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Article
Pathophysiology and surgical outcomes of patients with fungal peritonitis from upper gastrointestinal tract perforation: a retrospective study
To compare the pathophysiology and surgical outcomes of emergency surgery for upper gastrointestinal tract perforation with and without fungal peritonitis and identify the risk factors for fungal peritonitis.
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Article
Direct Observation of Reverse Magnetic Domain and Magnetic Domain Wall Motion in Nd-Fe-B Magnet at High Temperature by Lorentz Microscop
We conducted the in-situ observations of the magnetic domain structure change in Nd-Fe-B magnets at high temperature by transmission electron microscopy (TEM) / Lorentz microscopy with applying an external mag...
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Article
Observations of Magnetic Domain Structure Change in Nd2Fe14B Magnets at Elevated Temperature with External Magnetic Field by Lorentz Microscopy
In this study, we conducted the in-situ observations of the magnetic domain structure change in Nd2Fe14B magnets at elevated temperature by transmission electron microscopy (TEM) / Lorentz microscopy. The in-situ...
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Article
Hetero-epitaxial Growth of (1, 0, m+1) One Axis-oriented Bismuth Layered Structured Ferroelectrics Thin Films Directly Crystallized by MOCVD
Bismuth layered structured ferroelectrics (BLSF) thin films with different number of octahedron number (m-number) were prepared by MOCVD and directly crystallized on the substrates. Directly-crystallized SrBi2Ta2
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Article
Evaluation of additive effects and homogeneity of the starting mixture on the nuclei-growth processes of barium titanate via a solid state route
In an attempt to obtain finest possible microparticles of BaTiO3 (BT) with highest possible tetragonality via a solid state route, starting mixtures comprising BaCO3 and TiO2 were subjected to various pretreatmen...
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Article
Integrated (Ba,Sr)TiO3 Thin-Film Technology for RF and Microwave Applications
The microwave tunable capability and its related material optimization of (Ba,Sr)TiO3 thin films in the parallel-plate capacitor form is discussed in terms of the dependence of barium concentration, acceptor dopi...
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Article
Formation and Characterization of Striped Nano-Channel Structure on the Functional Oxide Thin Film
The striped nano-channel structure (about 10nm in depth) was formed on the NiO film surface by thermal annealing of the film deposited on the sapphire(0001) substrate with periodic straight atomic steps. The i...
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Article
Influence of Mis-Orientation of C-plane Sapphire Substrate on the Early Stages of MOCVD Growth of GaN Thin Films
We have studied the early stages of GaN growth to realize the growth mechanism of GaN thin films on mis-oriented sapphire substrates which affects the surface and crystal quality of GaN thin films. As the resu...
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Article
Long-Range Lattice Matching between (100)/(010) Bismuth-Layered Perovskite Structure and (101) Rutile Structure
a-/b-axis-oriented epitaxial bismuth layer-structured ferroelectric thin films were epitaxially grown on (101)-oriented oxide with rutile structure. The long-range lattice matching between the ferroelectric la...
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Article
Preparations and Characterizations of Epitaxial SrBi2Ta2O9 Thin Films
Epitaxial (001)-, (116)- and pseudo (103)-oriented Sr0.35Bi2.2Ta2O9 (SBT (0.35/2.2/2.0)) films were successfully grown on (001), (110) and (111) SrTiO3 substrates, respectively. High-resolution X-ray diffraction ...
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Chapter and Conference Paper
Microwave Absorption Study on YBa2Cu3Oy/MgO at Low Magnetic Fields
Non-resonant microwave absorption (NRMA) studies have been done for YBa2Cu3Oy film (≃800Å) fabricated on MgO (100) substrate. NRMA signals, either from film surface or interface, were separately observed below Tc...
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Chapter and Conference Paper
Observation of Early Stages of YBCO Films Grown on MgO(100) Step Substrates
We have investigated the early stages of YBa2Cu3O7-x (YBCO) films grown by sputtering onto step substrates with different terrace width and step height. It was found that the transition film thickness from two di...
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Chapter and Conference Paper
Scanning Tunneling Microscopic Studies of YBCO Films Grown by Off-axis Sputtering
The surface morphologies of YBa2Cu3O7−x thin films grown on MgO by off-axis magnetron sputtering have been observed by scanning tunneling microscopy(STM). Films grown at lower substrate temperature than 650°C sho...
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Chapter and Conference Paper
Electrochemical Growth of Bi-Sr-Ca-Cu-O Films on Ag Substrates by Sequential Deposition
Bi-Sr-Ca-Cu-O superconducting films have been grown on Ag substrates by electrochemical sequential deposition and heat treatment. All constitutional metals were deposited onto Ag substrates in the order of “Cu...
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Chapter and Conference Paper
Dependence of the Inductance Characteristics of Bi System on the External Magnetic Field
We made the experiment on the samples, each of which is with two coils wound tightly on a bar type core of the superconductor, Bi system, and examined them on self-inductance, mutual-inductance, coupling coeff...
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Chapter and Conference Paper
Effects of Water and Organic Solvents on the Bi-Pb-Sr-Ca-Cu-O System
We report the change in the superconductivity characteristics as a sample of the Bi-Pb-Sr-Ca-Cu-O system is soaked in the distilled water or in a certain organic solvent. The critical temperature shows a tende...
