컴퓨터 작업에서 마우스 종류에 따른 상완 부하 평가

송영웅(Young-Woong Song),김경아(Kyoung-Ah Kim) 대한산업공학회 2011 대한산업공학회지 Vol.37 No.3

최신 인체 측정 데이타를 이용한 한국 성인 체표면적 추정

송영웅 ( Young Woong Song ) 대구가톨릭대학교 자연과학연구소 2015 자연과학연구논문집 Vol.13 No.1

Body surface area (BSA) of the human body is an infortant measure that is used extensively in physiology to express basal metabolic rate, oxygen consumption, etc. This study estimated Korean adults body surface area using the most recent stature and weight data of Korean adults (the 6th Size Korea data, 2010), and compared to the body surface area estimated using the 5th Size Korea data (2004). For men, the BSA was largest in the age of 25~34 years old (mean = 18,965 ㎠), while the BAS of women in the age of 45~54 years old was estimated as the largest among other age groups (mean = 16,021 ㎠). There was little difference between th BSAs estimated using 5th and 4th Size Korea Data for women, but the BSAs estimated using the 6th Size Korea data were larger than those by the 5th Size Korea data for men in the age groups of 25~34 and 35~44 years old. For accurate risk assessment, it is recommended to use the recent BSA values estimated using the recent anthropometric data.

글자의 복잡성이 청년층의 한글 일음절 글자 가독성에 미치는 영향

송영웅 ( Young Woong Song ) 대구가톨릭대학교 자연과학연구소 2013 자연과학연구논문집 Vol.11 No.1

This study investigated the effects of the font type (gothic, myungjo), color contrast (black on white, white on black), distance (50 cm, 200 cm), complexity (simple, complex) on the Korean characters`` legibility. Total eighteen subjects (male: 10, female: 8) participated in the legibility experiment. Subjects were instructed to read a target panel presented in the distance of 50 cm or 200 cm. The target panel was made with different font type, character complexity, and color contrast. Results showed that simple characters revealed better legibility than complex characters, and gothic type showed better legibility than myungjo type. From the analysis of variance of the minimum size for the 0% correct answer, it was found that the main effects of the distance, font type, and complexity were statistically significant (p<0.05). These main effects were also statistically significant for the 100% correct answer. Thus, it was recommended that the character complexity should be considered when designing or making guidelines for the letter size of the medical products, pesticide products, or other presentation materials.

중심 합성 설계 방법을 이용한 삼륜/사륜 운반차 손잡이 변수의 최적화

송영웅 ( Young Woong Song ) 대구가톨릭대학교 자연과학연구소 2012 자연과학연구논문집 Vol.10 No.1

This study aimed to optimize the three handle variables (handle width, vertical angle and horizontal angle) using the central composite design method. Twenty healthy female subjects participated in the experiment. In the experiment, the independent variables were handle width, horizontal angle, and vertical angle, and the pushing forces were collected using a force gauge. The central composite design was applied and a total 17 treatment conditions were tested. Using the average force data of the 17 treatment conditions, a second order response surface model was extracted. Using the second order response model, the optimal solution set for the handle width, horizontal angle, and vertical angle was determined. The objective function in this optimization process was to maximize the pushing force. The optimal solution set of handle wight = 1.25*shoulder width, horizontal angle = -10°, and the vertical angle of -10° was found. It is expected that this condition can maximize the pushing force or minimize the musculoskeletal load when exerting a submaximal pushing force.

설문 조사를 통한 단체 급식시설 주방 종사자 사고 발생 현황, 위험 요인 및 예방 방안 도출

송영웅(Young-Woong Song),기도형(Dohyung Kee),김욱(Wook Kim) 대한인간공학회 2018 大韓人間工學會誌 Vol.37 No.4

Objective: The purposes of this study are to survey the accidents occurred in the kitchens of the catering services and restaurants, and to identify their risk factors focused on the kitchen facilities and utensils. Background: Accidents rates in the food industry showed increasing trend in many countries including Korea. The workload in catering and commercial kitchens is high, and workers in kitchens are experiencing several kinds of accidents and hazards like burn, slip, cut, and musculoskeletal disorders. To reduce the accidents and hazards in kitchens, the information about the accidents and hazards occurred in kitchens and risk factors related to kitchen facilities and utensils are necessary. Method: Questionnaire survey was conducted for accidents occurred during last one year, their risk factors, and preventive measures. Participants were 321 workers currently working in kitchens of catering services and commercial restaurants, and 276 respondents were used for analysis. Frequency analysis was conducted for the characteristics of the participants and kitchens, also for the kitchen facilities and accident cases occurred within a year till today. Chi-square test was conducted to see whether the accidents cases were different according to the kitchen type, number of workers (size of kitchen), etc. Based on these results, preventive measures were derived for each accident type. Results: Frying kettle, rotary kettle, vegetable cutter and kitchen knife were more dangerous cooking utensils. More than 30% of the respondents (31.5%) reported more than one accident case during last one year (1 case, 14.9%; 2 cases, 8.3%; and 3~5 cases, 8.0%). The most frequently reported accident was burn injury (34.0%), followed by cut (27.1%), slip (26.4%), and musculoskeletal disorders (7.6%). It was found from chi-square test that the number of accidents during last one year was dependent on the level of safety device installation (more safety device, less accident cases). Several preventive measures were suggested for each accident and hazard based on the results. Conclusion: Burn, cut, slip, and musculoskeletal disorders were the frequently occurred accident and hazards, and frying kettle, rotary kettle, vegetable cutter, and kitchen knife were identified as most dangerous cooking utensils. Thus, preventive efforts should be focused on these accidents and cooking facilities. Application: The results of this study would be helpful as basic data for kitchen safety and the suggested preventive measures would be useful for establishing policies to reduce accidents and risk factors.

한국인 인체측정 데이터를 이용한 사무용 의자의 인간공학적 설계

송영웅 ( Young Woong Song ) 대구가톨릭대학교 자연과학연구소 2010 자연과학연구논문집 Vol.8 No.1

This study aimed to design a chair for VDT workers based on the ergonomic design guidelines. The most recent anthropometric data of Korea male (25-60 years old) were used in the design process. First, the chair design variables were determined and these twelve variables were grouped to 5 categories. Then, the relevant anthropometric variables were assigned to each chair design variables. The 5th and 95th percentile values were used as accommodation range. Finally, the chair design variables were suggested based on the 5th and 95th percentile values and on the ergonomic design guidelines. The chair designed in this study could be used by the VDT workers (age range: 25~60 years).

QFD 적용을 위한 소비자 요구사항 선정 방법론 조사 연구

송영웅 ( Young Woong Song ) 대구가톨릭대학교 자연과학연구소 2009 자연과학연구논문집 Vol.7 No.1

To apply the QFD(quality function deployment) method to the field environment, the building of HOQ(house of quality) in a proper size is very important in the aspects of time and effort. Two factors, CAs(customer attributes) and EC(engineering characteristics) determine the size of the HOQ. Thus the proper selection of the two factors in appropriate size has been very important issues. This study surveyed the selection methods of the CAs(customer attributes) among two factors determining the size of HOQ. First, the QFD application papers were searched to identify the frequently ued CA selection methods. Also, the subjective criteria were proposed that could be used in the preliminary selection stage of the CAs.

웹 디자인에서 소비자 요구 사항의 효율적 선정 방법론 연구

송영웅 ( Young Woong Song ),이인석 ( In Suk Lee ) 대구가톨릭대학교 자연과학연구소 2009 자연과학연구논문집 Vol.7 No.1

This study proposed a methodology to identify the customer requirements to be used in the design of the web site to improve the usability. First, in the screening stage, seven criteria could be used to select the appropriate customer requirements list. After the first screening stage, qualitative grouping using the affinity diagram could be used to reduce the number of the customer requirements. Also, quantitative grouping method (cluster analysis) could be used by using the correlation data among the selected customer requirements, and cluster analysis could be conducted by using the evaluation data of several web-sites. These three grouping methods (one qualitative and two quantitative) showed quite different groups that the final selection should be conducted by considering the proposed groups by the three methods.

한글 문자 가독성과 관련된 한국 표준 조사 및 문제점 파악

송영웅 ( Young Woong Song ),임창옥 ( Chang Wook Lim ),이인석 ( In Suk Lee ) 대구가톨릭대학교 자연과학연구소 2008 자연과학연구논문집 Vol.6 No.1

This study investigated the Korea Standards (KS) related to the Korean characters` readability and conduced a questionnaire survey about the readability of Korean characters in daily living conditions. Total eleven KS standards were analyzed and eight standards among them were found to be the same with ISO standards established for English characters, and one standard was based on Japanese standard. From the questionnaire survey, it was found that people have difficulties in reading Korean characters on the medical product, grocery product, and product manual. The main reasons for the discomforts in reading those products were character size and illumination. Thus, it is highly recommended that the experimental studies investigating the influences of various factors on readability of Korean characters should be conducted intensively, and KS standards should be established based on these experimental results.

건설기업의 BPM 도입을 위한 단위업무의 변화빈도 분석

송영웅(Song Young-Woong),김기훈(Kim Ki-Hoon),최윤기(Choi Yoon-Ki) 대한건축학회 2009 大韓建築學會論文集 : 構造系 Vol.25 No.7

Recently in the various constructional market, construction companies have realized to need a multi-change and tried to introduce Business Process Management(Below BPM) for their managerial environment which is enable to improve separation between process and IT. It also suggests a sustainable process change with monitoring. To introduce BPM effectively, however, they must have an appropriate process matched their managerial situation. This paper studied the theory of BPM and suggested Business Process Architecture (Below BPA) based on the interview from staff working construction companies. Further, we extracted some relatively-low unit tasks in a change frequency based on the BPM practitioners with a comprehensive survey of 10 construction companies and analyzed them through change frequency unit tasks of 11 points in the level of the mega process and the process. This will help selecting unit tasks which are relatively stable in terms of easiness by analyzing patterns of introducing BPM.