Effect of Soil Conditioning on Saturated Sand Layers in EPB Shields: A Microstructural Analysis Based on CT Scanning and SEM

2022 ◽  
Author(s):  
Zhiyong Yang ◽  
Xing Yang ◽  
Yanjie Ding ◽  
Yusheng Jiang ◽  
Xiaokang Shao ◽  
...  
Keyword(s):  
Microstructural Analysis ◽  
Ct Scanning ◽  
Saturated Sand ◽  
Soil Conditioning

Microstructural Analysis of SiO2-Al2O3 Glasses

1982 ◽  
Vol 40 ◽  
pp. 562-563
Author(s):  
C. M. Jantzen ◽  
D. G. Howitt
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Microstructural Analysis ◽  
Liquid Immiscibility ◽  
Metastable Region ◽  
Transmission Electron ◽  
Liquidus Temperatures

The mullite-SiO2 liquidus has been extensively studied, and it has been shown that the flattening of the liquidus is related to the existence of a metastable region of liquid immiscibility at sub-liquidus temperatures which is detectable by transmission electron microscopy (TEM) (Fig. 1).

Applications of ultramicrotomy for materials characterization

1993 ◽  
Vol 51 ◽  
pp. 232-233
Author(s):  
R.T. Blackham ◽  
J.J. Haugh ◽  
C.W. Hughes ◽  
M.G. Burke
Keyword(s):  
Materials Science ◽  
Microstructural Analysis ◽  
Analytical Electron Microscopy ◽  
Austenitic Stainless Steels ◽  
Specimen Preparation ◽  
Preparation Technique ◽  
Thermally Induced ◽  
Radiation Induced ◽  
Characterization Of Materials

Essential to the characterization of materials using analytical electron microscopy (AEM) techniques is the specimen itself. Without suitable samples, detailed microstructural analysis is not possible. Ultramicrotomy, or diamond knife sectioning, is a well-known mechanical specimen preparation technique which has been gaining attention in the materials science area. Malis and co-workers and Glanvill have demonstrated the usefulness and applicability of this technique to the study of a wide variety of materials including Al alloys, composites, and semiconductors. Ultramicrotomed specimens have uniform thickness with relatively large electron-transparent areas which are suitable for AEM anaysis.Interface Analysis in Type 316 Austenitic Stainless Steel: STEM-EDS microanalysis of grain boundaries in austenitic stainless steels provides important information concerning the development of Cr-depleted zones which accompany M23C6 precipitation, and documentation of radiation induced segregation (RIS). Conventional methods of TEM sample preparation are suitable for the evaluation of thermally induced segregation, but neutron irradiated samples present a variety of problems in both the preparation and in the AEM analysis, in addition to the handling hazard.

1522: Utility of Preoperative 3-D Reconstruction of Pelvic Vasculature using Multi-Detector Spiral CT Scanning in Treatment Planning for Robotic Prostatectomy

2005 ◽  
Vol 173 (4S) ◽  
pp. 412-412
Author(s):  
Ashutosh Tewari ◽  
Assaad El-Hakim ◽  
Peter N. Schlegel ◽  
Mani Menon ◽  
Deirdre M. Coll
Keyword(s):  
Treatment Planning ◽  
Ct Scanning ◽  
Spiral Ct ◽  
Robotic Prostatectomy

CT Scanning Interferes With Pacemakers, Other Devices

2008 ◽  
Vol 38 (16) ◽  
pp. 5
Author(s):  
ELIZABETH MECHCATIE
Keyword(s):  
Ct Scanning

Microstructural Analysis of Si-Ti-Fe Alloy Anode Materials for Li-ion Secondary Batteries

2013 ◽  
Vol 51 (6) ◽  
pp. 429-436 ◽  
Author(s):  
Jeong Eun Chae ◽  
Jun-Mo Yang ◽  
Kyung Jin Park ◽  
Jung Ho Yoo ◽  
Yun Chang Park ◽  
...  
Keyword(s):  
Anode Materials ◽  
Microstructural Analysis ◽  
Alloy Anode ◽  
Li Ion

Morphology and Affinities of Ampelocissites Seeds (Vitaceae: Ampelopsis clade) from the Paleogene of Texas, USA

2020 ◽  
Vol 45 (3) ◽  
pp. 478-482
Author(s):  
Steven R. Manchester
Keyword(s):  
Computed Tomography ◽  
Cross Sections ◽  
Seed Coat ◽  
Ct Scanning ◽  
Seed Morphology ◽  
Early Eocene ◽  
Micro Computed Tomography ◽  
X Ray ◽  
Fossil Seeds ◽  
Fossil Genus

Abstract—The type material on which the fossil genus name Ampelocissites was established in 1929 has been reexamined with the aid of X-ray micro-computed tomography (μ-CT) scanning and compared with seeds of extant taxa to assess the relationships of these fossils within the grape family, Vitaceae. The specimens were collected from a sandstone of late Paleocene or early Eocene age. Although originally inferred by Berry to be intermediate in morphology between Ampelocissus and Vitis, the newly revealed details of seed morphology indicate that these seeds represent instead the Ampelopsis clade. Digital cross sections show that the seed coat maintains its thickness over the external surfaces, but diminishes quickly in the ventral infolds. This feature, along with the elliptical chalaza and lack of an apical groove, indicate that Ampelocissites lytlensis Berry probably represents Ampelopsis or Nekemias (rather than Ampelocissus or Vitis) and that the generic name Ampelocissites may be useful for fossil seeds with morphology consistent with the Ampelopsis clade that lack sufficient characters to specify placement within one of these extant genera.

Acupuncture treatment for scleroderma en coup de sabre of a 3-year-old girl with calcified CT scanning view on choroid.

1987 ◽  
Vol 49 (2) ◽  
pp. 270-274
Author(s):  
Manabu MAEDA ◽  
Shunji MORI ◽  
Hisashi KAIYA
Keyword(s):  
Acupuncture Treatment ◽  
Ct Scanning

An analysis of the transport properties and mechanical stability of rapidly solidified Al-Sb alloy

2015 ◽  
Vol 10 (2) ◽  
pp. 2663-2681
Author(s):  
Rizk El- Sayed ◽  
Mustafa Kamal ◽  
Abu-Bakr El-Bediwi ◽  
Qutaiba Rasheed Solaiman
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Melt Spinning ◽  
Elastic Moduli ◽  
Mechanical Stability ◽  
Microstructural Analysis ◽  
Alloy System ◽  
Antimony Content ◽  
The Stability ◽  
Rapidly Solidified

The structure of a series of AlSb alloys prepared by melt spinning have been studied in the as melt–spun ribbons  as a function of antimony content .The stability  of these structures has  been  related to that of the transport and mechanical properties of the alloy ribbons. Microstructural analysis was performed and it was found that only Al and AlSb phases formed for different composition.  The electrical, thermal and the stability of the mechanical properties are related indirectly through the influence of the antimony content. The results are interpreted in terms of the phase change occurring to alloy system. Electrical resistivity, thermal conductivity, elastic moduli and the values of microhardness are found to be more sensitive than the internal friction to the phase changes. 

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