다중혈관 관상동맥 환자에서 y-문합을 이용하여 양쪽 내흉동맥만을 사용한 우회술의 조기 성적

[신간의 별자리x] 우리/미술, 그리고 ‘슬픔의 박물관’

2017 ESC Guidelines on the Diagnosis and Treatment of Peripheral Arterial Diseases, in collaboration with the European Society for Vascular Surgery (ESVS) : Document covering atherosclerotic disease of extracranial carotid and vertebral, mesenteric, renal, upper and lower extremity arteries

/pdf/2017-esc-guidelines-on-the-diagnosis-and-treatment-of-2vt5ciu2yn.pdf

When asked to explain the importance of the discovery of conducting polymers, I offer two basic answers: first they did not (could not?) exist, and second, that they offer a unique combination of properties not available from any other known materials. The first expresses an intellectual challenge; the second expresses a promise for utility in a wide variety of applications.

Semiconducting and Metallic Polymers: The Fourth Generation of Polymeric Materials (Nobel Lecture).

2020 ACC/AHA Guideline for the Management of Patients With Valvular Heart Disease: A Report of the American College of Cardiology/American Heart Association Joint Committee on Clinical Practice Guidelines

We investigate the complex ac susceptibility of the melt-processed (Nd, Eu, Gd)- Ba-Cu-O and Nd-Ba-Cu-O. We observe the anomalous structure in the temperature dependence of the complex ac susceptibility. This anomaly may be related to the superconducting transition of the second phase.

https://iopscience.iop.org/article/10.1088/0953-2048/13/6/327/pdf

Ac susceptibility in (Nd, Eu, Gd)-Ba-Cu-O superconductors

We have performed ultrahigh vacuum scanning tunneling microscopy measurements at room temperature on (Nd 0.33 Eu 0.38 Gd 0.28 )Ba 2 Cu 3 O y (NEG123) crystals grown by an oxygen controlled melt growth process. Two characteristic nanostructures, namely, modulation and island structures have been observed on a cleaved surface of the NEG123 with high J c and high irreversible field H irr higher than 10 T at 77 K. These structures may be associated with an element substitution and the good J c – B property.

Scanning tunneling microscopy studies of high Jc NEG123 crystals

Effect of the cation composition and oxygen contents on flux pinning properties of Nd123 was investigated using single crystals grown by flux method. The observed secondary peak effect in J c - B curves was largest for Nd-rich crystal ( x ~.1), and J c systematically increased with decreasing oxygen deficiency. These results suggested that cation substitution generates more effective pinning site than oxygen deficiency in Nd123.

Effect of cation composition and oxygen nonstoichiometry on Jc-B properties of Nd123

/pdf/superconducting-ybco-foams-as-trapped-field-magnets-2n15ibf3gs.pdf

Masato Murakami

Papers

Ac susceptibility in (Nd, Eu, Gd)-Ba-Cu-O superconductors

Scanning tunneling microscopy studies of high Jc NEG123 crystals

Effect of cation composition and oxygen nonstoichiometry on Jc-B properties of Nd123

Superconducting YBCO Foams as Trapped Field Magnets

Properties and Applications of Bulk High Temperature Superconductors. A Research on Active Magnetic Levitation of Multiple High-Tc Superconductors.