• Journal of Navigation and Port Research
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• v.35 no.6
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• pp.509-514
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• 2011

The purpose of this study is to provide some ideas for the improvement of the seafarers physical examination systems(PES) in Korea. This paper presents basic data about the items and detailed standards of the seafarers PES which are currently carried out worldwide. In this paper, a comparative analysis of the domestic and the foreign seafarers PES is conducted. In addition, rule of judgment in the railroad workers PES in Korea has been examined for reference. The paper proposes the amended and supplemented 16 items and detailed standards of the seafarers PES. Expert opinions of Occupational and Environmental Medicine specialist and the recommendations of ILO/WHO are also considered to draw an improvement scheme for the seafarers PES in Korea.

• Korean Journal of Clinical Laboratory Science
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• v.47 no.2
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• pp.83-89
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• 2015

Although Mycobacterium tuberculosis complex strains remain responsible for the majority of diseases caused by mycobacterial infections worldwide, the increase in HIV (human immuno deficiency virus) infections has allowed for the emergence of other non-tuberculous mycobacteria as clinically significant pathogens. M. tuberculosis was detected by two-tube nested polymerase chain reaction (PCR) and non-tuberculous mycobacteria was detected by PCR-restriction fragment length polymorphism (RFLP) with Msp I. Result of niacin test is equal to result of two-tube nested PCR after culture for M. tuberculosis. In this study, acid fast bacilli stain (AFB. stain) >2+ case, Detection of Mycobacteria is similar to result before culture and after culture. AFB. stain <1+ case, result of mycobacteria is distinguished. Conclusionly, these results suggest that identification of mycobacteria must go side by side both culture and PCR for more fast and accuracy.

• Journal of the korean academy of Pediatric Dentistry
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• v.45 no.3
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• pp.363-369
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• 2018

A salivary testing instrument has an advantage that the method is simple and can be performed in a short time. However, it is necessary to verify the factors that affect the reliability of the result, because the device is easy to use and even saliva collection is simple. The aim of this study was to compare the difference of the test results according to the measurement time in order to analyze the time factor of the external variable among the factors that may affect the measurement results of the salivary testing instrument. The relationship between the measured values of the salivary testing instrument to identify the internal variables was analyzed. Saliva was collected from 20 randomly selected patients regardless of age, sex, or diseases. The mean age was 46.6 years, 10 males and 10 females. The saliva collected was directly measured with the salivary testing instrument as group I. The saliva samples were placed in air in a paper cup for 10 minutes, and then measured as group III. Then group I was remeasured after 30 minutes and assigned as group II. Group III was remeasured after 30 minutes and called as group IV. As a result, all of the cariogenic bacteria, acidity, buffer capacity, blood, leukocyte, protein and ammonia, except buffer capacity, showed statistically significant changes in group II and IV. This means that the reliability of the test results is poor if the measurement time is not observed. Cariogenic bacteria were correlated with leukocyte and protein, buffer capacity was related to acidity, protein, and protein was related to buffer capacity and leukocyte. In conclusion, the result according to the measurement time as the external variable was different, which means that time must be strictly monitored when testing saliva. It is also necessary to take into account the relevance of the correlations between the internal variables and the clinical data.

• The KIPS Transactions:PartB
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• v.10B no.3
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• pp.305-310
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• 2003

In this paper we deal with the system design and development of the high-speed automatic precision inspection for the defects of bolts. In order to inspect bolts continuously, we used the conveyor system. Also, this conveyor includes the servo motor and encoder to achieve accurate movement. According to encoder signal, line-scan camera captures the line-by-line image of bolts and after one frame is accumulated, various parameters are calculated and inspected by image processing algorithms. Experimental results using the developed facilities are presented to demonstrate the efficiency of the proposed equipment.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.24 no.2
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• pp.147-153
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• 2024

X-rays are extensively employed for non-destructive inspection, applied to packaged food, human anatomy, and industrial products. Recently, this technology has extended to inspecting batteries in electric vehicles. Given the challenge of manual inspection for a substantial volume of batteries, deep learning is leveraged to detect battery defects. However, the effectiveness of deep learning heavily depends upon data size, and acquiring authentic defective images is a difficult and time-consuming task. In this study, we use data augmentation and investigate the impact of data size on battery inspection performance. The results provide valuable insights for enhancing the capabilities of the inspection process.

• Proceedings of the Korean Society for the Gifted Conference
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• 2005.11a
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• pp.165-182
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• 2005

본 논문에서는 영재와 정보과학영재에 대한 여러 학자들의 정의와 특성 및 관련문헌의 분석을 통하여 정보과학영재의 특성과 정의를 재정립하여 초등정보과학영재 선발평가문항을 개발하였고, 개발된 문항의 신뢰도와 타당도를 검증하기 위해 1, 2차 예비검사를 통해 문항의 난이도와 변별도를 조정하였으며, 최종 검사를 통해 선발된 영재아와 일반 우수아의 검사 결과를 분석하고 정리하였다.

• The tire
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• s.232
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• pp.33-37
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• 2007

우리협회에서는 타이어 정비불량으로 인한 교통사고를 예방하고 올바른 사용방법을 홍보하고자 업계와 합동으로 타이어 안전검사 및 서비스 행사를 매년 실시하고 있으며, 특히 금년부터는 한국도로공사, 교통안전공단, 경찰청 등 유관기관과의 유기적인 협력관계를 바탕으로 타이어 사용.관리에 대한 범국민적인 안전의식 향상을 위해 타이어 안전서비스 확대 등 적극적인 공동방안을 모색, 실시하고 있습니다.본고는 우리협회가 운전자들의 타이어 안전사용.관리에 관한 실태 파악을 위해 금년 상반기(3-7월)간 실시한 타이어 안전검사와 설문조사의 결과입니다.

• Journal of the Korea institute for structural maintenance and inspection
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• v.2 no.4
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• pp.172-176
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• 1998

강관 등과 같이 곡면을 이루는 구조물 용접부의 내부 결함을 검출하기 위한 기법을 제안하였다. 인공 결함을 만들어 초음파 비파괴검사를 행하고, 곡면의 표면 거리($Y_s$)를 계산하여 실측한 참값($Y_T$)과 비교해 보았다. 제안된 방법으로 계산한 값이 참값에 대하여 1%이하의 오차 범위에 들어오므로 강관 용접부의 내부 결함 검사에 응용될 수 있다.

• The tire
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• s.236
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• pp.38-43
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• 2008

우리협회에서는 타이어 장비불량으로 인한 교통사고를 예방하고 올바른 사용방법을 홍보하고자 업계와 합동으로 타이어 안전검사 및 서비스 행사를 매년 실시하고 있으며, 범국민적인 타이어 사용 및 관리에 대한 안전의식 향상을 위하여 한국도로공사와 교통안전공단, 경찰청 등 유관기관과의 유기적인 협력을 바탕으로 타이어 안전서비스를 확대, 실시하고 있다. 본고는 08년 상반기간 우리협회가 실시한 타이어 정기 안전검사와 운전자의 타이어 사용.관리에 대한 설문조사의 결과이다.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.10 no.5
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• pp.359-363
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• 2017

The LED (Liquid Emitting Diode) frame device is a big part of the representative display industry in Korea. LED is an essential part for TV, monitor, notebook, and mobile phone. In Japan, Taiwan, China and other countries, investment in LEDs has been strengthened, and productivity has become an important issue. However, as the size of the parts becomes smaller, the inconsistent inspection by the human eye becomes a problem of reliability, so that the automatic inspection process becomes an essential issue in the field of LED module inspection. In this paper, we investigate defects in visual inspection process using computer vision technology. The inspection of the LED frame is made quickly and accurately, thereby improving the efficiency of the process and shortening the inspection time. As a result of applying the inspection system to the field, we confirmed that it is possible to inspect quickly and accurately.