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Linear - OSTI GOV

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Last Updated: 22 August 2022

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Midfidelity model verification for a point-absorbing wave energy converter with linear power take-off

Researchers need fast and accurate simulation software in the preliminary design phase of a wave energy converter's wave energy converter. As an alternative, midfidelity simulations can simulate simulations in the order of real time. We operate Uppsala University's WEC in a relatively shallow sea state and model it using WEC-Sim, and report it using WEC-Sim. We investigate the system separately for 1, 2, and 3 degrees of freedom in order to determine the midfidelity model's ability to capture WEC dynamics. We also found that the poorly nonlinear WEC-Sim solution adheres to the computational fluid dynamics of computational fluid dynamics, while the linear solution could lead to misleading outcomes.

Source link: https://www.osti.gov/biblio/1877082


Beam delivery and final focus systems for multi-TeV advanced linear colliders

The Beam Delivery System is a vital component of a high-energy linear collider. The beam is taken from the accelerator and brought it to a halt at the Interaction Point, which is the Interaction Point. We review BDS designs based on traditional quadrupole magnets and discuss the challenges involved in extending them to the Multi-TeV system, which is consistent with requirements for advanced accelerator technology.

Source link: https://www.osti.gov/biblio/1877666


Topology of the $O(3)$ non-linear sigma model under the gradient flow

The O non-linear sigma model is a prototypical field theory for QCD and ferromagnetism, as well as a portable method for investigating topological effects. The gradient flow has been shown in lattice QCD to remove ultraviolet singularities from the topological susceptibility of ultraviolet singularities from the topological susceptibility. We introduce a u03b8-term and examine the topological charge as a result of a gradient flow's u03b8-fold.

Source link: https://www.osti.gov/biblio/1880049


Battery system management through non-linear estimation of battery state of charge

Battery information is collected for a time period in which a battery system has been operating for a set period. The battery data in the spreadsheet represents the true results of the battery system over the time period. The battery data shown in the table represents the actual results of the battery system over time. An estimated result of the battery system over a variety of states-of-charge can be determined using the curves for the battery data for the sub-periods of time.

Source link: https://www.osti.gov/biblio/1860050


Simulation and experimental study of proton bunch self-modulation in plasma with linear density gradients

We present numerical simulations and experimental findings of the self-modulation of a long proton bunch in a plasma with linear density gradients along the beam course. 125, 264801]: The charge of the modulated bunch is lower than with positive gradients, but with negative gradients it is cheaper. The study of the modulation frequency reveals information about the shift of the self-modulation process along the plasma's evolution. The modulation frequency across time-resolved photographs of the bunch, in particular for negative gradients, reveals the location along the plasma where protons leave the wakefields.

Source link: https://www.osti.gov/biblio/1870020


Observation of Giant Optical Linear Dichroism in a Zigzag Antiferromagnet FePS 3

Despite having the optical wave vector parallel to the Neel vector, the observed LD is huge. The LD in other antiferromagnetic systems is at least one order of magnitude larger than those reported in other antiferromagnetic devices, in which the optical wave vector is orthogonal to the Neel vector. An electronic anisotropy present in FePS 3's zigzag direction is the source of the optical anisotropy that is independent of the spin-pointing direction, which is independent of the spin-pointing direction. In addition, our results point to a new optical method for the investigation and control of zigzag or stripe magnetic order in highly linked systems.

Source link: https://www.osti.gov/biblio/1835248


Sulfate-Controlled Heterogeneous CaCO 3 Nucleation and Its Non-linear Interfacial Energy Evolution

nucleation, however, it was experimentally difficult to elucidate the sulfate-CaCO 3 interactions at the explicit first step of CaCO 3 formation: nucleation. The results revealed that sulfate can be integrated in the nuclei, resulting in a 28% decrease in the CaCO 3 nucleus density, contributing to a 120% decline in the CaCO 3 nucleus size and preventing the vaping-to-calcite transition. In addition, this report quantitatively connects sulfate concentrations to CaCO 3's potent interfacial energies, resulting in a non-linear trend, indicating that CaCO 3 heterogeneous nucleation is more sensitive at a low sulfate concentration. This research can be quickly expanded to investigate other additives and CaCO 3 interfacial energies in order to determine quantitative correlations between additive concentrations and CaCO 3 nucleation, a major step toward establishing natural and engineered controls on CaCO 3 nucleation.

Source link: https://www.osti.gov/biblio/1840567


Dynamics and energy coupling of gas puff Z-pinches on a fast linear transformer driver

On the Compact Experimental System for Z-pinch and Ablation Research linear transformer driver, with 500 kA current and 160 ns increase time, you can try annular Ar and Ne gas shells. We present findings from the first systematic gas puff Z-pinch experiments employing a fast LTD as a linch generator, in which we find that 7% of the stored energy in the capacitors is related to plasma kinetic energy, as shown by self-emission and laser schlieren photos.

Source link: https://www.osti.gov/biblio/1850368


Improving the MJO Forecast of S2S Operation Models by Correcting Their Biases in Linear Dynamics

The MJO's key functional characteristics, such as its growth rate and propagation rate, are both missing from systematic inability in capturing the MJO's key attributes, such as its growth rate and propagation rate. We recommend a method to partially correct the MJO linear dynamic operators' MJO linear dynamic S2S models by derivinging the linear dynamic operators using the linear inverse modeling approach to raise the MJO's prediction of three operational dynamic S2S models.

Source link: https://www.osti.gov/biblio/1850894

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions