• 한국어병학회지
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• 제22권3호
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• pp.229-237
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• 2009

The causative agent for the tunic softness syndrome of the cultured ascidian Halocynthia roretzi from Jan 1999 to Feb 2009 was identified using virus isolation and polymerase chain reaction (PCR). The pathogenicity of the isolated virus MABV UR-1 strain was determined by experimental infection trials. The cytopathic effects was observed in CHSE-214 cell line at a level 5.1% (4/78) in normal ascidian and 1.8% in abnormal ascidian showing tunic softness syndrome signs. MABV gene was detected in 16.8% (18/107) of normal and 13.1% (5/38) of abnormal organisms by PCR. The ratio of MABV isolation and gene detection was similar level in normal and soft tunic diseased ascidian. Based on the VP2/NS junction region sequences, eight strains of virus isolated from ascidian, were included in the same genogroup with MABV which is originally isolated in wide ranges of marine fish and shellfish species. The UR-1 strain caused 60% mortality (36.5% mortality in control group) by immersion infection and 37% mortality (same mortality in control group) in injection infection indicating no significant differences in infected and control groups. These results suggest that ascidian can act as reservoir of the MABV, and this virus is not directly related with the ascidian mortality.

• 한국임상수의학회지
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• 제37권1호
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• pp.28-33
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• 2020

The aims of this study were to obtain the normal ranges of enhancement parameters for salivary gland in dynamic CT and to investigate the effects of fasting time on contrast enhancement in clinically normal beagle dogs. With five healthy beagle dogs, dynamic CT examination was performed according to fasting times (as fasting times, 12hours, 0 min, 20 min, 40 min, 1 hours, 6 hours, 24 hours). In normal beagles with 12hours fasting, enhancement parameters through the preliminary study were as follows: ImaxA - 472 .49 ± 19.01 HU; ImaxS - 138.95 ± 6.2 5 HU; TmaxA - 25.8 ± 1.79 sec; TmaxS - 69.0 ± 23.11 sec; Teq - 80.5 ± 6.61 sec; T-Aeq - 54.5 ± 5.51 sec (Imax - peak enhancement; Tmax - time to peak enhancement; Teq - time to equilibrium phase; T-Aeq - time between peak enhancement in the common carotid artery and onset of the equilibrium phase; A - common carotid; S - submandibular gland; HU - Hounsfield unit). Additionally, ImaxA and ImaxS were significantly increased in 40 min after eating. Because these results associated with postprandial hemodynamic changes can make the diagnosis of salivary gland diseases more difficult, sufficient fasting time is important for accurate diagnosis.

• 한국컴퓨터정보학회논문지
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• 제13권5호
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• pp.179-186
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• 2008

무선 센서 네트워크의 응용범위가 늘어남에 따라 정확한 무선 채널의 정보를 필요로 한다. 실내 또는 실외의 무선 센서 네트워크의 경우 페이딩에 의한 다중 경로 전파가 문제를 일으키고 있다. 본 논문에서는 실내 2.4 GHz 채널에 대한 log-normal path loss 모델링을 살펴본다. 송신기와 수신기 사이의 거리를 1에서 30m까지 변화시키면서 수신 신호 강도 변화를 측정하고, 채널의 감쇄지수와 표준편차를 계산하였다. 계산한 모델의 패킷 수신율을 이용하여 무선 센서 채널을 연결 영역과 차단 영역으로 정의하고, 시뮬레이션과 실험 결과를 통해서 무선 채널의 특징을 비교하였다. 실험결과 실내에서의 연결 영역은 24m, 실외에서의 연결 영역은 14m로 측정되었다.

• Journal of Yeungnam Medical Science
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• 제14권1호
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• pp.168-174
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• 1997

1993년 1월부터 1996년 9월까지 영남대학교 의과대학 부속병원 산부인과에 내원한 임신 8주에서 41주까지의 정상임산부 500명을 대상으로 혈청 AFP치를 측정하여 다음과 같은 결과를 얻었다. 1. 정상임산부 혈청 AFP치는 임신 8주에 가장 낮았으며, 임신 32주에서 최고치를 나타내었다. 2. 초산부와 경산부의 혈청 AFP평균치는 각각 $166.4{\pm}12.1ng/ml$, $223.8{\pm}14.0ng/ml$ 이었으며, 경산부가 초산부보다 혈청 AFP치가 통계적으로 의의있게 높았다(p<0.01). 3. 정상남아와 정상여아를 분만한 임산부의 혈청 AFP평균치는 각각 $193.0{\pm}13.0ng/ml$, $194.3{\pm}13.8ng/ml$이었으며, 정상남아를 분만한 임산부는 정상 여아를 분만한 임산부와 비교시 혈청 AFP치가 통계적으로 유의한 차이가 없었다(p>0.05). 4. 각 주수에 따른 정상 산모의 혈청 AFP는 표 3과 같다.

• 대한핵의학회지
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• 제14권2호
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• pp.53-60
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• 1980

The radioimmunoassay of TSH (human thyrotropin) was performed by utilizing anti-h-TSH antibody and purified human thyrotropin supplied from Daiichi Radioisotope company in Japan. From Jan. 1978 through Aug. 1980 the serum concentration of TSH was measured on 41 cases with various thyroid diseases, and 22 normal persons. Among 41 cases, 9(22%) were primary hypothyroidism, 17(41%) Graves' disease, 8(20%), subacute or chronic lymphocytic thyroiditis, and 7(17%) nodular goiter. The results were as follows: 1) The normal values of serum TSH in 22 cases of control group were $4.2{\pm}1.7{\mu}U/ml(1.9-7.4{\mu}U/ml)$, which were within normal range in kit used in this study. 2) The serum TSH concentration in 9 cases with primary hypothroidism were $97.1{\pm}116.4{\mu}U/ml(14.0-300{\mu}U/ml)$, which were significantly elevated as compared with normal control values. 3) The serum TSH concentration in 17 cases with Graves' disease were $1.5{\pm}0.6{\mu}U/ml(1.0-2.5{\mu}U/ml)$, which were below than normal control. 4) The serum TSH concentration in 8 cases with subacute or chronic lymphocytic thyroiditis. revealed wide ranges ($1.6-220{\mu}U/ml$) according to the state of thyroid function. 5) The serum TSH values in 7 cases with nodular goiters were $2.3{\pm}2.0{\mu}U/ml$, which were strictly within normal levels. 6) The serum TSH levels were elevated during prolonged treatment with Tapazole (Methimazole) without serial check of the serum TSH concentration in Graves' disease, so the serial measurement of serum TSH concentration was considered of available index of thyroid states.

• 한국의류학회지
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• 제29권7호
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• pp.1018-1026
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• 2005

Recent development of 3D scanner and software is regarded as a promising method of acquiring replicas from human body indirectly. It would be very helpful if we could predict the characteristics of 2D pattern from the simple parameters related to 3D shape for ordinary user. Therefore, in this study, investigation of 2D pattern of waist/abdominal area from the 3D geometrical model was conducted for the pattern development of waist nipper. To create body models and develop the surface of them, one ortho commonly used CAD/CAM program, IDEAS(UGS-plm solutions, USA) was used. As for the size of the models, the width, thickness, and circumference ranges of adult women's torso reported in National Anthropometric Survey of Korea (1997) were used as a standard model. Seven size variations were made by changing the width of the waist only, from 19 cm to 40 cm. Therefore, simulated body models include not only the normal body but also obese body who has wider waist and abdomen width than hip width. As results, it was found that the curvature of the unfolded 2D pattern around the abdominal area decreases as the waist width increases. As the width of the waist increases more and more, so that the comparative ratios around the torso becomes in abnormal ranges, there appears inflection points and the direction of curvature was changed. 2D Patterns obtained in this research were quantified by curvature, length of the curve and angle of deflection in the reference frame box for the convenience of the actual pattern making process. It was also possible to find that the shape of patterns of abnormal body resulted in a quite interesting change in the curves of 2D pattern, which could be applied to the custom made waist nipper for obese women.

• 신재생에너지
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• 제7권3호
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• pp.67-73
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• 2011

MGT fuelled by landfill gas was tested to asses feasibility of its exhaust gas application for $CO_2$ enrichment. The exhaust gas was analyzed during start-up and normal operation with different MGT load conditions. Due to the changes of air/fuel ratio and combustion mode, $O_2$, $CO_2$, CO and NOx concentration were varied within wide ranges during the MGT start-up. Especially, NOx emissioin level was increased up to 20.01 ppmv. Different tendencies of $O_2$, $CO_2$, CO and NOx concentrations were observed with MGT output changes. $O_2$ and CO concentrations were shown to be decreased and NOx and $CO_2$ concentrations were shown to have opposite trends. NOx emission level (0.8~1.88 ppmv) was very low compared to other types of combustion based power generation equipment. Unburned hydrocarbon emission level was substantially decreased with MGT load increase. Especially, $C_2H_4$ concentration was below the detection limit(0.2 ppmv) around the nominal load condition. The exhaust gas from landfill gas fuelled MGT system was shown to be feasible for $CO_2$ fertilization. Concentrations of major components were within or below the maximum allowable ranges.

• Journal of Oral Medicine and Pain
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• 제16권1호
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• pp.113-120
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• 1991

The authors examined the patterns and various ranges of mandibular movements in TMJ lock closed patients in the frontal, sagittal and horizontal plane pre-end post-treatment. And the author obtained the following results. 1. In the frontal plane, the patterns and ranges of mandibular movement of the patients were very irregular and small before treatment. But after the treatment, the patterns were similar to the typical shield shape of the normal subjects. And the velocity of opening and closing was improved after the treatment. 2. In the sagittal plane, the mean amount of maximum mouth opening was 27.0±4.0mm before treatment and 44.0±5.4mm after treatment. And there was statistically significant improvement(p<0.005). The patterns of the movement were very irregular and small before treatment, but were similar to the shape of "Posselt's envelope of motion" after the treatment. The velocity of opening and closing was improved after the treatment 3. In the horizontal plane, the mean amount of maximum laterotrusion was 8l2±2.5mm in the affected side and 6.7±2.2mm in the non-affected side before treatment. There was a significant difference between the sides(p<0.05). After the treatment, the mean was 10.4±2.6mm in the affected side and 8.9±2.3mm in the non-affected side and there was no significant difference between the sides(p>0.05). There was no significant difference in the mean amount of maximum protrusion between the before and aftertreatment(p>0.05), but the patterns of the movements were improved.

• 대한지하수환경학회지
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• 제2권2호
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• pp.49-57
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• 1995

지하수에 대한삼중수소농도의 측정치가 발표된 충청남도 청양, 제주도 지역 및 미국 조지아지역에 대해 평균체제시간을 계산하는 지하수연령측정 모델인 PFM, CMM, DBM과 평균체제시간과 분산매개변수를 동시에 계산하는 DNM, DM( $C_{FF}$ )모델을 적용하여 그 결과를 비교하였다. 입력자료인 강우의 삼중수소 농도의 부족한 측정자료를 보완하기 위하여 한국의 포항, 카나다의 오타와지역의 강수자료를 이용하여 입력함수를 작성하였다. 내재적으로 적은 분산을 가정하는 PFM과 DBM모델에 의한 결과는 유사하게 계산되었으며, 동일한 지역에서도 특이하게 높은 농도를 보이는 지점은 CMM에 의한 계산이 되지 않았다. 평균체제시간과 분산매개변수가 동시에 계산된 DNM과 DM( $C_{FF}$ )모델의 결과는 PFM, CMM, DBM의 결과를 이용하여 매개변수값을 한정시켰다. 동일지역에서도 삼중수소농도의 변화가 큰 경우는 각 지점마다 특징적인 지하수유동특성을 보이는 것으로 판단되어, 전 지 역에 걸쳐 동일한 모델을 일률적으로 적용하는 것은 바람직하지 않은 것으로 사료된다.

• 한국수정란이식학회지
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• 제32권2호
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• pp.53-58
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• 2017

It is very difficult to get the information about semen quality analysis in transgenic pigs because of limited numbers and research facilities. Therefore, in the present study, we analyzed the semen quality of transgenic boars generated for xenotransplantation research. Briefly, the semen samples were collected from 5 homozygous ${\alpha}1,3$-Galactosyltransferase knock-out ($GalT^{-/-}$) transgenic boars and immediately transported to the laboratory. These semen samples were decupled with DPBS and conducted to analyze semen parameters by a computer-assisted semen analysis (CASA) system. The boar semen were examined all 12 parameters such as total motility (TM), curvilinear velocity (VCL), straight line velocity (VSL), average path velocity (VAP), and hyperactivated (HYP), etc. In results, among the 5 $GalT^{-/-}$ boars, three boars (#134, 144, and 170) showed normal range of semen parameters, but #199 and 171 boars showed abnormal ranges of semen parameters according to standard ranges of semen parameters. Unfortunately, #171 boar showed azoospermia symptom with rare sperm counts in the original semen. Conclusively, assessment of semen parameters by CASA system is useful to pre-screening of reproductively healthy boar prior to natural mating and artificial insemination for multiplication and breeding.