• 한국정밀공학회지
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• 제26권11호
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• pp.47-54
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• 2009

Spin coaters are the essential instruments in micro-fabrication processes, which apply uniform thin films to flat substrates. In this research, a spin coater diagnosis system is developed to detect the abnormal operation of TFT-LCD process in real time. To facilitate the real-time data acquisition and analysis, the circular-buffered continuous data transfer and the short-time Fourier transform are applied to the fault diagnosis system. To determine whether the system condition is normal or not, a steady-state detection algorithm and a frequency spectrum comparison algorithm using confidence interval are newly devised. Since abnormal condition of a spin coater is rarely encountered, algorithm is tested on a CD-ROM drive and the developed program is verified by a function generator. Actual threshold values for the fault detection are tuned in a spin coater in process.

• 한국해양공학회:학술대회논문집
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• 한국해양공학회 2006년 창립20주년기념 정기학술대회 및 국제워크샵
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• pp.46-53
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• 2006

This paper presents the fault diagnosis of induction motor based on support vector machine (SVMs). SVMs are well known as intelligent classifier with strong generalization ability. Application SVMs using kernel function is widely used for multi-class classification procedure. In this paper, the algorithm of SVMs will be combined with feature extraction and reduction using component analysis such as independent component analysis, principal component analysis and their kernel (KICA and KPCA). According to the result, component analysis is very useful to extract the useful features and to reduce the dimensionality of features so that the classification procedure in SVM can perform well. Moreover, this method is used to induction motor for faults detection based on vibration and current signals. The results show that this method can well classify and separate each condition of faults in induction motor based on experimental work.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2000년도 제15차 학술회의논문집
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• pp.544-544
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• 2000

From ancient times. the diagnosis method of the oriental medicine has been Performed by curing diseases by means of rectifying and adjusting the unbalance in the Physiological function of the five viscera and the six bowels of a human body. Diseases have been diagnosed by the condition of blood circulation that cycles a human body through blood vessels by dint of the vitality of the heart, Based on such a systematic pulse diagnosis method, the article presents parameters that will be beneficial to clinical application on the basis of its analysis of the filtering for eliminating noises from pulse signals inputted from sensor group the digital hardware dealing with signals necessary for recognition algorithm. and the structure of diagnosis algorithm and components of pulse waveform.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2014년도 추계학술대회 논문집
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• pp.330-331
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• 2014

A mathematical model is suggested for diagnosis on a reciprocating pump. To the end, kinematic, thermodynamic and fluidic analyses are carried out for a simplified reciprocating pump model. The pressure inside the cylinder is expressed as a function of the rotation angle of a crank axle. The mathematical model consists of one cylinder with suction and discharge valves and an accumulator. The effect of valve leakage on the discharge angle is investigated. The discharge angle difference between normal state and leakage state increases with the leakage extent.

• 동의생리병리학회지
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• 제18권1호
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• pp.22-27
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• 2004

Seop-Gye divided up the constitution's strength and weakness, and so he cured disease by the 'cold and heat'. 'deficiency and excessiveness' means on the basis of the YINㆍYANG of constitution. He classified constitution with pathogenesis grounding in body formal distinction, flesh hardness and softness, face color and form, skin color. Therefore he grasped the rule of constitution connected with physiological function and pathological distinction, applied the rule of constitution in the diagnosis and cure of the chronic & epidemic febrile disease.

• 대한임상검사과학회지
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• 제36권1호
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• pp.64-68
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• 2004

뇌 기능의 비가역적 중단을 뇌사라 정의한다. 뇌사를 진단하기 위해 선행되어야 할 조건은 종양, 뇌졸중, 사고 등에 의한 뇌 기능의 소실된 원인이 확실하여야 하고, 자발호흡의 비가역적 중단과 약물이나 급성 대사성 장애가 없어야 하고, 저 체온 상태가 아니어야 하며, 심장 쇼크 상태가 아니어야 한다. 뇌간 반사 작용이 없어야 한다. 뇌사를 진단하기 위한 검사로는 뇌파검사와 유발전위 검사에서 뇌로부터 나오는 파형이 없어야 하고, 뇌혈류와 angiography에서 혈류의 흐름이 없어야 한다. 이 논문은 뇌사를 진단하는 신경과 의사와 뇌신경 검사를 시행하는 임상병리사에게 도움이 될 것이다.

• 한국식품영양학회지
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• 제11권2호
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• pp.171-178
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• 1998

K14 환자는 유방암 수술, 방사선 치료, 피부이식 수술, 무릎 관절통의 기왕력이 있는 고령의 여성 호흡 곤란증 환자로서 문진과 진찰, 혈압, 비만도 측정, 임상병리, 흉부 X-선, 심전도와 심초음파, 폐기능 검사 등 체계적인 심폐기 질환의 진단 결과 비난증과 고혈압, 좌심실 비대, 만성 폐질환의 소견이 있어 심폐기능 모두에서 문제성이 발견되었다. 검사 결과들의 정밀한 판독법 및 장기-치료 관찰 결과를 임상문헌과 함께 고찰하였다.

• The Journal of Korean Physical Therapy
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• 제16권3호
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• pp.65-71
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• 2004

The function of a diagnosis is to provide information that can guide treatment. The physicians provides only a limited amount of information that is pertinent to the physical therapy management of the patient. In only a very general way does the diagnosis direct the physical therapy's treatment. Thus, by the members of the physical therapy profession recognizing their role and responsibility to become diagnosticians, they can begin to classify signs and symptoms more actively and develop the categories that will enhance the effectiveness of their practice and their contributions to health care.

• 시스템엔지니어링학술지
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• 제1권2호
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• pp.34-42
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• 2005

Logistic Support Analysis(LSA) and Logistic Supportability Review must be carried out as soon as possible in development stage in order to minimize operation/maintenance cost that head the list of weapon cost and improve logistic supportability of the weapon system. And the result must be used for hardware designs to set up to be able to input to the system design and logistic support elements. Therefore Logistic Support Elements must be planed/developed/supplied with the main combat system concurrently and performance and logistic supportability of the comabat system had better be improved mutually. This report describes maintenance concept changes of weapon systems, fault diagnosis function and test equipment state on the domestic MBT(main battle tank). And then it presents application and intensification of itself fault diagnosis system for a domestic future MBT considering connection with IETM(Interactive Electronic Technical Manual) and TE(Test Equipment).

• 대한전기학회논문지:전기물성ㆍ응용부문C
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• 제54권8호
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• pp.361-364
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• 2005

In this paper, surface temperatures of ZnO arresters as a function of ambient temperatures and leakage currents were experimentally investigated. The variations of the leakage current was below 10 uA, which comes about $4.5\%$ of the normal leakage current. Temperature differences between the ambient and the surface of arresters were not shown until $150\%$ to the normal leakage current, and were remarkable over $200\%$. From the results, we deduced a couple of polynomials which enables the calculation of the leakage current by the measurement of surface temperature. Tests on used arresters have shown the same results as the experimental one. Also, we expect that an arrester diagnosis is possible by measuring the surface temperature of them after more studies on the effect of wind, moisture penetration, and arrester types.