• 한국해양환경ㆍ에너지학회지
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• 제16권4호
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• pp.268-275
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• 2013

해양경찰은 2007년부터 해양오염예방관리가 우수한 사업장을 대상으로 "자율점검제도"를 도입하여 관리하여 왔으며, 사업장의 많은 관심과 참여로 효과를 거두었다. 그러나 수년이 지나면서 변화된 사회 환경과 해양종사자들의 의식 변화 그리고 내부조직의 변화 등이 적기에 반영되지 않아 정체되어 있는 실정이다. 이러한 내외부의 환경변화를 수용하기 위하여 자율점검제도에 참여하는 사업장의 해양종사자를 대상으로 설문조사를 실시하였으며, 제도를 재조명하고 효과적인 개선방안을 마련하는데 중점을 두었다. 제도의 실효성을 높이기 위해서는 홍보를 강화하고 5톤 이상 선박의 해양오염관리를 위한 제도개선이 필요하며, 해양오염관리가 우수한 사업장은 사업 활동과 점검에 대한 부담을 줄일 수 있도록 해양환경관리법에 "자율점검제도"를 반영해야 한다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1992년도 한국자동제어학술회의논문집(국내학술편); KOEX, Seoul; 19-21 Oct. 1992
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• pp.513-518
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• 1992

We are now doing research for the drawing check of local parts in mechanical drawing made by a CAD system. It needs the recognition of drawing elements with respect to the local parts. Because, we usually abbreviate the dimensioning in the mutually related drawing elements. This paper is concerned with a computer aided supporting system to the dimension check and recognition of local parts in mechanical drawings. This sytem has been applied to some examples and we have confirmed the feasibility of this checking method.

• 제어로봇시스템학회논문지
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• 제11권8호
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• pp.662-668
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• 2005

This paper presents a realization of check valve condition monitoring system based on fault diagnosis algorithm and Fieldbus communication. We first acquired AE(acoustic emission) sensor data at the check valve test loop, extract fault features through the teamed neural network, and send the processed data to a remote site. The overall system has been implemented and experimented results are given to show its effectiveness.

• 대한간호학회지
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• 제27권3호
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• pp.563-576
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• 1997

This study was carried out to identify basic data for more efficient operation of comprehensive health check-up centers in the national health care system. The researcher reviewed and analyzed the main symptoms of the subjects according to sex, age, occupation and positive rate in the screening tests of a comprehensive health check-up, performed at one comprehensive health check-up center in located in a hospital. The subjects were 512 persons who had a check-up at the comprehensive health check-up, center in K university hospital in Seoul from October 2, 1996 to March 30, 1997. A questionaire developed by the researcher to obtain subject's general characteristics, main symptoms, medical examination, diagnosed disease was used as the tool for the study. The researcher analyzed the data with SPSS PC/sup +/ program. : the distribution of the subject's general characteristics and main symptoms was described with percentages and the difference between main symptoms and screening tests analyzed with X²-test, t-test, ANOVA. The result of this study are as follows : 1. For the distribution of diagnosis in males. liver disease was most frequent and hypertension was second : in females, hypertention and liver disease were not common in that order. 2. The most common complaints were indigestion in the digestive system, sputum in the respiratory system, irregular heart beat in the cardiovascular system, frequent urine in the urinary system vertigo in the hematologic system. 3. The main symptoms according to sex were for females, a statistically siguificant higher rate of complaints in the digestive system, cardiovascular system, urinary system, hematologic system, musculoskeletal, mental & nervous system as compared to males. 4. The main symptoms according to age were that in the the second decade there wara higher rate of complaints in the digestive system, and cardiovascular system than in the older age groups : and in the fifth decade more in the musculoskeletal system. 5. The main symptoms according to occupation were that formers and fishers had a higher rate of complaints in the mental and nervous system as compared to other occupation groups : and office workers, in gynecology. 6. The main symptoms according to diagnosis, were symptoms of the digestive system, frequent in liver disease : symptoms of the cardiovascular system in allergic disease. 7. The screening tests which showed the highest rates were UGI /FGS, PFT : In males a higher rate of abnormality was seen in abdominal ultrasono- graphy and in, females, in mammography. 8. In screening tests according to sex, males showed a higher positive rate for chest X-rays, and LFT, and females, in mammography, pap smear, CBC. 9. In screening tests according to age, higher positive rates of obesity, high blood pressure, chest X-ray, mammography, pap smear, FBS, CBC, urine test were seen in the fifth decade : PFT and abdominal ultrasonography in the third decade. The subjects who wanted comprehensive health check-up were not asymptomatic but had an illness with several symptoms. It is found that the most frequent diagnosed diseases were hypertention and liver disease. So proper observations must be done for them. Comprehensive health check-ups should be changed to a comprehensive examination including treatment beyond examination for those subjects with positive results.

• 비파괴검사학회지
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• 제27권6호
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• pp.509-519
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• 2007

This paper presents new techniques under development for monitoring the health and vibration of the active components in nuclear power plants, The purpose of this study is to develop an automated system for condition classification of a check valve one of the components being used extensively in a safety system of a nuclear power plant. Acoustic emission testing for a check valve under controlled flow loop conditions was performed to detect and evaluate disc movement for valve failure such as wear and leakage due to foreign object interference in a check valve, It is clearly demonstrated that the evaluation of different types of failure types such as disc wear and check valve leakage were successful by systematically analyzing the characteristics of various AE parameters, It is also shown that the leak size can be determined with an artificial neural network.

• 정보보호학회논문지
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• 제11권6호
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• pp.27-40
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• 2001

오프라인 시스템은 은행의 참여 없이 지불을 처리하기 때문에 그 과정에서 발생한 거스름이 화폐의 기능을 갖도록 만드는 것은 어렵다. 대부분의 오프라인 수표시스템은 거스름의 재사용을 고려하지 않고 수표를 두 부분으로 구성하여 하나는 지불에 사용하고 다른 하나는 은행에서 잔액을 환불받을 때 사용하도록 되어있다. 그러나 이 방식은 남은 잔액을 다시 쓸 수 없다는 불편함이 있고, 지불액과 환불액의 보수관계 때문에 수표의 익명성을 저해하는 요인이 있다. 이 논문에서는 수표의 잔액을 다시 쓸 수 있는 오프라인 시스템을 제안한다. 이 시스템은 같은 수표가 사용된 지불행위를 서로 연관시킬 수 없도록 하였으며, 이중사용과 초과사용 등의 부정행위가 발생하면 그 책임자를 밝혀낼 수 있도록 고안하였다. 또한 인출에서 환불가지 소요되는 전체 연산비용은 기존의 수표시스템에서 여러 개의 수표를 인출하여 사용하는 경우보다 적게 들도록 하였다.

• 한국멀티미디어학회논문지
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• 제18권5호
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• pp.631-640
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• 2015

Recently CCTV system is installed widely purpose to enhanced physical security, gathering criminal evidence and management of facilities. In spite of supporting strong management function, CCTV system has weak security function. Therefore high security management function is required. Generally it's not easy to control the devices under NAT using a NMS(Network Management System). So we design and implement alive check algorithm of CCTV devices under NAT using DVRNS address resolution and TCP session check. We evaluated and analyzed of developed system on real environment which includes about 100 DVRs under NAT. As a result of test, it showed that device alive check and DVRNS address resolution were well performed without any error.

• 한국멀티미디어학회논문지
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• 제20권4호
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• pp.660-670
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• 2017

In case of auditing of the information system development project applying agile methodology, it is not appropriate to carry out a comprehensive check on the establishment of information system with only the existing check on software. This study considers the characteristics of the agile methodology in terms of Information System Auditing. To improve inspection quality of development project with agile methodology by deriving detailed check items of test activities at each stage, this study proposes a strategy to improve the check on software for the test activities of the supervisory model that is suitable for agile methodology, which emphasizes repetitive work.

• 반도체디스플레이기술학회지
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• 제8권4호
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• pp.77-82
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• 2009

In robot operation, a motor with multi-degree of freedom motion control and an encoder for motor control are needed. To perform precise motion, location, and velocity control, the operation of motor and encoder with superior performance is important. In this paper, we studied performance evaluation system that can evaluate the performance of motor and encoder. The performance of motor and encoder can be evaluated in terms of disconnection check, signal variation count, and U, V, W signal check. Disconnection check verifies signal connection between a motor and an encoder, signal variation check verifies A, B signal by counting the number of signal A, B when a motor revolves, and U, V, W signal check verifies operating direction of a motor. The result is shown at graphic LCD integrated in system, and can be checked in PC with PC communication.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2004년도 추계학술대회
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• pp.253-258
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• 2004

Domestic construction industry (including plant engineering industry) faces severe competition with world-wide leading companies under WTO (World Trade Organization) system. To survive in this competition, domestic construction company should establish and operate standardization system efficiently. In this paper, check list is presented to prepare the efficient reliability management system in domestic construction. And then, the check list is applied in MIR(Maturity Index on Reliability) estimation item to estimate reliability management level of company quantitatively.