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340 Results Found

  • Article
  • Open Access
3,841 Views
8 Pages

9 April 2019

The problem of nonlinear natural convection in a fluid saturated porous layer heated from below is reviewed focusing on the specific result of a collapse of the wave function. When the conditions for the onset of convection are met, a wave function i...

(This article belongs to the Section Atomic Physics)
  • Article
  • Open Access
5 Citations
8,782 Views
45 Pages

18 August 2020

The Transactional Interpretation of quantum mechanics exploits the intrinsic time-symmetry of wave mechanics to interpret the ψ and ψ* wave functions present in all wave mechanics calculations as representing retarded and advanced waves movin...

(This article belongs to the Special Issue Symmetries in Quantum Mechanics)
  • Article
  • Open Access
5 Citations
3,591 Views
8 Pages

5 December 2022

Based on the assumption that the standard Schrödinger equation becomes gravitationally modified for massive macroscopic objects, two independent proposals have survived from the 1980s. The Schrödinger–Newton equation (1984) provides w...

  • Article
  • Open Access
5 Citations
3,202 Views
10 Pages

4 December 2019

I impose the Newtonian criteria of inertial frames on the c.o.m.trajectories of massive objects undergoing spontaneous collapse of their wave function. The corresponding modification of the so far used stochastic Schrödinger equation eliminates...

  • Article
  • Open Access
240 Views
22 Pages

Forward Waveform Transfer of Rotational Cliff Collapse-Induced Waves for Early Warning Assessment of Wave Hazards in Water Bodies

  • Hasnain Gardezi,
  • Xingyue Li,
  • Yu Huang,
  • Irtza Ali and ,
  • Syed Muhammad Mudassir Zia and
  • Taimur Mazhar Sheikh
  • + 1 author+ 0 author

13 October 2026

Rotational collapse of a cliff into a confined water body can generate a high-energy leading wave group that reaches exposed shores within a short time. Improved hazard assessment therefore requires a practical link between an earlier near-source wat...

(This article belongs to the Topic Recent Advances in Hydrological and Hydraulic Engineering: A Contemporary Perspective)
  • Article
  • Open Access
1 Citations
720 Views
18 Pages

We develop an information-geometric framework for describing quantum state-update processes associated with measurement and statistical distinguishability. The approach is based on the quantum relative entropy and the quantum Fisher information metri...

(This article belongs to the Topic Quantum Systems and Their Applications)
  • Article
  • Open Access
455 Views
21 Pages

20 August 2026

Granular collapse-induced wave generation is a critical process in coastal engineering and natural hazards, yet its rapid and complex fluid–solid coupling mechanism poses significant challenges for numerical modeling. This paper presents a comp...

(This article belongs to the Special Issue Advances in Multiphase Flow in Hydraulic and Marine Engineering)
  • Article
  • Open Access
1 Citations
1,764 Views
17 Pages

Estimation of the High-Frequency Feature Slope in Gravitational Wave Signals from Core Collapse Supernovae Using Machine Learning

  • Alejandro Casallas-Lagos,
  • Javier M. Antelis,
  • Claudia Moreno and
  • Ramiro Franco-Hernández

25 December 2024

We conducted an in-depth exploration of the use of different machine learning (ML) for regression algorithms, including Linear, Ridge, LASSO, Bayesian Ridge, Decision Tree, and a variety of Deep Neural Network (DNN) architectures, to estimate the slo...

  • Article
  • Open Access
5 Citations
2,690 Views
21 Pages

Large waves cause a great number of collapsed-ship accidents, resulting in the loss of many lives and properties. It has been found that most of these collapses are caused by encountering oblique waves. As a result, the ship structure experiences a c...

(This article belongs to the Section Ocean Engineering)
  • Article
  • Open Access
5 Citations
2,868 Views
17 Pages

Measurements of Shear Wave Velocity for Collapsible Soil

  • Omar EI-Shafee,
  • Inthuorn Sasanakul,
  • Tarek Abdoun and
  • Mourad Zeghal

28 April 2024

This paper examines the effects of collapsible soil structure on shear wave velocity. The study attempts to simulate hydraulic fill sand deposits, which represent a natural soil deposition process that can result in a collapsible soil structure. A se...

  • Article
  • Open Access
9 Citations
2,221 Views
15 Pages

7 January 2025

This work numerically investigates the fully nonlinear evolution of the free surface of a deep non-conducting liquid in a strong tangential electric field based on the method of dynamic conformal transformations. Direct numerical simulation revealed...

(This article belongs to the Section Hydraulics and Hydrodynamics)
  • Article
  • Open Access
2 Citations
3,013 Views
14 Pages

Nonstatic quantum light waves arise in time-varying media in general. However, from a recent report, it turned out that nonstatic waves can also appear in a static environment where the electromagnetic parameters of the medium do not vary in time. Su...

  • Article
  • Open Access
17 Citations
4,542 Views
10 Pages

We studied the detectability and reconstruction of gravitational waves from core-collapse supernova multidimensional models using simulated data from detectors predicted to operate in the late 2020s and early 2030s. We found that the detection range...

(This article belongs to the Special Issue Present and Future of Gravitational Wave Astronomy)
  • Article
  • Open Access
5 Citations
4,960 Views
15 Pages

20 November 2023

During the design process, architectural layout configuration is subject to complex constraints such as site conditions and design requirements, resulting in limited design efficiency. This research aims to provide architects with an effective design...

(This article belongs to the Special Issue Application of Computer Technology in Buildings)
  • Article
  • Open Access
1,968 Views
16 Pages

13 January 2024

The traditional fixed boundary could not transmit the elastic-plastic stress waves in the progressive collapse analysis of the truss structures, leading to discrepancies in understanding the true response of structures. To solve the critical problem,...

(This article belongs to the Special Issue Advancements in Large-Span Steel Structures and Architectural Design)
  • Article
  • Open Access
1 Citations
1,617 Views
11 Pages

6 December 2023

By using stochastic modeling, the investigation of the energy and wave characteristics of novel structures that develop in the sea and ocean currents becomes one of the most important advancements in the generation of sustainable and renewable energy...

(This article belongs to the Section D1: Probability and Statistics)
  • Article
  • Open Access
8 Citations
2,776 Views
15 Pages

21 July 2023

This study employs the VOF method to conduct the direct numerical simulation of the collapse progress of the near-wall bubble cluster. Factors such as viscosity, compressibility, and surface tension are taken into account, with an emphasis on the flo...

(This article belongs to the Special Issue Complex Fluid Dynamics Modeling and Simulation)
  • Article
  • Open Access
2 Citations
1,703 Views
12 Pages

Oscillating Nonlinear Acoustic Waves in a Mooney–Rivlin Rod

  • Anastasia Karakozova and
  • Sergey Kuznetsov

6 September 2023

Harmonic wave excitation in a semi-infinite incompressible hyperelastic 1D rod with the Mooney–Rivlin equation of state reveals the formation and propagation of the shock wave fronts arising between faster and slower moving parts of the initial...

(This article belongs to the Section Applied Physics General)
  • Review
  • Open Access
14 Citations
6,061 Views
20 Pages

A Review of the Dynamics Progress of Bubble Collapse within Droplet and Droplet Splash

  • Yuning Zhang,
  • Xiaofei Zhang,
  • Shurui Zhang,
  • Jiaze Ying and ,
  • Yihao Yang,
  • Hongbo Wang,
  • Zhaohao Li and
  • Yuning Zhang
  • + 3 authors+ 0 author

3 July 2023

The dynamics of a cavitation bubble within a droplet is one of the hot research topics at present. The present paper summarizes the research progress of bubble collapse within droplets and associated droplet splash. Firstly, three typical structures...

(This article belongs to the Section Fluid Science and Technology)
  • Article
  • Open Access
220 Views
15 Pages

10 October 2026

Based on the governing equations of the electromagnetic radiation field and the theory of multi-layer media propagation, the governing equations for electromagnetic wave attenuation are derived. A stable solution to the resulting large-scale sparse l...

(This article belongs to the Section Process Control, Modeling and Optimization)
  • Article
  • Open Access
642 Views
23 Pages

22 September 2026

The quantum measurement problem, i.e., the apparent conflict between unitary quantum evolution and non-unitary, stochastic wave-function collapse, remains unresolved a century after the formulation of quantum mechanics. We first review the standard p...

(This article belongs to the Section Quantum Information)
  • Article
  • Open Access
2 Citations
2,786 Views
8 Pages

19 July 2024

The measurement problem of quantum mechanics concerns the question as to under which circumstances coherent wave evolution becomes disrupted to produce eigenstates of observables, instead of evolving superpositions of eigenstates. The problem already...

  • Feature Paper
  • Article
  • Open Access
14 Citations
5,919 Views
8 Pages

16 April 2022

Einstein became bothered by quantum mechanical action at a distance within two years of Schrödinger’s introduction of his eponymous wave equation. If the wave function represents the “real” physical state of a particle, then th...

(This article belongs to the Special Issue Completeness of Quantum Theory: Still an Open Question)
  • Article
  • Open Access
10 Citations
4,206 Views
16 Pages

A Simulation Calculation Method of a Water Hammer with Multpoint Collapsing

  • Li Zhao,
  • Yusi Yang,
  • Tong Wang,
  • Liang Zhou and ,
  • Yong Li and
  • Miao Zhang
  • + 1 author+ 0 author

2 March 2020

The traditional discrete vapor cavity model (DVCM) is widely used in water hammer simulation. Water column separation in pipelines is usually predicted with this model. Nevertheless, the main weaknesses of this model consist of numerical instability...

  • Feature Paper
  • Article
  • Open Access
1 Citations
4,652 Views
7 Pages

Effect of Turbulence on Line Shapes in Astrophysical and Fusion Plasmas

  • Ibtissem Hannachi,
  • Mutia Meireni,
  • Paul Génésio,
  • Joël Rosato and ,
  • Roland Stamm and
  • Yannick Marandet
  • + 1 author+ 0 author

25 September 2017

We look at the effect of wave collapse turbulence on a hydrogen line shape in plasma. An atom immersed in plasma affected by strong Langmuir turbulence may be perturbed by a sequence of wave packets with a maximum electric field magnitude that is lar...

(This article belongs to the Special Issue Spectral Line Shapes in Astrophysics and Related Topics)
  • Article
  • Open Access
1,386 Views
10 Pages

3 September 2024

The run-up of a vortex hydrodynamic bore onto an inclined beach is the subject of this study. To theoretically analyze this problem, we use the Benny equations, which, within the shallow water model, allow us to take into account the distribution of...

(This article belongs to the Section Physical Oceanography)
  • Article
  • Open Access
5 Citations
6,672 Views
34 Pages

Large Earthquakes in Subduction Zones around the Polar Regions as a Possible Reason for Rapid Climate Warming in the Arctic and Glacier Collapse in West Antarctica

  • Leopold I. Lobkovsky,
  • Alexey A. Baranov,
  • Igor A. Garagash,
  • Mukamay M. Ramazanov and ,
  • Irina S. Vladimirova,
  • Yurii V. Gabsatarov,
  • Dmitry A. Alekseev and
  • Igor P. Semiletov
  • + 3 authors+ 0 author

A correlation is observed between changes in the level of Earth’s seismic activity and increments of the atmospheric methane concentration over the past 40 years. Trigger mechanisms are proposed for methane emissions and glacier collapse in pol...

(This article belongs to the Special Issue Advances in Marine Geology—Selected Papers from P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences)
  • Article
  • Open Access
5 Citations
1,496 Views
12 Pages

Modulations of Collapsing Stochastic Modified NLSE Structures

  • Mahmoud A. E. Abdelrahman,
  • Emad K. El-Shewy,
  • Y. Omar and
  • N. F. Abdo

18 October 2023

The exact solutions of the nonlinear Schrödinger equation (NLSE) predict consistent novel applicable existences such as solitonic localized structures, rouge forms, and shocks that rely on physical phenomena to propagate. Theoretical explanation...

(This article belongs to the Topic Mathematical Applications of Nonlinear Wave Properties in Crystalline and Dispersive Media)
  • Article
  • Open Access
49 Citations
7,474 Views
13 Pages

31 January 2019

This paper investigates numerically the collapses of both a single cavitation bubble and a cluster consisting of 8 bubbles, concerning mainly on the conversions between different forms of energy. Direct numerical simulation (DNS) with volume of fluid...

(This article belongs to the Special Issue Advances in Hydraulics and Hydroinformatics)
  • Article
  • Open Access
3 Citations
5,729 Views
20 Pages

7 July 2023

In this study, we investigated a new zeta formula in which the zeta function can be expressed as the sum of an infinite series of delta and cosine functions. Our findings demonstrate that this formula possesses duality characteristics and we establis...

(This article belongs to the Special Issue New Trends in Special Functions and Applications)
  • Article
  • Open Access
23 Citations
6,750 Views
17 Pages

Trigger Mechanisms of Gas Hydrate Decomposition, Methane Emissions, and Glacier Breakups in Polar Regions as a Result of Tectonic Wave Deformation

  • Leopold I. Lobkovsky,
  • Alexey A. Baranov,
  • Mukamay M. Ramazanov,
  • Irina S. Vladimirova and ,
  • Yurii V. Gabsatarov,
  • Igor P. Semiletov and
  • Dmitry A. Alekseev
  • + 2 authors+ 0 author

Trigger mechanisms are proposed for gas hydrate decomposition, methane emissions, and glacier collapse in polar regions. These mechanisms are due to tectonic deformation waves in the lithosphere–asthenosphere system, caused by large earthquakes...

(This article belongs to the Special Issue Permafrost and Gas Hydrate Response to Ground Temperature Rising)
  • Feature Paper
  • Article
  • Open Access
3 Citations
3,494 Views
12 Pages

Optimization of a BEGe Detector Setup for Testing Quantum Foundations in the Underground LNGS Laboratory

  • Kristian Piscicchia,
  • Alberto Clozza,
  • Diana Laura Sirghi,
  • Massimiliano Bazzi and ,
  • Nicola Bortolotti,
  • Mario Bragadireanu,
  • Michael Cargnelli,
  • Luca De Paolis,
  • Raffaele Del Grande and
  • Catalina Curceanu
  • + 19 authors+ 14 authors

In this work, we report on tests performed with an experimental apparatus prototype based on a broad-energy germanium detector aimed at investigating topical, foundational issues in quantum mechanics: i.e., possible violations of the spin-statistics...

(This article belongs to the Special Issue High Precision X-ray Measurements 2023)
  • Article
  • Open Access
20 Citations
4,478 Views
12 Pages

22 March 2022

The collapse of a cavitation bubble is always associated with the radiation of intense shock waves, which are highly relevant in a variety of applications. To radiate a strong shock wave, it is necessary to converge energy at the collapse, and unders...

(This article belongs to the Special Issue Measurement and Application of Field Heterogeneity for Effective Energy Use and Waste Treatment)
  • Article
  • Open Access
8 Citations
5,145 Views
28 Pages

3 December 2020

Gravitational-wave data (discovered first in 2015 by the Advanced LIGO interferometers and awarded by the Nobel Prize in 2017) are characterized by non-Gaussian and non-stationary noise. The ever-increasing amount of acquired data requires the develo...

(This article belongs to the Section Physical Sensors)
  • Article
  • Open Access
5 Citations
2,373 Views
14 Pages

7 November 2024

We comment on the so-called negative result experiments (also known as null measurements, interaction-free measurements, and so on) in quantum mechanics (QM), in the light of the new general understanding of the quantum-measurement processes, propose...

(This article belongs to the Special Issue Quantum Probability and Randomness V)
  • Article
  • Open Access
13 Citations
4,299 Views
14 Pages

Turbulence Generation by Shock-Acoustic-Wave Interaction in Core-Collapse Supernovae

  • Ernazar Abdikamalov,
  • César Huete,
  • Ayan Nussupbekov and
  • Shapagat Berdibek

Convective instabilities in the advanced stages of nuclear shell burning can play an important role in neutrino-driven supernova explosions. In our previous work, we studied the interaction of vorticity and entropy waves with the supernova shock usin...

(This article belongs to the Special Issue Selected Papers from “The Modern Physics of Compact Stars and Relativistic Gravity 2017”)
  • Article
  • Open Access
4 Citations
3,765 Views
23 Pages

Collapse Analysis of a Two-Span Reinforced Concrete Bridge Model

  • Yale Li,
  • Zhouhong Zong,
  • Bingwen Yang,
  • Zhanghua Xia and ,
  • Yuanzheng Lin and
  • Jin Lin
  • + 1 author+ 0 author

25 September 2021

The continuous girder bridge is the main type of small- and medium-sized bridges; however, it has poor collapse resistance and suffers frequent earthquake damage. In order to grasp its collapse mechanism and clarify the internal and external factors...

(This article belongs to the Section Civil Engineering)
  • Article
  • Open Access
1 Citations
1,129 Views
15 Pages

Nonlinear Dynamics of Cylindrical Waves in Isentropic Plasma

  • Alexander R. Karimov and
  • Grigoriy O. Buyanov

3 November 2025

Based on the hydrodynamic description, the dynamics of nonlinear cylindrical waves in an isentropic plasma are investigated. The problem is considered in an electrostatic formulation for a two-dimensional plasma medium where ions form a stationary ba...

(This article belongs to the Special Issue A Themed Issue in Honor of Professor Lennart Stenflo on the Occasion of His 85th Birthday: Plasma Physics and Nonlinear Science)
  • Article
  • Open Access
5 Citations
2,876 Views
23 Pages

26 August 2021

Classical physics is approached from quantum mechanics in the macroscopic limit. The technical device to achieve this goal is the quantum version of the central limit theorem, derived for an observable at a given time and for the time-dependent expec...

(This article belongs to the Section Foundations of Quantum Mechanics and Quantum Gravity)
  • Article
  • Open Access
16 Citations
9,055 Views
11 Pages

9 March 2017

It was first suggested by David Z. Albert that the existence of a real, physical non-unitary process (i.e., “collapse”) at the quantum level would yield a complete explanation for the Second Law of Thermodynamics (i.e., the increase in entropy over t...

(This article belongs to the Special Issue Entropy, Time and Evolution)
  • Review
  • Open Access
2 Citations
6,679 Views
137 Pages

27 February 2013

This paper is a review of our recent work on three notorious problems of non-relativistic quantum mechanics: realist interpretation, quantum theory of classical properties, and the problem of quantum measurement. A considerable progress has been achi...

(This article belongs to the Special Issue Maximum Entropy and Bayes Theorem)
  • Review
  • Open Access
1,107 Views
33 Pages

24 December 2025

Supernovae (SNe), the catastrophic end of stars’ lives, are among the most energetic phenomena in the universe. Mapping the aftermath of the explosions to the properties of pre-SN stars is challenging due to the lack of knowledge about the evol...

(This article belongs to the Special Issue A Multiwavelength View of Supernovae)
  • Article
  • Open Access
4 Citations
3,174 Views
14 Pages

20 March 2022

This paper considers turbulence effects on tsunami runup on the shore in tsunami simulations using the system of three-dimensional Navier–Stokes equations. The turbulence effects in tsunami propagation and runup are studied by solving the probl...

(This article belongs to the Special Issue Boundary Layer Processes in Geophysical/Environmental Flows)
  • Article
  • Open Access
17 Citations
3,818 Views
19 Pages

Investigating Fire Collapse Early Warning Systems for Portal Frames

  • Ming Xie,
  • Fangbo Xu,
  • Zhangdong Wang,
  • Li’e Yin and ,
  • Xiangdong Wu,
  • Mengqi Xu and
  • Xiang Li
  • + 2 authors+ 0 author

20 January 2025

In recent years, firefighter accidents and people injured by the collapse of steel structures during a fire have occurred frequently, which has attracted the attention of the National Emergency Management Department and the Fire and Rescue Bureau. It...

(This article belongs to the Section Building Structures)
  • Article
  • Open Access
6 Citations
2,043 Views
12 Pages

Langmuir Forcing and Collapsing Subsonic Density Cavitons via Random Modulations

  • Maged A. Azzam,
  • H. G. Abdelwahed,
  • Emad K. El-Shewy and
  • Mahmoud A. E. Abdelrahman

9 August 2023

Electrostatic nonlinear random Langmuir structures have been propagated in stochastic magnetospheres, clouds and solar wind. A theoretical description of Langmuir waves can be modeled by Schrödinger and Zakharov models with stochastic terms. It...

(This article belongs to the Topic Mathematical Applications of Nonlinear Wave Properties in Crystalline and Dispersive Media)
  • Article
  • Open Access
21 Citations
4,557 Views
16 Pages

14 May 2023

In this work, we performed molecular dynamics simulations to study the dynamics of a shock wave-induced single nanobubble collapsing near one flexible and two rigid boundaries. The flexible boundary consisted of polyethylene, and the rigid boundaries...

  • Article
  • Open Access
3 Citations
1,877 Views
21 Pages

Hydroelasto-Plastic Response of a Ship Model in Freak Waves: An Experimental and Numerical Investigation

  • Weiqin Liu,
  • Yining Mo,
  • Luonan Xiong,
  • Haodong Xu and ,
  • Xuemin Song and
  • Ye Li
  • + 1 author+ 0 author

5 September 2024

Freak waves have caused numerous accidents resulting in the collapse of ship structures due to structural plasticity, buckling, and instability, leading to the loss of life and property. Consequently, there is a growing academic interest in understan...

  • Proceeding Paper
  • Open Access
1 Citations
1,788 Views
9 Pages

Most of the galaxies harbor supermassive Black Holes (SMBH) in their center. Some of them are observed in very high redshifts. We explore the possibility that SMBH form from the coherent waves of Bose-Einstein condensate (BEC) which are supposed to f...

(This article belongs to the Proceedings of The 7th International Conference on New Frontiers in Physics)
  • Article
  • Open Access
4 Citations
2,618 Views
13 Pages

14 April 2021

The non-symmetrical collapse of an empty cylindrical cavity is modeled using Smoothed Particle Hydrodynamics. The presence of a nearby surface produces an anisotropic pressure field generating a high-velocity jet that hits the surface. The collapse f...

(This article belongs to the Section Mechanical Engineering)
  • Article
  • Open Access
1,797 Views
23 Pages

Study on Early Warning of Stiffness Degradation and Collapse of Steel Frame Under Fire

  • Ming Xie,
  • Fangbo Xu,
  • Xiangdong Wu,
  • Zhangdong Wang and ,
  • Li’e Yin,
  • Mengqi Xu and
  • Xiang Li
  • + 2 authors+ 0 author

2 September 2025

Frequent building fires seriously threaten the safety of steel structures. According to the data, fire accidents account for about 35% of the total number of production safety accidents. The collapse of steel structures accounted for 42% of the total...

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