• 한국산업정보학회:학술대회논문집
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• 한국산업정보학회 1999년도 춘계학술대회 발표논문집
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• pp.30-35
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• 1999

Recently, many companies want to accept and operate ERP(Enterprise Resource Planning) system in their fields ERP does not only include business, but also include finance, account, trade, personnel and BPR(Business Process Reengineering). Especially, it is necessary to have ERP system for companies which have lots of external businesses such as trade and communication sector. In modern society, the manufacture field faces on variable chances of Environment. For this situation, the application of Information technique is one of the main point maintain competitive power. The company should chose a proper method for their future and build Unified Information System on its suitable situation. Nowadays, Adjustment and application of technical method for Internet/Intranet and raised and more advanced Extranet gains its force at the moment. The Unification of ERP and POP system under the distributed environment like this will have a huge influence to us. In this subject, I will think about POP system for operating EPR system and improve its defects that can operate more effective sales, circulation, demand plan. Also, I suggest a proper POP system can handle seperated resources in each part of factory for a plan of shot period, order operating, factory inventory, process control.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2003년도 추계학술발표회
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• pp.462-466
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• 2003

This study was conducted to examine the potential of biosparging process in removing diesel contaminated soil and groundwater. The experiment was carried out lab-scale biosparging reactor and the biodegradation rate of diesel was evaluated as function of air injection rate and pattern. When renter was operated as air injection rate of 1000$m\ell$/min and pulsed air injection(15min pulse, 15min downtime), DO concentration in the renter was higher than another operating condition. The evidence for biodegradation of diesel was the $O_2$ utilization and $CO_2$ product following the cessation of sparging. Especially, air injection rate of 2000$m\ell$/min and pulsed air injection(15min pulse, 15min downtime) enhanced the diesel biodegradation during the operating. After 120day, the biodegradation rate of diesel was decreased as the lack of carbon source.

• 한국시뮬레이션학회:학술대회논문집
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• 한국시뮬레이션학회 2001년도 춘계 학술대회 논문집
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• pp.62-66
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• 2001

Advanced system architectures or frameworks proposed by researchers are usually verified by implementing their prototype systems, but it is very difficult to integrate them with operating legacy systems to show their applicability. Thus, a test bed approach is widely adopted to provide a system environment that imitates the operations of real legacy systems and their interactions. In this paper, we introduce our experiences to implement a test bed as a system environment on which we have implemented a prototype system to verify our studies for process information sharing. The test bed simulates simultaneously operating workflow systems and their interactions. We also show the result of the prototype system that was Implemented on the test bed.

• International Journal of Reliability and Applications
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• 제4권2호
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• pp.79-95
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• 2003

Manufacturers collect and analyze field reliability data to enhance the quality and reliability of their products and to improve customer satisfaction. To reduce the data collecting and maintenance costs, the amount of data maintained for evaluating product quality and reliability should be minimized. With this in mind, some industrial companies assemble warranty databases by gathering data from different sources for a particular time period. This “marginal count failure data” does not provide (i) the number of failures by when the product entered service, (ii) the number of failures by product age, or (iii) information about the effects of the operating season or environment. This article describes a method for estimating age-based claim rates from marginal count failure data. It uses covariates to identify variations in claims relative to variables such as manufacturing characteristics, time of manufacture, operating season or environment. A Poisson model is presented, and the method is illustrated using warranty claims data for two electrical products.

• 한국군사과학기술학회지
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• 제13권5호
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• pp.852-860
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• 2010

An environment in which the software is operated become more complex and changed dynamically. Such software requires the ability to adapt in accordance with operating environments, by monitoring the changes of user requirements and operating environments. Especially, the mobile device used in military operation requires more dynamical adaptation than the mobile device in normal environment. In this paper, we propose MOSAIC architecture based on Self-Adaptive Software suitable for military mobile device and verify the results. The proposed architecture consists of context manager, evaluation manager and adaptation manager. We simulate the MOSAIC architecture by modelling PRE(Position Reporting Equipment) used in the army and verify four types of operational mode and dynamical reconfiguration of user interface.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2010년도 추계학술대회
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• pp.574-576
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• 2010

본 논문에서는 최근 급속히 보급되고 있는 다양한 스마트폰에서 응용 프로그램을 개발하기 위한 환경을 구축하는 방법을 소개하고자 한다. 전 세계적으로 다양한 스마트폰들과 다양한 운영체제가 활용되고 있지만, 본 논문에서는 국내에 많이 보급되어 있고 향후에도 많이 활용될 것으로 판단되는 세 가지 스마트폰 즉, 마이크로소프트의 Windows Mobile(최근 Windows Phone 7), 애플의 아이폰, 구글의 안드로이드폰을 이용하여 응용 프로그램을 개발하고자 할 때 필요한 환경(장비와 소프트웨어) 구축에 대해 설명하고자 한다.

• 한국항공우주학회지
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• 제39권11호
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• pp.1042-1051
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• 2011

본 논문에서는 복수 무인기의 편대 비행을 위한 탑재 무선 통신 및 임무통제 네트워크 (지상관제시스템)를 포함하는 통합 운영 시스템의 구성 방안을 제시한다. 이를 위해 편대비행을 위한 무인기에 탑재되는 시스템들의 구성 형태에 따라 다양한 운영 시스템들을 분류하였다. 또한 각각의 운영 시스템에 대한 장단점 및 고장에 대한 신뢰성을 파악하였다. 이 결과를 바탕으로 편대기의 임무비행을 수행하는데 있어 적절한 운영 시스템의 형태를 결정하고 구성 요소들을 개발하였다. 제안된 운영 시스템을 이용하면, 이종의 비행체로 편대를 구성할 수 있으며, 복잡한 임무를 여러 무인기에 나누어 수행 가능하고, 단일 임무의 협업 또는 다양한 임무의 동시 수행이 가능하다.

• 한국컴퓨터정보학회논문지
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• 제7권1호
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• pp.74-79
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• 2002

환경분야에서 산업화와 도시화에 따른 수질오염의 문제를 해결하기 위해 오수처리시설을 감시하는 장치들이 개발되고 있다. 본 연구에서는 원격지의 운영자가 여러 지역에 설치된 오수처리장치의 가동 상태를 확인하고 점검할 수 있는 가동상태 확인기기 네트워크의 운영 소프트웨어를 제안하였다. 소프트웨어는 개발된 하드웨어를 통해 실행되며, 데이터베이스, 데이터전송, 가동상태 분석을 위한 프로그램모듈로 구성된다 본 연구를 수행한 결과로서 환경 장비의 운영 관리의 효율성을 개선할 수 있음을 확인하였다.

• 산업경영시스템학회지
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• 제46권4호
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• pp.281-293
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• 2023

This study addresses the optimal design methodology for switching between active electronically scanned array (AESA) radar operating modes to easily select the necessary information to reduce pilots' cognitive load and physical workload in situations where diverse and complex information is continuously provided. This study presents a procedure for defining a hidden Markov chain model (HMM) for modeling operating mode changes based on time series data on the operating modes of the AESA radar used by pilots while performing mission scenarios with inherent uncertainty. Furthermore, based on a transition probability matrix (TPM) of the HMM, this study presents a mathematical programming model for proposing the optimal structural design of AESA radar operating modes considering the manipulation method of a hands on throttle-and-stick (HOTAS). Fighter pilots select and activate the menu key for an AESA radar operation mode by manipulating the HOTAS's rotary and toggle controllers. Therefore, this study presents an optimization problem to propose the optimal structural design of the menu keys so that the pilot can easily change the menu keys to suit the operational environment.

• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 2004년도 추계학술대회 논문집
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• pp.471-472
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• 2004