• 한국어류학회지
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• 제8권1호
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• pp.49-55
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• 1996

무지개송어, Oncorhynchus mykiss 난황자어의 부상기 이전까지의 부화일수에 따른 전장(TL)성장식은 $TLt=2.7e^{-1.24{\cdot}e^{-0.11t}}(r^{2}=0.66)$, 전중(TW)성장식은 $TWt=1.8e^{-2.03{\cdot}e^{-0.11t}}(r^{2}=0.66)$, 체세포중량(SW)성장식은 $SWt=1.8e^{-5.41{\cdot}e^{-0.13t}}(r^{2}=0.83)$로 나타났다. 부화일수 경과에 따른 난황장, 난황고, 난황부피는 감소를 나타내는 직선식이였다. 전중-전장, 체세포중량-전장, 난황장-전장, 난황고-전장, 난황부피-전장, 난황중-전장, 난황중-전중, 난황중-난황고 및 난황중-난황장의 성장형질간의 상대성장식은 부화일 경과에 따라 난황홉수 경향을 반영하였다.

• 대한의용생체공학회:의공학회지
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• 제31권4호
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• pp.285-291
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• 2010

Recently, advance on various modalities of diagnosing, prostate volume estimation became possible not only by the existing two-dimension medical images data but also by the three-dimensional medical images data. In this study, magnetic resonance image (MRI), computer tomography (CT) and ultrasound (US) were employed to evaluate prostate phantom volume measurements for estimation, comparison and analysis. For the prostate phantoms aimed at estimating the volume, total of 17 models were developed by using devils-tongue jelly and changing each of the 5ml of capacity from 20ml to 100ml. For the volume estimation through 2D US, the calculation of the diameter with C9-5Mhz transducer was conducted by ellipsoid formula. For the volume estimation through 3D US, the Qlab software (Philips Medical) was used to calculate the volume data estimated by 3D9-3Mhz transducer. Moreover, the images by 16 channels CT and 1.5 Tesla MRI were added by the method of continuous cross-section addition and each of imaginary prostate model's volume was yielded. In the statistical analysis for comparing the availability of volume estimation, the correlation coefficient (r) was more than 0.9 for all indicating that there were highly correlated, and there were not statistically significant difference between each of the correlation coefficient (p=0.001). Therefore, the estimation of prostate phantom volume using three-dimensional modalities of diagnosing was quite closed to the actual estimation.

• 대한수의사회지
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• 제26권1호
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• pp.38-42
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• 1990

The effect of Aloe vera administration(500mg/kg, P.O.) for 21 days on the total white blood cell, packed cell volume, hemoglobin, total protein, serum glutamic pyruvic transaminase and sorbitol dehydrogenase values in cobalt-60 gamma irradiated rats was s

• Investigative Magnetic Resonance Imaging
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• 제8권1호
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• pp.17-23
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• 2004

목적 : 이차원 위상대조 자기공명영상을 이용하여 나이변화와 뇌실질 부피변화 및 혈관이상의 정도에 따른 총뇌혈류량의 변화를 알고자 하였다. 대상 및 방법 : 12명의 지원자를 포함한 73명을 대상으로 T2강조 영상과 Time-of-flight 방법의 자기공명혈관촬영과 이차원 위상대조 자기공명영상을 얻었다. 정상군은 지원자 12명과 자기공명영상 및 자기공명혈관촬영에서 정상소견을 보인 21명으로서 이들은 18-29세, 30-49세, 50-66세 군으로 나누었다. 비정상군은 T2강조영상의 뇌실질부피 변화정도와 자기공명 혈관촬영의 동맥경화 정도에 따라 mild reduction군(17명) , marked reduction군(12명)으로 나누었고, 뇌실질이 증가한 increased volume군(6명)과 Moya-moya군(5명)으로 분류하였다 뇌혈류는 위상대조 자기공명영상의 속도-혈류 곡선으로부터 양쪽 내경동맥과 추골동맥에서 측정하고 합하여 뇌의 총뇌혈류량으로 하였으며, 각군 사이의 혈류량을 비교 관찰하였다. 결과 정상군의 총뇌혈류량은 18-29세군은$12.0{\pm}2.1ml/sec$, 30-49세군은 $11.8{\pm}1.9m1/sec$, 50-66세군은 $10.9{\pm}2.2ml/sec$였다. 비정상군 중에서 mild reduction 군은 $9.5{\pm}2.5ml/sec$, marked reduction 군은 $7.6{\pm}2.0ml/sec$, increased volume군은 $7.3{\pm}1.2ml/sec$, Moya-moya군은 $7.0{\pm}1.1ml/sec$였다. 결론 : 총뇌혈류량은 나이 증가에 따라 감소하였고, 뇌실질부피 감소와 동맥경화 정도에 따라 감소하였으며 increased volume군과 Moya-moya군에서도 감소하였다. 이차원 위상대조 자기공명영상은 나이변화나 뇌실질의 부피변화와 혈관이상을 초래하는 다양한 뇌질환에서 총뇌혈류량을 관찰할 수 있는 유용한 방법이라고 생각된다.

• 동의생리병리학회지
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• 제19권6호
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• pp.1610-1614
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• 2005

The purpose of this study is to observe the effects of Chaenomelis Fructus Herba Chelidonii Clematis Florida Thunb mixed water extract on the inflammatory edema induced by Found's complete adjuvant and on different blood volume, and then to demonstrate its efficiencies as well as its safety. We injected Chaenomelis Fructus Herba Chelidonii Clematis Florida Thunb mixed water extract on the inflammatory edema induced by Found's complete adjuvant once daily at the same time for a week, then observed the paw-edema, the counts of the blood WBC, Serum total protein, Serum total bilirrubin, SGOT and SGPT The result obtained is as follows : Inflammatory edema on the right plantar in both sample groups showed a significant reduce compared with that in the control group. The counts of WBC in both sample groups showed a significant decrease compared with that in the control group. The volume of serum total protein in the Sample A group showed a significant decrease compared with that in the control group. The volume of serum total bilirrubin, GOT and GPT in both sample groups was not changed compared with that in the control group. As a result of this experiment, it is concluded that Chaenomelis Fructus Herba Chelidonii Clematis Florida Thunb mixed water extract showed that therapeutic effect on the anti-inflammation on arthritis; otherwise it showed non-toxic effect on the liver function.

• 한국수자원학회논문집
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• 제36권3호
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• pp.455-464
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• 2003

본 연구에서는 지하 빗물저류시설 설치에 따른 유출저감 효과를 분석하기 위하여 실험실내 모형 빗물저류장치를 설치하여 강우강도 변화, 표층의 피복상태 변화, 표면경사 변화에 따른 유출량 변화 실험을 실시하였다. 실험결과 대상하천인 승기천의 토양조건하에서 강우강도가 40mm/hr-100mm/hr일 때 총유출량 감소는 42.3-52.9%로 나타났으며, 지하 빗물저류시설을 설치하는 경우 총유출량과 첨두유량의 감소를 가져올 수 있을 것으로 판단된다. 경사변화에 따른 총유출량의 변화는 완만한 경사에서는 매우 크게 나타났으나 3%이상의 급경사에서 침투에 의한 저류량에 변화가 적고, 이는 산지와 같은 급경사지역에 빗물저류시설을 설치하는 경우 장기간의 홍수에 대하여 상당한 효과를 나타내는 것으로 나타났다. 따라서, 본 시스템은 하천이나 산지의 급경사에도 큰 결과를 기대할 수 있다.

• 대한의용생체공학회:학술대회논문집
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• 대한의용생체공학회 1997년도 춘계학술대회
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• pp.161-162
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• 1997

It is very useful to perform the surgery simulation before implanting TAH(Total Artificial Heart} in a patient. The space of chest and the shape of vessels are different from patient to patient. So, It is desirable to customize a TAH design to the anatomy structure of a patient. Several studies are performed to visualize and explain the 3D structure of heart. These studies are performed using 2-dimensional ref or mated images and simple measurement. Anatomy structure of a human heart is not so simple. It is 4dimensional structure ; 3-dimensional plus time, heart beating. 3-dimensional reconstruction schemes of medical images developed for about 10 years are usually categorized into two types of rendering technique ; surface rendering and volume rendering. Volume rendering is preferable in medical image processing field because this technique can be applied without considering the complexity of geometry and change of field of interest. The usable space in the chest of patient can be measured by 3D volume matching of patient trunk and TAH model. This space changes with time. In this research we have developed the 4-dimensional volume match program of patient and TAH model. 3-dimensional rendered set of volumes along time were used to simulate TAH fitting trial. The quantitative measurement from this simulation could be applied to customize TAH design.

• 화약ㆍ발파
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• 제21권1호
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• pp.41-47
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• 2003

도로, 항만, 터파기 등의 공사에서 대량의 발파 작업이 선행되는 경우가 빈번하다. 발파작업은 시공을 맡은 원청 회사측에서 직접 행하는 수도 있지만 대개는 전문적으로 발파를 시행하는 업체에게 하청을 주게 마련이다. 이럴 경우 종종 발파작업이 완료된 이후 원청회사와 하청회사 사이에 발파작업 수량에 대한 원만한 합의를 보지 못할 경우가 있는 이럴 경우 쌍방 혹은 쌍방이 위임한 제3자가 발파작업 수량을 추정하게 된다. 사후에 발파작업수량을 추정하는 방법으로는 일위대가표를 적용한 추정, 시행된 발파의 비장약량을 적용한 추정, 발파작업일보를 비교하여 뇌관당 발파암량을 적용하는 방법들이 있다. 본 연구에서는 특정한 사례를 통하여 뇌관당 발파암량을 적용하여 발파작업수량을 추정하는 방법을 소개하고 이 방법이 다른 여타의 추정 방법에 비하여 가장 신회성이 높음을 입증하였다.

• 한국의류산업학회지
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• 제15권2호
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• pp.240-246
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• 2013

Data from 540 subjects (included in the obesity group whose BMI was over 25) was selected from 2,445 subjects in the $6^{th}$ Korean Body Size Survey. A total of 25 direct measurements were selected for the relevant literature lower body size measurement analysis, that included 9 components related to BMI, height and circumferences, 3 components related to width and thickness, 5 components related to length, 3 components related to height, and 2 other components. Descriptive statistics, factor analysis, cluster analysis and variance analysis were executed using PASW 18.0 to analyze the data. In accordance with the factor analysis results to classify the lower body shape of overweight women in their 20s to 60s whose BMI was over 25, 4 factors were identified (lower body volume, leg volume, lower body length and leg length). A total of 4 lower body shapes of overweight women were found through cluster analysis using 4 factor scores from the factor analysis. Body Shape 1 had the largest lower body and leg volume. It was the heaviest group. Leg length was at a normal level. Body Shape 1 was 22.2% (122 subjects). Body Shape 2 had the longest legs and the smallest body shape; however, Body Shape 2 was the leg obesity group with the largest leg volume. It was 39.8% (215 subjects). Body Shape 3 had a smaller leg volume in proportion to the lower body thickness and a long lower body length. It comprised 27.8% (150 subjects). Body Shape 4 comprised 9.8% (53 subjects) with the shortest leg. Its lower body obesity was at a normal level.

• Investigative Magnetic Resonance Imaging
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• 제19권1호
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• pp.1-9
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• 2015

Purpose: Several morphometric studies have been performed to investigate brain abnormalities in congenitally deaf people. But no report exists concerning structural brain abnormalities in congenitally deaf adolescents. We evaluated the regional volume changes in gray matter (GM) using voxel-based morphometry (VBM) in congenitally deaf adolescents. Materials and Methods: A VBM8 methodology was applied to the T1-weighted magnetic resonance imaging (MRI) scans of eight congenitally deaf adolescents (mean age, 15.6 years) and nine adolescents with normal hearing. All MRI scans were normalized to a template and then segmented, modulated, and smoothed. Smoothed GM data were tested statistically using analysis of covariance (controlled for age, gender, and intracranial cavity volume). Results: The mean values of age, gender, total volumes of GM, and total intracranial volume did not differ between the two groups. In the auditory centers, the left anterior Heschl's gyrus and both inferior colliculi showed decreased regional GM volume in the congenitally deaf adolescents. The GM volumes of the lingual gyri, nuclei accumbens, and left posterior thalamic reticular nucleus in the midbrain were also decreased. Conclusions: The results of the present study suggest that early deprivation of auditory stimulation in congenitally deaf adolescents might have caused significant underdevelopment of the auditory cortex (left Heschl's gyrus), subcortical auditory structures (inferior colliculi), auditory gain controllers (nucleus accumbens and thalamic reticular nucleus), and multisensory integration areas (inferior colliculi and lingual gyri). These defects might be related to the absence of general auditory perception, the auditory gating system of thalamocortical transmission, and failure in the maturation of the auditory-to-limbic connection and the auditorysomatosensory-visual interconnection.