Search Results - "Kruger, R.A."

A characterisation of the surface properties of an ultra fine fly ash (UFFA) used in the polymer industry by Potgieter-Vermaak, S.S., Potgieter, J.H., Kruger, R.A., Spolnik, Z., van Grieken, R.

“…Fly ash is the residue from the combustion of pulverised coal in thermal power stations. It consists of a variety of particle sizes of hollow silica-alumina…”
Get full text

Fly ash beneficiation in South Africa: creating new opportunities in the market-place by Kruger, Richard A.

“…The ways in which air classification, electrostatic recovery and density separation can be used to obtain specific fractions of fly ash with different…”
Get full text

Thermoacoustic computed tomography of the breast at 434 MHz by Kruger, R.A., Kiser, W.L., Reinecke, D.R., Kruger, G.A., Eisenhart, R.L.

“…The authors have constructed a thermoacoustic tomography (TACT) imaging device for mapping the three-dimensional absorption of 434 MHz radiowaves in the human…”
Get full text

Scatter estimation for a digital radiographic system using convolution filtering by Love, L A, Kruger, R A

“…The use of a convolution-filtering method to estimate the scatter distribution in images acquired with a digital subtraction angiography (DSA) imaging system…”
Get more information

Thermoacoustic CT by Kruger, R.A., Kiser, W.L., Miller, K.D., Reynolds, H.E., Reinecke, D.R., Kruger, G.A., Hofacker, P.J.

“…We have developed instrumentation for measuring the tissue-absorption properties of radio waves in the human body using thermoacoustic interactions. The…”
Get full text

Reconstruction of blood vessels from X-ray substraction projections by Kruger, R.A.

“…The author shows that it is possible to apply a priori knowledge in X-ray image processing to isolate particular anatomy, provided that anatomy is…”
Get full text

Intravenous digital subtraction: a summary of recent developments by Riederer, S J, Kruger, R A

“…Recent developments in digital subtraction angiographic imaging are discussed. The technical characteristics of several alternate subtraction methods are…”
Get more information

Convolutional reconstruction algorithm for fan beam concave and convex circular detectors by Hu, H., Gullberg, G.T., Kruger, R.A.

“…A modified convolution-backprojection reconstruction algorithm for a circular detector with an arbitrary radius of curvature has been derived for fan-beam…”
Get full text

Blood flow determination using recursive processing: a digital radiographic method by Kruger, R A, Bateman, W, Liu, P Y, Nelson, J A

“…Temporal filtration of fluoroscopic video sequences is being used as an alternative to pulsed digital subtraction angiography. Using the same image processing…”
Get more information

Tomosynthesis applied to digital subtraction angiography by Kruger, R A, Sedaghati, M, Roy, D G, Liu, P, Nelson, J A, Kubal, W, Del Rio, P

“…This extension of our previous work on tomographic digital subtraction angiography (DSA) describes the theory of tomosynthetic DSA image reconstruction…”
Get more information

Time-of-flight Imaging Of A Simple Breast Phantom by Hebden, J.C., Kruger, R.A.

Get full text

Scanning Methods For Time-of-flight Optical Imaging by Kruger, R.A., Hebden, J.C.

Get full text

Real-time digital angiocardiography using a temporal high-pass filter by Hardin, C W, Kruger, R A, Anderson, F L, Bray, B E, Nelson, J A

“…A temporal high-pass filtration technique for digital subtraction angiocardiography was studied, using real-time digital studies performed simultaneously with…”
Get more information

Digital angiography: matched filtration versus mask-mode subtraction by Liu, P, Kruger, R A, Nelson, J A, Miller, F J, Osborn, A G, Wojtowycz, M

“…Matched filtration was compared to mask-mode subtraction in patients undergoing routine intravenous digital subtraction angiography. Images were analyzed for…”
Get more information

Tomographic Digital Subtraction Angiography by Kruger, R.A., Roy, D.N. Ghosh, Liu, P-Y, Yih, B., Power, R.

Get full text