13 Result(s)
within
Sung Il Kim
Engineering
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Article
Open AccessTwo-step hybrid process of movable part inside glass substrate using ultrafast laser
We demonstrate a two-step hybrid process for fabricating movable parts inside glass substrate using the selective laser-induced etching (SLE) process that is consisted of laser-direct writing and wet chemical ...
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Article
Equivalent Circuit Analysis of Induction Motors Considering Magnetic Saturation for Automotive Applications
This paper deals with the characteristics analysis of 3-phase induction motors for electric power steering applications by combining finite element analysis with an equivalent circuit model. Induction motors f...
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Article
Magnetization Analysis for Outer Rotor Brushless DC Motors Using Polar Anisotropic Ferrite Ring Magnets
Ferrite-bonded magnets have been extensively used in small brushless DC (BLDC) motors for low torque applications such as fans and pumps. In particular, some motors of them with ferrite-bonded magnets, frequen...
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Article
Simulated experiments with TiO2 particles using a lab-designed single-stage impactor to evaluate impaction characteristics of particles leaked by steam generator tube rupture
If a steam generator tube rupture (SGTR) occurs during a severe accident in a nuclear power plant, radionuclides can be released to the atmosphere as an aerosol. The release of radioactive compounds can be pre...
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Article
Semantic Hashtag Relation Classification Using Co-occurrence Word Information
Users using social networking service (SNS) may express their thoughts and feelings using simple hashtags. Hashtags are related to other hashtags and images that are used together in the user’s other posts. Un...
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Article
Analysis of the electroviscous effects on pressure-driven flow in nanochannels using effective ionic concentrations
The selection of proper boundary conditions is one of the most critical issues when predicting electroviscous effects. Despite numerous studies of the electroviscous effects in micro- and nanochannels with ove...
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Article
Experimental study on heat transfer performance of a two-phase single thermosyphon using HFE-7100
In this study, the heat transfer performance of a two-phase single thermosyphon was experimentally measured and compared with respect to the aspect ratio and filling ratio. For the control experiments, we prep...
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Article
Estimation of the vibration serviceability deflection limit of a high-speed railway bridge considering the bridge-train interaction and travel speed
The static and dynamic displacements of high-speed railway bridges, which are determined by the load conditions, travel speed, and span, may cause passenger discomfort when they are excessive. In the Korea Rai...
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Article
Power Allocation and Transmission Period Selection for Device-to-Device Communication as an Underlay to Cellular Networks
Efficient design of device-to-device (D2D) communication calls for D2D users to propose adaptive power allocation strategy and to establish reliable communication links while protecting the QoS of cellular com...
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Article
Open AccessRandom access transport capacity of multihop AF relaying: a throughput-reliability tradeoff
To determine the capacity of distributed wireless networks (i.e., ad hoc networks), the random access transport capacity was proposed as the average maximum rate of successful end-to-end transmission in the di...
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Article
Opportunistic Decode-and-Forward Relaying with Interferences at Relays
In this paper, a decode-and-forward cooperative interference-limited multiple relay network is considered. An efficient relay selection strategy and its performance analysis are proposed, where only the relay ...
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Article
Dynamic behavior comparison of steel-composite and concrete high speed railway bridges
The dynamic behavior of two steel bridges crossed by the Korean High Speed Train (KTX) has been investigated experimentally and the results are compared with the specification requirement and other typical pre...
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Article
Flexural strength of a hybrid member for culverts consisting of mortar-filled steel tubes laterally connected by headed reinforcements
In this study, the temporary structural system for a trenchless method was developed. The developed structural system is a type of hybrid member consisting of mortar-filled steel tubes laterally connected by h...
