• 한국경영과학회지
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• 제40권1호
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• pp.129-138
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• 2015

The problems associated with the excessive compensation of the public organizations in Korea have been presented not only by the press but also by the academic societies, including the management evaluation team of the public organizations, both in Korea and abroad. To analyze whether the compensation is excessive necessitates the empirical study on the present condition of the compensation system of the public organizations. Therefore, the purpose of this paper is to suggest the issues and the future directions of the compensation in the public organizations. The findings from the analysis of the data collected in this research include the expansion of the difference in compensation, the reinforcement of the job and performance-based compensation, the systematization of the model on the base compensation, and the differentiation of the compensation increase based on productivity.

• Transactions on Control, Automation and Systems Engineering
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• 제4권3호
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• pp.195-198
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• 2002

In this note, we suggest a new matching condition and extend the stability analysis to the ultimate boundness of state $\chi$(t) for uncertain input-delay systems, using a sliding control with delay compensation.

• 제어로봇시스템학회논문지
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• 제3권1호
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• pp.1-8
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• 1997

In order to reject the steady-state tracking error, it is common to introduce integral compensators in servosystems for constant reference signals. However, if the mathematical model of the plant is exact and no disturbance input exists, the integral compensation is not necessary. From this point of view, a two-degree-of-freedom(2DOF) servosystem has been proposed, in which the integral compensation is effective only when there is a modeling error or a disturbance input. The present paper considers robust stability of this 2DOF servosystem incorporating an observer to the structured and unstructured uncertainties of the controlled plant. A robust stability condition is obtained using Riccati inequality, which is written in a linear matrix inequality (LMI) and independent of the gain of the integral compensator. This result impies that if the plant uncertainty is in the allowable set defined by the LMI condition, a high-gain integral compensation can be carried preserving robust stability to accelerate the tracking response.

• 전기의세계
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• 제28권12호
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• pp.41-45
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• 1979

Improvement of power factor is achieved by reactive-current compensation, connecting power condenser to the circuit. This paper describes a method of reactive-current compensation, employing thyristor switching of capacitor banks without any breaker. This method reduces supply transients to the minimum by means of connecting condenser, because thyristor is triggered at zero point in condenser current. The reactive current detection and the experimental system to trigger thyristor at appropriate moment are given. IThe results show the fast reactive-current compensation on the condition of minimum transient.

• 한국심리학회지:법
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• 제11권2호
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• pp.135-153
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• 2020

인식 가능한 피해자 효과(Identifiable victim effect)는 추상적인 피해자보다 인식 가능한 피해자에게 더 큰 동정심과 도움행위가 나타나는 현상을 말한다. 본 연구에서는 이 현상을 일반인들의 직관적인 법적 판단 상황에 적용해 피해자에 대한 인식이 제3자의 처벌 및 보상 판단에 미치는 영향을 검증하고자 했다. 그리고 이런 법적 판단에 대한 인식 가능한 피해자 효과를 통해 피해자의 실명과 신상을 전면에 내세워 여론의 관심과 지지를 얻어 관련 범죄의 처벌 강화를 목표로 하는 피해자형 설명법안의 효과를 설명하고자 하였다. 이를 위해 법적 판단에 필요한 법률적 요인을 배제한 교통사고 시나리오를 작성해 교통사고 피해자의 정보를 조작해 실험을 진행하였다. 실험1에서 참가자는 각 집단 별로 사고 피해자를 익명으로 제시한 조건(비인식 조건)과 이름, 나이 등의 신상정보를 함께 제시한 조건(인식 조건)을 읽고 배심원으로서 양형과 합의금을 판단하였다. 그 결과 피해자 신상정보의 유무는 제3자의 양형 및 합의금 판단에 영향을 미치지 않았지만, 세상의 공정성에 대한 믿음에 의한 조절효과가 나타났다. 즉, 피해자를 구체적으로 인식했을 때 세상이 공정하다고 믿을수록 더 높은 처벌과 보상을 원하는 것으로 나타났다. 실험2에서는 익명의 피해자(비인식 조건)와 성행 정보가 긍정적(긍정인식 조건)이거나 부정적인 피해자(부정인식 조건)를 비교해 피해자 특성이 가해자 처벌과 피해자 보상에 미치는 영향을 관찰하였다. 그 결과 피해자를 부정적인 사람이라고 인식했을 때 피해자가 누군지 알 수 없을 때보다 더 적은 보상 판단을 하는 것으로 나타났다. 또 부정적인 피해자 조건을 제외한 모든 조건에서 이전 판례의 평균보다 더 높은 가해자 처벌, 피해자 보상 판단을 하는 것으로 나타났다. 본 연구는 법률적 요인 외의 피해자 특성이 제3자의 법적 판단에 영향을 미친다는 것을 확인하였다. 나아가 법적 요인과는 무관하게 높은 처벌과 보상 판단을 피해자형 실명법안의 효과와 함께 해석하며 공정한 양형 기준 설정을 위한 사회적, 법적 논의와 후속 연구를 제안하였다.

• 한국소음진동공학회논문집
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• 제22권5호
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• pp.413-421
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• 2012

In industry, various rotating machinery such as pumps, gas turbines, compressors, electric motors, generators are being used as an important facility. Due to the industrial development, they make high performance(high-speed, high-pressure). As a result, we need more intelligent and reliable machine condition diagnosis techniques. Diagnosis technique using hidden Markov-model is proposed for an accurate and predictable condition diagnosis of various rotating machines and also has overcame the speed limitation of time/frequency method by using compensation of the rotational speed of rotor. In addition, existing artificial intelligence method needs defect state data for fault detection. hidden Markov model can overcome this limitation by using normal state data alone to detect fault of rotational machinery. Vibration analysis of step-up gearbox for wind turbine was applied to the study to ensure the robustness of diagnostic performance about compensation of the rotational speed. To assure the performance of normal state alone method, hidden Markov model was applied to experimental torque measuring gearbox in this study.

• 전자공학회논문지D
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• 제35D권8호
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• pp.1-7
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• 1998

This paper reports a dispersion compensation technique to implement tje distortionless transmission line by satisfying the heaviside conditon. Because of the skin depth for aconductor, compensation condition is dependent on the freuqncy variation. For this reason, first, the resistance have been chaacterized in awide range of frequencies, and then found the effective conductivity of the substrate which satisfied the heaviside condition. The phase velocity and the characteristics impedance are prresented nearly constant over a wideband frequency range.

• 한국정밀공학회지
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• 제9권1호
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• pp.126-136
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• 1992

In this paper, a simple structured feedback compensation scheme for a electro-hydraulic servo system to keep the response characteristics unchanged regardless of the load variation is proposed. In electro-hydraulic servo system, servovalve is most important control element. But the relation between input corrent and output flowrate of the servovalve has properties as follows; firstly, in spite of constant input current, output flowrate decreases as load pressure increases, secondly, according to frequency response of typical servovalve, the characteristics of gain and phase shift is something like 2'nd order system. Load pressure feedback compensation method has been applied to eliminate the first influence, the second influence has been improved by phase lead compensation method. As a result of above compensation methods, regardless of variation load condition, spring and inertia load, the compensation scheme has been verified to be effective within the range of frequency less than 25Hz by static response and dynamic response in time domain and frequency domain through experiments.

• 센서학회지
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• 제21권3호
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• pp.235-239
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• 2012

This paper presents frequency response compensation technique, and a self-oscillation circuit for capacitive microresonator with the compensation technique using programmable capacitor array, to compensate for the frequency response distorted by parasitic capacitances, and to obtain stable oscillation condition. The parasitic capacitances between the actuation input port and capacitive output port distort the frequency response of the microresonator. The distorted non-ideal frequency response can be compensated using two programmable capacitor arrays, which are connected between anti-phased actuation input port and capacitive output port. The simulation model includes the whole microresonator system, which consists of mechanical structure, transimpedance amplifier with automatic gain control, actuation driver and compensation circuit. The compensation operation and oscillation output of the system is verified with the simulation results.

• 제어로봇시스템학회논문지
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• 제8권12호
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• pp.1031-1035
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• 2002

The development of the solar and the wind power energy is necessary since the future alternative energies should have no pollution and no limitation. currently power generation system of MW scale has been developed, but it still has a few faults that its operation depends on with the weather condition. In order to solve these existing problems. combined generation system of photovoltaic(400W) and wind power generation system(400W) was suggested. It combines wind power and solar energy to have the supporting effect from each other. However. since the combined generation system cannot always generate stable output with ever-changing weather condition, power compensation device that uses elastic energy of spiral spring was added. In an experiment. when output of system gets lower than 12V(charging voltage), additional power was from the stored rotational energy of spiral spring.