IPA 매트릭스를 활용한 모바일 쇼핑몰 선택속성에 관한 연구

김종하,김경희,Kim, Jong-ha,Kim, Kyung-hee 한국정보통신학회 2016 한국정보통신학회논문지 Vol.20 No.12

본 연구는 최근 급성장하고 있는 모바일 쇼핑시장에서 향후 전략적 마케팅시사점을 얻고자 대학생들을 대상으로 IPA매트릭스를 활용하여 분석하였다. 모바일 쇼핑몰 선택속성에 대한 IPA분석결과는 다음과 같다. 첫째, 21개 속성 중 '제공되는 제품의 신뢰성(6.09)'이 중요도가 가장 높게 나타났으며, '대금결제의 편리성(5.29)'이 수행도가 가장 높게 나타났다. 둘째, 유지 강화가 필요한 영역(Doing great, Keep it up)에는 '대금결제의 편리성', '제공되는 제품의 신뢰성' 등 11개 속성 등이 포함되었다. 셋째, 불만족 영역(Focus here)으로서 시정노력이 필요한 속성으로는 '교환이나 반품처리 및 A/S 등을 위한 대기시간 단축'이 해당되었다. 넷째, 중요도와 수행도 모두 낮은 영역(Low Priority)에는 '푸시/알림이 구매에 도움' 등 3개 속성이 해당되었다. 다섯째, 과잉노력지양 영역(Overdone)에는 '제품종류가 다양' 등 4개 속성이 해당되었다. This study conducted an analysis using IPA metrics targeting college students to get strategic implications for marketing in the recently fast-growing mobile shopping market. The IPA analysis result about the selection of mobile shopping malls is as follows. First, out of the 21 features, 'reliability of the offered products(6.09)' had the highest level of importance and 'convenience of payment(5.29)' had the highest level of performance. Second, in the area of 'Doing great, Keep it up' 11 features were included such as 'convenience of payment' and 'reliability of the offered products'. Third, the feature that needed to be corrected in the area of 'Focus here' was 'shortening the waiting time for exchange, refund or warranty service'. Fourth, low priority areas in terms of importance and performance, there were 3 features including 'push/notification helps purchases'. Fifth, to the area of 'overdone' 4 features belonged such as 'variety in the type of products'.

연구논문 : Cu 첨가 극저탄소강의 시효경화 및 집합조직 발달 거동

김종하,이후철 ( Jong Ha Kim,Hu Chul Lee ) 대한금속재료학회 ( 구 대한금속학회 ) 1991 재료.물성 심포지엄 Vol.- No.-

합리적 국방획득체계 구축을 위한 방안

김종하,Kim, Jong-Ha 한국국방경영분석학회 2009 한국국방경영분석학회지 Vol.35 No.2

This paper examines several inefficient problems generated from a management process of defense acquisition system, and suggests several alternatives to remedy the current acquisition-related problems. This might help MND to reform the current DAPA's acquisition system. The offered elements are to, first, redefine function of mid-term plan & budget allocation between MND and DAPA, second, devise economic acquisition management and force development to build integrated management system of requirement-acquisition-operation & maintenance, third, build Workforce Management Act(WMA) and Professional Education System(PES) for strengthening expertise and institutionalizing manpower rotation of requirements & acquisition-related fields, fourth, implement weapon systems' Total Life Cycle Systems Management(TLCSM) and improve developmental & operational test and evaluation. These are essential elements in minimizing confusion & conflict emanating from surrounding acquisition program among MND-DAPA-Each Services. 본 논문은 방위사업청 개칭이후 국방획득체계 운영과정에서 드러난 몇 가지 비효율적인 문제점을 분석하고, 이를 개선하는데 필요한 방안을 모색하는데 있다. 이것은 앞으로 국방부가 획득체계를 개선할 시 참고자료로 활용하는데 도움을 줄 수 있을 것이다. 제시된 방안들은 첫째, 국방부와 방위사업청간 중기계획 및 예산편성에 관한 기능을 재정립해야 한다. 둘째,소요-획득-운영유지의 통합관리체계 구축을 통해 경제적 획득관리 및 전력발전을 도모해야 한다. 셋째, 소요-획득분야 인력순환(순환근무)을 제도화하고, 획득인력의 전문성 강화를 위해 인력관리법 및 전문교육체계를 구축해야 한다. 그리고 넷째, 무기체계 '총수명주기체계관리'를 시행하고, 방위사업청 주도의 개발 및 운용시험평가 방식을 개선해야 한다. 이것은 국방부-방위사업청-각 군 간 획득사업을 둘러싸고 파생되는 업무혼선과 갈등을 최소화하는데 있어 필수적인 요소들이다.

성장 중인 흰쥐 악관절의 basic fibroblast growth factor(bFGF) 분포에 관한 면역조직화학적 연구

김종하,이상철,Kim, Jong-Ha,Lee, Sang-Chull 대한구강악안면외과학회 2001 대한구강악안면외과학회지 Vol.27 No.1

This study was designed to localize the distribution of basic fibroblast growth factor(bFGF) in the developing rat condylar region and to elucidate the associated function of bFGF in the condyle development. The condyles of temporomandibular joint of Sprague-Dawley rats (27g of weight) were used. The tissues were examined with electron microscope and immunohistochemical method. The results were as follows: 1. The developing condylar region are divided in to 5 zones apparently: proliferative, maturation, hypertrophic, calcifying, and ossification zones. 2. The cells in the proliferative zone are condensed and have under-developed cell organells in the cytoplasm. This zone shows a strong immunoreactivity of bFGF. 3. The cells in the maturation zone are typical chondroblasts showing well-developed cell organells and round nucleus. The cartilaginous matrix does not show the immunoreactivity of bFGF, while the chondroblasts show the immunoreactivity. 4. The cells in the hypertrophic zone show hypertrophic change having the degenerated cell organelles and small nucleus. There are no immunoreactivity of bFGF in this zone except the nucleus and endoplasmic region showing mild immunoreactivity. 5, The cells in the calcifying zone show hypertrophic change and cell organelles are disappeared. The cells are surrounded by the calcified cartilaginous matrix. There are no immunoreactivity of bFGF in this zone except the endoplasmic region showing mild immunoreactivity. 6. In the zone of bone formation, chondroblasts are disappeared. Newly differentiated osteoblasts secreting osteoid around the calcified cartilaginous matrix. The bone marrow shows the immunoreactivity of bFGF, while the bone matrix does not show the immunoreactivity of bFGF.

미디어 파사드 영상 자극에 대한 뇌파 반응 특성

김종하(Kim, Jong-Ha),김상희(Kim, Sang-Hee),이정호(Lee, Jeong-Ho),김주연(Kim, Ju-Yeon) 대한건축학회 2014 대한건축학회논문집 Vol.30 No.9

This study attempts to analyze characteristics of human EEG response to image stimulus to two media facade cases, the Galleria Department Store and the Seoul Square in Seoul, which have different expression methods of its contents. For this study, authors used the EEG(Electroencephalogram) measurement method and the study results are as follows. First, the image stimulus of the Galleria Department Store and the Seoul Square highly revitalized the theta band, compared to other bands, and other bands showed differences in the mean value of EEG as well. Second, our analysis of the activity of each brain part of the EEG band showed that each band and brain part showed differences to image stimulus. Furthermore, F4(t=2.558, p<0.5) channel in the frontal lobe of the alpha band, F4(t=-2.373, p<0.5) channel in the frontal lobe of the beta band and F3(t=-2.257, p<0.5) channel in the frontal lobe of the gamma band showed statistically significant differences, and all of them showed differences in the frontal lobe. Third, our analysis revealed that there was a significant correlation(significance level: p<0.05) between the parts of the EEG band influenced by image stimulus. In addition, 45 brain parts showed a high synchronicity of image stimulus to the Galleria Department Store and 50 brain parts showed a high synchronicity of image stimulus to the Seoul Square. Based on this result, authors conclude that more brain parts were used to process information of image stimulus for the Seoul Square. Lastly, our analysis of the EEG band activity between male and female groups influenced by image stimulus showed that the mean value of EEG is different in all the bands.

넷-제로 건물을 위한 친환경 통합설계 디자인 전략 체계에 관한 연구 - AIA TOP 10 COTE 교육연구시설 사례분석 중심으로 -

김종하(Kim, Jong-Ha),이경선(Lee, Kyung-Sun) 대한건축학회 2022 대한건축학회 학술발표대회 논문집 Vol.42 No.1

The world is currently making steady efforts to reduce energy use and carbon dioxide generation to cope with problems caused by global warming, and Korea is also making efforts to solve the problem through mandatory zero energy. Therefore, this study selected AIA TOP 10 cases for educational research facilities with a high proportion of the current status of zero energy certification in Korea.Through this case analysis, the direction of the eco-friendly integrated design plan is presented by analyzing M.Dekay & G.Z Brown"s design strategy of Sun, wind, and Light as a scale strategic system diagram according to the level. Based on the results derived through this, it is intended to find a way to drastically reduce energy load by designing an effective passive system.

공간정보 탐색을 위한 의식적 시선 이동특성 추출 방법

김종하(Kim, Jong-Ha),정재영(Jung, Jae-Young) 한국실내디자인학회 2016 한국실내디자인학회논문집 Vol.25 No.2

This study has estimated the traits of conscious eye moving with the objects of the halls of subway stations. For that estimation, the observation data from eye-tracking were matched with the experiment images, while an independent program was produced and utilized for the analysis of the eye moving in the selected sections, which could provide the ground for clarifying the traits of space-users’ eye moving. The outcomes can be defines as the followings. First, The application of the independently produced program provides the method for coding the great amount of observation data, which cut down a lot of analysis time for finding out the traits of conscious eye moving. Accordingly, the inclusion of eye’s intentionality in the method for extracting the characteristics of eye moving enabled the features of entrance and exit of particular objects with the course of observing time to be organized. Second, The examination of eye moving at each area surrounding the object factors showed that [out]→[in], which the line of sight is from the surround area to the objects, characteristically moved from the left-top(Area I) of the selected object to the object while [in]→[out], which is from the inside of the object to the outside, also moved to the left-top (Area I). Overall, there were much eye moving from the tops of right and left (Area I, II) to the object, but the eye moving to the outside was found to move to the left-top (Area I), the right-middle (Area IV) and the right-top (Area II). Third, In order to find if there was any intense eye-moving toward a particular factor, the dominant standards were presented for analysis, which showed that there was much eye-moving from the tops (Area I, II) to the sections of 1 and 2. While the eye-moving of [in] was [Ⅰ→A](23.0%), [Ⅰ→B](16.1%) and [Ⅱ→B](13.8%), that of [out] was [A→Ⅰ](14.8%), [B→Ⅰ](13.6%), [A→Ⅱ](11.4%), [B→Ⅳ](11.4%) and [B→Ⅱ](10.2%). Though the eye-moving toward objects took place in specific directions (areas), that (out) from the objects to the outside was found to be dispersed widely to different areas.

시선의 도약거리 추출 기법과 공간탐색 특성

김종하(Kim, Jong-Ha) 한국실내디자인학회 2017 한국실내디자인학회논문집 Vol.26 No.5

This research is about the characteristics of the saccades that occurring in the process of observing the spatial. The size of the saccades is the visual activity for acquiring the information, and the search trace that left by the spatial visitor. Reviewed over the saccade through the analysis of observation process that appeared in the eye-tracking experiment of sports store from the department store, the saccade is defined as the sight movement in the process of finding a component to view in the spatial. If some spatial component induces saccade, and able to know which specific component acquired through the saccade, then the designer will have a clue which able to provide the spatial desired by the consumer. The results of analyzing the process in the deriving the spatial component and saccade characteristic from industrial space, can be summarised as follows. The first, the average fixed number of [IN].[OUT] zone appeared similarly, and it leads to knowing that the time used for attention with one frequency is about 0.3 seconds. Second, there were more saccades toward [IN→OUT] (13 persons, 76.5%) than [OUT→IN] (4 persons, 23.5%). The Los Angeles area has lots of interesting things to watch, so it able to thinks to begins with small saccade and then occur to bigger saccade activity to find new interests shortly after [OUT] saccade. Third, according to time range changes, keep eyes on the characteristics of saccade, [IN].[OUT] frequency has slightly decreased the changes of viewing time, but there was no significant change in an average number of observations. This means that the frequency and the number of observations are decreased together. Therefore, it can be seen that the amount of information to be acquired (frequency) is decreased (count) as the observation time elapses.

공간사용자의 본능적 시선탐색활동에 나타난 주사경로 알고리즘 특성

김종하 ( Jong Ha Kim ),김주연 ( Ju Yeon Kim ) 한국감성과학회 2014 감성과학 Vol.17 No.2

본 연구는 지하철 로비공간을 대상으로 한 주시실험을 통해 공간정보의 본능적 시선탐색과정에서 나타나는 주시특성에 나타난 주사경로 알고리즘을 분석하였다. 주시기간 구간별 분석에서 주시시간이 오래 경과할수록 주사유형 횟수가 증가하고 있었는데, 오래 주시할수록 주시단절이 많이 일어난 것으로 해석이 가능하며, 주시에 따른 피로나 활발한 탐색이 자연스러운 공간탐색과정에서 일어나는 과정에서 화상범위를 벗어나는 경우가 많았던 것으로 보인다. 또한 시간구간의 변화에 따른 주사유형의 변화를 추세선으로 살펴본 결과, 「집중」은 시간구간의 증가와 함께 가파른 증가, 「대각·수직」은 완만한 증가를 보이는 반면, 「순환·혼합·수평」은 감소 경향을 보이고 있다. 공간을 주시한 피험자의 주시데이터에는 다양한 시각정보가 포함되어 있는데, 「주의집중」에 나타난 주사유형을 분석한 결과, 이상과 같은 의미 있는 결론을 도출할 수 있었다. 이러한 주사유형의 증감특성은 시간의 경과에 따른 주사경향을 파악함에 있어 기초자료가 될 수 있다. This study has analyzed the scanning path algorithm shown at the process of exploring spatial information through an observation experiment with the object of lobby in subway station. In the estimation of observation time by section, the frequency of scanning type was found to increase as the observation time got longer, which makes it possible that the longer the observation lasts the more the observation interruptions occur. In addition, the observation slipped out of the range of imaging when any fatigue was caused from the observation or the more active exploration took place. Furthermore, when the trend line was employed for the examination of the changes to the scanning type by time section, “concentration” “diagonal or vertical” showed a sharp and a gentle increases along with the increase of time section respectively, while ‘circulation. combination, horizontal“ showed a reduction. The observation data of the subjects observing a space include various visual information. The analysis of the scanning type found at ”attention concentration“ enabled to draw this significant conclusion. The features of increase and decrease of scanning types can be a fundamental data for understanding the scanning tendency by time. Key words: Public space, Eye-tracking, Scanpath, Spatial navigation, Neuro Design, Primacy Effect

실내공간의 주시에서 이미지 매체 차이에 나타난 시지각 반응 특성

김종하(Kim, Jong-Ha),최계영(Choi, Gae-Young) 한국실내디자인학회 2018 한국실내디자인학회논문집 Vol.27 No.4

By using eyes, humans unconsciously observe what they want to observe not the whole image in their sights. The appearance of the object is a crucial task of observing-selection for an observer. The information perceived by observing will induce related actions, be memorized in the brain, and involve in recognition and recall process. This eye-tracking test set the same interior space but the different type of images such as CG and real image in an effort to compare the processes of visual-perceptions by the eye-tracking test in the different type of images. The result of the eye-tracking test illustrates intriguing concepts and relations. First, through sensibility evaluation on male and female, the male has a more distinct difference between visual-perception in real image and that in CG image than female. Second, the female has more visual-perception occurred in CG image. Third, in the image A, focused observation occurs 60 seconds in the observation-time. After the 60 seconds, the focused observation had been dramatically changed in the form of “descendingàescalatingàdescending”. In the image B, focused observation keeps decreasing in the first 50 seconds. After decreasing in the first 50 seconds, the focused observation maintains certain form “maintainingàescalatingàdescending” Forth, in the image A, left-up and left-down sections contain more observation occurrences while, in the image B, right-down section contains more observation occurrences. However, since middle and right sections contain 68.8~78.6% of observation occurrence, observation occurrences focused sections are almost identical in both types of images.