승용차 충돌을 고려한 가로등주 설계

임재문,이광원,Lim, Jaemoon,Lee, Kwangwon 한국자동차안전학회 2013 자동차안전학회지 Vol.5 No.2

A column for streetlamp has been damaged by severe wind loads such as typhoon. The stress concentration around the inspection hole may cause the collapse of the column for streetlamp. In this paper, the effects due to the wind load of 60 m/s and the car crash to the column at the speed of 48 km/h were considered to examine the design stability analysis of the column for streetlamp. The maximum von Mises stress did not exceed the yield stress of the material. Considering the car crash, the column for streetlamp was not collapsed.

CRASH PROTECTION OF HYBRID ELECTRICAL VEHICLES FOR AMENDING THE KMVSS NO. 91

임재문,김규현 한국자동차공학회 2010 International journal of automotive technology Vol.11 No.6

This paper explores issues related to the electrical safety of Hybrid Electrical Vehicles (HEVs) during and after various crash events. Japanese and American federal regulations regarding occupant protection against high voltages in Electric Vehicles (EVs) and HEVs were surveyed and analyzed in this study. Front, side and rear impact tests for two types of HEVs were conducted to investigate electrolyte spillage, the retention of the propulsion battery system and the electrical isolation of the occupant. The test results met the related criteria. The test procedures and the criteria for occupant protection established through this study were amended to Korean Motor Vehicle Safety Standard (KMVSS) No. 91 to add the crash protection of the EVs and the HEVs.

SNS에 게시된 관광지 사진유형에 따른 세대별 광고효과에 관한 연구

임재문,Lim, Jae-Moon 한국디지털정책학회 2021 디지털융복합연구 Vol.19 No.7

본 연구는 지방자치단체의 SNS에 게시된 사진을 경험한 사람들을 대상으로 광고 호감도가 광고 효과에 영향을 미치는지, 사진유형(인물 유·무)과 세대에 따라 유의한 차이가 있는지를 학인 함으로 지방자치단체의 SNS 활용 방안을 제시하고자 하였다. 설문조사는 2021년 4월 1일부터 4월 16일까지 실시하였으며, 총 235부를 실증분석에 이용하였다. 분석결과, 광고 호감도는 광고효과에 영향 미치는 것으로 나타났고, 관광객이 포함된 사진이 20대에서 광고호감도가 광고효과에 보다 큰 영향을 미치는 것으로 밝혀졌다.. 이는 지방자치단체에서 SNS를 운영함에 있어 관광지에서 관광객의 사진이 게시되도록 함과 더불어 SNS에 가장 많이 접속하는 세대를 파악하고, 그 세대에 맞는 사진을 게시하도록 유도하기 위한 다양한 노력을 기울여야 할 것이다. This study aimed to suggest ways to utilize local governments' SNS by recognizing whether advertising affinity affects advertising effectiveness and significant differences between photo types (personality or absence) and generation. The survey was conducted from 1 April to 16 April 2021, and a total of 235 copies were used for empirical analysis. According to the analysis, advertising likeability affects advertising effects, and photos involving tourists have a greater impact on advertising effects in their 20s. This will require local governments to make various efforts to identify the generations that access SNS the most, and to encourage them to post photos suitable for that generation, along with ensuring that tourists' photos are posted at tourist attractions.

USNCAP 정면충돌시험 결과를 이용한 HIC15 예측모델 개발

임재문 사단법인 한국자동차안전학회 2020 자동차안전학회지 Vol.12 No.4

This study is to develop the prediction model for the HIC15 in frontal vehicle crash tests. The 28 frontal impact test results of the MY2019 and MY2020 USNCAP are utilized. The metrics for evaluating the crash pulse severity such as moving average acceleration, Restraint Quotient (RQ) and ride-down efficiency are reviewed to find out whether the metrics can predict the HIC15. It is observed that the R 2 values based on the linear regression of all pairs between the existing metrics and the occupant injuries such as the HIC15, 3 ms chest g’s and chest deflection are very low. In this study, using the vehicle crash pulses, the linear regression model for estimating the HIC15 is developed. The vehicle crash pulse is splitted seven 10 ms intervals in 70 ms after impact for extracting the average accelerations in each intervals. The prediction model can predict effectively not only the HIC15 but also the maximum head g’s, chest deflection and 3 ms chest g’s of 13 vehicles out of 28 vehicles.

호텔 조직문화가 직원의 역할 스트레스와 직무만족에 미치는 영향 연구

임재문,권봉헌 한국관광학회 2009 관광학연구 Vol.33 No.5

This study was designed to identify the corporate cultures most effective at increasing hotel employees' job satisfaction. The influence of job related stress and role conflict was studied as mediating variables in the relationship between corporate culture and employee job satisfaction. Data were collected from 10 five star hotels in Seoul. A total of 365 questionnaires were used for data analyses. Results of SEM analysis showed that role orientation culture might mitigate the employees' role ambiguity. However, power orientation culture has a statistically significant positive effect on the role conflict as well as the role ambiguity, and consequently has a negative effect on job satisfaction This study concluded with several recommendations for enhancing hotel employees' job satisfaction from the corporate culture perspective.

고성능 복합재 격자구조체 제작 공법에 관한 연구

임재문,신광복,이상우 대한기계학회 2023 大韓機械學會論文集A Vol.47 No.8

In this study, a manufacturing method for high-performance composite lattice structures was investigated for applications to space launch vehicles. Split fixture and split silicon pattern molds were applied to improve the dimensional accuracy of the composite lattice structure manufactured using the filament winding method. The split silicon pattern molds were made of a higher-hardness silicon material, which further improved the dimensional accuracy of the composite lattice structure. Furthermore, the fiber intersections were subjected to additional compression using a roller during the fiber winding process to minimize the thickness difference between fiber intersection and non-intersection, and a heat shrink film was applied to make the uniform thickness during the curing process. The performance of the composite lattice structure fabricated using the proposed manufacturing method was evaluated using compressive tests, and the reliability of the manufacturing method was verified using launch tests on the interstage of the space launch vehicle. 본 논문에서는 우주발사체 적용을 위한 고성능 복합재 격자구조체 제작 공법에 대해 연구를 수행하였다. 필라멘트 와인딩 공법을 통해 제작되는 복합재 격자구조체의 치수 정밀도 향상을 위해 분할식 금형과 분할식 실리콘 격자 무늬 금형을 적용하였다. 분할식 실리콘 격자 무늬 금형을 적용하여 더 높은 경도의 실리콘 소재를 사용할 수 있었으며, 이로 인해 복합재 격자구조체의 치수 정밀도를 더욱 향상할 수 있었다. 또한 섬유 교차부와 비교차부의 두께 차이를 최소화하기 위해 섬유 와인딩 공정에서 롤러를 이용해 섬유 교차부를 압착하였으며, 열 수축 필름을 적용해 성형 과정에서 두께가 균일하게 제작 되도록 하였다. 개발된 제작 공법으로 제작된 복합재 격자구조체는 압축 시험을 통해 성능을 평가하였으며, 우주발사체 단 연결부에 적용하여 발사 시험을 통해 제작 공법의 신뢰성을 확보하였다.

관광학적인 측면에서 재난지역 위기관리기능에 관한 연구 - 특별재난지역 태안을 방문한 관광객들의 동기를 중심으로 -

임재문,김영미 한국관광학회 2010 관광학연구 Vol.34 No.4

By investigating motivations of tourists who visited “Taean County”, this study examined the function of crisis management in a disastrous tourism area. The county was hit by an oil spill in 2008 and by the reason, it was declared the as a ‘special disaster area’ by the Korean government. Data were collected from 300 visitors at the three beaches of the area from July to August 2008. Results of a cluster analysis identified two segmentations of the visitors: ‘active group for helping disastrous area’ and ‘passive group for helping disastrous area’. Results also showed that each group had different socio-demographic characteristics. The two groups were also differed each other in terms of behavior characteristics. Furthermore, results indicated that the active group for helping disaster had higher scores on the level of ‘satisfaction of visitation’, ‘willingness to revisit’ and ‘willingness to recommend’ than the passive groups had. Based on the findings of this study, several implications for crisis management in a disastrous tourism area. were proposed.

웨딩플래너의 직무특성이 직무태도와 이직의도에 미치는 영향 연구

임재문,송영석 한국관광학회 2011 관광학연구 Vol.35 No.3

This study investigated the effect of wedding planner's job characteristics on their job attitude and intention to turnover. Based on the review of related literature, several research hypotheses were established and empirically tested. Data were collected from 398 wedding planners in Seoul from June to August 2009. Results of a structural equation analysis showed that some aspects of the respondents' job characteristics(i.e. task significance, autonomy, feedback) significantly influenced their level of job satisfaction. In contrast, other aspects of the respondents' job characteristics(i.e., skill variety and task identity) did not significantly effect their level of job satisfaction. In addition, all the respondents' job characteristics except for the skill variety also significantly influenced on the respondents' level of organization committment and intention to turnover. Finally, the respondents level of job satisfaction, organization commitment negatively affected turnover intention. 본 논문은 웨딩플래너의 직무특성이 직무태도인 직무만족, 조직몰입 그리고 결과변수인 이직의도에 미치는 영향을 알아보는데 그 목적을 두었다. 연구진행을 위한 샘플은 서울 지역의 100여개 업체를 대상으로 웨딩 컨설팅업에 근무하는 웨딩플래너들에게 2009년 6월1일 에서 8월1일 까지 420부를 배포하여 405부가 회수되었고, 불성실한 응답을 제외한 398부에 대하여 분석을 실시하였다. 설문조사를 위해 서울시내 웨딩 컨설팅 업체 현황을 파악하여 설문조사하였다. 연구결과 기능다양성, 과업정체성, 과업의 중요성, 자율성, 피드백이라는 직무특성 중 웨딩플래너의 직무태도인 직무만족에 영향을 미치는 직무특성으로는 과업중요성, 자율성, 피드백이 직무만족에 정(+)의 영향을 미치는 것으로 나타났다. 그러나 직무가 일의 전체적인 내용과 과정을 알고 처리하도록 요구하는 정도를 의미하는 과업정체성과 직무를 수행하는데 있어서 여러 가지 기능이나 재능을 사용하는 다양한 활동들이 요구되는 정도를 의미하는 기능다양성은 웨딩플래너의 직무만족에 유의한 영향관계가 없는 것으로 나타났다. 또한 이러한 직무특성 중 기능다양성은 조직몰입에도 아무런 영향관계가 없는 것으로 나타났다. 또한 직무특성 중 웨딩플래너의 이직의도에 미치는 직무특성 요인은 과업의 정체성, 과업의 중요성, 자율성, 피드백이 이직의도에 부(-)의 영향을 미치는 것으로 나타났다.

자동차 정기검사 주기에 관한 고찰

임재문,정영달,여운석,강병도,윤영한,Lim, J.M.,Jung, Y.D.,Yeo, U.S.,Kang, B.D.,Youn, Y.H. 한국자동차안전학회 2012 자동차안전학회지 Vol.4 No.2

The periodic technical vehicle inspection is to prevent the accident through the finding and fixing the defects of the vehicle. The periodic technical vehicle inspection in Korea was studied for assessing the adequacy of the inspection frequency. The inspection frequencies of many countries including EU, USA and Japan were compared. The average mileages by the vehicle usage and type were represented. The warranty period and recommended replacement period of parts of the domestic auto makers was studied. Currently, the inspection frequency for the periodic technical vehicle inspection in Korea is appropriate. The pass-fail rate and the cost-benefit analysis for the periodic technical inspection in Korea will be needed in the decision making process for the inspection frequency.

디지털 사이니지 콘텐츠 소구 유형과 상호작용성이 태도와 기억에 미치는 효과

임재문 한국디지털정책학회 2019 디지털융복합연구 Vol.17 No.11

The study empirically analyzed the effects of content attitudes and recall on digital signage advertising appeal (information appeal vs. image appeal) and interactivity level (low vs. high). As a result, first, it was found that a moderately low level of interactivity had a positive effect on content attitudes and recall than when the level of digital signage was extremely high. In addition, at moderately low levels of interactivity, information appeals had higher content attitudes and recalls than image appeals. Second, the content of image appeal has a positive effect on attitude when the digital signage level of interactivity is high, and the image recall ad and information appeal ad have negative effects on recall. Third, the low level of interactivity of digital signage has a positive effect on the content attitude and recall of information appeal. With the advent of digital media in recent years, concerns about how to construct the level of interactivity and information content on a strategic level are increasing in practice. The results of this study are expected to suggest the direction of the strategic grounds for this. 본 연구는 디지털 사이니지의 광고 소구 유형(정보소구 vs. 이미지 소구)과 상호작용성(저 vs. 고)에 따라 콘텐츠 태도와 회상에 미치는 효과를 실험을 통해 실증적으로 분석하였다. 디지털 사이니지가 공공 장소에 다양하게 설치되고 있으나 카메라, 화면 터치, 스마트폰 연계, 전송 기능 등 상호작용성 수준을 과도하게 높여 지속적인 커뮤니케이션 효과를 유지하지 못하고 있으며, 광고 소구에 대한 전략적 접근이 없이 무분별하게 이루어지고 있는 상황이다. 연구 결과 첫째, 디지털 사이니지의 상호작용성 수준이 극단적으로 높은 경우보다 적절히 낮은 상호작용성 수준이 콘텐츠 태도와 회상에 긍정적인 영향을 미치는 것으로 나타났다. 또한 적절히 낮은 상호작용성 수준의 경우 정보소구의 광고가 이미지 소구의 광고보다 콘텐츠 태도와 회상이 높게 나타났다. 둘째, 디지털 사이니지의 상호작용성 수준이 높은 경우 이미지 소구의 콘텐츠가 태도에 긍정적인 영향을 미치며, 회상에서는 이미지 소구 광고와 정보 소구 광고 모두 부정적인 영향을 미치는 것으로 나타났다. 셋째, 디지털 사이니지의 상호작용성 수준이 낮은 경우 정보소구의 콘텐츠 태도와 회상에 긍정적인 영향을 미치는 것으로 나타났다. 이에 본 연구 결과는 디지털 사이니지의 콘텐츠 제작에 대한 전략을 수립하는데 기여할 수 있을 것으로 기대된다.