감성모델링 기법 차이에 따른 휴대전화 고급감 모델의 비교 평가

김인기,윤명환,이철,Kim, In-Gi,Yun, Myeong-Hwan,Lee, Cheol 대한인간공학회 2006 大韓人間工學會誌 Vol.25 No.2

This study aims to compare and contrast the Kansei modeling methods for building a luxuriousness model that people feel about appearance of mobile phones. For the evaluation based on Kansei engineering approaches, 15 participants were employed to evaluate 18 mobile phones using a questionnaire. The results of evaluation were analyzed to build luxuriousness models through quantification I method, neural network, and decision tree method, respectively. The performance of Kansei modeling methods was compared and contrasted in terms of accuracy and predictability. The result of comparison of modeling methods indicated that model accuracy and predictability was closely related to the number of variables and data size. It was also revealed that quantification I method was the best in terms of model accuracy while decision tree method was the best modeling method with small variance in terms of predictability. However, it was empirically found that quantification I method showed extremely unstable predictability with small number of data. Consequently, it is expected that the research findings of this study might be utilized as a guideline for selecting proper Kansei modeling method.

설계경기 - 울산과학기술대학교 첨단생체소재연구센터

김인기,Kim, In-Gi 대한건축사협회 2012 建築士 Vol.2012 No.4

악취 또는 VOCs를 제거할 수 있는 필터 기술

김인기,Kim, In-Gi 한국공기청정협회 2008 空氣淸淨技術 Vol.21 No.4

산업용 클린룸 유해가스 제거 기술동향 - 케미컬 필터를 이용한 클린룸 내부 오염가스 제거 기술

김인기,윤성진,Kim, In-Gi,Yun, Seong-Jin 한국공기청정협회 2018 空氣淸淨技術 Vol.31 No.4

우리나라 석탄자원의 개발현황

김인기,Kim, In-Gi 한국과학기술단체총연합회 1982 과학과 기술 Vol.15 No.3

알기쉬운 재료학-버터

김인기,Kim, In-Gi 대한제과협회 1996 베이커리 Vol.11 No.-

국내은행 인터넷 뱅킹의 효율성 격차 결정요인 분석에 관한 연구

김인기(In Kie Kim),이기송(Gi Song Lee) 한국경영학회 2002 經營學硏究 Vol.31 No.6

The inputs of the Internet banking applied to this model include the reletive input index of the capital budget(ratio of Internet banking investment to total IT budget). the relative transformation index of physical abilities(unmber of Internet banking servers/physical costs) and the relative transformation index of personnel base expansion(number of Internet banking personnel/personnel expenses), while the outputs selected for the study comprises customer-related output indices(number of usages per registered Internet banking customer and number of certificates issued per register Internet banking customer) and bank-related output indices(weight of Internet banking transactions in asset balance and weight of Internet banking transactions in number of businesses handled). The following results results have obtained by analyzing these inputs and outputs using the DEA model. To analyze the acuses of the inefficiency of production structures in terms of terms of inputs and outputs, the subjects of the study were classified into four categories: ① banks that introduced Internet banking earlier/banks that introduced Internet banking later: ② banks that made large investments in Internet banking/banks that made small investments in Internet banking: ③ banks thet made intensive investments in Internet banking/banks that made diversified in vestments in Internet; and ④ banks with good operating results/banks with poor operating results. This is to see whther the prior occupation effect(①), the effect of CEO`s investment strategies(② and ③) and the difference in the management results between banks can be the causes of the differences in efficiency. The results can be summarized as follows in terms of the customers` and banks` standpoint. In the case of category ①. the efficiency gaps between banks in terms of the input-output structure from the standpoint of custrmers and banks could be caused by the differences in the technical efficiency rather than the efficiency of scale stemming from the prior occuparion effect. This outcome suggests that a preemptive and continuous construction of sercvice systems is critical to the introduction and expansion of the Internet banking business. In the case of category ②, the efficiency gaps between banks in terms of the input-output from the customer`s point of view could be caused by the differences in the technical dfficiency rather than the efficiency of scale brought by the effect of CEO`s investment strategies. In the case of category ③, the efficiency gape between banks in terms of the input-output structure from the standpoint of banks culd be caused by the differences in the pure technical efficiency rather than the efficiency of scale attributable to CEO`s investment strategies. The findings of ② and ③ suggest that CEO`s strategies are more inportant than anything else in the promotion of the Internet banking in the banks and, in particular, efforts are needed for the efficiency coming from the CEO`s ivestment strategies to be realized evenly in terms of both customers and banks. In the case of category ④, it was concluded that, in promoting the Internet banking, the differences in operating results between banks could not be regarded as factors hacving influence over the efficiency of the Internet banking. Further, additional studies may be needed to determine whether these analysis results come from the division and independence of the off-line production structure and the Internet banking production structure or whether the results can be attribted to the measurement errors in applying the standards when classifying the banks into banks with good performance and banks with poor performance.

검도 경기 시 머리치기 공격 성공 요인에 대한 운동학적 변인 분석

민창기(Min, Chang-Gi),김인기(Kim, In-Ki) 한국체육과학회 2012 한국체육과학회지 Vol.21 No.2

Mainly to analyse the biomechanical variables for the successful attack factors in Kumdo bouts. In this context, 34 games with 36 players, that were filmed by S-VHS video camera. The bouts included 34 games of 27 preliminary matches for National Kumdo Championship Tournament of President Cup held in November 2009 and final 7 games of the round of 8 groups. For game content analysis, attack frequency, success rate, failure rate, gain, and gain time by section were considered. Based on this condition, I analyzed the pace, speed, angle between bamboo sword and ground, angle speed of bamboo sword"s first part, and its movement, attack distance and stroke time that give impact on the outcome of the match when attacking head and wrist were analyzed. And for the evaluation of related factors in attacking movement, the regression analysis of logistics about the biomechanical variables were employed. Through this analysis of biomechanical variables and game contents, the following outcomes were drawn. Among the biomechanical variables that showed the significance in statistics were the pace, angle speed of bamboo sword, and the attack range. The pace for correct posture and movement was 48.7±25.6cm in successful attack of head and 65.2±23.3cm in failure. Among the biomechanical variables that had an effect on attacking movement, the pace and attacking distance were related in attacking head. The ratio of the pace compared to the height was 26.4±14.1% in that of wrist. In aspects of biomechanical factors, pace and attack distance showed the relations with the outcome of performances in attacking head. For effective strikes in biomechanic process, even no significant variables in statistics are to be considered for efficient technique combined with physical and co-responsiveness. Therefore it is recommended that strikes, maintaining the spiritual and physical drive in successful performances will be integrated ineffective drills.

사관생도의 체육활동을 통한 사회성발달요인이 신체적 자기효능감에 미치는 영향

민창기(Min, Chang-Gi),이종민(Lee, Jong-Min),박상섭(Park, Sang-Sub),박순희(Park, Sun-Hee),김인기(Kim, In-Ki) 한국체육과학회 2014 한국체육과학회지 Vol.23 No.2

The purpose of this study of cadets social development through physical activity factor out the impact of physical self-efficacy are seeing. To this end, on the basis of previous research and theory, cadets according to the individual characteristics of participants in physical activity factors, social development, and physical effects on self-efficacy was determined empirically. The subjects of this study are based in KAFA cadets to participate in physical activity among the 200 selected patients, 169 were used in the final part were used. By the way, more studies were summarized as follows. First, the social development of the sub-factors of the social factors, governance, stability, no statistically significant differences between men and women in the show, and overall social development factors in men than in women was higher. Physical self-efficacy subscale of physical competence and physical attractiveness in the sense of gender showed statistically significant differences, and about the physical self-efficacy was higher in women than men. Second, the social development of the factors involved in the stability of the sub-factors, depending on stocks showed a statistically significant difference, and the overall social development factors were the highest in the group event. Self-efficacy of physical competence subscale of the body involved in the events showed significant differences according to the tatistical and physical competence, the individual events and the most underestimated, interpersonal and organization in order. In other words, the overall physical self-efficacy and the lowest individual events, personal events, corporate events in order, respectively. Third, social development, physical factors impact on self-efficacy to evaluate the results with social dominance physical competence, physical self-expression, sense of physical attractiveness showed a positive correlation, and perceived physical ability and a negative correlation with has shown. Stability in the perceived physical ability, has shown a positive correlation.

테니스 선수의 성격유형별 스트레스 대처방식

김인기(Kim, In-Ki),민창기(Min, Chang-Gi) 한국체육과학회 2012 한국체육과학회지 Vol.21 No.5

This study has been performed to clarify the causes of tennis players" stress and therelief in university and corporate-owned team so that it can prevent the decrease of athletic performance ability and maximize performace. This is for improving of players and understanding essence of stress. Furthermore, this is for the clarifying the cause and factors of stress and relief method. The subjects of study are tennis players who are registered in universities and corporate-owned teams of Korea Amateur Athletic Association as population and then convenience sampling has been used. 100sheets of questionnaire have been collected and 90 sheets have been analyzed using SPSS 16.0 program. The results as follows. Players" while-playing, the results of playing, personal relationship, the factors of social stress are meaningfully different depending on gender. The results of player, the factors of leisure depending on age are meaningfully different. The factors of stress depending on career background are not meaningfully different. The factors of stress depending on their place are not meaningfully different. Therefore, tennis players show passive action or self-rationalization to overcome their stresses. It is needed to guide the players to use active method which is problem-centered and socially supported style rather than passive method, and more researches are needed by broaden the area of research for various personality types and method of stresses.