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문헌 고찰을 위한 근거이론방법의 활용: 디지털 환경에서의 그림자 노동 개념 도출
박상철,이웅규,Park, Sangcheol,Lee, Woong-Kyu 한국지식경영학회 2019 지식경영연구 Vol.20 No.2
The objective of this paper is to present how to use Grounded Theory Methodology for conducting a literature review that produces new insights and conceptualizations. In this paper, we have employed Wolfswinkel et al.(2013)'s method, which is called by Grounded Theory Literature-Review Method, for a rigorous literature review. We have utilized this method to capture the concept and insights of individuals' shadow wok in digital environments. By analyzing the relevant literature based on Wolfswinkel et al.'s guide, we have extracted 73 codes in the coding steps and finally showed 12 categories by incorporating similar concepts from those codes. Based on the categories, we end this paper by developing the academic definitions of shadow work in digital environments.
박상철(Sangcheol Park),한재영(Jaeyeong Han),이종경(Jonggyeong Lee),김성수(Sung-Soo Kim),유상석(Sangseok Yu),최장영(Jangyoung Choi),차한주(Hanju Choe) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
A virtual chassis platform for fuel cell hybrid electric vehicles has been developed. The virtual chassis platform has been constructed using mathematical formulation with forward simulation method. Using the mathematical model, it is easy to change components or controllers for dynamic simulation. Control strategies which consider energy efficiency of the fuel cell are composed for the virtual chassis platform. The control strategies have been verified by fuel consumption from the driving simulation result with a UDDS velocity profile.
박상철(Sangcheol Park),송연민(Younmin Song),신경훈(Kyunghun Shin),최성규(Seongkyu Choi),박정원(Jungwon Park) 한국자동차공학회 2013 한국자동차공학회 학술대회 및 전시회 Vol.2013 No.11
Body stiffness has a direct effect on suspension geometry change. also has a closely connection with driving characteristics. Thus, the body stiffness must have be considered for the correct analyzation of driving characteristics. Therefore in this study, we developed UTV(Utility Terrain Vehicle) driving characteristics analysis model under the consideration of body stiffness. The UTV analysis model is constructed based on the data such as weight measurement, hard-point measurement, 3D scan and spring & damper test etc. We use the ADAMS/car as the analysis tool. We studied the corelation between the UTV analysis model and ride & handling test results for the more accuracy analysis model development. Body stiffness was approximated with bush elements which was based on stiffness result data through bending and torsion test. The developed model has been compared and verified with ride & handling test results and another UTV analysis model with rigid body. And then, we analyzed the effect of body stiffness on driving characteristics.
연료전지 하이브리드 차량 가상 플랫폼을 위한 모터 및 발전기 모델 개발
박상철(Sangcheol Park),최장영(Jangyoung Choi),김성수(Sung-Soo Kim) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
In this paper a generator model was developed for improved reliability of Fuel Cell Hybrid Vehicle Virtual Platform simulaton. The developed generator model can do drive vehicle and make regenerate energy. The generator model has been constructed based on mathematical fomula. Using this model, it is easy to change the controller and to apply dynamic parameters immediately. Reliability of generator model is verified by simulation result according to parameter variation.
박상철(Sangcheol Park),윤홍선(Hongseon Yun),한재영(Jaeyeong Han),이종경(Jonggyeong Lee),김성수(Sung-Soo Kim),최장영(Jangyoung Choi),유상석(Sangseok Yu),차한주(Hanju Choe) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
We developed fuel cell virtual vehicle platform which can be used for various simulations, to help FC vehicle development. The developed FC virtual vehicle platform consists of FC system module, motor powertrain module, drive module, longitudinal vehicle dynamics module. The modules can be easily replaced of by other types of modules to construct various FC models. To verify this capability, the simulation of FC virtual vehicle platform has been carried out.
전기구동 그린카 시뮬레이션을 위한 견인 모터 및 제어기 모델 개발
박상철(Sangcheol Park),임용래(Yongrae Im),최장영(Jangyoung Choi),김성수(Sung-Soo Kim) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
Recently, due to the resources and environment problem, the green energy vehicles have been developed. The motor and its controller are most important parts. In this paper, the mathematical model of the interior permanent magnet synchronous motor and its controller has been developed for the simulation based design of the green energy vehicles. The dynamics parameters of the model can be easily changed during the simulation. The developed model has been compared and verified with the commercial program named Autonomie.