• 한국정보통신학회논문지
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• 제22권5호
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• pp.754-763
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• 2018

선박 ICT융합 장비를 개발하여 선박에 탑재하기 위해서는 형식승인이 필수적으로 이루어져야 하며, 이를 위해서는 환경시험과 기능시험이 요구된다. 환경시험은 대상 장비가 선박 및 해상환경에서 동작하기 위해 요구되는 내구성을 만족하는지 시험하는 것을 의미하며, 기능시험은 대상 장비가 국제표준을 준수하여 고유 기능을 정확하게 수행하는지 시험하는 것을 의미한다. 국내 선박 ICT융합 장비에 대한 환경시험 가능 기관은 227여 곳에 달하는 반면, 기능시험 가능 기관은 전무한 실정이다. 이러한 이유로 현재 선박 ICT융합 장비 기능시험 시설을 구축 중에 있으며, 본 논문에서는 우선적으로 추진 중인 선박 디지털 인터페이스 및 항해통신장비의 기능시험 체계의 개발에 관한 내용을 다룬다. 주요 내용은 대상 장비의 기능시험을 단일 테스트 및 통합 테스트의 두 단계로 수행함으로써 시험 결과의 신뢰성을 향상시키는 것으로, 단일 테스트는 대상 장비의 고유 기능이 정상적으로 동작하는지를 확인하는 것이고, 통합 테스트는 정상적으로 다른 항해통신장비와 조화롭게 동작하는지를 검증하는 것이다. 이를 위해 단일 테스트에 요구되는 부가 연동 장비 등의 필수 기능 요소와 통합 테스트에 요구되는 연계 및 확장 요소를 분석한다.

• 시스템엔지니어링학술지
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• 제10권1호
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• pp.73-80
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• 2014

Designing test case flows for water crossing operation of a wheeled vehicle is a new attempt for which very limited experiences exist. In this paper, a Function Flow Block Diagram(FFBD) and a Classification Tree Method(CTM) were combined to see if this method is viable to generate the test case flows at the functional analysis stage. It was found that this method can be practically used for the very complicated test case generation.

• 대한의용생체공학회:의공학회지
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• 제28권2호
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• pp.250-257
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• 2007

Functional gastrointestinal disorders affect millions of people of all age regardless of race and sex. There are, however, rare diagnostic methods for the functional gastrointestinal disorders because functional disorders show no evidence of organic and physical causes. Our research group identified recently that the gastrointestinal tract well in the patients with the functional gastrointestinal disorders becomes more rigid than healthy people when palpating the abdominal regions overlaying the gastrointestinal tract. The aim is, therefore, to develop a diagnostic method for the functional gastrointestinal disorders based on quantitative measurement of the rigidity of the gastrointestinal tract well using ultrasound technique. For this purpose, a preliminary ultrasound diagnostic system was developed and verified through phantom tests. The system consisted of transmitter, ultrasonic transducer, receiver, TGC, and CPLD, and verified via a phantom test. For the phantom test, ten soft-tissue specimens were harvested from porcine. Five of them were then treated chemically to mimic a rigid condition of gastrointestinal tract well, which was induced by functional gastrointestinal disorders. Additionally, the specimens were tested mechanically to identify if the mimic was reasonable. The customized ultrasound system was finally verified through application to human subjects with/without functional gastrointestinal disorders(Normal and Patient Groups). It was identified from the mechanical test that the chemically treated specimens were more rigid than normalspecimen. This finding was favorably compared with the result obtained from the phantom test. The phantom test also showed that ultrasound system well described the specimen geometric characteristics and detected an alteration in the specimens. The maximum amplitude of the ultrasonic reflective signal in the rigid specimens $(0.2{\pm}0.1Vp-p)$ at the interface between the fat and muscle layers was explicitly higher than that in the normal specimens $(0.1{\pm}0.0Vp-p)$ (p<0.05). Clinical tests using our customized ultrasound system for human subject showed that the maximum amplitudes of the ultrasonic reflective signals nea. to the gastrointestinal tract well for the patient group$(2.6{\pm}0.3Vp-p)$ were generally higher than those in normal group$(0.1{\pm}0.2Vp-p)$ (p<0.05). These results suggest that newly designed diagnostic system based on ultrasound technique may diagnose enough the functional gastrointestinal disorders.

• Asian Pacific Journal of Cancer Prevention
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• 제15권5호
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• pp.2045-2049
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• 2014

Background: Functional status is the ability to perform daily activities. Little is known about quality of life and health status of gynaecological cancer patients. The present study therefore aimed to evaluate the functional status of women receiving treatment for gynecological oncological disease while not hospitalised. Materials and Methods: This descriptive study covered 42 patients monitored by the Gynecological Oncology Unit in 2011. Data were collected using the Functional Living Index-Cancer and analysed with the chi square test, independent samples t-test, Mann-Whitney U test, one-way ANOVA test and the Kruskal-Wallis H test. Results: Of the 42 cases, 66.7% had been diagnosed within the previous year and 90.5% were undergoing chemotherapy. The most severe symptoms experienced were pain (35.7%), fatigue-weakness (40.5%) and nausea and vomiting (56.5%). Daily activities where the most difficulty was experienced were housework (28.6%), average pace walking (31.0%), carrying more than 5 kg (28.6%). The mean Functional Living Index score was quite high ($103.5{\pm}24.1$). FLIC-C scale scores did not vary with the educational status, diagnosis duration, and family history of cancer (p>0.05). Conclusions: Evaluation of the functional status of gynecological cancer patients and how they cope with problems should indicate to healthcare professionals what help can be given to maintain quality of life.

• 지역사회간호학회지
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• 제22권1호
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• pp.75-85
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• 2011

Purpose: The purpose of this study was to describe the status of the functional health literacy of the elderly living in a rural community and to identify the influencing factors on the functional health literacy. Methods: Subjects(n=238) aged over 60 years were selected for data collection. Functional health literacy was measured by Korean Health Literacy, which consisted of 15 items including eight numeracy and seven comprehension items. Descriptive statistics, t-test, ANOVA with Scheffe test, and stepwise multiple regression were used to analyze the data. Results: The mean score of total functional health literacy was $6.66{\pm}3.31$, numeracy was $3.52{\pm}1.76$, and comprehension was $3.41{\pm}2.10$. Of the subjects, 39.1% showed a low score below the median split. In the results of stepwise multiple regression, the factors affecting functional health literacy were basic literacy, age, number of chronic diseases, self-reported health status, and gender. These factors accounted for 33.0% of functional health literacy. Conclusion: These results suggest that interventions for improving functional health literacy are necessary to enhance elders' ability of self-care management. In addition, it is needed to take into account the individual characteristics of the subjects depending on their gender, age, and health status.

• 대한물리치료과학회지
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• 제15권4호
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• pp.1-9
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• 2008

Background: This study was to investigate effects of falls prevention exercise on functional fitness in elderly. Methods: A total of 45 healthy over 65years old adults (men=15, women=30) who were participated in this study. Exercise were involved in the period of 12 week complex physical training for around 50 minutes a day, three times per week. We measured subjects' physical activity levels by short physical performance battery(SPPB) test, timed up & go(TUG) test, one leg standing test(OLST) with closed eyes and maximal step length (MSL) test. Results: After falls prevention exercise, there were statically significant differences in SPPB, TUG, OLST and MSL test (P<.01) between pre and post test. There were statically significant differences in SPPB, TUG, OLST, MSL between pre and post test in men and women. There were statically significant differences between men and women in SPPB, TUG, OLST and MSL test. Conclusion: Falls prevention exercise had significant effects on physical fitness level in elderly, with a result increase muscle strength, balance ability and it might prevent falls.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2013년도 춘계학술대회 논문집
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• pp.1587-1588
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• 2013

• 한국우주과학회:학술대회논문집(한국우주과학회보)
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• 한국우주과학회 2004년도 한국우주과학회보 제13권2호
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• pp.308-311
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• 2004

This paper describes design, implementation and functional test of on-board flight analog video system. Video system is the part of the telemetry system as a means of providing flight vehicle's image data. Adopting analog video transmission technique, we could design and test the system in a short time and implement the prototype model with simpler circuits. As results of the functional test, we have made the verification and validation of two cameras' switching in time, and frequency modulation and demodulation of NTSC color signals successfully.

• 국제물리치료학회지
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• 제9권3호
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• pp.1543-1548
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• 2018

The purpose of this study was to analyze the effects of manual therapy on lower extremity alignment in pelvic malalignment. The subjects were 20 adults with pelvic malalignment. They were divided into two groups: manual therapy group (n=10) and stretching exercise group (n=10). Each group performed the intervention two times per week for 4 weeks. The lower extremity alignment was measured by pelvic deviation, functional leg length inequality, and plantar pressure distribution, which were measured between pre- and post-test. In the result of pelvic deviation, there was a significant difference between the pre- and post-test of the manual therapy group and stretching exercise group. In the result of the functional leg length inequality, there was a significant difference between the pre- and post-test of the manual therapy group. In the result of plantar pressure distribution, there was a significant difference between the pre- and post-test of the manual therapy group. These findings suggest manual therapy improves the pelvic deviation, functional leg length inequality, and plantar pressure distribution in the pelvic malalignment.

• 대한물리치료과학회지
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• 제2권3호
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• pp.633-643
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• 1995

A longitudinal study of self-concept and functional independence in 22 adolescents with progressive muscular dystrophy is reported. 30 adolescents with progressive muscular dystrophy completed Korean Self-Concept Scale, Modified Barthel Index, and a questionnaire examining demographic and medical factors. Functional independence was measured by Modified Barthel Index. Two years later, 22 of the 30 adolescents with progressive muscular dystrophy completed same Korean Self-Concept Scale and Modified Barthel Index. Adolescents with progressive muscular dystrophy were not changed on self -concept scores between test and retest. At retest adolescents with progressive muscular dystrophy scored significantly lower than at test on Modified Barthel Index. Compared to scale norms, subjects had significantly lower Total Self, Physical Self, Social Self, Self Satisfaction, Self Behavior scores. Age, years of education, and functional independence were significantly related self-concept. Functional independence was significantly related years of education.