منابع مشابه
Chaotic scattering and the magneto-Coulomb map.
A nonrelativistic classical electron scattering by a fixed ion in a uniform magnetic field is discussed. The system is nonintegrable, and there is chaotic scattering for a certain class of initial conditions. A two-dimensional discrete map is derived from the equation of motion. Our map exhibits four different types of motion by changing the parameters which characterize the initial condition. ...
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For displacement of individual fragments of large molecule relative to each other to arise and work to be performed, force must be born inside protein. What kind of interaction generates this force? Models based on Huxley’s 1957 theory ascertain relations between chemical reactions rate constants and energies of crossbridge conformations. Nevertheless, understand in the framework of thermodynam...
متن کاملPlasma crystal: Coulomb crystallization in a dusty plasma.
A macroscopic Coulomb crystal of solid particles in a plasma has been observed. Images of a cloud of 7-p,m "dust" particles, which are charged and levitated in a weakly ionized argon plasma, reveal a hexagonal crystal structure. The crystal is visible to the unaided eye. The particles are cooled by neutral gas to 310 K, and their charge is >9800e, corresponding to a Coulomb coupling parameter r...
متن کاملanalyzing patterns of classroom interaction in efl classrooms in iran
با به کار گیری روش گفتما ن شنا سی در تحقیق حا ضر گفتا ر میا ن آموزگا را ن و زبا ن آموزا ن در کلا سهای زبا ن انگلیسی در ایرا ن مورد بررسی قرار گرفت. ا هداف تحقیق عبا رت بودند از: الف) شنا سا ئی سا ختارهای ارتبا ط گفتا ری میا ن معلمین و زبا ن آموزا ن ب) بررسی تا ثیر نقش جنسیت دبیرا ن و زبا ن آموزان بر سا ختا رهای ارتبا ط گفتا ری میا ن آنها پ) مشخص کردن اینکه آ یا آموزگاران غا لب بر این ارتبا ط گف...
Coulomb interaction effects in spin-polarized transport
We study the effect of the electron-electron interaction on the transport of spin polarized currents in metals and doped semiconductors in the diffusive regime. In addition to well-known screening effects, we identify two additional effects, which depend on many-body correlations and exchange and reduce the spin diffusion constant. The first is the “spin Coulomb drag” an intrinsic friction mech...
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ژورنال
عنوان ژورنال: Kakuyūgō kenkyū
سال: 1961
ISSN: 0451-2375,1884-9571
DOI: 10.1585/jspf1958.6.202