Results 271 to 280 of about 789,662 (314)
Some of the next articles are maybe not open access.
Many Body Calculations of Photoionization Cross Sections
Physica Scripta, 1987A review is given of many-body calculations of photoionization cross sections, and various theoretical techniques are compared. Experimental results are compared with calculations for both closed-shell and open-shell atoms. Particular attention is given to resonance strength. Multiple excitations due to photon absorption are also discussed.
openaire +1 more source
Application of a radiotherapy simulator for imaging of body cross sections
The British Journal of Radiology, 1977A map of cross-sectional tissue structure and associated linear attenuation coefficients within the body contour makes possible accurate treatment planning for radiation therapy. The high cost of transverse body section computerized tomographic (CT) scanners now available commercially will probably limit their application for this purpose to ...
S. Webb +3 more
openaire +2 more sources
A cross-sectional ultrasound imaging for measuring body composition
2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2007We have developed a measuring system to visualize a complete cross-sectional image of the human extremity using ultrasonography. This system uses several ultrasound probes, and these probes measure fragmentary graphical images of one cross-sectional plane which are then transformed into a complete cross-sectional image. The developed system is superior
Kiyotaka, Fukumoto +4 more
openaire +2 more sources
Scattering Cross Sections of Impedance-Matched Bodies
IEEE Transactions on Antennas and Propagation, 2015zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +3 more sources
There are few studies comparing adolescents’ body satisfaction concerns cross-culturally despite evidence suggesting that adolescents with different ethnic origin vary in their attitudes toward their bodies.
Carolina Lunde, Ann Frisen
exaly +1 more source
Modified Slender Body Theory for a Structure of Variable Cross-Section
SIAM Journal on Applied Mathematics, 2001The authors present a general methodology for computing the hydrodynamic force and moment distribution acting on a slender three-dimensional structure with a variable, generally time-dependent circular cross-section (including sharp discontinuities).
A. R. Galper, Touvia Miloh
openaire +2 more sources
Many-body calculation of photoionization cross sections in CO
Physical Review A, 1994Total and partial photoionization cross sections are computed for CO at the fixed equilibrium internuclear separation. Finite basis sets were used, with no explicit recourse to continuum orbitals, and there is no need for input of empirical data such as the ionization threshold.
openaire +2 more sources
Radar cross section of arbitrarily shaped bodies of revolution
Proceedings of the IEEE, 1989The radar cross section (RCS) of an arbitrarily shaped, homogeneous dielectric body of revolution (BOR) is evaluated by the surface integral equation (SIE) formulation and the method of moments. Method accuracy is verified by the good agreement with the exact solutions for the RCS of a dielectric sphere.
openaire +1 more source
THE CORRELATED CROSS SECTION OF THE MANY-BODY SCATTERING
Acta Mathematica Scientia, 1996Abstract In this paper the tensor probability current and continuity equation is obtained, with this the correlated cross section of many particle scattering can be evaluation.
Zhiyong Wei, Yongtai Zhu
openaire +1 more source
Scattering cross section of composite conducting and lossy dielectric bodies
Proceedings of the IEEE, 1989An E-field integral equation for the computation of the radar cross section of finite composite conducting and lossy inhomogeneous dielectric bodies is presented. The equivalence principle is used to replace all conducting bodies by an equivalent surface electric current, and the dielectric is replaced by an equivalent volume polarization current.
Tapan K. Sarkar, Ercument Arvas
openaire +1 more source

