• Journal of Internet Computing and Services
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• v.2 no.1
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• pp.23-30
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• 2001

ILP processors require an accurate branch prediction scheme to achieve higher performance. Two-Level branch predictor has been known to achieve high prediction accuracy. But, when a branch accesses a PHT entry that was, previously updated by other branch, Two-level predictor may cause interferences. Negative interferences among all interferences have a negative effect on performance, since they can cause branch mispredictions. Agree predictor achieve high prediction accuracy by converting negative interferences to positive interferences by adding bias bits to BTB, but negative interferences may occur when bias bit is set incorrectly. This paper presents a new dynamic branch predictor which reduces negative interferences. In the proposed predictor, we attach hit bits to entries in BTB to change bias bit dynamically during the execution time, h a result the proposed scheme improve the accuracy of prediction by reducing negative Interferences effectively, To illustrate the effect of the proposed scheme, we evaluate the performance of this scheme using SPEC92int benchmarks, The results show that the proposed scheme can outperform traditional branch predictors.

• Korean Medical Education Review
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• v.8 no.1
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• pp.1-11
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• 2006

의사는 인간의 생명을 구하는 권한이 있으니까 마치 생명을 죽이는 권한도 포함된 것 같은 생각에 그야말로 막강한 권한을 가진 것 같이 보인다. 오늘의 한국에서는 과거와 달리 의사의 사회적 위상에 많이 떨어져 있지만 아직도 미국이나 독일 같은 선진 사회에서 의사의 위상은 준신에 가깝게 높고 그의 말과 판단이라면 비록 건강에 관한 이슈뿐만 아니라 삶에 대한 지혜로도 존중되고 수용된다. 의사의 사회적 위상이 높아진 것은 의학이라는 특수한 학문과 이와 연결된 의술의 그동안의 엄청난 발달과 무관하지 않다. 역사적으로 보면 고대 희랍시대부터 의학은 인간의 질병을 고치고 생명을 건강하게 보존하는 특별한 지식 그리고 이 지식을 기반으로 응용되는 치료기법으로 기예 (techne)라는 존칭으로 불리었다. 즉, 건강의 회복이라는 실질적인 목적을 가진 지식과 테크닉을 합친 이른바 귀중한 실천 (praxis)이다. 의학에 대한 낙관적인 전망은 시대와 문화가 바뀌면서 또한 의학 자체가 좀 더 발달하면서 도전을 받는다. 20세기에 들어서서 인간의 생명을 위협하고 또 고통을 주는 질병의 종류와 양상이 변하고, 의 과학이 앞으로 인류의 병들을 퇴치시킬 수 있다는 기대에 차질이 생기게 되었다. 미국 같은 선진국에서는 일찍이 1960년도 말부터 의학교과목 개혁의 일환으로 인문학의 과목들을 같이 가르치기 시작했다. 대표적인 과목들이 윤리학, 철학, 역사, 문학 등이다. 인문학의 보강은 의학과 기술과 인간성의 연결을 위해 의사들이 쓸 수 있는 인지적 도구 (cognitive tools)를 갖추게 하는 목적에서이다. 인문학의 도입으로 의사들이 인간의 삶을 좀 더 깊게 이해하고 풍부한 인간성으로 지식과 기술을 환자에게 적용할 수 있기 위해 각자의 마음과 머리 속에 포용통합능력을 발달시키자는 데 있다. 즉 의사들의 의식과 자유로운 상상력이 확장되면서 새로운 정체성을 갖게 되는 것을 바라는 것이다. 선진국의 의학교육에서 이 같은 교육이 좋은 의사를 만든다는 신념을 굳혀가고 있다. 성과를 증명하는 연구결과가 없어 아직도 회의적인 반응도 있으나 이와 같은 교육이 윤리적 상황에 대한 예민도를 높이는 것은 확실하다. 연세대학교 의과대학은 기독교 이념이 기본 교육철학이다. 인간성을 강조하고 의사들이 자신의 인간성을 개발 강화하는 교육이 하나님의 사랑을 의사 지신의 인간성과 그의 인간애로 내재화 시킬 수 있다면 그리스도의 정신을 의학과 의술에 연결시키는 고귀한 목적을 이룰 수 있는 길이라고 생각한다.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.27 no.4A
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• pp.330-335
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• 2002

In the direct sequence code division multiple access system, the problem of multiple access interference due to multiple access is generated. A interference cancelling receiver is used to solve this problem. The conventional interference cancelling receiver is structure of successive interference canceller using antenna array. In this structure, the difference of between method I and method II depends on updating weight vector. In this paper, the adaptive blind CMA array interference cancelling receiver using cost function of constant modulus algorithms is proposed to update weight vector at conventional structure. The simulation compared the proposed interference cancelling receiver with two conventional interference cancelling receivers by signal to interference ratio and bit error rate curve under additive white Gaussian noise environment. The simulation results show that the proposed receiver has about the gain of SIR of 1.5[dB] more than method I which is conventional receiver at SIR curve, and about the gain of SIR of 0.5(dB) more than method II. In BER curve, the proposed IC receiver about the gain of SNR of 2[dB] more than method I and about the gain of SNR of 0.5[dB] more than method If, Thus, the proposed interference cancelling receiver has the higher performance than conventional interference cancelling receivers.

• Korean Business Review
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• v.11
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• pp.1-14
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• 1998

In this paper the negotiation skills, which have been so far known as non-scientific or artistic field, are analyzed on the basis of behavioral science view point. Negotiator's behavior and psychological situation are believed to influence the negotiation result significantly, therefore, those factors are reviewed with behavioral science framework. Some concepts developed in Cognitive Psychology to explain the decision making models - prominence, commitment, escalation of commitment, framing, adjustment and anchoring, endowment effect - are reconceptualized and applied to the negotiation skill analysis and negotiation skill development in this paper. As the results of this research, various negotiation skills which have been so far believed as irrational and artistic are now able to be explained on the basis of sound logic and reasoning. This means also that valuable and elegant negotiation skills should be further developed by behavioral scientists.

• The KIPS Transactions:PartA
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• v.14A no.1 s.105
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• pp.31-38
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• 2007

Code Optimization is converting to a code that is equivalent to given program but more efficient, and this process is processed in Code Optimizer. This paper designed and processed Code Optimizer Generator that automatically generates Code Optimizer. In other words Code Optimizer is automatically generated for DFA Pattern Matching which finds the optimal code for the incoming pattern description. DFA Pattern Matching removes redundancy comparisons that occur when patterns are sought for through normalization process and improves simplification and structure of pattern shapes for low cost. Automatic generation of Code Optimization for DFA Pattern Matching eliminates extra effort to generate Code Optimizer every time the code undergoes various transformations, and enables formalism of Code Optimization. Also, the advantage of making DFA for optimization is that it is faster and saves cost of Code Optimizer Generator.

• KOMUNHWA
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• no.64
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• pp.47-74
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• 2004

The aim of this research is to investigate various aspects and its meanings of Daegu Yangnyongshi Hanbang(韓方: traditional herb medicines) culture being handed down 350 years ago for understanding korean folk medicine. Yangnyongshi(藥令市: Medicinal Herb Mark

• The Transactions of the Korea Information Processing Society
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• v.6 no.10
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• pp.2563-2573
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• 1999

In most mail automatic processing centers, after facing and canceling, letter mails are passed through an Optical Character Recognition/Barcode Sorter(OCR/BS) to read the postal code and 3 of 5 fluorescent (luminescent) barcode is applied. Normally, 31%∼35% of this mails are rejected. The main reasons for reading failures are poor printing quality of addresses and barcodes, script printing, writing in a cursive hand, variety fonts, and failure to locate the address. Our goal is to provide mailer with top quality service and customer barcode service as we move toward 100% barcoding automation of letter mail. In this paper, we propose a method of printing 3 of 5 customer barcode, postal code management, and detection of postal code based on postal address for increase the performance of automatic processing system in mail items. Using postal code generating rules, which are automatically extracted from postal addresses and address numbers, creates postal codes. The customer barcode support system is implemented by C++ language and runs on IBM PC under Windows 95.

• Proceedings of the KIEE Conference
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• 2009.04b
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• pp.29-31
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• 2009

Optimal efficiency control of synchronous reluctance motor(SynRM) is very important in the sense of energy saving and conservation of natural environment because the efficiency of the SynRM is generally lower than that of other types of AC motors. This paper is proposed an efficiency optimization control for the SynRM which minimizes the copper and iron losses. The design of the speed controller based on fuzzy-neural networks (FN)-PI controller that is implemented using fuzzy control and neural networks. There exists a variety of combinations of d and q-axis current which provide a specific motor torque. The objective of the efficiency optimization control is to seek a combination of d and q-axis current components, which provides minimum losses at a certain operating point in steady state. It is shown that the current components which directly govern the torque production have been very well regulated by the efficiency optimization control scheme. The proposed algorithm allows the electromagnetic losses In variable speed and torque drives to be reduced while keeping good torque control dynamics. The control performance of the proposed controller is evaluated by analysis for various operating conditions. Analysis results are presented to show the validity of the proposed algorithm.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.15 no.3
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• pp.57-66
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• 2001

This paper resents a control approach for designing a fuzzy-PI controller for a synchronous generator excitation and SVC system A combination of thyristor-controlled reactors and fixed capacitors (TCR-FC) type SVC is recognized as having the must fiexible control and high speed response, which has been widely utilized in power systems, is considered and designed to improve the response of a synchronous generator, as well as controlling the system voltage A Fuzzy-PI controller for SVC system was proposed in this paper. The PI gain parameters of the proposed Fuzzy-PI controller which is a special type of PI ones are self-tuned by fuzzy inference technique. It is natural that the fuzzy inference technique should be barred on humans intuitions and empirical knowledge. Nonetheless, the conventional ones were not so. Therefore, In this paper, the fuzzy inference technique of PI gains using MMGM(Min Max Gravity Method) which is very similar to humans inference procedures, was presented and allied to the SVC system. The system dynamic responses are examined after applying all small disturbance condition.

• Composites Research
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• v.31 no.6
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• pp.371-378
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• 2018

In this study, the thermoelastic properties of poly lactic acid (PLA) based nanocomposites are predicted by molecular dynamics (MD) simulation and a micromechanics model. The stereocomplex mixed with L-lactic acid (PLLA) and D-lactic acid (PDLA) is modeled as matrix phase and a single walled carbon nanotube is embedded as reinforcement. The glass transition temperature, elastic moduli and thermal expansion coefficients of pure matrix and nanocomposites unit cells are predicted though ensemble simulations according to the hydrolysis. In micromechanics model, the double inclusion (D-I) model with a perfect interface condition is adopted to predict the properties of nanocomposites at the same composition. It is found that the stereocomplex nanocomposites show prominent improvement in thermal stability and interfacial adsorption regardless of the hydrolysis. Moreover, it is confirmed from the comparison of MD simulation results with those from the D-I model that the interface between CNT and the stereocomplex matrix is slightly weak in nature.