• Architectural research
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• v.1 no.1
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• pp.55-61
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• 1999

In reinforced concrete design, structural member sizes and amount of reinforcing steel areas are usually selected based on the structural designers' experience. Most existing charts provided for the design of reinforced concrete structural members were developed mainly based on force equilibrium conditions and some serviceability criteria. Sections selected from these charts may not result in an economic solution in terms of material costs as well as construction costs. Practical design aids are developed and suggested in this study for the economical design of reinforced concrete beam under flexural loading. With the beam width fixed, the depth of a beam, positive steel areas and negative steel areas are found from Khun-Tucker necessary conditions with Lagrangian multipliers to minimize the sectional cost of a beam. The developed design aids might be useful in selecting optimum reinforced concrete beam sections. Theoretical derivations and use of the developed design aids are described in this paper.

• Korean Journal of Computational Design and Engineering
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• v.5 no.4
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• pp.373-379
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• 2000

This paper deals with the study of distributed design system and the implementation of JAVA based initial design system using CORBA/sup [1-3]/. In the state of initial design, designer should consider other information related to a design part. In this case, designer has a difficult problem to search and calculate distributed data. We propose a special connector named ‘Allocator’and implement an initial design system AIDS(Agent based Initial Design system). AIDS can help designer search and calculate the distributed information. In this study, JAVA and CORBA were chosen for handling network and distribute programming. AIDS focuses on the possibility of incremental concurrent design capability. AIDS is comported of Request-Agent, Calculator-Agent, View-Agent, Search-Agent, and ‘Allocator’. The proposed system can be used for designing initial design of a gripper in the web regardless of operating system.

• Proceedings of the KIEE Conference
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• 2004.11c
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• pp.577-579
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• 2004

Digital hearing aids enclose $6{\sim}8$ tiny components. Those electromechanical components are individually wired by soldering which is a manual labor and sometimes causes components' damage by heating. This paper suggests a PCB design for overcome these problems. Several PCBs are designed and manufactured and circuited to produce ITE(In The Ear) type hearing aids which are inserted in the ear canal. The most optimal size of the PCB design for the ITE hearing aid is presented in this paper.

• Proceedings of the KSME Conference
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• 2004.11a
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• pp.1012-1015
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• 2004

Digital hearing aids enclose $6{\sim}8$ tiny components. Those electromechanical components are individually wired by soldering which is a manual labor and sometimes causes components' damage by heating. This paper suggests a PCB design for overcome these problems. Several PCBs are designed and manufactured and circuited to produce ITE(In-the-Ear) type hearing aids which are inserted in the ear canal. The most optimal size of the PCB design for the ITE hearing aid is presented in this paper.

• Journal of The Korean Digital Architecture Interior Association
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• v.13 no.1
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• pp.15-22
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• 2013

Recently, the korean statistical information service reported that the elder people aged over 65 years take 11 percentage point of all population, indicating that the hyper-elder era will advent shortly. As a result, there are remarkably increasing demands for providing self-organizable home agent system for elder people. Of the home agent system, the ubiquitous home service is known to be useful to overcome this problem. However, current ubiquitous home services limited to provide functional services, and it can be observed that there is lack of consideration for elder-support products which are closely interacted with elder people in the living situation. In this paper, we analyze senior aids products that can be combined to the ubiquitous home service, and propose design procedure for senior aids products that can be applied to self-organizable ubiquitous services. We studied characteristics of elder people, current state of affairs for senior aids products, and home services that are highly required by elder people. Moreover, we observed that the ubiquitous home services related to health, safety, and amenity are urgently needed, and those services can be categorized according to residential areas. Following those observances, we proposed a design principle based on the universal design paradigm to provide self-organizable ubiquitous home service environment for elder people using senior aids products.

• Management Science and Financial Engineering
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• v.3 no.2
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• pp.1-27
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• 1997

Designing effective navigation aids for customer interfaces is critical for the success of cyber shopping malls. Navigation aids can be classified into either basic ones which are based on the structure of the malls or add-ons which are not. Add-on navigation aids provide various short-cuts to promote efficient traversal in the cyber shopping malls, but too many of them would increase the complexity of the customer interface. Metaphors have been used widely for the design of add-on navigation aids, but little research evaluates their impact on the processes and outcomes of customers behavior in cyber shopping malls. This paper presents an empirical study that investigates the navigation process of customers and the subjective evaluation of their shopping experience. This research implemented two versions of a test-bed cyber shopping mall according to different metaphors used; one based on a spatial metaphor, and the other based on a non spatial metaphor. The results of the experiment indicate that navigation aids based on the spatial metaphor were used more frequently, which resulted in better understanding about the entire structure of the cyber shopping malls, which in turn led to an increased ease of finding target items and also a more pleasant shopping experience. The benefits of navigation aids based on the spatial metaphor became more evident when customers were looking for ad-hoc category items rather than common items. This paper presents plausible explanations for the results and implications to the design of navigation aids for cyber shopping malls.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2001.01a
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• pp.473-477
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• 2001

Artificial neural network (ANN) is known to identify relationships even when some of the input data are very complex, ill-defined and ill-structured. One of the advantages in ANN is that it can discriminate the linearly inseparable data. This study presents an application of ANN to classify and predict the symptomatic status of HIV/AIDS patients. Even though ANN techniques have been applied to a variety of areas, this study has a substantial contribution to the HIV/AIDS care and prevention planning area. ANN model in classifying both the HIV and AIDS status of HIV/AIDS patients is developed and analyzed. The diagnostic accuracy of the ANN in classifying both the HIV status and AIDS status of HIV/AIDS status is evaluated. Several different ANN topologies are applied to AIDS Cost and Services Utilization Survey (ACSUS) datasets in order to demonstrate the model\`s capability. If ANN design models are different, it would be interesting to see what influence would have on classification of HIV/AIDS-related persons.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.14 no.4
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• pp.515-523
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• 2007

Purpose: The purposes of the study were to determine the effects of AIDS education which includes discussion on knowledge, prejudice, social interaction, and intention for AIDS prevention in college students. Method: A convenience sampling method was used to collect data, and 136 university students participated in the study. One group pretest-post test design was used and questionnaire for measuring knowledge about AIDS and attitude to AIDS were administered before and after 100 minutes of AIDS education, The education program consisted of a 50-minute lecture with video aids and 50 minutes of small group discussion. Means, SD, and paired t-test with the SPSS program were used to analyze the data. Results: There were significant increases in knowledge(p= .000) and social interaction(p= .002) after the education, but no significant changes in prejudice(p= .832) nor in intention for AIDS prevention(p= .074). Conclusion: AIDS education including discussion was found to be an effective method for improving knowledge and social interaction of college students. The results suggest that education which includes discussion sessions should be used with college students to improve social interaction with people who are HIV positive and enhance knowledge about AIDS.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.10 no.3
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• pp.383-391
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• 2003

Purpose: A study of university students was conducted to explore their prejudice toward AIDS, social interaction with AIDS patients, and intention to practice AIDS preventive measures. Method: This study used a cross-sectional descriptive survey design. A self-reported questionnaire was completed by 145 university students. Data were analyzed using descriptive statistics, t-test, and ANOVA with SPSS 11.5. Result: The mean score for prejudice toward AIDS was 23.54, implying a low level of prejudice toward AIDS by the subjects. The mean score for social interaction with AIDS patients was 20.92, indicating a moderate level of intention for social interaction with AIDS patients. The mean score for intention to practice AIDS prevention was 24,74, assuming a strong intention to practice AIDS prevention. Those who had higher mean scores for AIDS Knowledge showed significantly higher mean scores for social interaction with AIDS patients and intention to practice prevention than those who had lower scores. Conclusion: Research findings showed that university students had a low level of prejudice toward AIDS, a moderate level of social interaction with AIDS patients and a high level of intention to practice AIDS prevention. Therefore, a specially designed AIDS education program is needed for university students so as not to provoke fear or stigma toward AIDS patients and to support AIDS patients.

• Korean Parent-Child Health Journal
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• v.9 no.1
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• pp.62-71
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• 2006

Purpose: This study was to evaluate the effects of AIDS education for college freshman. Method: This study was conducted using a pretest-posttest experimental design for one group. Subjects were selected from G college freshman(n=89) in I city. Data were collected from November 5 to December 3, 2004. An educational session took 50 minutes and was conducted once a week. Subjects were given a total of four-session AIDS education. Knowledge and attitude on AIDS was measured before and after the AIDS education using questionnaires. Results: There was a significant difference in the levels of knowledge and attitudes towards AIDS before and after the education. In particular, there was also a significant difference in the attitude subscales(personal and social attitudes). There was a significant positive correlation between the knowledge and attitude. In particular, there was also a significant positive correlation between the knowledge and attitude subscales(personal and social attitudes). Conclusion: The findings indicated that AIDS education is effective in order to encourage correct knowledge and attitudes towards AIDS for college freshman. Therefore, it is necessary to systematically and continuously AIDS education programs to keep healthy sex.