• Title/Summary/Keyword: Agents

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Effects of Complex Agents and pH on the Deposition Behavior of Electroless Ni-Co-P Film (착화제와 pH가 무전해 Ni-Co-P 도금 피막의 석출거동에 미치는 영향)

  • Choi, Byuck-Keun;Yang, Seung-Gi;Shin, Ji-Wung;Hwang, Woon-Suk
    • Corrosion Science and Technology
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    • v.13 no.3
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    • pp.107-111
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    • 2014
  • Electroless plated Ni-Co-P films have been used to suppress the electromagnetic waves from magnetic recording media, and the suppression is known to be achieved with films made with optimized plating composition and plating condition. Effects of complexing agents on the deposition rate and bath stability of Ni-Co-P film were studied using sodium citrate, sodium tartrate and multi-complex agents containing both of them. Deposition of electroless Ni-Co-P platings was dependent upon the complexing agents. Deposition rate was twice when using sodium tartrate compared to that using sodium citrate. And it was slightly slower with multi-complex agents than with sodium tartrate, bath stability being declined in the former. Deposition rate increased with increasing pH until pH 11. Excellent bath stability and good deposition rate were obtained using multi-complex agent as sodium citrate 0.10 mol/L and sodium tartrate 0.15 mol/L in the electroless Ni-Co-P plating films.

Multi Emotional Agent based Story Generation (다중 감정 에이전트를 이용한 자동 이야기 생성 시스템의 설계)

  • Kim, Won-Il;Kim, Dong-Hyun;Hong, You-Sik;Kim, Sung-Sik;Lee, Chang-Min
    • Journal of the Institute of Electronics Engineers of Korea CI
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    • v.45 no.5
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    • pp.134-139
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    • 2008
  • In this paper, we propose a story generation system using multi emotional agents. The proposed multi emotional agents are equipped with multiple emotional model so that it can be used as individually personalized agents that can generates unique storylines. Basically these kinds of multi emotional agents are easily employed as Avatar or NPC in computer games. In the proposed system, emotional agents are used as actor or actress whose characters and preferences are different each other. The storylines generated using the proposed system are realistic since the characters are emotional as humans.

A Super-Peer Coordination Scheme for Decentralized Peer-to-Peer Networking Using Mobile Agents

  • Chung, Won-Ho;Kang, Namhi
    • International journal of advanced smart convergence
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    • v.4 no.2
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    • pp.38-45
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    • 2015
  • Peer-to-Peer(P2P) systems are generally classified into two categories; hybrid and pure P2P. Hybrid systems have a single central index server keeping the details of shared information, so that undesirable effects such as heavy load on that server and lack of fault-tolerance can be caused. Pure P2P causes the other problems such as message flooding and scalability although it shows high degree of fault-tolerance. Recently, mobile agent-based distributed computing has been receiving wide attention for its potential to support disconnected operations, high asynchrony, and thus saving network bandwidth. In this paper, a new scheme of peer coordination is proposed for a decentralized P2P network with self-organizing structure. We deployed mobile agents for incorporating the advantages of usage of mobile agents into our P2P network. Proposed P2P network has both advantages of hybrid and pure P2P. The problems of heavy load on the server and lack of fault-tolerance are improved by using multiple special peers called super-peers. And the problems of pure P2P can be reduced by using mobile agents.

Effects of Co-agent Type and Content on Curing Characteristics and Mechanical Properties of HNBR Composite

  • Lee, Young Seok;Ha, KiRyong
    • Elastomers and Composites
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    • v.55 no.2
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    • pp.95-102
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    • 2020
  • Currently, peroxide cure is a widely used cure system for rubber materials. To improve its effectivity, co-agents are used to enhance the peroxide efficiency and mechanical properties of rubber materials. Co-agents are multifunctional organic compounds that are highly reactive towards free radicals. These co-agents provide higher cross-link densities for a given peroxide concentration and improve the mechanical properties of peroxide-cured rubber composites. In this study, trimethylolpropane trimethacrylate (TMPTMA) and high vinyl 1,2-polybutadiene (HVPBD) were used as co-agents. In order to obtain a concentration that achieves a favorable balance between mechanical properties and co-agent concentration, this research investigated the effects of co-agent content on the curing characteristics, chemical structures, and mechanical properties of HNBR composites. Additionally, the heat aging properties and compression sets of HNBR composites were investigated. Based on the results, we found that the HNBR composites with TMPTMA co-agents exhibited higher Shore A hardness and 10% modulus and better heat aging resistance and compression set than that of the HVPBD co-agent. The heat aging resistance and compression set deteriorated with increasing HVPBD content.

College Students' Decision-Making Styles : An Analysis from the Perspective of Consumer Socialization (소비자사회화 관점에서 본 대학생소비자의 의사결점 스타일)

  • Kim Young-Seen;Park Ji-Young
    • Journal of Families and Better Life
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    • v.23 no.3 s.75
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    • pp.77-91
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    • 2005
  • This study conceptualized the factors affecting college students' consumer decision-making styles from the perspective of consumer socialization. A number of antecedent variables identified by preceding studies (age, gender, place where one grew up, job experience, main reason for working, amount of allowance, family income, socio-economic status) and socialization agents such as family, peers, mass media were included in the analysis. This study extends previous studies by examining a theoretical link between the antecedent variables and socialization agents. Three hundred and forty one undergraduate students in Daejeon were participated in this study. Stepwise multiple regression md path analysis were conducted. The results of this study are as follows: 1. Six consumer decision-making styles were identified. 2. The influence of the socialization agents, especially mass media and several antecedent variables, especially gender and main reason for working, played important roles in consumer decision-making styles. 3. Several antecedent variables, especially gender and family income, were related only with the influence of socialization agents. 4. Six path-analysis models that illustrate the relationships among the antecedent variables, the socialization agents and consumer decision-making styles were proposed.

An Efficient Location Tracking Method for Mobile Agent Communication (이동 에이전트 통신을 위한 효율적인 위치 추적 방법)

  • Song, Sang-Hoon
    • The KIPS Transactions:PartA
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    • v.11A no.5
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    • pp.347-354
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    • 2004
  • The provision of location tracking for mobile agents is designed to deliver a message to a moving object in a network. Most tracking methods exploit relay stations that hold location information to forward messages to a target mobile agent. In this paper, we propose an efficient location tracking method for mobile agents using the domain-based proxy as a relay station. Mobile agents can reduce the length of their migration paths by visiting hosts in the same domain first, rather than selecting hosts randomly. The proposed method exploits the domain-based moving patterns of mobile agents and minimizes registration and message delivery costs. Since the long proxy chain can contribute to the high message delivery cost, we also propose a compressing method to reduce the message delivery cost.

Design and Implementation of an Efficient Migration Policy for Mobile Agents (이동 에이전트를 위한 효율적인 이주 정책 설계 및 구현)

  • Jeon, Byeong-Guk;Choe, Yeong-Geun
    • The Transactions of the Korea Information Processing Society
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    • v.6 no.7
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    • pp.1770-1776
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    • 1999
  • Mobile agent technology has received great attention in the last years as a new paradigm for distributed processing systems. Mobile agents are autonomous objects that can migrate from node to node of a computer network. But, due to hosts or communication nodes failures, mobile agents may be blocked or crashes even if there are other nodes available that could continue processing. To cope with above, this paper proposes an efficient policy by introducing the path reordering and backward recovery to ensure the migration of mobile agents. The proposed migration policy will be provided the migration reliability of mobile agents as autonomously as possible, and it is implemented in the MOS, a mobile object system model developed by the Java language.

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JXTA based P2P Framework using Mobile Agents (모바일 에이전트를 이용한 JXTA 기반의 P2P 프레임워크)

  • Min, Su-Hong;Cho, Dong-Sub
    • Proceedings of the KIEE Conference
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    • 2003.11c
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    • pp.384-387
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    • 2003
  • In this paper, we have designed the integrated wire and wireless P2P framework using mobile agents to share efficiently resources as media file. Most of the P2P applications are used on the wire network. We propose the integrated wire and wireless P2P framework. Proposed P2P platform is based on JXTA of Sun Microsystems. But JXTA is pure peer-to-peer network model, so it sends message other peers as broadcast style to request resources. In this way, there are some problems as massage overload, bandwidth loss, etc. In order to solve this problem, we propose a hybrid peer-to-peer network model using mobile agent. Proposed scheme also solve existing hybrid pEp model's flaws which have the delay and low rate due to concentrated server. In proposed scheme, mobile agents that have autonomy and mobility are used to search the location of resources. Besides, mobile agents could solve the loss problem of the search result. To improve P2P QoS(Quality of Service), we could monitor peer's state information using PIP(Peer Information Protocol) of JXTA.

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Study on mobile agents for the intrusion detection in pervasive computing environment (퍼베이시브 컴퓨팅 환경에서의 침입탐지용 모바일 에이전트에 대한 연구)

  • Oh, Byung-Jin;Um, Nam-Kyoung;Mun, Hyung-Jin;Lee, Sang-Ho
    • Journal of the Korea Society of Computer and Information
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    • v.11 no.3
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    • pp.231-237
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    • 2006
  • Pervasive computing environment is similar to the meaning of ubiquitous computing, however it is a kind of the commercial product, which is made from the collaboration between NIST and IBM. On the basis of this environment, the research of mobile agents for intrusion detection is going on in progress. In this paper, we study the research about mobile agents for the intrusion detection and then suggest scenarios using moving mobile agents based on the multiple mobile agents in the intrusion detection. Subsequently, we could figure out the problems which occurred through progress of integrity movement as a matter of the intrusion detection.

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Behaviors of Desorption Agents During Removal of Cs From Clay Minerals and Actual Soil

  • Park, Chan Woo;Kim, Ilgook;Yoon, In-Ho;Yang, Hee-Man;Seo, Bum-Kyung
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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    • v.19 no.1
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    • pp.39-49
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    • 2021
  • The behaviors of various desorption agents were investigated during the desorption of cesium (Cs) from samples of clay minerals and actual soil. Results showed that polymeric cation exchange agents (polyethyleneimine (PEI)) efficiently desorbed Cs from expandable montmorillonite, whereas acidic desorption solutions containing HCl or PEI removed considerable Cs from hydrobiotite. However, most desorption agents could desorb only 54% of Cs from illite because of Cs's specific adsorption to selective adsorption sites. Cs desorption from an actual soil sample containing Cs-selective clay mineral illite (< 200 ㎛) and extracted from near South Korea's Kori Nuclear Power Plant was also investigated. Considerable adsorbed 137Cs was expected to be located at Cs-selective sites when the 137Cs loading was much lower than the sample's cation exchange capacity. At this low 137Cs loading, the total Cs amount desorbed by repeated washing varied by desorption agent in the order HCl > PEI > NH4+, and the highest Cs desorption amount achieved using HCl was 83%. Unlike other desorption agents with only cation exchange capabilities, HCl can attack minerals and induce dissolution of metallic elements. HCl's ability to both alter minerals and induce H+/Cs+ ion exchange is expected to promote Cs desorption from actual soil samples.