نتایج جستجو برای: experimental based theory
تعداد نتایج: 3977890 فیلتر نتایج به سال:
Electronic properties for bcc Fe and hcp Co in bulk state and also Fe-Co alloy were calculated by quantum calculation based on density functional theory and pseudopotential method. Combination of Wannier function and Berry phase theory was used for calculation of anomalous Hall conductivity in above structures. It was seen that split of band by the spin orbit interaction, lying on the Fermi le...
A plasma focus facility is a magnetically confinement fusion device, characterized by a relatively simple structure. Nowadays, it is a well-known fact that the theory of shock waves stands for temperature increment in plasma of a PF device. On the other hand, we also know that computer simulations can make experimental works easier and more cost- effective. So based on the MHD theory, shock w...
AbstractObjectives: The purpose of this study is to assess the effect of relaxa-tion training based on self-efficacy theory, on the mental health of preg- nant women.Method: In this clinical trial study, 110 primigravid women with medium to high levels of anxiety were assessed in two experimental and control groups. For the experimental group routine prenatal care plus relaxation training was ...
A study of the [C6 H6 Ir(PH3 )3 ]+ iridatropylium cation structure based on frontier orbital analysis, thermodynamic analysis, and natural bond orbital (NBO) theory is the main aim of the present research. Also, HOMO, LUMO energies, hardness, electrophilicity and chemical potential were calculated. Structural analysis indicated the optimized geometry shows a good agreement with the experimental...
abstract part one: the electrode oxidation potentials of a series of eighteen n-hydroxy compounds in aqueous solution were calculated based on a proper thermodynamic cycle. the dft method at the level of b3lyp-6-31g(d,p) was used to calculate the gas-phase free energy differences ,and the polarizable continuum model (pcm) was applied to describe the solvent and its interaction with n-hydroxy ...
the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...
the following question poped up: is there any relationship between iranian high school efl learners reading comprehension and listening comprehension? then the following null hypothesis (ho) was developed to the test the above, mentioned question. "there is no relationship between high school efl learners reading comprehension and listening comprehension. for nearly 16 weeks, the experimental g...
in the new age, in regard to human success in education in the globalizing world, one can consider english proficiency and individual differences as two important issues. in efl settings, reading skill plays an important role in education. it seems that using multiple intelligences theory in efl classes which values individual differences by tapping different intelligences, can be rewarding. as...
Whereas orthodox game theory relies on the unrealistic assumption of (commonly known) perfect rationality, the participants in game-playing experiments are, at best, rational only within limits. This makes it necessary to supplement orthodox game theory with a behavioral theory of game playing. This contribution first points out that this applies also to (one person-) decision theory. After rev...
We introduce a generalized theoretical approach to study imitation and subject it to rigorous experimental testing. In our theoretical analysis we nd that the di¤erent predictions of previous imitation models are due to di¤erent informational assumptions, not to di¤erent behavioral rules. It is more important whom one imitates rather than how. In a laboratory experiment we test the di¤erent th...
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