Results 91 to 100 of about 1,024,399 (337)

RoHS‐Compliant, Cu‐Zn‐In‐Se‐Based Core/Multi‐shell Quantum Dots with Efficient and Tunable Short‐Wave Infrared Emission

open access: yesAdvanced Functional Materials, EarlyView.
An innovative combination of size‐controlled template synthesis, partial cation exchange reactions, and dual shell passivation offers a new class of RoHS‐compliant, heavy metal‐free Cu‐Zn‐In‐Se/ZnS/Al2O3 core/shell/shell quantum dots (QDs), exhibiting long‐range tunability, highly efficient SWIR emission with remarkably narrow photoluminescence ...
Avijit Saha   +8 more
wiley   +1 more source

A Numerical Method on Large Roll Motion in Beam Seas Under Intact and Damaged Conditions

open access: yesJournal of Marine Science and Engineering
The second-generation intact stability criteria, including five stability failure modes, were approved by the International Maritime Organization (IMO) in 2020, and it is an urgent task to develop the numerical method for the significant roll motion ...
Jiang Lu   +4 more
doaj   +1 more source

Probing P and CP violations on the cosmological collider

open access: yesJournal of High Energy Physics, 2020
In direct analogy to the 4-body decay of a heavy scalar particle, the 4-point correlation function of primordial fluctuations carries P and CP information. The CP violation appears as a P-odd angular dependence in the imaginary part of the trispectrum in
Tao Liu   +3 more
doaj   +1 more source

Cycling chaos: its creation, persistence and loss of stability in a model of nonlinear magnetoconvection [PDF]

open access: yes, 1998
We examine a model system where attractors may consist of a heteroclinic cycle between chaotic sets; this ‘cycling chaos’ manifests itself as trajectories that spend increasingly long periods lingering near chaotic invariant sets interspersed with short ...
A.M. Rucklidge   +23 more
core   +3 more sources

Analysis of the Electrochemical Stability of Sulfide Solid Electrolyte Dry Films for Improved Dry‐Processed Solid‐State Batteries

open access: yesAdvanced Functional Materials, EarlyView.
An adapted processing for solvent‐free argyrodite solid electrolyte films based on insights into degradation mechanisms of the widely used binder polytetrafluoroethylene is presented. By adapting the dry film processing, long‐term cycling in Si||NMC pouch cells is demonstrated over more than 1000 cycles with a capacity retention of more than 80%, and ...
Maria Rosner   +10 more
wiley   +1 more source

Investigation of the Scale Effects on Roll Motion for The Ship Bettica Using Numerical Simulation

open access: yesPolish Maritime Research
In this paper, we focus on analysing scale effects on the roll motion of the Italian ship Bettica using a numerical method. First, the roll decay motion of the ship is simulated at both the model scale and full scale, and the predicted results are ...
Phuong Nguyen Thi Ha   +3 more
doaj   +1 more source

Roll motion characteristics of a polar research ship with ice accumulation in beam waves

open access: yesInternational Journal of Naval Architecture and Ocean Engineering
Stability of polar vessels could be deteriorated due to ice accumulation, making it crucial to investigate the dynamic behavior of the vessel under harsh polar conditions. In this work, the effect of ice accumulation on the roll motion characteristics of
Jianzhang Qi   +5 more
doaj   +1 more source

Testing and comparing tachyon inflation to single standard field inflation

open access: yes, 2004
We compare the standard single scalar field inflationary predictions with those of an inflationary phase driven by a tachyon field. A slow-roll formalism is defined for tachyon inflation and we derive the spectra of scalar and tensor perturbations as ...
Steer, Daniele, Vernizzi, Filippo
core   +1 more source

Deformation and Degradation in 18650 Li‐Ion Cells Under Freeze‐Thaw Cycling

open access: yesAdvanced Functional Materials, EarlyView.
This study investigates the impact of freezethaw degradation of 18650 cells via combined electrochemical and x‐ray imaging studies. High‐resolution synchrotron X‐ray tomography reveals deformation of the jelly‐roll structure and delamination of electrode active materials in cells cycled at 1C and 4C. These structural changes are quantitatively assessed
Xunkai Chen   +5 more
wiley   +1 more source

Investigation on Seakeeping of WTIVs Considering the Effect of Leg-Spudcan Well

open access: yesApplied Sciences
Aiming at the limited applicability of traditional empirical formulas in roll prediction for offshore wind turbine installation vessels (WTIVs), this study proposes a collaborative verification method that integrates model tests with Computational Fluid ...
Mingsheng Xiahou   +5 more
doaj   +1 more source

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