aesthetic disorder. Fused sutures restrict growth adjacent to the suture, but compensatory skull growth occurs to accommodate the growing brain. The primary goal for the management of this craniofacial deformity has been to release the constricted skull and reform the distorted shape of the skull vault. However, the intellectual and behavioral prognosis of affected children has also been taken into consideration since the beginning of the modern era of surgical management of craniosynostosis. A growing body of literature indicates that extensive surgery, such as the whole-vault cranioplasty approach, would result in better outcomes. In addition, the age at treatment is becoming a major concern for optimal outcome in terms of cosmetic results as well as neurodevelopment. This review will discuss major concerns regarding neurodevelopmental issues and related factors.

• 한방비만학회지
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• 제5권1호
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• pp.1-8
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• 2005

Objectives: Although electro-acupuncture is being utilized to reduce weight in Korea, its usefulness in obesity management has not been fully evaluated yet. The objective of this study is to evaluate the effect of Electro-acupuncture on thigh circumference. Methods: 12 healthy volunteers participated in this study. We measured the circumference of both thighs, and treated the thicker one with transcutaneous electro-acupuncture at 8 acupoints, 10 times in total. The electrical parameters were : 1st step frequency set was at 15Hz and the treatment proceeded for 50 minutes, 2nd step at 50Hz for 10 minutes and at 3rd step the acupunctures were removed and electrodes were attached on the lower limb at 166Hz for 15 minutes. In order to evaluate the effect of the treatment, total body weight, percentage of body fat and thigh circumference were measured 4 times. Before the treatment, after 5th and 10th treatment and 1 month after completion of the whole treating procedure. Statistical significance(P<0.05) was determined using the Wilcoxon signed rank test. We did not control diet, exercise and lifestyle of the volunteers. Results: No significant change was shown in body weight after 10 times of treatment. Yet the thigh circumference of effect group significantly decreased after 5th treatment and 10th treatment. The circumference of control group that was not treated by electro-acupuncture significantly decreased too. At first, difference between the two thighs in circumference was obvious, but no difference was left after 10 times of treatments on the thicker thigh. Percentage of body fat was significantly decreased. 1 month after having completed the treatment, there was no significant difference of body weight, thigh circumferences and percentage of body fat. Conclusion: These results suggest that electro-acupuncture effectively regulates regional fat, body fat percentage and body shape.

• 한국임상수의학회지
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• 제31권1호
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• pp.31-35
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• 2014

As with humans, overweight or obesity is a major health concern in the companion animal population. A cross-sectional questionnaire-based survey of dog owners attending primary small animal veterinary practices from different areas in Chuncheon, Kangwon province, Korea was undertaken to explore the relationships between socioeconomic and other relevant risk factors associated with canine obesity. In addition, the author was to estimate the prevalence of obesity compared to published literatures for dogs. Owners were asked about dog age, neuter status, feeding habits, dog exercise, household income and owner age. The body condition score (BCS) of the dogs was also assessed. Multivariable binary logistic regression was used to assess the association between BCS and potential risk factors controlling for confounding variables, using odds ratios (OR), 95% confidence intervals (CIs). A total of 275 dogs (136 males and 139 females) aged 1-12 years (mean age $5.6{\pm}3.7$ years) were surveyed in 2013. Of these, 46.9% of dogs (n = 129) were classed as an ideal body shape (BCS = 3), 30.9% (n = 85) were overweight (BCS = 4), 8.4% (n = 23) were obese (BCS = 5) and 13.8% (n = 38) were underweight (BCS = 1 or 2). Neutered males and spayed females had the highest prevalence of obesity (43.4% and 33.9%); intact females had the lowest prevalence of obesity (31.6%). In univariable model, risk factors associated with canine obesity are multifactorial and include owner income, owner age, age of dog, neuter status, frequency of feeding per day, frequency of snacks and consultation with veterinarian on dog's weight. In final multivariable logistic regression model, dogs whose owners reported no consultation with veterinarians for weight management were significantly more likely to be obesity than ideal (OR = 7.6, 95% CI, 4.2-13.8; p < 0.0001). This study showed a high prevalence of obesity in domestic companion dogs. Since this was a cross-sectional study with small samples, the association of canine obesity with risk factors warrants more research. To the author's best knowledge, this is the first Korean study on dog body condition and obesity.