• Journal of Sasang Constitutional Medicine
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• v.7 no.2
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• pp.265-274
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• 1995

Skin temperatures were tested under the same conditions by using the thermography in order to extract the biological characteristics of the physical constitutional types in according to the Lee's 4 type physical constitutional theory. The subjects of this experiment were 14 ; 5 Macro-Negative subjects, 5 Micro-Negative subjects, 3 Micro-Positive subjects and 1 Macro-Positive subject. All subjects were stimulated with 2.5Hz 30Vpeak-peak pulses for 2 minutes. As the results, in normal prestimulation state the skin temperatures of the trunk in Micro-Positive and Macro-Positive subjects were higher than those of Macro-Negative and Micro-Negative subjects. In Macro-Negative subjects the reflected skin temperature of lever was the highest in the anterior trunk. In Micro-Negative subjects the reflected skin temperature of kidney was the highest in the trunk. In Micro-Positive subjects the reflected skin temperature of stomach was the highest in the trunk.In Macro-Positive subject the reflected skin temperature of lung was the highest in the trunk. In transient poststimulation state, heart rate was decreased in 7 cases among of 10 Macro-Negative ana Micro-Negative subjects, but it was increased in 3 cases among of 4 Micro-Positive and Macro-Positive subjects. And the hand temerature was increased in 8 cases among of 10 Macro-Negative and Micro-Negative subjects, but it was decreased in 3 cases among of 4 Micro-Positive and Macro-Positive subjects.

• Journal of Institute of Control, Robotics and Systems
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• v.6 no.3
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• pp.309-316
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• 2000

A coordination method for a macro/micro robot with separate controllers is proposed and evaluated. The macro/micro robot system generally has independent controllers for the macro and the micro robot respectively. A controller for the coordination of the macro and the micro robot has been designed based on the stable independent controller of each system. The method and trajectory generation method is also proposed to track the moving desired position rapidly. The control method and trajectory generation method is also proposed to track the moving desired position rapidly. The control strategy has been implemented to the macro/micron robot system to evaluate the performance. The experimental results show that the proposed method for maintaining the micro robot within its workspace has uniform performance over the various range of the bandwidth and the proposed trajectory generator is shown to be efficient.

• Proceedings of the KOSOMBE Conference
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• v.1997 no.05
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• pp.271-274
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• 1997

Skin temperatures, heart rates and skin conductance levels were tested in order to extract the biological characteristics of the physical constitutional types in according to the Lee's 4 type physical constitutional theory. The subjects of this experiment were 14 ; 5 Macro-Negative subjects, 5 Micro-Negative subjects, 3 Micro-Positive subjects and 1 Macro-Positive subject. All subjects were stimulated with 2.5Hz 30V peak-peak pulses for 2 minutes. As the results, in normal prestimulation state the skin temperatures of the trunk in Micro-Positive and Macro-Positive subjects were higher than those of Macro-Negative and Micro-Negative subjects. In Macro-Negative subjects the reflected skin temperature of lever was the highest in the anterior trunk. In Micro-Negative subjects the reflected skin temperature of kidney was the highest in the trunk. In Micro-Positive subjects the reflected skin temperature of stomach was the highest in the trunk. In Macro-Positive subject the reflected skin temperature of lung was the highest in the trunk. In transient poststimulation state, heart rate was decreased in 7 cases among of 10 Macro-Negative and Micro-Negative subjects, but it was iscreased in 3 cases among of 4 Micro-Positive and Macro-Positive subjects. And the hand temperature was increased in 8 cases among of 10 Macro-Negative and Micro-Negative subjects, but it was decreased in 3 cases among of 4 Micro-Positive and Macro-Positive subjects.

• International Journal of Concrete Structures and Materials
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• v.11 no.1
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• pp.29-43
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• 2017

This study investigates the blast resistance of fiber-reinforced cementitious composite (FRCC) panels, with fiber volume fractions of 2%, subjected to contact explosions using an emulsion explosive. A number of FRCC panels with five different fiber mixtures (i.e., micro polyvinyl alcohol fiber, micro polyethylene fiber, macro hooked-end steel fiber, micro polyvinyl alcohol fiber with macro hooked-end steel fiber, and micro polyethylene fiber with macro hooked-end steel fiber) were fabricated and tested. In addition, the blast resistance of plain panels (i.e., non-fiber-reinforced high strength concrete, and non-fiber-reinforced cementitious composites) were examined for comparison with those of the FRCC panels. The resistance of the panels to spall failure improved with the addition of micro synthetic fibers and/or macro hooked-end steel fibers as compared to those of the plain panels. The fracture energy of the FRCC panels was significantly higher than that of the plain panels, which reduced the local damage experienced by the FRCCs. The cracks on the back side of the micro synthetic fiber-reinforced panel due to contact explosions were greatly controlled compared to the macro hooked-end steel fiber-reinforced panel. However, the blast resistance of the macro hooked-end steel fiber-reinforced panel was improved by hybrid with micro synthetic fibers.

• Journal of Biomedical Engineering Research
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• v.14 no.4
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• pp.349-354
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• 1993

To investigate the relations between the physical constitutions, the acid-base balance, and the autonomic nervous function, the blood gas, the heart rate and the concentrations of Na, K of serum were measured pre-and poststimulation. As the result, it is shown that in the normal condition the macro-negative(strong liver- weak lung type) is the metabolic alkalosis, the macro-positive (strong lung-weak liver type) is the metabolic acidosis, the micro-negative(strong kidney-weak spleen type) is the alkalosis and the micro-positive (strong spleen-weak kidney type) is the acidosis. And the ntacro-positive and micro-positive are the sympathetic lead, the macro-negative and micro-negative are the parasympathetic lead. In the macro-positive and micro-positive subjects, the concentration of K in serum is relatively high. This si coincided with the acidosis. But in the macro-negative and micro-negative subjects, the concentration of K in serum is relatively low. This is coincided with the alkalosis.

• 제어로봇시스템학회:학술대회논문집
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• 2002.10a
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• pp.109.1-109
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• 2002

This paper presents a macro/micro flip chip mounting head system for precise force control. In the proposed macro/ micro system, the macro actuator is conventional do servomotor with a ball screw mechanism and the micro actuator is a voice coil motor(VCM) that consists of four NdFeB magnets and a winded moving coil. For force control, a sensitive strain-gauge force sensor is mounted in the micro actuator. Through harmonic motion between macro and micro actuator, we would like to get precise contact force control when small sized flip chip is mounted on flexible substrate in high speed. In order to show the effectiveness of the proposed macro/micro flip chip mounting head system, we com...

• International Journal of Fuzzy Logic and Intelligent Systems
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• v.4 no.3
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• pp.316-321
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• 2004

In this paper, we have developed a new mounting head system for flip chip. The proposed head system consists of a macro/micro positioning actuator for stable force control. The macro actuator provides the system with a gross motion while the micro device yields fine tuned motion to reduce the harmful impact force that occurs between very small sized electronic parts and the surface of a PCB(printed circuit board). In order to show the effectiveness of the proposed macro/micro chip mounting system, we compared the proposed system with the conventional chip mounting head equipped with a macro actuator only. A series of experiments were executed under the mounting conditions such as various access velocities and PCB stiffness. As a result of this study, a satisfactory voice coil actuator as the micro actuator has been developed, and its performance meet well the specifications desired for the design of the chip mounting head system and show good correspondence between theoretical analysis and experimental results.

• 제어로봇시스템학회:학술대회논문집
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• 2000.10a
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• pp.121-121
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• 2000

This paper presents a design of macro-micro system for high-speed mounting of micro-chips. A macro motion device is driven by DC servomotor and ball screw mechanism. To obtain fast response, a micro motion device utilizes a precision elector magnetic actuator In order to reduce peak impact force, We evaluate the design parameters that have an effect on it. And a characteristic of response is simulated using PID controller in velocity and force control.

• 제어로봇시스템학회:학술대회논문집
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• 2003.10a
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• pp.1060-1065
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• 2003

This paper contributes to development of a new chip mounting head system for flip chip. Recently, the LDM(Linear DC Motor) has been widely used, because it has particular merits than the rotary type motors. In this paper, we proposed a macro/micro positioning system for force control of a chip mounting system. In the proposed macro/micro system, the macro actuator provide the system with a gross motion while the micro device yields fine tuned motion to reduce the harmful impact force that occurs between very small sized electronic parts and PCB surface. In order to prove the effectiveness of the proposed macro/micro chip mounting system, we compared the proposed chip mounting head with the conventional chip mounting head equipped with a macro actuator only. A series of experiments were executed under the mounting conditions of various access velocities and PCB stiffness. As a result of this study, a satisfactory voice coil actuator as the micro actuator has been developed, and its performance meet well the specifications desired for the design of the chip mounting head system and show good correspondence between theoretical analysis and experimental results.

• International Journal of Control, Automation, and Systems
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• v.3 no.3
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• pp.461-468
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• 2005

This paper proposes a wheel-assembly automation system, which assembles a wheel into a hub of a vehicle hung to a moving hanger in a car manufacturing line. A macro-micro manipulator control strategy is introduced to increase the system bandwidth and tracking accuracy to ensure insertion tolerance. A camera is equipped at the newly designed wheel gripper, which is attached at the center of the end-effector of the macro-micro manipulator and is used to measure position error of the hub of the vehicle in real time. The redundancy problem in the macro-micro manipulator is solved without complicated calculation by assigning proper functions to each part so that the macro part tracks the velocity error while the micro part regulates the fine position error. Experimental results indicate that tracking error satisfies the insertion tolerance of assembly $({\pm}1mm)$, and thus it is verified that the proposed system can be applied to the wheel assembly task on a moving hanger in the manufacturing line.