• Journal of the Korea Convergence Society
• /
• v.10 no.12
• /
• pp.169-175
• /
• 2019

The purpose of this study was to determine whether changes of multiple lying position might effect the convergence pulmonary function of the 20s men of mild intellectual disabilities. Twenty subjects of mild intellectual disabilities were participated in the experiment. Subjects were assessed for vital capacity by using Fit mate according to the multiple lying position changes(supine position, right sidelying position, left sidelying position, prone position). One-way repeated ANOVA analyzed each region data of vital capacity of subjects according to their multiple lying position. The result of the experiment showed that the 20s men of mild intellectual disabilities have more higher vital capacity to right sidelying position than another lying position. This study suggests that the pulmonary functional data of 20s men of mild intellectual disabilities in this experiment can be used as a basic respiratory one for the bed exercise programs in the area of the physical activities.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.10 no.7
• /
• pp.1520-1525
• /
• 2009

In this paper, we study and simulate the suggested position control system using GPS and USN to replace the existing control system of a crane. For the correct approach, the position control system of a crane is divided into the control system of the ground station and the mobile station The hardware is comprised of GPS receiving module to receive the position control data of a crane from GPS satellites, bluetooth communication module for the data communication between the ground station and the mobile station, supersonic sensor module for a precise position control of a crane, motor to replace a crane roller, embedded MCU(ATmega128L) and so on. In here, an embedded MCU controls GPS receiving module, bluetooth communication module and supersonic sensor module. The Software is comprised of three programs. Three programs are the program to filter GGA output part in a receiving data of GPS receiving module, the driving program for supersonic sensor module, the digital map program to monitor a crane location. From the simulation results, it is demonstrated that the proposed system has the capability of crane position control with 1cm precision.

• Journal of Korean Medicine Rehabilitation
• /
• v.34 no.3
• /
• pp.75-88
• /
• 2024

Objectives This study was designed to compare curvature and intervertebral disc angle of the cervical spine in different prone positions. Methods 30 adults aged 19~60 years were enrolled in this study. Volunteers in this uncontrolled trial were taken an x-ray of cervical spine on lateral. Four radiographs were taken for each volunteer, in standing, prone position with U-type pillow (prone position A), rectangular pillow (prone position B), and prone position without pillow (prone position C). After measuring the cervical angle, Ishihara index, craniovertebral angle, intervertebral angle, we analysed the lordotic angle and foward head posture. The data was anlysed by analysis of variance and pearson correlation coefficient. Results Cervical angles of prone position without pillow (prone position C) significantly decreased compared with those in standing position (p<0.001). Ishihara index of prone position without pillow (prone position C) also significantly decreased compared with those in standing position (p<0.001). Craniovertebral angle of prone position with pillow (prone position A, B) significantly increased with those in standing position (p<0.001). Intervertebral angle of prone position with pillow (prone position A, B) at the C3-7 levels significantly increased with those in standing position (p<0.001). Intervertebral angle of prone position without pillow (prone position C) at the C3-5 levels significantly decreased with those in standing position (p<0.001). The angle of intervertebral disc significntly decreased in kyphotic cervical levels. Conclusions Different prone position clearly resulted changes in cervical spine curvature and intervertebral disc angle. And it is related to cervical spine lordotic angle and sagittal alignment in standing position and prone position.

• International Journal of Aeronautical and Space Sciences
• /
• v.1 no.2
• /
• pp.43-49
• /
• 2000

The Global Positioning System (GPS) is becoming more attractive navigation means for LEO (Low Earth Orbit) spacecraft due to the data accuracy and convenience for utilization. The anomalies such as serious variations of Dilution-Of-Precision (DOP), loss of infrequent 3-dimensional position fix, and deterioration of instantaneous accuracy of position and velocity data could be observed, which have not been appeared during the ground testing. It may cause lots of difficulty for the processing of the orbit control algorithm using the GPS data. In this paper, the characteristics of the GPS data were analyzed according to the configuration of GPS receiver such as position fix algorithm and mask angle using GPS navigation data obtained from the first Korea Multi-Purpose Satellite (KOMPSAT). The problem in orbit tracking using GPS data, including the infrequent deterioration of the accuracy, and an efficient algorithm for its countermeasures has also been introduced. The reliability and efficiency of the modified algorithm were verified by analyzing the effect of the results between algorithm simulation using KOMPSAT flight data and ground simulator.

• Korean Journal of Applied Biomechanics
• /
• v.20 no.2
• /
• pp.231-237
• /
• 2010

The moving trajectory of a golf ball is mainly determined by the angles of the clubface and the trajectory of the club shaft. This paper presents a computer program for analyzing the position and angles of the club while the club moves in a circular motion. For this purpose, a mathematical algorithm was developed and implemented on the experimental data(5 m and 10 m carries) using VC++ and OpenGL. A skilled female golfer(174 cm, 65 kg, 0 handicap) was participated in data collection for the short approach shots. An iron club(Titleist 52 degree, 91.5 cm length, 450 g mass), attached with five reflective markers(12 mm), was used to collect experimental data. However, exact 3D coordinates and angles of the clubface are not directly calculated from measured data. A reverse engineering platform(Minolta Vivid910 hardware and Rapidform software) was thus employed to acquire the scanned data of the clubface. The scanned data and measured data were first aligned by applying appropriate coordinate transformations, and then exact coordinates and angles of clubface could be obtained at each position during circular motion. The program(Club Motion Analysis 1.0) exports the open, heel, loft angles of the club.

• Proceedings of the KIPE Conference
• /
• 2004.07b
• /
• pp.976-980
• /
• 2004

This paper presents a position sensorless control system of Switched Reluctance Motor (SRM) using neural network. The control of SRM depends on the commutation of the stator phases in synchronism with the rotor position. The position sensing requirement increases the overall cost and complexity. In this paper, the current-flux-rotor position lookup table based position sensorless operation of SRM is presented. Neural network is used to construct the current-flux-rotor position lookup table, and is trained by sufficient experimental data. Experimental results for a 1-hp SRM is presented for the verification of the proposed sensorless algorithm.

• Journal of Korean Academy of Nursing
• /
• v.27 no.3
• /
• pp.503-509
• /
• 1997

This study was undertaken to identify optimal head elevation and position in the care of the neurosurgical patient with a cerebral aneurysm. The effects of 0°. 15° and 30° head elevation and three positions (supine, side tying position opposite to the operation site, and side tying position on the same side as the operation site) on ICP was studied in fourteen neurosurgical patients with cerebral aneurysms. The results are as follows : 1. The mean intracranial pressure was significantly lower when the patient's head was elevated at 30° as compared to 0° and 15°. 2. The mean intracranial pressure was significantly lower when the patient was positioned in the supine as compared to side tying position opposite to the operation site and side tying position on the same side as the operation site. The data indicate that head elevation to 30° and the supine position reduce ICP in neurosurgical patients with cerebral aneurysm.

• Journal of the Korea Fashion and Costume Design Association
• /
• v.17 no.3
• /
• pp.61-71
• /
• 2015

In this study, visual evaluation was performed with changes in peplums design to provide data which can enhance wearing image effects at the production of peplums one-piece. According to changes in volume and position of peplums, a total of 9 stimulants were chosen. Then, they were evaluated using a seven-point rating scale against 50 fashion students. The data has been analyzed by Factor Analysis, ANOVA, $Scheff{\acute{e}}$'s Test and the MCA method. The results of the study are as follows : 1. According to factor analysis, the components of visual evaluation depending on the changes in volume and position variations of peplums were divided into four factors: elegance, individuality, upper body correction and upper body emphasis. 2. According to visual evaluation depending on changes in the position variations of peplum, 'high waist' and 'natural waist' revealed a significant difference in elegance, individuality and upper body correction. 'Low waist' was observed in all four positions. 3. According to visual evaluation depending on the changes in volume of peplums, a significant difference at $45^{\circ}$ was observed in except for elegance. Significant differences at $90^{\circ}$ and $180^{\circ}$ were observed in all four positions. 4. In terms of interactions over in volume and position variations of peplums, interaction effects were found in two factors.

• Journal of Institute of Control, Robotics and Systems
• /
• v.3 no.5
• /
• pp.497-502
• /
• 1997

In this study an automatic rolling-coil labeling system using robot vision system and peripheral mechanism is proposed and implemented, which instead of the manual labor to attach labels Rolling-coils in a steel mill. The binary image process for the image processing is performed with the threshold, and the contour line is converted to the binary gradient which detects the discontinuous variation of brightness of rolling-coils. The moments invariant algorithm proposed by Hu is used to make it easy to recognize even when the position of the center are different from the trained data. The position error compensation algorithm of six degrees of freedom industrial robot manipulator is also developed and the data of the position of the center rolling-coils, which is obtained by floor mount camera, are transferred by asynchronous communication method. Therefore, even if the position of center is changed, robot moves to the position of center and performs the labeling work successfully. Therefore, this system can be improved the safety and efficiency.

• Journal of Institute of Control, Robotics and Systems
• /
• v.13 no.1
• /
• pp.39-45
• /
• 2007

This paper proposes a method of container position measurement using automatic landing system that is estimated by a laser range finder. In the most of container position measurement methods, CCD cameras or laser scanners have been used to get the source data. However those sensors are not only weak for disturbances, for examples, the light, fog, and rain, but also the system cost is high. When the spreader arrives at the goal position, it is still swung by inertia or by wind effect. In this paper, the spreader swung data have been used to find the container position. The laser range finder is equipped in the front side of spreader. It can measure distance and relative position between spreader and container. This laser range finder can be rotated as desired by a motor. And a tilt sensor is equipped on the spreader to measure spreader sway. The relative position information between the spreader and a container using the laser range finder and tilt sensor is estimated through the geometrical analysis.