Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California, 94720, United States; California Institute of Technology, Pasadena, California, 91125, United States, Materials and Process Simulation Center, California Institute of Technology, Pasadena, CA 91125, United States, and Institute for Molecular Engineering, The University of Chicago, 5801 South...

Abstract Battery energy storage technology has a promising future in the field of compact high-power pulse drivers due to its high density. In this paper, three types high-performance lithium batteries, such as titanate (LTO) battery, iron phosphate (LFP) and Ni,Co,Al (NCR) ternary lithium-ion have been studied different ambient temperatures by using DC internal resistance measurement method. T...

Extensive lithium wall coatings and liquid lithium plasma-limiting surfaces reduce recycling, with dramatic improvements in Ohmic plasma discharges in the Current Drive Experiment-Upgrade. Global energy confinement times increase by up to 6 times. These results exceed confinement scalings such as ITER98P(y,1) by 2-3 times, and represent the largest increase in energy confinement ever observed f...

As a generic model for transport of interacting fermions through a barrier or interstitials in a lattice, quantum Brownian motion in a periodic potential is studied. There is a duality transformation between the continuous coordinate or phase representation and the discrete momentum or charge representation for general frequencydependent damping. Sub-Ohmic friction is mapped on super-Ohmic fric...

The authors propose a scaling of the sawtooth repetition time for Ohmic discharges. This scaling has been obtained from simulations with reduced magnetohydrodynamic equations together with a simple profile consistent transport model. The choice of a profile consistent perpendicular thermal diffusion coefficient allows the scaling of the sawtooth repetition time to be obtained in terms of the di...

The aim of this work was to compare the effects of freezing rate on electrical conductivity of potatoes, carrots and apples. Electrical conductivity tests were conducted on a custom ohmic cell while samples texture was measured by means of a universal testing machine. The raw un-pretreated samples were used as control. This study showed that freezing pre-treatments lead to differences in electr...

Abstract Following the Caldeira-Leggett approach to describe dissipative quantum systems the structure function for a harmonic oscillator with Ohmic dissipation is evaluated by an analytic continuation from euclidean to real time. The analytic properties of the Fourier transform of the structure function with respect to the energy transfer (the “characteristic function”) are studied and utilize...

We experimentally study the widths of resonances in a two-dimensional microwave cavity at room temperature. By developing a model for the coupling antennas, we are able to discriminate their contribution from those of Ohmic losses to the broadening of resonances. Concerning Ohmic losses, we experimentally put to evidence two mechanisms: damping along propagation and absorption at the contour, t...

A tight-binding Hamiltonian is used to study the electronic properties of covalently bonded, crossed ~5,5! metallic nanotubes with an increasing degree of disorder in the junction region. Ideal junctions with a few topological defects show Ohmic behavior. Upon increasing disorder, Ohmic conduction is suppressed in favor of hopping conductivity. Strongly disordered junctions as could be obtained...

Following the Caldeira-Leggett approach to describe dissipative quantum systems the structure function for a harmonic oscillator with Ohmic dissipation is evaluated by an analytic continuation from euclidean to real time. The analytic properties of the Fourier transform of the structure function with respect to the energy transfer (the “characteristic function”) are studied and utilized. In the...