PIXE ANALYSIS OF CHINESE CHICKEN-BLOOD STONE

1999 ◽  
Vol 09 (03n04) ◽  
pp. 423-430 ◽  
Author(s):  
E. K. LIN ◽  
C. W. WANG ◽  
Y. C. YU ◽  
T. Y. LIU ◽  
H. S. CHENG ◽  
...  
Keyword(s):  
Experimental Result ◽  
Chemical Compositions ◽  
Pixe Analysis ◽  
X Ray ◽  
Result Show ◽  
Pixe Method ◽  
Chicken Blood

This paper reports the chemical compositions of chicken-blood stone Ji Xue Shi measured by Proton Induced X-ray Emission (PIXE). The experimental result show that for the red portion of chicken-blood stone, the concentration of Hg is as high as 20 wt%, and the concentration of S can be above 10 wt%. For the non-red portion the main chemical compositions are Al 2 O 3 and SiO 2. The obtained chemical compositions are close to those of kaolinite for Balin chicken-blood stone, and of pyrophyllite for Changhua chicken-blood stone, respectively. So far many Changhua chicken-blood stones and Balin chicken-blood stones were found in China, the PIXE method can be used to explore the provenance of available chicken-blood stones.

PIXE ANALYSIS OF TRACE ELEMENTS IN CLAM SHELLS MARKED WITH IRON RUSTING

1996 ◽  
Vol 06 (03n04) ◽  
pp. 517-522 ◽  
Author(s):  
YOSHINORI KOSHIKAWA ◽  
NOBUAKI ARAI ◽  
WATARU SAKAMOTO ◽  
KOJI YOSHIDA
Keyword(s):  
Trace Elements ◽  
Trace Element ◽  
Intensity Ratio ◽  
Ruditapes Philippinarum ◽  
Pixe Analysis ◽  
X Ray ◽  
Elemental Concentrations ◽  
Element Concentrations ◽  
Pixe Method

Trace element concentrations in short necked clam Ruditapes philippinarum marked shells with iron rusting were determined by particle induced X-ray emission (PIXE) method. Element such as Ca, Mn, Fe, Zn, Sr, and Br were detected in the shells. The Fe/Ca X-ray intensity ratio decreased exponentially on the day after marking. It was concluded that the higher Fe concentration on marked clams was caused by attached iron rusting. The concentrations of Fe, Br, and Sr differed among the 3 stations (Kamaya, Shigaki, and Iwatani), suggesting that elemental concentrations may be related to the growth of clams.

ELEMENTAL ANALYSIS OF MOUSE HAIR BY PIXE METHOD

1994 ◽  
Vol 04 (01) ◽  
pp. 19-28 ◽  
Author(s):  
ITSURO TAMANOI ◽  
KUNIO OOHASHI ◽  
SHINJI MATSUMOTO ◽  
ZENJI MURAKOSHI ◽  
TUNEYA MATSUMOTO
Keyword(s):  
Elemental Analysis ◽  
Mus Musculus ◽  
Strain Difference ◽  
Pixe Analysis ◽  
X Ray ◽  
Head Hair ◽  
Elemental Contents ◽  
Pixe Method

Constitutional elements of head hair of mouse (Mus musculus) were investigated by Particle-Induced X-ray Emission (PIXE) analysis. The high peaks of S, K and Ca, and the low peaks of several other elements were observed in PIXE spectra of all the specimens from the used strains. The result clearly indicates that the ratios of these elemental contents are different among the coat colors of mice. Further, we observed strain difference even in the same color.

scholarly journals On PIXE Analysis of Medical Samples: Thalassemia & Wilson

2017 ◽  
pp. 5105-5110
Author(s):  
Amir Pishkoo
Keyword(s):  
Wilson’S Disease ◽  
Wilson's Disease ◽  
Pixe Analysis ◽  
X Ray ◽  
Six Elements ◽  
Pixe Method

The contents of six elements (Cl, K, Ca, Fe, Cu, Zn) for medical samples of 30 patients (15 with wilson's disease and 15 with Thalassemia's disease) were determined by proton induced X-ray emission (PIXE) method. In analysis of these samples, abnormal contents of Cu for wilson's disease and of Fe for Thalassemia's disease were observed which shows that for these cases the situation of patient's illness is very serious.

AN ATTEMPT TO DETERMINE POSITIONS OF AEROSOL SOURCE BY THE PIXE ANALYSIS

1999 ◽  
Vol 09 (01n02) ◽  
pp. 51-56 ◽  
Author(s):  
S. Matsuyama ◽  
Y. Tokai ◽  
K. Ishii ◽  
H. Yamazaki ◽  
K. Gotoh ◽  
...  
Keyword(s):  
Meteorological Data ◽  
Pixe Analysis ◽  
X Ray ◽  
Elemental Concentrations ◽  
Wind Velocities ◽  
Aerosol Sources ◽  
People Movement ◽  
The Many ◽  
Aerosol Source ◽  
Pixe Method

Aerosols were continuously collected for 2 or 3 hours during the periods of 4-27 August 1997 and of 23 March-2 April 1998 at a suburb of Sendai City (east 10 km from Sendai), and meteorological data such as wind directions, wind velocities, etc were measured at the same time. The collected aerosol samples were analyzed by the particle-induced X-ray emission (PIXE) method. Fourteen elements (S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, Hg and Pb) were contained in these samples. The elemental concentrations increased in the daytime and decreased at night. It coincided with the time variation of people movement. The concentrations of Mn, Fe, Zn and Pb elements depended strongly on the direction of wind and their distributions for wind directions reflected to the position of aerosol sources. This result suggests that the position of aerosol source can be determined by measuring aerosols and wind directions at the many positions.

Fabrication of Bioactive HA/Ti Composite Coating by Laser Cladding

2007 ◽  
Vol 330-332 ◽  
pp. 569-572 ◽  
Author(s):  
Sen Yang ◽  
Hau Chung Man
Keyword(s):  
Composite Coating ◽  
Laser Cladding ◽  
Biomedical Applications ◽  
Bone Growth ◽  
Niti Alloy ◽  
Experimental Result ◽  
Chemical Compositions ◽  
X Ray ◽  
Metallurgical Bonding

To accelerate the bone growth around a metallic implant and to achieve the mechanical characteristics needed for biomedical applications, a HA/Ti composite coating was produced on NiTi alloy substrate by laser cladding. The chemical compositions, microstructures and surface morphology of the cladded layer were analyzed using energy dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), and X-ray diffractometry (XRD). The experimental results showed that an excellent metallurgical bonding between the coating and the substrate was obtained. Owing to decomposition of HA under irradiation of high power laser, the microstructures in bioceramics coating were mainly composed of CaO, CaTiO3, Ti4P3, and HA phases. In vitro experimental result showed that HA/Ti composite coating made the bioactivity of NiTi alloy improve remarkably, which would promote the bone growth and could restrain Ni ion releasing from NiTi alloy.

CHANGES OF BLOOD PLASMA ELEMENT CONTENTS IN X-RAY IRRADIATED MICE BY PIXE ANALYSIS

1995 ◽  
Vol 05 (02n03) ◽  
pp. 85-95 ◽  
Author(s):  
ITSURO TAMANOI ◽  
AKEMI NAKAMURA ◽  
KIYOFUSA HOSHIKAWA ◽  
MUTSUMI KACHI ◽  
BUNSHIRO GOTO ◽  
...  
Keyword(s):  
Trace Elements ◽  
Blood Plasma ◽  
Whole Body ◽  
Pixe Analysis ◽  
X Ray ◽  
Dead Mouse ◽  
Small Rise ◽  
Quantitative Changes ◽  
Pixe Method ◽  
In Blood Plasma

The quantitative changes of elements in blood plasma were observed with the passage of time after X-ray whole body irradiation with 12 Gy on C57BL/6J mice by PIXE method. From 4 days after irradiation, dead mouse was found and all mice died by 8 days. Hematocrit (Ht) values indicated a decrease from the 1st day, but on days 3 and 4 there was a small rise. Finally the values became 64 % of that of non-irradiated control on day 7, it was just before death. By analysis with PIXE method, 15 elements were observable in blood plasma of control mice. The elements such as P, S, Cl, K, Ca and Cr were abundant and Fe and Br followed. As trace elements, the peaks of Zn, Cu and Ni were clearly observed. After irradiation, K and Ca decreased on day 1st, afterwards increased gradually. On the contrary, the elements, S, Cl, were rather stable. While Fe decreased from 1st day, Cu increased from the day 2. Zn and Ni showed intensely down and rise in amount, and decreased on day 7. The results of possible measurement of the changes in amount of these elements of blood plasma suggest PIXE method is an easy and useful way for diagnosis.

PIXE analysis of concrete composition in a research reactor facility under decommissioning

2018 ◽  
Vol 28 (03n04) ◽  
pp. 77-84
Author(s):  
N. Hagura ◽  
K. Kashimata ◽  
K. Mochiki ◽  
Y. Oguri
Keyword(s):  
Nuclear Reactor ◽  
Research Reactor ◽  
Heavy Elements ◽  
Reactor Facility ◽  
Concrete Composition ◽  
Pixe Analysis ◽  
X Ray ◽  
Physical Volume ◽  
Residual Radioactivity ◽  
Pixe Method

This study conducted an evaluation of elemental composition of concrete in an old nuclear reactor facility using the particle-induced X-ray emission (PIXE) technique. Given that the physical volume of the concrete is huge, easy, and quick analysis of many samples via the PIXE method can expedite the decommissioning work. The result of this study confirmed that it is possible to use the PIXE method for detecting light and medium-heavy elements (from Na to Fe) in concrete without the complicated chemical treatment. Some of these elements contain parent nuclides of Na-24, Al-28, and Fe-55, which are dominant components with residual radioactivity for a period of up to 10 years after facility shutdown.

TRACE ELEMENT ANALYSIS IN ANTS COLLECTED IN JAPAN, FINLAND AND SWEDEN

1992 ◽  
Vol 02 (03) ◽  
pp. 405-411 ◽  
Author(s):  
K. KITAO
Keyword(s):  
Trace Elements ◽  
Trace Element ◽  
Trace Element Analysis ◽  
Reasonable Accuracy ◽  
Element Analysis ◽  
Pixe Analysis ◽  
X Ray ◽  
Minor Elements ◽  
Analytical Results ◽  
Pixe Method

Particle induced x-ray emission has been used to determine the concentration of trace elements in ants (Formicidae). Scanning PIXE analysis was also used to determine the distribution of these elements. Samples of ants were collected from gardens, buildings or from the roadway in Japan, Finland and Sweden. The only pre-treatments were dusting and washing. In each run of experiments we used only one individual ant and have obtained the analytical results of a reasonable accuracy. We have detected chemical minor elements, i.e., Mn, Fe, Cu, Zn, Rb, Br and Sr. The PIXE, and scanning PIXE method proved to be useful and sensitive enough to measure trace elements in such small insects as ants.

XRF and PIXE Analysis of light and Dark Adapted Ocular Tissue

1982 ◽  
Vol 40 ◽  
pp. 190-191
Author(s):  
B. J. Panessa ◽  
H. W. Kraner ◽  
J. B. Warren ◽  
K. W. Jones
Keyword(s):  
Trace Metals ◽  
Pigment Epithelium ◽  
Nerve Impulse ◽  
Light Response ◽  
Ocular Tissue ◽  
Emission Spectrometry ◽  
Retinol Dehydrogenase ◽  
Pixe Analysis ◽  
X Ray ◽  
Optimal Function

During photoexcitation the retina requires specific electrolytes and trace metals for optimal function (Na, Mg, Cl, K, Ca, S, P, Cu and Zn). According to Hagins (1981), photoexcitation and generation of a nerve impulse involves the movement of Ca from the rhodopsin-ladened membranes of the rod outer segment (ROS) to the plasmalemma, which in turn decreases the in-flow of Na into the photoreceptor, resulting in hyperpolarization. In toad isolated retinas, the presence of Ba has been found to increase the amplitude and prolong the delay of the light response (Brown and Flaming, 1978). Trace metals such as Cu, Zn and Se are essential for the activity of the metalloenzymes of the retina and retina pigment epithelium (RPE) (i.e. carbonic anhydrase, retinol dehydrogenase, tyrosinase, glutathione peroxidase, superoxide dismutase...). Therefore the content and fluctuations of these elements in the retina and choroid are of fundamental importance for the maintenance of vision. This paper presents elemental data from light and dark adapted frog ocular tissues examined by electron beam induced x-ray microanalysis, x-ray fluorescence spectrometry (XRF) and proton induced x-ray emission spectrometry (PIXE).

Identification of Essential Proteins in Yeast Using Mean Weighted Average and Recursive Feature Elimination

2019 ◽  
Vol 12 (1) ◽  
pp. 5-10 ◽  
Author(s):  
Sivagnanam Rajamanickam Mani Sekhar ◽  
Siddesh Gaddadevara Matt ◽  
Sunilkumar S. Manvi ◽  
Srinivasa Krishnarajanagar Gopalalyengar
Keyword(s):  
Drug Design ◽  
Weighted Average ◽  
Living Organism ◽  
Experimental Result ◽  
Recursive Feature Elimination ◽  
Protein Interaction Data ◽  
Essential Proteins ◽  
Protein Protein Interaction ◽  
Result Show ◽  
Better Than

Background: Essential proteins are significant for drug design, cell development, and for living organism survival. A different method has been developed to predict essential proteins by using topological feature, and biological features. Objective: Still it is a challenging task to predict essential proteins effectively and timely, as the availability of protein protein interaction data depends on network correctness. Methods: In the proposed solution, two approaches Mean Weighted Average and Recursive Feature Elimination is been used to predict essential proteins and compared to select the best one. In Mean Weighted Average consecutive slot data to be taken into aggregated count, to get the nearest value which considered as prescription for the best proteins for the slot, where as in Recursive Feature Elimination method whole data is spilt into different slots and essential protein for each slot is determined. Results: The result shows that the accuracy using Recursive Feature Elimination is at-least nine percentages superior when compared to Mean Weighted Average and Betweenness centrality. Conclusion: Essential proteins are made of genes which are essential for living being survival and drug design. Different approaches have been proposed to anticipate essential proteins using either experimental or computation methods. The experimental result show that the proposed work performs better than other approaches.

Sign in / Sign up

Export Citation Format

Share Document