Dendritic shape and EPSP conduction of cortical nonpyramidal cells

2009 ◽  
Vol 65 ◽  
pp. S84
Author(s):  
Yoshiyuki Kubota ◽  
Fuyuki Karube ◽  
Masaki Nomura ◽  
Toshio Aoyagi ◽  
Yasuo Kawaguchi
Keyword(s):  
Dendritic Shape

Effect of Heat Treatment on Microstructure Homogeneity of Zn-3Mg Alloy

2014 ◽  
Vol 493 ◽  
pp. 777-782
Author(s):  
M.S. Dambatta ◽  
Sudin Izman ◽  
Hendra Hermawan ◽  
Denni Kurniawan
Keyword(s):  
Heat Treatment ◽  
Treatment Process ◽  
Eutectic Mixture ◽  
Casting Process ◽  
Casting Method ◽  
Biodegradable Implant ◽  
Homogenization Treatment ◽  
Material Development ◽  
Uniform Microstructure ◽  
Dendritic Shape

The Zn based alloy has a high potential to be the next generation of biodegradable implant material. Development of this biomaterial involves casting process which often associated with various defects. In this study, Zn-3Mg alloy was prepared using conventional casting method and followed by homogenization treatment (370°C for 10hr) with the aim to improve the microstructure uniformity. Microscopic images show that as-cast Zn-3Mg alloy consists of segregated Zn-rich structure of star-like dendritic shape and eutectic mixture of Mg2Zn11 phase. It is observed that after the heat treatment process thissegregation has been dispersed well and results in a more uniform microstructure of Zn-3Mg alloy with low fraction of casting defects.

The Hydroforming of Micro-Square Tubes With Non-Equal Section and Dendritic Shape

2006 ◽  
Vol 505-507 ◽  
pp. 739-744
Author(s):  
Yuan Chuan Hsu ◽  
Tung Sheng Yang ◽  
J.L. Wu ◽  
Y.X. Chen
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Tube Hydroforming ◽  
Simulation Technique ◽  
Hydraulic Pressure ◽  
Micro Forming ◽  
Wall Thinning ◽  
Element Simulation ◽  
Feeding Speed ◽  
Dendritic Shape

Currently, tube hydroforming and metal micro-forming technique have emerged as the attractive and important developing tendencies in industry. Hence, in this study, the finite element simulation technique was employed to investigate the micro-hydroforming for making the micro-square tube with non-equal section and dendritic shape from square tube. Results of the current study show that the deformation of micro-square tube can be effectively analyzed by finite element simulation. The bulging and wall thinning of the tube are severely influenced not only by the internal hydraulic pressure but also by the punch axial feeding speed.

Titanium Carbide Particulate Reinforced Titanium Based Composite by In Situ Process

2007 ◽  
Vol 539-543 ◽  
pp. 1010-1015
Author(s):  
Myoung Gyun Kim ◽  
Young Jig Kim
Keyword(s):  
Titanium Carbide ◽  
Carbide Particle ◽  
Matrix Alloy ◽  
In Situ Synthesis ◽  
Liquid Alloys ◽  
Synthesis Reaction ◽  
Titanium Matrix ◽  
Particulate Reinforced ◽  
Dendritic Shape

Titanium carbide particle reinforced titanium composites were prepared by in-situ synthesis reaction between titanium and carbon liquid alloys. The phases constitute and microstructures of titanium composite have been investigated by OM, XRD, SEM, EPMA and TEM. Although it was possible to synthesize titanium carbide particle reinforced titanium composites, the morphology of in-situ titanium carbide grows into typically dendritic shape due to the compositional supercooling theory. The observation of TEM also show that interfaces between the reinforcements and the titanium matrix alloy are very clean.

UHV In-Situ Electron Microscopy of thin Film Growth

1976 ◽  
Vol 34 ◽  
pp. 442-443
Author(s):  
K. Yagi ◽  
K. Takayanagi ◽  
K. Kobayashi ◽  
G. Honjo
Keyword(s):  
Thin Film ◽  
Film Growth ◽  
High Vacuum ◽  
Dendritic Morphology ◽  
Thin Film Growth ◽  
Ultra High Vacuum ◽  
In Situ Studies ◽  
In Situ Electron Microscopy ◽  
Dendritic Shape

An ultra-high vacuum (UHV) electron microscope was constructed for special purpose of in-situ studies of thin film growth and some experimental results have already been published (1). Here, recent results are described.1. Au/graphite (nucleation and growth mode). Growths of Au in a dendritic shape at 150°C were observed on graphite. The dendritic morphology was said to be characteristic of the Au growth on UHV cleaved graphite (2). We cleaned an air cleaved surface by heating in UHV EM (10-8 torr) for 20 minutes prior to the Au deposition. The dendritic shape growth in Fig. 1, therefore, indicates that the graphite surface became clean with the present heat treatment and that the in-situ studies were done under clean conditions.

Synthesis of In-Situ Titanium Carbide Particle Reinforced Titanium Composites

2005 ◽  
Vol 475-479 ◽  
pp. 963-966 ◽  
Author(s):  
Myoung Gyun Kim ◽  
Si Young Sung ◽  
Young Jig Kim
Keyword(s):  
Titanium Carbide ◽  
Carbide Particle ◽  
Average Particle Size ◽  
In Situ Synthesis ◽  
Average Particle ◽  
Liquid Alloys ◽  
Synthesis Reaction ◽  
Computerized Image Analysis ◽  
Dendritic Shape

Titanium carbide particle reinforced titanium composites were prepared by in-situ synthesis reaction between titanium and carbon liquid alloys. The phases constitute and microstructures of titanium composite have been investigated by OM, XRD, SEM and EPMA. Although it was possible to synthesize titanium carbide particle reinforced titanium composites, the morphology of in-situ titanium carbide grows into typically dendritic shape due to the compositional supercooling theory. Using computerized image analysis, the average particle size and aspect ratio of in-situ formed titanium carbide is about 28.1 ㎛ and 1.9, respectively.

Morphological evolution of atomically thin MoS2 flakes synthesized by a chemical vapor deposition strategy

CrystEngComm ◽  
2020 ◽  
Vol 22 (24) ◽  
pp. 4174-4179 ◽  
Author(s):  
Fei Chen ◽  
Weitao Su ◽  
Shichao Zhao ◽  
Yanfei Lv ◽  
Su Ding ◽  
...  
Keyword(s):  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Morphological Evolution ◽  
Chemical Vapor ◽  
Chemical Vapor Deposition Method ◽  
Deposition Method ◽  
Dendritic Shape

The evolution of 2D MoS2 flakes from dendritic shape to hexagonal can be realized by the reaction of S and MoO3 powders at different growth temperatures via the chemical vapor deposition method.

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