• Journal of Korean Physical Therapy Science
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• v.7 no.2
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• pp.683-696
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• 2000

To examine the blood lipids, muscle strength and flexibility at low back, and muscle strength in the knee joint, 44 women, who were diagnosed as chronic low back pain patients and aged between 40 to 50 years old, were recruited as the subjects. The women were divided into two groups: 1) body fat content less than 25% and 2) body fat content more than 30%. The results were: 1) No differences were found between two groups in blood lipids status. 2) The total cholesterol were less 3.78% in the normal group than the obese group. 3) The HDL-cholesterol were higher 4.85% in the normal group than the obese group. 4) The TG were less 13.1% in the normal group than the obese group. 5) No differences were found between two groups in muscle strength and flexibility 6) No differences were found between two groups in the peak torque of knee joint 7) The total work of the knee joints were higher in the normal group than the obese(P<.05). 8) The abdominal strength were higher 34.04% in the normal group than the obese group. 9) The flexibility of low back were higher 44.54% in the normal group than the obese group.

• Journal of Biomedical Engineering Research
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• v.39 no.2
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• pp.80-86
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• 2018

The aim of this study were to establish the clinical references and guidelines for the maximum standardized uptake ($SUV_{max}$) value of pancreatic cancer, pancreatitis, and normal pancreas in $^{18}F-FDG$ PET-CT examinations for pancreatic disease. For this purpose, we performed the statistical analysis on the descriptive statistics, percentiles and inter quartiles range (IQR), normal distribution, and using the probability density function for pancreatic cancer, pancreatitis, and normal pancreas. As a result, the clinical reference of $SUV_{max}$ for the pancreatic cancer, pancreatitis, and normal pancreas was more than 3.45, 1.91 to 2.62, and less than 1.91, respectively. Also, optimal cut-off value for applying the dual time point PET-CT examination was determined to be 2.62. The results of this study are summarized as follows: first, we suggests the clinical reference and guideline for the pancreatic cancer, pancreatitis, and normal pancreas, and second, suggests a scientific approach to improve diagnostic accuracy of pancreatic disease by deviating from an approximate experience approach.

• The Journal of Korean Society for School & Community Health Education
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• v.1 no.1
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• pp.107-118
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• 2000

This study was designed to contribute to the right development of children's physical strength and growth by making a comparative analysis of 6 graders' physical strength with the help of the 6 events of physical strength tests according to sex and trying to work out some relationship between obese children and normal ones. With this in mind, the subjects were 400 elementary students, obese and normal, who reside in Seoul. The results were made by means of the average records and standard deviation test of 6-event physical strength tests per sex and group. The conclusions were as follows; 1. The normal children's average score was better than those of their counterparts, showing a significant difference in the 6-event of physical strength tests. 2. There was a little difference per sex. And there was a significant static interrelations in 4 events except a 100 m race and a standing broad jump when the subjects do well in the two afore-mentioned events. All the other groups minus female normal one show a low interrelations in such events as a 100 m race, a chin-up, and hanging down from the horizontal bar. 3. The obese group was inferior to the normal one regardless of sex. In terms of the physical interrelations, there was no difference among the three groups minus the female normal one.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.20 no.3
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• pp.140-145
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• 2009

Objectives : This study explored the differences in their ego defense mechanisms between adolescents with conduct disorder and normal adolescents. Methods : Subjects were 35 adolescents with conduct disorder and 44 normal adolescents. The Ewha Defense Mechanism Test (EDMT), consisting of 200 items and 20 scales, was administered, to examine the defense mechanisms of both groups of adolescents. Results : Normal adolescents presented statistically significantly higher scores on the reaction formation, controlling, suppression, anticipation, dissociation, and distortion scales than did adolescents with conduct disorder. Zn addition, adolescents with conduct disorder used neurotic defense mechanisms of both neurotic and mature levels less frequently than normal adolescents did. Factor analysis revealed that, normal adolescents had higher scores on ego-expansive factor scales and behavior control factor scales thanadolescents with conduct disorder did. Conclusion : The results suggest adolescents with conduct disorder use mature and ego-expansive defense mechanisms less frequently than do normal adolescents.

• Journal of the East Asian Society of Dietary Life
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• v.19 no.2
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• pp.143-156
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• 2009

This study was performed in order to investigate the difference of general environment, life style, dietary behavior and food habit between the obese children and normal children. The number of subject was 98 obese children, 347 normal children. General characteristic was not significantly different, however father's BMI of obese children was significantly (p<0.05) higher than that of normal children. There was significant difference between obese children and normal children in mother's office-closing hour (p<0.05). Normal children spent more time to play outdoor than obese children in their free time. Normal children slept over 8 hours, but obese children slept below 8 hours. Most of obese children (70.4%) ate too many times and most of obese children (72.4%) recognized their overweight. Parents of obese children considered that their children need to control their weight and correct their eating habits such as overeating. Obese children could not bear hunger and kept eating a meal until they feel full. Obese children preferred fried or broiled food. Therefore nutritional education is necessary to improve the food habits of obese children and to reduce the obesity rate of children.

• 한국정보디스플레이학회:학술대회논문집
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• 2008.10a
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• pp.1529-1531
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• 2008

Since the discovery over a decade ago, carbon nanotubes (CNTs) have been attracting considerable attentions both from scientists and engineers. Because of the excellent field emission properties, such as high aspect ratio, extremely small diameter, and high emission current, CNTs become a potential candidate as field emitter for field emission display (FED) and lighting (FEL) as backlight for LCD. Due to the exceptional physical properties, such as superior thermal and electrical conductivities, as well as high stiffness and strength, the CNT-based composites can be as light-weight heat-sink or thermal spreader materials used for power electronic devices, such as power LED for general illumination. The CNTs for above applications will be reviewed, and related materials and devices will be demonstrated in this paper.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.64 no.2
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• pp.353-356
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• 2015

Due to high oil prices, environmental pollution, the study of electric vehicles have been actively promoted. Charger for the electric vehicle is being developed using wireless rather than cable options. In this paper, we got more efficiency from using a superconducting transmission coil compared to using a normal coil. We implemented a wireless power transmission system using a magnetic induction at a frequency of 63.1 kHz. For comparison, a transmitter was designed using a superconducting coil and a normal coil. In addition, a receiver used a normal coil to apply for electric vehicles. The applied voltage and current were12 V and 5 A. Efficiency at a distance of 40 ~ 80 mm was measured. As a result, the superconducting transmission coil had a higher efficiency than the normal transmission coil. However, the receiving coil should be normal conductor for stable operation considering that it was put in moving electric vehicle. The efficiency was increased to 44 % at a distance of 40 mm when the diameter of normal receiving coil was 120 mm.

• Journal of the Korea Computer Graphics Society
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• v.4 no.2
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• pp.29-32
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• 1998

When rendering polyhedral models, normal vectors at polygon vertices are necessary for smooth shading. The most commonly used technique of approximating a vertex normal vector by averaging normal vectors of faces around the vertex yields, however, different results on different tessellations Further, continuous deformation of models may cause abrupt discontinuous changes in normal vector directions. In this paper, a variation of the above technique is proposed to avoid these problems. Specifically, it uses a weighted average of normal vectors of faces around the vertex, where the weight of a face being the angular span of the two edges incident on the vertex.

• The Journal of Korean Medicine
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• v.27 no.3 s.67
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• pp.1-13
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• 2006

The purpose of this study was to investigate the anti-obesity effects of crude saponin (CS) in Korean red ginseng (KRG) on rats fed a high fat (HF) diet. Methods: Male Sprague-Dawley (SD) rats were divided into a normal diet group and a high-fat (HF) diet group. The HF diet group became obese from being fed a HF diet over five weeks. The normal diet group were fed a normal diet. Each CS group of the normal diet group and HF diet group was administered CS (200 mg/kg, i.p.) for three weeks, the control group of both types was administered normal saline (1ml/kg, i.p.) instead of CS. Each group had 5 rats. Results: After administration of CS, the body weight, food consumption, adipose tissues, and expression of appetite peptides such as leptin and neuropeptide-Y (NPY) were investigated in the HF diet group as well as the normal diet group. Administration of CS reduced body weight, food intake, and fat content in the HF and normal diet groups. After CS administration, NPY expression and leptin were lower in the HF diet group. Conclusions: Our results suggest that CS may be useful in the treatment of obesity, especially of type qixu (氣虛).

• The Journal of Korean Physical Therapy
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• v.11 no.2
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• pp.29-36
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• 1999

This study was carried out to compare the rotation between vestibular function and balance skills in normal and hearing-impaired children. The subjects were 20 normal children (8-10 years) and 20 bearing-impaired children (8-10 years). The SCPNT was used to assess vestibular function, then, one leg stance test was used to compare static balance skill of normal and hearing-impaired children according to existence of visual input and sex. The results were as follows: 1. In SCPNT, normal md hearing-impaired children showed statistical significance in all left-sided and right-sided rotations(p<.01), and the vestibular function responses of hearing-impaired children wore normal $20\%$, abnormal $45\%$, absent $35\%$. 2. To compare balance skills between normal and hearing-impaired according to eye open and eye close, one-leg stance Oat showed statistical significance in eye open(p<.05), but did not show statistical significance in eye close(p>.05). 3. SCPNT, ene-leg stance test did not show statistical significance according to sex(p>.05).