• International Journal of Aeronautical and Space Sciences
• /
• 제13권3호
• /
• pp.377-385
• /
• 2012

The Automatic Dependent Surveillance Broadcast (ADS-B) system is a key component of CNS/ATM recommended by the International Civil Aviation Organization (ICAO) as the next generation air traffic control system. ADS-B broadcasts identification, positional data, and operation information of an aircraft to other aircraft, ground vehicles and ground stations in the nearby region. This paper explores the ADS-B based trajectory prediction and the conflict detection algorithm. The multiple-model based trajectory prediction algorithm leads accurate predicted conflict probability at a future forecast time. We propose an efficient and accurate algorithm to calculate conflict probability based on approximation of the conflict zone by a set of blocks. The performance of proposed algorithms is demonstrated by a numerical simulation of two aircraft encounter scenarios.

• International Journal of Aeronautical and Space Sciences
• /
• 제10권1호
• /
• pp.37-45
• /
• 2009

A method of conflict detection and resolution is described by using simple geometric approach. Two VAVs are dealt with and considered as point masses with constant velocity. This paper discusses en route aircraft which are assumed to be linked by real time data bases like ADS-B. With this data base, all DAVs share the information each other. Calculating PCA (Point of Closest Approach), we can evaluate the worst conflict condition between two VAVs. This paper proposes one resolution maneuvering logic, which can be called 'Vector Sharing Resolution'. In case of conflict, using miss distance vector in PCA, we can decide the directions for two VAVs to share the conflict region. With these directions, VAVs are going to maneuver cooperatively. First of all, this paper describes some '2-D' conflict scenarios and then extends to '3-D' conflict scenarios.

• 한국건축시공학회:학술대회논문집
• /
• 한국건축시공학회 2011년도 춘계 학술논문 발표대회 1부
• /
• pp.181-184
• /
• 2011

The earlier studies which are related to conflict management for urban regeneration project were based on limited case-studies on a specific phase. In addition, those studies did not considered a multidisciplinary approach for critical factor of conflict occurrence. In this reason, to establish a practical management or a policy is limited. In this paper, 'Good communication and information sharing' and 'Cooperativeness of stakeholders on project' are defined by critical factors for minimization of conflict between stakeholders. Furthermore we analysis the influence of those factors to minimization of conflict using path-analysis. This paper contributes to increase the efficiency of conflict management through understanding influence of each factors.

• ETRI Journal
• /
• 제29권3호
• /
• pp.311-321
• /
• 2007

In this paper, we propose a user-centric conflict management method for media services which exploits personal companions for the harmonious detection and resolution of service conflicts. To detect conflicts based on the varying characteristics of individual users, the proposed method exploits the unified context describing all users attempting to access media services. It recommends and mediates users' preferred media contents through a shared screen and personal companions to resolve the detected conflicts. During the recommendation, a list of preferred media contents is displayed on the shared screen, and a personally preferred content list is shown on the user's personal companion comprising the selection of media contents. Mediation assists the selection of a consensual service by gathering the users' selections and highlighting the common media contents. In experiments carried out in a ubiHome, we observed that recommendations and mediation are useful in harmoniously resolving conflicts by encouraging user participation in conflict situations.

• 한국정보통신학회:학술대회논문집
• /
• 한국정보통신학회 2016년도 추계학술대회
• /
• pp.200-201
• /
• 2016

최근 사물인터넷 시대가 열리면서 다양한 장치들이 무선 통신을 통해 연결되고 있다. 사물인터넷이 적용되는 장치들은 제한된 통신성능을 가지므로 축약 ID를 이용해 효율적으로 데이터 전달을 수행할 수 있다. 그러나 장치의 이동에 따라 축약 ID의 충돌이 발생할 수 있으며 ID 충돌은 네트워크의 성능감소를 유발하므로 ID 충돌 관리가 필요하다. 본 논문에서는 축약 ID를 이용하는 동적 사물인터넷 환경에서 ID 충돌을 회피하도록 하여 통신의 효율성을 향상시켰다. 시뮬레이션을 통해 성능평가를 수행하였으며, 전송 성공률이 32.4% 향상되었고, 중복 데이터가 66.3% 감소됨을 확인하였다.

• 디지털융복합연구
• /
• 제12권9호
• /
• pp.387-406
• /
• 2014

이해관계 충돌 등으로 인한 조직내 갈등은 불가피하며 올바른 갈등관리는 조직의 효과성에 미치는 영향을 고려할 때 특히 중요하다. 본 연구는 공공기관 정보보안종사자가 직무수행시 겪는 갈등요인에 따른 갈등수준, 갈등요인과 갈등수준과의 관계, 나아가 직무만족과 직무변경의도와의 관계를 밝힘으로써 바람직하고 효율적인 갈등관리방안과 지속적 직무 역량확보를 도모하는데 목적이 있다. 21개 공공기관 정보보안직무종사자 202명을 대상으로 한 설문조사와 실증분석 결과, 사회인구학적 특성에 따라 갈등요인, 갈등수준, 직무만족, 직무변경의도에 차이가 존재하며, 갈등요인인 목표의 차이, 성과기준 및 보상체계, 개인 특성, 역할 불만족, 지각 차이에 대한 인식이 높을수록 갈등수준도 높아짐을 파악하였다. 또한, 종합갈등수준에 미치는 영향력은 개인특성이 가장 높고, 갈등수준의 불신은 직무만족에, 직무만족은 직무변경의도에 부(-)의 영향을 미친다. 이와 같은 연구결과는 정보보안조직의 효율적 운영, 직무체계개선에 중요한 기초자료가 됨은 물론 직무변경 방지, 사후관리에 유의미할 것이다. 특히 정보보안종사자의 직무이탈을 방지하고, 유관 정책수립이나 제도개선에 적용함으로써 미래의 정보보안 핵심인력 양성에 이바지 할 것을 기대한다.

• 한국정보과학회논문지:소프트웨어및응용
• /
• 제26권1호
• /
• pp.80-80
• /
• 1999

As Temporal DataBase Systems(TDBSs) manages both the historical versions and the current version of each data item, a temporal transaction may access more data records than atransaction in traditional database systems. Hence, the concurrency control subsystem of temporaldatabase management system should be able to correctly and efficiently detect actual conflicts amongconcurrent temporal transactions while the cost of detecting conflicts is maintained in low levelwithout detecting false conflicts which cause severe degradation of system throughput.In this paper, Two-Level Conflict Detection(TLCD) scheme is proposed for efficient conflictdetection between concurrent temporal transactions in TDBs. In the proposed TLCD scheme, sincechecking conflict between concurrent temporal transactions is performed at two levels, i, e., logicallevel and physical level, conflicts between concurrent temporal transactions are efficiently and correctlydetected,Furthermore, we also evaluate the performance of the proposed TLCD scheme with those oftraditional conflict detection schemes, logical-level conflict detection scheme and physical-level conflictdetection scheme by simulation approach, The result of the simulation study shows that the proposedTLCD scheme outperforms the previous conflict detection schemes with respect to the averageresponse time.

• 한국IT서비스학회지
• /
• 제5권1호
• /
• pp.83-95
• /
• 2006

The main objectives of this study are (1) to identify the conflict types in IS integration process with respect to M&A, (2) to propose the ways to manage the origin of conflict to be expected, and (3) to develop the conflict management model which establishes the relationship among the M&A strategy, the IS integration strategy and change management process that influence the source of conflict. In order to achieve these research objectives, this study focuses on banking industry under M&A with the viewpoint of change management instead of existing technology-oriented IS integration strategy. The findings of this study are thought not only to be useful as a practical guideline in carrying out IS integration project under M&A but also to provide significant basis for constructing the theoretical framework of effective IS integration strategy.

• International Journal of Advanced Culture Technology
• /
• 제7권1호
• /
• pp.58-63
• /
• 2019

The purpose of the study was to examine the moderating effect of childcare teachers' role conflict on the relationship between their professionalism perception and teaching. The subjects were 365 childcare teachers who had children. They were asked to complete the survey on professionalism perception, role conflict in women, and teacher efficacy along with their background information. The collected data were analyzed using SPSS version 24.0 software. Descriptive, Pearson's correlation analyses, and a hierarchical regression analysis were conducted. As results, first, the childcare teachers with high professionalism perception showed high teacher efficacy, and the childcare teachers with high role conflict showed low teacher efficacy. Second, there was the moderating effect of role conflict on the relationship between professionalism perception and teacher efficacy.

• 한국언론정보학보
• /
• 제51권
• /
• pp.87-116
• /
• 2010

본 연구는 대인 갈등의 특징을 분석하고, 갈등 조정의 서사가 어떠한 특징을 지니고 구성되며, 조정 과정을 거치면서 어떠한 해체 과정을 통해 대안적 이야기로 변화되는지를 분석하는 것을 목적으로 한다. 이 과정에서 갈등조정가가 동원하는 커뮤니케이션 기법을 중심으로 수행하는 역할을 밝히려는 것도 또 다른 연구의 목적이 된다. 본 연구를 통해서 포스트모던 이론의 하나인 사회구성주의 관점의 서사적 갈등 조정의 유용성을 확인할 수 있었다. 이야기 구성을 통해 이루어지는 서사적 갈등 조정은 과거의 경험에 대해서 심리 중심으로 접근하는 갈등에 대한 치료적 방식과 함께 미래에 대한 대안을 행위 중심으로 접근한다. 특히 갈등의 문제를 대화로 연결하고, 갈등과 문제의 의미를 공동으로 창조하여 발전시켜 나가는 체계로서의 서사 조정은 인간의 주체성과 갈등의 고유성을 전제하면서 새로운 변화를 추구한다. 이러한 지점이 갈등을 커뮤니케이션의 관점에서 접근해야 한다는 주장에 정당성을 부여한다. 특히 이 과정에서 다양한 커뮤니케이션 기법들이 갈등 조정에 결정적인 효력을 발휘하고 있다는 것은 갈등 현장에서의 조정 전문 분야 중의 하나로 커뮤니케이션학을 정립할 수 있는 핵심적 근거가 될 것으로 예상된다.