• 시큐리티연구
• /
• 제5호
• /
• pp.109-130
• /
• 2002

As proceeding Munmin and Kukmin's government, it is to bring in regionalism of genernal public administration and police administration, specialization, efficiency issue, demand inventing of audit technique to meet this trends. Especially, according to supporting qualitative improvement of the audit, its environment faced that orienting performance audit emphasis on not the legality but the efficiency more systematic and scientific theory or technique. In order to attain police audit's efficiency through performance audit, this study discussed that scientific management techniques should be applied police audit. Accordingly, the primary purpose of this study is to apply public audit to scientific management technique, bring to light limits in public sector(especially, police sector). To be efficiency audit(namely, performance audit), 1) OR techniques are explained linear programming, network modeling, PERT/CPM, queuing matrix model, simulation, 2) Statistical analysis methods are argued delphi technique, data envelopment analysis(DEA), analytic hierarchical process(AHP), time series analysis models etc.

• Tribology and Lubricants
• /
• 제15권1호
• /
• pp.24-28
• /
• 1999

This paper describes a new pivoting technique to improve bearing performance in pivoted pad thrust bearings. This new technique adjusts the pivot line in a line pivoted pad thrust bearing to be parallel to the trailing edge of a sector shaped pad. Bearing performance factors such as load carrying capacity, frictional torque and flow rate are numerically investigated for conventional point-pivoted and line-pivoted pads and for the new parallel-line pivoting technique. It is shown that the load carving capacity can be maximized with the new technique.

• 품질경영학회지
• /
• 제50권4호
• /
• pp.665-677
• /
• 2022

Purpose: The purpose of this study is to analyze the current status and investigate relevant indicators so that R&D performance evaluation suitable for government-funded research institutes can proceed. A suitable performance evaluation model was presented based on the surveyed indicators. Based on the presented performance evaluation model, the importance was analyzed to calculate the weight for each indicator of the performance evaluation model. Methods: The method applied in this study presented a performance evaluation model based on the organizational performance evaluation cases of advanced overseas countries. By using the AHP(Analytic Hierarchy Process) technique, the weight of each indicator of the performance evaluation model was studied. Results: As a result of examining the indicators necessary for the evaluation model, focusing on overseas cases, 13 evaluation items were derived. A weight was calculated for the importance of the study results. And the scientific/technical research results showed the highest excellence. Conclusion: Key indicators of performance evaluation suitable for government-funded research institutes were derived and presented through detailed modeling in three stages. A realistic model that can objectively evaluate the performance of government-funded research institutes was proposed using the AHP technique.

• 전자공학회논문지B
• /
• 제30B권7호
• /
• pp.70-82
• /
• 1993

In this paper, employing the 3-dimensional discrete cosine transform (DCT) for the utilization of the temporal correlation, an adaptive motion sequence coding technique is proposed. The energy distribution in a 3-D DCT block, due to the nonstationary nature of the image data, varies along the veritical, horizontal and temporal directions. Thus, aiming an adaptive system to local variations, adaptive procedures, such as the 3-D classification, the classified linear scanning technique and the VLC table selection scheme, have been implemented in our approach. Also, a hybrid structure which adaptively combines inter-frame coding is presented, and it is found that the adaptive hybrid frame coding technique shows a significant performance gain for a moving sequence which contains a relatively small moving area. Through an intensive computer simulation, it is demonstrated that, the performance of the proposed 3-D transform coding technique shows a close relation with the temporal variation of the sequence to be code. And the proposed technique has the advantages of skipping the computationally complex motion compensation procedure and improving the performance over the 2-D motion compensated transform coding technique for rates in the range of 0.5 ~ 1.0 bpp.

• 한국콘크리트학회:학술대회논문집
• /
• 한국콘크리트학회 2010년도 춘계 학술대회 제22권1호
• /
• pp.479-480
• /
• 2010

콘크리트 구조물의 고성능, 고내구성화를 위해 콘크리트 뿐만 아니라 보강 재료에 대한 성능 향상이 요구되고 있다. 본 연구에서는 고성능의 보강재료를 복합적으로 적용하여 고강도 콘크리트 구조물의 성능 극대화를 도모하는 하이브리드 보강기법에 대한 연구를 수행하였다.

• 한국통신학회논문지
• /
• 제21권7호
• /
• pp.1820-1832
• /
• 1996

본 논문에서는 디지탈 이동채널환경에서 적용이 가능한 두가지 형태의 파일롯 톤을 이용한 반송파 동기방식을 제시하고 이에 대한 성능을 비교 분석하였다. 이동채널환경에서는 다중경로에 의한 페이딩으로 인하여 수신신호의 진폭 요동과 불규칙한 위상변화로 반송파동기 및 수신기의 성능이 급격히 열화된다. 이러한 페이딩채널에 적용가능한 반송파동기방식으로 TCT(Tone Calibration Technique)와 DTCT(Dual Tone Calibration Technique)를 제시하고 Rayleigy 와 Rician 페이딩하에서 성능을 분석하였다. 또한 파일롯 대 신호전력비와 신호대 파일롯필터 대역비와 같은 주요한 설계파라메타에 대하여 BER 성능을 구함으로써 두가지 방식에 대한 심도있는 고찰과 시스템 최적화를 수행하였다.

• 한국정보과학회논문지:컴퓨팅의 실제 및 레터
• /
• 제8권4호
• /
• pp.389-398
• /
• 2002

XML이 인터넷의 표준언어로 자리잡고 있음에 따라 XML을 중심으로 한 많은 데이타 관리기술이 개발되고 있다. 특히 XML 문서를 저장하는 방식에 대한 연구가 활발히 진행되고 있는데, 이러한 기존 저장 기법들에 대해 동일한 기준으로 성능을 평가하여 효율적인 저장 기법을 제안하는 것이 필요하다. 본 논문에서는 객체-관계형 데이타베이스 모델을 이용해 XML 문서를 효율적으로 저장할 수 있는 새로운 저장 기법을 제안한다. 그리고 저장 기법들에 대한 성능 평가를 통해, 제안된 저장 기법을 효과적인 저장 기법으로 제시한다. 본 논문의 의의는 기존의 데이타 관리 모델을 사용하여 XML 문서를 보다 쉽게 효율적으로 저장할 수 있는 저장 기법을 제안하였으며, 동일한 기준을 사용한 성능 평가를 통해 XML 문서의 저장 기법들에 대한 성능을 평가하였다는 점이다.

• Architectural research
• /
• 제11권2호
• /
• pp.19-26
• /
• 2009

The effect of rebirthing technique on the genetic algorithm (GA)-based size optimization is investigated. The GA mimics the principles of nature and it can gradually improve structural design through biological operations such as fitness, selection, crossover and mutation. However, premature optimum has been often detected in the generic GA with continuous design variable. Since then, the so-called rebirthing technique has been proposed to avoid this problem. However, the performance of the rebirthing technique has not been reported. Therefore, the size optimizations of spatial structures are tackled to investigate the performance of the rebirthing technique on the generic GA. From numerical results, it is well proved that the rebirthing technique is very effective to produce the optimum values regardless of the values of parameters used in the GA operations.

• 전자공학회논문지S
• /
• 제35S권7호
• /
• pp.62-71
• /
• 1998

In this paper, we describe the object-oriented motioncompensation technique using the hierarchical grid interpolation(HGI). By noting that the HGI does not exploit effetively the rate-distortion (R-D) trade-off inherent in the quadtree decomposition, we propose an objectoriented HGI technique employing the greedy method. In the proposed technique, input image is decomposed in a quadtree basis using the greedy method, yielding maximum split gain in the R-D sense. Then, the motion compensation is performed using the HGI technique. The performance of the proposed technique is examined in simulation, and it will be show that the proposed technique provides better performance than the conventional object-oriented motion compensation techniques.

• 대한임베디드공학회논문지
• /
• 제17권6호
• /
• pp.329-335
• /
• 2022

In this paper, we study the effect of noise on video inpainting, a technique that fills missing regions of video. Since the video may contain noise, the quality of the video may be affected when applying the video inpainting technique. Therefore, in this paper, we compare the inpainting performance in video with and without denoising techniqueDAVIS dataset. For that, we conducted two experiments: 1) applying inpainting technique after denoising the noisy video and 2) applying the inpainting technique to the video and denoising the video. Through the experiment, we observe the effect of denoising technique on the quality of video inpainting and conclude that video inpainting after denoising would improve the quality of the video subjectively and objectively.