• Journal of Korean Society of Forest Science
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• v.5 no.1
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• pp.1-3
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• 1966

According to the test of suitability on the acting volume table based upon D.B.H. and Height, the volume by the standing volume table of soft woods produced in Kangwon Province is larger than the true volume and the volume by the standing volume table prepared in form factor 0.45 is smaller than the true volume on the all species obviously. But the volume by the standing volume table of the red pine produced in Kangwon Province and that of Korean white pine prepared in Forest Expriment Station equal to the true volume well.

• Journal of rehabilitation welfare engineering & assistive technology
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• v.8 no.3
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• pp.161-168
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• 2014

This study conducted a comparative analysis of the contraction pattern of trunk and lower limbs muscles of handicapped children with brain lesions during the use of foam pad and air pad for fixing a standing table to the body for pediatric patients with brain lesions using a standing table product applied with a pneumatic air fitting system. There was a difference in the measurement of muscle strength activity by muscle in accordance with pad type (foam pad vs. air pad). A large difference was found with big movements (movements of eating), while a small difference was discovered with small movements (writing and reading movements). This was found to furnish a little more comfort to users compared with the existing foam pad during the use of a standing table product applied with a pneumatic air fitting system.

• The Journal of Korean Physical Therapy
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• v.13 no.1
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• pp.161-174
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• 2001

The purpose of this study was to reduce the spasticity of plantarflexion. the subjects of this study were 30 hemiplegic patients with stroke who received of physical therapy in JinJu o o hospital from May to July 2000. the subjects were divided into three groups(FES groups 10, FES + tilt table-wedge board standing groups 10, & tilt table-wedge board standing groups 10). The result were as follow 1. FES therapy was a effective method to reduce the spasticity of plantarflexor. there was a significant difference in modified Ashworth scale(p<.01). there was a significant difference in weight bearing ratio between nonparetic and paretic side(p<.01). 2. Tilt table-wedge board standing therapy was a effective method to reduce the spasticity of plantarflexor to a degree but there was a no significant difference in modified Ashworth scale(p<.05). there was a significant difference in weight bearing ratio between nonparetic and paretic side(p<.01). 3. Tilt table-wedge board standing therapy + FES therapy was a effective method to reduce the spasticity of plantarflexor. there was a significant difference in modified Ashworth scale(p<.01). there was a significant difference in weight bearing ratio between nonparetic and paretic side(p<.01) 4. There was a significant difference in weight bearing ratio between nonparetic and paretic side according to the grade spasticity(p<.01). 5. For normal persons vs hemiplegic patients, there was a significant different in weight bearing ratio between nonparetic and paretic side(experimental subjects 1 p<.01, experimental subjects 2 p<.01, control subjects p<.05).

• The Journal of Korean Physical Therapy
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• v.25 no.2
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• pp.71-75
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• 2013

Purpose: Although use of a tilt table is recommended in clinical practice, there are no published guidelines regarding pressure and inclination for tilt table use. The aim of the current study was to assess the changes of pressure on sacrum and buttock according to different inclination of the tilt table in healthy subjects. Methods: Thirty two healthy subjects participated in this study. Subjects were positioned supine on the tilt table and safety straps were secured across the chest, pelvic, and knee with sufficient tension to prevent the subjects from falling. Pressure and peak pressure of sacrum and buttock were measured using pressure mapping system with the tilt table standing at $0^{\circ}$, $15^{\circ}$, $30^{\circ}$, $45^{\circ}$, $60^{\circ}$, $75^{\circ}$, and $85^{\circ}$ inclination. Results: A significant decrease in the pressure of sacrum and buttock was achieved by increasing tilt table inclination (p<0.05): $0^{\circ}{\sim}15^{\circ}$ (8.16%), $15^{\circ}{\sim}30^{\circ}$ (8.02%), $30^{\circ}{\sim}45^{\circ}$ (11.61%), $45^{\circ}{\sim}60^{\circ}$ (16.18%), $60^{\circ}{\sim}75^{\circ}$ (16%), and $75^{\circ}{\sim}85^{\circ}$ (11.48%). A significant decrease in the peak pressure was achieved by increasing tilt table inclination (p<0.05): $30^{\circ}{\sim}45^{\circ}$ (9.91%), $45^{\circ}{\sim}60^{\circ}$ (19.24%), $60^{\circ}{\sim}75^{\circ}$ (19.93%), and $75^{\circ}{\sim}85^{\circ}$ (11.48%). No significant peak pressure change was observed in $0^{\circ}{\sim}15^{\circ}$, $15^{\circ}{\sim}30^{\circ}$ tilt table inclination (p>0.05). Conclusion: The results of this study showed that the pressure of sacrum and buttock were decreased according to increasing tilt table inclination in healthy subjects. Guidelines are needed in order to optimize patient safety and overall outcome for tilt table standing.

• Asian Journal of Turfgrass Science
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• v.3 no.1
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• pp.34-38
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• 1989

This research was carried out to elucidate on standing crops , dry matter yields , the nutritive value and in vitro digestihility according to mowing frequency and period during the growing season in the 3cm moving plot in Korean Lawn , Zoysia japonica Sheud . The increasing tendency in the standing crops was showed yield from May to Septemher . In the dry matter yield , there was a tendency of rapid increase from May to August ( maximum level ). Afterwards there appeared a tendency of decrease slight ( Table 3). The nutritive value and in vitro digestihility ; The crude protein and crude fat in the 3cm moving plot showed a tendency of slight decrease as a moving period and frequency . On the other hand , Neutral detergeat fiber , Acid detergent fiber and cellulose showed a tendency of slight increase as mowing period and frequency . in vitro digestibility appeared a rapid decreasing rate as a mowing period and frequency was delayed (table 2.4).

• PNF and Movement
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• v.16 no.3
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• pp.389-395
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• 2018

Purpose: The purpose of this study was to investigate whether the respiratory function of patients with stroke was different on the ground and under water. Methods: We recruited 14 adults who had experienced a stroke (12 male, 2 female) for our study. We measured forced vital capacity, forced expiratory volume at one second, maximum inspiratory pressure, and maximum expiratory pressure when the participants breathed on the ground and under water. On the ground, the participants were safely supported using a table and chair and were measured in a standing posture. For measuring under water, the participants were immersed in water in a standing position to clavicle height. The participants were measured while standing, and the assistant supported them when they needed help. The collected data were analyzed by a paired t-test. Results: Forced vital capacity and forced expiratory volume at one second were significantly lower in water than on the ground when breathing at maximum. Maximum inspiratory pressure was not significantly different when standing on the ground or in water, but maximum expiratory pressure was significantly higher in water than on the ground. Conclusion: It has been confirmed that the hydrostatic pressure affecting stroke patients immersed in water affects the forced expiratory volume at one second while reducing the forced vital capacity and increasing the maximum expiratory pressure.

• Nuclear Engineering and Technology
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• v.51 no.3
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• pp.884-893
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• 2019

Spent fuel racks are steel structures used in the storage of the spent fuel removed from the nuclear power reactor. Rack units are submerged in the depths of the spent fuel pool to keep the fuel cool. Their free-standing design isolates their bases from the pool floor reducing structural stresses in case of seismic event. However, these singular features complicate their seismic analysis which involves a transient dynamic response with geometrical nonlinearities and fluid-structure interactions. An accurate estimation of the response is essential to achieve a safe pool layout and a reliable structural design. An analysis methodology based on the hydrodynamic mass concept and implicit integration algorithms was developed ad-hoc, but some dispersion of results still remains. In order to validate the analysis methodology, vibration tests are carried out on a reduced scale mock-up of a 2-rack system. The two rack mockups are submerged in free-standing conditions inside a rigid pool tank loaded with fake fuel assemblies and subjected to accelerations on a unidirectional shaking table. This article compares the experimental data with the numerical outputs of a finite element model built in ANSYS Mechanical. The in-phase motion of both units is highlighted and the water coupling effect is detailed. Results show a good agreement validating the methodology.

• Journal of Biomedical Engineering Research
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• v.27 no.5
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• pp.260-266
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• 2006

Due to damaged vertebrae nerves, serious disease and aging, patients who have to lie down for long period of time need to exercise to maintain up-right standing position and recover their paralytic leg. This study describes a development of an intellectual tilt table which can provide a patient with rehabilitating condition. This can be possible by measuring and displaying the hee bent angle and pressure for each foot during exercise in real time. It is expected that the patient's exercising effect can increase by monitoring these two values during exercise.

• Earthquakes and Structures
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• v.17 no.3
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• pp.245-256
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• 2019

An experimental study was conducted to evaluate the dynamic behavior of a free-standing frame equipped with a movable base system using cast iron and mortar as the bearing materials. The preliminary friction test indicated that a graphite layer developed on the interface and exhibited stable friction behavior. The friction coefficient ranged from 0.33 to 0.36 when the applied normal compression stress ranged from 2.6 to 5.2 MPa. The effect of the variation of normal compression stress would be small. Shaking table tests on the free-standing frame showed that rock, slide, and rock-slide responses occurred. The cumulative slide distance reached 381 mm under JMA Kobe wave excitation; however, only a few cyclic slides occurred at the same locations along the moving track. Most surfaces sustained single slides. Similar results can be observed in other shaking conditions. The insufficient cyclic sliding and significant rocking resulted in a few graphite layers on the mortar surfaces. Friction coefficients were generally similar to those obtained in the preliminary friction tests; however, the values fluctuated when the rocking became significant. The collisions due to rocking caused strong horizontal acceleration responses and resulted in high friction coefficient. In addition, the strong horizontal acceleration responses caused by the collisions made the freestanding specimen unable to reduce the input horizontal acceleration notably, even when slippage occurred. Compared with the counterpart fixed-base specimen, the specimen equipped with the iron-mortar base could reduce the horizontal acceleration amplification response and the structural deformation, whereas the vertical acceleration response was doubled due to collisions from rocking.

• Journal of Korean Society of Forest Science
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• v.7 no.1
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• pp.45-49
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• 1968

This experiment was carried out to study moisture contents including in the woody parts of standing Pitch Pine trees. The moisture measuring samples were made from the parts of root, branch, top, sapwood and heartwood of test trees. The test trees and average moisture contents measured from the parts of trees are as table (1) and (2). According to the results this study may be concluded as followings. 1) In the winter felled Pitch Pine trees highest moisture contents are shown in the top wood but lowest in the heartwood among the parts of tree. 2) In comparing moisture contents showing between two parts of tree, significant differences are show between top or heartwood and other parts but between branch or sapwood and root are not shown. 3) As general there is no significant variation in moisture contents of root, sapwood and heartwood among the test trees but branch wood is shown considerable variation.