36 Result(s)
within
Article
J Kim
Engineering
-
Article
Simultaneous and Contactless Characterization of the Young’s and Shear Moduli of Gelatin-Based Hydrogels
Biocompatible hydrogels have a wide range of applications including tissue engineering and biofabrication. Since the cell and tissue behavior is greatly influenced by the mechanical properties of their environ...
-
Article
Calibration of hoop stress in ring tensile test with Zircaloy-4 tube
Since Zirconium (Zr) alloys have been widely used as cladding material in a nuclear fuel rod, material properties of Zr are essential in prediction of failure and undesirable deformation. This paper mainly con...
-
Article
Imaging water ingress into concrete using electrical resistance tomography
This paper investigates the feasibility of imaging the movement of water into partially saturated concrete using electrical resistance tomography (ERT). With this technique, the spatial distribution of electri...
-
Article
Design of a compact 18-speed epicyclic transmission for a personal mobility vehicle
This paper describes the design and shifting dynamics of a novel and small-sized transmission which composed of three epicyclic gear modules and a hub shaft in conjunction with several clutches. The proposed e...
-
Article
Implementation of discharging/charging current sensorless state-of-charge estimator reflecting cell-to-cell variations in lithium-ion series battery packs
This paper offers novel insights to the design and implementation of an innovative state-of-charge (SOC) estimator for the lithium-ion (Li-Ion) series battery pack. The most interesting feature of this approac...
-
Article
Optimal power distribution of front and rear motors for minimizing energy consumption of 4-wheel-drive electric vehicles
In this paper, the optimal power distribution of the front and rear motors for minimizing energy consumption of a 4WD EV is investigated. An optimal power distribution control is developed based on the mathema...
-
Article
Operational efficiency comparison on eco-friendly vehicles including dynamic wireless charging
Eco-friendly vehicle technologies for commercial bus applications, such as a plug-in series-hybrid electric vehicle (SHEV), a pure battery electric vehicle (BEV), and an electric vehicle (EV) with dynamic wire...
-
Article
Real-time path planning of autonomous vehicles for unstructured road navigation
This paper presents a path planning algorithm for autonomous vehicles to generate feasible and smooth maneuvers in unstructured environments. Our approach uses a graph-based search algorithm and a discrete kin...
-
Article
The effects of fractality on hydrogen permeability across meso-porous membrane
A fractal theory employing a box-counting method was used to describe hydrogen gas diffusion into membrane pores in the meso-porosity regime. The diffusion of the gas into the membrane pore network confirmed t...
-
Article
Prediction and minimization of micro deformation on the automobile hood after dip** process
During automobile dip** process, surface defects such as very small or micro deformation occurs intermittently on the assembled hood. The main cause of the surface defect is the location of hood supporting s...
-
Article
Motor control algorithm for an optimal engine operation of power split hybrid electric vehicle
In the power split hybrid electric vehicle(HEV), since the two motors are used to assist the engine or to charge the battery, it is essential how to control the two motors while minimizing the fuel consumption...
-
Article
Model predictive control strategy for smooth path tracking of autonomous vehicles with steering actuator dynamics
Path tracking control is one of the most important functions for autonomous driving. In path tracking control, high accuracy and smooth tracking are required for safe and comfort driving. In order to meet thes...
-
Article
Development of active front wheel steering control system kee** stable region in driving phase diagram
This paper presents a new active steering control system based on driving phase diagram (β fr −δ f diagram). ...
-
Article
Micro deformation of automobile hood in dip** process using stiffness
Technicians have been going through trial-and-error processes to solve very small or micro deformation on automobile hood during the painting process. In order to establish a systematic improvement procedure w...
-
Article
Experimental investigation of B20 combustion and emissions under various intake conditions for low-temperature combustion
Recently, biodiesel has emerged as an alternative fuel for achieving low-temperature combustion (LTC). Several articles in the literature have showed that oxygenated biofuels, including biodiesel, can improve ...
-
Article
Effect of Static Pre-stretch Induced Surface Anisotropy on Orientation of Mesenchymal Stem Cells
Mechanical cues in the cellular environment play important roles in guiding various cell behaviors, such as cell alignment, migration, and differentiation. Previous studies investigated mechanical stretch guid...
-
Article
Design of a signal transducer for direct conversion of wheel linear accelerations into tire lateral forces
This paper describes a design of a real-time conversion system of wheel linear accelerations into tire lateral forces. Though the tire lateral forces are important elements for analyzing vehicle dynamic contro...
-
Article
Coherence technique for noise reduction in rotary compressor
The noise and vibration of a rotary compressor, a type of multi-input, single output system, are generally studied through frequency analysis. Although this method is effective in analyzing frequency component...
-
Article
Development of an electric active rollcontrol (ARC) algorithm for a SUV
Cornering maneuvers with reduced body roll and without loss in comfort are leading requirements for car manufacturers. An electric active roll control (ARC) system controls body roll angle with motor-driven ac...
-
Article
Objectification of on-center handling characteristics based on spring-mass-damper system
As one of the major handling performance factors of vehicles and tires, on-center handling is very important at high speeds where safety and refinement are major concerns for the driver. In this paper, the ste...
