• Title/Summary/Keyword: MCM-C

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Optical Communications Convergence SOP Technology (광통신 융합 SOP 기술)

  • Lim, K.S.;Lee, J.J.;Lee, S.H.;Kang, H.S.
    • Electronics and Telecommunications Trends
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    • v.24 no.1
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    • pp.1-11
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    • 2009
  • 광통신 융합 SOP 기술은 현존하는 다양한 통신망의 부품 및 시스템 개발에 적용 가능하고, 다양한 시스템에 호환되도록 표준화된 플러거블(pluggable) 형태로 구현이 가능하며 전기적 수동 능동 소자는 물론 광 수동 능동 소자 및 센서 소자들의 통합 패키징이 가능한 패키징 기술로 광 통신 분야를 비롯한 다양한 분야에 적용 가능한 융합된 기반을 제공하는 기술이다. 본 고에서는 SoC, SiP, MCM의 단점 및 한계를 대체할 차세대 시스템 집적기술로서의 SOP의 기술적 배경과 광통신 융합 SOP 기술 소개, 그리고 국내외 기술 개발 동향을 살펴보고자 한다.

Research on the Performance Test of System in Package Chips for the Digital Broadcasting Receiver (디지털 방송 수신용 System in Package 칩의 성능 검사에 관한 연구)

  • Kim, Jee-Gyun;Lee, Heon-Yong
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.57 no.12
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    • pp.2228-2233
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    • 2008
  • This research paper aims to establish a test process of the AFE SiP chip. It measured the sensitivity, current consumption and power consumption both on the evaluation socket board and Catalyst load board. As a result, the sensitivity became deteriorated with an average of 0.2[dBm] at the channel 62 only, the current consumption increased to an average of 0.57[mA] and the power consumption increased to an average of 1.76[mW], But all characteristics incomes the tolerance of the measurement, it also keeps almost the same level. Therefore this design of the test process improved a valid design.

Study on the extraction of characteristics of LTCC RF components (LTCC RF 소자 특성 추출에 관한 인구)

  • 유찬세;이우성;강남기;박종철
    • Proceedings of the International Microelectronics And Packaging Society Conference
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    • 2002.05a
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    • pp.214-218
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    • 2002
  • So far, many kinds of researches on the ceramic chip components and MCM-C RF module especially on the 3-dimensional ceramic module using embedded passives have been performed. LTCC system has many kinds of advantages, like low lass, low cost of process, stability of process etc.. But it's so hard to adjust the characteristics of passives in ceramic module after fabrication. So the exact prediction of behavior of components in high frequency region upper than 2 GHz must be made. In this procedure, the exact measurement is need. In this study, many kinds of measurement Jigs are compared and optimized, and measurement methods of each parameter are designed.

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The Culture Conditions for the Mycelial Growth of Phellinus spp.

  • Jo, Woo-Sik;Rew, Young-Hyun;Choi, Sung-Guk;Seo, Geon-Sik;Sung, Jae-Mo;Uhm, Jae-Youl
    • Mycobiology
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    • v.34 no.4
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    • pp.200-205
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    • 2006
  • Phellinus genus belonged to Hymenochaetaceae of Basidiomycetes and has been well known as one of the most popular medicinal mushrooms due to high antitumor activity. This study was carried out to obtain the basic information for mycelial culture conditions of Phellinus linteus, P. baumii, and P. gilvus. According to colony diameter and mycelial density, the media for suitable mycelial growth of them were shown in MEA, glucose peptone, and MCM. The optimum temperature for mycelial growth was $30^{\circ}C$. Carbon and nitrogen sources were man nose and malt extract, respectively. The optimum C/N ratio was 10:1 to 5:1 with 2% glucose concentration, vitamin was thiamine-HCl, organic acid was succinic acid, and mineral salt was $MgSO_{4}{\cdot}7H_{2}O$.

Characterization of a new variety Auricularia polytricha (Mont.) Sacc.'Geoni' (털목이 신품종 '건이')

  • Kim, Kil-Ja;Lee, Sook-Jae;Kim, Myeong-Seok;An, Ho-Sub;Kim, Dong-Gwan;Kwon, Oh-Do;Park, Heung-Gyu
    • Journal of Mushroom
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    • v.14 no.4
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    • pp.211-214
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    • 2016
  • Geoni, a new variety of Auricularia polytricha, was bred in JARES(Jeollanamdo Agricultural Research and Extension Services) in 2012. Geoni was selected through the monospore hybridization with JNM21008 and JNM21014 in 2010. Based on a performance test conducted from 2011 to 2012, the Geoni was selected from a line showing an excellent light brown pileus and strong pest resistance. Geoni has a favorable chewiness, light brown and smooth pileus. In addition, Geoni was rich in dietary fiber. MCM(mushroom complete medium), Malt and PDA(Potato Dextrose Agar) mediums were suitable for cultivating the Geoni. The number of effective stipes was 39 ea/0.9 kg and minor axis and major axis of pileus were 6.9 cm and 8.7 cm respectively. The yield of Geoni was 291 g/0.9 kg in plastic bag. Geoni was required 40~54 days for culture at $20^{\circ}C$ and 24days for the primordia and growth period, which is longer than that of the control(Pung-un). Somatic incompatibility was formed between parental strains and Geoni. Analysis of the genetic diversity of the new variety "Geoni"revealed a different profile from the parental strains when RAPD(random Amplified Polymorphic DNA) primers were used.

Favorable Condition of Culture and Sclerotial Formation by Inonotus obliquus (차가버섯(Inonotus obliquus)의 배양조건과 균핵 형성)

  • Lee, Won-Ho;Park, Young-Jin;Kim, Ho-Kyung;Cha, Joo-Young;Kim, Tae-Woong;Sung, Jae-Mo
    • The Korean Journal of Mycology
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    • v.33 no.2
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    • pp.59-63
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    • 2005
  • Altogether twenty isolates were collected from Wakayama, Japan. The optimum mycelial growth of I. obliquus was observed in BMYA and MCM. The optimum temperature and pH for the mycelial growth were $25^{\circ}C\;and\;6.0{\sim}7.0$, respectively. The optimum carbon and nitrogen sources were dextrose and yeast extract, respectively. Similarly, the optimum mineral salt was $K_{2}HPO_{4}$. The optimum number of mycelial discs for the mycelial growth was $6{\sim}7$ per 100 ml. Similarly, the optimum culture period was $21{\sim}22$ days in liquid broth. The optimum brown rice : water ratio was 1 : 1. No difference in mycelial growth was observed in all the four types of tree stumps used.

Involvement of Macrophages in Proliferation of Prostate Cancer Cells Infected with Trichomonas vaginalis

  • Kim, Kyu-Shik;Moon, Hong-Sang;Kim, Sang-Su;Ryu, Jae-Sook
    • Parasites, Hosts and Diseases
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    • v.59 no.6
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    • pp.557-564
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    • 2021
  • Macrophages play a key role in chronic inflammation, and are the most abundant immune cells in the tumor microenvironment. We investigated whether an interaction between inflamed prostate cancer cells stimulated with Trichomonas vaginalis and macrophages stimulates the proliferation of the cancer cells. Conditioned medium was prepared from T. vaginalis-infected (TCM) and uninfected (CM) mouse prostate cancer (PCa) cell line (TRAMP-C2 cells). Thereafter conditioned medium was prepared from macrophages (J774A.1 cell line) after incubation with CM (MCM) or TCM (MTCM). When TRAMP-C2 cells were stimulated with T. vaginalis, protein and mRNA levels of CXCL1 and CCL2 increased, and migration of macrophages toward TCM was more extensive than towards CM. Macrophages stimulated with TCM produced higher levels of CCL2, IL-6, TNF-α, their mRNAs than macrophages stimulated with CM. MTCM stimulated the proliferation and invasiveness of TRAMP-C2 cells as well as the expression of cytokine receptors (CCR2, GP130, CXCR2). Importantly, blocking of each cytokine receptors with anti-cytokine receptor antibody significantly reduced the proliferation and invasiveness of TRAMP-C2 cells. We conclude that inflammatory mediators released by TRAMP-C2 cells in response to infection by T. vaginalis stimulate the migration and activation of macrophages and the activated macrophages stimulate the proliferation and invasiveness of the TRAMP-C2 cells via cytokine-cytokine receptor binding. Our results therefore suggested that macrophages contribute to the exacerbation of PCa due to inflammation of prostate cancer cells reacted with T. vaginalis.

Optimization of Mycelial Growth of Entomogenous fungi of the Genus Cordyceps (동충하초속균의 균사생장최적화)

  • Hong, In-Pyo;Nam, Sung-Hee;Jung, I-Yeon;Sung, Gyoo-Byung;Nam, Hack-Woo;Kang, Seok-Woo;Hur, Hyeon;Lee, Min-Woong;Guo, Shun-Xing
    • Journal of Mushroom
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    • v.2 no.3
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    • pp.149-156
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    • 2004
  • This study was carried out to obtain basic data on physiological characteristics for an artificial cultivation of fruiting body of Cordyceps. Specimens such as Cordyceps longissima, C. militaris and C. pruinosa were collected at Mt. Halla of Cheju island in July, 2003. Among four different culture media which have been used for culture of mushrooms, MCM medium was selected for the favorable culture medium of the Cordyceps tested. The initial pH of solid medium for mycelial growth of Cordyceps was good in the range of pH 5.0~7.0 lower than 8.0. The mycelial growth of C. longissima was most favorable on culture media supplemented with glucose, one of monosaccharides. In C. militaris, nine carbon sources were favorable to the mycelial growth as compared with control among 11 carbon sources. Six nitrogen sources were favorable to the mycelial growth of C. longissima as compared with control among 9 carbon sources; namely, the mycelial growth of C. longissima was most favorable on culture media contained potassium nitrate, and followed in order by ammonium citrate and sodium nitrate in 4 weeks incubation.

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Investigation on Cultural Characteristics of Mycelial Growth by Cordyceps scarabaeicola (풍뎅이동충하초(Cordyceps scarabaeicola)의 균사 생장 조건 규명)

  • Lee, Jae-Keun;Choi, Young-Sang;Sung, Jae-Mo
    • The Korean Journal of Mycology
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    • v.28 no.2
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    • pp.81-87
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    • 2000
  • The optimal synthetic medium, temperature and pH range for the mycelial growth of Cordyceps scarabaeicola were PDA, $25^{\circ}C$, and pH $8.0{\sim}8.5$, respectively. The effects of carbon sources, nitrogen sources and mineral salts on mycelial growth were superior to lactose, ammonium phosphate and $CaCl_2$, respectively. Liquid spawn culture was selected out BM(brown sugar 3%, soybean flour 0.3%, potassium phosphate 0.05%, magnesium sulfate 0.05%) medium.

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Study on the characteristics of stripline resonator in the variation of metal content and grain size (도체 페이스트의 메탈 함량 및 입자 크기에 따른 스트립라인 레조네이터 특성 연구)

  • 유찬세;조현민;이우성;강남기;박종철
    • Proceedings of the International Microelectronics And Packaging Society Conference
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    • 2002.11a
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    • pp.159-163
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    • 2002
  • So far, many kinds of researches on the chip components and MCM-C RF module especially on the 3-dimensional ceramic module using embedded passives have been performed. LTCC system has many kinds of advantages, like low loss, low cost of process, stability of process etc..The electrical behaviors of components are affected by that of the material systems including dielectrics and conductors. In this study, many kinds of conductor pastes in the variation with metal content and grain size are fabricated and their effect on the characteristics of stripline resonator are examined upto 6 ㎓.

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