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이상헌,Lee, Sang-Heon 한국전기전자재료학회 2017 전기전자재료학회논문지 Vol.30 No.2
In this research, the development of fabrication technique of bulk YBaCuO superconductors for application was studied. In fluence of $BaZrO_3$ addition on magnetization characteristics of thermal pyrolysis textured YBaCuO superconductor was investigated. Fine $BaZrO_3$ particle were dispersed within the textured YBaCuO matrix by means of the thermal pyrolysis processing. Magnetic levitation force for YBaCuO superconductors were obtained using Nd-B-Fe permanent magnet, at 77 K and at the magnetic field from 0 to 5.3 K gauss. In the unadded superconductor and 5 wt% $BaZrO_3$ addition, anomalous magnetization behavior, which is characterized by the intermediate magnetic field, was observed at 77 K. Critical current density was about few hundreds $A/cm^2$ and the magnetic characteristics increased slightly by addition of $BaZrO_3$ powder. Maximum magnetic force was obtained in the YBaCuO superconducting bulk with 3 wt.% $BaZrO_3$ addition.
이상헌,강정욱,원우연,Lee, Sang-Heon,Kang, Jung-Uk,Won, Woo-Yeon 한국전기전자재료학회 2015 전기전자재료학회논문지 Vol.28 No.6
The typical winter heating unit heating mat. The product is to be found in the development of new water heating mat today. The product that circulates the water through the hose inside the mat with your existing heating mat electric heated mat is different from boiling water. However, no clear standards for noise and safety, consumer choice is giving confusing information about the product is low. We were to develop a high heat retention and stability than conventional sleeping mats to produce creative than traditional hot mats, heated mats general comparison with experimental results is a more efficient heat retention mat is produced.
유기 금속염법에 의한 고효율 전력전송용 BiSrCaCuO 초전도 전구체 합성
이상헌,Lee, Sang-Heon 한국전기전자재료학회 2005 전기전자재료학회논문지 Vol.18 No.10
High Tc superconducting with a BiSrCaCuO was prepared by the titrate method. The solid precursor produced by the dehydration of the gel at $120^{\circ}C$ for 12 h is not in the amorphous state as expected but in a crystalline state. X-tay diffraction peaks of nearly the same angular position as the peaks of high Tc phase were observed in the precursor.
이상헌,Lee, Sang-Heon 한국전기전자재료학회 2016 전기전자재료학회논문지 Vol.29 No.2
The YBaCuO superconducting bulks were prepared by the thermal diffusion process involving the peritectic reaction to investigate the effect on microstructure and superconductivity. All the diffused YBaCuO could be successively separated from superconducting 123 phase by applying the thermal diffusion process. Electromagnetic properties of treated and untreated YBaCuO superconductor were evaluated to investigate the pinning effect. It was confirmed experimentally that a large amount of magnetic flux was trapped in the thermal treated superconducting bulk than that in the untreated one, indicating that the pinning centers of magnetic flux are related closely to the occurrence mechanism of the magnetic effect.
청심연자음(淸心蓮子飮)이 Mouse유래 $C_2Cl_{12}$세포주에서 심근세포 손상의 보호 효과
이상헌,박치상,Lee, Sang-Heon,Park, Chi-Sang 대한한의학회 2006 대한한의학회지 Vol.27 No.3
Determination and differentiation of cells in the skeletal muscle lineage is positively regulated by cell-cell contact. Differentiation proteins proposed to mediate this effect include both classical MyoD and MEF members; potential interactions between the promyogenic activities of these classes of protein, however, are unknown. We show here that MyoD and MEF, two promyogenic family members that relate to each other in a cis fashion, form interactions with MyoD and MEF. These proteins contain myosin-heavy chainsand are enriched at sites of cell-cell contact between myoblasts. Therefore, in differentiation of MyoD and MEF from Chungsimyeonjaeum interact dependently, suggesting that the interactions occur in a cis fashion; consistent with this conclusion, MyoD-mediated differentiation is required for myoblasts to occur by Chungsimyeonjaeum. Inhibition in myoblasts of a MyoD by Staurosporine in its ability to associate with MEF interferes with differentiation as assessed by morphological and transcription levels, suggesting that this interaction is functionally important in myogenesis. Also, some of the differentiation-mediated proteins that are required for myogenesis seem to be based on interdependent activities of the promyogenic classical smad-subfamily.