• Proceedings of the Korean Society of Dyers and Finishers Conference
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• 2004.04a
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• pp.199-203
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• 2004

The azo red pigments for textile printing containing amino-N-substituted benzamide derivatives as diazo components and 2-hydroxy-3-naphthoyl derivatives as coupling components were prepared. They have been printed on cotton, and the fastness, such as light, washing, dry cleaning, rubbing and heat stability was estimated. The new azo red pigments were valuable colorants in case of textile printing.

• Journal of Haehwa Medicine
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• v.7 no.2
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• pp.497-508
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• 1999

In the literatual study on the NAM-SUNG-BUL-YOUK, the results were obtained. 1. NAM-SUNG-BUL-YOUK is mainly caused by deficiency of kidney jung, and is subsiderly caused by deficiency of kidney yang, deficiency of vital energy and blood, depression of vital energy, stagnation of wetness and phlegm, wetness and heat, trauma, and so on. 2. Increasing kidney jung is the main method of the treatment of NAM-SUNG-BUL-YOUK. Warmming kidney and strengthening kidney yang, increasing both vital energy and blood, solving of liver energy, promotion of blood circuation to get rid of blood stasis, drying wetness and removing phlegm, cooling wetness and heat, use the fragrance of smelling hot and wram, etc. are also used to treat it. 3. NAM-SUNG-BUL-YOUK is prescripted as follows : Chanyukdan and Yukmigiwhangtang are used for the deficiency of Sin jung(賢精); Jangchunkwangsadan, Oujayeonjongwhan, Youguiyeum, and Palmigiwhangtang are used for the deficiency of Sin yang(賢陽); Daebowonjeon and Palmultang are used for the deficiency of energy and blood; Sihosogansan is used for the depression of liver energy; Dodamtang and Yijintang and Singitang are used for the stagnation of phlegm; and finally, Yongdamsagantang and Bihaebunchungyeum are used for wetness and heat. Above literatual study shows that NAM-SUNG-BUL-YOUK can be cured with highly ratio. It is accomplished by the conduction of appropriate herbs, acupunctures and moxibustions through method of oriental medicine.

• Journal of Powder Materials
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• v.25 no.4
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• pp.340-345
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• 2018

Additive manufacturing by electron beam melting is an affordable process for fabricating near net shaped parts of titanium and its alloys. 3D additive-manufactured parts have various kinds of voids, lack of fusion, etc., and they may affect crack initiation and propagation. Post process is necessary to eliminate or minimize these defects. Hot isostatic pressing (HIP) is the main method, which is expensive. The objective of this paper is to achieve an optimum and simple post heat treatment process without the HIP process. Various post heat treatments are conducted for the 3D-printed Ti-6Al-4V specimen below and above the beta transus temperature ($996^{\circ}C$). The as-fabricated EBM Ti-6Al-4V alloy has an ${\alpha}^{\prime}$-martensite structure and transforms into the ${\alpha}+{\beta}$ duplex phase during the post heat treatment. The fatigue strength of the as-fabricated specimen is 400 MPa. The post heat treatment at $1000^{\circ}C/30min/AC$ increases the fatigue strength to 420 MPa. By post heat treatment, the interior pore size and the pore volume fraction are reduced and this can increase the fatigue limit.

• Journal of the Korean Geosynthetics Society
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• v.16 no.2
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• pp.159-164
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• 2017

This paper presents the results of an investigation into the thermo-hydromechanical response of weathered granite soil. The effect of forced change temperature and relative humidity at the soil layer boundaries were monitored during heating. A series of load settlement test were performed on layers of compacted, unsatureated weathered granite soil with geosynthetic embedded at mid height before and after application of heat exchanger to the base of the soil layers. The results from this study indicated the potential for using embedded heat exchangers for the mechanical improvement of geotechnical systems incorporating weathered granite soil.

• Proceedings of the Korean Society of Dyers and Finishers Conference
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• 2008.04a
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• pp.37-39
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• 2008

The purpose of this study is to improve the defects of DPP fabric by heat setting and to describe the change of physical properties of DPP fabrics. The thermosetting was carried out in autoclave from 100 to 140$^{\circ}C$ temperature range for 10min.. In this study, we investigated the effect of the thermosetting temperatures on the structural, thermal, mechanical properties and dyeability of DPP fabrics. The melting peak of multi peak changed to single peak with an increased thermosetting temperatures. The melting energy(J/g), the tensile strength and elongation were found to increase with increasing temperature of heat setting. The diffraction peak at Bragg angle(2${\theta}$) about 13.8$^{\circ}$ were very strong, and diffraction intensity, d-spacing and half-width decreased with increasing thermosetting temperatures. On the other hand, the dyeability(K/S) and crease recovery decreased with an increasing thermosetting temperatures.

• Journal of Power System Engineering
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• v.17 no.5
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• pp.78-85
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• 2013

A high thermal conductivity material, namely graphene is treated by planetary ball milling machine to transport the heat by increasing the temperature. Experiments were performed to assess the heat transfer enhancement benefits of coating the bottom wall of copper substrate with graphene. It is well known that the graphene is unable to disperse into base fluid without any treatment, which is due to the several reasons such as attachment of hydrophobic surface, agglomeration and impurity. To further improve the dispersibility and thermal characteristics, planetary ball milling approach is used to grind the raw samples at optimized condition. The results are examined by transmission electron microscopy, x-ray diffraction, Raman spectrometer, UV-spectrometer, thermal conductivity and thermal imager. Thermal conductivity measurements of structures are taken to support the explanation of heat transfer properties of different samples. As a result, it is found that the planetary ball milling approach is effective for improvement of both the dispersion and heat carriers of carbon based material. Indeed, the heat transfer of the ground graphene coated substrate was higher than that of the copper substrate with raw graphene.

• Proceedings of the SAREK Conference
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• 2004.11a
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• pp.105-105
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• 2004

• Journal of Energy Engineering
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• v.24 no.1
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• pp.42-50
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• 2015

To evaluate the heat removal capability of a condenser tube in the PCCS of an advanced nuclear power plant, a steam condensation experiment in the presence of noncondensable gas on a vertical tube is performed. The average heat transfer coefficient is measured on a vertical tube of 40 mm in O.D. and 1.0 m in length. The experiments covers the pressures of 2-4 bar, and the mass fraction of air ranges from 0.1 up to 0.7. From the experimental results, the effects of the total pressure and the concentration of air on the condensation heat transfer coefficient are investigated. The measured data are compared with the predictions by Uchida's and Tagami's correlations, and it is revealed that these models underestimate the condensation heat transfer coefficient of the steam-air mixture.

• Proceedings of the SAREK Conference
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• 2006.11a
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• pp.36-36
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• 2006

• Proceedings of the SAREK Conference
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• 2004.06a
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• pp.88-88
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• 2004