In this paper, we extend the optimization analysis found in current literature for single-degree-of-freedom vibrational energy harvesters. We numerically derive and analyze conditions based on unified expressions piezoelectric electromagnetic Our contribution lies detailed comparison of both resonant anti-resonant states while fully including effect intrinsic resistance. include case excitation...

In a previous paper' it was stated that the maximum in the current potential curve found in a three-electrode tube with methane must be due either to a resonance potential of methane or to a large transparency for slow electrons. It was further pointed out thatthe interpretationof maxima in current-potential curves obtained in four-electrode tubes must also take into account the possibility of ...

Three kinds of magnetic resonance signals were detected in crystals of the spin-gap magnet TlCuCl3. First, we have observed the microwave absorption due to the excitation of the transitions between the singlet ground state and the excited triplet states. This mode has the linear frequency-field dependence corresponding to the previously known value of the zero-field spin-gap of 156 GHz and to t...

We give a unified perspective on the properties of a variety of quantum liquids using the theory of quantum phase transitions. A central role is played by a zero density quantum critical point which is argued to control the properties of the dilute gas. An exact renormalization group analysis of such quantum critical points leads to a computation of the universal properties of the dilute Bose g...

Radiofrequency magnetic fields are critical to nuclear excitation and signal reception in magnetic resonance imaging. The interactions between these fields and human tissues in anatomical geometries results in a variety of effects regarding image integrity and safety of the human subject. In recent decades, numerical methods of calculation have been used increasingly to understand the effects o...

Abstract The onset of turbulent heat transport at a higher temperature gradient than the critical linear instability, known as Dimits shift, is recurring feature nonlinear simulations for magnetically confined fusion plasmas. Resonance in coupling between modes that dominate energy transfer can lead to suppression turbulence and above gradient. As an expression this resonance, gyrokinetic show ...

We present a complex-scaling generalized pseudospectral method for accurate and efficient treatment of resonance states in two-center molecular systems, involving optimal nonuniform grid discretization of the Hamiltonian in prolate spheroidal coordinates. The procedure is applied to the first converged non-Hermitian Floquet study of multiphoton ionization of molecular ions in intense low-freque...

Resonance trapping appears in open many-particle quantum systems at high level density when the coupling to the continuum of decay channels reaches a critical strength. Here a reorganization of the system takes place and a separation of different time scales appears. We investigate it under the influence of additional weakly coupled channels as well as by taking into account the real part of th...