• 대한의생명과학회지
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• 제19권4호
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• pp.330-337
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• 2013

There are several methods currently being used to diagnose tuberculosis in patients, such as smear, PCR, tuberculosis culture and X-ray. For a proper medical treatment, antimicrobial susceptibility test and rapid drug susceptibility testing have been operated. Tuberculosis bacilli usually need 3~8 weeks of culture period because of delay in RNA synthesis and require 15~22 hours for generation. After a germ raises in culture, we initiated antimicrobial susceptibility test for a proper treatment. It has some difficulties to give a proper prescription for a tuberculosis patient because antimicrobial susceptibility test requires 4 weeks. To supplement this, we are practicing drug susceptibility testing which allow us to know the sensibility of RMP and INH after 2 or 3 days. But this is only possible when more than 2 positive germ. Therefore, we should practice rapid drug susceptibility testing with culture test. But if media is contaminated by other germs except Mycobacterium tuberculosis, it's hard to interpret result about culture test and to practice antimicrobial susceptibility test and rapid drug susceptibility testing. Because we have to practice again smear, culture test after extracting specimen from the patient, time is consumed and proper patient treatment is postponed. To address these problems and quick patient treatment, rapid drug susceptibility testing is practiced by using GenoType$^{(R)}$ MTDRplus method. As a result of this method we detected sensibility 10 and 7 cases and resistance 0 and 3 cases using RIM and INH respectively with other 1 case toward medicals out of the total 11 test. In conclusion rapid drug susceptibility testing can be used from the contaminated specimen after elimination of contaminated source from culture and proved that it can be practiced for rapid examination of a tuberculosis patient.

• 대한감각통합치료학회지
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• 제7권2호
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• pp.13-22
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• 2009

목적: 본 연구는 그룹 감각통합치료가 학령전기 발달지연 아동의 감각운동 및 행동 변화에 미치는 효과에 대하여 알아보았다. 연구방법: 연구대상은 만 3~5세의 발달지연 아동 5명이었고, 실험기간은 2009년 6월에서 11월까지이었다. 그룹 감각통합치료는 주 1회(매 70분), 총 26회기를 실시하였다. 그룹 감각통합치료의 효과를 알아보기 위해 단일집단 사전-사후 설계(one group pretest-posttest design)를 사용하였다. 그룹감각통합치료 사전/사후의 임상관찰, Behavior during testing의 차이는 윌콕슨 순위검정(Wilcoxon matched-pairs signed ranks test)을 사용하여 분석하였다. 결과: 그룹 감각통합치료 전과후의 임상관찰(Z=-2.023, p=.043) 점수는 소폭 상승하였으나 통계적으로 유의하지 않았다. 행동 변화를 보기 위한 하위 카테고리인 사회성(Z=-2.121, p=.034), 주의집중(Z=-2.032, p=.042)과총B점ehavior during testing (Z=-2.032, p=.042)에서 통계적으로 유의한 차이를 보였다. 결론: 본 연구는 그룹 감각통합치료가 감각운동 발달에 긍정적인 영향을 미치나 확실한 근거를 제시하기 에는 미흡하며, 사회성 및 주의집중과같은 행동 변화에는 효과가 있음을 제시하였다. 이는 개별적인 감각통합치료에 대한 연구는 많으나 그룹 감각통합치료의 효과에 대한 연구는 거의 없는 실정이므로 그룹치료에 대한 근거를 제시하였다는 것에 의의가 있다. 그러나 연구대상자의 수가 적고, 다양한 내적 환경적 요소에 의해 영향을 받을 수 있으므로 연구결과를 일반화하기에는 어려움이 있다. 따라서 향후 연구에서는 대상 아동의 수를 고려하고, 외적변인을 제한하며, 보다 객관적인 자료 수집 방법을 사용해야 할 것으로 사료된다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2009년도 제40회 하계학술대회
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• pp.1515_1516
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• 2009

A 440MHz wireless and passive surface acoustic wave (SAW) based micro-sensor was developed for simultaneous measurement of temperature and humidity. The developed sensor is composed of a SAW reflective delay lines structured by an IDT (Inter-Digital Transducer), four reflectors and humidity sensitive film (polyimide). Polyimide was dry-ecthed by RIE (Reactive Ion Etching) to obtain high roughness, which gives the large reaction area resulting in high sensitivity. In wireless testing using a network analyzer, sharp reflection peaks with high S/N ratio, small signal attenuation, and few spurious peaks were observed in the time domain. High sensitivity towards the temperature and humidiy were also observed in the large concentration range. The obtained sensitivity was $16.8^{\circ}/^{\circ}C$ for temperature sensor and $15.8^{\circ}$/%RH for humidity sensor.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 춘계학술대회 논문집
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• pp.675-679
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• 2007

The control method of programmable dynamometer for overall test of machine is to load reference torque which is computed from torque transducer into motor under test. But the torque information detected from torque transducer have a lot of noise when the load torque of moter is a small quantity or changing. Thus, torque transducer must have a low pass filter to detect a definite torque information. But The torque delay generated by filter with torque transducer occur a torque trouble for moter torque of programmable dynamometer. Therefore, this kind of system could not perform dynamic and nonlinear load. In this paper, the control method using the load torque observer without a measure for torque transducer is proposed. The proposed system improved the problem of the torque measuring delay with torque transducer, and the load torque is estimated by the minimal order state observer based on the torque component of the vector control induction moter. Therefore, the torque controller is not affected by a load torque disturbance.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2003년도 춘계학술대회 논문집
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• pp.427-432
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• 2003

The control method of programmable dynamometer for overall test of machine is to load the reference torque which is computed from torque transducer into motor under test. But the torque information detected from torque transducer have a lot of noise when the load torque of moter is a small quantity or changing. Thus, torque transducer must have a low pass filter to detect a definite torque information. But The torque delay generated by filter with torque transducer occur a torque trouble for meter torque of programmable dynamometer. The proposed system improved the problem of the torque measuring delay with torque transducer, and the load torque is estimated by the minimal order state observer based on the torque component of the vector control induction meter. Therefore, the torque controller is not affected by a load torque disturbance.

• 대한전자공학회논문지SD
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• 제38권4호
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• pp.24-24
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• 2001

빠른 반도체 기술의 발전으로 인하여 VLSI 회로의 복잡도는 크게 증가하고 있다. 그래서 복잡한 회로를 테스팅하는 것은 아주 어려운 문제로 대두되고 있다. 또한 집적회로의 증가된 집적도로 인하여 여러 가지 형태의 고장이 발생하게 됨으로써 테스팅은 더욱 중요한 문제로 대두되고 있다. 이제까지 일반적으로 지연 고장 테스팅에 대한 신뢰도는 가정된 고장의 개수에 대한 검출된 고장의 개수로 표현되는 전통적인 고장 검출율로서 평가되었다. 그러나 기존의 교장 검출율은 고장 존재의 유무만을 고려한 것으로써 실제의 지연 고장 테스팅에 대한 신뢰도와는 거리가 있다. 지연 고장 테스팅은 고착 고장과는 달리 경로의 진행 지연과 지연 결함 크기 그리고 시스템 동작 클럭 주기에 의존하기 때문이다. 본 논문은 테스트 중인 경로의 진행 지연과 지연 결함 크기를 고려한 새로운 고장 검출율 메트릭으로서지연 결함 고장 검출율(delay defect fault coverage)을 제안하였으며, 지연 결함 고장 검출율과 결함 수준(defect level)과의 관계를 분석하였다

• 전자공학회논문지A
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• 제29A권9호
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• pp.85-93
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• 1992

In this paper, the new timing optimization algorithm for combinational networks is proposed. First, we introduce the concept of P-path redundancy which is the extension of redundancy concept used in the testing of combinational networks. In this approach, the critical delay is minimized by removing the P-path redundant side inputs of the critical path, and more accurate timing optimization is possible by systematically considering the statically unsensitizable paths as well as the statically sensitizable paths. It's possible with all previous longest path based approaches that the critical delay of resulting network after timing optimization may be even increased. However, the proposed method guarantees to exclude such a possibility, and can be applied to optimize the timing of combinational networks in technology independent, and dependent phase.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2003년도 하계학술대회 논문집 B
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• pp.1108-1110
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• 2003

The control method of programmable dynamometer for overall test of machine is to load the reference torque which is computed from torque transducer into motor under test. But the torque information detected from torque transducer have a lot of noise when the load torque of meter is a small quantity or changing. Thus, torque transducer must have a low pass filter to detect a definite torque information. But The torque delay generated by filter with torque transducer occur a torque trouble for meter torque of programmable dynamometer. The proposed system improved the problem of the torque measuring delay with torque transducer, and the load torque is estimated by the minimal order state observer based on the torque component of the vector control induction moter. Therefore, the torque controller is not affected by a load torque disturbance.

• JSTS:Journal of Semiconductor Technology and Science
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• 제16권2호
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• pp.226-235
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• 2016

The yield of 3D stacked IC manufacturing improves with the pre-bond integrity testing of through silicon vias (TSVs). In this paper, an efficient pre-bond test method is presented based on IEEE std. 1500, which can precisely diagnose any happening of TSV defects. The IEEE std. 1500 wrapper cells are augmented for the proposed method. The pre-bond TSV test can be performed by adjusting the driving strength of TSV drivers and the test clock frequency. The experimental results show the advantages of the proposed approach.

• 한국음향학회:학술대회논문집
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• 한국음향학회 1985년도 학술발표회 논문집
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• pp.47-49
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• 1985

In most of ultrasonic NDT(Non-Destructive Testing) equipments using A-scan display technic, it is one of the inconveniences that the user must be proficient in reading the displayed signals for the accurate decisions. In this study, a simple microprocessorized NDT machine for the flaw detection was developed. The operation of system is based on the conventional NDT system. The microprocessor detects the time delay between transmitted pulse and echos by counter-measure method. Then according to the scanning position, the location of flaw orthe other side of testing object is plotted on the CRT. The main advantages of the developed system are simplicity in handling, recording capability of measured data, and low cost.