• International Journal of Fluid Machinery and Systems
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• v.2 no.4
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• pp.383-391
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• 2009

Vibrations at different frequencies with a different intensity as well as a pressure pulsation with different parameters are two phenomena which can be observed at different water turbines. Due to the vibration and the pressure pulsation some restrictions of water turbine operation range are applied. Similar problems with the efficiency level in a wide water turbine operation range are the basic problems which are solved for ages. A theoretical and practical solution of the above mentioned problems is very much time and money consuming. The paper describes a new theoretical solution of the excitation and pressure pulsation decrease as well as extension of the operational range with high efficiency level. The new concept to decrease the vibrations and pressure pulsations is based on a heterogeneous runner blade geometry generation. The new concept of the runner geometry design was numerically tested at a low specific speed pump turbine, see Fig. 1, and basic points of the concept are presented in this paper.

• Korean Institute of Interior Design Journal
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• v.18 no.3
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• pp.3-10
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• 2009

This study looks into the change of the concept of museum and the programs as well from sociocultural point of view Since the very beginning in history, the museum has been a place to educate people with diverse evidences regarding on the human history by preserving legacies of the past. Throughout the long history, the concept of museum and its programs have been revised in accordance with social changes. Consequently, these changes brought the transformation of museums' roles nowadays. The reason is the public in diverse society are so accustomed to stimulus and dynamic cultural changes has induced those change in some senses. The study points that the variation of museum programs are to be developed and museum marketing strategies including global management of art museums should seriously be considered. It also brings new form of museum architecture. The concept of revitalizing museum can expand the band of public and provide them opportunities a place for various cultural activities which can lead a new trend in this society.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2007.05a
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• pp.255-259
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• 2007

Contemporary society is a digital and information-oriented society and a change by digital and information-oriented has made a new society principle and creature. The principle and creature has made society changed having influence on office space. The 21st century business space attachs great importance to the public space as the value of work place, namely, the place of gathering and client meeting which is society space and a thing which grants it with the biggest investment worth is a new order. This kind of society change has been making an appearance in contemporary office space as features of Narrative, Nodal, Neighbourly, Nomadic. These kinds of trends which are not exclusive mutually are stipulated as new trials to business space holding a lot of overriding features in common. These kinds of features brought into relief according to society change can be seen as key words speaking for contemporary office space and have a significance to contemplate and study for the office space of a new concept made an appearance together with society change. It is expected to contribute to revitalization programs with the far-reaching effect of understanding about ideal office work circumstances and work shape which the 21st century wants standing on the features of these new concepts.

• Journal of Korean Institute of Industrial Engineers
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• v.25 no.4
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• pp.459-465
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• 1999

A new-concept VDT workstation chair with adjustable keyboard/mouse support was proposed to minimize physical discomfort and the risk of cumulative trauma disorders (CTDs) at work sites in this study. First, a three-dimensional human modeling tool $(SAFEWORK^{(R)})$ was used to design the new chair satisfying the anthropometric specifications of Korean population. Second, based upon the result of 3-D graphical simulation, a mock-up chair was constructed with an adjustable keyboard/mouse support directly attached to the chair body. Third, muscle fatigue and subjective discomfort were measured to evaluate the newly developed chair. An experiment was conducted to compare the new workstation chair to the traditional computer chair without keyboard/mouse support. Six volunteer subjects participated in six one-hour word-processing sessions with two different chairs and three different postures. Statistical results indicate that the new-concept VDT chair generally improved subjective comfort level and reduced fatigue in finger flexor/extensor and low back muscle. In conclusion, this new VDT workstation chair is expected to reduce physical discomfort and prevent occupational CTD problems in the long run. Implications of the new design and suggestions for the further development are also addressed.

• Archives of design research
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• v.14 no.3
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• pp.69-76
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• 2001

In the new product development process, concept testing which screens ideas with the highest probability of market success is very effective in predicting the success of a new product. However, designers do not have accurate guidelines in new product development because the structure of cause and effect of consumers' preference - the most important part of concept testing - has not been provided as quantitative data. Therefore, the aim of this study is to present guidelines for new product concept development through applying means-end chain theory and product form theory which explains what kinds of benefits cause consumers to purchase a product and what kinds of design attributes meet the benefits. In this study, after reviewing means-end chain theory and product form theory, and developing a research model, guidelines for a concept product development (TV are provided through an empirical study.

• Hwankyungkyoyuk
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• v.19 no.1 s.29
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• pp.80-89
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• 2006

The purpose of this study is to elucidate the concept of the internal value of environmental education (EE), and to present a new concept of 'Inquiry-Based EE' as a method to realize the internal value of EE. Since the introduction of EE, the 'external' value has been overwhelmingly present, as is shown in the commonly expressed purpose of EE. The ultimate goal of EE has been considered as to solve environmental problems through educational approach, which is important, but external value in relation with education. Generally, education has its own value, which may be more important than external value. But in EE area, that idea has not been discussed much. So, this study argued that EE has, or should have, the internal value of education. This study also examined the concept of inquiry, and presented it as two types of inquiry: the scientific inquiry and the 'insightful inquiry', and argued that the insightful inquiry is important as well as scientific inquiry in EE. Then, this study presented a new concept of 'inquiry-based EE', which can be defined as EE that is based on both the scientific and insightful inquiries, and makes the student be able to 'see' the world with the environmental world view. Lastly, this study presented also a new concept of 'Environmental Studies for EE, (ESEE)'. This means that the traditional environmental science is considered to be not well developed under the perspective of EE. From this viewpoint, this study presented the needed contents of the conceptually presented ESEE. In short, this research asserts that 'inquiry-based EE' is needed to make students 'see' the world environmentally, which is the very important value of EE, the internal value of EE, not very much examined. The 'inquiry-base EE' is considered to possibly advance EE as a new paradigm.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2006.11a
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• pp.40-54
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• 2006

Recently, Kim and Mauborgne [40] has introduced the concept of blue ocean strategy that provides quantum leap in value innovation, thus creating new market space. This study, based on the blue ocean strategy concept, suggests blue ocean new product development strategy (BONPDS), and attempts to examine how much this BONPDS has impact on new product peformance, compared to existing new Product development strategy Perspectives (i.e., competitive strategy-based new product development strategy and resource-based new product development strategy) in an empirical way. The research result shows that the BONPDS has greater impact on new product performance than existing new product development strategies. In addition, it is revealed that such contingency variables as firm size and environmental dynamism have moderating effect on the relationship between the BONPDS and new product performance. The BONPDS is more effective in the small-sized firms than the large-sized ones, and its effect on new product performance is different according to environmental dynamism.

• Journal of the Korean Society of Systems Engineering
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• v.10 no.1
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• pp.33-41
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• 2014

New design concept of Reactor Coolant System (RCS) including a reactor assembly for the SMR is introduced in this work. An exploration of new type of reactor that is advanced from proposed SMRs is performed by using systems engineering approach. In this point of view project structured on three main phases; needs analysis (NA), concept exploration (CE), and concept definition (CD). Main objectives as an output of the CE stage are a small size, low cost, shortening the schedule, and enhancing safety. The SMRs usually have a small size requirement. In order to meet the size requirement and to achieve a productivity, in other words, easiness to manufacture, this paper suggests an integrated PWR design concept through researching predecessors. Although the integrated PWR concept provides many advantages, it has disadvantages that composite of maintenance and a low availability problem. Therefore, this paper comes up with a run-to-fail design concept based on modular design to address the maintenance problem and to maximize the availability of SMRs as well as to be compatible with the overall-SMRs including Barge Mounted(BM)type.

• Journal of Korea Technical Association of The Pulp and Paper Industry
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• v.34 no.5
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• pp.63-69
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• 2002

A new concept of stock preparation for the increase of bending stiffness in paper and board was proposed. The "stiff" fibers, which were mechanically not treated or treated slightly to remove fiber curls, were combined with extensively refined fibers (ERF) to produce higher stiffness papers than those where the whole fibers were refined. The combination of "stiff" fibers and extensively refined fibers produced higher stiffness at the same tensile strength than the control furnish, in which all the fibers are refined together. In this concept, the fibers from recycled papers could be as much useful as the virgin fibers as long as they are stiff enough or they can produce highly bondable fiber fractions by extensive refining. Use of the concept in real paper mill needs considerations such as increase of refining energy, slower drainage, and added drying burden, but savings of wood fibers, utilization of more recycled fibers, and increase of physical properties may offset the negative concerns. The success of this concept implementation in mills, therefore, depends on the wood fiber market around the mills and the proper decision making for the papermakers about how to apply this concept. apply this concept.

• Journal of Science of Art and Design
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• v.2
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• pp.193-221
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• 2000

The postmodern culture since the later 20C breaks downa tradition a relation between the reality and languages or sign images expressing it. It develops in the way to review the meaning on the object's imitation or the representation to have been followed since Plato and represent the new state and concept of expressed things. Also, The visual art leads an change of paradigm by images giving up the visual resemblance or the function of representation and endowing them with the new sense. This essay has a purpose to study an important discussion about this change centered on Baudrillard and Lacan. A sociologist Baudrillard promotes the concept of 'simulation' through detecting the reality and the social and historical state of the image. Studying on the course of this change, he calls the step that the image escapes from the stage to reflect the reality and become the pure imitation by itself simulation. The image in the stage of simulation is called 'hyperreality' because it doesn't have any an indicator or a substitute and happens by models without the original or the reality. So he asserts that art is not to contain some absoluteness or transcendency as the past, but to be as the spectacle with characteristics of meaningless, emptiness, contingency. Lacan dismantles the concept of the absolute Cogito to have become the center of the western ideology, and creates the concept of 'Other'. He concludes also the reality exists but can't be captured, and it's impossible for the thinking subject can reach it. The concept of new image which can be thought as the Symbolic in Lacan is 'Signifier without Signified' since it isn't possible to be the transcendent Signifier fixing the meaning finally in it. His 'Gaze' theory is which to be emitted in other's area determines the subject. Equally Baudrillard and Lacan sets up the new state of the image through the end of representation system As for Baudrillard, art intends to the worthlessness and is nothing but imagination. But in Lacan a picture represents the subject being in process by the dialectic of desire.