• Title/Summary/Keyword: Suzuki

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Wideband Channel Simulation Algorithm for the Suzuki Fading Channel (Suzuki 페이딩 채널에 대한 광대역 채널 시뮬레이션 알고리즘)

  • 박태준;박상수;김형명
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.19 no.8
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    • pp.1493-1502
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    • 1994
  • In this paper we propose a new wideband channel simulation algorithm which exactly simulates the Suzuki fading channel, a mixture of short term and long term fading. Proposed algorithm generates the incoming reflected waves as Suzuki distributed random signals and is possible to arbitrarily adjust the correlations among long term fading components of the incoming waves by using the Gaussian-to-lognormal transformation. Proposed algorithm can be applied to the simulation of the system performance.

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SOME FIXED POINT RESULTS FOR TAC-SUZUKI CONTRACTIVE MAPPINGS

  • Mebawondu, Akindele A.;Mewomo, Oluwatosin T.
    • Communications of the Korean Mathematical Society
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    • v.34 no.4
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    • pp.1201-1222
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    • 2019
  • In this paper, we introduce the notion of modified TAC-Suzuki-Berinde type F-contraction and modified TAC-(${\psi}$, ${\phi}$)-Suzuki type rational mappings in the frame work of complete metric spaces, we also establish some fixed point results regarding this class of mappings and we present some examples to support our main results. The results obtained in this work extend and generalize the results of Dutta et al. [9], Rhoades [18], Doric, [8], Khan et al. [13], Wardowski [25], Piri et al. [17], Sing et al. [23] and many more results in this direction.

Suzuki Methods for the Beginners, Applying Gordon's Music Learning Theory (Edwin E. Gordon의 음악학습 이론을 적용한 스즈키 지도법)

  • Lee, Ka-won
    • The Journal of the Korea Contents Association
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    • v.18 no.12
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    • pp.372-382
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    • 2018
  • Understanding is the foundation of music appreciation, the ultimate goal of music learning. The purpose of this research was to create a model for the integration and implementation of Gordon's music learning theory principles into Suzuki violin instruction. This research shows how audiation can be taught within the framework of the Suzuki philosophy and curriculum. It is expected that Gordon's music learning theory can provide Suzuki teachers with unique capabilities for teaching musical understanding, specifically through the development of audiation. Through an audiation-based approach to Suzuki instruction, thus, young violinists will be able to learn to comprehend the tonal and rhythmic aspects of the music they perform. Future researchers may wish to assemble a more complete guide to the tonal and rhythm patterns used in the Suzuki repertoire. Furthermore, additional lesson plans and activities can and should be developed that represent the application of music learning theory to Suzuki violin instruction.

Synthesis of Palladium Nanoparticles Encapsulated in Phosphine Ligand-Grafted Mesoporous Silicas and Their Application to Suzuki Cross-Coupling Reaction (팔라듐 나노입자가 담지된 메조포러스 실리카의 제조와 이를 이용한 Suzuki Cross-Coupling 반응의 적용연구)

  • Kim, Sang-Wook;Joo, Jin
    • Clean Technology
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    • v.17 no.1
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    • pp.13-18
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    • 2011
  • Phosphine ligand-grafted mesoporous silica materials with large pores were prepared for the ligand-modified heterogeneous Pd nanocatalysts. New heterogeneous catalytic system was developed using palladium nanoparticles encapsulated in phosphine ligand-grafted mesoporous silica. The catalyst showed good catalytic activities for Suzuki cross-coupling using bromobenzene derivatives due to excellent phosphine ligand effects. Catalytic results showed nanoparticie catalysts can be recycled twice with decreased yields.

Tris(2-methoxyphenyl)phosphine as a Highly Active Ligand for the Synthesis of Biaryls by Suzuki Coupling Reaction

  • Kang, Pill-Seong;Ko, Sung-Bo;Ko, Jang-Myoun;Park, Jeong-Ho
    • Bulletin of the Korean Chemical Society
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    • v.30 no.11
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    • pp.2697-2700
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    • 2009
  • A $Pd(OAc)_2/(o-MeOPh)_3P$ system has been developed for the catalytic Suzuki coupling of aryl bromides with arylboronic acids. Our catalyst system covers a broad spectrum of commonly available arylboronic acids and aryl bromides to provide biaryls in very good yields. The catalyst system works very well in the synthesis of sterically hindered biaryls.

Heterogeneous Suzuki Cross-Coupling Reaction Catalyzed by Magnetically Recyclable Nanocatalyst

  • Choi, Kwang-Hyun;Shokouhimehr, Mohammadreza;Sung, Yung-Eun
    • Bulletin of the Korean Chemical Society
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    • v.34 no.5
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    • pp.1477-1480
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    • 2013
  • The Suzuki cross-coupling reactions proceeded in excellent yields when it was catalyzed by magnetically recyclable nanocatalyst. This nanocatalyst provided very high catalytic activity with low loading level (1 mol %), because the palladium nanoparticles were so small in size (~2 nm) and located on the surface of the nanocomposite. It was also easily recovered from the reaction mixture using a magnet and reused for six consecutive cycles.

Bit Error Probability Analysis for MPSK Modulation in the Suzuki Fading Channel (Suzuki 페이딩 채널에서 MPSK 변조 방식의 비트 오류 확률 분석)

  • 박태준;하구용
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.19 no.6
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    • pp.1075-1084
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    • 1994
  • In this paper we derive a closed-form approximate expression for the bit error probability of the MPSK modulation with diversity reception in the Suzuki fading channel which is a mixture of short term and long term fading. We showed that the proposed approximate expression was capable of efficient computation compared to the existing integral-form expression, and gives an quantitative insight how much the channel parameters degrade the system performance. Further more it is shown that an appropriate transmission power control is beneficial to the system through consideration of the approximate expression.

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