• 제목/요약/키워드: Main effect index

검색결과 341건 처리시간 0.029초

석탄발전산업을 위한 지능형 CCTV 기반 스마트안전관리시스템 개발 연구 (Development of a CCTV Based Smart Safety Management System in Thermal Power Plants)

  • 송호준;고건실;신완선
    • 산업경영시스템학회지
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    • 제44권3호
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    • pp.50-63
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    • 2021
  • There has been a steady rate of accident in Coal Thermal Power Plants which have relatively higher chance of mortality. However, neither the systematic view of safety management nor the methodology such as safety factors or system requirements are yet to be studied in detail. Therefore, this study aims to propose a methodology to preemptively deal with safety issues and to secure fact focused responsibility in safety. It consists of two main parts. First, the Safety Measurement Index(SMI) with total 50 factors is proposed by analyzing the key factors that contribute to safety accidents based on failure mode and effect analysis (FMEA) and quality function deployment (QFD). To analyze the safety requirements, index presented by major countries and organizations are discussed. Second, main features of intelligent CCTV are studied to determine their relative importance for the framework of Smart Safety Management System (SSMS). Main features are discussed with four technological steps. Also, QFD was held to analyze to analyze how key technologies deal with Quality Measurement Index(QMI). The research results of this study reveal that scientific approaches could be utilized in integrating CCTV technologies into a smart safety management system in the era of Industry 4.0. Moreover, this reasearch provides an specific approach or methodology for dealing with safety management in Coal Thermal Power Plant.

US Purchasing Managers' Index and its Impact on Korea and US

  • Jeon, Ji-Hong
    • 유통과학연구
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    • 제15권3호
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    • pp.17-25
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    • 2017
  • Purpose - The study is to examine the impact of the US Purchasing Managers' Index (PMI) on Korea and the US industrial economy including the distribution industry. We analyze its effect on the industrial economy centered on the distribution industry using economy indices in Korea and the US. Research design, data, and methodology - The variables are used to analyze the dynamic relationship which occurs among the US PMI, the industrial production index, producer price index, unemployment rate, and manufacturing Inventories Index in Korea and the US from January 1990 to July 2016 using Vector Error Correction Model. Results - As a main result, the impact of the US PMI on all the economy indices both Korea and the US has the same cyclical movement. The US PMI is positively related to the producer price and the industrial production index of Korea and the US, while it is negatively related to unemployment rate, and the manufacturing inventories index in Korea and the US. Conclusions - The US PMI as an advanced index has a power to predict the economies on Korea and the US. In the end, we find that the US PMI has a great impact on Korea and the US industrial economy.

간호대학생의 행복지수 영향요인 (Factors Influencing Happiness Index of Nursing Students)

  • 김영숙;한미영
    • 간호행정학회지
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    • 제21권5호
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    • pp.501-510
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    • 2015
  • Purpose: The purposes of this study were to identify the effects of social support, resilience, stress and satisfaction in major on the happiness index of nursing students. Methods: Data were collected from March 16 to April 10, 2015 through a self-report questionnaire survey. Participants were 205 students in three different nursing colleges located in Busan and Yangsan. Measured variables were social support, resilience, stress, satisfaction in major and Happiness index. Results: Social support, resilience, satisfaction in major, and personal relationships had significant positive effects on the happiness index, while stress had a negative effect on the happiness index. Explained variance for the happiness index was 46% and social support was the most significant factor in the happiness index of nursing students. Conclusion: The results from this study suggest that resilience, social support, stress, satisfaction in major, and personal relationships should be considered as the main influential factors when developing intervention strategies to increase of the happiness index of nursing students.

Exploring Stock Market Variables and Weighted Market Price Index: The Case of Jordan

  • ALADWAN, Mohammad;ALMAHARMEH, Mohammad;ALSINGLAWI, Omar
    • The Journal of Asian Finance, Economics and Business
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    • 제8권3호
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    • pp.977-985
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    • 2021
  • The main aim of the study is to provide empirical evidence about the association between stock market exchange data and weighted price index. This research utilized monthly reported data from the Amman stock exchange market (ASE) and the Central Bank of Jordan (CBJ). The weighted price index was employed as the dependent variable and the independent variables were weighted price index (WPI), turnover ratio (TOR), number of trading days (NTD), price-earnings ratio (PER), and dividends yield ratio (DY). The time period of the study was from January 2015 to October 2020. The study's methodology follows a quantitative approach using the multiple regression method to test the hypotheses of the study. The final results of the study provided conclusive evidence that the market-weighted price index is strongly and positively correlated to three predetermined variables, namely; turnover ratio, price-earnings ratio, and dividend yield but no evidence was obtained for the effect of the number of trading days. The finding of the current study proved that the market price index is not only influenced by macro factors, but also by other variables assumed to not beneficial for the judgment of price index movements.

전력산업의 온실가스 배출요인 분석 및 감축 방안 연구 (Decomposition Analysis of CO2 Emissions of the Electricity Generation Sector in Korea using a Logarithmic Mean Divisia Index Method)

  • 조용성
    • 한국기후변화학회지
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    • 제8권4호
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    • pp.357-367
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    • 2017
  • Electricity generation in Korea mainly depends on thermal power and nuclear power. Especially the coal power has led to the increase in $CO_2$ emissions. This paper intends to analyze the current status of $CO_2$ emissions from electricity generation in Korea during the period 1990~2016, and apply the logarithmic mean Divisia index (LMDI) technique to find the nature of the factors influencing the changes in $CO_2$ emissions. The main results as follows: first, $CO_2$ emission from electricity generation has increased by $165.9MtCO_2$ during the period of analysis. Coal products is the main fuel type for thermal power generation, which accounts about 73% $CO_2$ emissions from electricity generation. Secondly, the increase of real GDP is the most important contributor to increase $CO_2$ emissions from electricity generation. The carbon intensity and the electricity intensity also affected the increase in $CO_2$ emission, but the energy intensity effect and the dependency of thermal power effect play the dominant role in decreasing $CO_2$ emissions.

The Effect of Ethnic Identification and Social Group Affiliation on Body Image Satisfaction among Asian-American College Students

  • Lee, Yoon-Jung
    • International Journal of Human Ecology
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    • 제8권1호
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    • pp.9-18
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    • 2007
  • This study focuses on the relationship between ethnic identity of Asian-Americans and their appreciation of their ethnic body features, based on reference group theory. A convenience sample of 60 male and 52 female students from various Asian ethnicities attending a mid-western university was used for the study. A 2 (gender) by 2 (ethnic identification) by 2 (socializing group) analysis of covariance (ANCOVA) on body image satisfaction as dependent variable and Body Mass Index score as a covariate was conducted. A significant main effect of ethnic identification was found, which indicates the more respondents identified with their ethnic group, the more likely they were to be satisfied with their appearance. The social group affiliation main effect was not significant. The impact of ethnic identification was significant only for those respondents who socialize more with Americans than with Asians. The results support the idea that one's ethnic group functions as a reference group, which influences body image appraisals.

체중조절 식이에서 탄수화물의 비중 : 그 질과 양 (A Minireview on Carbohydrate in Weight Management Diet : The Quantity and the Quality)

  • 이명종;김호준
    • 한방비만학회지
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    • 제5권1호
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    • pp.121-131
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    • 2005
  • During last few decades dietary guidelines for the weight management mainly have focused on a low-fat, high carbohydrate diet. Carbohydrate was supposed to be low-dense, highly satiating as well as it affects little on the lipogenesis. Although low-fat diet has significant weight-reducing effect, the loss was modest and usually regained after cessation of the diet. Furthermore, low-fat, modest-carbohydrate diet did not impact on the ever increasing rates of overweight and obesity. Alternative approaches include low-carbohydrate diet, high-carbohydrate diet and low-glycemic index diet. Although none of above mentioned diet have sufficient evidence for standard weight management diet, short-term efficacy and safety are being approved continuously. Low-carbohydrate diet contains less than 45% of carbohydrate in daily energy consumption, it is claimed to have more satiating effect and to improve metabolism. However, low compliance due to the limitation of food choice should be considered on prescribing the diet. High-carbohydrate which contains 90% of carbohydrate in total daily energy consumption, is effective in providing satiety and lowering total calorie intake and cholesterol. On the other hand, nutritional unbalance should be took into account. Low-glycemic index diet is based on the theory that contemporary diet contains significantly less fiber and unrefined carbohydrate, therefore insulin secretion is disturbed. Because low glycemic index food slowly increase blood glucose and insulin level, it induces much satiating effect and may decrease calorie ultimate intake. However, poor standardization of glycemic index is one of the main obstacle for the diet to be applied in the clinic. Meanwhile, high fructose food and beverage should be discouraged because it has little satiating effect and may cause insulin resistance. High fiber food is another recommendation for healthy, lean diet.

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독거 여자노인의 식품공급프로그램 실시 후 음식섭취빈도, 식태도 및 영양위험정도 변화 (The Changes of Dish Consumption Frequencies, Dietary Attitudes and Health-Nutrition Risk for Single Living Female Elderly on Food-Aid Program)

  • 손숙미;박진경
    • 대한영양사협회학술지
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    • 제11권3호
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    • pp.286-298
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    • 2005
  • This study aimed to estimate the effect of the home based food supplying program in single living female elderly on the basis of depression, Health and Nutrition Risk Index, dietary attitude and dish consumption frequencies. The Food Supplying Program was carried out for 8 months for 27 single living female elderly from lower income status in Bucheon city. Main supplied foods were consisted with soymilk, vegetables, fruits and fish. The effect of the food supplying program were analyzed for 22 elderly who completed the program (group supplied with food : GSF) compared to the group not supplied with food (GNSF). The results of this study were as follows: Degree of depression estimated with depression score and Health-Nutrition Risk Index were decreased and the scores of dietary attitude and behaviors were increased for GSF after 8 months. However these improvements were not shown in the GNSF. GSF showed significantly increased consumption frequencies in soybean milk, tangerine, stir fried anchovy and yogurt, where as GNSF was observed with the decreasing trend in most of the dishes. In conclusion, home based food supplying program for single living female elderly not only increased the consumption frequencies of some dishes but also improved depression rate, Health and Nutrition Risk Index and dietary behavior concomitantly.

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프로그램매매 중단장치가 차익거래종목과 비차익거래종목의 정보비대칭에 미치는 영향 (Effects of Program Trading Halts on Information Asymmetry : Program Trading Stocks, Index Arbitrage Stocks, and Non-index Arbitrage Stocks)

  • 박종원;엄윤성;장욱
    • 재무관리연구
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    • 제26권3호
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    • pp.65-101
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    • 2009
  • 본 연구에서는 한국거래소 내 유가증권시장의 1999년부터 2004년까지의 일중 거래자료에 기초한 프로그램매매종목과 차익거래종목, 그리고 비차익거래종목의 스프레드와 프로그램매매포함횟수의 변화를 분석하여 한국유가증권시장의 프로그램매매중단장치인 사이드카가 정보비대칭을 해소하는 역할을 하는지를 검증하였다. 본 연구의 주요결과를 요약하면 다음과 같다. 첫째, 사이드카 발동 이후 프로그램매매종목의 스프레드가 감소하는 것으로 나타나 사이드카가 정보비대칭을 부분적으로 완화시키는 효과가 있는 것으로 나타났다. 둘째, 사이드카 발동 이후 프로그램매매종목에 나타나는 정보비대칭의 해소효과는 매수프로그램매매종목에 국한하여 나타나는 결과이다. 셋째, 차익거래와 비차익거래에 미치는 효과를 분석한 결과는 사이드카의 발동이 차익거래뿐만 아니라 비차익거래 종목의 스프레드를 줄여 정보비대칭을 해소하는 효과를 가짐을 보여준다. 넷째, 프로그램매매종목에서와 마찬가지로 차익거래와 비차익거래 종목에 나타나나는 정보비대칭해소효과는 매수차익거래와 매수비차익거래에 국한하여 나타난다. 마지막으로 사이드카 발동 전후 각 표본의 프로그램매매 포함횟수의 변화를 분석한 결과에 의하면, 각 표본종목이 프로그램매매에 포함된 횟수는 사이드카 발동 이후에 대부분 증가하는 것으로 나타나, 사이드카 발동에 따른 매매중단기간 동안 정보비대칭이 충분히 해소되지 못하며 사이드카 발동을 가져온 가격의 급등락에 관련된 뉴스가 사건이후에도 지속적으로 영향을 미침을 보여준다.

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The Impacts of the COVID-19 Pandemic on the Movement of Composite Stock Price Index in Indonesia

  • ZAINURI, Zainuri;VIPHINDRARTIN, Sebastiana;WILANTARI, Regina Niken
    • The Journal of Asian Finance, Economics and Business
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    • 제8권3호
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    • pp.1113-1119
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    • 2021
  • This study aims to determine the impact of the news coverage of the COVID-19 pandemic on the composite stocks' movement (IHSG) in Indonesia. This study used secondary data of daily time series with an observation range of March 2020-June 2020. This study used three main variables, namely, COVID-19 news, the daily price of a composite stock market index (IHSG), and interest rate. This study clarifies pandemic news into two forms to facilitate quantitative analysis, namely, good news and bad news. Both pandemic news conditions, which have been clarified, are then processed into the index and reprocessed along with two other variables using vector autoregressive (VAR). The results showed that the good news have a dominant effect on developing the composite stock price index (IHSG) in Indonesia during the COVID-19 pandemic. Although the good news dominates the composite stock price index (IHSG) movement in Indonesia, the bad news must also be anticipated. By implementing a series of macroeconomic policies that follow the conditions of the composite stock price index (IHSG) movements on the stock exchange floor, the bad news response can decrease the potential for a decline in investor confidence, so that the financial system's macroeconomic stability is maintained.