Explicit formulas for the magnetic field and divergence of multisolenoid Aharonov-Bohm potential are obtained; the mathematical essence of this potential is explained. It is shown that the magnetic field and divergence of this potential are very singular generalized functions concentrated at a finite ...
Power frequency magnetic fields produced by switchgear might interfere with sensitive equipment or might even conflict with exposure limits for people. In order to prevent possible influences the knowledge of the magnetic field levels at locations under concern is necessary. Though the magnetic field dis...
A new method of describing the magnetic fringing field is proposed. While the traditional method gives the two-dimensional magnetic field distribution by terminating the summation of the Maclaurin expansions at a finite derivative order, we summed the expansions up to infinity using the complex ...
aA magnetic field is a mathematical description of the magnetic influence of electric currents and magnetic materials 磁场是电流和磁性材料的磁性影响的一个数学描述[translate]
2b are the difference of two measurements of the resonant X-ray diffraction intensity with the sample magnetized in opposite directions by applying an external magnetic field of ±0.4 T during the experiment. This field strength is significantly lower than the field required to switch the FePt...
Magnetic anisotropy of igneous rocks A torque-meter method of measuring the magnetic anisotropy of rocks has been used in a study of a 1050-foot bore core from a Tasmanian dolerite sill. Each cylindrical specimen was suspended in a uniform field of 10.6 kilo-oersteds perpen... Stacey,F. D...
ð12Þ The fourth is obtained by setting Ek = B(Ek/B) and expanding equation (9) to obtain [=-=Scudder, 1997-=-] B r Bð Þ 0: ð13Þ Thus when Ek 6 0, magnetic field lines moving with E B/B2 do not produce the same time evolution of the magnetic field direction...
of phenomenological vertices is considered. We calculate the leading diagram of this amplitude in the Δ resonance region. It is demonstrated that the differential cross section of the ep → e ′ N ′π′γ′ and γp → N ′π′γ′ reactions is sensitive to the value of the magnetic ...
The realistic three-dimensional distribution of the magnetic field in pulsed lenses as well as all the fringing field effects are taken into account in the simulations. We have demonstrated, that for precise description of such magnets one cannot use the existing ion optical codes where ideal ...
{deg} g$, the finite field embedding problem asks to compute an explicit description of a field embedding of $\\mathbb{F}_q[X]/f(X)$ into $\\... L Brieulle,L De Feo,J Doliskani,... 被引量: 0发表: 2017年 On constructing permutations of finite fields Motivated by several constr...