The role of 3-D rotational x-ray imaging in spinal trauma

Injury ◽  
2005 ◽  
Vol 36 (2) ◽  
pp. S98-S103 ◽  
Author(s):  
Jorrit-Jan Verlaan ◽  
Everine B van de Kraats ◽  
Wouter JA Dhert ◽  
F Cumhur Oner
Keyword(s):  
Spinal Trauma ◽  
X Ray ◽  
X Ray Imaging

Ionic homeostasis and subcellular element compartmentation

1990 ◽  
Vol 48 (2) ◽  
pp. 150-151
Author(s):  
Ann LeFurgey ◽  
Peter Ingram ◽  
J.J. Blum ◽  
M.C. Carney ◽  
L.A. Hawkey ◽  
...  
Keyword(s):  
Leishmania Major ◽  
Ionic Homeostasis ◽  
X Ray ◽  
Functional Studies ◽  
Cell Compartments ◽  
X Ray Imaging ◽  
Resolution Electron ◽  
Multiple Cell ◽  
Role Of Zn

Subcellular compartments commonly identified and analyzed by high resolution electron probe x-ray microanalysis (EPXMA) include mitochondria, cytoplasm and endoplasmic or sarcoplasmic reticulum. These organelles and cell regions are of primary importance in regulation of cell ionic homeostasis. Correlative structural-functional studies, based on the static probe method of EPXMA combined with biochemical and electrophysiological techniques, have focused on the role of these organelles, for example, in maintaining cell calcium homeostasis or in control of excitation-contraction coupling. New methods of real time quantitative x-ray imaging permit simultaneous examination of multiple cell compartments, especially those areas for which both membrane transport properties and element content are less well defined, e.g. nuclei including euchromatin and heterochromatin, lysosomes, mucous granules, storage vacuoles, microvilli. Investigations currently in progress have examined the role of Zn-containing polyphosphate vacuoles in the metabolism of Leishmania major, the distribution of Na, K, S and other elements during anoxia in kidney cell nuclel and lysosomes; the content and distribution of S and Ca in mucous granules of cystic fibrosis (CF) nasal epithelia; the uptake of cationic probes by mltochondria in cultured heart ceils; and the junctional sarcoplasmic retlculum (JSR) in frog skeletal muscle.

Role of X-Ray Imaging in the Development of Drugs

1999 ◽  
Vol 33 (2) ◽  
pp. 635-640
Author(s):  
Sanjay Saini ◽  
Raju Sharma
Keyword(s):  
X Ray ◽  
X Ray Imaging

scholarly journals The role of synthesis pathway on the microstructural characteristics of sulfur-carbon composites: X-ray imaging and electrochemistry in lithium battery

2020 ◽  
Vol 472 ◽  
pp. 228424 ◽  
Author(s):  
Daniele Di Lecce ◽  
Vittorio Marangon ◽  
Wenjia Du ◽  
Dan J.L. Brett ◽  
Paul R. Shearing ◽  
...  
Keyword(s):  
Lithium Battery ◽  
Carbon Composites ◽  
Microstructural Characteristics ◽  
X Ray ◽  
X Ray Imaging

scholarly journals Water migration in wood during imbibition assessed by X-ray imaging

2020 ◽  
Vol 172 ◽  
pp. 14007
Author(s):  
Benoît Martin ◽  
Julien Colin ◽  
Pin Lu ◽  
Mahamadou Mounkaila ◽  
Joel Casalinho ◽  
...  
Keyword(s):  
Computational Models ◽  
Climatic Conditions ◽  
Water Migration ◽  
Porous Network ◽  
Drying Time ◽  
X Ray ◽  
X Ray Imaging ◽  
Rigorous Treatment ◽  
Numerical Tools

In the wooden construction, structural elements are particularly exposed to external climatic conditions during the construction phase. To ensure their durability over their expected lifespan, the required drying time have to be known after a rain shower and before closing the timber structures. This question, involving coupled heat and mass transfer, can be investigated through numerical tools. The aim of this work is to provide experimental data through X-ray imaging to validate the prediction potential of computational models simulating transfer in porous media. Two complementary methods were developed to access the water migration in Norway spruce. The first one allowed to quantitatively measure spatial distribution of moisture content over time. It is based on a rigorous treatment of the X-ray beam attenuation. The second method, using a high-resolution 3D reconstruction, highlighted the role of wood rays on liquid migration within the porous network.

Relative Impact of Kernel Thickness and Moisture Content on Rice Fissuring during Drying

2018 ◽  
Vol 34 (1) ◽  
pp. 239-246 ◽  
Author(s):  
Zephania R. Odek ◽  
Terry J. Siebenmorgen ◽  
Andronikos Mauromoustakos
Keyword(s):  
Moisture Content ◽  
Drying Characteristics ◽  
X Ray ◽  
X Ray Imaging ◽  
Rough Rice ◽  
Rice Drying ◽  
Milling Yield ◽  
Moisture Desorption

Abstract.Individual kernel thickness and moisture content (MC) vary within rice panicles. These variations affect the drying characteristics of rice kernels and consequently, the milling yield. This study utilized an X-ray system augmented with an in-situ rice drying apparatus that enabled fissure detection in rough rice kernels during drying and tempering. Rough rice kernels of two long-grain cultivars (Roy J and CL XL745), each at two MC levels (20% and 16%, w.b.), were fractionated into three thickness fractions (thin <1.98 mm, medium 1.98 - 2.03 mm, and thick >2.03 mm). Kernels from each of the 12 sub-lots were dried and tempered under controlled air conditions. Fissured kernel percentages (FKP) were determined from X-ray images taken before, during, and after drying and tempering. Kernel thickness and MC both affected moisture desorption fissuring. Generally, as kernel thickness increased, the FKP increased for high-MC lots. In regards to MC, high-MC lots were more prone to fissuring than the low-MC lots. Overall, these findings highlight the role of kernel properties on fissuring during drying. Keywords: Kernel fissuring, Kernel thickness, Moisture content, Rice drying, X-ray imaging.

Lead-phase determination and demonstration of contaminated soil remediation mechanism by scanning electron microscopy and characteristic x-ray imaging

1996 ◽  
Vol 54 ◽  
pp. 514-515
Author(s):  
T. B. Vander Wood
Keyword(s):  
Contaminated Soils ◽  
Solution Chemistry ◽  
Lead Ion ◽  
X Ray ◽  
Phosphate Ion ◽  
Remediation Strategies ◽  
X Ray Imaging ◽  
Similar Materials ◽  
Lead Phase

The utility of microscopy and microanalysis in the study of contaminated atmospheres is well established. The particulate nature of soils suggests that these methods would be equally useful in the study of contaminated soils and similar materials; however, the focus on bulk contaminant concentrations, solution chemistry and leachability has obscured the role of microanalysis in elucidating the chemistry of contamination and in guiding remediation methods.A case in point is the study of lead contaminated soils and possible remediation strategies. Ma, et al, recognized that reaction of lead with hydroxyapatite provided a possible remediation method for lead contaminated soils by precipitation of hydroxypyromorphite [Pb10(PO4)6(OH)2], proposing that the mechanism of lead immobilization in contaminated soils is congruent alteration, that is, dissolution of hydroxyapatite [Ca10(PO4)6(OH)2]to give phosphate ion in solution, followed by precipitation of dissolved lead ion as hydroxypyromorphite.

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