• Journal of Korean Home Economics Education Association
• /
• v.20 no.3
• /
• pp.145-161
• /
• 2008

The purpose of this paper is to find out the needs of housing contents in highschool Home Economics among students. The 105 housing contents and topics were chosen from the 3 textbooks and related references. The number of 516 questionnaire from 8 areas were used to analyze. Analyses indicated that respondents were more likely to favor Home Economics subject and one out of five wanted to select it. Average needs of the housing contents was above middle(3.4) and these was a little difference among 3 middle units in housing. The most needed unit was housing design. There was a more wide difference in 19 small units than in middle ones, ranged $3.00\sim3.91$. Individual contents showed the most variousness in needs from 2.89 to 4.30 in the middle unit of housing and environments, 3.00 to 4.01 in housing design, and 2.68 to 3.91 in housing management. The needs of additional contents were about the same as those textbook contents and it indicated that new textbook needs to adopt the newly demanded housing contents. Some of individual, family, and environmental characteristics were significantly related to the students needs. The higher positive attitude such as favor, interest, and selecting of the subject was related to the higher needs of housing contents. Residential areas and neighboring were also related to most of the needs of individual housing contents.

• Aerospace Engineering and Technology
• /
• v.2 no.2
• /
• pp.179-185
• /
• 2003

In this study, considerations for establishing RVSM airspace and requirements for RVSM operating aircraft are verified. The purpose of RVSM is to reduce vertical separation minimum for aircraft which operate between FL290~FL410 inclusive in regional airspace, and to increase airspace capacity by providing additional flight levels. To introduce RVSM, it is necessary to estimate quantatively airborne collision risk due to the reduction in vertical separation minimum. Aircraft operating through RVSM airspace is required to verify that height keeping performance is above specific standards.

• Aerospace Engineering and Technology
• /
• v.7 no.2
• /
• pp.196-204
• /
• 2008

Modem rotorcraft is required to have the capability to operate in all-weather conditions. Also icing condition is important issue to aircraft safety and certification. And rotorcraft icing research has come a long way during the past few decades. The aircraft icing is the most difficult to handle. So, icing-related accidents, incidents and operating problems still occur regularly in service, despite improvements in design and test techniques. By reviewing icing certification requirement of FAR(Federal Aviation Regulations) and KAS(Korean Airworthiness Standard), this paper describes methods how to demonstrate safety in the flight and consideration of icing when rotorcraft is required TC(Type Certification).

• 시스템엔지니어링워크숍
• /
• s.4
• /
• pp.182-187
• /
• 2004

Our research proposes how to, systematically, count function point from initial functional requirements based on natural language. Gradually, Function Point Analysis is used to overcome the limitation of LOC(Line Of Code) for estimating software size. Moreover, it plays an important role in cost management. Function point is derived from initial requirements and is determined by experts who have an education for function point. However, currently there are few researches to cout function point by systematic or automatic rules. Through extending our porposed method, we expect that function point is able to be counted automatically or semi-automatically. This would be our future research

• Transactions of the Korean Society of Mechanical Engineers B
• /
• v.26 no.6
• /
• pp.757-764
• /
• 2002

Chlorination dosage in water treatment plant of field is determined by chlorination demand experiment through two or three hours after raw water was sampled in inflow. It is impossible to continuously control for real time because the sampled water is adapted chlorination dosage after water treatment process had been proceeded. Therefore in this study, we will design informal chlorination demand system, this designed system will be experimented as to water quality and accuracy of control in various conditions. Throughout these experimental results, we will revise the system and the revised system is enable to optimal control of chlorination dosage. Finally, we have developed chlorination demand system, which can automatically determination of chlorination dosage to be determined according to variety of raw water quality inflow in water treatment plant.

• 한국신재생에너지학회:학술대회논문집
• /
• 2005.06a
• /
• pp.252-255
• /
• 2005

The effort to realize the concept of stratospheric airship, which can fly at about 20km altitude, has been persevered since late 1980's. Referring to the feasibility study of ensuring the flight duration of the airship over 1year, total weight is about 30 tons, the length is about 200m. There are lots of key technologies to be solved to develop the system, and one of the essential prerequisite technologies is regenerative fuel cell system. In this paper, design requirement of regenerative fuel cell system is introduced with the feasibility study results of the challenging stratospheric airship.

• Proceedings of the Korean Institute of Building Construction Conference
• /
• 2014.05a
• /
• pp.68-69
• /
• 2014

Production of freeform concrete segments use various molds because of the unique shape of it unlike common concrete segments. As a result, the mold for freeform concrete segments cannot be reused. Therefor, cost overrun is occurred by needs of more time and manpower to produce the freeform concrete segments compared with common concrete segments. To prevent the cost overrun, a new production method for the freeform concrete segments is needed to develop and the requirements for it should be analyzed before. Therefor, the aim of this study is requirements analysis for production of freeform concrete segment. The requirements of production of freeform concrete segments and form for it is analyzed in this study. The result of this study would be used to suggest the new production method of freeform concrete segments.

• Aerospace Engineering and Technology
• /
• v.3 no.2
• /
• pp.116-123
• /
• 2004

The SINDA/FLUINT program is used as analysis tool. Thermal model and fluid model are applied for reliable results. By this analysis, the global requirements from System requirement review(SRR) is verified, and the detail requirement of each component is investigated. The results of this analysis is used to set up criterion for selecting proper components.

• The Journal of the Korea Contents Association
• /
• v.9 no.3
• /
• pp.72-80
• /
• 2009

With the development of IT technologies, IT environment is making great change over life whole and is displacing business and business achievement systems of industry at the fast speed. Software development using project management tool is more important because of constructing the consistent and reliable system. So, design and implementation of the project management tool which support data standardization of project is proposed in this paper.

• Proceedings of the Korean Institute of Interior Design Conference
• /
• 2004.11a
• /
• pp.147-148
• /
• 2004

Our society is rapidly digitalizing. The effects of his digitalization are very diverse and one of them is that our living environments are changing. Many routine places which certain activities have been taken places are changing. For example, home office, education at home using internet, home shopping, internet banking, and so on. These facts cause the home to be extended and digitalized. That is, as our living patterns are changing, the housing needs are also changing. The purpose of this study is to graspe the digital related housing needs of the residents and suggest the directions of the digital home design. The subjects were 400 housewives who lived in 85m2 sized multi-family houses in Busan. They were relatively young in their age, had high education level, and middle income. On the base of their demands, the digital home designed as follows would be desirable: 1) safe and secure design and digital system, 2) design to improve residents' health and encourge family interaction, 3) human, warm, and soft interior mood, 4) the space composition different from the existing one.