The first-harmonic balance involves the projection of nonlinearities on a first-harmonic Fourier basis, which reduces the governing partial differential equation into three ordinary boundary-value problems that should be solved numerically. The results showed that the predictions from the first-harmonic ...
28O is, given its extremeN/Zasymmetry, the only one that is—in principle—experimentally accessible that has yet to be observed. In recent years, the doubly magic character of the two other such neutron-rich nuclei,78Ni (Z = 28,N = 50;N/Z =...
For interest’s sake, this ODE has a physical interpretation as a driven damped harmonic oscillator; yp represents the steady state, and c1y1 + c2y2 is the transient. 2.5.4 Equation with variable coefficients A linear ODE of order n with variable coefficients has the general form pn(x)y...
& Yang, L. Giant photogalvanic effect and second-harmonic generation in magnetic axion insulators. Phys. Rev. B 102, 035440 (2020). Article ADS Google Scholar Kaplan, D., Holder, T. & Yan, B. Nonvanishing subgap photocurrent as a probe of lifetime effects. Phys. Rev. Lett. 125, ...
We study the first law of thermodynamics utilizing a frequency modulated quantum harmonic oscillator. For an adiabatic change in frequency, the temperature of the oscillator is proportional to the frequency. Then, we present a number rep... HC Kim,Y Lee 被引量: 0发表: 2021年 ...
(2002) in their Comprehensive Model (CM), consists in building a time-dependent, spherical harmonic model of the Sq and EEJ fields from a combination of observatory and satellite magnetic measurements. The resulting model provides the Sq and EEJ fields at every location at the Earth’s surface...
An external magnetic field will distort the symmetry of the magnetic flux within the core, and thus influence the even harmonics of the excitation frequency. The sensors and electronics are designed for selective measurement of the second harmonic of the excitation frequency. A feedback current is ...
Usually, the operation frequency range of a specific cementing evaluation acoustic logging tool is covered by such a “plateau” region. Mode excitation and contribution analyses show that the first arrivals in the cased boreholes for the poorly bonded conditions are the contributions from leaky ...
The position of its main peak is defined as the Plasmon frequency ωp which usually occurs at the frequency when the real part of dielectric function vanishes. Below ωp, the incident waves will be mostly reflected. The ωp values for the 99 crystals are listed in Table S3. The highest ...
(TF) in electrical and electronic engineering, the frequency response function (FRF) in mechanical engineering and the Green’s function in physics. These frameworks allow us to calculate all possible linear behaviors in the frequency-domain by using the first harmonic. However, nonlinear differential...