Search Results - "Hwang, Jooho"

Multi-objective Optimization of Machine Tool Spindle-Bearing System by Tong, Van-Canh, Hwang, Jooho, Shim, Jongyoup, Oh, Jeong-Seok, Hong, Seong-Wook

“…In this study, a multi-objective optimization is performed for the design of a spindle-bearing system based on particle swarm optimization (PSO). Multiple…”
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Investigation of Temperature Rise in an Induction Motor Considering the Effect of Loading by Seong, Ki-Hyun, Hwang, Jooho, Shim, Jongyoub, Cho, Han-Wook

“…This paper presents an investigation into the temperature rise in induction motors used to power machine tool spindles by considering the effects of loading…”
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Decision support for selecting exportable nuclear technology using the analytic hierarchy process: A Korean case by Lee, Deok Joo, Hwang, Jooho

“…The Korean government plans to increase strategically focused R&D investment in some promising nuclear technology areas to create export opportunities of…”
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A three-probe system for measuring the parallelism and straightness of a pair of rails for ultra-precision guideways by Hwang, Jooho, Park, Chun-Hong, Gao, Wei, Kim, Seung-Woo

“…This paper describes a three-probe system that can be used to measure the parallelism and straightness of a pair of rails simultaneously. The parallelism is…”
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Precision measurement of carriage slide motion error of a drum roll lathe by Lee, Jung Chul, Gao, Wei, Shimizu, Yuki, Hwang, Jooho, Oh, Jeong Seok, Park, Chun Hong

“…► This paper presents the measurement of slide motion error consisting of the out-of-straightness error and the axis misalignment error. ► Error separation…”
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A 1.8V 200mW 8-bit 1GSPS CMOS A/D converter with a cascaded-folding and an interpolation by Jooho Hwang, Dongheon Lee, Sunghyun Park, Junho Moon, Minkyu Song

“…In this paper, a CMOS analog-to-digital converter (ADC) with an 8-bit 1GSPS at 1.8 V is designed. The architecture of the proposed ADC is based on a folding…”
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Effects of a drawbar design and force on multipurpose aerostatic spindle dynamics by Cong, Dang Chi, Hwang, Jooho, Shim, Jongyoup, Ro, Seung-Kook, Schmitz, Tony

“…The tool point frequency response function (FRF), or receptance, is an important dynamic condition for machining processes, especially milling and finishing,…”
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Uncertainty evaluation for twist drilling stability model by Schmitz, Tony, Gomez, Michael, Honeycutt, Andrew, Karandikar, Jaydeep, Shim, Jongyoup, Ro, Seung-Kook, Hwang, Jooho

“…This paper describes the first uncertainty analysis for drilling stability using a frequency-domain drilling stability model. The stability model inputs…”
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Estimation method for errors of an aerostatic planar XY stage based on measured profiles errors by Hwang, Jooho, Park, Chun-Hong, Kim, Seung-Woo

“…This paper describes a method for estimating the geometric errors of an aerostatic planar XY stage. The method calculates two-dimensional (2D) position errors…”
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Three-face step-diagonal measurement method for the estimation of volumetric positioning errors in a 3D workspace by Bui, Chinh B., Hwang, Jooho, Lee, Chan-Hong, Park, Chun-Hong

“…In this paper, it is demonstrated that volumetric positioning errors can be calculated by measuring the displacements of three face step-diagonals and three…”
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Design of a 1.8V 8-bit 1GSPS cascaded-folding CMOS A/D converter based on a folder averaging technique by Dongheon Lee, Seunghun Kim, Jooho Hwang, Junho Moon, Minkyu Song

“…In this paper, a CMOS analog-to-digital converter (ADC) with an 8-bit 1GSPS at 1.8V is designed. The architecture of the proposed ADC is based on a folding ADC…”
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12-bit 80MSPS double folding/interpolation A/D converter by Byungil Kim, Daeyun Kim, Jooho Hwang, Junho Moon, Minkyu Song

“…In this paper, a CMOS analog-to-digital converter (ADC) with a 12-bit 80 MSPS at 1.8 V is designed. The architecture of the proposed ADC is based on a folding…”
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Development of an ultra precision machine tool for micromachining on large surfaces by Park, Chun Hong, Song, Chang Kyu, Hwang, Jooho, Kim, Byung-Sub

“…The goal of this research is to develop a multi-functional ultra precision machine to generate micro features on large surfaces. Design and characteristic…”
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Spindle error motion measurement of a large precision roll lathe by Lee, JungChul, Gao, Wei, Shimizu, Yuki, Hwang, Jooho, Oh, Jeong Seok, Park, Chun Hong

“…This paper describes a spindle error motion measurement system to evaluate the performance of the spindle of a large precision roll lathe, which is under…”
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Compensation of temperature induced position measuring error in the ultra-precision moving robot system by Jooho Hwang, Chang-Kyu Song, Bang-Won Kim, Chul-Ho Choi

“…In this paper, for measuring the position error of the ultra precision stage more accurately, the refractive index compensation method is introduced. The wave…”
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Estimation and correction method for the two-dimensional positionerrors of a planar XY stage based on motion error measurements by Hwang, Jooho, Park, Chun-Hong, Lee, Chan-Hong, Kim, Seung-Woo

“…This paper describes an estimation and correction method for the two-dimensional (2D) position errors of a planar XY stage that is driven along the Y-axis by…”
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Estimation and correction method for the two-dimensional position errors of a planar XY stage based on motion error measurements by HWANG, Jooho, PARKA, Chun-Hong, LEE, Chan-Hong, KIM, Seung-Woo

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An 8-bit 1GSPS folding-interpolation CMOS A/D converter with an auto switching encoder by Sunghyun Park, Jooho Hwang, Dongheon Lee, Junho Moon, Minkyu Song

“…In this paper, a CMOS analog-to-digital converter (ADC) with an 8-bit 1GSPS at 1.8 V is designed. The architecture of the proposed ADC is based on a folding…”
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