• 정보관리학회지
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• 제30권3호
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• pp.89-109
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• 2013

본 연구는 미국 문헌정보학과 홈페이지에 나타난 강령분석을 바탕으로 문헌정보학의 주요 개념에 대한 담론을 연구하고자 한다. 이를 위해 본 연구는 비평적 담론분석을 사용하였으며, 1) 문헌정보학 강령구조의 접근성, 제목, 구조를 조사하였으며, 2) 정체성 분석을 위해 의무적 용법, 어휘분석, 행위분석을 실시하였다. 3) 문헌정보학의 다양성을 분석하기 위하여 비교분석을 통한 문헌정보학과의 특성을 살펴보았다. 본 연구는 담론분석을 문헌정보학 분야와 연계하여 정체성을 밝히는 연구의 예가 될 것으로 기대한다.

• 정보과학회 컴퓨팅의 실제 논문지
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• 제23권10호
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• pp.579-587
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• 2017

사이버 임무 피해 정량화는 정해져있는 임무에 따라 움직여 집단의 목표를 이룩하거나 이윤을 창출하는 군(軍)이나 기업들에게 빠질 수 없는 필수적인 작업이다. 조직이 지닌 자산에 대한 피해가 발생하였을 때, 수행 목표에 대한 피해를 최소화하기 위해 남은 자산만으로 달성할 수 있는 임무의 최대 수용력(capacity)을 정량화하고 빠른 시간 안에 새로운 차선책을 마련하여야 한다. 이를 위해서자산과 임무에 대한 관계를 모델링하여 정형화하면 사이버 공격이 임무에 미친 피해 영향도를 계산할 수 있다. 본 논문에서는 자산과 과업의 관리 업무를 분리하여 효율적인 관리가 가능하도록 자산과 임무 사이의 의존성에 대한 모델을 적용하였고, 적용한 모델을 바탕으로 벡터 단위의 오퍼레이션을 이용하여 계산의 병렬화나 버퍼를 이용해 연산속도를 향상시키는 등 빠른 시간 안에 계산을 완료할 수 있는 최적화된 시스템을 구현하였다.

• Journal of Chest Surgery
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• 제51권2호
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• pp.156-158
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• 2018

Cervicothoracic thymic cysts are rare and difficult to diagnose preoperatively. We report a case of a cervicothoracic thymic cyst presenting as a lateral neck mass and mimicking a laryngocele in a 3-year-old boy and its definitive management.

• 항공우주기술
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• 제12권2호
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• pp.163-172
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• 2013

통신, 해양, 기상의 세 분야 복합 임무를 수행하는 천리안위성(Communication Ocean Meteorological Satellite: COMS)은 정지궤도 동경 $128.2^{\circ}$에서 2011년 4월부터 현재 정규 운영 임무를 수행하고 있다. 기상 및 해양 임무 운영과 위성 제어 및 관리를 위해 위성 임무 계획이 매일 수행되고 있다. 위성 임무 계획은 위성 실시간 운영을 통해 위성에 전송되고, 전송된 임무 계획에 따라 위성은 임무를 수행한다. 본 논문에서는 천리안위성의 임무 계획 특성으로 지상국 장비 구성과 일일, 주간, 월간, 계절별 운영 업무 특성을 논하였다. 천리안위성의 정규 운영 첫 1년간 운영 결과에 대한 토의를 통해 성공적인 임무계획 결과 확인도 제시하였다.

• 한국군사과학기술학회지
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• 제17권2호
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• pp.167-174
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• 2014

In this paper, we address a task allocation problem for a robot team that performs a search and attack mission. The robots are limited in sensing and communication capabilities, and carry different types of resources that are used to attack a target. The environment is uncertain and dynamic where no prior information about targets is given and dynamic events unpredictably happen. The goal of robot team is to collect total utilities as much as possible by destroying targets in a mission horizon. To solve the problem, we propose a distributed task allocation framework incorporated with effective resource management based on resource welfare. The framework we propose enables the robot team to retain more robots available by balancing resources among robots, and respond smoothly to dynamic events, which results in system performance improvement.

• 시스템엔지니어링학술지
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• 제18권1호
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• pp.14-32
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• 2022

In this paper, we report the results of a conceptual study to develop of a multi-purpose medium-sized UAV that can safely perform missions in harsh maritime environments. In this study, we focused on developing UAVs capable of performing three maritime missions that urgently require the application of medium-sized UAVs: marine ecosystem management, ocean surveillance system, and response to marine accidents. Furthermore improvement points for the above three naval missions using medium-sized UAVs were derived in preparation for the problems of the existing mission performance. Finally, by developing and analyzing the utilization scenario of the medium-class UAV, the required performance suitable for each mission was defined and assigned to the related mission equipment, A new maritime management plan was proposed using the medium-class UAV system equipped with replaceable mission equipment.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2005년도 Proceedings of ISRS 2005
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• pp.557-560
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• 2005

The Korea Multi-Purpose SATellite-2 (KOMPSAT -2) will be launched into a circular sun synchronous orbit in Dec. 2005. For the mission operation of the KOMPSAT-2 satellite, KARl Ground Station (KGS) consists of the Mission Control Elements (MCE), Image Reception & Processing Elements (IRPE) and the overseas stations. For the oversea stations, the Kongsberg Satellite Services (KSAT) is the prime supplier of support service. KSAT has the capability to provide Tracking Telemetry and Commanding (TT&C) nominal, contingency and anomaly support for every single orbit for most polar orbiting satellites. Also KSAT provides nodal service through the network management functionality for all oversea ground stations. This paper describes the oversea stations and the support for Launch and nominal TT&C services for KOMPSAT-2 and the operation plan for KOMPSAT-2.

• 항공우주시스템공학회지
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• 제9권2호
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• pp.41-46
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• 2015

The various risk factors that affected schedule, costs and mission success, etc. in development of the satellite. This paper derives the considerable "Cost of Quality" factors in the satellite development phase through the survey of practical techniques in respect of measurement of quality cost in the commercial products manufacturing, and proposes mitigation strategy of quality cost using the approach that can be minimized it.

• 대한인간공학회지
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• 제34권4호
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• pp.293-302
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• 2015

Objective: This study was performed to investigate the prevalence of musculoskeletal disorders in auto workers of a mission assembly plants. Background: Most studies of musculoskeletal disorders have used car assembly line workers as their participants. However, little research has been done on musculoskeletal disorders afflictions of mission assembly line workers. Method: Through a focus group interview with an ergonomist and a manager at a mission assembly plant site, a questionnaire was developed for musculoskeletal disorders. The questionnaire consisted of five parts, demographic factors, musculoskeletal disorder symptoms, and musculoskeletal disorder experiences; 137 workers participated in this survey. The surveys were analyzed by correlation and Chi-squared analysis. Results: Musculoskeletal disorder symptoms and serious pain were reported in the neck, shoulder, back, and fingers. These problems were statistically related to various demographic factors, such as age, stature, stretching, and work satisfaction. Conclusion: Treatment of musculoskeletal disorders should consider the workers' traits. If there is no specific cause of the pain, developing stretches and exercises before and after work should be applied to prevent musculoskeletal disorders. Application: The results of this study can be used to develop guidelines to prevent injury in auto workers at mission assembly plants.

• 한국군사과학기술학회지
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• 제21권2호
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• pp.235-245
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• 2018

This study first analyzes the necessity and the validity of procuring nuclear-powered submarines, and presents an optimization model as an integer program to determine a minimum required level of them. For an optimization model, we characterize a submarine's mission, ability and availability, and apply these to the model by constraints. Then, we assign the submarines available currently and the nuclear-powered submarines, that will be newly introduced, to the predefined missions over the planning time periods in a way that the number of nuclear-powered submarines be minimized. Randomly generated missions are employed to solve a mission assignment problem, and the results show that our integer programming model provides an optimal solution as designed, and this can provide a guideline for other weapon system procurement processes.