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Article
Open AccessSuperluminality in DHOST theory with extra scalar
We consider DHOST Ia theory interacting gravitationally with an additional conventional scalar field minimally coupled to gravity. At the linearized level of perturbations about cosmological background, we fin...
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Article
Erratum to: EuPRAXIA Conceptual Design Report
Figure 20.1 was not correct in the published article. The original article has been corrected. The published apologizes for the inconvenience.
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Article
Open AccessEuPRAXIA Conceptual Design Report
This report presents the conceptual design of a new European research infrastructure EuPRAXIA. The concept has been established over the last four years in a unique collaboration of 41 laboratories within a H...
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Article
Grain Structure Evolution during Friction-Stir Welding
In this work, the current state of understanding of grain structure evolution during friction-stir welding is briefly reviewed. The broad aspects of this process and experimental techniques for its examination...
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Article
Influence of Welding Temperature on Material Flow During Friction Stir Welding of AZ31 Magnesium Alloy
In this work, the effect of welding temperature on material flow during friction stir welding (FSW) of AZ31 magnesium alloy was examined. To this end, FSW was conducted in the temperature range of 0.65-0.85 Tm (T
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Article
Open AccessFrom topological to quantum entanglement
Entanglement is a special feature of the quantum world that reflects the existence of subtle, often non-local, correlations between local degrees of freedom. In topological theories such non-local correlations...
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Article
Martensite-to-Austenite Reversion and Recrystallization in Cryogenically-Rolled Type 321 Metastable Austenitic Steel
The annealing behavior of cryogenically-rolled type 321 metastable austenitic steel was established. Cryogenic deformation gave rise to martensitic transformation which developed preferentially within deformat...
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Chapter and Conference Paper
X-Rays Driven by Single-Cycle, Petawatt Lasers: A Path to Exawatt Pulses
The post-compression of high-energy (PW) scale laser pulses offers the promise of maximizing the peak intensity deliverable by a given laser system for the amplified energy produced within the pulses. One re...
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Chapter
Deformation Behavior of Friction Stir Processed Magnesium Alloys
The present study explores the feasibility of using friction stir processing to produce high-performance Mg alloy sheet. Deformation behavior of friction stir processed Mg alloys is addressed. Analyses of grai...
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Article
Properties of perturbations in conformal cosmology
This review is centered on the properties and mechanisms underlying the generation of perturbations in models of the early Universe with conformal invariance, which could be alternatives to inflation. A detail...
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Article
Spatially-uniform temporal recompression of intense femtosecond optical pulses
A specially designed telescope with defocusing lens and off-axis parabolic mirror, which is working as a nonlinear element and producing self-phase modulation, was implemented for intense (3.1 TW/cm2) Fourier Tra...
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Article
Single cycle thin film compressor opening the door to Zeptosecond-Exawatt physics
This article demonstrates a new compression scheme that has the potential to compress a high energy pulse as high as a few hundred Joules in a pulse as short as one optical cycle at 0.8 μm producing a true ult...
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Article
Generalized Jack polynomials and the AGT relations for the SU(3) group
We find generalized Jack polynomials for the SU(3) group and verify that their Selberg averages for several first levels are given by Nekrasov functions. To compute the averages, we derive recurrence relations fo...
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Article
Peritoneal inclusion cysts: clinical characteristics and imaging features
To investigate the frequency of patient characteristics, causative factors and imaging features associated with pathology-proven peritoneal inclusion cysts (PICs).
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Article
Loss of coherency and interphase α/β angular deviation from the Burgers orientation relationship in a Ti–6Al–4V alloy compressed at 800 °C
The mutual relationship between phases in two-phase titanium alloys, αHCP and βBCC, is such that: {0001}α||{110}β; $$ \left\langle {11...
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Article
Microstructural Evolution During Friction Surfacing of Dissimilar Aluminum Alloys
The microstructural evolution during friction surfacing of an aluminum alloy 6082-T6 rod on an aluminum alloy 2024-T351 substrate was characterized using the electron backscatter diffraction technique. Crystal...
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Article
Specific Character of Material Flow in Near-Surface Layer during Friction Stir Processing of AZ31 Magnesium Alloy
Microstructure and texture evolution in the near-surface layer during friction stir processing (FSP) of AZ31 magnesium alloy was studied. Material flow was found to be a very complex process consisting of seve...
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Article
Microstructural Characterization of High-Strength Steel Lap Joint Produced by Friction Spot Joining
Friction spot joining (FSJ) was applied to DP590 steel using an uncoated Si3N4 tool without using shielding gases. The microstructural distribution and microstructural evolution of the steel were systematically e...
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Chapter and Conference Paper
Numerical and experimental investigation of viscous shock layer receptivity and instability
A hypersonic viscous shock layer over a flat plate at the free-stream Mach number M∞ = 21 is investigated both numerically and experimentally. The shock layer is excited by either external acoustic field or bl...
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Article
Wave propagation in uniaxial graded-index optical waveguides
Propagation of guided-modes in uniaxial optical waveguides is investigated. When the optical axis lies in the plane of the waveguide, a coupling between TE and TM modes takes place. Based on the coupled-mode t...
