نتایج جستجو برای: mo rh target filter mammograms

تعداد نتایج: 562073  

Journal: :Journal of medical entomology 2010
Tomas Erban Vaclav Stejskal Radek Aulicky Iva Krizkova-Kudlikova Marta Nesvorna Jan Hubert

The aim of the study was to establish a model of the environmental fate of German cockroach (Blattella germanica L.) allergens Bla g 1 and Bla g 2 in feces under controlled and field conditions. Temporal decline (3, 6, and 9 mo) of allergens Bla g 1 and Bla g 2 in the feces protected from cleaning was measured under laboratory and experimental household conditions. The influence of environmenta...

2007
O. L. Pechenaya C. J. Chiara D. G. Sarantites W. Reviol R. J. Charity M. P. Carpenter R. V. F. Janssens T. Lauritsen C. J. Lister D. Seweryniak S. Zhu L.-L. Andersson E. K. Johansson D. Rudolph

O. L. Pechenaya,1 C. J. Chiara,2 D. G. Sarantites,2 W. Reviol,2 R. J. Charity,2 M. P. Carpenter,3 R. V. F. Janssens,3 T. Lauritsen,3 C. J. Lister,3 D. Seweryniak,3 S. Zhu,3 L.-L. Andersson,4 E. K. Johansson,4 and D. Rudolph4 Department of Physics, Washington University, St. Louis, MO 63130 Department of Chemistry, Washington University, St. Louis, MO 63130 Physics Division, Argonne National Lab...

2015
Yoshinao Nakagawa Riku Tamura Masazumi Tamura Keiichi Tomishige

Hydrogenation of cyclohexanecarboxamide to aminomethylcyclohexane was conducted with silica-supported bimetallic catalysts composed of noble metal and group 6-7 elements. The combination of rhodium and molybdenum with molar ratio of 1:1 showed the highest activity. The effect of addition of various metal oxides was investigated on the catalysis of Rh-MoO x /SiO2, and the addition of CeO2 much i...

2000
Mandeep Singh Joseph J.M. Braat

We show that the theoretical reflectivities of multilayered Mo/Be and Mo/Si extreme ultraviolet (EUV) mirrors tuned for the 11-14 nm spectral region can be enhanced significantly by incorporating additional materials within the stack. The reflectivity performance of these quarter-wave multilayers can be enhanced further by global optimization procedures by which the layer thicknesses are varied...

2010
Rafael García‐Mollá Rafael Linares Rafael Ayala

This paper deals with the analysis of the behavior of objective image quality parameters for the new GE Senographe Essential FFDM system, in particular its dependence with beam quality. The detector consists of an indirect conversion a-Si flat panel coupled to a CsI:Tl scintillator. The system under study has gone through a series of relevant modifications in flat panel with respect to the prev...

Journal: :Intelligent Automation and Soft Computing 2023

Breast Cancer (BC) is considered the most commonly scrutinized cancer in women worldwide, affecting one eight a lifetime. Mammography screening becomes such standard method that helpful identifying suspicious masses’ malignancy of BC at an initial level. However, prior identification masses mammograms was still challenging for extremely dense and breast categories needs effective automatic mech...

Journal: :iranian journal of radiology 0
lida gholamkar department of medical radiation engineering, science and research branch, islamic azad university, tehran, iran ali asghar mowlavi physics department, hakim sabzevari university, sabzevar, iran; international center for theoretical physics (ictp), associate federation scheme, medical physics field, trieste, italy; physics department, hakim sabzevari university, sabzevar, iran. tel: +98-5144012521 mahdi sadeghi radiation application research school, nuclear science and technology research institute, tehran, iran mitra athari department of medical radiation engineering, science and research branch, islamic azad university, tehran, iran

conclusion by comparing the results, we saw that w/rh anode/filter combination is the best choice in breast mammography imaging because of the lowest delivered dose in comparison with w/ag and rh/al. moreover, breast thickness and g value have significant effects on mgd. objectives the aim of this study was to determine the average absorbed dose of x-ray radiation in the glandular tissue of the...

Journal: :Journal of The Japan Petroleum Institute 1986

2012
B. Senthilkumar G. Umamaheswari

In medical image processing, noise removal is the challenging task. Removal of noise using the existing methods like Median Filter (MF), Center Weighted Median Filter (CWMF), Rank Condition Rank Selection Filter (RCRSF) and SMF Selective Median Filter (SMF) provides satisfactory results. In this paper, we have made improvements in SMF by providing the adaptive thresholding concept and called as...

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