• Journal of Mechanical Science and Technology
• /
• v.17 no.12
• /
• pp.1969-1976
• /
• 2003

In the early phases of the product life cycle, Life Cycle Assessment (LCA) is recently used to support the decision-making for the product concepts, and the best alternative can be selected based on its estimated LCA and benefits. Both the lack of detailed information and time for a full LCA for a various range of design concepts need a new approach for the environmental analysis. This paper explores a new approximate LCA methodology for the product concepts by grouping products according to their environmental characteristics and by mapping product attributes into environmental impact driver (EID) index. The relationship is statistically verified by exploring the correlation between total impact indicator and energy impact category. Then, a neural network approach is developed to predict an approximate LCA of grouping products in conceptual design. Trained learning algorithms for the known characteristics of existing products will quickly give the result of LCA for newly designed products. The training is generalized by using product attributes for an EID in a group as well as another product attributes for the other EIDs in other groups. The neural network model with back propagation algorithm is used, and the results are compared with those of multiple regression analysis. The proposed approach does not replace the full LCA but it would give some useful guidelines for the design of environmentally conscious products in conceptual design phase.

• The Journal of the Korea Contents Association
• /
• v.4 no.3
• /
• pp.115-123
• /
• 2004

This study suggests the output of the fingerprint doorlock design development through the structured methodology of concept selection in the process of design development, after characterizing the doorlock product itself. All of the early phases of product development are very important on eventual product success. Concept selection is the process of evaluating concepts with respect to customer needs and other criteria, comparing the relative strength and weaknesses of the concepts, and selecting one or more concepts for further investigation or development. To obtain the ideal concept o( new product, this work used a two-stage concept selection methodology which consist of concept screening and concept scoring. As a result, this study represents the fixed design rendering for mass production.

• Journal of Korea Game Society
• /
• v.10 no.2
• /
• pp.3-10
• /
• 2010

Game design as an academic discipline is still in the early developing stages and the lack of fundamental study has seen game designers cloning other games with only superficial changes added to them. Game market today is going through unprecedented expansion with games for more diverse users and variety of game styles. Such trend owes to the fact that formal structures of the game can be manipulated to formulate creative and experimental forms. This paper will focus on the 'boundary' element of the game that could broaden the perspective of the game into different possibilities with emerging mobile technologies, public design's new interpretation of urban spaces and integrating interactive technologies in different phases of art.

• Journal of Korea Society of Industrial Information Systems
• /
• v.3 no.1
• /
• pp.67-77
• /
• 1998

Reliability growth testing used to evaluate reliability in the automobile industry have not always been able to correctly address reliability concerns with increased confidence. The demand to confirm to all product performance requirements under various operating environments has added to the complexity of accurately assessin theproduct's reliability in the required development time. In addition, it is often desired to determine the relationship of a product's reliability to cost, development time, design, manufacturability and assembly. This paper presents the methods for reliability growth modeling to evaluate and interpret reliability concerns to support the reliability analysis of automobile assemblies and systems. This reliability growth modeling process is a mechanism to help "build in" reliability during early phases in the vehicle devleopment stage.

• Proceedings of the KSR Conference
• /
• 1998.11a
• /
• pp.288-295
• /
• 1998

In this paper the system safety program plan(SSPP) for the development of Korea high speed railway system was presented. The plan for the design phase built up base upon MIL-STD 882C, manual for the development of rail transit system safety program plans by American Public Transit Association, and SSPP for Seoul-Pusan High Speed Rail project should be modified and then applied to the phases of manufacturing, test and commissioning. The plan deals with the safety program, the reference standards, the management and responsibility for the safety related activities, the methods to be used for early identifying safety critical items and functions and eliminating or controlling all hazards in a timely and cost-effective manner, and the documentation generated for safety assessment.

• Korean Institute of Interior Design Journal
• /
• no.1
• /
• pp.39-45
• /
• 1992

Today the design is recognized as indispensible part in business activities and it is demanded as one of the management strategies. since the ultimate goal of a hotel lines in the pursuit of profit, it is important that the design of a hotel faithfuly reflects the demands of management at the time of its construction planning. Furthermore, hotel planning undergoes a complicated design phases on a large scale, thus, utilization of a design process that accomodates retional approaches scientific and structural design activities, which will further reduce errors in design steps and pave a way for effective attainment of the target. Especially the management and designers review and confirm the design in relation to the strategic manegiable objective sat the early basic stage. The baseline set here will serve as a direction for the detailed design. In this context, this thesis formulates a reference baseline in dividing the space in view of the overall profitability and is based upon a survey conducted on the correlation between the operation of food and beverage section and the space. First, downtown hotels now take on the role of a public facility to a great extent and the number of Koreans who visit the autxiliary facilities of hotel increases. Second, recently revenue from a food and beverage section is in downtown and the trend is especially obrious at western restaurant, buffet and bar. This necessitates the reevaluation of the business space allocation. Third, sales promotion plan includes diversification, dessection and scaling down of the food and beverage section areas, Fourth, a proper number of seats must be determined in regard to the average area of one seat shown in the survey. Fifth, dense seat arrangement would entail a curtailment rather than a hike in revenue. Sixth, the installation of private dining room is on the rise and in particular, in Japanese and Chinese restaurants. Seventh, business space with declined revenue tends to induce the integration of similar businesses.

• Korean Journal of Environment and Ecology
• /
• v.26 no.4
• /
• pp.604-619
• /
• 2012

According to the concept of woodland aesthetic in Germany and forest design in United Kingdom, artificial forest should be restore ecologically step by step in National Park, Korea. This study was carried out to provide the density criterion of thinning for the inducement of the ecological succession by analysing of vegetational structure in Artificial Forest, National Parks. Eleven plots(size is $20m{\times}20m$) were set up in the artificial forest such as Pinus koraiensis forest, Abies holophylla forest, Chamaecyparis obtusa forest, Populus tomentiglandulosa forest, and Larix kaempferi forest and in the natural forest such as Pinus densiflora community, Pinus densiflora-Quercus serrata community, and Quercus serrata community in Chiaksan, Songnisan, Deogyusan, and Naejangsan National Parks, Korea. We classified the artificial forest into undeveloped type of succession, type of alien young trees developing, and early phase type of succession based on the vegetational structure. According to the index of Shnnon's diversity(unit: $400m^2$), undeveloped type of succession was ranged from 0.9681 to 1.1323, type of alien young trees developing was ranged from 1.0192 to 1.1870, early phase type of succession was ranged from 1.3071 to 1.3892, and natural vegetation was ranged from 1.2202 to 1.3428, therefore early phase type of succession forest and natural vegetation are more higher than simple-layered artificial forest with one needle leaf tree species. The limit for the step-by-step thinning was in the range of 30~60%. In case of undeveloped type of succession, we should thin out from large trees throughout three phases, because alien species dominated high value 88~90% in canopy layer. In case of type of alien young trees developing, we should thin out from alien young trees such as Populus tomentiglandulosa throughout one or two phases, because alien species dominated high value 60~97% and young trees with saplings growing up in understory and shrub layer. In case of early phase type of succession, we should thin out from alien trees that compete with native species throughout one or two phases, because alien species dominated less than value 30%.

• Journal of the Korea Fashion and Costume Design Association
• /
• v.10 no.1
• /
• pp.79-97
• /
• 2008

This paper is a study on the Bisotun relief of the Achaemenid Dynasty in ancient Persia. The Bisotun relief consists of the relief and the inscriptions which was completed through 7 phases. The inscriptions describe how King Darius suppressed the rebels in Elamite, Babili and ancient Persian languages. This relief is a work during the early Darius period and it describes using the traditions of Mesopotamia in terms of the theme and structure. In terms of structural features, it follows the typical features of the Assyrian arts, the beard and the shape of hair style. On the other hand, the smooth curves used to describe the creases of the clothes and the supple body was not a typical oriental feature. It was known to be because of Greek influence from their communications. It also showed the dressings of the clans that made up the Achaemenid Dynasty through the 9 rebellions wearing clothes unique to their clan and the inscription that was inscribed with the name of the clans. The clothing and ornaments they were wearing can be divided into two groups, the clans that wore one-piece style Persian dress and clans that wore tunic jackets and trousers which is a typical dressing style of the nomads.

• Journal of the Korea Fashion and Costume Design Association
• /
• v.15 no.2
• /
• pp.91-107
• /
• 2013

Aesthetic values reflecting the phases of the time are well represented in the clothing styles in paintings. Especially, modern German romantic artists' ideologies on the essence of nature and life are reflected in the figures of paintings. This paper aims at finding out how the sublime beauty of German romantic clothing styles is represented in the paintings of Caspar David Friedrich. The research is summarized as follows. First, the German romanticism led the modern romanticism and was especially enthusiastic about the sublime beauty of arts. Second, the sublime means the exaltation of passionately soaring souls and has the mysterious transcendence that unpleasant feeling is elevated to pleasant feeling inside men who are so feeble compared with vast nature. Third, the male and female clothing styles in his paintings represent the religious, contemplative, paradoxical, transcendental, liberating sublime beauties of the German romanticism. Accordingly, a study on the sublime beauty of the German romantic clothing styles will renew the interpretation and aesthetic values of early modern clothing.

• International Journal of Aeronautical and Space Sciences
• /
• v.12 no.3
• /
• pp.283-287
• /
• 2011

Science and Technology Satellite-3 (STSAT-3) is a 150 kg class micro satellite based with the national space program. The STSAT-3 system consists of a space segment, ground segment, launch service segment, and various external interfaces including additional ground stations to support launch and early operation phases. The major ground segment is the ground station at the Satellite Technology Research Center, Korea Advanced Institute of Science and Technology site. The ground station provides the capability to monitor and control STSAT-3, conduct STSAT-3 mission planning, and receive, process, and distribute STSAT-3 payload data to satisfy the overall missions of STSAT-3. The ground station consists of the mission control element and the data receiving element. This ground station is designed with the concept of low cost and high efficiency. In this paper, the requirements and design of the ground station that has been developed are examined.