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RISS 인기검색어
- 검색키워드
- 저자 : 柳基漢 (검색결과 42 건)
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류기,이건형 한국공업화학회 2020 한국공업화학회 연구논문 초록집 Vol.2020 No.-
Amino-terminal copper and nickel(ATCUN) binding motif(NH<sub>2</sub>-XXH) have been used as an ensemble system with Cu(II) (probe-Cu<sup>2+</sup>) because the binding motif had a potent binding affinity for Cu(II) and Cu(II) fully quenched fluorophore of ATCUN binding motif. We synthesized fluorescent labeled peptides corresponding to ATCUN binding motif using NBD and sNBD fluorophores. The ensemble system with Cu(II) detected important biothiols including H<sub>2</sub>S. The addition of H2S promptly took Cu<sup>2+</sup> from the ensemble in pure buffered aqueous solutions, causing a “turn-on” fluorescent response. The ensemble sensitively detected the low concentration of H<sub>2</sub>S. In this feature article, we will discuss probes using ensemble system with Cu(II) in a buffered aqueous system and the selectivity of biothiols.
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柳基漢 忠州大學校 1987 한국교통대학교 논문집 Vol.21 No.-
The majority of modem are performed by general purpose microprocessor Intel, 8086. Multiplications are performed by simple, low cost multiplier consisting of a few TTL chips A particular attention is paid to signal processing algorithms, which when Properly selected, can singnificantly speed-up signal processing with no influence on accuracy Few possibilities in H/w and S/w design for different signal processing riquirements are briefly discussed. Computer simulation resultes, describing performances of algorithms, are presented as well
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류기한 忠州大學校 2008 한국교통대학교 논문집 Vol.43 No.-
In this paper, we propose a scheduling method which can guarantee the different QoS (Quality of Service) for each traffic flow in network. It is referred to as Queue Length Control Scheduling (QLCS). In the QLCS, control parameters such as mean and standard deviation of queue length which are based on the target delay of each queue, are previously obtained by M/G/1 model on-line. And then the parameters are exploited to scheduling. We find that the QLCS outperforms other schemes from simulation. The QLCS can achieve the target delay for each traffic flow in wider range than other schemes. We also find that the QLCS can achieve moderate performance even though it is used the different assumption from real packet length distribution or packet arrival distribution in process of obtaining the control parameters.
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柳基漢,崔英奎 忠州大學校 1998 한국교통대학교 논문집 Vol.33 No.2
Strength evaluation for the wire is very important to avoid crack generation at the selection of materials and the structural design of semiconductor packages. This paper describes the strength evaluation for a wire with the copper-cored semiconductor package. A simplified FEM(Finite Element Method) model targeting issues at the package structural design was developed and its validity was checked against a more elaborated FEM model. From the FEM analysis of thermal stress induced by the difference of thermal expansion coefficients of the composite materials and the detection of crack generation during the thermal cyclic test, it has been proved that the point location where the maximum thermal stress appears coincides with the one where the crack occurs. Through a series of FEM analysis, it has been proved that the cause of a crack is strongly related to the gap between the lid and the copper core and the suitable length of the gap to prevent crack has been obtained. A new semiconductor package based on the proposed strength evaluation method is working well without cracking. Thus, the capability and validity of the proposed evaluation method has been proved.
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류기한 忠州大學校 2005 한국교통대학교 논문집 Vol.40 No.2
NC-PRMA(Non-Collision Packet Reservation Multiple Access) is well known that it outperforms PRMA(Packet Reservation Multiple Access) in throughput since NC-PRMA has no collision of packets and employ reservation of the slot. However, NC-PRMA is only considered to voice traffic up to now. So, in this paper we consider the characteristics of NC-PRMA operating in both voice and data traffic. we apply throughput analysis scheme in equilibrium state used in PRMA to NC-PRMA. we examine the throughput and the voice packet dropping probability throughput analysis and simulation. The result show that NC-PRMA operating in both voice and data traffic outperforms PRMA in throughput and voice packet dropping probability
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실시간 시스팀 설계를 위한 큐잉모텔 적용 분석에 관한 연구
柳基漢,崔英奎,元忠常 忠州大學校 1993 한국교통대학교 논문집 Vol.28 No.-
This paper presents the analysis of queueing model to be applied to the development of real-time system on the base of the computer To analyze the perfarmance of queue, we selected the queueing model, M/M/1 (N) which is employed in general and got the analysis result through simulation. This result becomes the important element when developing a real-time system with message queues.
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류기한 忠州大學校 2007 한국교통대학교 논문집 Vol.42 No.-
In this paper, we develop a regional information network system that pre-registered users in home or small business can communicate with each other over the personal computers. In other words, it is a group communication system using MAC address and general-purpose system that can be applied to access system such as STM shared method and cable modem. The operation of the regional information network system is given as follows: the ethernet packets received from user terminals are encapsulated in IP packet by edge device. And after the encapsulated packets are filtered by center node device. The filtering operation is based on the MAC address of user terminals.
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류기한 忠州大學校 2004 한국교통대학교 논문집 Vol.39 No.1
We present a new protocol, Host Mobility Support Protocol (HMSP) to aid host to move on the Internet. First, HMSP is easy to be introduced since it minimizes the variation of the existing network. Second, HMSP is operated among broadly dispersed multiple domains as well. Since we emploied the virtual subnet freely established in each domain, Mobility host existed in the virtual subnet in HMSP.
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柳基漢,崔英奎 忠州大學校 1994 한국교통대학교 논문집 Vol.29 No.2
This paper presents the implemented communication control system using a processor(8032) to automatize a magnetizing process in manual. As using the implemented system, we were able to get the high quality and productiviy in the process of magnetizing. And this system was implemented to be able to provide the functions of statistics and analysis with the saved data in a database that was generated in magnetizing.
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