• 대한추나의학회지
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• 제4권1호
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• pp.1-16
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• 2003

Objectives : The purpose of this study is researching for possibility that Moire topography be applied in group school screening for scoliosis known school health problem, and find acceptable method of early detection and early treatment for scoliosis Methods : The authors practiced Moire topography for primary & middle school 1,895 students[male 976, female 919] in Jeonju, korea in 2001. After we distinguished students who had abnormal finding in Moire topography and then re-examined spinal X-ray analysis. The data was analysed and evaluated statistically Results : According to this research, the abnormal finding in Moire topography was 53.7% (1,018 students), and students needed X-ray re-examination were 11.2% (213 students). Students diagnosed scoliosis by X-ray re-examination were 1.8%. According to statistical analysis, interval between vertical base line of pelvis and vertical base line of neck, gap between left distance and right distance to the vertical base line of pelvis and difference of contour lines have strong correlations with deformity degree of the body surface examined by Moire. Conclusions : Following this research, throughout early detection for scoliosis by Moire topography could reduce exposure from scoliosis radiographs, and could detect trunk asymmetry that couldn't be found existing X-ray examination, so it made selecting students under observation who have bad posture possible.

• 대한수의학회지
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• 제49권1호
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• pp.79-83
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• 2009

A 6-year-old, spayed female Miniature Pinscher dog with chronic vomiting lasted for 7 weeks was referred to the Veterinary Medical Teaching Hospital of Chungnam National University. Physical examination, complete blood counts, serum chemistry, gastroscopy, upper gastrointestinal series, endoscopic biopsy and histopathological examination were performed for the diagnosis. The complete blood counts and serum biochemistry revealed no remarkable effect to the patient's general condition. Gastroscopy revealed erosion, erythema in mucosal surface of gastric lesions and endoscopic biopsy performed. No significant findings in upper gastrointestinal series were observed, and histopathologic examination revealed infiltration of lymphocyte in the gastric mucosa. Based on these findings, the dog was diagnosed with lymphocytic gastritis. The dog were treated by metronidazole and ranitidine with hypoallergenic diet, and then the patient showed no vomiting or other complications.

• 드라이브 ㆍ 컨트롤
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• 제18권1호
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• pp.31-38
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• 2021

This study presents a new principle for driving the robot aimed at reducing the position error for the boresonic examination of turbine rotor. The conventional method of inspection is performed by installing manipulator onto the flange of the turbine rotor and connecting a pipe, which is then being pushed into the bore. The longer the pipe gets, the greater sagging and distortion appear, making it difficult for the ultrasonic sensor to contact with the internal surface of the bore. A pneumatic pressure will ensure the front or rear feet of the robot in close contact with the inner wall to prevent slipping, while the ball screw on the body of the robot will rotate to drive it in the axial direction. The compression force required for tight contact was calculated in the form of a three-point support, and a static structural simulation analysis was performed by designing and modeling the robot mechanism. The driving performance and ultrasonic detection ability have been tested by fabricating the robot, the test piece for ultrasonic calibration and the transparent mock-up for robot demonstration. The tests have confirmed that no slipping occurs at a certain pneumatic pressure or over.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2004년도 하계학술대회 논문집 Vol.5 No.2
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• pp.1121-1124
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• 2004

Aging test to estimate life property of polymer insulator is executed through several international standard such as IEC 61109 and CEA tracking wheel test, but is not getting clear conclusion yet. There are two methods in the diagnosis method of polymer insulator such as off-line and on-line. The diagnosis methods in off-line are external condition analysis by the eye, contaminant analysis on surface, surface analysis, pollution withstand voltage test, power frequency flashover voltage test, lightning impulse flashover test, tensile fracture load test and flexural load test. The diagnosis methods in off-line most are the method for virgin and last aged sample. However, the diagnosis method in on-line is method that can be evaluate sample state as progressing continuously aging test in beginning, The diagnosis method in on-line is arranged as following: leakage current measurement, electric field, surface state investigation, thermal image, emitting light measurement and then so. In this paper, the tracking performance of polymer insulator with salt solution which is added surface active agent. The diagnosis of insulator sample has been analyzed by leakage current and visual examination.

• 대한임상전기생리학회지
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• 제2권3호
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• pp.51-64
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• 2004

This study understood measured items of significantly difference through the surface topographical comparison of dorsal trunk's surface between normal and scoliosis subjects. 300 subjects for this study were participated (middle, high school and college students). Normal 28(males 12, females 16) and scoliosis subjects 16(males 4, females 12) were chosen by assessment tools (physical examination, 3D-surface topography) among subjects at Dongshin University Oriental Hospital. The results were as follow: 1. It was shown that the significantly difference was observed by distance of peak to curve with scoliosis between two groups(p<0.001). 2. It was shown that top difference of between groups in anterior-posterior view was the significantly difference at cervicothoracic, thoracic, thoracolumbar and dorsal part of lumbar(p<0.001). These results suggest that method to use 3D-surface topography measurement would be useful diagnosis method and clinical use of physical therapy.

• 한국표면공학회지
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• 제35권5호
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• pp.319-324
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• 2002

It is known that ion-assisted reaction method is effective for the surface modification of polymers. The surface treatment of Spectra fibers using the ion-assisted reaction method was investigated in the present study The Spectra fibers were treated by $Ar^{+}$ / ion irradiation under oxygen environment. The treatment was carried out at different $Ar^{+}$ ion doses. The$ Ar^{+ }$ /ion doses used were $6$\times$10^{15}$ , $1$\times$10^{16}$ , $5$\times$10^{16}$ , $1$\times$10^{17}$ / ions/$\m^2$. Optimal $Ar^{+}$ ion dose in the treatment of Spectra fibers was determined by measuring the tensile strength and modulus of Spectra/vinylester composites as a function of ion dose. It was found that the optimal ion dose was $1$\times$10^{16}$ions/$\m^2$. It was also found from the scanning electron microscope examination that the surface-treatment improved adhesion between fibers and vinylester resin.

• 보존과학연구
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• 통권24호
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• pp.29-60
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• 2003

The conservation problem of stone cultural properties is widely influenced by environmental pollution nowadays as well as agingsymptoms itself. Most stone cultural properties are directly affected by air pollution such as smoke, acid-rain, etc., resulting surface separation and pulverization. In the case of Ten storied pagoda of Gyeongcheonsa, once located in the center of the Seoul, the surface shows excessive contaminant by air pollution. It is very difficult to identify chemical structure and formation system of these contaminant. Also the discoloration and stains on the surface are not pleasant to see. Through the examination of the contaminant by SEM-EDS, it is observed that the major mineral is Gypsum and many other minerals were also revealed. The contaminant layer seems to be thin and wide at the south face of pagoda and thick and narrow at the north face. This distribution pattern could provide information on the surface characteristics of pagoda. Further, the information could help to identify the relationship between geological and environmental factors and the surface patterns.

• 한국환경보건학회지
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• 제27권1호
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• pp.100-105
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• 2001

Microstructural examinations were performed on the anaerobic biofilm from reactor filled with PE support media. Optical microscope, SEM and fluorescent microscope were used for qualitative and morphological studies on the attached microorganism under anaerobic condition. Microorganisms were attached in crevices where protection from shear forces of surfaces where easy to contact with support media surface. A hypothesis for biofilm accumulation occurs on a surface such as polymer support media is presented schematically : 1st step ; cell-support media attachment, 2nd step ; cell-support media attachment and cell-cell attachment, 3rd step ; attached biofilm from neighboring crevices joins together and growing, 4th step ; mature and irregualar biofilm was formed. In SEM photographs, shape and structures of biofilm were observed, but microorganism species and methanogens were not identified. A large number of methanogenic bacteria were identified on the surface of PE substratum by fluorescence under 480nm of radiation and it was estimated that methanogenic bacteria was related to initial attachment of bacteria under anaerobic condition.

• Journal of Acupuncture Research
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• 제24권4호
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• pp.237-245
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• 2007

Objective : The Dry Eye Syndrome is characterized by reduction of the stability of the tearfilm and a set of alterations of the eye surface which could relate to tear quality, normal makeup of tearfilm and alterations in blinking or regular closing of eyelids. We treated 3 patients who was suffering with severe Dry Eye Syndrome and assessed the effectiveness of Oriental Medicine in the treatment of Dry Eye Syndrome. Methods : The patients were treated by acupunture, Gi Guk Yang Hyeol-decoction(Qijuyangxie-decoction). The improvement of the symptom was judged the subjective symptoms by the change of Ocular Surface Disease Index. Result : We observed in 2 cases of the patient significant decrease in the frequency of subjective symptoms, 1 case was not treated. Conclusion: The Oriental Medicine had effective results in Dry Eye syndrome. We need to have more observation and examination of Dry Eye syndrome.

• 대한치과보철학회지
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• 제32권1호
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• pp.171-178
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• 1994

This paper reports histologic and histomorphometric results concerning bone healing around vent area of 16 titanium plasma sprayed IMZ implants in rabbit femurs. Bone contact around the implants 8 weeks after placement showed a great deal of variability from 14.32% to 65.94% and mean total bone contact was 33.96%. The mean percent amount of bone contact was 43.68% in inner surface of vent and 27.79% in outer surface. Histologic examination of horizontal sections of vent area showed direct contact with living lamellar bone and some woven bone. The implants surface area not in contact with bone was in contact with collagenous connective tissue. But there was no sign of foreign-body reaction.