Results 1 to 10 of about 4,475 (78)

Using the Dual Energy Gamma-Ray Transmission Technique to Measure Soil Bulk Density and Water Content of Central Southwestern Nigerian Soils

Journal of Environmental Protection, 2012
In this work, a radiological technique which simultaneously measures soil bulk density and water contents accurately and quickly in a non-destructive manner at different depths of the soil profile of the major soil series of Central Southwestern Nigeria is developed. Undisturbed samples from Iwo, Ondo, Egbeda, Itagunmodi, Okemessi, Mamu, Origo and Jago
O. O. Adejumo, F. A. Balogun
openaire   +4 more sources

The use of artificial intelligence and time characteristics in the optimization of the structure of the volumetric percentage detection system independent of the scale value inside the pipe

Applied Artificial Intelligence, 2023
When scale builds up in a transmission pipeline, it narrows the pipe’s interior and causes losses in both power and efficiency. A noninvasive instrument based on gamma-ray attenuation is one of the most reliable diagnostic procedures for determining ...
Tzu-Chia Chen, Abdullah M. Iliyasu, Seyed Mehdi Alizadeh, Ahmed S. Salama, Ehsan Eftekhari-Zadeh, Kaoru Hirota   +5 more
doaj   +1 more source

Examination for Practical Use in Dual Energy Gamma-ray Transmission Techniques. Application to Grading of Gold Alloys.

RADIOISOTOPES, 1995
For practical use of dual energy gamma-ray transmission techniques in various fields, necessary conditions have been examined experimentally.The study revealed the necessary conditions shown in the following : (1) the shape and size of the collimator aperture for a gamma-ray beam must be changed according to those of a sample to be measured, (2) a ...
Iwao UMEDA, Toshio MUTO, Raita KITSUTAKA, Takuo NONOMURA   +3 more
openaire   +3 more sources

A Dual Energy Gamma-Ray Transmission Technique for Gold Alloy Identification.

RADIOISOTOPES, 1991
An application of the dual energy gamma-ray transmission techniques to gold alloy identification is presented. The measurement by dual energy gamma-ray transmission is independent of thickness and density of a sample. Due to this advantage, golden accessories such as necklaces, earrings and rings can be assayed inspite of their various thicknesses and ...
SUMI, Tetsuo, SHINGU, Hiroyasu, IWASE, Hirotoshi   +2 more
openaire   +2 more sources

Examination for Analysis of Minerals by Means of Dual Energy Gamma-ray Transmission Techniques.

RADIOISOTOPES, 1996
For application of dual energy gamma-ray transmission techniques to practical mineral grade analysis, some problems including selection of gamma-ray energies, influence of sample thickness and main causes of errors in measurement have been examined.The relationships between the R-values (the ratio of mass attenuation coefficients for low and high ...
UMEDA, Iwao, MUTO, Toshio, KITSUTAKA, Raita   +2 more
openaire   +2 more sources

WATER CONTENT AND BULK DENSITY CHANGES IN A SOIL PEDON MEASURED WITH DUAL ENERGY GAMMA-RAY TRANSMISSION [PDF]

Canadian Journal of Soil Science, 1974
Water contents and bulk densities were measured in a soil pedon with a gamma-ray transmission technique utilizing 137Cs and 241Am. By alternating the sources for each scan down the soil profile, both bulk density and water content were determined in 1-cm increments in the top 10 cm of the pedon.
openaire   +1 more source

Fundamental characteristics and some applications of dual energy gamma-ray transmission techniques.

RADIOISOTOPES, 1989
SUMI, Tetsuo, INAGAKI, Takayuki, IWASE, Hirotoshi   +2 more
openaire   +2 more sources

Dual-Confinement Strategy Enables Highly Efficient Oxygen Reduction with Fe-N₅ Electrocatalysts. [PDF]

Research (Wash D C)
Li S, Liu J, Liu Z, Yang C, Li J, Lin Z, Gao L.   +6 more
europepmc   +1 more source

Structure-Function Integration in 2D Hybrid Perovskite for Fast Neutron and Gamma Ray Discrimination. [PDF]

Adv Sci (Weinh)
Wang Y, Xu L, Liu C, Liang L, Zhang B, Qin Z, Lian L, Zheng W, Lei Y, Hu Q, Song S, Mi C, Wang T, Xu Y, Zha G, Jie W.   +15 more
europepmc   +1 more source

Gamma-Ray and Thermal Neutron Shielding of Fe-Based Bilayer Composites with a Boron-Enriched Matrix and Tungsten Surface Coatings: Lead Benchmarks Included. [PDF]

Materials (Basel)
Chai J, Kang K, Chi HS, Kang C, Lee S, Kim JK.   +5 more
europepmc   +1 more source