• Title/Summary/Keyword: Effect study

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A Study on Perception and Reaction of Ground Effect during Landing of Large Airplanes (대형기 착륙과정의 지면효과에 대한 인식과 대응에 관한 연구)

  • Moon, Bong-Sup;Choi, Youn-Chul
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.26 no.1
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    • pp.1-9
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    • 2018
  • Ground effect includes a reduction of induced drag, increase of lift, and nose-down moment during landing. These phenomena, occurring late in the landing maneuver, are considered to be of little significance because they tend to counteract and/or compensate in this respect. Even though it is unlikely to affect any flare profile variations appreciably, some pilots have reversed perception about such phenomenon and overestimate during landing. It is becoming a negative factor and is making an adverse effect on landing maneuver. This study examines the perception of ground effect of large aircraft pilots, reviews literature regarding ground effect, and makes suggestions that pilots can correctly recognize and respond to the effect during landing flare maneuvers.

The Study of Suit Design and Materials for Middle-aged Men′s Visual Effect (중년남성 시각효과를 위한 수트디자인과 소재연구)

  • 박순천
    • Korean Journal of Human Ecology
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    • v.4 no.2
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    • pp.123-140
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    • 2001
  • The purpose of this study is to find the suitable suit design of mid-aged men by examining visual effects in Physical and Psychological side aspects. I used convenience sampling by considering sex and age distribution. These methods were used to analyze data that were frequency analysis, variate analysis, centesimal scale, primary factor analysis, three primary variate analysis, duality variate analysis, equation variate analysis and Cronbach's multiplex range verification 1. Image perception of men's suit was analyzed with arrangement, numbers of button, pattern and the shape of one's body and was divided into charming, youthfulness, modernism. affection and manly. 2. 1) There are partly resemblance difference in physical visual effect by the shape of body and suit design. 2) There are partly resemblance differences in psychological visual effect by one's shape and suit design. In conclusion arrangement, number of button and Pattern are very important to give an effect on whole visual effect man's suit. Also, these were felt differently in each types of body Therefore it is confirmed that the type of body is important fluent to make people perceive.

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Cooling perfermance of micro-impinging jet (마이크로 충돌제트에서의 냉각 특성)

  • Hong, Bong-Hwan;Hwang, Sang-Dong;Cho, Hyung-Hee
    • Proceedings of the KSME Conference
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    • 2003.04a
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    • pp.1717-1723
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    • 2003
  • Experimental study is conducted to investigate the cooling performance of impinging jet from microtube using Joule-Thomson effect to apply practical applications. And also the heat transfer characteristics of a impinging jet itself and the impinging jet with Joule-Thomson effect are tested to make a comparative study of the two different general ideas. For this propose, two kinds of copper microtubes which have 200 tim and 300 tim in inner diameter respectively were tested and $N_2$ was used as a working fluid. In case of impinging jet without Joule-Thomson effect, heat transfer coefficients distributions were similar to those of normal impinging jet. But in impinging jet with Joule-Thomson effect, the heat transfer coefficients decrease as jet-to-surface increases contrary to the case of the normal jet. As a result, much higher heat transfer coefficients are obtained with Joule-Thomson effect than those of the normal jet without J-T effect.

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Determinants of the Brand Loyalty of Trade Shows (무역전시회(Trade Show)의 브랜드충성도 결정요인에 관한 연구)

  • Lee, Chang-Hyun;Kim, Soo-Kyung
    • International Commerce and Information Review
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    • v.9 no.2
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    • pp.141-160
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    • 2007
  • Though the brand management of trade shows are increasingly important, there are few studies with this theme. This research studies what factors have an effect on the brand loyalty of trade shows. To this purpose, we conduct empirical study on the relationship among perceived quality, perceived value, image of the trade show with attendee's satisfaction and loyalty of trade show. The results of this study are as follows: (1) Perceived quality has a direct effect on perceived value and satisfaction of trade show and indirect effect on attendee's loyalty of the trade show. (2) Perceived value has a direct effect on attendee's satisfaction and indirect effect on attendee's loyalty of the show. (3) Trade show image has a direct effect on perceived value, attendee's satisfaction and loyalty of the trade show. Especially, image has the greatest effect on attendee's satisfaction and loyalty of the show. This means that the trade show image a critical variable in the brand management of the show.

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The effect of the variables with the exception of $\beta$ on and abnormal phenomenon of the stockmarket in CAPM (CAPM에서 $\beta$계수이외의 변수가 시장의 이상현상에 미치는 영향)

  • 이재범
    • Journal of the Korea Safety Management & Science
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    • v.1 no.1
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    • pp.231-239
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    • 1999
  • CAPM explains the rate of return for the risk asset by $\beta$, systematic risk. There are some assumption in CAPM. But CAPM can not explain the movement of stock price sufficiently due to limitation of the assumptions. Therefore many scholars study which variables with the exception of $\beta$ effect on the rate of return of risk asset for supplementing this limitation by using PER, size of firm etc.. But it will be natural that PER, size of firm etc. to be determinant factors of $\beta$ also effect on the abnormal rate of return, because PER, size of firm etc. used in their studies already effect on determination of $\beta$, . That is, the determinant factors of $\beta$ effect on determination of abnormal rate of return according as $\beta$, effects on abnormal rate of return. Therefore, this study tests empirically how the determinant factors of $\beta$, effect on determination of$\beta$, ,and how $\beta$ and the determinant factor of $\beta$ effect on the abnormal rate of return in CAPM.

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An Experimental Study on Some Effects of SOEUMIN-HYANGSAYANGYUI-TANG (소음인향사양위탕(少陰人香砂養胃湯)의 효능(效能)에 관(關)한 실험적(實驗的) 연구(硏究))

  • Kim, Kyung-Yo
    • Journal of Sasang Constitutional Medicine
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    • v.1 no.1
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    • pp.153-170
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    • 1989
  • We have studied some effects of the SOEUMIN-HYANGSAYANGYUI-TANG (S.H.Y.) on the C.N.S. and on the intestines. Several empirical remarks, depending on the different treatments, are investigated throughout this study as follows; 1) The treatment, using atropine bromide, represses the effect of the S.H.Y. on the contractive force of intestines. 2) The treatment, using pheniramine maleate, seems not be able to repress the effect of the S.H.Y. on the contractive force of intestines. 3) The treatment, using cyproheptadine, seems not be able to repress the effect of the S.H.Y. on the contractive force of intestines. 4) The analgesic effect as well as the antipyretic effect are remarked while the acetic acid is applied. 5) The suppressive action on the convulsion, induced by strychine, is not observed. However the significant effect on the convulsion induced by picrotoxin is remarked. 6) The sedactive effect of the S.H.Y., using the Rotor rod test, is not obviously observed.

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A Study of the Visual Effects and Functional Effect by Variations in Location of the Waist Line of Slacks (슬랙스의 waist line 위치변화에 따른 시각적 효과와 착용감)

  • Kim, Ye-Kyung;Lee, Young-Joo
    • Korean Journal of Human Ecology
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    • v.15 no.5
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    • pp.811-821
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    • 2006
  • The purpose of this report was to study visual effect and functional effect of waist line location of slacks for females in 20'. 1. Differences of visual effect of slacks waist line change to be expressed that mature, sexual and casual slacks waist line were W4 or W5, looks like long leg and mature and formal slacks waist line was W1, slim lower part of the body and flat slacks waist line was W4. 2. Analysis result of functional effect difference with the location variation of slacks waist line were as follows. In all motions(M1, M2, M3, M4) W2 that downed 7cm-6cm-6cm from natural waist line was valued as the most comfortable, W1 and W5 were valued as discomfortable, where waist line was too high or too low.

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The Effect of Set Configuration on the Choice of Brand - Focusing on the Moderating Effects of Promotion Type - (선택구조가 브랜드선택에 미치는 영향 - 프로모션 유형의 조절효과를 중심으로 -)

  • Kim, Yong-Ho;Kim, Sook-Hee;Song, Kyung-Soo
    • Management & Information Systems Review
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    • v.34 no.2
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    • pp.97-111
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    • 2015
  • A preliminary study on the existing attraction effect and compromise effect was started on the experiment studies about product or service and conducted on the empirical studies on things, research trips, staff recruitment process in the research and the actual US presidential election. However most studies have been limited in the theories of the frequency range and no research about combining compromise effect and attraction effect with the types of promotion. The purpose of this study verifies that how attraction effect and compromise effect in the choice option of the choice process for brand varies according to the types of promotion. This study compares the difference of choice of brand between the influence of the attraction effect and compromise effect. The independent variables among the manipulated variables are as follows : (1) Brand choice (attraction effect and compromise effect), (2) Promotion Type (price promotion/non-price promotion). This study was manipulated in between-subjects design and within-subjects design. The results of this study will be able to see the implications for the positioning strategy of offering several new products such as practical dimensions of promotion strategy because the entry of new brands rather increases market share of similar existing brands.

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A Study on the Illusory Correlation Effect of Clothing Style(I)

  • Lim, Sun-Hee;Kim, Jin-Goo
    • The International Journal of Costume Culture
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    • v.4 no.2
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    • pp.159-164
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    • 2001
  • Illusory Correlation Effect(ICE) is a cognitive error that arises from overestimating particular stimulus of an individual or a group. This may cause formation of stereotypes of the individual or the group and may also lead to generating various biased judgments. this study investigated the Illusory Correlation Effect of clothing style and considered the effect of Preview information. The results Provided evidence for the existence of an illusory correlation between a wearer and clothing style. Also, an illusory correlation was influenced information of stimuli attributes. This implies subjects perceived stimuli more distinctively when previous information was provided.

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A Study on Consumer Information Search and Consumer Satisfaction According to Product Characteristics (상품특성별 소비자 정보탐색정도의 소비자만족도에 관한연구)

  • 김윤정
    • Journal of Families and Better Life
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    • v.11 no.1
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    • pp.12-21
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    • 1993
  • This Study focused on consumer information search and consumer satisfaction according to product characteristics and sex. For these purpose a survey was conducted using questionaires on 225 males 299 females that lived in Seoul. Statistics used for data were Frequency. Prequency. Percentile Mean Multiple Regression Analysis and Path Analysis. The major findings were: 1) I male Group reference orientation were effect on convenience experience credience goods and information search were effect on experience credience goods. 2) In Femal Group her job and information search effect on convenience experience credience goods and involvement effect on credience goods only.

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