• Journal of the Korean Institute of Educational Facilities
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• v.13 no.3
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• pp.56-65
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• 2006

The multipurpose auditoriums in schools are the center of local community and the places of their life-long education. The multipurpose auditoriums are to be open and made available for use by local public as far as it does not interfere with the education of the schools. However, most of them are not open to public on the pretext of management problems while demands of local communities for the opening of the facility is rising. The role of the multipurpose auditorium as the place of physical training and its maximum availability to local community have be taken into account of from its design stage. The location of the auditorium itself has to be close to the main entrance of the school for easy access, its facilities located in one common area, their management and maintenance scheme adopted appropriately but legally, and then security and safety measurement have to be devised. Also, more studies are necessary to propose detail regulations for local sports facilities and to develop their interrelationship and network, in connection with sophistication of school facilities and BTL system.

• Korean Institute of Interior Design Journal
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• v.15 no.5 s.58
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• pp.209-220
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• 2006

The goal to establish one multipurpose senior center in one district of Seoul city has been nearly completed. However, since it is behind the schedule by about 6 years, nearly all senior centers are saturated currently. Therefore, additional foundation plan of senior centers is in progress. Also, the main function of the center has changed from health and leisure to various welfare programs that the elderly living in a community need. In order to supplement these problems, many existing senior centers are using center to the most through addition and change of rooms. To establish the direction of spatial plan at establishing senior centers according to the regional characteristics, 20 cases of Seoul multipurpose senior centers in operation were site surveyed and the results of spatial features by types established and changed corresponding to each condition were suggested as follows: 1. The types were classified according to the shape of floor plan, sectional planning, entry traffic line, linkage with attached facilities and addition method etc. by the characteristics of the elderly in multipurpose senior centers, program operation, linkage of spatial composition by the function, positional relation between centers, management and operation method, and center complication method etc. and the respective features were suggested. 2. By analyzing the gross floor area and the area of each room of senior centers, the features of area by types and the features of area by each detailed center were suggested.

• Journal of The Korea Institute of Healthcare Architecture
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• v.12 no.3
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• pp.7-14
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• 2006

The purpose of this study was to analyze the elderly welfare facilities in Germany, which already entered into the aging society. Especially, the multipurpose and large elderly welfare facilities, where more than 50 elderly people lived, were analyzed. For this purpose, a field study was conducted between January 13 and February 3, 2005. This study tried to find out the architectural characteristics and trends of elderly welfare facility. There are about 9200 elderly welfare facilities in Germany, and about 7% of the elderly people over 65 years old live there. As for the multipurpose elderly welfare facilities, there are about 5800 facilities, 64% of the total facilities. The elderly welfare facility carries out single function at the early stage, and adds up another functions step by step. In general, the facility is managed with focusing on two main functions (care function and residential function). In a small town, the care function is the major one of the facility. However, in the city, the major functions of the facilities are both care and residential function, which are elderly residence or safeguard house.

• Journal of the Korean Institute of Educational Facilities
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• v.12 no.1
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• pp.29-40
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• 2005

The purpose of this study is to comprehend the utilization, the establishment and the claim of multipurpose space which was corresponded to the 7th National Curriculum, and to examine the use of multipurpose space. The subjects of this study are new or second amenable elementary schools. The conclusion of this study is as follow. 1) Teachers partly agree to the induction and the direction of the 7th National Curriculum, but they think that it is too early to carry it out and most of them think that it is better than old curriculum. 2) According to a report of contentment of multipurpose space, most of teachers are satisfied by multi- purpose space. The main factor responded by 59.8% of total respondents is to study variously. It means teachers highly evaluate the need of various system of studying. 3) The depth of a multipurpose space including the depth of a hallway is suitable 7.2m as 31.3% of respondents and 6.0m as 30.4%. 4) The main factor of dissatisfaction is noisy and ventilation because of the protection between the multipurpose spaces.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 2008.04a
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• pp.436-440
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• 2008

Among those various facilities attached to the school building, the Auditorium is being utilized for not only the Exercise Activity but also for many purposes such as Culture, Public Performance, Education, Assembly and so on. In order to utilize in maximum such function of the multipurpose auditorium, an adequate acoustic design with regard to the Clarity of Voice and Music in accordance with its use-purpose should be accompanied. However, as the most part of multipurpose auditoriums is designed with high ceiling-height by its peculiar character, and due to use of the material of strong reflexibility, it is appearing the defect that excessively exposes the reverberation of sound. In order to make out an optimal acoustic condition within the broad space such as an auditorium, the acoustic characteristics must be considered from the planning stage, however in the most case, those acoustic problems are being settled through the repair works after construction. On such viewpoint, this Study intends to analyze the room acoustic characteristics from the planning stage using a computer simulation based on the blueprint of multipurpose auditorium in S High School located in Gwangju. It is considered that the material analyzed in such way could be practically applied as a fundamental material enables to improve the acoustic capability when a similar broad space is planned hereafter.

• Journal of the Korean Solar Energy Society
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• v.27 no.3
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• pp.15-21
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• 2007

The purpose of this study is to provide the basic data for passive control and energy conservation strategies of multipurpose greenhouse. Passive design strategies which are appropriate to Jeju environmental circumstance were applied in the multipurpose greenhouse. The field measurement were conducted to examine relationship of micro climate and indoor thermal environment in the multipurpose greenhouse. The result of this study can be summarized as follow ; (1) The indoor temperature was ranged from 5 to $21^{\circ}C$ without a heating system, when the exterior temperature was -1 to $19^{\circ}C$. (2) The multi-purpose greenhouse requires almost no heating energy in winter, when it is used as a greenhouse, an exhibition hall or a cafeteria.

• Journal of Ocean Engineering and Technology
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• v.13 no.4 s.35
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• pp.143-150
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• 1999

Multipurpose fisheries base was conceptually designed to establish marine ranching system in the coastal waters around Tongyoung, southern sea of Korea. Fisheries base for marine ranching system has integrated various facilities which were required for the process of spawning, rearing, training, releasing, monitoring and catching functions. This base has five steel piles for supporting upper structure and systems. Four steel piles are surrounded by circular net pen made by steel wire, they have the function of the protection against fouling for pile and scouring for bottom soil as well as secondary rearing and short stocking. We can use the last pile to moor a ship and access to the base. Principal structure with steel piles is designed by optimization technique considering design external forces in the coastal waters of return period of 50 years. Design optimization Problem is formulated for this base. Optimal design of multipurpose fisheries base is numerically investigated by sequential quadratic programming method.

• Korean Journal of Hydrosciences
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• v.4
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• pp.65-79
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• 1993

Selection of the best operating rule among a set of alternatives for a multipurpose reservoir system operation requires to evaluate many minor criteria in addition to the major objectives assessed to the system. These problems are sufficiently complex and difficult that they are beyond heuristic decision rules and experiences in case several noncommensurable multiple criteria are included in the evaluation. With the assistance of multicriterion decision analysis techniques, it is possible to select the best one among various alternatives by systematically comparing and ranking the alternatives with respect to the criteria of choice. Evaluation criteria for multipurpose reservoir system operating rules were identified and defined, and the multicriterion decision analysis techniques were applied to evaluate the four existing operating rules of the Chungju multipurpose project according to the identified nine multiple criteria. The application results show that the methodology is very efficient to select the best operation alternative among a finite number of operating rules with many evaluation criteria for a large-scale reservoir system operation.

• Journal of Korea Society of Digital Industry and Information Management
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• v.12 no.2
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• pp.31-39
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• 2016

In this paper planed Virtual Reality user interface that recently hot issue using MVLS(Multipurpose Visual Language System). Proposed system is planed for more with ease approach new type environment system. The point of this system is for more few the number of time of act to get want to result. That is easy build for Virtual Reality environment system that user so far, who did not experience. Also too, application to the environment through Multipurpose Visual Language System based, can be required to increase the case of user of existing applications, not only a simple application infrastructure Virtual Reality. This has the advantage of being able to under Virtual Reality condition the environment for the use of a wide range of applications such as view TV, video and other contents. By using the proposed system, the experience in virtual realities that have not felt during the general public to be able to easily and quickly, virtual reality or 3D Expected to can one step closer to the needs of general and industry.

• Journal of Information Processing Systems
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• v.19 no.6
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• pp.756-766
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• 2023

To effectively track the illegal use of digital images and maintain the security of digital image communication on the Internet, this paper proposes a reversible multipurpose image watermarking algorithm based on a deep residual network (ResNet) and perceptual hashing (also called MWR). The algorithm first combines perceptual image hashing to generate a digital fingerprint that depends on the user's identity information and image characteristics. Then it embeds the removable visible watermark and digital fingerprint in two different regions of the orthogonal separation of the image. The embedding strength of the digital fingerprint is computed using ResNet. Because of the embedding of the removable visible watermark, the conflict between the copyright notice and the user's browsing is balanced. Moreover, image authentication and traitor tracking are realized through digital fingerprint insertion. The experiments show that the scheme has good visual transparency and watermark visibility. The use of chaotic mapping in the visible watermark insertion process enhances the security of the multipurpose watermark scheme, and unauthorized users without correct keys cannot effectively remove the visible watermark.