• Title/Summary/Keyword: Bulb

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A Study on the Development of Standardization Tester for the Field Inspection of the Rate of Rise Spot Type Heat Detector (차동식스포트형열감지기 현장점검용 표준화기기 개발에 관한 연구)

  • Kim, Shi-Kuk;Yuk, Hyun-Dai;Yang, Seung-Hyun;Jee, Seung-Wook;Lee, Chun-Ha
    • Fire Science and Engineering
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    • v.23 no.3
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    • pp.85-92
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    • 2009
  • This paper studied on the development of standardization tester for the field inspection of the rate of rise spot type heat detector. It was to find the problems of the 4 type's testers such as A type (electric bulb type), B type (halogen lamp type), C type (heating coil type), D type (fumigator type) which were used to check of the rate of rise spot type heat detector in inspection for the fire protection. To identify those problems, this paper described about the development of standardization tester for the field inspection of the rate of rise spot type heat detector and that have the function of auto setting temperature more $30^{\circ}C$ higher than room temperature and keep the constant temperature. And keep the constant wind velocity of 85cm/sec. Performance verification results of the developed prototype that had same conditions such as the sensitivity test conditions at the type approval of the rate of rise spot type heat detector.

Breeding of a New Asiatic Lily 'Onnuri' for Cut and Pot Flower (절화 및 분화용 아시아틱 나리 '온누리' 육성)

  • Jin, Sung-Yong;Kim, Hee-Jun;Choi, So-Ra;Lee, Jin-Jae;Cho, Hong-Ki;Jang, Ik;Kim, Jeong-Man;Jeong, Jong-Seong
    • FLOWER RESEARCH JOURNAL
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    • v.18 no.3
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    • pp.207-210
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    • 2010
  • An Asiatic lily (Lilium spp.) cultivar 'Onnuri' for cut and pot flower was developed in 2006 at Jeollabukdo Agricultural Research & Extension Services, Iksan, Korea. The cross was made in 1999 between 'Avignon', orange colored, and 'Nove Cento', yellow colored. A line was preliminarily selected as 'A99-6-48' by reason of stable flower color and shape among germinated seedlings. It had been multiplicated through in vitro culture and then bulbed on field during 2002~2003. After characteristics were investigated from 2004 to 2005, finally it was named as an 'Onnuri' in 2006. Flower of 'Onnuri' belongs to orange-red group with its center shown orange group. Plant height is 92.8 cm, flower size is medium as 13.8 cm. Stigma color is red-brown and blooming direction is upward-facing. Flowering time is mid-June.

Effect of MS Medium Strength, Sucrose Concentration, and Light Condition on Bulblet Formation and Growth of Muscari armenicum In Vitro (MS 배지내 무기물 농도, 당 농도 및 광 조건이 무스카리의 기내 자구 형성과 비대에 미치는 영향)

  • Chung, Mi-Young;Kim, Chang-Kil;Chung, Jae-Dong
    • FLOWER RESEARCH JOURNAL
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    • v.19 no.1
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    • pp.49-54
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    • 2011
  • The influences of MS medium strength, sucrose concentration, and light condition on bulblet formation and growth were studied in leaf tissue culture of Muscari armenicum 'Early Giant'. Bulblet formation from leaf segments were the most effective on MS medium supplemented with $0.01mg{\cdot}L^{-1}$ NAA, $0.2m{\cdot}L^{-1}$ kinetin, $30g{\cdot}L^{-1}$ sucrose, and $8g{\cdot}L^{-1}$ gelrite under darkness for 2 weeks followed by 16 hr photoperiod with a photosynthetic photon flux density of $50mol{\cdot}m^{-2}{\cdot}s^{-1}$. However the compactness of bulblets formed in vitro was promoted in the MS medium with $60gL^{-1}$ sucrose. Acclimatized plants flowered during the second year of the growing period without any phenotypic variations and formed average 1.5 bulblets per mother bulb.

A Study on the Grouting Characteristics of Top-down Multi-step Pressure Grouting Method (하향식 다단 압력 그라우팅 방법의 주입특성에 대한 연구)

  • Lee, Hongsung;Lee, Seungho
    • The Journal of Engineering Geology
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    • v.29 no.3
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    • pp.201-209
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    • 2019
  • Bottom-up multi-stage pressure grouting is widely applied to domestic slopes and tunnels. It involves injecting earth from the ground to the surface after drilling. Various reports of construction performance have demonstrated its wide applicability. However, little research has studied top-down multi-step pressure grouting in Korea, which involves injection from the surface. This paper compares the grouting effect of both the established bottom-up method and the top-down method in soil box and field tests. The soil box test showed that the bulb volume of the top-down method is ~24% less than that of the bottom-up method. The field test confirmed that the top-down method has a wider grouting range and a higher injection density per area than the bottom-up method.

Remote monitoring system of a vinyl house by web and Labview (Labview와 웹을 활용한 비닐하우스 원격감시 시스템)

  • Park, Sang-gug
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2009.05a
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    • pp.725-728
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    • 2009
  • This paper describes remote monitoring system for the various environments of a vinyl house, which was located in rural or outer of urban by use internet web connection system in a long distance office. We have constructed remote monitoring system by use a simple experimental model for the monitoring of various factors which need to operate common vinyl house. The experimental model includes temperature, humidity, smoke and infrared sensors for the measuring and AC 220V light bulb for the controlling in the USN system. Also, we have developed monitoring software by use NI Labview and communicate between PC and sensors through the DAQ-board, USN control board. We use CCD camera and grab board for the real time remote monitoring of wanted image in the house area. The computer server for remote connection is constructed in the local PC with Apache web server, PHP and MySQL ODBC. We construct internet communication system for the monitoring remotely the local environments of a vinyl house system.

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A Study on the Effectiveness of Bulbous Bow Streamline to the Ship Resistance for Large Full Form Ship (비대선에서 구상선수 주위 유선의 방향이 선박 저항에 미치는 영향에 관한 연구)

  • S.W. Hong;K.J. Lee
    • Journal of the Society of Naval Architects of Korea
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    • v.31 no.1
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    • pp.50-62
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    • 1994
  • This paper presents the results of a comparative analysis of the model test results to investigate the effect of bulbous bow installed on a large full form ship to the ship resistance performance. Seven parameters related to the shape of bulbous bow were selected and varied systematically to inquire their effects experimentally. A total number of twenty-three ship models with different bulbous bow were manufactured, and resistance tests. flow visualization test, and wave profile measurement were carried out for each model. For the comparative analysis between the various bulb forms and their model test results, bulbous bow forms are classified into nine groups according to their form characteristics. From the analysis of the trend of the resistance components, it was verified that form resistance has dominant effect on the total resistance of a slow full form ship. The model test and its statistical analysis showed that the direction of streamlines around bulbous bow has close relationship with resistance components. especially with form resistance

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A Literature Review on the Recent Tendency of the Treatment about Atypical Hyperplasia of Breast on the Chinese Herbal Medicine (비정형유방증식에 대한 최근 중의 약물치료 동향에 대한 문헌연구)

  • Kim, Jun-Hee;Lee, In-Seon
    • The Journal of Korean Obstetrics and Gynecology
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    • v.33 no.1
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    • pp.36-58
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    • 2020
  • Objectives: We conducted a literature study on the treatment trends in China to find out the possibility of Oriental medicine treatment of atypical hyperplasia of breast (AHB). Methods: RCTs (randomized controlled trial) on AHB were collected from CNKI (China National Knowledge Infrastructure). The search words were "乳腺增生", "乳腺囊性增生", "乳癖", "中医", "中药" and "中西医结合". The search period was limited from July 2006 to May 2017. Finally, we selected 107 RCTs which were clinical studies to find out the effectiveness of Chinese herbal medicine in comparison with Western medicine. After reviewing, we investigated Chinese herbal medication guide, Chinese treatment method and prescriptions. And the correlation between the treatments and the medicinal herbs was investigated to be useful in the clinical practice. Results: 1. The administration of herbal medicine was 58.9 percent in 63 cases, followed by menstrual cycles, and 41.1 percent in 44 cases, regardless of menstrual cycles. 2. In the basic frequency analysis between the treatment and the medicinal herb, the frequency of dissipate binds (散結) was the highest. Next, there was a high frequency of therapies such as activating blood-activating (活血), relieve pain (止痛), soothe the liver (疏肝), regulate qi (理氣), resolve phlegm (化痰), soften hardness (軟堅), resolve depression (解鬱), move qi (行氣) of frequency was high. In herbal medicine, bupleuri radix (柴胡), cyperi rhizoma (香附子), angelicae gigantis radix (當歸), fritillaria thunbergii bulb (貝母), paeoniae radix alba (白芍藥), prunellae spica (夏枯草), corydalis rhizoma (玄胡索) showed high frequency. 3. We finded out the correlation between the frequent treatment methods and the medicinal herbs using Text Mining. Conclusions: These findings are thought to help implement Korean traditional medicine treatments for AHB.

Detection of Gnathostoma spinigerum Advanced 3rd-Stage Larvae in the Chinese Edible Frog, Hoplobatrachus rugulosus, from Local Markets in Phnom Penh, Cambodia

  • Sohn, Woon-Mok;Jung, Bong-Kwang;Hong, Sooji;Ryoo, Seungwan;Lee, Keon Hoon;Khieu, Virak;Chai, Jong-Yil
    • Parasites, Hosts and Diseases
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    • v.59 no.5
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    • pp.519-522
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    • 2021
  • The Chinese edible frogs, Hoplobatrachus rugulosus (n=20), and the striped snakehead fish, Channa striata (n=34), were purchased from local markets in 3 administrative regions of Cambodia (Phnom Penh, Pursat, and Takeo Provinces) from May 2017 to April 2019, and their infection status with Gnathostoma sp. larvae was investigated. The frogs and fish were transported to the laboratory with ice and examined using the artificial digestion method. Advanced 3rd-stage larvae (AdL3) of Gnathostoma spinigerum, 24 in total number (1-6 larvae/frog), were detected from 6 (60.0%) out of 10 frogs purchased from Phnom Penh. No gnathostome larvae were detected in 10 frogs purchased from Takeo Province and 34 snakeheads from Phnom Penh, Pursat, and Takeo Provinces. AdL3 isolated from the frogs were 2.55-3.90 mm long and 0.31-0.36 mm wide. They had a characteristic head bulb (0.081×0.191 mm in average size) with 4 rows of hooklets, a muscular long esophagus (0.950-1.230 mm long), and 2 pairs of cervical sacs (0.530-0.890 mm long). The average number of hooklets in the 1st, 2nd, 3rd, and 4th rows was 41, 45, 48, and 51, respectively. These features were consistent with G. spinigerum AdL3. By the present study, it has been first confirmed that the Chinese edible frog, H. rugulosus, from Phnom Penh serves as a second intermediate host for G. spinigerum, although their intensity of infection was not so high compared to other previously reported localities.

C1qa deficiency in mice increases susceptibility to mouse hepatitis virus A59 infection

  • Kim, Han-Woong;Seo, Sun-Min;Kim, Jun-Young;Lee, Jae Hoon;Lee, Han-Woong;Choi, Yang-Kyu
    • Journal of Veterinary Science
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    • v.22 no.3
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    • pp.36.1-36.12
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    • 2021
  • Background: Mouse hepatitis virus (MHV) A59 is a highly infectious pathogen and starts in the respiratory tract and progresses to systemic infection in laboratory mice. The complement system is an important part of the host immune response to viral infection. It is not clear the role of the classical complement pathway in MHV infection. Objectives: The purpose of this study was to determine the importance of the classical pathway in coronavirus pathogenesis by comparing C1qa KO mice and wild-type mice. Methods: We generated a C1qa KO mouse using CRISPR/Cas9 technology and compared the susceptibility to MHV A59 infection between C1qa KO and wild-type mice. Histopathological and immunohistochemical changes, viral loads, and chemokine expressions in both mice were measured. Results: MHV A59-infected C1qa KO mice showed severe histopathological changes, such as hepatocellular necrosis and interstitial pneumonia, compared to MHV A59-infected wild-type mice. Virus copy numbers in the olfactory bulb, liver, and lungs of C1qa KO mice were significantly higher than those of wild-type mice. The increase in viral copy numbers in C1qa KO mice was consistent with the histopathologic changes in organs. These results indicate that C1qa deficiency enhances susceptibility to MHV A59 systemic infection in mice. In addition, this enhanced susceptibility effect is associated with dramatic elevations in spleen IFN-γ, MIP-1 α, and MCP-1 in C1qa KO mice. Conclusions: These data suggest that C1qa deficiency enhances susceptibility to MHV A59 systemic infection, and activation of the classical complement pathway may be important for protecting the host against MHV A59 infection.

Characteristics of Natural Habitats to Allium monanthum in South Korea (한국 달래의 자생 특성)

  • Kim, Kyung-Min;Park, Soon-Ki;Kim, Chang-Kil;Oh, Jung-Youl
    • Korean Journal of Breeding Science
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    • v.42 no.4
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    • pp.381-389
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    • 2010
  • This study was carried out to develop the breeding and/or cultivation materials by investigating characteristics of natural habitats of Allium monanthum in South Korea. Natural habitats of sunny, half-shady, and shady conditions were 13 (10.7%), 66 (54.6%), and 42 (34.7%), respectively. Natural habitats were located around upland (45.4%), around Buddhist temple area (28.1%), on mountain area (18.2%), along roadside (2.5%), and along riverside (5.8%), respectively. Natural habitats ranged widely in all areas of Korea by $33^{\circ}N{\sim}38^{\circ}N$ and $126^{\circ}E{\sim}129^{\circ}E$. In Chungbuk and Gyeongbuk natural habitats were more than in Jeonbuk and Jeonnam. Distribute pattern were formed densely. Sprout stage was from September till March of next year. Grew from March to April, and there was no plant formed flower stalk in natural habitats.