• Current Research on Agriculture and Life Sciences
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• v.21
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• pp.31-37
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• 2003

The study aimed to identify leaf sheath through the investigation a characteristic of leaf by planting depth and leaf sheath function through the investigation of effect of leaf sheath removals on growth and flowering in forcing of Lilium cultivars. The number of leaf sheath of 'Jolanda', 'Dream Land', 'Casablanca' were 6, 5, 11 in 0cm planting depth and 6, 5, 14 in 6cm planting depth. The number of leaf sheath in 'Jolanda' and 'Dream Land' were little different in according to planting depth. The other hand, the number of leaf sheath in 'Casablanca' were increased 3 when it were planted in 6cm planting depth. As leaf sheath were removed, plant height and stem root growth were decreased in 'Le Reve' and 'Casablanca'. Whereas the growth of basal root and flower number varied among of Lillium and stem diameter, the days of flowering and flower size were little different.

• Current Research on Agriculture and Life Sciences
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• v.21
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• pp.17-21
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• 2003

This study aimed to identify leaf sheath function through the investigation of effect of removal times and removed number of leaf sheath on growth and flowering in gladiolus. The leaf sheath influenced on the growth and flowering regardless of light condition at early growth stages. When total leaf sheath were removed in early growth stages, flower stalk length and spike length remarkably decreased. Whereas days of flowering were little different by leaf sheath removal. Also when removed numbers of leaf sheath were 1, 2 and 3, the growth and flowering were little different compared to control. But when removed numbers of leaf sheath were 4, flower stalk length decreased above 25cm compared to others treatment, spike length and number of flower decreased and stem diameter became thick abnormally.

• Proceedings of the KIEE Conference
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• 2003.07b
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• pp.976-978
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• 2003

Quench characteristics of HTS tapes, which are applied over-current were investigated. When the applied current exceeds the critical current of HTS tapes, the superconductor of HTS tape comes to be changed into normal conductor so that the current begins to flow through the metal sheath, which is made of good electrical conductor. In this study, the current, corresponds to 10 times $I_c$ was fed to HTS tapes. Using the V-I curves and resistance with temperature variation of HTS tapes, the distribution of the applied current between superconductor and metal sheath was analyzed. As the results, we could acquire the duration and magnitude of current to reach to thermal quench.

• Journal of the Korean Arthroscopy Society
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• v.14 no.2
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• pp.120-123
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• 2010

An inappropriate insertion of a interference device to fix the graft in the tibial tuunel can cause potential complications. We describe a case of 27-year-old man who underwent anterior cruciate ligament reconstruction using IntraFix device(DePuy Mitek, Raynham, MA). In this report we present a case of migration of IntraFix sheath by inappropriate insertion of IntraFix screw along with a review of the current literature.

• Journal of Astronomy and Space Sciences
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• v.17 no.1
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• pp.99-106
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• 2000

When a deployed probe is biased by a high positive potential during a space experiment, the payload is induced to a negative voltage in order to balance the total current in the whole system. The return currents are due to the responding ions and secondary electrons on the payload surface. In order to understand the current collection mechanism, the process was simulated with a combination of resistor, inductor, and capacitor in SPICE program which was equivalent to the background plasma sheath. The simulation results were compared with experimental results from SPEAR-3 (Space Power Experiment Aboard Rocket-3). The return current curve in the simulation was compatible to the experimental result, and the simulation helped to predict the transient plasma response to a high voltage during the plasma sheath formation.

• Journal of the Korean Vacuum Society
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• v.7 no.4
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• pp.381-389
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• 1998

The time variation of an ion current density has been analyzed based on the plasma particle dynamic model for the plasma immersion ion implantation. The implanted ion current density has its maximum value at a particular time after sheath formation, and decays. The influence of the particle collisions, the capacitive time of the substrate, and the pulse formula has been represented on the implanted ion current.

• Proceedings of the Korea Institute of Applied Superconductivity and Cryogenics Conference
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• 2003.10a
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• pp.131-133
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• 2003

The effect of axial strain and thermal cycling on the critical current is investigated for the Bi-2223/Ag PIT tapes. The axial strain was applied to the tapes by the U-shape sample holder. Two kinds of Bi-2223/Ag tapes with different Ag sheath are used to know the effect of sheath alloying for the tensile strain. The influence of thermal cycling between room temperature and 77 K on critical current are examined. Critical current is drastically decreased for Ag/alloy and Ag/alloy/alloy sheathed tapes at tensile strain above 0.22％ and 0.3％, respectively.

• Journal of Korean Foot and Ankle Society
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• v.4 no.2
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• pp.79-82
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• 2000

Tarsal tunnel syndrome caused by ganglion as space occupying lesion is unusual and known that excellent result can be expected from surgical treatment carried out soon after onset of the condition. The object of the current study is to report our experience of tarsal tunnel syndrome caused by ganglion of flexor digitorum longus tendon sheath treated with operative management in a 39 year-old man with a review of the literature.

• Proceedings of the KIEE Conference
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• 2006.11a
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• pp.405-407
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• 2006

The power system analysis based on the accurate impedance of the individual underground cable, which is the inter connected to a large power system, is required. A study on calculation method of impedance allowable current for underground cables. furthermore, various methods of bonding and earthing the sheath have been used for the purpose of eliminating or reducing the sheath losses. the effectes of bonding and earthing must be includied in impedances. therefore, the subject of predicting thermal performance of soil and cable systems has been received increasing attension. for these problems, this paper describes a general formulation of impedance that is based on the effect of crossbonding and earthing of the sheath on the 66kV, 132kV and 220kV underground cable systems. also the work is presented, for calculating the temperature rise of power cable and soil.

• Current Research on Agriculture and Life Sciences
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• v.17
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• pp.85-90
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• 1999

This study was conducted to investigation of effect of removal times and parts of leaf sheath by planting deph(0.6cm) on growth and flowering in forcing of Lilium species. Plant height is reduced by leaf sheath removal at early growth stages when bulbs were planted 6 cm of depth in 'Gelria and 0 cm in both of Jolanda' and Dream Land', respectively, but stem diameter and flower size were little different. Days to flowering of 3 cultivar except 'Gelria' were shorten in 6cm plant depth.