• 제목/요약/키워드: Panel Decision

검색결과 179건 처리시간 0.023초

퍼지 논리 제어를 기반으로 한 2축 태양광 추적시스템에 관한 연구 (A Study on a Two-Axis Solar Tracking System Based on Fuzzy Logic Control)

  • 안병원;이희배;배철오
    • 해양환경안전학회지
    • /
    • 제21권5호
    • /
    • pp.531-537
    • /
    • 2015
  • 태양광 패널로부터 출력을 최대로 얻기 위해서는 신뢰성이 높은 태양광 추적 장치가 설계되어야 한다. 본 논문에서는 LabVIEW 프로그램을 이용하여 퍼지 제어를 기반으로 구현한 2축 태양광 추적 장치 시스템을 제작하여 그 성능에 대해서 알아보았다. 태양광 패널의 움직임을 제어하기 위한 구현된 퍼지 의사결정 시스템의 사용자 인터페이스를 통하여 모든 파라미터를 제어하고 확인할 수 있는 지능제어기와 기계적인 구동부분의 설계가 연구의 중심이 되고 있다. 실제 태양광 추적시스템을 개발하여 환경, 날씨, 계절 및 빛 상태와 같은 영향에 대해서 분석하였다. 태양광 추적장치는 실제 상황에서 시험하였고 시스템 동작과 관련된 모든 변수들은 기록되고 분석되었다. 제안한 태양광 추적시스템을 활용할 경우 고정식 패널에 비해 날씨에 따라 다르지만 최대 약 38% 정도의 더 높은 효율을 얻을 수 있어 자동으로 추적할 때 매우 좋은 결과를 얻을 수 있었다.

Panel Session toward Improved Communication and Engagement with the Public after the Fukushima Daiichi Nuclear Power Plant Accident: Study Reports and Discussion with Specialists from Relevant Fields

  • Yoshida, Hiroko;Kuroda, Yujiro;Kono, Takahiko;Naito, Wataru;Sakoda, Akihiro
    • Journal of Radiation Protection and Research
    • /
    • 제46권3호
    • /
    • pp.134-142
    • /
    • 2021
  • Background: From 2018 to 2020, the Expert Study on Public Understanding after the Fukushima Daiichi Nuclear Power Plant Accident (the Expert Study Group) identified and analyzed activities designed to promote public understanding of science and radiation since the Fukushima accident, and held discussions on how to achieve public understanding in the situation where public confidence has been lost, and how experts should prepare for dealing with the public. This panel session was held at the 53rd meeting of the Japan Health Physics Society on June 30, 2020. Materials and Methods: First, three subgroup (SG) leaders reported their research methods and results. Then, two designated speakers, who participated as observers of the Expert Study Group, commented on the activities. Next, the five speakers held a panel discussion. Finally, the rapporteur summarized. Results and Discussion: SG leaders presented reports from researchers and practitioners in health physics and environmental risks who provided information after the Fukushima accident. During the discussion, experts in sociology and ethics discussed the issues, focusing on the overall goals of the three groups, local (personal) and mass communication, and ethical values. Many of the activities instituted by the experts after the accident were aimed at public understanding of science (that is, to provide knowledge to residents), but by taking into account interactions with residents and their ethical norms, the experts shifted to supporting the residents' decision-making through public engagement. The need to consider both content and channels is well known in the field of health communication, and overlaps with the above discussion. Conclusion: How to implement and promote the public engagement in society was discussed in both the floor and designated discussions. Cooperation between local communities and organizations that have already gained trust is also necessary in order to develop relationships with local residents in normal times, to establish an information transmission system, and to make it work effectively.

Consumer perception of marbling and beef quality during purchase and consumer preferences for degree of doneness

  • Hakan Benli;Duygu Gecgel Yildiz
    • Animal Bioscience
    • /
    • 제36권8호
    • /
    • pp.1274-1284
    • /
    • 2023
  • Objective: Understanding consumer perception of meat quality in developing countries is an important issue since consumer perception of quality could be highly variable. In the current study, consumers' purchasing preferences affected by marbling and perception of quality were evaluated in a survey study. Furthermore, consumers' preferences for degree of doneness were investigated using both survey and consumer panel studies. Methods: The study was carried out in two phases. Firstly, a survey was conducted in Adana Province, Turkey to collect data related to the attributes affecting consumers' meat purchase decision and consumers' degree of doneness preferences. In the second phase, boneless ribeye was used to investigate consumers' degree of doneness preferences in a consumer panel. In addition, proximate analyses of the samples were conducted. Results: The survey study using pictures of marbling illustrations indicated that higher degrees of marbling might be considered too fatty to be purchased by consumers. Consumers' perceptions regarding the relationship between marbling and beef quality further indicated that marbling might not be acknowledged as a cue of a higher quality meat. Nevertheless, the results of the importance of some attributes related to intrinsic and extrinsic quality cues showed that consumers were looking for the cues that indicated not only quality but also safety of the meat during meat purchase. The results of both survey and consumer panel studies revealed that consumers might prefer higher degrees of doneness while consuming meat since a majority of the consumers' preference of degree of doneness was at least well done. Conclusion: This study revealed that consumer purchasing preferences might vary between countries regarding marbling and perception of quality. Furthermore, higher degrees of doneness could be the preference of these consumers. Thus, further studies are needed to increase consumer satisfaction in these countries.

Explaining Dividend Payout: Evidence from Malaysia's Blue-Chip Companies

  • CHE-YAHYA, Norliza;ALYASA-GAN, Siti Sarah
    • The Journal of Asian Finance, Economics and Business
    • /
    • 제7권12호
    • /
    • pp.783-793
    • /
    • 2020
  • This research investigates the explanatory factors governing the dividend payout to shareholders of blue-chip companies listed on Bursa Malaysia. In spite of continuous attention offered by empirical research on dividend payout of publicly-listed companies, paradoxically only few studies exclusively examined the explanatory factors from the perspective of blue-chip companies. Recognizing the capability of blue-chip companies to serve as a stalwart indicator of stock market condition as well as a consistent income source to shareholders, more research should be carried out for better inference on the companies' dividend payout decision. This research is using 522 observations from a sample of 18 Malaysian blue-chip companies over a 29-year period (1990 to 2019) and utilizes a panel data regression analysis for the estimation of the impact of eight factors, namely, systematic risk, leverage, free cash flow, lagged dividends, market-to-book value, profit growth, total asset turnover, and company size. Measuring dividend payout using two specifications (dividend/earnings and dividend/total assets), this research reveals that systematic risk and free cash flow have a significant and negative impact on dividend payout. Meanwhile, past year dividends, market-to-book value, profit growth, total asset turnover and company size have a significant and positive impact on dividend payout.

중권중재와 징벌적 손해배상책임 -미국 판례의 변화를 중심으로- (Punitive Damages in Securities Arbitration Awards)

  • 한철
    • 한국중재학회지:중재연구
    • /
    • 제14권2호
    • /
    • pp.107-133
    • /
    • 2004
  • In these days, arbitration helps alleviate some of the burden of a heavy caseload from the judiciary and is a viable method to resolve disputes in a relatively quick and efficient manner. An award of punitive damages is often the most significant and detrimental part of an award arising from a judicial or arbitral proceeding. In 1995, the United States Supreme Court resolved a circuit split. upholding an arbitral panel's authority to award punitive damages under a securities arbitration agreement. This decision was monumental in establishing arbitral power. However, it left several questions unanswered. For example, which, if any, standards should be applied to such awards? The decision in Sawtelle, adopting a separate ground for review of punitive damages awards, is one that signals a significant change in the field of arbitration. This article addresses the reviewability of punitive damages awards arising out of a securities arbitration hearing. It would be necessary to introduce securities arbitration system to our disputes resolution system. Compared to American practices, there could be many differences in recognition on arbitration and legal structure in our country. Thus it will be a future assignment to consider seriously and carefully what kind of securities arbitration system will be proper for us. This article analyzed predispute arbitration agreements and agreements to arbitrate after a dispute has already arisen.

  • PDF

정보탐색과 구매결정에 있어서 채널이동 소비자들에 대한 연구 (A Study on Consumer's Channel Transition Behavior in the Information Search and Purchase Channel)

  • 채진미
    • 한국의류산업학회지
    • /
    • 제21권6호
    • /
    • pp.743-753
    • /
    • 2019
  • This study investigates differences in demographic characteristics, shopping orientation, perceived risk, and satisfaction after purchase among consumer types. This study classifies consumer types according to their channel transition behaviors between the online and offline channels with a focus on the steps of information research and buying decision in buying decision-making process. The four consumer groups are as follows: off-off type (offline research-offline purchase), on-on type (online research-online purchase), on-off type (online research-offline purchase) and on/off-off type (online and offline research-offline purchase), off-on type (offline research-online purchase) and on/off-on type (online and offline research-online purchase). Data were collected from adults over 20 years old who had bought clothes within one year. The questionnaire was carried out from July, 2019 using a professional internet research panel; in addition, 500 sets of useful data were analyzed by descriptive statistics, factor analysis, reliability analysis, chi-squared test, ANOVA and Duncan-test using SPSS 21.0. The findings showed significant differences among the classified consumer groups for consumer demographics, shopping orientation, perceived risk, and purchase after satisfaction. The results imply that consumers show a variety of channel transition behaviors based on demographic variables, shopping orientation, and perceived risk. Understanding and adapting to consumer purchase behaviors will allow company distribution channels to be effectively managed and eventually increase consumer satisfaction as well as company sales volume.

데이터마이닝 기법을 활용한 아동의 스트레스 유형별 관련변수 비교 (A Comparison of Related Variables According to Children's Stress Types Using the Data Mining Method)

  • 이혜주;정의현
    • 아동학회지
    • /
    • 제33권2호
    • /
    • pp.111-127
    • /
    • 2012
  • This study compared a number of related variables according to children's stress types using the data mining method. The sample population was taken from the Korean Youth Panel Survey (KYPS) data (2688, sixth-grade elementary students). The results of the decision tree model revealed that : (1) Parental expectations in terms of study, life satisfaction, self-esteem, parental attachment, aggression, the spousal relationship, other cognition (one's own misdeeds), and study related worries were all related to parent stress. (2) Life satisfaction, study related worries, admitting one's own misdeeds, gender, other cognition (one's own misdeeds), aggression, the spousal relationship, and a sense of alienation in the school were all related to appearance stress. (3) Study related worries, parental expectations in terms of study, aggression, life satisfaction, self-esteem, parental attachment, satisfying parental expectations, parental attachment, and teacher attachment were all related to academic stress. (4) A sense of alienation in the school, mixing with peers in the school, aggression, self-esteem, other cognition (one's own misdeeds), study related worries, parental abuse, and life satisfaction were all significantly related to friend stress. These results suggested that children's diverse conditions should be considered according to the stress types if we are to understand and cope with these stress types more efficiently.

Factors Affecting Corporate Investment Decision: Evidence from Vietnamese Economic Groups

  • PHAN, Duong Thuy;NGUYEN, Ha Thi
    • The Journal of Asian Finance, Economics and Business
    • /
    • 제7권11호
    • /
    • pp.177-184
    • /
    • 2020
  • This paper analyzes factors affecting corporate investment decisions in economic groups listed on the Vietnam stock market. The panel data of the research sample includes 39 economic groups listed on the Vietnam stock market from 2009 to 2019. The Generalized Least Square (GLS) is employed to address econometric issues and to improve the accuracy of the regression coefficients. In this research, the investment rate is a dependent variable. Cash-flow (CF), Investment opportunities (ROA), Fixed capital intensity (FCI), Leverage (LEV), Sales growth (GR), Size (SZ), Business risk (RISK) are independent variables in the study. The model results show that cash flow and sales growth have the same impact on investment decisions of economic groups in Vietnam. In addition, investment opportunities have a negative impact on the capital investment decisions of economic groups. The remaining factors include fixed capital intensity, leverage, firm size, and business risks that have a weak and insignificant impact on capital investment decisions of economic groups in Vietnam. The findings of this article are useful for business administrators, and helping business managers make the right financial decisions. Besides, the research results are also meaningful to money management agencies. The authors recommend that the State Bank of Vietnam should maintain a sustainable monetary policy.

The Effect of Ownership Structure of Initial Public Offerings (IPOs) on Dividend Initiation: A Case Study in Malaysia

  • DWAIKAT, Nizar;QUEIRI, Abdelbaset;QUBBAJ, Ihab Sameer
    • The Journal of Asian Finance, Economics and Business
    • /
    • 제8권4호
    • /
    • pp.317-328
    • /
    • 2021
  • This study aims to determine the factors that affect dividends initiation by initial public offering firms in Malaysia. The ownership structure is examined from a corporate governance theoretical perspective in order to evaluate the impacts of managerial, institutional, and family ownership on the dividend's initiation decision of IPO firms. This study employs a quantitative pooled cross-section of 372 Malaysian IPO companies active during the period of 2002-2013. The number of firms that went public each year varies, thus the pooled cross-section data takes place in this case rather than the panel data. The logistic model was employed to test the proposed hypotheses. The results revealed that the presence of institutional investors in the ownership structure make it more likely for IPO firms to initiate dividends. On the contrary, the presence of a family ownership structure in IPO companies as the controlling shareholder makes these companies less probable to initiate dividends. Managerial ownership was found to have no effect on the decision of initiating dividends by IPO firms. The findings of this study suggest that the existence of institutional and family ownerships are agency cost mitigators, as these ownership types could prompt IPOs firms to initiate dividends to overcome the agency conflicts.

한국기업의 자본재조정이 자본구조 의사결정과 기업가치에 미치는 영향분석 (The effect of recapitalization on capital structure decision and corporate value in Korean Firms)

  • 김주열;김동욱;김병곤
    • 한국산학기술학회논문지
    • /
    • 제18권4호
    • /
    • pp.163-174
    • /
    • 2017
  • 본 연구에서는 부채조달 없이 자본재조정을 실행할 수 있는 수단들에 초점을 맞추어 자본재조정이 자본구조 의사결정과 기업가치에 미치는 영향을 분석하였다. 이를 위해 자본재조정 수단들을 자본재조정 실행시 기업의 자본구조에 미치는 영향에 따라 부채비율 상승형(유상감자, 현금배당), 부채비율 불변형(무상감자, 자사주 소각), 부채비율 하락형(전환사채, 신주인수권부사채, 교환사채, 스톡옵션 등의 권리행사) 등으로 구분하여 자본재조정 실행이후에 기업의 자본구조 의사결정과 기업가치에 미치는 영향을 분석하였다. 분석을 위해서는 한국거래소의 유가증권시장과 코스닥시장에 상장되어 있는 총 22,814개 연도-기업 자료가 사용되었다. 분석방법으로는 패널자료를 이용한 2SLS법이 사용되었다. 실증분석 결과는 첫째, 기업이 부채비율 상승형 자본재조정을 실시하면 부채비율이 상승하여 재무구조가 악화되기 때문에 다음 기에는 부채비율을 낮출 수 있는 자본구조 의사결정을 하게 되고, 이러한 재무건전성을 추구하는 자본구조 의사결정은 시장으로부터 긍정적인 평가를 받게 되어 기업가치가 증가한다는 것을 확인하였다. 둘째, 부채비율 불변형 자본재조정은 기업의 자본구조 의사결정에는 영향을 미치지 않지만, 기업가치에는 정(+)의 영향을 미친다는 것을 알 수 있었다. 셋째, 기업의 부채비율 하락형 자본재조정이 실행되면 다음 기에는 부채를 확대하는 자본구조 의사결정이 선택되고, 이러한 부채 확대정책은 기업가치에 긍정적으로 영향을 미친다는 것을 알 수 있었다. 결론적으로 부채비율 상승형 자본재조정과 부채비율 하락형 자본재조정은 기업의 자본구조 의사결정에 영향을 미치고, 이렇게 결정된 자본구조 의사결정은 기업가치에 긍정적인 영향을 미친다는 것을 알 수 있었다.