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Geological Structure and Mineralization in the Vophi Bum Cr Mineralized Zone, NW Myanmar (미얀마 북서부 보피붐 크롬광화대의 지질구조와 광화작용)

  • Ryoo, Chung-Ryul;Heo, Cheol-Ho;Aung, Zaw Linn
    • The Journal of the Petrological Society of Korea
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    • v.24 no.4
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    • pp.307-321
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    • 2015
  • The study area, Bophi Vum, Myanmar, is composed of the harzburgite, serpentinite and dunite, those are covered by Quaternary alluvium. The chromite ore bodies are developed within dunite and harzburgite bodies, mainly within dunite bodies. To identify the extension of the chromite ore bodies, we carried out trench surveys in the 5 different sites. The chromite ore bodies have 0.3-1.5 m wide, and several meters of extension, and deformed strongly as a sigmoid and a boudin shapes with dunite and harzburgite bodies by ductile deformation. The ductile deformation have a top-to-the-west shear sense, indicating the existence of a westward thrusting. The NW-SE trending distribution of ore bodies is related to the dextral ductile shearing and/or to the block rotation as a book-shelf structure by dextral strike-slip movement.

Chemical Constituents from the Fruit Bodies of Tricholoma matsutake (송이(Tricholoma matsutake) 자실체의 화학성분)

  • Lee, Hak-Ju;Choi, Yun-Jeong;Ka, Kang-Hyeon;Bak, Won-Chul
    • Journal of the Korean Wood Science and Technology
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    • v.31 no.4
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    • pp.63-70
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    • 2003
  • One alkaloid derivatives, one amide and two steroids were isolated from the fruit bodies of Tricholoma matsutake. The structures were determinded as adenosine, methyl trans-cinnamate, ergosterol and ergosta-4, 6, 8 (14), 22-tetraen-3-one, respectively, on the basis of spectroscopic data.

Comparison of productivity among various spawn shapes of middle-temperature type strain for sawdust cultivation of Shiitake (표고 톱밥재배시 중온성 품종의 종균 형태에 따른 생산성 비교)

  • Lee, Bong-Hun;Bak, Won-Chull;Ka, Kang-Hyeon;Ryu, Sung-Ryul
    • Journal of Mushroom
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    • v.6 no.1
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    • pp.38-41
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    • 2008
  • Studies were processed to confirm the difference of the shiitake productivity according to different spawn shapes(sawdust, plug-shaped and liquid spawns) on middle-temperature type strain. A tendency of fruiting was similar among three treatments, and treatments inoculated with plug-shaped spawn and liquid spawn produced over 50 % of total yield until 2nd flushing period and 80 % of total yield until 4th flushing period. In investigation of deformed fruit-bodies, all of three treatments occurred until 2nd flushing period. However, in rate of deformed fruit-bodies, treatment inoculated with liquid spawn was lower than others. In investigation of yield, the amount produced on treatment inoculated with liquid spawn was 411 g per medium and it was highest among treatments. And the amount of fruit-bodies over 10 g was higher than others. Also, the number of fruit-bodies between sawdust and plug-shaped spawn was different, but each weight of fruit-bodies among three treatments was not different.

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Chemical Constituents from the Fruit Bodies of Lentinula edodes (표고(Lentinula edodes) 자실체의 추출성분)

  • Lee, Hak-Ju;Yoon, Kab-Hee;Bak, Won-Chull
    • Journal of the Korean Wood Science and Technology
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    • v.31 no.2
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    • pp.24-30
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    • 2003
  • Three nucleotides, one amide, acid and steroid, were isolated from the fruit bodies of Lentinula edodes. The structures were determined as adenosine (9-𝛽-D-ribofuranosyladenine), uridine (1-𝛽-D-ribofuranosyluracil), uracil (2, 4-pyrimidinedione), nicotinamide, p-hydroxybenzoic acid and ergosterol (ergosta-5, 7, 22-triene-3𝛽-ol), respectively, on the basis of spectroscopic data and chemical correlations.

Colonoscopic Diagnosis and Treatment of Colonic Obstruction by the Leaves in a Dog (개에서 발생한 나뭇잎에 의한 대장폐색의 대장 내시경적 진단 및 치료)

  • Shin, Beom-Jun;Lee, Jae-Yeon;Kim, Soo-Hyun;Park, Ji-Young;Choi, Ho-Jung;Lee, Yeong-Won;Kim, Myung-Cheol;Jeong, Seong-Mok
    • Journal of Veterinary Clinics
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    • v.27 no.1
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    • pp.113-116
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    • 2010
  • A 6-years-old 30 kg male Germen Shepherd dog was presented with the history of abdominal pain, intermittent vomiting and anorexia. Abdominal survey radiography and ultrasonography revealed marked colonic distention. Positive contrast radiography revealed a colonic obstruction between the transverse colon and descending colon. Foreign bodies were identfied during colonoscopy. The descending colon was inflated by the air of endocope then foreign bodies were moved to the descending colon. Foreign bodies were removed by the enema. The dog's clinical signs resolved following foreign body removal.

VIP IMMUNOREACTIVITY IN THE RAT TRIGEMINAL GANGLION AFTER INFERIOR ALVEOLAR NERVE AXOTOMY (하치조신경 절단 후 흰쥐 삼차신경절에서 VIP-IR의 변화)

  • Kim, Heung-Joong;Park, Joo-Cheol;Kim, Hyun-Sub;Moon, Joo-Hoon
    • Restorative Dentistry and Endodontics
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    • v.25 no.2
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    • pp.225-234
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    • 2000
  • The purpose of this study was to investigate the distribution and fluorescene intensity of vasoactive intestinal polypeptide(VIP) immunoreactive cells in rat trigeminal ganglion after inferior alveolar nerve axotomy. The animals were divided into normal and two experimental groups. The experimental animals were sacrificed at 14th and 28th day after inferior alveolar nerve axotomy. The trigeminal ganglion was removed and immersed in the 4% paraformaldehyde-0.2% picric acid in 0.1M phosphate buffer. Serial frozon sections about $16{\mu}m$ in thickness were cut with a cryostat. The immunofluorescence staining was performed. The rabbit anti-VIP(1 : 8,000) was used as primary antibody and fluorescene isothiocynate(FITC)-conjugated anti-rabbit IgG(1 : 80) as secondary antibody. The slides were observed under confocal laser scanning microscope. Three-dimensional images were constructed from 9 serial images(each $1{\mu}m$ in thickness) made by automatic optical sectioning. Unprocessed optical sections were obtained and stored on a optical disk. Color picture were printed by a video copy processor. The results were as follows; 1. The appearance of VIP immunoreactive cells in the mandibular part of trigeminal ganglion was 8.79${\pm}$1.99% in normal group and 39.16${\pm}$5.62% in 14 days, 16.25${\pm}$2.39% in 28 days after inferior alveolar nerve axotomy groups. 2. The relative fluorescence intensity of VIP immunoreactive cell bodies in the mandibular part of trigeminal ganglion was 134.40${\pm}$10.39 in normal group and 192.88${\pm}$14.06 in 14 days, 143.10${\pm}$5.02 in 28 days after nerve axotomy groups. Therefore, the relative fluorescence intensity of 14 days after nerve axotomy group was 43.3% higher than intensity of normal group. 3. In optical single section analysis of VIP immunoreactive cell bodies, white cell bodies(moderate fluorescence intensity) were the most abundant in normal and 28 days after nerve axotomy groups. Whereas, in 14 days after nerve axotomy group, red cell bodies(high fluorescence intensity) were the most abundant. 4. In optical serial section analysis of VIP immunoreactive cell bodies, red cell bodies(high fluorescence intensity) were observed in a part of the 9 sections of normal and 24 days after nerve axotomy groups. Whereas, red cell bodies were observed in all of the 9 sections of 14 days after nerve axotomy group. 5. The results indicates that number and fluorescence intensity of VIP immunoreactive cells were increased in the mandibular part of trigeminal ganglion following inferior alveolar nerve axotomy.

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A Motion Response Analysis of a Floating Body of Barge-type in Stokes Waves (Stokes 파 중의 바지형 부유체의 운동 응답 해석)

  • Lee, Seung-Chul;Goo, Ja-Sam
    • Journal of Power System Engineering
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    • v.21 no.1
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    • pp.18-23
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    • 2017
  • The Stokes waves representing the deep sea waves are expressed as a superposition of several linear waves. To evaluate the motions of floating bodies in the deep seas, it is necessary to evaluate the motions of the bodies in the Stokes waves. The 5th-order Stokes waves are expressed as a superposition of 5 linear waves. Therefore, the motion responses of the bodies in the Stokes waves would be expressed as a superposition of the motion responses of the bodies in the each linear waves. In this research, The experimental results were compared with the numerical results in linear waves and Stokes waves.

A Study of Performance and Internal Flow in a New Type of Sewage Pump

  • Nishi, Yasuyuki;Fukutomi, Junichiro
    • International Journal of Fluid Machinery and Systems
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    • v.2 no.3
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    • pp.239-247
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    • 2009
  • Sewage pumps are designed with a wide flow channel by, for example, sacrificing some efficiency and reducing the number of blades, in order to prevent plugging with foreign bodies. However, the behavior of foreign bodies which actually flow into a pump is extremely complex, and there are questions about whether the presumed foreign bodies will actually pass through. This paper proposes a new type of sewage pump impeller designed to further improve pump efficiency and performance in passing foreign bodies. This sewage pump impeller has a structure in which the suction flow channel of a closed type non-clog pump is wound in a helical spiral. The focus of this research was to investigate pump performance and internal flow in this single blade sewage pump impeller. The results clearly indicated the following facts: The developed sewage pump impeller exhibits high efficiency over a wide range of flow rates; internal flow of the pump is very complicated; and the internal flow state varies greatly when the flow rate changes.

Added Mass of Submerged Bodies Obtained by Forced Oscillation Tests and Numerical Calculations of Potential Flow (수중운동체의 강제동요시험 및 포텐셜 계산에 의한 부가질량 추정)

  • Kim, Dong Jin;Lee, Gyeong Joong;Kwon, Chang Seop;Kim, Yeon Gyu;Park, Jin-Yeong;Jun, Bong-Huan
    • Journal of the Society of Naval Architects of Korea
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    • v.59 no.4
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    • pp.214-224
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    • 2022
  • It is necessary to estimate manoeuvring characteristics of submerged bodies at the design stage in order to ensure the safe operations. In this study, added mass coefficients in the mathematical model of submerged bodies are estimated by captive model tests and numerical calculations. Two kinds of models, MARIN 'BB2'submarine model and AUV (Autonomous unmanned vehicle) model are utilized in the forced oscillation tests. Compared to BB2 submarine, AUV with cylindrical type hull form shows relatively small added masses in roll, pitch, and yaw directions. Next, numerical calculations based on potential theory are performed under the assumption that viscous effects on inertia forces are negligible. Added masses obtained by numerical calculations are in good agreements with forced oscillation test results. And if slow manoeuvres of submerged bodies are presumed, some of velocity coupled terms can be approximated by combinations of added mass coefficients.

Determination of the Synthetic Time and the Transport Pattern of Vicilin and Legumin in Ginseng Endosperm Cell Using Double Immunogold Labeling (이중 면역금입자 표지법을 이용한 인삼 배유세포내 Vicilin과 Legumin의 합성시기 및 수송방식)

  • Lee, Chang-Seob;Yu, Seong-Cheol;Kim, Woo-Kap
    • Journal of Ginseng Research
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    • v.19 no.3
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    • pp.267-274
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    • 1995
  • Vicilin and legumin, the storage Proteins of seed, were Purified from ginseng (Panax ginseng C.A. Meyer) endosperm cells. They were immunized in rabbits, and antibodies were raised respectively. Using these two antibodies, double immunogold labeling of vicilin and legumin was carried out to determine the gap of synthetic time and the transport pattern of vicilin and legumin in the ginseng endosperm cells. Vicilin and legumin were synthesized at the same time at early embryo developmental stage. They were secreted from the Golgi bodies and accumulated into the small vacuoles. As the endosperm cells developed, vicilin and legumin localized in the small vacuoles were gradually transported toward the large central vacuole where they were stored. Protein bodies were derived from the vacuoles filled with proteins and distributed in the endosperm cells of mature red seed. Protein bodies were various in size from 1 to 8 ${\mu}{\textrm}{m}$ in which vicilin and legumin were mixed each other. The number of small particles labeled on the vicilin was greater than that of large particles labeled on the legumin in the protein bodies indicating that the amount of vicilin is higher than that of legumin in the protein bodies.

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