• The Transactions of the Korean Institute of Power Electronics
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• v.6 no.4
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• pp.341-347
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• 2001

Harmonics and fundamental reactive current of nonlinear loads in serious unbalanced power condition, are compensated by current synchronous detection(CSD) theory which is also acceptable for single phase power system. But, the CSD theory is not suitable any more, in case of controlled independently harmonics and reactive component. Therefore, a new algorithm, the expanded current synchronous detection(ECSD) theory for a three phase active power filter based on decomposition of fundamental reactive, distorted components, is proposed in this paper. The proposed ECSD theory is experimented and tested comparison with a few power theories under asymmetrical condition in power system.

• Pediatric Infection and Vaccine
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• v.8 no.2
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• pp.135-149
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• 2001

Purpose : To describe the characteristics of the claims for compensation and the methodology of investigations concerning adverse events following immunization(AEFI) and epidemiologic characteristics of the AEFI. From these results, to give a suggestion for improving AEFI surveillance system, consequently to stabilize National Immunization Program. Methods : Totally 61 cases were reported to the National Compensation Program and surveillance system of AEFI from 1995 to 2000. Documents from National Compensation Program, medical records and epidemiologic investigation reports of the cases were collected and analyzed. Results : The number of reported cases was 12 in 1995, 3 in 1996, 12 in 1998, 5 in 1999, and 29 in 2000, respectively. That of deaths was 24(39.3%) and 16 cases among them were autopsied(66.7%). That of claims for compensation was 36 and 17 cases among them were compensated(47.2%). The proportion of claim was lower in 1999~2000 than in 1995~1998, but proportion of compensation increased. Although proportion of investigation was lower in 1999~2000 than in 1995~1998, cases which were not epidemiologically investigated, decreased. The epidemiologic investigation launched within 24 hours after report increased from 25% in 1995~1998 to 48.3% in 1999~2000. Among reported cases, the number of boys was 31(50.8%), and 75.4% of subjects were from 2 months to 24 months old. 78.4% of adverse events occurred within one week after immunization. Conclusion : We can find that surveillance system of AEFI and quality of epidemiologic investigation has been somewhat improved. But, it seems that severe cases were more frequently reported than moderate or mild cases, and reporting rate was lower than that of other developed countries. We could not identify the detailed epidemiologic characteristics of AEFI due to these limitation of data. To achieve the stabilization of National Immunization Program, reporting rate and the quality of investigation should be improved.

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.49 no.2
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• pp.35-44
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• 2012

Most recent infrared (IR) sensors have a focal-plane array (FPA) structure. Spatial non-uniformity of a FPA structure, however, introduces unwanted fixed pattern noise (FPN) to images. This non-uniformity correction (NUC) of a FPA can be categorized into target-based and scene-based approaches. In a target-based approach, FPN can be separated by using a uniform target such as a black body. Since the detector response randomly drifts along the time axis, however, several scene-based algorithms on the basis of a video sequence have been proposed. Among those algorithms, the state-of-the-art one based on Kalman filter uses one-directional warping for motion compensation and only compensates for offset non-uniformity of IR camera detectors. The system model using one-directional warping cannot correct the boundary region where a new scene is being introduced in the next video frame. Furthermore, offset-only correction approaches may not completely remove the FPN in images if it is considerably affected by gain non-uniformity. Therefore, for FPN reduction in IR videos, we propose a joint correction algorithm of gain and offset based on bi-directional warping. Experiment results using simulated and real IR videos show that the proposed scheme can provide better performance compared with the state-of-the art in FPN reduction.

• Journal of Korea Fair Competition Federation
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• no.96
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• pp.2-7
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• 2003

실익이 없는 무리한 강제 조사권의 도입보다는 혐의가 드러난 담합의 경우 직접 검찰에 고발하거나 내부밀고자 보호 및 보상 강화를 통하여 절차적 정당성 및 정책 실효성을 동시에 확보할 필요가 있다. 각 국의 경쟁당국이 압수$\cdot$수색권을 행사하여 부당한 공동행위를 적발한 경우는 극히 일부분이기 때문이다. 그리고, 유사사례에 대해 향후 엄격하게 공정거래법을 집행함으로써 부당한 공동행위에 대한 사전적인 억제력을 제고해야 한다. 한편으로는 공정위의 시정조치가 있기 전에도 부당한 공동행위의 결과 피해를 본 사적 당사자가 법원에 직접 손해배상을 청구할 수 있도록 하고, 전문가들을 활용하여 담합으로 인한 손해발생 입증과 손해배상액을 추정하여 부당이득을 환수할 수 있어야 한다.

• KAPE Magazine
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• s.156
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• pp.4-5
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• 2009

농림수산식품부는 식품의 안전성 확보와 국내산 쇠고기에 대한 소비자 신뢰제고를 위하여 명백한 부상 등을 제외한 질환으로 인한 기립불능 손의 도축을 금지하고 그에 따른 손실을 보상하기 위해 '축산물가공처리법'을 개정(법률 제9665호)했다. 개정안에는 적용 대상 가축의 인정절차 및 방법 등 같은 법 시행령에서 위임되는 사항 새로이 정해졌고 그 밖에 현행제도의 운영상 나타난 일부 미비점을 개선 보완했다. 본 규칙은 2009년 11월 9일부터 시행된다.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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• 2007.05a
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• pp.152-156
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• 2007

We introduce the IP3102 which is developed by Interpion Semiconductor co. LTD. for the CFL ballaster. The IP3102 has thermal compensation function. In this paper, we present the temperature compensation design technique and its implementation in the IP3102. The experimental results is also presented in this paper.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2000.04a
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• pp.709-712
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• 2000

본 연구는 turbine compressor airfoil의 측정 및 검사 업무에서 edge(leading edge/trailing edge) 부위에서 자주 발생하는 프로브 slip현상으로 인한 측정 오차를 최소화하기 위하여 터빈 압축기의 airfoil 형상 규격에 대하여 살펴보고, 균일 샘플링방법을 이용하여 최소제곱법으로 보상하여 최적의 형상을 구하는 방법을 제시하고자 한다. 국내 기업에서는 airfoil형상의 edge부위를 검사할 때 leading edge부위의 타원 형상과 trailing edge부위의 원 형상을 AutoCAD상에서 임의로 그려서 규격을 검사하고 있다. 따라서 본 연구에서는 edge부위에서 발생하는 측정오차를 최소화하기 위하여 보다 정확하고 체계적인 fitting 방법을 도입함으로써, airfoil의 형상치수에 관한 규격검사 업무의 신뢰성과 효율을 향상시키고자 한다.

• Environmental and Resource Economics Review
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• v.5 no.2
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• pp.317-327
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• 1996

소비자예치금제를 도입하는 경우 적정예치금을 설정하기 위해서는 용기재활용에 따른 소비자 불편비용의 산출이 필요하다. 본 논문에서는 폐음료용기에 의한 외부효과를 내재화하는 정책적 수단의 하나인 소비자예치금제 동에서 소비자의 용기반환에 따른 불편비용을 추정하는 방법 및 실험적 분석결과를 제시하였다. 비시장재화의 가치평가에 널리 응용되고 있는 가상적 가치평가법(Contigent Valuation Method)을 이용하여 용기반환시 보상받고자 하는 수취의사액, 즉 불편비용에 상응하는 액수를 추정한 결과 용기반환장소 까지의 거리가 멀어짐에 따라 소비자의 불편비용은 증가하고 용기 하나당 평균 16원의 불편비용이 발생하는 것으로 나타났다.

• The Transactions of the Korean Institute of Electrical Engineers
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• v.43 no.6
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• pp.869-876
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• 1994

This paper presents an efficient method to calculate voltage collapse point and to avoid voltage instability. To evaluate voltage stability in power systems, it is necessary to get critical loading points. For this purpose, this paper uses linear programming to calculate efficiently voltage collapse point. Also, if index value becomes larger than given threshold value, voltage stability is improved by compensation of reactive power at selected bus. This algorithm is verified by simulation on the IEEE 14-bus sample system.

• Proceedings of the Korea Multimedia Society Conference
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• 2004.05a
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• pp.228-231
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• 2004

의학 분야에서 의료 영상 데이터에 해당하는 컴퓨터 단층 찰영(CT. Computer Tomography), 자기 공명 영상법 (MRI : Magnetic Resonance Imaging)둥의 데이터 등이 정확하고 신속한 진단ㆍ관리를 위하여 의료 영상 데이터 중에서 관심의 대상이 되는 영역은 무손실 압축 기법을 수행하고, 그외의 지역은 움직임 보상 방식을 사용하여 압축하는 방식을 제안하고 실험하였다. 그 결과 기존의 손실 압축 기법에 비하여 더 낮은 비트율로 효율적인 압축을 수행하였다.