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Preprint ARTICLE | doi:10.20944/preprints201701.0115.v1

A Lagrangian Approach for Computational Acoustics with Meshfree Method

Yong Ou Zhang, Stefan G. Llewellyn Smith, Tao Zhang, Tian Yun Li

Subject: Physical Sciences, Acoustics Keywords: Lagrangian approach; Lagrangian acoustic perturbation equations; computational acoustics; meshfree method; smoothed particle hydrodynamics; generalized finite difference method

Online: 25 January 2017 (11:42:54 CET)

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Preprint ARTICLE | doi:10.20944/preprints202103.0294.v1

Dynamics of Rubber Band Stretch Ejection

Xiang Li, Bohua Sun, Yi Zhang, Yuanfan Dai

Subject: Physical Sciences, Acoustics Keywords: ejection rubber band; elastodynamics; bending effect; hyperelastic materials; maple

Online: 11 March 2021 (07:38:36 CET)

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Preprint ARTICLE | doi:10.20944/preprints201712.0011.v1

Restaurant Acoustics – the Science behind Verbal Communication in Eating Establishments

Jens Holger Rindel

Subject: Physical Sciences, Acoustics Keywords: Verbal communication; Lombard effect; Cocktail party effect; Noise; Acoustic capacity; Universal design

Online: 1 December 2017 (18:22:36 CET)

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Preprint ARTICLE | doi:10.20944/preprints202102.0206.v1

Mechanics of the Gyroscopic Precession and Calculation of the Galactic Mass

Jian Sun, Tin Xu, Zheng Jiao, Hui Wang

Subject: Physical Sciences, Acoustics Keywords: precession; galactic mass

Online: 8 February 2021 (12:36:46 CET)

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Preprint ARTICLE | doi:10.20944/preprints201707.0048.v1

An Alternative Approach to Estimate the Vacuum Energy Density of Free Space

Vernon Cooray, Gerald Cooray, Farhad Rachidi

Subject: Physical Sciences, Acoustics Keywords: expansion of the universe; vacuum energy; dark energy; time energy uncertainty principle; radius of the universe

Online: 18 July 2017 (12:18:16 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202103.0311.v1

Spaghetti Breaking Dynamics

Yi Zhang, Xiang Li, Yuanfan Dai, Bohua Sun

Subject: Physical Sciences, Acoustics Keywords: curvature; brittle cracking; elastic rod; diameter-to-length ratio; spaghetti

Online: 11 March 2021 (11:00:55 CET)

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Preprint ARTICLE | doi:10.20944/preprints201611.0052.v1

Feature Extraction of Ship Radiated Noise Based on Permutation Entropy of the Intrinsic Mode Function with the Highest Energy

Yu-Xing Li, Ya-An Li, Zhe Chen, Xiao Chen

Subject: Physical Sciences, Acoustics Keywords: empirical mode decomposition; intrinsic mode function; permutation entropy; multi-scale permutation entropy; feature extraction

Online: 9 November 2016 (10:24:35 CET)

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Preprint ARTICLE | doi:10.20944/preprints201809.0181.v1

Design of Acoustical Bessel-Like Beam Formation by Tunable Angular Spectrum in Soret Zone Plate Lens

Daniel Tarrazó-Serrano, Sergio Castiñeira-Ibáñez, Oleg V. Minin, Pilar Candelas, Constanza Rubio, Igor V. Minin

Subject: Physical Sciences, Acoustics Keywords: ultrasonic lens; apodization; Soret zone plate

Online: 11 September 2018 (04:40:19 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202011.0388.v1

Gamma-Divergence. An Introduction to New Divergence Family

Leonardo Riveaud, Mateos Diego, Pedro Walter Lamberti

Subject: Physical Sciences, Acoustics Keywords: Information Theory; Entropy; Divergence; Divergence families

Online: 13 November 2020 (15:45:32 CET)

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Preprint REVIEW | doi:10.20944/preprints202007.0521.v2

Recent Advances in Acoustic Metamaterials for Simultaneous Sound Attenuation and Air Ventilation Performances

Sanjay Kumar, Heow Pueh Lee

Subject: Physical Sciences, Acoustics Keywords: acoustic metamaterials; Sound attenuation; Air ventilation; Acoustic resonance

Online: 27 July 2020 (11:51:22 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201708.0037.v1

Lagrangian Meshfree Particle-based Computational Acoustics for Two-dimensional Sound Propagation and Scattering Problems

Yong Ou Zhang, Xu Li, Tao Zhang

Subject: Physical Sciences, Acoustics Keywords: meshfree method; particle-based computational acoustics; smoothed particle hydrodynamics; corrective smoothed particle method; boundary conditions; Lagrangian approach

Online: 10 August 2017 (05:20:33 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202102.0157.v1

Derivation of Generalized Einstein's Equations of Gravitation in Some Non-Inertial Reference Frames Based on the Theory of Vacuum Mechanics

Xiao-Song Wang

Subject: Physical Sciences, Acoustics Keywords: Einstein's equations; gravitation; general relativity; principle of equivalence; gravitational aether; vacuum mechanics.

Online: 5 February 2021 (11:11:36 CET)

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Preprint ARTICLE | doi:10.20944/preprints202108.0191.v1

Theoretical Calculation of Wind (Or Water) Turbine: Extending the Betz Limit

Pierre Lecanu, joel Breard, Dominique Mouaze, Bertil Smorgrav

Subject: Physical Sciences, Acoustics Keywords: n/a; wind turbine; tidal turbine; betz limit; Betz's law; HAWT; VAWT; potential energy; kinetic energy

Online: 9 August 2021 (12:09:05 CEST)

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Preprint COMMUNICATION | doi:10.20944/preprints202104.0447.v1

Answers to Fundamental Questions in Superresolution Microscopy

Rainer Heintzmann

Subject: Physical Sciences, Acoustics Keywords: optics; resolution; superresolution; Ernst Abbe; structured illumination; non-linear; image scanning microscopy; total internal reflection; MINFLUX; localization microscopy

Online: 16 April 2021 (14:45:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202104.0350.v1

The Gateway to Parallel Universe & Connected Physics

Deep Bhattacharjee

Subject: Physical Sciences, Acoustics Keywords: Singularity; 2-Time dimensions; Simulations; Big Bang; Entanglement; Entropy; Mandela Effect; Eternal Inflation; Multiverse

Online: 13 April 2021 (11:47:13 CEST)

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Working Paper ARTICLE

Mechanics of the Gyroscopic Precession and Calculation of the Galactic Mass

Jian Sun, Ting Xu, Zheng Jiao, Hui Wang

Subject: Physical Sciences, Acoustics Keywords: gyroscopic precession; solar system; galactic mass

Online: 25 May 2021 (11:16:16 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202101.0558.v1

Investigating the Gap between Research and Practice in Additive Manufacturing

Jennifer Bracken, Zachary Bentley, James Meye, Erik Miller, Jablokow Kathryn W., Simpson Timothy, Meisel Nicholas

Subject: Physical Sciences, Acoustics Keywords: Additive Manufacturing; Design

Online: 27 January 2021 (12:31:24 CET)

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Preprint ARTICLE | doi:10.20944/preprints202106.0015.v1

Lumos: A Python Instrument Control Library for Photonics

Akhilesh S. P. Khope

Subject: Physical Sciences, Acoustics Keywords: Photonics; Testing; Integrated Photonic Switches; Photonic Integrated Circuits

Online: 1 June 2021 (10:03:07 CEST)

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Working Paper ARTICLE

Dimensionality, Fibonacci Numbers & Quantum Physics

Christopher O'Neill

Subject: Physical Sciences, Acoustics Keywords: Fibonacci numbers; the Golden Ratio; the Golden Mean; dimensionality; quasiparticles; anions; non-Abelian; Fibonacci; excitations; Dimensional Gate Operators

Online: 22 February 2021 (15:21:52 CET)

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Preprint ARTICLE | doi:10.20944/preprints201710.0089.v1

A Novel Approach to Monitor the Curing of Composite Materials in Closed Tools by the Use of Ultrasonic Spectroscopy

Christian Pommer, Michael Sinapius

Subject: Physical Sciences, Acoustics Keywords: ultrasonic; cure monitoring; resonant ultrasonic spectroscopy

Online: 13 October 2017 (10:37:45 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202101.0459.v1

The Effect of Print Speed on Surface Roughness and Density Uniformity of Parts Produced Using Binder Jet 3D Printing

K. Myers, A. Paterson, T. Iizuka, A. Klein

Subject: Physical Sciences, Acoustics Keywords: Additive Manufacturing; Binder Jetting

Online: 25 January 2021 (09:22:30 CET)

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Preprint ARTICLE | doi:10.20944/preprints201802.0032.v1

An Inverse Aeroacoustic Problem with Aerodynamic Constraint for a Helicopter Rotor

Qinghe Zhao, Xiaodong Li

Subject: Physical Sciences, Acoustics Keywords: inverse acoustic problem; helicopter rotor; Ffowcs Williams and Hawkings equation; aerodynamic constraint; Thikhonov method

Online: 5 February 2018 (11:34:30 CET)

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Preprint ARTICLE | doi:10.20944/preprints202102.0212.v1

Increasing the Quality Factor (Q) of 1D Photonic Crystal Cavity with an End Loop-Mirror

Mohamad Hazwan Haron, Ahmad Rifqi Md Zain, Burhanuddin Yeop Majlis

Subject: Physical Sciences, Acoustics Keywords: Photonic crystal cavity; High Q-factor; loss reduction; SOI

Online: 8 February 2021 (13:25:38 CET)

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Preprint ARTICLE | doi:10.20944/preprints201901.0248.v1

Multiple-Layer Microperforated Panels as Sound Absorbers in Buildings: A Review

Pedro Cobo, Francisco Simón

Subject: Physical Sciences, Acoustics Keywords: sound absorption; microperforated panels; multilayer systems

Online: 24 January 2019 (08:43:22 CET)

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Working Paper ARTICLE

Rethinking the Foundation of Physics and its Relation to Quantum Gravity and Quantum Probabilities: Unification of Gravity and Quantum Mechanics

Espen Haug

Subject: Physical Sciences, Acoustics Keywords: quantum mechanics; quantum probability; de Broglie wavelength; Compton wavelength; gravity; quantum gravity

Online: 24 December 2020 (11:45:05 CET)

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In this paper we will show that standard physics to a large degree consists of derivatives of a deeper reality. This means standard physics is both overly complex and also incomplete. Modern physics has typically started from working with first understanding the surface of the world, that is typically the macroscopic world, and then forming theories about the atomic and subatomic world. And we did not have much of a choice, as the subatomic world is very hard to observe directly, if not impossible to observe directly at the deepest level. Despite the enormous success of modern physics, it is therefore no big surprise that we at some point have possibly taken a step in the wrong direction. We will claim that one such step came when one thought that the de Broglie wavelength represented a real matter wavelength. We will claim that the Compton wavelength is the real matter wavelength. Based on such a view we will see that many equations in modern physics are only derivatives of much simpler relations. Second, we will claim that in today’s physics one uses two different mass definitions, one mass definition that is complete or at least more complete, embedded in gravity equations without being aware of it, as it is concealed in GM, and the standard, but incomplete, kg mass definition in non-gravitational physics. First, when this is understood, and one uses the more complete mass definition that is embedded in gravity physics, not only in gravity physics, but in all of physics, then one has a chance to unify gravity and quantum mechanics. Our new theory shows that most physical phenomena when observed over a very short timescale are probabilistic for masses smaller than a Planck mass and dominated by determinism at or above Planck mass size. Our findings have many implications. For example, we show that the Heisenberg uncertainty principle is rooted in a foundation not valid for rest-mass particles, so the Heisenberg uncertainty principle can say nothing about rest-masses. When re-formulated based on a foundation compatible with a new momentum that is also compatible with rest-masses, we obtain a re-defined Heisenberg principle that seems to become a certainty principle in the special case of a Planck mass particle. Furthermore, we show that the Planck mass particle is linked to gravity and that we can easily detect the Planck scale from gravity observations. The Planck mass particle is unique as it only lasts the Planck time, and in that very short time period it can only be observed directly from itself, and it therefore closely linked to absolute rest.

Preprint ARTICLE | doi:10.20944/preprints202011.0172.v1

Experimental Supersymmetry

Richard L Amoroso

Subject: Physical Sciences, Acoustics Keywords: Dirac hypertube; Dirac polarized vacuum; M-theory; manifold of uncertainty; nonlocality; semi-quantum limit; supersymmetry; tight bound states, unified field theory

Online: 4 November 2020 (08:08:03 CET)

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Preprint ARTICLE | doi:10.20944/preprints202011.0201.v2

Maxwell Equations for Material Systems, Version 2

Robert Eisenberg

Subject: Physical Sciences, Acoustics Keywords: Maxwell Equations; Dielectric; Diffusion; Conservation of Current

Online: 9 December 2020 (18:27:11 CET)

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The Maxwell equations of electrodynamics describe electrical and magnetic forces with great accuracy in the vacuum of space. But the equations of electrodynamics applied to material systems are usually written in a way that obscures their accuracy. The usual formulation of the Maxwell equations includes a dielectric constant as a single real number that grossly over-approximates the actual properties of matter, particularly liquid matter so important in applications of electrodynamics to biology and chemistry. We rewrite two Maxwell equations here to make clear the precision of the Maxwell equations in the presence or absence of matter. We discuss and derive two well known corollaries that are as universal and precise as the Maxwell equations themselves: (1) a continuity equation that relates charge and flux and (2) a conservation equation in which total current never accumulates at all. The total current is the right hand side of the Ampere-Maxwell law. Total current is perfectly incompressible. It is conserved exactly, everywhere and at every time, independent of the microphysics of charge conduction. The total current combines the flux of charges and the ethereal current. The ethereal current \varepsilon_{o\ }\sfrac{\partial\mathbf{E}}{\partial t}\ exists everywhere, including the interior of atoms, because it is a property of space, not matter. The ethereal current exists, and thus flows, in a vacuum devoid of mass. The ethereal current is a consequence of the relativistic (Lorentz) invariance of charge. Charge does not change even if it moves at speeds approaching the velocity of light. Total current has properties quite distinct from flux of mass because of the ethereal current. Most strikingly, in the one dimensional unbranched systems of electronic circuits and biological ion channels, the total current is independent of location, even if the flux of charges varies a great deal. Indeed, the Maxwell equations—and thus conservation of total current—act as a perfect low pass spatial filter, converting the infinite variation of (the Brownian model of) thermal motion of charges to the zero variation of the total current.

Preprint ARTICLE | doi:10.20944/preprints201805.0392.v1

Acoustic Parametric Signal Generation for Underwater Communication

María Campo-Valera, Miguel Ardid, Dídac D. Tortosa, Ivan Felis, Juan A. Martínez-Mora, Carlos D. Llorens, Pablo Cervantes

Subject: Physical Sciences, Acoustics Keywords: underwater acoustic communication; parametric technique; self-demodulation

Online: 28 May 2018 (09:42:15 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202010.0319.v1

An Fusion of Whale and Sine Cosine Algorithms for solving optimization Functions

Gurjeet Singh Walia, Narinder Singh, Sharandeep Singh

Subject: Physical Sciences, Acoustics Keywords: function optimization; benchmark function; Whale Optimization (WO); Sine Cosine (SC) Algorithm

Online: 15 October 2020 (11:33:27 CEST)

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Preprint REVIEW | doi:10.20944/preprints202010.0035.v1

Photopolymerization Mechanisms at a Spatio-temporally Ultra-confined Light

Edvinas Skliutas, Miglė Lebedevaite, Elmina Kabouraki, Tommaso Baldacchini, Jolita Ostrauskaite, Maria Vamvakaki, Maria Farsari, Saulius Juodkazis, Mangirdas Malinauskas

Subject: Physical Sciences, Acoustics Keywords: Photopolymerization; Additive manufacturing; Ultrafast laser; Multiphoton lithography; Laser 3D nanolithography; Nanoscale; Organic and hybrid materials; Bio-derived materials; Functional 3D structures; Advanced material engineering

Online: 2 October 2020 (09:30:53 CEST)

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Preprint CONCEPT PAPER | doi:10.20944/preprints202010.0161.v1

A Knowledge Representation of the Miller-Urey Experiment

Javier Burgos

Subject: Physical Sciences, Acoustics Keywords: preconditions of life; Miller Urey experiment; knowledge representation; ontology log; universality

Online: 7 October 2020 (16:10:50 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202012.0603.v1

The Arithmetic of Uncertainty unifies Quantum Formalism and Relativistic Spacetime

John Skilling, Kevin Knuth

Subject: Physical Sciences, Acoustics Keywords: quantum foundations; foundations of physics; relativistic spacetime; uncertainty; 3+1 dimensions

Online: 23 December 2020 (18:12:47 CET)

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Preprint ARTICLE | doi:10.20944/preprints201804.0148.v1

Moving Source Depth Estimation Using a Horizontal Line Array in Shallow Water Waveguides

Liang Guolong, Zhang Yifeng, Zou Nan, Wang Jinjin

Subject: Physical Sciences, Acoustics Keywords: modal wave-number spectrum; match mode; horizontal line array; moving source

Online: 11 April 2018 (12:42:57 CEST)

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Preprint DATA DESCRIPTOR | doi:10.20944/preprints202103.0703.v1

Effectiveness of Developed Instructional Module on the Enhancement of Learners Academic Achievements in Physics

Cherry Rose Malgapo

Subject: Physical Sciences, Acoustics Keywords: instructional module; effectiveness; learning competencies; Physics

Online: 29 March 2021 (14:49:58 CEST)

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Preprint REVIEW | doi:10.20944/preprints202007.0521.v1

Recent Advances in Acoustic Metamaterials for Simultaneous Sound Attenuation and Air Ventilation Performances

Sanjay Kumar, Heow Lee

Subject: Physical Sciences, Acoustics Keywords: acoustic metamaterials; Sound attenuation; Air ventilation; Acoustic resonance

Online: 22 July 2020 (11:19:36 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202005.0250.v8

Early Universe Plasma Separation and the Creation of a Dual Universe

Mohammed B. Al-Fadhli

Subject: Physical Sciences, Acoustics Keywords: Plasma; accelerated expansion; parallel universe; duality; antimatter

Online: 17 December 2020 (11:45:26 CET)

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Preprint CONCEPT PAPER | doi:10.20944/preprints202102.0412.v1

A Universe Without Matter: The Processing of Information/Energy through Discontinuous Space Cells in Two Models; a Computer Simulation, or a Self-Replicating Substrate of Space Cells

David Reardon

Subject: Physical Sciences, Acoustics Keywords: space-time lattice; simulation hypothesis; grand unifying theory; foundations of physics; quantum information theory; relational quantum theory

Online: 18 February 2021 (11:13:58 CET)

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Preprint ARTICLE | doi:10.20944/preprints202105.0085.v1

Effect of LI Concentration on the Structural and Optical Properties of Co₁-xLixCr₂O₄ Chromate Nanoparticles Prepared By Sol-Gel Method

Muhammad Saeed, Malika Rani, Kiran Batool, Hafiza Batool, Aisha Younus, Sikander Azam, Arshad Mehmood, Bakhtiarul Haq, Thamraa Alshahrani, Muhammad Maqbool

Subject: Physical Sciences, Acoustics Keywords: Sol gel process; Pigments; Cobalt Chromate; Nanoparticles; Synthesis; Lithium,

Online: 6 May 2021 (13:05:13 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202106.0186.v1

Ultralow Loss Adiabatic Microring Resonator With Thermal Tuning

Akhilesh S. P. Khope

Subject: Physical Sciences, Acoustics Keywords: Microring Resonators; Photonic Integrated Circuits; Optical Switching Devices; Silicon Photonics

Online: 7 June 2021 (14:06:07 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202010.0537.v1

A Study on the Development of Cranial Traction Therapy Program for Facial Non-Symmertric Correction -Utilize Delphi Technique

Hea-Ju Hwang

Subject: Physical Sciences, Acoustics Keywords: Cranial Traction Therapy; Correcting Facial Asymmerty

Online: 27 October 2020 (07:58:12 CET)

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Preprint ARTICLE | doi:10.20944/preprints202011.0176.v1

An Ultra-high-Q lithium Niobate Microresonator Integrated with a Silicon Nitride Waveguide in the Vertical Configuration for Evanescent Light Coupling

Jianhao Zhang, Rongbo Wu, Min Wang, Youting Liang, Junxia Zhou, Miao Wu, Zhiwei Fang, Wei Chu, Ya Cheng

Subject: Physical Sciences, Acoustics Keywords: lithium niobate microring resonator; silicon nitride waveguide; photolithography assisted chemo-mechanical etching

Online: 4 November 2020 (08:45:06 CET)

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Preprint ARTICLE | doi:10.20944/preprints202101.0214.v1

The Dead-Alive Physicist Gedankenexperiment Debunked

Amal Pushp

Subject: Physical Sciences, Acoustics Keywords: Quantum Superposition; Interpretations of Quantum Mechanics; State Vector Reduction; Measurement Problem; von Neumann Interpretation

Online: 12 January 2021 (10:28:53 CET)

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Preprint ARTICLE | doi:10.20944/preprints202107.0529.v1

Photoacoustic Imaging for Periodontal Disease Examination

Mitrayana Mitrayana, Atika Windra Sari, Rini Widyaningrum

Subject: Physical Sciences, Acoustics Keywords: diode laser, imaging, periodontal, photoacoustic.

Online: 23 July 2021 (08:10:44 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202102.0295.v1

Sintering of Mg and its Alloys under Hydrogen Atmospheres

Johannes Schaper

Subject: Physical Sciences, Acoustics Keywords: Sintering; light alloys

Online: 12 February 2021 (09:26:58 CET)

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Preprint ARTICLE | doi:10.20944/preprints202105.0771.v1

Measurement of Ankle Joint Movements using IMUs during Running

Byonghun Kim, Sunghyun Hong, Inwook Oh, Yangwoo Lee, Inho Kee, Saeyong Lee

Subject: Physical Sciences, Acoustics Keywords: Validation; Kinematic; Inertial measurement units; motion analysis; gait

Online: 31 May 2021 (12:47:51 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202101.0061.v1

Climate Change Adaptation on Small Island States: An Assessment of Limits and Constraints

Walter Leal Filho, Murukesan Krishnapillai, Henry Sidsaph, Gustavo J. Nagy, Johannes M. Luetz, Jack Dyer, Michael Otoara Ha’apio, Peni Hausia Havea, Kushaal Raj, Priyatma Singh, Tom Rogers, Chunlan Li, Ksenia Chmutina, Monica K. Boodhan, Franziska Wolf, Desalegn Yayeh Ayal, Hossein Azadi

Subject: Physical Sciences, Acoustics Keywords: limits; adaptation; small island developing states; impacts; sustainable development; policy-making

Online: 4 January 2021 (16:26:11 CET)

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Preprint ARTICLE | doi:10.20944/preprints202012.0215.v1

Scaling Law for the Velocity of Domino Toppling Motion in Curved Paths

Guang-Kai Song, Xiao-Lin Guo, Bo-Hua Sun

Subject: Physical Sciences, Acoustics Keywords: Scaling law; velocity; domino toppling motion; curved paths

Online: 9 December 2020 (10:24:23 CET)

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Working Paper ARTICLE

Systematic Interferometric Phase Biases and Their Impact on Earth Surface Deformation Monitoring

Homa Ansari, Francesco De Zan, Alessandro Parizzi

Subject: Physical Sciences, Acoustics Keywords: SAR Interferometry; Accuracy; Big Data; Deformation Monitoring, Sentinel-1; Fading Signal; Signal Decorrelation

Online: 27 October 2020 (15:26:30 CET)

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Preprint ARTICLE | doi:10.20944/preprints202005.0250.v7

On Spacetime Duality and Bounce Cosmology of a Dual Universe

Mohammed B. Al-Fadhli

Subject: Physical Sciences, Acoustics Keywords: Accelerated expansion; fast-rotation; flatness; parallel universe; duality; antimatter

Online: 13 October 2020 (09:38:38 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202012.0500.v1

Hyperedge Entanglement in High-Order Multilayer Networks

Alessandro Muscoloni, Ilyes Abdelhamid, Julius L. Decano, Edwin Souza, Enrico Maiorino, Masanori Aikawa, Edwin K. Silverman, Amitabh Sharma, Carlo Vittorio Cannistraci

Subject: Physical Sciences, Acoustics Keywords: complex multilayer networks; hypergraphs; complex systems

Online: 21 December 2020 (10:44:19 CET)

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Preprint ARTICLE | doi:10.20944/preprints202105.0370.v1

Quantum Theory Without Classical Time: Octonions, and a Theoretical Derivation of the Fine Structure Constant 1/137

TEJINDER P. SINGH

Subject: Physical Sciences, Acoustics Keywords: Quantum theory; Octonions; Fine structure constant; Trace dynamics; Standard model; Non-commutative geometry

Online: 17 May 2021 (07:56:36 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202106.0687.v1

Automatic Speech Recognition (ASR) Systems Applied to Pronunciation Assessment of L2 Spanish for Japanese Speakers

Cristian Tejedor-García, Valentín Cardeñoso-Payo, David Escudero-Mancebo

Subject: Physical Sciences, Acoustics Keywords: automatic speech recognition (ASR); automatic assessment tools; foreign language pronunciation; pronunciation training; computer-assisted pronunciation training (CAPT); automatic pronunciation assessment; learning environments; minimal pairs

Online: 29 June 2021 (07:31:41 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202010.0595.v1

On the Effectiveness of Bayesian AutoML methods for Physics Emulators

Peetak Mitra, Niccolò Dal Santo, Majid Haghshenas, Shounak Mitra, Conor Daly, David P. Schmidt

Subject: Physical Sciences, Acoustics Keywords: Bayesian Optimization; Machine Learning; Neural Architecture Search; Fluid Turbulence

Online: 28 October 2020 (14:51:15 CET)

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Preprint ARTICLE | doi:10.20944/preprints202102.0299.v1

A Graph-Theoretic Approach to Understanding Emergent Behavior in Physical Systems

Alyssa Adams

Subject: Physical Sciences, Acoustics Keywords: Emergence; Ising Model; Information; Computation; State Space

Online: 12 February 2021 (11:11:50 CET)

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Preprint ARTICLE | doi:10.20944/preprints202011.0182.v1

Accessible Statistical Regression, Extrapolation and First-Principles Modelling of Nuclear Data for Spent Nuclear Fuel Composition and Decay Heat Calculations in Short-Term Storage and Recycling

Alistair Holdsworth, Clint Sharrad, Kathryn George, Samuel Adams

Subject: Physical Sciences, Acoustics Keywords: Spent Nuclear Fuel; Nuclear Fuel Cycle; Spent Fuel Storage; Spent Fuel Reprocessing; Modelling; Decay Heat; Isotopic Composition; Elemental Composition; Statistical Analysis; First Principles

Online: 4 November 2020 (09:57:42 CET)

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Preprint ARTICLE | doi:10.20944/preprints202010.0595.v2

On the Effectiveness of Bayesian AutoML methods for Physics Emulators

Peetak Mitra, Niccolò Dal Santo, Majid Haghshenas, Shounak Mitra, Conor Daly, David P. Schmidt

Subject: Physical Sciences, Acoustics Keywords: Bayesian Optimization; Machine Learning; Neural Architecture Search; Fluid Turbulence

Online: 3 December 2020 (10:51:21 CET)

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Preprint ARTICLE | doi:10.20944/preprints202104.0079.v1

CdTe X/γ-ray Detectors With Different Contact Materials

Volodymyr Gnatyuk, Olena Maslyanchuk, Mykhailo Solovan, Viktor Brus, Toru Aoki

Subject: Physical Sciences, Acoustics Keywords: CdTe detectors; X-ray and gamma ray spectroscopy; Schottky contact; p-n junction; charge transport mechanism

Online: 2 April 2021 (18:15:52 CEST)

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Preprint BRIEF REPORT | doi:10.20944/preprints202101.0127.v1

Wave-Like Properties of Time

Goutam Kumar Chandra

Subject: Physical Sciences, Acoustics Keywords: Tools and Metrology; Time and Frequency; Philosophy of Science; Special Relativity; Semiconductors

Online: 6 January 2021 (15:09:15 CET)

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Preprint REVIEW | doi:10.20944/preprints202012.0009.v1

Review of Fresnel Incoherent Correlation Holography with Linear and Non-Linear Correlations

Vijayakumar Anand, Tomas Katkus, Soon Hock Ng, Saulius Juodkazis

Subject: Physical Sciences, Acoustics Keywords: Holography; diffractive optics; incoherent optics; Fresnel incoherent correlation holography; Imaging; speckle

Online: 1 December 2020 (09:55:45 CET)

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Preprint CONCEPT PAPER | doi:10.20944/preprints202106.0505.v1

Attenuated Total Reflection at THz Wavelengths: Peculiarities of Total Internal Reflection and Polariscopy

Meguya Ryu, Soon Hock Ng, Vijayakumar Anand, Stefan Lundgaard, Jingwen Hu, Tomas Katkus, Dominique Appadoo, Zoltan Vilagosh, Andrew Wood, Saulius Juodkazis, Junko Morikawa

Subject: Physical Sciences, Acoustics Keywords: ATR, THz, synchrotron radiation, diagnostics, polariscopy, four polarisation method

Online: 21 June 2021 (11:28:36 CEST)

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Preprint CONCEPT PAPER | doi:10.20944/preprints202011.0413.v1

Quantum Web of Gravity

Eugene Machusky

Subject: Physical Sciences, Acoustics Keywords: Quantum metrics; Quantum Information processing; Informational entropy.

Online: 16 November 2020 (11:09:51 CET)

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Preprint ARTICLE | doi:10.20944/preprints202010.0562.v1

On the Thermodynamic Origin of the Uncertainty Principle

Jay R. Yablon

Subject: Physical Sciences, Acoustics Keywords: entropy; statistical thermodynamics; uncertainty principle; Bekenstein bound; Hawking radiation; blackbody radiation; Wein displacement law; black holes; second law of thermodynamics; general relativity and quantum mechanics unification

Online: 27 October 2020 (20:25:19 CET)

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Working Paper ARTICLE

Quantum Optical Aspects of High-Harmonic Generation

Sándor Varró

Subject: Physical Sciences, Acoustics Keywords: generation of high harmonics; attosecond pulses; nonrelativistic quantum electrodynamics; strong laser field–matter interactions; quantum optics; nonclassical photon states

Online: 18 June 2021 (16:03:20 CEST)

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Working Paper ARTICLE

Shadow of Topologically Charged Rotating Braneworld Black Hole

Hao-Ran Zhang, He-Xu Zhang, Yuan Chen, Peng-Zhang He, Jian-Bo Deng

Subject: Physical Sciences, Acoustics Keywords: rotating braneworld black hole; black hole shadow; the photon region

Online: 30 September 2020 (12:14:17 CEST)

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Preprint REVIEW | doi:10.20944/preprints202103.0381.v1

The Advancement in Magnetic Nanoparticles for the Diagnosis of Lung Cancer and Its Monitoring

Ayushi Rastogi, Fanindra Pandey, Pankaj Kumar Tripathi, Rajiv Manohar, Shri Singh

Subject: Physical Sciences, Acoustics Keywords: Lung Cancer; Magnetic nanoparticles; Detection and monitoring; Theranostics

Online: 15 March 2021 (12:55:08 CET)

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Working Paper ARTICLE

Design and Demonstration of Compact, High Bandwidth Optical Mode Selective Devices by Realizing ITO-Based Controllable Phase Shifters Integrated on Silicon-on-Insulator Waveguides

Cao Dung Truong, Hai Ta Duy, Duy Nguyen Thi Hang, Thuy Tran Thi Thanh, Duy Duong Quang, Hoang Chu Duc

Subject: Physical Sciences, Acoustics Keywords: co-design; ITO; thermo-optic phase shifter; mode selective converter; mode selective router; numerical simulation

Online: 14 April 2021 (10:13:38 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202101.0305.v1

Geological Heritage of Syros Island, Cyclades Complex, Greece: A New Assessment and Geotourism Perspectives

Hara Drinia, Theodora Tsipra, George Panagiaris, Marios Patsoules, Christina Papantoniou, Andreas Magganas

Subject: Physical Sciences, Acoustics Keywords: Geosite; geotourism; Syros island; metamorphic rocks; subduction zone; sustainable development

Online: 18 January 2021 (09:08:12 CET)

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Preprint ARTICLE | doi:10.20944/preprints202102.0372.v1

Cosmology of Barrow Holographic Dark Energy as Nojiri-Odintsov Holographic Dark Energy with Specific Cut-off and the Thermodynamics

Gargee Chakraborty, Surajit Chattopadhyay, Ertan Güdekli, Irina Radinschi

Subject: Physical Sciences, Acoustics Keywords: Barrow holographic dark energy; bulk viscosity; thermodynamics

Online: 17 February 2021 (10:16:52 CET)

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Preprint ARTICLE | doi:10.20944/preprints202104.0321.v2

The Design of Tunable Photonic Crystal Biosensor With the Integration of PN Phase Shifter Using PIC Design Approach

Mohamad Hazwan Haron, Dilla Duryha Berhanuddin, Sahbudin Shaari, Burhanuddin Yeop Majlis, Ahmad Rifqi Md Zain

Subject: Physical Sciences, Acoustics Keywords: Photonic compact model; silicon photonic integrated circuit (PIC); photonic crystal cavity refractive index sensor; tunable sensing circuit; photonic layout rules

Online: 26 April 2021 (13:39:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201903.0261.v1

Entropy of Reissner-Nordström 3D Hole in Roegenian Economics

Constantin Udriste, Massimiliano Ferrara, Ionel Tevy, Dorel Zugravescu, Florin Munteanu

Subject: Physical Sciences, Acoustics Keywords: thermodynamics-economics dictionary; economic Einstein 4D PDEs; economic Schwarzschild type metric; economic 3D black holes; economic entropy

Online: 28 March 2019 (09:43:56 CET)

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Preprint REVIEW | doi:10.20944/preprints202010.0141.v1

Mirrors for Space Telescopes: Degradation Issues

Denis Garoli, Luis V. Rodriguez de Marcos, Juan I. Larruquert, Alain J. Corso, Remo Proietti Zaccaria, Maria G. Pelizzo

Subject: Physical Sciences, Acoustics Keywords: space optics; mirrors; coatings; radiation; thin film; multilayer; degradation; contamination; optical systems

Online: 6 October 2020 (16:10:07 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202101.0497.v1

Process Integrated Production of WC-Co Tools with Local Cobalt Gradient Fabricated by Binder Jetting

Maja Lehmann, Michael Zaeh

Subject: Physical Sciences, Acoustics Keywords: Additive Manufacturing; Binder Jetting

Online: 25 January 2021 (13:08:05 CET)

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Preprint ARTICLE | doi:10.20944/preprints202102.0258.v1

D-Dimensional f(R,φ) Gravity

Mostafa Bousder

Subject: Physical Sciences, Acoustics Keywords: f(R) gravity; gravity; Gauss-Bonnet gravity

Online: 10 February 2021 (12:59:54 CET)

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Preprint ARTICLE | doi:10.20944/preprints202101.0017.v2

Oscillating Universe with a Quantized Black Hole

Sascha Kulas

Subject: Physical Sciences, Acoustics Keywords: Oscillating universe; big bang; big bounce; Hubble constant; dark energy; dark matter; inflation; vacuum energy density; Casimir effect

Online: 15 January 2021 (09:47:00 CET)

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Preprint ARTICLE | doi:10.20944/preprints202106.0703.v1

Bell-Inequality and Two Slit Experiments: Comparing Misapplication of Classical Probability by Feynman and Bell

Andrei Khrennikov

Subject: Physical Sciences, Acoustics Keywords: Feynman, Bell, Ballentine, Koopman, two slit experiment, Bell type experiments, classical probability theory, Kolmogorov, conditional versus unconditional probability

Online: 29 June 2021 (12:50:11 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202106.0428.v1

Coupled WGMs in a Dielectric Microsphere: Proof-of-Concept of Optical Pressure Microsensor

Igor Minin, Oleg Minin, Yuri Geints

Subject: Physical Sciences, Acoustics Keywords: whispering gallery modes; microsphere; membrane; pressure sensor; optical interference

Online: 16 June 2021 (09:28:30 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202105.0743.v1

Applications of PERALS-Alpha Spectrometry for the Investigation of Radionuclides in Water Samples

Markus Raymond Zehringer, Franziska Kammerer, Anja Pregler

Subject: Physical Sciences, Acoustics Keywords: PERALS; alpha spectrometry; Polonium; Radon; Radium; Radiostrontium; Thorium; Uranium; Actinides

Online: 31 May 2021 (11:16:23 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202012.0480.v1

X-Band/C-Band-Comparison of Ship Wake Detectability

Björn Tings, Sven Jacobsen, Stefan Wiehle, Egbert Schwarz, Holger Daedelow

Subject: Physical Sciences, Acoustics Keywords: Synthetic Aperture Radar; wake detection; detectability model; machine learning; Support Vector Machine; ocean surface imaging

Online: 18 December 2020 (16:23:03 CET)

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Preprint ARTICLE | doi:10.20944/preprints202104.0494.v1

Deformation and Stress Analysis of Catenary Shell of Revolution

Bohua Sun

Subject: Physical Sciences, Acoustics Keywords: Catenary; surface of revolution; Gauss curvature; minimal surface; shells; deformation; stress; Maple

Online: 19 April 2021 (14:03:24 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202012.0114.v1

Registration of Reactions Occurring From the Emergence of a Virus by Using an Electromagnetic Charge Effect

Ognyan Ivanov, Konstantin Simeonov, Petar Todorov, Desislava Antonova, Viktor Pulis

Subject: Physical Sciences, Acoustics Keywords: sensor; virus; detection; electromagnetic echo effect

Online: 4 December 2020 (14:36:35 CET)

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Preprint ARTICLE | doi:10.20944/preprints202011.0041.v1

Negative-Curvature Spacetime Solutions for Graphene

Antonio Gallerati

Subject: Physical Sciences, Acoustics Keywords: negative-curvature spacetime; field theories in lower dimensions; graphene theoretical physics

Online: 2 November 2020 (13:24:36 CET)

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Preprint ARTICLE | doi:10.20944/preprints202101.0076.v5

Unification of the Electromagnetic Force and Gravity through the Composite Photon

Ian Clague

Subject: Physical Sciences, Acoustics Keywords: Unification; Composite Photon; Negative Mass; Antimatter; Grand Unification Theory, Dark Energy, Dark Matter

Online: 26 May 2021 (13:07:03 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202103.0110.v1

A Statistical Inference of the Principle of Maximum Entropy Production

Martijn Veening

Subject: Physical Sciences, Acoustics Keywords: entropy production maximization; complexity; thermodynamics; nonlinear dynamics; statistical mechanics; autopoiesis; entropy; entropy production; life

Online: 2 March 2021 (16:53:04 CET)

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Preprint ARTICLE | doi:10.20944/preprints202102.0199.v1

Sub-Millisecond Integrated Mix-and-Inject Microfluidic Sample Delivery Devices

Majid Hejazian, Eugeniu Balaur, Brian Abbey

Subject: Physical Sciences, Acoustics Keywords: Microfluidics; Micro-Jet; Sub-millisecond mixing; Simulation; Sample delivery for XFEL

Online: 8 February 2021 (12:12:47 CET)

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Working Paper ARTICLE

Development of Laser Ablation Method for Fabrication of Surface Acoustic Wave Sensors by Using Micro Electric Mechanical System Theory (MEMS)

Ahmed Soliman, Alexander Kukae

Subject: Physical Sciences, Acoustics Keywords: sensor, acoustic wave, MEMS, laser ablation

Online: 25 April 2019 (15:09:38 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202008.0577.v2

New Quantum Diodes with Superconducting Properties at Non-Freezing Temperatures, and Their Computing Applications

Shinichi Ishiguri

Subject: Physical Sciences, Acoustics Keywords: quantum diode; quantum gate element; novel superconductivity; bias current; memorization property; quantum correlation

Online: 17 November 2020 (12:50:24 CET)

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Preprint ARTICLE | doi:10.20944/preprints202102.0208.v1

A Solution of the Cosmological Constant, Using Multiverse Version of Penrose CCC Cosmology, and Enhanced Quantization Compared

Andrew Beckwith

Subject: Physical Sciences, Acoustics Keywords: Minimum scale factor; cosmological constant; space-time bubble; bouncing cosmologies

Online: 8 February 2021 (13:00:28 CET)

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Preprint ARTICLE | doi:10.20944/preprints202106.0038.v1

The Carnot Cycle, Reversibility and Entropy

David Sands

Subject: Physical Sciences, Acoustics Keywords: Carnot cycle; entropy; reversibility; irreversibility; Clausius

Online: 1 June 2021 (14:59:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202012.0158.v1

Relationship Between Chewing Ability and Nutritional Status in Japanese Older Adults: A Cross-Sectional Study

Keiko Motokawa, Yurie Mikami, Maki Shirobe, Ayako Edahiro, Yuki Ohara, Masanori Iwasaki, Yutaka Watanabe, Hisashi Kawai, Takeshi Kera, Shuichi P Obuchi, Yoshinori Fujiwara, Kazushige Ihara, Hirohiko Hirano

Subject: Physical Sciences, Acoustics Keywords: nutrient intake; food groups; chewing ability

Online: 7 December 2020 (13:14:25 CET)

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Preprint ARTICLE | doi:10.20944/preprints202107.0573.v1

Explosives Use In Decommissioning – Guide for Assessment of Risk (Edgar): I Determination of Sound Pressure Levels for Open Water Blasts and Severance of Conductors and Piles from below the Seabed

Alison M. Brand

Subject: Physical Sciences, Acoustics Keywords: Underwater noise modelling; decommissioning; conductor and pile severance; explosives; sound pressure level

Online: 26 July 2021 (11:59:32 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202103.0079.v1

On the Wireless Microwave Sensing of Bacterial Membrane Potential in Microfluidic-Actuated Platforms

Marc Jofre, Lluís Jofre, Luis Jofre-Roca

Subject: Physical Sciences, Acoustics Keywords: Bacteria; elasto-inertial focusing; microfluidics; microwaves; membrane potential; sensing; shear stress; single cell detection; system-on-a-chip

Online: 2 March 2021 (11:24:18 CET)

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Preprint ARTICLE | doi:10.20944/preprints202107.0451.v1

Physics Formalism Helmholtz Matrix to Coulomb Gage

Rajan Iyer

Subject: Physical Sciences, Acoustics Keywords: Physics; Matrix Algebra; Metrix; Modeling Parameters; Transforms; Matrix; Mathematics

Online: 20 July 2021 (14:02:21 CEST)

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Iyer Markoulakis Helmholtz Hamiltonian mechanics formalisms mathematically modeled physics with vortex rotational fields acting with gradient fields, typically in zero-point microblackhole general fields. Here, Helmholtz metrics have been gaged to Coulombic Hilbert metrics, representing Gilbertian and Amperian natures of electromagnetic fields out of the mechanical fields from Helmholtz Hamiltonian mechanics. This ansatz general gaging helps to properly isolate field effects – mechanical, electric, magnetic components within the analytical processes. Vacuum gravitational fields and the flavor Higgs-Boson matter inertial gravitational fields have been thus quantified extending to stringmetrics constructs matrix showing charge asymmetry gage metrics, having the power to analyze dark energy superluminal phase, dark matter luminal phase, and light matter subluminal phase. Interpreting particle physics gage matrix pointing to Dirac seas electrons, monopoles with positrons, electron-positron annihilation leading to energy production, relativistic energy generating matter, and both monopoles – vacuum and compressed out of vortex Helmholtz decomposition fields have been interpolated. Quantum ASTROPHYSICS gage metrix posits superluminal profile of signals velocity generating electron-positron chain like “curdling” action that is consistent with physics literature reporting nature electron photon observed oscillatory fields configurations. This helps proposing creation of neutrino antineutrino pair orthogonal to electron positron “curdling” planes, that may lead to formation of protonic hydrogen of stars or orthogonally muon. These aspects will explain receding or fast expanding universe with dark matter in terms of flavor metrics versus gage associating metrics flavor. Additional interpretations of virtual gravitational dipoles that have gravitational charge of opposite signs, reported per physics literature at Planck dimensions, that may originate at the center of supermassive blackhole. On the other hands, vacuum monopoles occur probably at infinity with cosmos extent.

Preprint ARTICLE | doi:10.20944/preprints202103.0413.v1

Ferromagnetic Hysteresis by Heisenberg Partition Function and Its Processing Methods in Nanoparticle Magnetization Modeling

Nana Chychkalo, Sergey Leble

Subject: Physical Sciences, Acoustics Keywords: hysteresis; Heisenberg magnetization theory; ab initio theory; multilayer models of nanoparticle; Curie-Weiss transition range

Online: 16 March 2021 (11:30:13 CET)

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Preprint ARTICLE | doi:10.20944/preprints202012.0627.v1

Addressed Fiber Bragg Sensors for Vibration Diagnostics of Complex Objects

A. Kuznetsov, K. Lipatnikov, A. Sakhabutdinov, O. Morozov, K. Karimov

Subject: Physical Sciences, Acoustics Keywords: Fiber Bragg Structure; microwave photonics; vibration; fiber optic sensor; Address Fiber Bragg Grating

Online: 24 December 2020 (13:56:51 CET)

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Working Paper ARTICLE

Theory; A Connection between Newton’s Law and Coulomb’s Law?

Christopher Pilot

Subject: Physical Sciences, Acoustics Keywords: Winterberg Model, Extended Gravity Model, Gravitational Susceptibility Model, Cosmic Vacuum Model, Dark Energy, Dark Matter

Online: 16 February 2021 (13:40:55 CET)

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Preprint ARTICLE | doi:10.20944/preprints202012.0025.v1

Transport of Gaseous Hydrogen Peroxide and Ozone into Bulk Water vs. Electrosprayed Aerosol

Mostafa Elsayed Hassan, Mario Janda, Zdenko Machala

Subject: Physical Sciences, Acoustics Keywords: plasma-liquid interactions; water electrospray; aerosol microdroplet; bulk water, plasma-activated water; Henry’s law solubility; ozone; hydrogen peroxide

Online: 1 December 2020 (13:16:22 CET)

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Preprint ARTICLE | doi:10.20944/preprints202010.0205.v2

Contribution of Pressure to the Energy-Momentum Density in a Moving Perfect Fluid -- a Physical Perspective

Ashok Singal

Subject: Physical Sciences, Acoustics Keywords: Astrophysical fluid dynamics; Electromagnetism; energy-momentum formula; 4/3 problem in electromagnetic mass; Special Relativity

Online: 12 November 2020 (11:59:24 CET)

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Preprint ARTICLE | doi:10.20944/preprints201806.0350.v7

Derivation of Generalized Einstein's Equations of Gravitation in Inertial Systems Based on a Sink Flow Model of Particles

Xiao-Song Wang

Subject: Physical Sciences, Acoustics Keywords: Einstein's equations; gravitation; general relativity; sink; gravitational aether.

Online: 3 March 2021 (10:21:22 CET)

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Preprint ARTICLE | doi:10.20944/preprints202101.0288.v1

Irreversible Physical Process and Information Height

Qin Liu, Quan Tang, Yuling Yi, Yu Feng

Subject: Physical Sciences, Acoustics Keywords: time’s arrow; irreversible physical process; self-information; Shannon entropy; information height

Online: 15 January 2021 (12:30:33 CET)

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Preprint ARTICLE | doi:10.20944/preprints202101.0076.v6

Unification of the Electromagnetic Force and Gravity through the Composite Photon

Ian Clague

Subject: Physical Sciences, Acoustics Keywords: Unification; Composite Photon; Negative Mass; Antimatter; Grand Unification Theory, Dark Energy, Dark Matter

Online: 28 October 2021 (10:06:39 CEST)

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