• Journal of the Korean housing association
• /
• v.25 no.3
• /
• pp.131-143
• /
• 2014

The purpose of this study is to develop an operation manual of resident-driven community program by evaluating community program operation to realize a sustainable apartment complex and vitalize a community. To achieve this purpose, 8 community experts, who are in charge of 42 complexes of 7 autonomous districts among 25 districts in Seoul were interviewed from September 2013 to December 2013. Main results of the study are as follows. 1) Operational problems and improvements are deduced from evaluating operation process of community programs. It is found that smooth cooperation of main operators including a community vitalization association, a resident representative meeting and a control office is the most important. 2) Operation guideline for representative programs are suggested based on analysis of operational characteristics of 3 types of community programs; communication, recycling and environment management, according to program operation elements; material element, programming element, human element and finance element. 3) An operation manual of resident-oriented community program is presented after considering evaluation of operation processes and analysis of 3 types of operational elements of community programs.

• Korean Institute of Interior Design Journal
• /
• no.16
• /
• pp.91-97
• /
• 1998

We have been taught designing process throughout the long period of education. Nevertheless it is hard to make a quick response to actual project However if we are faced with the actual project as a design professionals it is hard to cope with the project at once nothing but ambiguous idea. Also most of designers concemed with the project do not recognize who are responsible for what. Consequently this attitude delays the entire operation causing waste of time and resources and leads to the unacceptable result. This research is designed therefore to come up with the projects control process that is practical enough to encourage interior designers as well as design firms to face actual projects with shrewd response. There is of course no single right answer to certain design projects. But at least there should be a guideline which shows designers more reasonale systematic ways to control design project lest they should waste time and cost : a guideline as an assistance for successful design result.

• Journal of the Korean Society of Safety
• /
• v.32 no.1
• /
• pp.1-8
• /
• 2017

In industry AGV's(automated guided vehicles) that can detect and follow guidelines drawn on the factory floor using magnetic or optical sensors are widely used. However, such AGV's without preview capability cannot effectively avoid collision with obstacles that may occasionally pass through the guideline. Furthermore, without preview information, they consume much energy at the right angle corners as they have to make sudden directional change. Also, the risk of dropping payloads increases in such situations. In this study, infrared preview sensors were adopted to a mobile robot for detecting not only the current position but also the forward position of the guideline and the preview control technique was applied to optimally control the mobile robot's motion using the information from the infrared preview sensors. Then the effectiveness of this approach was investigated through a series of experiments. The experimental result shows that the proposed approach is effective for safety enhancement as well as for better efficiency.

• Korean Institute of Interior Design Journal
• /
• v.14 no.1
• /
• pp.151-159
• /
• 2005

The atmosphere of a caf is one of the most important elements for cafe interior design since it is linked directly with profit. As human sensibility ergonomics which is recently signified In various fields is an attempt to quantitatively analyze factors of human sensibility and apply it to design operation, it can be apt for analyzing caf atmosphere. Employing human sensibility ergonomics this study examined issues to be considered for preferred caf interior design. The outcome of this study indicated that the most significant caf design factors are "'style', 'artificiality' and 'enjoyment'. It also suggested a design guideline by evaluating features of each factor. Constructing a successful interior design can be achieved by applying this design guideline.

• The Journal of the Korean life insurance medical association
• /
• v.27 no.1
• /
• pp.24-32
• /
• 2008

The number of disabled person is increasing, and also the demand of welfare is increasing. In the developed country, the range of disabled person is broad, because the definition of disability is different among countries. On 10/Apr, 2007, the law to forbid discrimination against disabled person was announced and then it will be operated on 11/Apr, 2008, in Korea. It will need to evaluate conflict between this law and underwriting guideline. There is obvious difference between disabled and non-disabled on risk selection of medical and environmental aspect. More than 50% of disabilities are related to the diseases rather than accident. The role of underwriter is to evaluate the future risk of morbidity (admission and/or operation etc). The insurance company is required to make new product for disabled person and the underwriter has to examine the application of disabled without discrimination, and with respect for the disabled as a human right.

• Proceedings of the KSR Conference
• /
• 2010.06a
• /
• pp.2052-2057
• /
• 2010

In December 2006, the Ministry of Environment in Korea established the "Indoor Air Quality Management Guidelines in Public Transportation." As the items of the guideline, $CO_2$(Carbon dioxide) and PM10(Particulate matter). Therefore, the air quality inside the train is supposed to be ruled by this guideline. This study calculated the increase or decrease rate of the $CO_2$ concentration by using the data measured in accordance with flap operation. In case of flap close or open, the calculated $CO_2$ concentration variation was 6.32ppm/min. The $CO_2$ concentration prediction equation was derived from the general equation and the actual measured value are compared with the predicted $CO_2$ concentration suggested during the KyungBu high speed railway construction. The predicted value show good agreement with the measured data.

• Proceedings of the KIPE Conference
• /
• 2010.07a
• /
• pp.232-233
• /
• 2010

This paper investigates occupational exposure to time-varying magnetic field generation in high power rectifier systems. Two different kinds of high power rectifier systems of 25kA are modeled and analyzed. The performance is compared and evaluated on the basis of exposure guidelines from ICNIRP. In order to focus on the qualitative effect of rectifier operation, the mechanical structure of current carrying conductors is simplified as infinite long bus-bar model and low frequency harmonic contents up to 65kHz are considered. Thyristor rectifier generates a significant amount of low frequency magnetic field harmonic contents both at ac and dc side of rectifier infringing the limit from ICNIRP. The multilevel rectifier-IGCT type has almost negligible field generation from ac input side and smaller harmonic contents in dc load side complying with ICNIRP guideline. This remarkable advantage of multilevel rectifier-IGCT type can lead to very simple site layout design for installation and cost-effective compliance to guideline of occupational exposure against magnetic field.

• Journal of the Korea Safety Management & Science
• /
• v.16 no.2
• /
• pp.157-165
• /
• 2014

The interest about sustainable development of airport operation field has been increased as the aviation industry has been gradually developed and the influence to the neighboring area of airport has been increased. International organization and airport operator have issued a guidance manual with regard to the sustainability specialized in airport by adopting environment friendly rating system and developing a variety of sustainable practices. In this study, the guideline of sustainability manual appropriate to the local airports will be suggested by reviewing a variety of reference documents issued from foreign airport operators.

• The Transactions of the Korean Institute of Power Electronics
• /
• v.27 no.2
• /
• pp.106-117
• /
• 2022

Multiple output converters can be utilized when various output voltages are required in applications. Recently, one of the multiple output converters called fly-buck has been proposed, and has attracted attention due to the advantage that multiple output can be easily obtained with a simple structure. When constant on-time (COT) control is applied, the output ripple voltage must be treated carefully for control stability and voltage regulation characteristics in consideration of the inherent energy transfer characteristics of the fly-buck converter. This study analyzes the operation principle of the fly-buck converter with a ripple generation network and presents the design guideline for the improved output voltage regulation. Validity of the analysis and design guideline is verified using a 5 W prototype of the COT controlled fly-buck converter with a ripple generation network for telecommunication auxiliary power supply.

• Journal of Korean Society of Industrial and Systems Engineering
• /
• v.20 no.41
• /
• pp.197-201
• /
• 1997

Presses are very used in industrial and commercial companies and are often the source of serious accidents occurring during operation. Most of accidents are due to inadequate design of the press machine. This paper presented an experiment which examined eye movement characteristics of the operators in the press operation. Continuous recordings of eye movements were made on five subjects in press operation. It was observed that the subjects stared longer at the die and did not stare at the switch. The eyemovemen patterns per cycle of the subjects were mostly identified as material container $\rightarrow$ die pattern type. The results could be used as basic data to establish a design guideline when manufacturer made the press machine.