• 한국인터넷방송통신학회논문지
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• 제8권3호
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• pp.71-79
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• 2008

본 논문에서는 평판 디스플레이용 유리의 평탄 도와 두께를 측정하기 위한 검사시스템을 구성한다. 유리 계측에 필요한 레이저센서와 로봇 암의 성능을 분석 및 해석한다. 3가지 레이저 센서를 사용하여 비교 분석하였고, 로봇암은 볼 스크루 타입을 사용하여 유리 계측 방법을 논하고, 문제점을 찾아내어 해결책을 제시한다. 유리의 평탄도와 두께 측정에 있어 스테이지와 로봇암에 의한 오차를 최소화하기 위해서 기구적 오차를 고려한 계측을 통해 성능을 개선한다.

• 한국환경복원기술학회지
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• 제6권1호
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• pp.65-70
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• 2003

This research aims to classify wetland types and evaluate functions of a wetland created by abandoned rice paddies. The case study area is Ja-un wetland in Daejeon Metropolitan City. In this study, wetland types were classified based on the basic elements of wetlands such as hydrology, vegetation, and soil conditions. This study was carried out based upon field surveys, drawing maps and publication, and modified-RAM which can evaluate the general functions and conservation values of wetlands. The analysis shows that several types of wetlands were identified, such as Palustrine/ Perennial/ Hydrophytes, Palustrine/ Perennial/ Openwater, Palustrine/ Seasonal/Herbal, Palustrine/ Seasonal/ Shrub and Scrub, Palustrine/ Seasonal/ Hydrophye, and Riparian/ Seasonal/ Shrub and Scrub in the Ja-un wetland. The average level of functions of the wetlands is very "HIGH", and it is recommended that prompt conservation measures should be taken.

• 한국안전학회지
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• 제35권1호
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• pp.62-69
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• 2020

Most people suffer from stress during day life because modernized society is very complex and changes fast. Because stress can affect to many kind of physiological phenomena it is even considered as a disease. Therefore, it should be detected earlier, then must be released. When a person is being stressed several bio-signals such as heart rate, etc. are changed. So, those can be detected using medical electronics techniques. In this paper, stress assessment system is studied using random forest algorithm based on heart rate, RR interval and Galvanic skin response. The random forest model was trained and tested using the data set obtained from the bio-signals. It is found that the stress assessment procedure developed in this paper is very useful.

• 한국연소학회:학술대회논문집
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• 한국연소학회 2014년도 제49회 KOSCO SYMPOSIUM 초록집
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• pp.317-317
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• 2014

The structure performance of a sealed power facilities and the explosion simulation contains significant amounts of scatter, and variability has been characterized in material properties of the structure, a sealed space density, combustible gas volume, gas concentrativeness, ignition site, and gas volume. In order to deal with such uncertainties, structural reliability analysis calculates the failure probability and the reliability index relevant to selected limit states providing quantitative measures of these uncertainties. In this study, structure safety assessment method on the explosion of a sealed power facilities was proposed by using the response surface method (RSM).

• 융합보안논문지
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• 제3권1호
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• pp.85-94
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• 2003

소프트웨어 형상관리 공정은 형상항목의 정확성과 완전성을 보장하고 형상을 관리하는 공정으로 본 논문에서는 형상관리 공정에 대한 구체적인 활동들에 대하여 ISO/IEC 12207과 ISO/IEC 15846을 비교한다. 또한 최근 소프트웨어 프로세스 심사모델로서 널리 알려진 ISO/IEC 15504와 CMM 및 CMMI에서의 형상관리 공정에 대한 활동 비교 및 분석을 통하여 성숙수준을 예측할 수 있는 절차와 메트릭스를 제시하여 정량적인 측정이 가능하도록 한다.

• 한국측량학회:학술대회논문집
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• 한국측량학회 2006년도 춘계학술발표회 논문집
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• pp.339-344
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• 2006

Slope failures are happen to natural disastrous when they occur in mountainous areas adjoining highways in Korea. The accidents associated with slope failures have increased due to rapid urbanization of mountainous areas. Therefore, Regular maintenance is essential for all slope and conducted to maintain road safety as well as road function. In this study, we take priority of making a database of risk factor of the failure of a slope before assesment and analysis. The purpose of this paper is to recommend a standard of Slope Management Information Sheet(SMIS) like as Hazard Map. The next research, we suggest to pre-estimated model of a road slope using Logistic Regression Model.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2007년도 추계학술대회논문집
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• pp.88-91
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• 2007

Turnout system is a mechanical installation enabling trains to be guided from one track to another which is consists of point blades, common crossing and guard rail etc. These structural feature causes vibration, noise and damages while railroad car wheel is passes by. A tilting train is a train with a tilting mechanism that enables increased speed on regular railroad tracks. The aim of this paper is to study a characteristics of the shock-vibration and noise of tilting and existing train passes by turnout systems. To analyze and assesment, noise and vibration measurement was carried out at the Naesu-station of Chungbuk-line which equipped with cast manganese crossing and built-up crossing and Illo-station of Honam-line which equipped with cast manganese crossing.

• The Journal of Korean Physical Therapy
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• 제1권1호
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• pp.47-61
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• 1989

This paper presents the event approach to motor skill acquisition as a theoretical treatment of the learning and relearning of motor skill. 1) The use of norm-referenced developmental assesment tools and standardized qualitative assessment tool is an important component of infant movement evaluation. 2) The kinesthetic modality relaying movement and position imformation to the central nervous system is important for the detection and corretion of movement error. 3) The event approach treats the actor and the environment as inseparable in the acquisition of skills. 4) Motoy learning focuses almost entirely on how the skill is learned, contRolled and reTained. 5) Developmental assessment have needed an assessment of motor development. 6) A significant difference was found between articulation disorders children and motor coordination problem. 7) verbal ability is not essential for the learning of motor skills. 8) The Control of motor skills is a cognitive ability.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2005년도 학술발표회 논문집
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• pp.1486-1490
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• 2005

지속가능한 수자원 개발 및 관리를 위해서는 유역 내에서 진행되고 있는 수자원에 관련된 활동들이 지속가능한 개발의 개념에 부합하는지 여부를 판단해야 한다. 이를 위해서는 국가, 유역, 지자체 등의 수문, 수질, 사회, 경제, 환경적인 요인들을 고려한 다변수 평가 지수가 필요하다. 본 연구에서는 유역의 수자원을 평가할 수 있는 지표들을 선정하고 이들 간의 중요도는 계층적 분석기법(Analytic Hierarchy Process, AHP)을 사용하여 산정하였으며 이들을 종합한 수자원 지속가능성 지수(WRSI, Water Resources Sustainability Index)를 개발하였다. WRSI는 경제적 효율성 세부지수, 사회적 공평성 세부지수, 환경 보전성 세부지수, 유지관리능력 세부지수로 구성하였다. 지표들과 세부지수들 간의 중요도는 전문가들에 대한 설문조사를 통하여 산정하였다. 개발된 WRSI 구성지표들의 표준화는 이들의 적정 확률분포를 선정한 후 누가확률을 사용하여 산정하는 방법을 개발하여 사용하였다.

• 한국염색가공학회지
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• 제10권6호
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• pp.55-66
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• 1998

In order to investigate the detergency effects of various detergents to stained polyester & cotton fabric with solid soils such as carbon black, liquid paraffin and fat, the optimum washing conditions according to the types of washing agent, the assesment of detergency effect by the measurement of reflectance after and before washing were studied. The detergency effect of various detergents to stained polyester and cotton fabric increased by using the mixtures of bleaching and enzyme detergent. In order to obtain the excellent detergency effect, 2-step treatment, the pre-washing with bleaching agent and bleaching-enzyme mixture detergent treatment is preferred. In comparison of the detergency to polyester and cotton fabric, it is assumed that the detergency to polyester stained fabric was superior than that to cotton stained fabric because of the difference of adhesive force between soil material and fabric in preparing solid stained fabric.