• Journal of the Korea Safety Management & Science
• /
• v.10 no.1
• /
• pp.139-144
• /
• 2008

Recently, a multi-facility, multi-product and multi-period industrial production-distribution planning problem has been widely investigated in Supply Chain Management (SCM). One of the key issues in the current SCM research area involves reducing both production and distribution costs. We have developed an optimization model to tackle the above problems under the restricted conditions such as transportation time and a zero inventory. Computational experiments using commercial tool Ms-Excel Solver show that the real size problems we encountered can be solved in reasonable time. The model can be used to decide an appropriate production-distribution planning problem in SCM research area.

• Proceedings of the Korean Operations and Management Science Society Conference
• /
• 2008.10a
• /
• pp.8-23
• /
• 2008

The purpose of this study is to develop a Cross Impact System Alternatives Tree(CISAT) model necessary for selecting the interdependent R&D planning system alternatives. This model modifies System Alternatives Tree(SAT) model developed by Kwon et al.. The SAT model is composed of several functions necessary for the achievement of a final goal and several subsystems for satisfying each function. In case that the relationship of technology alternatives is interdependent, this model overlooked a relative importance derived from occurrence or nonoccurrence of the technology alternatives in the future time varience. However, a complex evaluation process within the ballot system is another disadvantage of the SAT. To solve such problems, the Cross Impact Analysis(CIA) model is applied in the SAT model so as to consider the cross impact among interdependent system alternatives.

• Proceedings of the Korean Institute Of Construction Engineering and Management
• /
• 2004.11a
• /
• pp.408-413
• /
• 2004

Early planning phase of private development project is an important part in mercy of failure and success of all project. Hut reliability of analysis result existing planning phase in not high to the importance. So we analyzed a basic problem point through case study and research data analysis of planning phase in private development project. After this, there is a cause in no establishment of systemic model about work processing and method of planning phase. We would like to suggest the solution through establishment of planning phase analysis processing and risk management model. We think that suggested analysis method increase the credibility of analysis result. With this, we anticipate we suggest the guideline in project process phase and that assist the effective accomplishment of project.

• Proceedings of the Korea Society of Design Studies Conference
• /
• 1998.10a
• /
• pp.42-43
• /
• 1998

• Hwankyungkyoyuk
• /
• v.21 no.4
• /
• pp.1-11
• /
• 2008

The purpose of this study is to evaluate an environmental education model school and to devise proper plans for school management through the school eco-audit. The results of this study are as follows. Firstly, environmental education model school is analysed from view point of planning and executing. So that, environmental education model school put emphasis on executing rather than planning. It requires to emphasis planning, for example, establishing environment management system, ecological measures, environment reporting. Secondly, environmental education model school is in the incipient stage as the environment prevention. The preparation for planning is inefficient compared to the ecological pretest of school eco-audit. In the aspect of ecological measures and education, the participant of all the school staff is unsatisfactory. In conclusion, the school eco-audit could be presented as a key role for establishing basic organizational conditions, ecological measures and education for sustainable development, It is necessary to drive environmental education model school to achieve extended effect for sustainable society.

• Journal of Korean Society for Quality Management
• /
• v.41 no.1
• /
• pp.149-162
• /
• 2013

Purpose: The purpose of this study was to design of a probabilistic model for optimum manpower planning in R&D department by Montecarlo simulation. Methods: We investigate the process and the requirement of manpower planning and scheduling in R&D department. The empirical distributions of necessary time and manpower for R&D projects are developed. From the empirical distributions, we can estimate a probability distribution of optimum manpower in R&D department. A simulation method of estimating the probability distribution of optimum manpower is considered. It is a useful tool for obtaining the sum, the variance and other statistics of the distributions. Results: The real industry cases are given and the properties of the model are investigated by Montecarlo Simulation. we apply the model to the research laboratory of the global company, and investigate and compensate the weak points of the model. Conclusion: The proposed model provides various and correct information such as average, variance, percentile, minimum, maximum and so on. A decision maker of a company can easily develop the future plan and the task of researchers may be allocated properly. we expect that the productivity can be improved by this study. The results of this study can be also applied to other areas including shipbuilding, construction, and consulting areas.

• Fashion & Textile Research Journal
• /
• v.6 no.6
• /
• pp.815-824
• /
• 2004

In academic and/or practitioner literature, the assortment planning for fashion sensitive products is rarely systematically studied, and organized in an objective format. The purpose of this study was to develop a suggested assortment planning model for women's clothing retail buyers by integrating a conceptual assortment planning model and a practical-use assortment planning model, which are also developed in this study. In developing the conceptual model, this research categorized and organized the pieces of assortment planning activities illustrated in available literature. In developing the practical-use model, ten women's dress buyers from department stores and specialty stores were interviewed. The contents of the interview dictation were classified and summarized by concepts and variables. The summary was validated by the interviewees and recontextualized for the practical-use model. Five experts compared the conceptual and practical-use models, adjusted the discrepancies, and integrated into the suggested model. In addition, a questionnaire asking review of all functional activities of the suggested model was sent to interviewees to ascertain its validity. As the result, assortment planning process was determined at abstract level as the following: (a) recognize problem, (b) search for information, (c) evaluate qualitative value of product, (d) evaluate quantitative value of product, (e) plan product selection, and (f) plan sales.

• Journal of the Korean Society of Environmental Restoration Technology
• /
• v.21 no.2
• /
• pp.27-38
• /
• 2018

Environmental planning includes resource allocation and spatial planning process for the conservation and management of environment. Because the spatialization of the environmental planning is not specifically addressed in the relevant statutes, it actually depends on the qualitative methodology such as expert judgement. The results of the qualitative methodology have the advantage that the accumulated knowledge and intuition of the experts can be utilized. However, it is difficult to objectively judge whether it is enough to solve the original problem or whether it is the best of the possible scenarios. Therefore, this study proposed a methodology to quantitatively and objectively spatialize various environmental planning. At first, we suggested a quantitative spatial planning model based on an optimization algorithm. Secondly, we applied this model to two kinds of environmental planning and discussed about the model performance to present the applicability. Since the models were developed based on conceptual study site, there was a limitation in showing possibility of practical use. However, we expected that this study can contribute to the fields related to environmental planning by suggesting flexible and novel methodology.

• Journal of the Korean Society for Aviation and Aeronautics
• /
• v.24 no.1
• /
• pp.1-9
• /
• 2016

In this paper, we integrate three degree of freedom(3DOF) point-mass model for aircraft and three-dimensional path generation algorithms using dubins curve and nonlinear path tracking law. Through this integration, we apply the path generation algorithm to the path planning, and verify tracking performance and feasibility of using the aircraft 3DOF point-mass model for air traffic management. The accuracy of modeling 6DOF aircraft is more accurate than that of 3DOF model, but the complexity of the calculation would be raised, in turn the rate of computation is more likely to be slow due to the increase of degree of freedom. These obstacles make the 6DOF model difficult to be applied to simulation requiring real-time path planning. Therefore, the 3DOF point-mass model is also sufficient for simulation, and real-time path planning is possible because complexity can be reduced, compared to those of the 6DOF. Dubins curve used for generating the optimal path has advantage of being directly available to apply path planning. However, we use the algorithm which extends 2D path to 3D path since dubins curve handles the two dimensional path problems. Control law for the path tracking uses the nonlinear path tracking laws. Then we present these concomitant simulation results.

• Journal of architectural history
• /
• v.6 no.3 s.13
• /
• pp.45-59
• /
• 1997

One of the main purposes of architectural history is the analysis of existing designs in order to find laws and orders of certain types, while space planning emphasizes the generation of design. In this study, relational space planning methodology is used to generate Chosun upper-class housing prototypes based on 'Yaejae' logic model. During the Chosun Dynasty era in Korea, Confucianism was the ruling ideology for its society. The patio type house was the main upper-class housing type during the Chosun Dynasty, and it can be viewed that space planning was heavily influenced by the law of 'Yaejae' in Confucianism. The logic of 'Yaejae' can be interpreted as relationships between spaces. Relational space planning methodology that reasons through constraint propagation is used to generate prototypes. Prototypes are compared in order to verify actual applications of the logic into space planning.