• Title/Summary/Keyword: Type approval

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A Study on the Regulation of Civil Flight Simulator

  • Lee, Jung-hoon
    • Journal of Aerospace System Engineering
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    • v.14 no.2
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    • pp.12-19
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    • 2020
  • In Korea, the regulation is MOLIT Notice 2018-290, Guidance for Approval of Synthetic Flight Trainer as Flight Simulator and Flight Training Device. The FAA (Federal Aviation Administration) categorizes FSTD (Flight Simulation Training Device) into FFS (Full Flight Simulator) and FTD (Flight Training Device), according to its level. Additional categories for regulation are airplane and helicopter, depending on the type of aircraft. In this study, the objective tests for the handling quality of the FAA and Korean regulations were compared and analyzed. In QPS (Qualification Performance Standard), related test titles, flight conditions, and tolerance limits were analyzed for the handling quality. Based on this study, recommendations on amendments to the regulation was presented.

Recommendations of Pharmacological Treatment in Childhood and Adolescents Obesity (소아, 청소년 비만 약물 치료의 올바른 이해)

  • Jeong, Su Jin
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.12 no.sup1
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    • pp.118-126
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    • 2009
  • The incidence of childhood obesity has increased dramatically. Childhood obesity is an increasing health problem because of its strong associations with chronic health problems in children and adults. These health problems significantly contribute to the development of common chronic diseases in later life, including hypertension, type2 diabetes, hyperinsulinemia, coronary heart disease, and other psychological disorders. So it is an important issue to prevent and treat obesity during childhood and adolescent. Diet and exercise are the cornerstones of treatment for obesity and related complications. For obese children, some clinical trials have shown improvement with diet, exercise, and /or behavioral interventions. Promising interventions for high-risk individuals, such as bariatric surgery and novel pharmacological agents, also require rigorous assessment with attention to long-term patient important outcomes. There are various pharmacological approaches to the treatment of obesity in the adolescent population some of which have FDA approval. In the article we discuss pharmacological approaches to guide the treatment of obesity in the pediatric population, including risks of treatment, monitoring of potential side effects.

The Clothing Purchase Behavior of College Students: A Comparison of Different Money Attitudes (대학생 소비자의 돈에 대한 태도 유형별 의복구매행동)

  • 박정숙;차경욱
    • Journal of the Korean Home Economics Association
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    • v.41 no.6
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    • pp.13-28
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    • 2003
  • The purposes of this study were to identify money altitudes of college students and to examine both socio-economic characteristics and clothing purchase behaviors by different money attitudes. For this study, guestionnaires completed by 2-year and 4-year college students (n=426) were analyzed by factor analysis, cluster analysis, X²- test, and ANOVA. The results of this study were as follows: First, the money attitudes were composed of five factors and they were categorized by three clusters: cluster of considering the money as a tool for future safety, a way of approval and filling up emotions, and inclination toward stinginess and distrust. Second, the factors which were associated with money attitudes were academic level, education level of parents, household income, students' own income, and the economic level of their households. Third, in each type of attitudes, the clothing purchase behavior had four steps of decision making: problem recognition, information search, evaluation of alternatives, and the purchase. There were significant differences in the clothing purchase behavior among the money attitude styles.

Study on the Technical Specifications of ADSL Modem and Power-Line Communication Equipment (ADSL 모뎀 및 전력선통신용 전송장치에 관한 기술기준의 제정 연구)

  • 김용환;조평동;박기식
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2001.10a
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    • pp.415-418
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    • 2001
  • Korean government regulates the technical specifications for the terminal equipments connecting to public telephone network, while equipments in the market are subjected to the type-approval confirming with the technical specifications. foreseeing the revision of the technical specifications, this paper discussed on technologies considered to be additional to the specifications including ADSL modem and power-line communication equipment.

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Modelling Voltage Variation at DC Railway Traction Substation using Recursive Least Square Estimation (순환최소자승법을 이용한 직류도시철도 변전소의 가선전압변동 모델링)

  • Bae, Chang-Han
    • The Transactions of the Korean Institute of Power Electronics
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    • v.20 no.6
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    • pp.534-539
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    • 2015
  • The DC overhead line voltage of an electric railway substation swings depending on the accelerating and regenerative-braking energy of trains, and it deteriorates the energy quality of the electric facility in the DC railway substation and restricts the powering and braking performance of subway trains. Recently, an energy storage system or a regenerative inverter has been introduced into railway traction substations to diminish both the variance of the overhead line voltage and the peak power consumption. In this study, the variance of the overhead line voltage in a DC railway substation is modelled by RC parallel circuits in each feeder, and the RC parameters are estimated using the recursive least mean square (RLMS) scheme. The forgetting factor values for the RLMS are selected using simulated annealing optimization, and the modelling scheme of the overhead line voltage variation is evaluated through raw data measured in a downtown railway substation.

Model of The Korea Regulatory Body of Advanced Practice Registered Nurse (전문간호사 자격관리 전문기관의 조직 및 운영(안))

  • Cho, Jae-Hyun;Kim, Ki-Kyong
    • Journal of Korean Academy of Nursing Administration
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    • v.10 no.4
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    • pp.437-448
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    • 2004
  • Purpose: The study was done to develop the model of regulatory body of advanced practice registered nurse. Method: This was a descriptive study adopted a method of comparison and construction of laws. Result: The type of partnership of government and people were privatization, negotiated rule-making, standard-setting authority, self-regulation. The pattern of partnership were applied to the regulatory body's role; administration of certification and examination, setting standards for nursing education programs and approval nursing programs. The regulatory body of advanced practice registered nurse was organized according to it's role. Conclusions: It is needed to proceed to self-regulation step by step.

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A Study on the Improvements of Type Approval Standard for Water-Related Leisure Activities Instruments (수상레저기구 형식승인기준 개선 연구)

  • Um, Han-Chan;Kim, Shin-Hyo;Kwon, Soo-Yeon;Lee, Hee-Joon
    • Journal of Korea Ship Safrty Technology Authority
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    • s.36
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    • pp.15-27
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    • 2014
  • 본 연구는 수상레저기구 인증제도인 형식승인 검정제도와 우수사업장 제도를 활성화시키고자 형식승인시험기준 및 관련 법령을 개선하기 위한 개정(안) 마련을 위해 수행되었다. 이를 위해 수상레저기구 인증 관련 법령, 기준 및 제도 운영 현황을 조사하고 국내 외 유사인증제도의 내용과 비교 분석하여 수상레저산업 및 관련제도를 활성화할 수 있는 수상레저기구 형식승인기준 개정(안) 등을 제안하였다.

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A Study on the Quality System Evaluation for Civil Aviation (민간항공분야 품질시스템 평가에 대한 연구)

  • Kim, You-Gwang;Park, Guen-Young;Lee, Kyung-Chul;Jin, Young-Kwon
    • Aerospace Engineering and Technology
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    • v.7 no.1
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    • pp.245-253
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    • 2008
  • Quality for civil aviation is very important to maintain the safety of aircraft and public, and strict quality requirements are prescribed in aviation regulations to ensure that each article produced conforms to the type design and is a condition for safe operation. In this study, the quality system requirements for aircraft and parts will be reviewed a concept of FAA's ACSEP(Aircraft Certification System Evaluation Program) and policy for aviation quality system evaluation in comparison with AS9100 for aviation quality management system.

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A Study on DC-DC Converter Development for LRT Wireless Power Supply

  • Han, Young-Jae;Lee, Su-Gil;Lee, Young-Ho
    • Journal of the Korea Society of Computer and Information
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    • v.23 no.12
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    • pp.179-184
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    • 2018
  • In this paper, we have proposed the development of DC-DC converter for LRT power supply. First of all, we have studied converter technology, main functions and characteristics were determined. In also, the converter design was carried out to meet the system design conditions. Based on this design, converter simulation is performed to enable stable charging and discharging of the vehicle system. We have performed the Light-load test according to charge mode, discharge mode. As a result, the manufactured converter performance was verified through the load test, and it's stability was confirmed.

Physical Phenotype Analysis in Obesity Study in vivo (마우스를 이용한 비만연구에서 활용되는 물리적 표현형 분석 기술)

  • Kim, Hyunkyung;Go, Gwang-woong
    • Food Science and Industry
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    • v.51 no.1
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    • pp.37-44
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    • 2018
  • The prevalence of obesity is continually increasing in South Korea; about 1/3 of adults are diagnosed with obesity and 1/2 of adults are overweight in 2016. Abnormal body fat mass increased the risk factors of metabolic syndrome (including hypertension, type II diabetes, dyslipidemia), chronic kidney failure, osteoarthritis, and cardiovascular disease. Ministry of Food and Drug Safety (MFDS) in Korea established the validation and approval system for "functional food" based on related laws and regulations. According to the guideline of MFDS, the biomarkers for obesity study in vitro, in vivo, and clinical trial are well summarized. The analysis of physical phenotypes is necessary condition to study further molecular phenotypes and pathway analysis in vivo study. Thus, we will review currently available physical phenotype analysis; dual energy X-ray absorptiometry (DEXA) and Oxylet gas analysis will be examined in-depth.