• 제목/요약/키워드: Operation Strategies

검색결과 936건 처리시간 0.028초

아키텍처 기반의 국방 Modeling & Simulation 체계 구축 및 운영에 관한 연구 (A Study on the Implementation and Operation of an Architecture-Based M&S System for Ministry of National Defense)

  • 김형진;박찬욱
    • 정보화정책
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    • 제18권1호
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    • pp.73-99
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    • 2011
  • 우리 군은 컴퓨터와 네트워크, 통신 기술의 발달과 더불어 지난 수년간에 걸쳐 워게임 모델을 개발, 운영해 옴으로써 국방 M&S 분야의 수준을 꾸준히 향상시켜 왔다. 특히 다수의 연습/훈련 모델과 분석이나 획득분야에 대한 모델 개발도 각 군을 중심으로 많은 사업이 진행되고 있다. 하지만, 국방 M&S 발전을 위해서는 보다 현실적으로 실태를 파악하고 발전방향을 모색할 필요가 있다. 특히 워게임 분야는 2006년 자원아키텍처 구축을 시작으로 전장 및 정보환경 아키텍처 등 국방아키텍처 구축사업을 수행하고 있으나, 전장아키텍처 구축시 연습 훈련분야 기능이 제외되어 별도의 워게임 아키텍처 구축이 요구되었다. 한국군의 실전적 합동 연합 연습 및 훈련지원을 보장하고 국방 및 전장아키텍처 이행계획에 대한 효과적인 검증도구로 활용할 수 있는 합동워게임 아키텍처 구축을 위하여 현 워게임체계에 대한 현황을 파악하고 합동워게임 아키텍처 구축에 대해서 제언하였다.

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사용자 참여형 데이터베이스 구축 연구: 코센 오픈랩 운영사례를 중심으로 (Study on the Building up the Laboratory Database: Case Study from the KOSEN OpenLab Service)

  • 윤정선;정혜주;한선화
    • 정보관리연구
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    • 제41권2호
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    • pp.95-110
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    • 2010
  • 본 연구에서는 한민족과학기술자네트워크, 코센의 오픈랩이라는 서비스를 타겟으로 하여 사용자 참여형 서비스를 어떻게 활성화 할 수 있는지를 연구해 보았다. 과학기술 전 분야에 대한 연구실 데이터베이스 서비스인 오픈랩은 일방적인 데이터 수집에 의한 DB 구축이 아닌 사용자들이 자신의 연구실 정보를 직접 입력하는 자발적인 참여를 지향하고 있다는 점에서 여타 서비스들과는 다르다. 사용자 참여형 서비스는 게시판 개설만으로는 저절로 운영되지 않으므로, 홍보, 활성화이벤트 개최, 타 서비스와의 연계 등 다양한 전략을 세우고 실행해 보았다. 그 결과 현재 약 4,300개의 연구실 데이터를 확보할 수 있었다. 사용자 참여형 서비스는 웹 2.0 시대의 핵심 개념이라 할 수 있으므로 본 연구는 유사 서비스의 운영에 도움이 되리라 생각되며 특히 과학기술자들이라는 특수 집단을 대상으로 서비스하는 정보 사이트의 운영에 기여하는 바가 크리라 기대된다.

Sparganosis in the Lumbar Spine : Report of Two Cases and Review of the Literature

  • Park, Jin-Hoon;Park, Young-Soo;Kim, Jong-Sung;Roh, Sung-Woo
    • Journal of Korean Neurosurgical Society
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    • 제49권4호
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    • pp.241-244
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    • 2011
  • Sparganosis is a rare parasitic infection affecting various organs, including the central nervous system, especially the lumbar epidural space. This report describes the identification of disease and different strategies of treatments with preoperative information. A 42-year-old man presented with a 2-year history of urinary incontinence and impotence. He had a history of ingesting raw frogs 40 years ago. Magnetic resonance (MR) imaging showed an intramedullary nodular mass at conus medullaris and severe inflammation in the cauda equina. A 51-year-old woman was admitted with acute pain in the left inguinal area. We observed a lesion which seemed to be a tumor of the lumbar epidural space on MR imaging. She also had a history of ingesting inadequately cooked snakes 10 years ago. In the first patient, mass removal was attempted through laminectomy and parasite infection was identified during intra-operative frozen biopsy. Total removal could not be performed because of severe arachnoiditis and adhesion. We therefore decided to terminate the operation and final histology confirmed dead sparganum infection. We also concluded further surgical trial for total removal of the dead worm and inflammatory grannulation totally. However, after seeing another physician at different hospital, he was operated again which resulted in worsening of pain and neurological deficit. In the second patient, we totally removed dorsal epidural mass. Final histology and enzyme-linked immunosorbent assay (ELISA) confirmed living sparganum infection and her pain disappeared. Although the treatment of choice is surgical resection of living sparganum with inflammation, the attempt to remove dead worm and adhesive granulation tissue may cause unwanted complications to the patients. Therefore, the result of preoperative ELISA, as well as the information from image and history, must be considered as important factors to decide whether a surgery is necessary or not.

경영시스템 도입 중소기업의 품질이행율 향상을 위한 품질기록 관리운영의 표준화 사례연구 (Introduction of Management System Case Study on Standardization of Quality Record Management to Improve Quality Performance Rate of SMEs)

  • 조철희;박병화;박진이
    • 품질경영학회지
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    • 제47권4호
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    • pp.911-926
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    • 2019
  • Purpose: In an infinite market competition, companies are adopting management systems to gain a competitive advantage. The expectancy effect of the management system is management performance improvement and accurate measurements. These can be made through quality records with integrity and maintainability. This paper examines the operation of records management standards, which are records, storage and management standards for quality records to understand the needs of records management standards and empathize with their needs. Methods: This paper examines PEC's (Pields Engineering Co., Ltd.) specific processes and standards for integrating individual management systems and establishing records management standards. We also look at the specific features of the Search Tool and Document Storage Management Standards that support records management standards. Results: The integration process of PEC's individual management system consists of five steps. A PDCA-based process was established to erode the confusion and inefficiencies caused by overlap between individual management systems. Also, by accurately grasping corporate competence, PEC established a record management standard suitable for the characteristics of the company. PEC's records management standards are used as a useful standard for organizing quality records, and have an impact on management performance improvement. Conclusion: PEC's records management standards enable the verification of quality performance rates and performance measures. Companies can implement appropriate quality improvement strategies based on the numbers identified by introducing records management standards. Companies can succeed in improving management performance when operating quality management that combines performance measurement techniques and records management standards.

의류샘플 생산 프로세스 상 발생하는 오류에 관한 연구 (A Study on Errors that Occur in the Garment Sample Production Process)

  • 김성현;도월희
    • 한국의류산업학회지
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    • 제19권3호
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    • pp.296-301
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    • 2017
  • This study researched the status and prospect of a natural dye program in Gyeongsang region that focused on private centers with sufficient infrastructure and abundant human resources were available for natural dyes. The entire site for metropolitan cities that have difficulty in securing the land are limited (as well as smaller) because they are closer to the city; in addition, they do not own the drying house and the agricultural land for natural dyes. It is understood that the one-time program of all centers researched help to promote and maintain the centers rather than generating profit; in addition, it is shown that Jun - Aug (summer) is preferred over Dec - Feb (winter). This program uses natural indigo; consequently, natural dye program for hobby and education is operated when it is required because the number of participants are low in most cases, Persimmon Juice is used for the dyeing raw materials. Programs in operation are often outsourced with other institutes registered under private certification system; therefore, many cases of starting business are found in the institutes operating programs directly after obtaining the certification. Their plans do not allow for investment in facility such as enlargement of experience center and prospect of program; in addition, business value is generally bright for business strategies that include an exhibition shop for natural dye products and program development.

호텔 식음료공간의 디자인과정에서 영업성 검토에 관한 연구 - N 호텔의 사례를 중심으로- (Interior Design Process for Food & Beverage Facilities of a City Hotel)

  • 김정근
    • 한국실내디자인학회논문집
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    • 제1호
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    • pp.39-45
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    • 1992
  • Today the design is recognized as indispensible part in business activities and it is demanded as one of the management strategies. since the ultimate goal of a hotel lines in the pursuit of profit, it is important that the design of a hotel faithfuly reflects the demands of management at the time of its construction planning. Furthermore, hotel planning undergoes a complicated design phases on a large scale, thus, utilization of a design process that accomodates retional approaches scientific and structural design activities, which will further reduce errors in design steps and pave a way for effective attainment of the target. Especially the management and designers review and confirm the design in relation to the strategic manegiable objective sat the early basic stage. The baseline set here will serve as a direction for the detailed design. In this context, this thesis formulates a reference baseline in dividing the space in view of the overall profitability and is based upon a survey conducted on the correlation between the operation of food and beverage section and the space. First, downtown hotels now take on the role of a public facility to a great extent and the number of Koreans who visit the autxiliary facilities of hotel increases. Second, recently revenue from a food and beverage section is in downtown and the trend is especially obrious at western restaurant, buffet and bar. This necessitates the reevaluation of the business space allocation. Third, sales promotion plan includes diversification, dessection and scaling down of the food and beverage section areas, Fourth, a proper number of seats must be determined in regard to the average area of one seat shown in the survey. Fifth, dense seat arrangement would entail a curtailment rather than a hike in revenue. Sixth, the installation of private dining room is on the rise and in particular, in Japanese and Chinese restaurants. Seventh, business space with declined revenue tends to induce the integration of similar businesses.

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'긍정의 말' 실험학습이 새내기 간호 대학생의 부정적 정서, 자기효능감 및 스트레스 대처방식에 미치는 효과 (The Effects of 'Affirmative Language' Experiment on Negative Affect, Self-Efficacy and Stress Coping Style in Freshmen Nursing Students)

  • 차진경;문인오;최연숙;김지현
    • 한국학교ㆍ지역보건교육학회지
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    • 제15권2호
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    • pp.63-76
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    • 2014
  • Objectives: The purpose of this study was to explore the effects of 'affirmative language' experiment upon freshmen nursing students' negative affect, self-efficacy and stress coping style. Methods: A nonequivalent control quasi-experiment was conducted on the subjects of 55 freshmen nursing students for 26(experimental group) and 29(control group). Data were analyzed using x2-test and t-test for participants' homogeneity test and conducted content analysis of process diary record and personal impressions. Results: As for negative affect, in case of the experimental group, depression(t=-2.384, p=.022) and anxiety(t=-2.243, p=.025) were significantly low with no difference for the control group. As for self-efficacy, both experimental and control groups showed significance and as for stress coping style, the control group used sub-categorized strategies better than the experimental group. There were 4 topics and subsequent 15 topics derived from the content analysis. 'Affirmative language' experiment showed alleviation of depression and anxiety helpful for study participants in self-reporting measurement, and helpful for stress self-management competence. Conclusion: It is necessary to connect the curriculum operation with interest of competence and practice of students stress self-management through the participating experiment experience.

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원자력 시설 주변 지역주민의 원자력에 대한 인식 조사 (Investigation of Perception of Nuclear Power by the Local Residents Adjacent to Nuclear Installations)

  • 조경영;문주현
    • 방사성폐기물학회지
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    • 제9권3호
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    • pp.181-189
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    • 2011
  • 원자력시설의 원활한 건설 운영을 위해서는 해당 지역주민뿐만 아니라 일반 국민의 이해와 지지가 필요하다. 국가 에너지 안보와 경제성장을 위해 원자력을 지속 이용해야 하는 우리나라는 원자력의 사회적 수용성을 증진시키는 것이 중요하다. 원자력에 대한 사회적 수용성 수준을 파악하기 위해, 본 연구에서는 원자력발전소와 중 저준위 방사성폐기물처분장이 동시에 입지해 있는 경주 지역주민과 기타 지역주민의 원자력에 대한 인식을 설문 조사하였다. 설문조사는 총 450명을 대상으로 개별면접을 통해 이루어졌다. 본 설문조사를 통해 거주 지역에 따라 원자력시설에 대한 인식이 다소 다르다는 것을 확인할 수 있었으며, 지역별, 연령별 맞춤형 홍보 전략을 수립하는데 반영해야 할 시사점도 도출하였다.

A Ripple Rejection Inherited RPWM for VSI Working with Fluctuating DC Link Voltage

  • Jarin, T.;Subburaj, P.;Bright, Shibu J V
    • Journal of Electrical Engineering and Technology
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    • 제10권5호
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    • pp.2018-2030
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    • 2015
  • A two stage ac drive configuration consisting of a single-phase line commutated rectifier and a three-phase voltage source inverter (VSI) is very common in low and medium power applications. The deterministic pulse width modulation (PWM) methods like sinusoidal PWM (SPWM) could not be considered as an ideal choice for modern drives since they result mechanical vibration and acoustic noise, and limit the application scope. This is due to the incapability of the deterministic PWM strategies in sprawling the harmonic power. The random PWM (RPWM) approaches could solve this issue by creating continuous harmonic profile instead of discrete clusters of dominant harmonics. Insufficient filtering at dc link results in the amplitude distortion of the input dc voltage to the VSI and has the most significant impact on the spectral errors (difference between theoretical and practical spectra). It is obvious that the sprawling effect of RPWM undoubtedly influenced by input fluctuation and the discrete harmonic clusters may reappear. The influence of dc link fluctuation on harmonics and their spreading effect in the VSI remains invalidated. A case study is done with four different filter capacitor values in this paper and results are compared with the constant dc input operation. This paper also proposes an ingenious RPWM, a ripple dosed sinusoidal reference-random carrier PWM (RDSRRCPWM), which has the innate capacity of suppressing the effect of input fluctuation in the output than the other modern PWM methods. MATLAB based simulation study reveals the fundamental component, total harmonic distortion (THD) and harmonic spread factor (HSF) for various modulation indices. The non-ideal dc link is managed well with the developed RDSRRCPWM applied to the VSI and tested in a proto type VSI using the field programmable gate array (FPGA).

유효 POD를 이용한 물리적 결함 수의 추정 (Estimation of the Number of Physical Flaws Using Effective POD)

  • 이재봉;박재학;김홍덕;정한섭
    • 한국안전학회지
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    • 제21권4호
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    • pp.42-48
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    • 2006
  • The strategies of maintenance and operation are usually established based on the number of flaws and their size distribution obtained from nondestructive inspection in order to preserve safety of the plant. But non destructive inspection results are different from the physical flaws which really exist in the equipments. In case of a single inspection, it is easy to estimate the number of physical flaws using the POD curve. However, we may be faced with some difficulties in obtaining the number of physical flaws from the periodic in-service non destructive inspection data. In this study a simple method for estimating the number of physical flaws from periodic in-service nondestructive inspection data was proposed. In order to obtain the flaw growth history, the flaw growth was simulated using the Monte Carlo method and the flaw size and the corresponding POD value were obtained for each flaw at each periodic inspection time. The flaw growth rate used in the simulation was statistically calculated from the in-service inspection data. By repeating the simulation numerous flaw growth data could be generated and the effective POD curve was obtained as a function of flaw size. From the effective POD curve the number of physical flaws was obtained. The usefulness and convenience of the proposed method was evaluated from several applications and satisfactory results were obtained.