X-ray Radiography of Fracture Flow and Matrix Imbibition

Observations of Internal Fracture in Mortar using X-Ray Microtomography

Observations of Internal Crack Growth in Mortar Using X-Ray Microtomography

Direct Observation of Deformation of Granular Materials Through X-ray Photographs

Characterisation of Anhydrous Cement Clinker by Backscattered Electron Imaging and Energy Dispersive X-Ray Analysis

Heavy Metal Pollution of Santa Catarina Island, Brazil
On Santa Catarina Island, Brazil, mangrove ecosystems although considered by present legislation as 'Areas of Permanent Preservation', have been undergoing progressive elimination for...

Radiographic Visualization in Experimental Soil Mechanics
A summary of the principles of such methods is presented, i.e. stereophotogrammetry, infrared thermography and radiography and their respective ranges of applicability are discussed. Then,...

Alkali Activation of Class C Fly Ash

Use of X-Ray Computed Tomography in the Study of Marine Sediments
X-ray computed tomography (CT scanning) is primarily a medical imaging technique. When applied to marine sediments, it responds predominately to the spatial density distribution within...

X-Ray and Visible Light Transmission as Two-Dimensional, Full-Field Moisture-Sensing Techniques: A Preliminary Comparison

Computerized Tomographic Analysis of Fluid Flow in Fractured Tuff
The purpose of this summary is to demonstrate the usefulness of X-ray computerized tomography to observe fluid flow down a fracture and rock matrix inhibition in a sample of Bandelier...

Some Considerations for Instrumentation for a Lunar-Based Solar Observatory
Outstanding problems in solar physics, observational trends and directions of instrumental development in solar astronomy are discussed briefly. These lead to the specification of observational...

Evaluation of Expansive Clay Soils in Tucson, Arizona
Research was conducted to investigate the mineralogy, engineering properties, and regional distribution of expansive clay soils in Tucson, Arizona. Data derived from X-ray diffraction...

Behaviour of Plutonium, Rare Earth Elements and Elements of the Platinum Group in Vitreous Phosphate Composites During Liquid HLW Vitrification
The methods of γ-spectrometry, γ-scanning, α-radiography, optical microscopy, x-ray phase and x-ray fluorescent analyses were used to study the behaviour of Pu, La, Ce, Nd, Sm, Ru, Rh,...

The Application of Computerized Tomography for Determining Material Properties
X-ray computerized tomography (CT) is an imaging technique that has been used by the medical community for a number of years and is well documented. However, the adaption of this technique...

Cement and Concrete Characterization by Scanning Electron Microscopy
The scanning electron microscope (SEM) is a powerful tool for the microstructural and chemical characterization of cement and concrete. Imaging techniques such as secondary electron, backscattered...

Black Holes
For many years, scientists have searched the skies for black holes; stars even more massive than white dwarves. As of yet, there have been no 100% sure sightings. Since they do not emit...

Applications of X-Ray Imaging in Soil Mechanics
This paper presents a summary of the principles of methods to observe the detailed patterns of local deformation within a soil mass: stereophotogrammetry, polaroscopy, infrared tomography...

Water Transport in Limestone by X-Ray CAT Scanning
The transport of water through the interior of Salem limestone test briquettes can be dynamically monitored by computer aided tomography (commonly called CAT scanning in medical diagnostics)....

XLA -- The X-ray Large Array
The Naval Research Laboratory, Stanford University, and The University of Washington have proposed a large (100 square meters) array of X-ray detectors, called XLA, to be built at the...

 

 

 

 

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