• Proceedings of the Korean Information Science Society Conference
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• 2007.10d
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• pp.201-204
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• 2007

최근 네트워크가 발달함에 따라 게임 산업에도 많은 변화가 나타났다. 네트워크 게임이 다수 개발되었고, 그들의 인기가 놀아짐에 따라 게임 트래픽이 네트워크 및 인터넷에 미치는 영향은 높아지게 되었다. 우리는 네트워크와 인터넷 환경을 개선하기 위해, 대표적인 peer-to-peer 기반의 게임인 스타크래프트의 트래픽으로부터 패킷 전송 매커니즘을 분석하고 이를 개선하기 위한 새로운 패킷 전송 구조를 제안한다. 새로운 패킷 전송 구조에서는 동일한 서브넷에 있는 호스트들을 하나의 그룹으로 묶고, 그룹을 대표하는 하나의 호스트를 선하여 해당 호스트만 인터넷을 통해 패킷을 송수신하게 된다. 따라서 인터넷을 통한 패킷 전송량을 대폭 감소시킬 수 있게 된다. 결론적으로 인터넷의 품질을 향상시키고, 개인 사용자에게 향상된 게임 환경을 제공한다.

• Journal of Families and Better Life
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• v.22 no.4
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• pp.115-126
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• 2004

The purpose of this study was to examine the relationships among parents' marital conflict perceived by school-aged children, children's aggression, and peer harassment six hundred thirty seven 5th and 6th graders (306 girls and 331 boys) participated in this study. Each participant completed a children's perception of parental conflict scale, a children's aggression scale, and a peer harassment scale. Major findings of this study are as follows: 1) In terms of physical harassment, boys were bullied and victimized more than girls. 2) Children's aggression was positively related to the physical and relational peer harassment. Parents' marital conflict was positively related to children's aggression. There was a statistically significant relationship between parents marital conflict and physical and relational peer harassment. 3) Parents' marital conflict and children's aggression influenced physical and relational harassment for both boys and girls.

• Toxicological Research
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• v.20 no.1
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• pp.1-11
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• 2004

Evaluation of toxicological pathology is to some extend subjective judgments by pathologist and the accuracy of pathologist's works is based on the individual training and experiences. It has been required to establish a peer review system for toxicologic pathology and these review system has been employed by various practice of toxicological pathology. It would be pointed out that the possible causes of drifts in pathology are due to 1) lack of knowledge or experience of individual pathologists, 2) poorly maintained consistence of grading among animals in study, 3) different interpretation of findings between pathologists, or 4) pathology data processing. Example cases of diagnostic errors and current practice of peer review including tissue selection criteria, documentation and problem resolution for short-term and carcinogenicity studies were introduced. For sound regulatory system and high integrity of practice in toxicological pathology, current approaches of peer review system were reviewed.

• Proceedings of the KAIS Fall Conference
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• 2011.05a
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• pp.45-48
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• 2011

본 논문에서는 RFID 보다 뛰어난 보안 서비스를 제공하는 NFC의 세 가지 운영모드인 Reader/Writer 모드, Card Emulation 모드, Peer-to-Peer 모드를 살펴보고, NFC 보안 기술인 NFC-SEC에서 제공하는 Key Agreement, Key Confirmation, SSE, SCH를 분석한다. 접속 과정의 경량화를 위해서 마스터 키를 갱신하여 유지하는 프로토콜을 제안하고, 제안 프로토콜을 분석 및 평가한다.

• Korean Journal of Child Studies
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• v.21 no.4
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• pp.143-158
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• 2000

This study examined whether children's peer representations are associated with peer acceptance and whether attributions and goals are related to representations about behavioral responses in ambiguous provocation and conflict situations. The subjects were 119 5th-grade children responded to 4 hypothetical situations. Results indicated that children's positive representations about peer conduct in ambiguous provocations were related to their higher level of peer acceptance, and positive representations about a friend in conflict situations were associated with their perceived positive qualities of friendship. Children's positive attribution and relational goal orientation were associated with relational behavioral responses. Gender differences were found for some goals and behavioral responses, with girls displaying a more relational goal and behavioral response orientation than boys.

• Proceedings of the Korea Information Processing Society Conference
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• 2002.11a
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• pp.135-138
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• 2002

Peer-to-Peer 네트워크 상에서 구성원과 구성원 사이에 필요한 정보를 이용하기 위해서 각 구성원 및 구성원이 보유한 데이터에 대한 신뢰도(Trust)를 측정하는 일은 매우 중요하다. 이 논문에서는 네트워크 상에서 구성원 사이에 신뢰도에 대한 관계성을 정의하는 기존의 신뢰도 관계성 모델의 한계점을 개선한 혼합형 신뢰도 관계성 모델을 제시하고, 신뢰도 추천 프로토콜과 신뢰도 측정에 대한 확장 및 개선점을 제안한다.

• Proceedings of the Korean Information Science Society Conference
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• 2005.07b
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• pp.13-15
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• 2005

P2P(Peer-to-Peer) 시스템은 대용량의 데이타를 공유하는데 유용하며, 네트워크 구조에 따라 중앙 집중형, 구조적 분산형, 그리고 비구조적 분산형으로 분류된다. 이 중 Gnutella와 같은 비구조적 분산형 P2P 시스템은 확장성과 신뢰성 측면에서 장점을 갖지만, 참여하는 노드의 수가 증가함에 따라 원하는 자원을 액세스하는 비용도 증가하는 문제를 가진다. 데이터 중복을 이용해 이러한 문제를 해결할 경우 중복된 데이타들의 일관성 유지를 위한 기법이 필요하다. 본 논문에서는 특정 노드가 갱신한 데이타를 중복된 사본을 저장하고 있는 다른 노드에 전파하기 위한 하이브리드 push/pull 기반의 갱신 전파 기법을 제안한다.

• Proceedings of the Korean Information Science Society Conference
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• 2004.10a
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• pp.49-51
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• 2004

데이터 그리드를 위한 기존의 복제 정책은 계층적 구조를 기반으로 하고 있기 때문에 상위계승에서 하위계층으로만 데이터를 복제할 수 있어 비효율적이다. 따라서 본 논문에서는 기존 데이터 그리드의 계층적 구조에 P2P(Peer-to-Peer)시스템을 적용하여 효율적으로 복제본을 유지할 수 있는 새로운 복제 정책을 제안한다. 이 정책의 특징은 클라이언트 노드의 저장 공간 일정 부분을 임계 구역(critical section)으로 지정하여 데이터 조작을 방지함으로써 클라이언트 노드도 데이터 복제본을 저장할 수 있는 기능을 가지도록 한 것이다. 따라서 계층적 구조에서 상위 계층뿐만 아니라 동일 계층 또는 클라이언트 노드들 간의 데이터 전송이 가능하기 때문에 데이터 그리드의 성능을 향상시킬 수 있다.

• International Journal of Internet, Broadcasting and Communication
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• v.16 no.1
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• pp.36-46
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• 2024

This study is a descriptive survey to determine the effects of fundamentals of nursing skills education with peer evaluation on self-leadership, self-directed learning ability, and learning attitude. The factors affecting self-directed learning ability were peer evaluation, self-leadership, and learning attitude (F=118.81, p<.001), with an explanatory power of 50.4%. The factors affecting learning attitude were peer evaluation, self-leadership, and self-directed learning ability (F=48.89, p<.001), with an explanatory power of 29.5%. Based on the results of this study, we believe that it is necessary to apply various teaching methods such as peer evaluation and promote self-leadership to improve self-directed learning and learning attitude.

• The Korean Journal of Elementary Counseling
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• v.10 no.2
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• pp.167-184
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• 2011

This study has investigated how five peer status groups that were selected by a social skills scale exhibit different peer relationship problems by means of averages, standard deviations, and profile analysis. Social skills scale developed by Yi-Hwan Ahn(2007) and the inventory of peer relationships by Hae-Won Jung(2007) were administered to 551 fifth and sixth graders in 9 elementary schools located in Gyungnam province, and averages and standard deviations of 5 peer status groups' peer relationship problems were explored. Also in order to see if differences exist among 8 sub-scales in the inventory of peer relationships according to the peer status, an average profile of scores was represented by a graph and multivariate analysis was carried out. The main results of the study are as follows. First, statistical analysis of 551 cases included in the study showed the children were distributed into the Average group(319, 57.9%), the Popular group(111, 29.1%), the Rejected group(70, 12.9%), the Controversial group(41, 7.4%), and the Neglected group(10, 1.8%), in that order. Second, as a result of comparing average scores for each measure in the inventory of peer relationships according to the peer status group, a significant difference was found to exist according to a child's peer status. The Popular group showed the lowest scores in Too Controlling, Hard to be Supportive, the Cold, and Non-Assertive among the 5 peer status groups whereas the Rejected group showed the highest scores in Social Avoidant, Non-Assertive, and Too Responsible. Third, marked differences according to the peer status group were found. The Popular group showed the lowest profile among the peer status groups whereas the Rejected group had the highest profile. In the sub-scales of the peer relationship problems, the Rejected children showed a significantly higher level of Socially Avoidant and Non-Assertiveness in comparison to the Popular children, which implies the Popular children group has lower levels of peer relationship problems than the other groups.