Ara
Toplam kayıt 62, listelenen: 31-40
Effective atomic numbers and electron densities of CuGaSe2 semiconductor in the energy range 6-511 keV
(JOHN WILEY & SONS LTD, THE ATRIUM, SOUTHERN GATE, CHICHESTER PO19 8SQ, W SUSSEX, ENGLAND, 2008-09)
The effective atomic numbers and electron densities of the CuGaSe2 semiconductor were calculated at 29 different energies from 6.9 to 511.0 keV by using the measured mass attenuation coefficients. Also, the mass attenuation ...
Investigation of the Effect of Dual Ignition on the Exhaust Emissions of an SI Engine Operating on Different Conditions by Using Quasi-dimensional Thermodynamic Cycle Model
(Strojarstvo (Croatian Union of Mechanical Engineers and Naval Architects), 2009)
In the presented study, the effects of using dual-spark plug and variation of the spark plug location on the exhaust emissions of an SI engine operating in different conditions were investigated theoretically. A quasi-dimensional ...
Lateral variations of the modal (a/b) values for the different regions of the World
(Journal of Geodynamics, 2002)
Several catalogues of global earthquakes reported for the time period from 1900 to 2000 have been compiled to examine lateral variations of the modal (a/b) values as derived from the Gutenberg–Richter empirical law. For ...
Mineralogy, whole-rock and Sr–Nd isotope geochemistry of mafic microgranular enclaves in Cretaceous Dagbasi granitoids, Eastern Pontides, NE Turkey: Evidence of magma mixing, mingling and chemical equilibration
(0009-2819/$ - see front matter r 2008 Elsevier GmbH. All rights reserved. doi:10.1016/j.chemer.2008.08.002, 2008-08-04)
Rocks of the Late Cretaceous Dagbasi Pluton (88–83 Ma), located in the eastern Pontides, include mafic microgranular enclaves (MMEs) ranging from a few centimetres to metres in size, and from ellipsoidal to ovoid inshape. ...
Measurment of L Subshell X-Ray Production Cross-Sections at Energy 31,635 keV and L Subshell Fluoressance Yields for Elements 74 ? Z ? 92
(X-Ray Spectrometry, 2002)
TheL
l
,L
α
,L
β
andL
γ
X-rayproductioncross-sectionsandL
i
(
i
=
1,2and3)X-rayfluorescence(XRF)cross-sectionshavebeenmeasuredforsomeelementsintheatomicrange55
≤
Z
≤
81at59.54keV.ThevaluesofL
i
...
Mathematical analysis of spark ignition engine via the combination of the first and second laws of thermodynamics
(Proceedings of Royal Society A-Mathematical Physical & Engineering Sciences (Royal Society Publishing), 2008)
This study aims at the theoretical exergetic evaluation of spark ignition engine operation. For this purpose, a two-zone quasi-dimensional cycle model was installed, not considering the complex calculation of fluid motions. ...
Measurment of L X-Ray Production Cross-Sections and Li Subshell Florescence Yields
(Journal of Electron Spectrometry And Related Phenomena, 2003-04-03)
Li (i=1, 2 and 3) X-ray production cross sections have been measured for 14 elements in the atomic number range 55≤Z≤81 at 15.73 keV. The values of Li subshell fluorescence yields (ω1, ω2 and ω3) have been determined using ...
A New Method to Compensate for Counting Losses due to System Dead Time
(Nuclear Instruments and Methods in Physics Research A, 2009-05-21)
Determination of count losses and pile-up pulse effects in quantitative and qualitative analysis became a vital step in various analyses. Therefore, compensating for counting losses is of importance. These counting losses ...
NATURAL CONVECTION HEAT TRANSFER IN A PARTIALLY DIVIDED TRAPEZOIDAL ENCLOSURE
(THERMAL SCIENCE, 2009)
Nat u ral con vec tion heat trans fer in a par tially di vided trap e zoidal en clo sure is stud ied nu mer i cally us ing the con trol vol ume method. Sum mer and win ter con di - tions are sep a rately ex am ined by im ...
Perturbation Based Stochastic Finite Element Analysis of the Structural Systems with Composite Sections under Earthquake Forces
(Steel and Composite Structures, 2008)
This paper demonstrates an application of the perturbation based stochastic finite element method (SFEM) for predicting the performance of structural systems made of composite sections with random material properties. The ...