• Title/Summary/Keyword: volumes

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Differentiation and Distrbution of the Choline Acetyltransferase-immunoreactive Nerve Cells in the Magnocellular Preoptic Nucleus of the Rat Forebrains during the Postnatal Development

  • Chung, Young-Wha;Choi, Yoon-Jin
    • Animal cells and systems
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    • v.1 no.3
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    • pp.483-489
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    • 1997
  • This study was performed to investigate the differentiation and distribution of choline acetyltransferase (ChAT}-immunoreactive cells in the magnacellular preoptic nucleus (MCPO) of the postnatal and adult rat forebrains, utilizing techniques of immunocytochemistry. According to the cell shape and the ratio of long axis versus short axis of cell soma, the ChATimmunoreactive nerve cells in the MCPO were classified into six types: 1) round, 2) oval, 3) elongated, 4) fusiform, 5) triangular, and 6) polygonal types. Frequency distributions of the oval and round nerve cells on the postnatal day (PND) 0 were observed to be high. But in the adult, frequency distributions of the same cells were shown to decrease. Compared to those of the postnatal rats, frequency distributions of elongated, fusiform, triangular, and polygonal nerve cells in the adult were increased. The total mean volumes of ChAT-immunoreactive cell somata in the MCPO of PND 0 rat were the lowest, while those in the PND 17 rat were shown to be the highest and decreased in the adult. The soma volumes of the immunoreactive cells at the PND 17 were evenly distributed, but those in the other developmental stages (e.g. PND 7 and adult) appeared to exhibit unimodal distributions. On the electron micrography, the free ribosomes, polysomes, and rough endoplasmic reticula (RER) of the nerve cells in the MCPO of PND 21 rat forebrains were immunoreactive to ChAT in the tissues untreated with triton X-100. According to the observations in the present study, it is considered that the ChAT-immunoreactive nerve cells in the MCPO of the rat forebrains are differentiated throughout the following processes during the postnatal development: 1) increase in cell soma volumes, 2) development of neurites, 3) increase in the frequency of differentiated cell types, and 4) decrease in cell soma volumes. The ribosomes, polysomes, and RER are considered to be closely related to the intracellular localization and biosynthesis of the ChAT but not Golgi complex.

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Selective Rendering of Specific Volume using a Distance Transform and Data Intermixing Method for Multiple Volumes (거리변환을 통한 특정 볼륨의 선택적 렌더링과 다중 볼륨을 위한 데이타 혼합방법)

  • Hong, Helen;Kim, Myoung-Hee
    • Journal of KIISE:Computer Systems and Theory
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    • v.27 no.7
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    • pp.629-638
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    • 2000
  • The main difference between mono-volume rendering and multi-volume rendering is data intermixing. In this paper, we first propose a selective rendering method for fast visualizing specific volume according to the surface level and then present data intermixing method for multiple volumes. The selective rendering method is to generate distance transformed volume using a distance transform to determine the minimum distance to the nearest interesting part and then render it. The data intermixing method for multiple volumes is to combine several volumes using intensity weighted intermixing method, opacity weighted intermixing method, opacity weighted intermixing method with depth information and then render it. We show the results of selective rendering of left ventricle and right ventricle generated from EBCT cardiac images and of data intermixing for combining original volume and left ventricular volume or right ventricular volume. Our method offers a visualization technique of specific volume according to the surface level and an acceleration technique using a distance transformed volume and the effective visual output and relation of multiple images using three different intermixing methods in three-dimensional space.

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A study on factors affecting staff size of university libraries in Korea (대학도서관 직원규모에 영향을 미치는 요인에 관한 연구)

  • 손정표
    • Journal of Korean Library and Information Science Society
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    • v.21
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    • pp.159-193
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    • 1994
  • This study is to analyze correlations between 14 factors related to university libraries and the number of professional staff, nonprofessional staff, and total library staff. The results of this study are summarized as follows: 1. In the case of 1992, there are high positive correlations between the number of library staff and 10 of 14 variables : the number of undergraduate enrollments, graduate enrollments, departments, faculty members, school employees and volumes in library, size of library building, total university expenditure and library materials expenditure (coefficient: 0.70-0.99). However, there are little significant correlations between the number of library staff and 2 variables : library open hours and university expenditure per student. Among the above factors, the correlations of the total university expenditure and the library expenditure show a significant difference more than ones of the other factors. 2. In the case of the analysis by 3 years interval in 1984-1992, there are high positive correlations between the number of total library employees and 7 of the above 9 variables, excepted to library open hours and 4 factors related to expenditure (coefficient : 0.73-0.93 in 1984;0.77-0.88 in 1988;0.70-0-92 in 1992). But there are little significant differences among the correlation coefficients by each year. 3. In the results of the correlation analysis between the professional staff and the nonprofessional staff, the number of graduate enrollments, departments, volumes in library and school employees, library expenditure and total university expenditure show higher positive correlation to the professional staff than the nonprofessional staff. However, the number of undergraduate enrollments, faculty members, volumes added in library and volumes loaned, size of library building and library materials expenditure show little significant differences in the correlation coefficients between the professional staff and the nonprofessionalstaff.

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The Analysis of Classification Systems of Chojo Tripitaka Koreana and Chojo Print Held by Horim Museum (고려 초조대장경의 분류체계 및 <호림박물관> 소장 초조본의 분석에 관한 연구)

  • Kim, Sung-Soo
    • Journal of Korean Library and Information Science Society
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    • v.37 no.1
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    • pp.405-428
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    • 2006
  • The purpose of this research is to establish the classification system of Chojo Tripitaka Koreana, and analyze the contents of its print held by Horim Museum. Major discussions included are as follows: First, the characteristics and significance of Chojo Tripitaka Koreana are examined. Second, based on Taejang Mongnok, which is the Bibliography of Tripitaka Koreana, the classification system of Chojo Tripitaka Koreana is established. Third, by closely examining 10 titles and 21 volumes of Chojo Print from the collection of Horim Museum, it is proved that its contents and sequences in scriptures of Chojo Print are the same as those of Taejang Mongnok and therefore the classification system in this research is adequately established. Fourth, it is found that in the Avatamska Sutra held by Horim Museum, five volumes of the Avatamska Sutra which originally consists of fifty volumes, are included. And it is also found that in Chaejo Tripitaka Koreana, the Avatamska Sutra, which consists of sixty volumes, were inserted in their place.

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A Study on "Dongchunohji(洞天奧旨)" ("동천오지(洞天奧旨)"에 관한 소고(小考))

  • Kim, Ki-Wook;Park, Hyun-Guk
    • Journal of Korean Medical classics
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    • v.22 no.2
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    • pp.85-99
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    • 2009
  • This book was completed in the 33rd year of Gang-hui-gapsul(康熙 甲戌) in the Cheong(淸) dynasty(1694), and was first inscribed in the 55th year of Geonryung(乾隆). In this first edition named 'Daechudangbon(大雅堂本)', his descendant Jinbonghui(陳鳳輝) wrote the postscript. There are also other editions such as 'Ga-gyeong-ganchwihyeondangbon(嘉慶間聚賢堂本)', 'Wimundanggeonsangbon(緯文堂巾箱本)' and 'Guangseo-ganseonseongdangbon(光緒間善成堂本)' Second, this book was called "Oe-gwabirok(外科秘錄)" and used the pen name 'Gibaekchunsasojeon(岐伯天師所傳)'. There are 16 volumes in total. The beginning of volume one, is a drawing of the 14 meridians. Volumes 1$\sim$4 are on the symptoms and treatment of abscesses and sores and ulcers[癰疽瘡瘍]. Volumes 5$\sim$13 are on surgery, dermatology and 156 diseases such as wounds by contusion, sharp objects and insects and beasts[跌撲, 金刃, 蟲獸傷]. Volumes 14$\sim$16 list the internal treatments, external medicine, acupuncture and moxibustion and surgery of sores and ulcers. Third, the book stressed early detection and treatment of diseases, emphasized inner resolving[內消] being cautious about using medicine, and further deepened the syndrome differentiation and treatment[辨證施治] of sores and ulcers[瘡瘍] by dividing fire toxin(火毒) into Eumhwa and Yanghwa(陰火/陽火). Also, it established the cause of sores and ulcers development as the deficiency of Gi(氣) and blood[血] and focused especially on the liver and kidney's involvement in the process. It also asserted that the pathogen[邪] is the tip[標], so one should eliminate and reinforce[攻補] to balance it out. The sore and ulcer surgery[瘡瘍外科] part is mostly based on detoxifying[解毒] and resolving[消散]. Although the meridians were mentioned, they were not emphasized, while moxibustion treatment of sores and ulcers[瘡瘍] were thoroughly analyzed. Also, of all 550 formulas in this book, 90% are experience-based which frequently use Geum-eunhwa(金銀花), Pogong-yeong(蒲公英) and Jahwajijeong(紫花地丁). The usages are unique, and the formulas have good adaptability. The symptoms of the diseases are explained first, followed by according main and sub treatments.

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Comparison of the three-dimensional structures of mandibular condyles between adults with and without facial asymmetry: A retrospective study

  • Oh, Min-Hee;Kang, Sung-Ja;Cho, Jin-Hyoung
    • The korean journal of orthodontics
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    • v.48 no.2
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    • pp.73-80
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    • 2018
  • Objective: This retrospective study compared the three-dimensional (3D) structure of mandibular condyles between adults with and without facial asymmetry, and whether it influences menton deviation. Methods: Sixty adult patients were classified into symmetry and asymmetry groups based on the menton deviation on postero-anterior radiographs. The right/left differences of 3D measurements were compared between the two groups, and measurements were compared separately on the right and left sides. The correlations between menton deviation and the right/left differences were analyzed. Results: The mediolateral dimension, neck length, condylar angles to the anteroposterior reference (PO) and midsagittal reference planes, and neck and head volumes showed significantly larger right/left differences in the asymmetry group compared to the symmetry group. Separate comparisons of the right and left sides between the two groups showed that the neck was significantly shorter and neck and head volumes were significantly smaller on the left side, which was deviated side in the asymmetry group. Pearson's correlation analysis showed significant positive correlations of menton deviation with right/left differences in neck length, condylar angle to the PO plane, and neck and head volumes in the asymmetry group. Conclusions: In individuals with facial asymmetry, menton deviation is associated with the right/left differences caused by a smaller condyle on the deviated side, particularly in neck length and neck and head volumes.

An Experimental Study on Surfactant Enhanced LNAPL Removal Behavior in Saturated Zone (계면활성제를 이용한 포화지층내 저비중 비수용성 유기용매의 제거거동에 관한 연구)

  • 이재원;박규홍;박준범;임경희
    • Journal of the Korean Geotechnical Society
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    • v.15 no.5
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    • pp.291-300
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    • 1999
  • Surfactant flushing for enhancing the removal of BTEX from contaminated sand/clay mixtures was investigated. Eight soil columns packed with relatively undisturbed BTEX contaminated soils, were leached with water, methyl alcohol and then flushed with surfactant with or without several additives. Initial concentrations of BTEX mixture range from 278mg/kg to 1975mg/kg. Initial BTEX removal efficiency was 98% when the contaminated soil was flushed with water of 850 pore volumes. Because of tailing effect, water flushing could not remove below 8mg/kg concentrations during the experimental period. Eventually, the most effective surfactant for flushing was turned out to be 4% SOFTANOL(equation omitted)-90 with 3% ethyl alcohol and 3% SXS. In interrupted flow conditions, the removal efficiency was 99.5% with the flushed water of 95 pore volumes. The BTEX mixture removed from the soil columns during the surfactant flushing ranges from 84.5% to 99.5% of the initial amount for both water leaching(850 pore volumes) and surfactant flushing(95-165 pore volumes), respectively. Test results indicated that surfactant flushing could enhance the removal of BTEX mixture from contaminated soils and could reduce the aqueous phase BTEX mixture concentration in leachate.

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Quality Characteristics of Fresh Pasta Noodle Added with Red Hot Pepper Juice (홍고추액을 첨가한 생면 파스타의 품질특성)

  • Kim, Jung-Soo;Hong, Jin-Sook
    • Korean journal of food and cookery science
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    • v.24 no.6
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    • pp.882-890
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    • 2008
  • The present study investigated the influence of different volumes of red hot pepper juice on the quality characteristics of fresh Pasta noodle. Supplementation with 0% (control), 2.5%, 5%, 7.5%, or 10% red hot pepper juice produced similar gelatinization characteristics of peak viscosity, temperature at peak viscosity, hot paste viscosity and numerical value of breakdown. However, increasing concentrations of red hot pepper juice produced progressively and significantly low cold paste viscosity and setback. The chromaticity of wet and cooked noodles was significantly lower in L value and significantly higher in +a and +b values with increasing volumes of red hot pepper juice. The texture of fresh noodles displayed no significant differences in hardness, adhesiveness and chewiness. The springiness and cohesiveness were lower and higher with the increase of added red hot pepper juice, respectively, but the differences just attained significance. For cooked noodles, adhesiveness, springiness, cohesiveness and chewiness tended to be higher with increasing volumes of red hot pepper juice, but again the differences just attained significance. Cooking characteristics of weight, volume, moisture absorptive power and turbidity decreased with increasing volumes of red hot pepper juice. Sensory characteristics of acceptability including appearance, color, flavor, taste, texture and overall-acceptability improved with increasing red hot pepper juice volume, in particular with 5% and 7.5%. Amylograph characteristics for initial paste temperature positively correlated with the texture characteristics for chewiness (p<0.05). Negatively correlated amylograph parameters included texture for springiness with for peak viscosity (p<0.01), texture for adhesiveness with hot paste viscosity (p<0.01) and breakdown with texture for adhesiveness, cohesiveness and chewiness (p<0.05).

Comparison Analysis of Donor Liver Volumes Estimated with 3D Magnetic Resonance and 3D Computed Tomography Image Data

  • Kim, Myeong-Seong;Park, Kyeong-Seok;Cho, Jae-Hwan
    • Journal of Magnetics
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    • v.19 no.3
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    • pp.261-265
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    • 2014
  • Three-dimensional computed tomography is an effective tool to estimate the liver volume of living donors for the live liver transplantation. When additional operation is required, magnetic resonance imaging is conducted to determine the safety of the donor. This study compared the accuracy of magnetic resonance imaging and computed tomography in estimating 3D liver volume of 23 male and 7 female donors who underwent both magnetic resonance imaging and computed tomography tests before the transplantation. The analysis was conducted to see whether the liver's estimated total volumes and the left lobe volumes obtained from 3D-magnetic resonance imaging and 3D-computed tomography were identical. Volumes of the right lobe estimated with 3D-magnetic resonance imaging and 3D-computed tomography were compared with the actual volume of the right lobe harvested in the operating room because the volume of the right lobe is an important determinant in the safety of the donor. The total volume of the liver estimated from 3D-magnetic resonance imaging and 3D-computed tomography differed (1238.1904 units and 1402.364 units respectively). The left lobe volume of the liver estimated with 3D-magnetic resonance imaging and 3D-computed tomography also differed (450.530 units and 554.490 units, respectively). The right lobe volume of the liver estimated with 3D-magnetic resonance imaging and 3D-computed tomography were 787.660 units and 847.545 units, respectively, while the actual average right lobe volume of the harvested liver was 678.636 units. 3D-computed tomography has been widely used to estimate the right lobe volume of the donors' liver. However, 3D-magnetic resonance imaging was also very effective in estimating the volume of the liver. Thus, 3D-magnetic resonance imaging is also expected to become an important tool in determining the safety of the donors before transplantation.