Search Results - "Park, Jong Kweon"

Thermally affected stiffness matrix of angular contact ball bearings in a high-speed spindle system by Sy Truong, Dinh, Kim, Byung-Sub, Park, Jong-Kweon

“…Bearing stiffness directly affects the dynamic characteristics in a high-speed spindle system and plays an important role in terms of manufacturing quality. We…”
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Friction and Wear Characteristics of Surface-Modified Titanium Alloy for Metal-on-Metal Hip Joint Bearing by Lee, Hyeon-hwa, Lee, Sungcheul, Park, Jong-Kweon, Yang, Minyang

“…Cobalt-chromium-molybdenum bearing materials have excellent wear resistance, but due to the cytotoxicity issue of chromium ions, they need to be replaced with…”
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A study on the effect of ultrasonic vibration in nanosecond laser machining by Kang, Bongchul, Woo Kim, Gun, Yang, Minyang, Cho, Sung-Hak, Park, Jong- Kweon

“…Laser machining has been used in various industrial manufacturing fields. However the surface finish of a machined surface becomes degraded by the recast layer…”
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Performance evaluation of a shape memory alloy tool holder for high-speed machining by Lee, Sungcheul, Ro, Seung-Kook, Park, Jong-Kweon

“…With recent increases in demand for small products such as mobile devices and artificial teeth, there is a growing need for small precision machine tools. The…”
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The development of a micro-pattern manufacturing method using rotating active tools with compensation of estimated errors and an LMS algorithm by Cho, Soo-Bong, Ro, Seung-Kook, Kim, Byung-Sub, Lee, Sung-Cheul, Park, Jong-Kweon

“…In this paper, techniques for machining and micro-structuring dimples and grooves on the interior of cylinders using an active rotating tool are discussed…”
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Design and implementation of a fault-tolerant magnetic bearing system for turbo-molecular vacuum pump by Noh, M.D., Seong-Rak Cho, Jin-Ho Kyung, Seung-Kook Ro, Jong-Kweon Park

“…One of the obstacles for a magnetic bearing for use in a wide range of industrial applications is the failure modes associated with magnetic bearings, which…”
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Combustion characteristics of high-energy Al/CuO composite powders: The role of oxidizer structure and pellet density by Ahn, Ji Young, Kim, Ji Hoon, Kim, Jong Man, Lee, Deug Woo, Park, Jong Kweon, Lee, Donggeun, Kim, Soo Hyung

“…The size and morphology of the fuel and oxidizer and the pellet density are important factors influencing the burn characteristics of energetic-material (EM)…”
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Study of ball screw system preload monitoring during operation based on the motor current and screw-nut vibration by Nguyen, Tung Lam, Ro, Seung-Kook, Park, Jong-Kweon

“…•A discrete dynamic modeling of a ball screw drive system for investigating the relationship between preload level and axial natural frequency of the ball…”
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Design of a meander dipole antenna with dielectric loading for a sensor node of a wireless sensor network by Lee, Jung-Nam, Park, Ju-Derk, Lee, Kwang-Chun, Park, Jong-Kweon

“…ABSTRACT A meander dipole antenna for a sensor node of a wireless sensor network is proposed. The proposed antenna consists of a dipole element, the matching…”
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Dual-scale artificial lotus leaf fabricated by fully nonlithographic simple approach based on sandblasting and anodic aluminum oxidation techniques by Kim, Seung-Jun, Kim, Tae-Hyun, Kong, Jeong-Ho, Kim, Yongsung, Cho, Chae-Ryong, Kim, Soo-Hyung, Lee, Deug-Woo, Park, Jong-Kweon, Lee, Dongyun, Kim, Jong-Man

“…► Fully nonlithographic simple method to realize artificial lotus leaf was proposed. ► The proposed cost-effective way enables to fabricate dual-scale…”
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Three-Channel Output Multiplexer Design Using Band-Pass Filter and Ultra-Wideband Antenna by Lee, Jung Nam, Park, Jong Kweon

“…We have designed a three-channel output multiplexer (OMUX) using a band-pass filter and an ultra-wideband (UWB) antenna. The proposed band-pass filter is…”
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Erratum to "Three-Channel Output Multiplexer Design Using Band-Pass Filter and Ultra-Wideband Antenna" by Lee, Jung Nam, Kahng, Sungtek, Jang, Geonho, Park, Jong Kweon

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A Dual-Band Gap-Filler Antenna Design with a Phi-Shaped Slot by Park, Sang Yong, Park, Jong Kweon

“…In this paper, we have proposed dual-band Phi-shaped slot gap filler antenna for satellite internet service applications. Some properties of the antenna such…”
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A static model for micro-pattern forming prediction in rolling-based surface texturing by Bui, Quang Thanh, Ro, Seung Kook, Park, Jong Kweon

“…This paper describes a new model for predicting micro-pattern deformation in rolling-based surface texturing. With the assumption that the micro-rolling…”
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A compact high-precision optical sensor for three-dimensional tool-origin compensation by Lee, Hyeon-Hwa, Yang, Min-Yang, Shin, Woo-Cheol, Ro, Seung-Kook, Park, Jong-Kweon

“…Tool-origin compensation is important in high-precision micro-machining, as the tool-origin can become changed by the tool replacement. It is desirable to use…”
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Simple and Cost-Effective Fabrication of Highly Flexible, Transparent Superhydrophobic Films with Hierarchical Surface Design by Kim, Tae-Hyun, Ha, Sung-Hun, Jang, Nam-Su, Kim, Jeonghyo, Kim, Ji Hoon, Park, Jong-Kweon, Lee, Deug-Woo, Lee, Jaebeom, Kim, Soo-Hyung, Kim, Jong-Man

“…Optical transparency and mechanical flexibility are both of great importance for significantly expanding the applicability of superhydrophobic surfaces. Such…”
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A Simple Route to Morphology-Controlled Polydimethylsiloxane Films Based on Particle-Embedded Elastomeric Masters for Enhanced Superhydrophobicity by Jeong, Dong-Wook, Kim, Seung-Jun, Park, Jong-Kweon, Kim, Soo-Hyung, Lee, Deug-Woo, Kim, Jong-Man

“…We present a simple route for controlling the surface morphology of polydimethylsiloxane (PDMS) films based on a standard replica molding technique…”
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Three-Channel Output Multiplexer Design Using Band-Pass Filter and Ultra-Wideband Antenna by Jong Kweon Park, Jung Nam Lee

“…We have designed a three-channel output multiplexer (OMUX) using a band-pass filter and an ultra-wideband (UWB) antenna. The proposed band-pass filter is…”
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A compact ultra-precision air bearing stage with 3-DOF planar motions using electromagnetic motors by Ro, Seung-Kook, Park, Jong-Kweon

“…We designed a novel surface motor stage supported by air bearings and driven by linear electromagnetic motors. This compact and simple planar stage is proposed…”
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A Dual-Band Gap-Filler Antenna Design with a Phi-Shaped Slot by Sang Yong Park, Jong Kweon Park

“…In this paper, we have proposed dual-band Phi-shaped slot gap filler antenna for satellite internet service applications. Some properties of the antenna such…”
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