• Proceedings of the IEEK Conference
• /
• 2000.11a
• /
• pp.5-8
• /
• 2000

The voice over IP(VoIP) technology is currently recognized as the base technology for the next generation telecommunication services. So the VoIP market has been extremely expanding with the opportunity for cheap phone calls. This paper describes the packet voice testing issues and scenarios for the VoIP services. These issues and scenarios are deduced from the testing results through KT VoIP testbed composed of commercial systems.

• IEMEK Journal of Embedded Systems and Applications
• /
• v.7 no.2
• /
• pp.113-120
• /
• 2012

In this paper we describe the integrated development environment for embedded software education. Our environment uses a cheap and widely available portable game console, Nintendo DS-lite. We have integrated open source development tools, and have implemented download shell, remote debugger. The results are all open source, and were used for university class for real embedded software education.

• Proceedings of the Optical Society of Korea Conference
• /
• 2009.02a
• /
• pp.527-528
• /
• 2009

We developed the compact-sized ear inspector utilizing fiber-pigtailed cheap LED light source and CCD(charge coupled detector) camera. With adjusting the lens pair having different focal length respectively, optimized imaging conditions with fiber-coupled LED were obtained.

• Proceedings of the Korean Fiber Society Conference
• /
• 2002.04a
• /
• pp.93-96
• /
• 2002

Blending Is cheap and leads to new thermoplastics, many properties which can be predicted from those of the components. Due to the incompatibility of their components, most blends feature coarse phase morphologies with weak interfaces between the phases. Consequently the blends are brittle. Thermoplastic elastomers which have two kinds of segments in the chain have flexible(soft) and rigid(hard) segments and exhibit a unique combination of strength, flexibility, and processibility. (omitted)

• Proceedings of the KSAR Conference
• /
• 2004.06a
• /
• pp.278-278
• /
• 2004

The purpose of this study was to establish the convenient freezing method for more cheap and simple. Semen quality was evaluated the motility, viability, abnormality, acrosome intactness and membrane integrity. And there were also examined the developmental rates of IVM/IVF embryos using frozen-thawed boar semen in each treatment group. (omitted)

• Journal of the Korean housing association
• /
• v.8 no.2
• /
• pp.113-122
• /
• 1997

This study analyzes behavior characteristics of illegal urban stall keepers scattered in the metropolitan area and their effects to urban life. The main findings of this study are follows. First, the stall keepers are different in terms of 1) items 2) opening hour and 3) user characteristics depending on locational environment of market boundaries. Second, the stall keepers exit in any time and any place if demand exists. Third, the effects of stall keepers to urban life are twofold ; they facilitate urban life by providing cheap and various commodities/services and they bring about negative effects such as obstacle to traffic flows, waste generation, and so on.

• Resources Recycling
• /
• v.11 no.5
• /
• pp.11-15
• /
• 2002

China is a large country fer the production of magnetic materials because of its cheap price and abundant raw materials. The total yield of ferrite occupies about 20% fraction in the market of the world. In this report, the characteristics and the yield of the ferrite magnet produced in China were displayed. Also the distribution of manufacturers and research institutes and the Chinas 10th five-year-plan on the magnetic materials were reviewed.

• Journal of the Korean Society of Industry Convergence
• /
• v.5 no.3
• /
• pp.261-268
• /
• 2002

In this paper, the shape optimization is considered over the upper slab of reinforced concrete culvert. The sequential linear programming method (SLP) is used as a rational approach to this shape optimization. To make a comparison between the arch shaped member and the straight member for the upper slab, the culverts with 5~20m earth height were adopted. It is shown that the optimum rise/span is about 7%-13%, and the arch shaped member is more cheap (over 10%) than the straight member for the construction cost.

• Magazine of the Korean Society of Agricultural Engineers
• /
• v.10 no.1
• /
• pp.1409-1412
• /
• 1968

Some simple devices to demonstrate important hydraulic principles are required in fluid mechanics or hydraulics classes. Those devices should be easy to make and operate with inexpensive cost. The writer has studied some simple demonstration apparatus of hydraulic principles which were made of cheap materials. An adjustable nozzle is one of them. It can be connected to an axial flow fan so as to use air flow. By operating this apparatus, pressure changes in gradually enlarged or contracted conduits could be observed.

• Journal of the Korean Institute of Rural Architecture
• /
• v.14 no.3
• /
• pp.77-84
• /
• 2012

The Conventional market located in Yangyang, Gangwon is currently facing the crisis, so it needs a new strategy to break a slowdown. Nevertheless, the local residents are looking forward to activating Yangyang conventional markets. To this end, the associates shall utilize their advantages of Yangyang conventional markets to supply cheap and good quality to guests with differentiated strategies. The purpose of the study is to analyze Yangyang conventional markets with architectural aspect and to provide conventional markets in each region with alternatives for revitalization.