| 163 |
J.H.Nam,
S.H.Han,
and G.H.Jang |
A resonant piezoelectric S-Morph actuator with a large vibration force operating at a haptic frequency in a hexahedral smart watch with a small form factor |
IEEE/ASME TRANSACTIONS ON MECHATRONICS |
VOL. 23, NO. 6, pp. 2881-2887 |
2018.12 |
| 162 |
C.H.Kang
K.M.Jung
M.H.Lee
and G.H.Jang |
Finite-element coupled analyses of the Reynolds and Hagen–Poiseuille equations to calculate pressure and flow of fluid dynamic bearings with a recirculation channel |
Tribology international |
Vol. 128, pp.52-64 |
2018.12 |
| 161 |
B.C.Kim
and G.H.Jang |
Effects of the friction coefficient of a barrel on the grinding performance of a planetary ball mill |
Microsystem Technologies |
VOL. 24, NO. 11, pp 4465-4470 |
2018.11 |
| 160 |
Y.J.Cho
J.W.Jang
and G.H.Jang |
Sensitivity analysis on the fatigue life of solid state drive solder joints by the finite element method and Monte Carlo simulation |
Microsystem Technologies |
VOL. 24, NO. 11, pp 4669-4676 |
2018.11 |
| 159 |
M.H.Lee
J.H.Lee
K.B.Kim
and G.H.Jang |
Height analysis of the air-oil interfaces in the non-operating and operating FDBs in a tied shaft of HDDs |
Microsystem Technologies |
VOL. 24, NO. 11, pp 4613-4620 |
2018.11 |
| 158 |
J.K.Nam
W.S.Lee
E.S.Jung
and G.H.Jang |
Magnetic Navigation System Utilizing a Closed Magnetic Circuit to Maximize Magnetic Field and a Mapping Method to Precisely Control Magnetic Field in Real Time |
IEEE Transactions on industrial electronics |
Vol.65, No.7 pp 5673-5680 |
2018.07 |
| 157 |
N.H.Kim
S.Y.Lee
W.S.Lee
and G.H.Jang |
Development of a magnetic catheter with rotating multi-magnets to achieve unclogging motions with enhanced steering capability |
AIP Advances |
Vol.8 No.5
pp.056758 |
2018.05 |
| 156 |
W.S.Lee
J.K.Nam
J.Y.Kim
E.S.Jung
and G.H.Jang |
Effective Locomotion and Precise Unclogging Motion of an Untethered Flexible-Legged Magnetic Robot for Vascular Diseases |
IEEE Transactions on industrial electronics |
Vol.65 No.2 pp 1388-1397 |
2018.02 |
| 155 |
J. K. Nam
W. S. Lee
J. Y. Kim
G. H. Jang |
Magnetic Helical Robot for Targeted Drug-Delivery in Tubular Environments |
IEEE/ASME Transactions on Mechatronics |
Vol.22 No.6 pp 2461-2468 |
2017.12 |
| 154 |
Y.J.Cho
and G.H.Jang |
Automatic Ball Balancer Using Permanent Magnets to Reduce Transient Vibration |
IEEE Transactions on Magnetics |
Vol.53 No.11 pp.1-4 |
2017.11 |
| 153 |
C.H.Kang
K.J.Kang
J.Y.Song
Y.J.Cho
and G.H.Jang |
Axial Unbalanced Magnetic Force in a Permanent Magnet Motor Due to a Skewed Magnet and Rotor Eccentricities |
IEEE Transactions on Magnetics |
Vol.53 No.11 pp.1-5 |
2017.11 |
| 152 |
K. B. Kim
M. H. Lee
S. M. Lee
G. H. Jang |
Optimal design and experimental verification of fluid dynamic bearings with high load capacity applied to an integrated motor propulsor in unmanned underwater vehicles |
Tribology International |
Vol. 114 pp. 221-233 |
2017.10 |
| 151 |
K.J.Kang
J.Y.Song
C.H.Kang
S.J.Sung
and G.H.Jang |
Real-Time Detection of the Dynamic Eccentricity in Permanent-Magnet Synchronous Motors by Monitoring Speed and Back EMF Induced in an Additional Winding |
IEEE Transactions on Industrial Electronics |
Vol.64 No.9 pp.7191- 7200 |
2017.09 |
| 150 |
B. J. Jang
J. K. Nam
W. S. Lee
G. H. Jang |
A Crawling Magnetic Robot Actuated and Steered via Oscillatory Rotating External Magnetic Fields in Tubular Environments |
IEEE/ASME Transactions on Mechatronics |
Vol.22 No.3 pp.1465-1472 |
2017.06 |
| 149 |
S. M. Jeon
J. K. Nam
W. S. Lee
G. H. Jang |
Selective Navigating and Unclogging Motions of an Intravascular Helical Magnetic Millirobot Actuated by External Biaxial Rotating Magnetic Fields |
IEEE/ASME Transactions on Mechatronics |
Vol.22 No.3 pp.1456-1464 |
2017.06 |
| 148 |
J. K. Nam
W. S. Lee
B. J. Jang
G. H. Jang |
Magnetic Navigation System Utilizing Resonant Effect to Enhance Magnetic Field Applied to Magnetic Robots |
IEEE Transactions on Industrial Electronics |
Vol.64 No.6 pp.4701-4709 |
2017.06 |
| 147 |
J. Y. Song
K. J. Kang
C. H. Kang
G. H. Jang |
Cogging Torque and Unbalanced Magnetic Pull Due to Simultaneous Existence of Dynamic and Static Eccentricities and Uneven Magnetization in Permanent Magnet Motors |
IEEE Transactions on Magnetics |
Vol.53 No.3 pp.1-9 |
2017.03 |
| 146 |
W. S. Lee
J. K. Nam
B. J. Jang
G. H. Jang |
Selective Motion Control of a Crawling Magnetic Robot System for Wireless Self-Expandable Stent Delivery in Narrowed Tubular Environments |
IEEE Transactions on industrial electronics |
Vol.64 No.2 pp.1636-1644 |
2017.02 |
| 145 |
J. Y. Kim
J. K. Nam
W. S. Lee
B. J. Jang
G. H. Jang |
Precise position control of a helical magnetic robot in pulsatile flow using the rotating frequency of the external magnetic field |
AIP Advances |
Vol.7 No.5 pp.056712 |
2017.01 |
| 144 |
J. H. Nam
C. H. Kang
J. Y. Song
G. H. Jang |
Comparison of one-way and two-way coupled analyses of electromagnetic machines considering magnetic and structural interactions |
AIP Advances |
Vol.7 No.5 pp.056637 |
2017.01 |
| 143 |
J. H. Nam
H. Y. Oh
G. H. Jang |
Externally Leveraged Resonant Piezoelectric Actuator With Fast Response Time for Smart Devices |
IEEE/ASME Transactions on Mechatronics |
Vol.21 No.6 pp.2764-2772 |
2016.12 |
| 142 |
J. W. Jang
G. H. Jang
J. Y. Lee
Y. J. Cho
Yusuf Cinar |
Fatigue life estimations of solid-state drives with dummy solder balls under vibration |
International Journal of Fatigue |
Vol.88 pp.42-48 |
2016.07 |
| 141 |
C. H. Kang
Y. H. Jung
J. H. Lee
M. H. Lee
B. C. Kim
G. H. Jang |
Dynamic behavior of air–oil interface in fluid dynamic bearings with a double sealing structure in a 2.500 hard disk drive due to non-operating axial shock |
Tribology International |
Vol.98 pp.306-316 |
2016.06 |
| 140 |
M. H. Lee
J. H. Lee
C. H. Kang
K. B. Kim
H. K. Jang
B. C. Kim
G. H. Jang |
Prediction of the oil injection time of FDBs in an HDD spindle motor with a tied shaft by utilizing Kirchhoff’s pressure law |
Microsystem Technologies |
Vol.22 No.6 pp.1241~1247 |
2016.06 |
| 139 |
B. C. Kim
M. H. Lee
G. H. Jang |
Robust shaft design to compensate deformation in the hub press‑fitting and disk clamping process of 2.5″ HDDs |
Microsystem Technologies |
Vol.22 No.6 pp.1299-1305 |
2016.06 |
| 138 |
B. S. Seo
S. J. Sung
K. J. Kang
J. Y. Song
G. H. Jang |
Unbalanced magnetic force and cogging torque of PM motors due to the interaction between PM magnetization and stator eccentricity |
Microsystem Technologies |
Vol.22 No.6 pp.1249-1255 |
2016.06 |
| 137 |
J. H. Nam
Y. J. Kim
G. H. Jang |
Resonant Piezoelectric Vibrator With High Displacement at Haptic Frequency for Smart Devices |
IEEE/ASME Transactions on Mechatronics |
Vol.21 No.1 pp.394-401 |
2016.02 |
| 136 |
S. J. Sung
K. J. Kang
J. Y. Song
G. H. Jang |
Effect of additional harmonics of driving current on torque ripple and unbalanced magnetic force in HDD spindle motors with stator and rotor eccentricity |
Microsystem Technologies |
Vol.21 No.12 pp.2669-2678 |
2015.12 |
| 135 |
J. H. Lee
M. H. Lee
K. B. Kim
C. H. Kang
H. K. Jang
G. H. Jang |
Monte Carlo simulation of the manufacturing tolerance in FDBs to identify the sensitive design variables affecting the performance of a disk‑spindle system |
Microsystem Technologies |
Vol.21 No.12 pp.2649-2656 |
2015.12 |
| 134 |
B. C. Kim
G. H. Jang |
Robust hub design to prevent mechanical contact between the hub and sleeve of FDBs in an HDD due to disc clamping force |
Microsystem Technologies |
Vol.21 No.12 pp.2797-2802 |
2015.12 |
| 133 |
M. H. Lee
J. H. Lee
G. H. Jang |
Stability analysis of a whirling rigid rotor supported by stationary grooved FDBs considering the five degrees of freedom of a general rotor‑bearing system |
Microsystem Technologies |
Vol.21 No.12 pp.2685-2696 |
2015.12 |
| 132 |
Y. H. Jung
G. H. Jang
C. H. Kang
H. H. Shin
J. Y. Jeong |
Effect of the cross‑sectional shape of the recirculation channel on expulsion of air bubbles from FDBs used in HDD spindle motors |
Microsystem Technologies |
Vol.21 No.12 pp.2747-2759 |
2015.12 |
| 131 |
G. B. Jang
S. M. Jeon
J. K. Nam
W. S. Lee
G. H. Jang |
A Spiral Microrobot Performing Navigating Linear and Drilling Motions by Magnetic Gradient and Rotating Uniform Magnetic Field for Applications in Unclogging Blocked Human Blood Vessels |
IEEE Transactions on Magnetics |
Vol.51 No.11 |
2015.11 |
| 130 |
S. M. Jeon
G. H. Jang
J. K. Nam
S. J. Kim |
Manipulation of permanent magnet beads with head-to-tail ring formation on thin 3D surfaces |
Sensors and Actuators A : Physical |
Vol.233 No.1 pp.532~541 |
2015.11 |
| 129 |
W. S. Lee
S. M. Jeon
J. K. Nam
G. H. Jang |
Dual-body magnetic helical robot for drilling and cargo delivery in human blood vessels |
Journal of Applied Physics |
Vol.117 pp.7B314 |
2015.04 |
| 128 |
J. K. Nam
S. M. Jeon
W. S. Lee
G. H. Jang |
Control of a three-dimensional magnetic force generated from a magnetic navigation system to precisely manipulate the locomotion of a magnetic microrobot |
Journal of Applied Physics |
Vol.117 pp.17A726 |
2015.03 |
| 127 |
K. Choi
S. M. Jeon
J. K. Nam
G. H. Jang |
A magnetic minirobot with anchoring and drilling ability in tubular environments actuated by external magnetic fields |
Journal of Applied Physics |
Vol.117 pp.17A730 |
2015.03 |
| 126 |
S. J. Kim
G. H. Jang
S. M. Jeon
J. K. Nam |
A crawling and drilling microrobot driven by an external oscillating or precessional magnetic field in tubular environments |
Journal of Applied physics |
Vol.117 pp.17A703 |
2015.01 |
| 125 |
S. M. Jeon
J. H. Jang
W. S. Lee |
Drug-Enhanced Unclogging Motions of a Double Helical Magnetic Micromachine for Occlusive Vascular Diseases |
IEEE Transactions on Magnetics |
Vol.50 No.11 pp.9100304 |
2014.12 |
| 124 |
K. Choi
G. H. Jang
S. M. Jeon
J. K. Nam |
Capsule-Type Magnetic Microrobot Actuated by an External Magnetic Field for Selective Drug Delivery in Human Blood Vessels |
IEEE Transactions on Magnetics |
Vol.50 No.11 pp.8500604 |
2014.12 |
| 123 |
S. J. Kim
S. M. Jeon
J. K. Nam
G. H. Jang |
Closed-Loop Control of a Self-Positioning and Rolling Magnetic Microrobot on 3D Thin Surfaces Using Biplane Imaging |
IEEE Transactions on Magnetics |
Vol.50 No.11 pp 8601004 |
2014.12 |
| 122 |
J. K. Nam
G. H. Jang
S. M. Jeon
K. Choi |
Development of a Crawling Microrobot With High Steering Capability and High Stability to Navigate Through a Sharply Bent Tubular Environment |
IEEE Transactions on Magnetics |
Vol.50 No.11 pp 8500704 |
2014.12 |
| 121 |
S. J. Sung
K. J. Kang
G. H. Jang |
Noise and vibration due to rotor eccentricity in a HDD spindle system |
Microsystem Technologies |
Vol.20 pp 1461-1469 |
2014.08 |
| 120 |
S. M. Jeon
J. K. Nam
G. H. Jang |
Magnetic equilibrium postures of a multibody magnetic microrobot composed of a spherical magnet chain |
Microsystem Technologies |
Vol.20 pp 1471-1478 |
2014.08 |
| 119 |
J. H. Nam
T. H. Yeon
G. H. Jang |
Development of a linear vibration motor with fast response time for mobile phones |
Microsystem Technologies |
Vol.20 pp 1505-1510 |
2014.08 |
| 118 |
C. J. Lee
G. H. Jang |
Robust optimal design of a magnetizer to reduce the harmonic components of cogging torque in a HDD spindle motor |
Microsystem Technologies |
Vol.20 pp 1497-1504 |
2014.08 |
| 117 |
J. H. Lee
M. H. Lee
G. H. Jang |
Effect of an hourglass‑shaped sleeve on the performance of the fluid dynamic bearings of a HDD spindle motor |
Microsystem Technologies |
Vol.20 pp 1435-1445 |
2014.08 |
| 116 |
Y. H. Jung
K. M. Jung
C. H. Kang
G. H. Jang |
Behavior of a micro‑sized air bubble in operating FDBs using the discrete phase modeling method |
Microsystem Technologies |
Vol.20 pp 1511-1521 |
2014.08 |
| 115 |
J. K. Nam
S. M. Jeon
S. J. Kim
G. H. Jang |
Crawling microrobot actuated by a magnetic navigation system in tubular environments |
Sensors and Actuators A : Physical |
Vol.29 pp 100-106 |
2014.03 |
| 114 |
D. Y. Kim
J. Y. Song
G. H. Jang |
Magnetic and Structural Finite Element Analysis of Rotor Vibrations Due to Magnetic Forces in IPM Motor |
IEEE Transactions on Magnetics |
Vol.50 No.2 pp 7018604 |
2014.02 |
| 113 |
S. M. Jeon
J. K. Nam
K. Choi
G. H. Jang |
A Self-Positioning and Rolling Magnetic Microrobot on Arbitrary Thin Surfaces |
Journal of Applied physics |
Vol.115 No. 17 pp 17E303-17E303-3 |
2014.01 |
| 112 |
Yusuf cinar
G. H. Jang |
Fatigue life estimation of FBGA memory device under vibration |
Journal of Mechanical Science and Technology |
Vol.28, No.1 pp 107-114 |
2014.01 |