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Preprint ARTICLE | doi:10.20944/preprints202409.1441.v1

Evolution Of Self-gravitating Fluid Spheres Involving Ghost Stars

Luis Herrera, Alicia Di Prisco, Justo Ospino

Subject: Physical Sciences, Theoretical Physics Keywords: Relativistic fluids; interior solutions; spherically symmetric sources

Online: 18 September 2024 (15:32:30 CEST)

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Preprint HYPOTHESIS | doi:10.20944/preprints202409.1432.v1

Hypothesis: Search for Sources of Systematic Error in Astrometric Measurements of the Cosmological Constant

Michael Overholt

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Lambda-CDM; dark energy; cosmological constant; Hubble Tension

Online: 18 September 2024 (14:59:21 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1396.v1

Search for True Ternary Fission in the Reaction ⁴⁰Ar+²⁰⁸Pb

Md Ashaduzzaman, Antonio Di Nitto, Emanuele Vardaci, Giovanni La Rana, Pia Antonella Setaro, Tathagata Banerjee, Antonio Vanzanella, Giuseppe Alifano

Subject: Physical Sciences, Nuclear And High Energy Physics Keywords: Ternary Fission; Fusion-fission reactions; Heavy ions; Spectrometers for nuclear physics

Online: 18 September 2024 (12:37:30 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202310.1872.v12

Alena Tensor and Its Possible Applications in Unification Theories

Piotr Ogonowski, Piotr Skindzier

Subject: Physical Sciences, Theoretical Physics Keywords: unification; electrodynamics; general relativity; dark energy; dark matter; quantum field theory; quantum mechanics; continuum mechanics

Online: 18 September 2024 (11:13:38 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1232.v1

Predictive Model of the Effects of Skin Phototype and Body Mass Index on Photobiomodulation Therapy for Orofacial Disorders

Alice Cassemiro, Lara Jansiski Motta, Paulo Fiadeiro, Elsa Fonseca

Subject: Physical Sciences, Optics And Photonics Keywords: photobiomodulation; Monte Carlo; laser dosimetry; machine learning

Online: 18 September 2024 (05:31:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202210.0172.v13

Dirac Fermion of a Monopole Pair (MP) Model

Samuel Yuguru

Subject: Physical Sciences, Theoretical Physics Keywords: Dirac fermion; Quantum mechanics; Quantum field theory; Dirac belt-trick; 4D space-time

Online: 18 September 2024 (03:22:31 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1039.v3

Interpretation of Gravity by Entropy

Seiji Fujino

Subject: Physical Sciences, Mathematical Physics Keywords: Entropy, Gravity; Galaxy rotation curve; MOND, Planck's law; Dynamical system; Inverse square law; Logistic function

Online: 17 September 2024 (15:42:03 CEST)

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Preprint HYPOTHESIS | doi:10.20944/preprints202409.1292.v1

Quantum Relativity

Ahmed Mohamed Ismail, Samira Ezzat Mohamed

Subject: Physical Sciences, Theoretical Physics Keywords: Special relativity; General relativity; photoelectric energy; Cosmic constants of nature

Online: 17 September 2024 (11:46:47 CEST)

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Preprint HYPOTHESIS | doi:10.20944/preprints202407.1773.v2

New Look on Nuclear Diffraction Scattering Mechanism. A Leading Role of Micro-Gravitational Waves

Henryk Wojciechowski

Subject: Physical Sciences, Nuclear And High Energy Physics Keywords: nuclear diffraction; gravitational waves

Online: 17 September 2024 (08:43:25 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1190.v2

Extended Classical Mechanics: Vol-1 - Equivalence Principle, Mass and Gravitational Dynamics

Soumendra Nath Thakur

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Apparent Mass; Dark Energy; Dark Matter; Effective Mass; Equivalence Principle; Extended Classical Mechanics; Gravitating Mass (Gravitational Mass); Gravitational Dynamics; Matter Mass; Negative Mass; Newton’ s Law of Universal Gravitation

Online: 17 September 2024 (06:20:44 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1253.v1

Distribution Characteristics of Trichiurus japonicus and Its Relationship with Environmental Factors in Central and Southern East China Sea and Yellow Sea

Xinyu Shi, Zhanhu Lu, Zhongming Wang, Jianxiong Li, Xin Gao, Zhuang Kong, Wenbin Zhu

Subject: Physical Sciences, Other Keywords: East China Sea; south central Yellow Sea; Trichiurus japonicus; Species distribution model; Spatial distribution; Environmental factor

Online: 17 September 2024 (02:55:51 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.0289.v16

Gravity and Riemann Hypothesis

Jun Ze Shi

Subject: Physical Sciences, Mathematical Physics Keywords: gravitation; Riemann hypothesis; Euler's formula; collision; vibration

Online: 16 September 2024 (13:24:34 CEST)

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Based on the understanding of relativity and quantum mechanics, this paper demonstrates that gravity is the result of spatial shape and dimension changes. The concept of space as dimension is expounded, and the difference between gravitational field space and material space is distinguished. The reason why the photon moves in space at a constant speed of c is explained. The concept of positive and negative energy is discussed, and the microscopic performance of positive energy as compression space and negative energy as stretching space is explained. Trying to understand increases the understanding of micro-uncertainty in dimensions. Guess the time travel hypothesis of black holes and white holes. It explains how matter generates new dimensions in the process of collision, especially through elastic collision to generate different dimensions and energy forms. The hierarchical control of dimension formation and how to achieve dimension balance are mentioned. The influence of dimension on life is discussed, especially how the change of dimension affects the basic properties of matter. proposed four forces that are most easily observed in any dimensional matter and explained their relationship to dimensional change. Through the mapping phenomenon of memory and reality, the role of residual energy is discussed. The concepts of π and e in mathematics are used to explain the process of dimension formation and energy transmission. The application of Riemann hypothesis and in understanding physical phenomena is mentioned. The imbalance of positive and Euler's formula negative energy in the universe is emphasized.How to maintain the balance and stability of the universe through collision and energy transfer is discussed. It explains why quantum is both a particle and a wave, and how this characteristic is related to the change of dimension. The only possibility to explain the universe before the change from the vibration. Explain the reason of path integral, so as to judge whether there is superposition state. It is proposed that the time in quantum motion is only a parameter, which further strengthens the relationship between gravity and spatial shape. By combining mathematics, physics and philosophical thinking, the article reveals the complex and subtle mechanisms hidden behind nature.

Preprint ARTICLE | doi:10.20944/preprints202409.1190.v1

Extended Classical Mechanics: Vol-1 - Equivalence Principle, Mass and Gravitational Dynamics

Soumendra Nath Thakur

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Apparent Mass; Dark Energy; Dark Matter; Effective Mass; Equivalence Principle; Extended Classical Mechanics; Gravitating Mass (Gravitational Mass); Gravitational Dynamics; Matter Mass; Negative Mass; Newton’ s Law of Universal Gravitation

Online: 16 September 2024 (12:24:22 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1149.v1

The Two-Thirds Power Law Derived from an Higher-Derivative Action

Nicolas Boulanger, Fabien Buisseret, Frederic Dierick, Olivier White

Subject: Physical Sciences, Mathematical Physics Keywords: Higher-derivative actions; Phase-space; Motor control; Biomechanics; Adiabatic invariant

Online: 16 September 2024 (12:15:27 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.0669.v3

The Fisher-Tully Law Solely with 1915 General Relativity and Dark Energy

Remi Cornwall

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Cosmological Constant; Dark Matter Haloes; Dark Energy; Einstein Field Equations; Fisher-Tully Law; Galactic Rotation Curves; MOND; Quantised Inertia; TeVeS; Virtual Particles

Online: 16 September 2024 (10:22:15 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0971.v2

Magnetostrophic Flow and Electromagnetic Columns in Magneto-Fluid Dynamics

Peter Vadasz

Subject: Physical Sciences, Fluids And Plasmas Physics Keywords: Magnetostrophic Flow; Electromagnetic Columns; Taylor-Proudman Columns; Geostrophic Flow

Online: 16 September 2024 (10:18:02 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1158.v1

Experimental State Observer of the Population Inversion of a Multistable Erbium-Doped Fiber Laser

Daniel Alejandro Magallón-García, Didier López-Mancilla, Rider Jaimes-Reátegui, Juan Hugo García-López, Guillermo Huerta-Cuellar, Luis Javier Ontañón-García, Fabian Soto-Casillas

Subject: Physical Sciences, Optics And Photonics Keywords: State observer; erbium-doped fiber laser; multistability; nonlinear dynamic systems

Online: 16 September 2024 (10:04:36 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1122.v1

Gravitational Lensing Effects from Models of Loop Quantum Gravity with Rigorous Quantum Parameters

Haida Li, Xiangdong Zhang

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Loop Quantum Gravity

Online: 15 September 2024 (07:33:12 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1121.v1

On the Damped Pinney Equation from Noether Symmetry Principles

Fernando Haas

Subject: Physical Sciences, Mathematical Physics Keywords: Pinney equation; Noether theorem; Ermakov systems; dissipative systems

Online: 15 September 2024 (07:32:51 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1134.v1

The Mother's Day Solar Storm of 11 May 2024 and Its Effect on Earth's Radiation Belts

Viviane Pierrard, Alexandre Winant, Edith Botek, Maximilien Péters de Bonhome

Subject: Physical Sciences, Space Science Keywords: geomagnetic storm; solar energetic particles; solar event; radiation belts; energetic protons; relativistic electrons

Online: 14 September 2024 (10:38:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.0626.v3

Perturbed FLRW Metric Explains the Difference in Measurements of the Hubble Constant

Wladimir Belayev

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: perturbed FLRW metric; Einstein equations; particle Lagrangian; Hubble tension; gravitational lensing; distance ladder

Online: 13 September 2024 (11:52:27 CEST)

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Preprint BRIEF REPORT | doi:10.20944/preprints202407.1397.v2

The Secret to Fixing Incorrect Canonical Quantizations

John Klauder, Riccardo Fantoni

Subject: Physical Sciences, Theoretical Physics Keywords: canonical quantization; affine quantization; field theory

Online: 13 September 2024 (10:41:17 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0948.v1

Interplay between Structural, Electronic and Magnetic Properties in the d0-D Semi-heusler Compounds; the Case of the K-based Compounds

Kemal Özdoğan, Iosif Galanakis

Subject: Physical Sciences, Condensed Matter Physics Keywords: Heusler compounds; Ab-initio calculations; First-principles; Electronic structure; magnetic materials; Slater-Pauling rule

Online: 13 September 2024 (04:12:28 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0994.v1

Advances in Room Temperature of Indium Aluminum Nitride InAlN Deposition via Co-Sputtering DC for Solar Energy Applications

Juan David Cañón Bermudez, Luis Fernando Mulcué-Nieto

Subject: Physical Sciences, Condensed Matter Physics Keywords: InAlN solar cells; co-sputtering DC; room temperature; optical properties; morphological properties; low-cost synthesis; Indium Aluminum Nitride

Online: 12 September 2024 (12:58:45 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0988.v1

Machine Learning Model Trained with Finite Element Modeling Can Predict the Risk of Osteoarthritis: Data from the Osteoarthritis Initiative

Mika E. Mononen, Mimmi K. Liukkonen, Mikael J. Turunen

Subject: Physical Sciences, Applied Physics Keywords: knee; cartilage; finite element analysis; machine learning; osteoarthritis

Online: 12 September 2024 (12:26:21 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0965.v1

Solving the Dual Generalized Commutative Quaternion Matrix Equation AXB = C

Lei Shi, Qing-Wen Wang, Lv-Ming Xie, Xiao-Feng Zhang

Subject: Physical Sciences, Mathematical Physics Keywords: dual generalized commutative quaternion; matrix equation; solvability conditions; general solution

Online: 12 September 2024 (11:11:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0298.v3

Harmonizing Quantum Gravity with Thermodynamics: Determination of the EUP Parameter by Prigogine’s Law

Giorgio Sonnino

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Hawking radiation mechanism; Vacuum fluctuations; Physics of black holes

Online: 12 September 2024 (08:17:50 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0866.v1

A Note on Rényi Entropy Production for Markovian Evolution

Marco Favretti

Subject: Physical Sciences, Mathematical Physics Keywords: stochastic thermodynamics; Kolmogorov-Nagumo mean; Ré; ny entropy production

Online: 11 September 2024 (17:03:41 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0843.v1

AC Electric Conductivity of High Pressure and High Temperature Formed NaFePO4 Glassy Nanocomposite

Aleksander Szpakiewicz-Szatan, Szymon Starzonek, Jerzy Edward Garbarczyk, Tomasz Karol Pietrzak, Michał Boćkowski, Sylwester Janusz Rzoska

Subject: Physical Sciences, Condensed Matter Physics Keywords: high-pressure effects; alluaudite; NASICON; ac-conductivity; Jonscher scaling; sodium batteries

Online: 11 September 2024 (09:46:47 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.0878.v1

Mathematical Modelling of Physical Reality: From Numbers to Fractals, Quantum Mechanics and the Standard Model

Marian Kupczynski

Subject: Physical Sciences, Theoretical Physics Keywords: physical reality; perceptions and neuroscience; Bild conception; causality; mathematical modelling; classical mechanics; chaos theory, fractals; quantum mechanics; standard model

Online: 11 September 2024 (08:45:50 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.0755.v1

Luminescent Materials for Dye-sensitized Solar Cells: Advances and Directions

Emeka Harrison Onah, Ndanduleni Lethole, Patrick Mukumba

Subject: Physical Sciences, Applied Physics Keywords: luminescent materials; dye-sensitized solar cells; down conversion; up conversion; quantum dots

Online: 10 September 2024 (10:09:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0780.v1

Cosmic Dynamics Unveiled: A Relativistic Approach to Structure Formation and Evolution in a Friedmann Universe

Kennedy Kamuren Konga, Dismas Simiyu Wamalwa, Dickson Mwenda Kinyua, Patrick Njoroge Mwaniki, Daniel Maitethia

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Redshift; Light intensity; Number density; Friedmann; Standard Model

Online: 10 September 2024 (09:34:51 CEST)

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The advent of modern satellite technology has transformed observational astronomy and astrophysics, offering unprecedented insights into the large-scale behavior of gravitation and challenging established cosmological models. This technological progress has reinvigorated the study of relativistic cosmology, leading to a critical reassessment of foundational assumptions, particularly the cosmological principle, which posits that the universe is homogeneous and isotropic on large scales. While this principle underpins the Standard Cosmological Model and the Friedmann-Lemaitre-Robertson-Walker metric, emerging data has increasingly been challenging its validity. Central to this investigation are the redshift-distance and light intensity-distance relations, essential for testing cosmological models. The integration of both parametric and nonparametric redshift models provides a more comprehensive analysis, addressing discrepancies in our understanding of the universe's structure and evolution. However, unresolved mysteries, particularly concerning dark matter and dark energy, complicate these models. This research critically examines the cosmological principle using the latest observational data and scrutinizes the Friedmann model's assumptions. The study shows that galaxy formation was most rapid in the early universe, especially within the redshift range of , with notable peaks around at and These two characteristic redshift values, predicted by our standard Friedmann redshift model used in this work, are confirmed by the observational data utilized in this research. The research also highlights that dark matter plays a significantly more critical role than dark energy in the process of galaxy formation. While dark energy primarily affects the large-scale expansion of the universe, dark matter seems to go beyond the domination of local galaxy formation and evolution of cosmic structures. These findings underscore the limitations of current models and contribute to the ongoing refinement of cosmological theories, offering a clearer understanding of the universe’s evolution.

Preprint ARTICLE | doi:10.20944/preprints202403.0289.v15

Gravity and Riemann Hypothesis

Jun Ze Shi

Subject: Physical Sciences, Mathematical Physics Keywords: gravitation; Riemann hypothesis; Euler's formula; collision; vibration

Online: 10 September 2024 (07:57:46 CEST)

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Preprint BRIEF REPORT | doi:10.20944/preprints202409.0664.v1

Simulation of Polarized Light Microscopy for Multiple Analyzer Angles

Manuel Ballester, Zoey Ho, Asami Odate, Marc Walton, Aggelos Katsaggelos

Subject: Physical Sciences, Optics And Photonics Keywords: Polarized Light Microscopy; setup simulator; digital twin; anisotropic materials; optical properties; birefringent fibers

Online: 9 September 2024 (14:08:39 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.0669.v1

Electron Screening in Laboratory Nuclear Reactions

Jelena Vesić

Subject: Physical Sciences, Nuclear And High Energy Physics Keywords: electron screening; nuclear astrophysics; charge-induced reactions; reaction rates

Online: 9 September 2024 (14:05:12 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0656.v1

Novel Long Distance Free Space Quantum Secure Direct Communication for Web 3.0 Networks

Yifan Zhou, Xinlin Zhou, Zi Yan Li, Yew Kee Wong, Yan Shing Liang

Subject: Physical Sciences, Quantum Science And Technology Keywords: Quantum Cryptography; Web 3.0; Quantum Secure Direct Communication; Long-Distance Free- Space Quantum Secure Direct Communication; Quantum Security

Online: 9 September 2024 (12:42:23 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0634.v1

A Theory of Gravity in Minkowski Space

Naman Kumar

Subject: Physical Sciences, Theoretical Physics Keywords: Gravity as a force; Energy problem in GR; Dark energy; Early universe; Lorentz-symmetry breaking; Weyl GEM

Online: 9 September 2024 (12:23:53 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0658.v1

Quantitative and Qualitative Analysis of Main Effects and Interaction Parameters in Thermoacoustic Refrigerators Performance

Humberto Peredo Fuentes, Carlos Amir Escalante Velazquez

Subject: Physical Sciences, Applied Physics Keywords: Thermoacoustics; Design of experiments; Linear Thermoacoustic Theory; Pearson Analysis; ANOVA; Transfer Function

Online: 9 September 2024 (11:48:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0554.v1

Research on the Principle of Relative Variation of Light Speed and the Effect of Vacuum Mechanics

Yake li

Subject: Physical Sciences, Theoretical Physics Keywords: Dark energy; light speed; spacetime; internal energy; Self initiated force; universal gravitation

Online: 9 September 2024 (11:40:22 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202309.0873.v8

On the Interpretation of Cosmic Acceleration

Enrique Gaztanaga

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: cosmology; dark energy; general relativity; black holes

Online: 9 September 2024 (11:22:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.1651.v2

Limits of Special Relativity

Francois Danis

Subject: Physical Sciences, Theoretical Physics Keywords: Special relativity; twin paradox; Ehrenfest's paradox; causality; simultaneity; equivalence principle

Online: 9 September 2024 (08:42:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0636.v1

Essence Dynamics: Essence Interactions, Applications and Reality. Part II

Ogaeze Francis

Subject: Physical Sciences, Theoretical Physics Keywords: Essence interaction; reality; spatial reality; space; time dimensions; temporal dynamics; black holes; white holes; quantum; probabilities; wave-particle duality; universal constant; essence flow; mass; motion; gravity; electromagnetism; entanglement; time of flow; multi dimension; speed of light; gravitational ratio; Higgs field; quantum fields; measurement in time; electromagnetic waves; big bang; time difference; force field; diameter; electrons spin; energy; laws of physics; laws of essence interaction; general physics; dark energy; magic; alchemy; astral plane

Online: 9 September 2024 (08:28:06 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202406.2046.v3

The Unified Mechanism of Cosmic and Material Structure Based on the Ideal Model of Cosmic Continuum

Xijia Wang

Subject: Physical Sciences, Theoretical Physics Keywords: cosmic continuum; dark particle hypothesis; new equivalence principle; unified particle; existence field

Online: 9 September 2024 (03:03:30 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.0289.v14

Gravity and Riemann Hypothesis

Junze Shi

Subject: Physical Sciences, Mathematical Physics Keywords: gravitation; Riemann hypothesis; Euler's formula; collision; vibration

Online: 6 September 2024 (13:10:25 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0298.v2

Harmonizing Quantum Gravity with Thermodynamics: Determination of the EUP Parameter by Prigogine’s Law

Giorgio Sonnino

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Hawking radiation mechanism; Vacuum fluctuations; Physics of black holes

Online: 6 September 2024 (09:41:16 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0458.v1

The Adaptation of Laws in Physics: Adaptation of Mathematical Models in Physics

Anatolie Croitoru

Subject: Physical Sciences, Mathematical Physics Keywords: mathematical laws; physics; Euler's exponential laws; space-time dilation; Lorentz transformations ;

Online: 6 September 2024 (02:39:07 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0472.v1

Exploring the Western Shoreline of the Nuclear Chart: What Precision Mass Spectrometry with TITAN-TRIUMF Can Teach Us About Nuclear Existence

Annabelle Czihaly, Soenke Beck, Julian Bergmann, Callum L. Brown, Thomas Brunner, Timo Dickel, Jens Dilling, Eleanor Dunling, Jake Flowerdew, Zach Hockenbery, Andrew Jacobs, Brian Kootte, Stephan Malbrunot-Ettenauer, Fernando Maldonado Millán, Ali Mollaebrahimi, Erich Leistenschneider, Eleni Marina Lykiardopoulou, Ish Mukul, Stefan F. Paul, Wolfgang R. Plaß, Moritz Pascal Reiter, Christoph Scheidenberger, James L. Tracy, Jr., A. A. Kwiatkowski

Subject: Physical Sciences, Nuclear And High Energy Physics Keywords: Mass spectrometry; proton dripline; time-of-flight mass spectrometry; ion traps; radioactive ion beams; experimental nuclear physics

Online: 5 September 2024 (14:58:54 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0474.v1

Extensions of Perturbation Theory for Spin Dressed Neutrons and 3He Comagnetometers in Superfluid 4He

Adam Lipman

Subject: Physical Sciences, Nuclear And High Energy Physics Keywords: spin dressing; ultra cold neutrons; magnetic resonance; quantum mechanics; perturbation theory

Online: 5 September 2024 (14:54:47 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.0289.v13

Gravity and Riemann Hypothesis

Junze Shi

Subject: Physical Sciences, Mathematical Physics Keywords: gravitation; ; Riemann hypothesis; Euler's ; formula; collision; vibration

Online: 5 September 2024 (12:55:38 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0451.v1

Polynitrobenzene Derivatives, Containing -CF3, -OCF3, and -O(CF2)nO- Functional Groups, as Candidates for Perspective Fluorinated High-Energy Materials: Theoretical Study

Jelena Tamuliene, Jonas Sarlauskas

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: nitro compounds; polynitrobenzenes; fluorinated high-energy materials (F-HEMs); energetic properties; density; detonation pressure; detonation velocity; oxygen balance; stability; sensitivity

Online: 5 September 2024 (10:57:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0430.v1

Effect of Chemical Treatment on Mechanical and Hygric Properties of an Innovative Clay-Sand Composite Reinforced with Juncus acutus Fibers

Hana Ouerghi, Lamine Hassini, Amar Benazzouk, Mohamed Afif Elcafsi

Subject: Physical Sciences, Applied Physics Keywords: Juncus acutus fibers; Alkali treatment; Composite; Compressive and flexural strengths; Moisture buffer capacity; Water-absorption capacity

Online: 5 September 2024 (08:05:44 CEST)

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This work aims to investigate the impact of chemical treatment of Juncus acutus fibers on the hygric and mechanical performances of an innovative bio-sourced clay-sand-Juncus acutus fibers composite. This lightweight specimen has been produced from a mixture of 60 % natural clay and 40 % sand by mass, as a matrix, and reinforced with different amounts of Juncus fibers. The fibers were used as a partial replacement of sand in mixture by volume at 0 % (Control Specimen), 5 %, 10 %, and 20 %. In order to enhance the fiber-matrix interfacial bound, the raw fibers have undergone an NaOH alkali treatment with different concentrations of 1, and 2 wt. %. Morphological and mineralogical evaluation based on SEM micrographs and EDX analyses revealed that, the alkaline concentration of 1 wt. % is the optimized one for natural fiber surface modifications (removal of impurities without any surface damage). This optimal concentration is confirmed by tensile strength tests, showing that the treated fibers with this alkali solution presents the higher tensile stress value of 81.97 MPa, compared to those of treated fibers with 2 % NaOH (74.45 MPa), and the untreated fibers (70.24 MPa). However, mechanical test-results highlighted the benefit effect of the fiber alkali treatment on both the compressive and flexural strengths, particularly for fiber contents of 5 % and 10 %, which corresponds to a strengthening rate of 25 % and 30 %, respectively. Results also showed that the sample containing treated fibers exhibited a better moisture regulating property than that produced with untreated fibers. The specimens are classified as excellent hygric regulator based on their moisture buffer performance (MBV > 2 g/(m2.%RH)), according to NORDTEST classification. Results also indicated that the capillary water absorption and the apparent moisture diffusivity of composites was lowered due to high fiber-matrix interfacial bound, after fiber treatment. Consequently, the composite with treated fibers is less diffusive compared to that with untreated fibers, and thus expected to be more durable in a humid environment. These results were confirmed by morphological analysis of fibers-matrix interfacial transition zone.

Preprint ARTICLE | doi:10.20944/preprints202409.0313.v1

Comparison of Measurement Protocols for Internal Channels of Transparent Microfluidic Devices

Joris Kaal, Nicolas Feltin, Marc Lelong, Huabing Yin, Andrew Glidle, Kevin Romieu, Elsa Batista

Subject: Physical Sciences, Other Keywords: microfluidic chips; optical measurements; channels dimensions; methods validation

Online: 4 September 2024 (16:09:26 CEST)

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The microfluidic industry recognizes the lack of sensitive and standardized testing methods as one of the major hurdles to overcome before fulfilling its revolutionary promises. Highly ranked upon the list of things in need of testing methods are the internal dimensions of microfluidic structures after chip assembly. This work, performed under the MFMET project, aims to address this challenge by presenting and comparing multiple protocols for measuring the dimensions of internal microfluidic channels of fully assembled transparent chips. The protocols include optical profilometry, optical microscopy and tiled digital imagery. Several standardized chip designs out of two different materials commonly used in microfluidics (D263©bio and TOPAS© COC) were measured by the different protocols. A consistency analysis through normalized error statistics revealed optical profilometry as the preferred method due to its low uncertainty compared to the other protocols and its higher consistency with nominal geometry values. All protocols showed difficulty with vertical depth measurements of internal structures. Associated possible directions of future research are considered including further study of the influence of multiple refractive surfaces on optical profilometry measurements and further investigation of confocal microscopy as a potential measurement method showing promising preliminary results. The influence of the different materials appears to be minimal on optical profilometry, but other materials and method would merit looking into before such an observation might be generalized. In conclusion, the results of this work directly address the current lack of measurement methods for internal microfluidic structures by providing a comprehensive comparison of different protocols, ultimately suggesting a preferred option for immediate application within the microfluidic industry. Additionally, this work offers valuable directions for future research, serving as an initial step in overcoming a significant challenge that impedes the microfluidic industry from realizing its revolutionary potential.

Preprint CASE REPORT | doi:10.20944/preprints202409.0371.v1

An Advanced Software Tool for Precision Laser Beam Propagation Analysis

Lebohang Bell

Subject: Physical Sciences, Optics And Photonics Keywords: Laser beam; Propagation analysis; Python; Polynomial fitting; Beam quality factor; Software

Online: 4 September 2024 (13:33:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0294.v1

Importance of a Solid, Neutral Object as a Measuring Device for the Unification of Quantum Theory and General Relativity via Polynomials P(2π)

Helmut C. Schmidt

Subject: Physical Sciences, Theoretical Physics Keywords: neutron mass; proton mass; muon mass; tau mass; inner planetary system; cosmos; hierarchy problem

Online: 4 September 2024 (09:22:22 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202310.1872.v11

Alena Tensor and Its Possible Applications in Unification Theories

Piotr Ogonowski, Piotr Skindzier

Subject: Physical Sciences, Theoretical Physics Keywords: unification; electrodynamics; general relativity; dark energy; dark matter; quantum field theory; quantum mechanics; continuum mechanics

Online: 4 September 2024 (08:37:04 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0298.v1

Harmonizing Quantum Gravity with Thermodynamics: Determination of the EUP Parameter by Prigogine’s Law

Giorgio Sonnino

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Hawking radiation mechanism; Vacuum fluctuations; Physics of black holes

Online: 4 September 2024 (08:29:56 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0292.v1

Reflectivity Thresholds and Optical Loss Predictions in Resonant Photonic Cavities

*Paulo Henrique Dias Ferreira, Douglas Ramos do Amaral, Vinicius Tribuzi, John Fredy Ricardo Marroquin, Jorlandio Francisco Felix, Filippo Ghiglieno

Subject: Physical Sciences, Optics And Photonics Keywords: Optical loss measurement; Fabry-Pé; rot interferometer; Waveguide reflectivity; Scattering losses; Photonic device optimization

Online: 4 September 2024 (08:12:33 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.0275.v1

Rydberg-State Double-Well Potentials Of Van Der Waals Molecules

Tomasz Urbańczyk, Andrzej Kędziorski, Marek Krośnicki, Jarosław Koperski

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: Van der Waals molecule; Rydberg electronic state; double-well potential; ab initio calculations; vibrational energy structure; rotational energy structure

Online: 4 September 2024 (07:43:11 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0268.v1

Trends in the Occurrence of Compound Extremes of Temperature and Precipitation in Côte d’Ivoire

Elisée Yapo AKOBE, Adama DIAWARA, Fidèle YOROBA, Benjamin K. KOUASSI, Assi Louis Martial YAPO, Ibrahima DIBA, Kouakou KOUADIO, Dro T. TIÉMOKO, Dianikoura Ibrahim KONÉ, Arona Diedhiou

Subject: Physical Sciences, Other Keywords: CORDEX-Africa; compound extremes; precipitation; temperature; Cô; te d’ Ivoire

Online: 3 September 2024 (20:03:08 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0146.v1

A First Principles Study of Lithium Adsorption in Nanoporous Graphene

Liudmyla Barabanova, Alper Buldum

Subject: Physical Sciences, Condensed Matter Physics Keywords: nanoporous graphene; lithium adsorption; ab initio calculations; lithium-ion batteries

Online: 3 September 2024 (09:33:49 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0166.v1

Undamped Higgs Modes in Strongly Interacting Superconductors

Jose Lorenzana, Götz Seibold

Subject: Physical Sciences, Condensed Matter Physics Keywords: superconductivity; time-dependent Gutzwiller; collective modes

Online: 3 September 2024 (07:30:04 CEST)

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Preprint REVIEW | doi:10.20944/preprints202408.2241.v1

A Comprehensive Review of Piezoelectric Ultrasonic Motors: Classifications, Characterization, Fabrication, Applications and Future Challenges

Sidra Naz, Tian-Bing Xu

Subject: Physical Sciences, Applied Physics Keywords: Piezoelectric; ultrasonic motors (USMs); traveling wave ultrasonic motor; standing wave ultra-sonic motor; multi-DOF ultrasonic motors; fabrications; characterizations; applications; and challenges

Online: 3 September 2024 (04:59:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0099.v1

On the Elimination of Fast Variables from the Langevin Equation

Dick Bedeaux

Subject: Physical Sciences, Thermodynamics Keywords: Langevin equation; fluctuation-dissipation theorems; fast and slow variables; Onsager symmetry relations; correlation functions

Online: 3 September 2024 (03:36:23 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0075.v1

Influence of the Opening Time Interval of Gate Signals on Suppression of Horizontally-Polarized Signal of an Infrared Pulsed Laser

You Wang, Jing Liu

Subject: Physical Sciences, Optics And Photonics Keywords: Nd:YVO4 pulsed lasers; “ match-head” effect; Giant pulse suppression; Abnormal horizontally polarized emission; Slope duration of RF signals

Online: 2 September 2024 (11:00:18 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0084.v1

Design and Development of Miniature Measuring Instrument for Parachute Cords Dynamic Load for Stepless Parachute Opening

Liang Wei, Zhao Xin, Wu Peng Peng, Li Yu Xin, Lv Shuai

Subject: Physical Sciences, Applied Physics Keywords: stepless parachute opening; finite element analysis; real-time measurement; wireless data transmission; static calibration

Online: 2 September 2024 (09:56:14 CEST)

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Spacecraft recovery technology is crucial in the field of aerospace, in which the parachute plays a key role in slowing down the descent speed of the spacecraft and realizing a smooth landing. In order to construct a dynamically adjustable parachute deployment strategy, it is necessary to measure the parachute dynamic load accurately in real time. However, the existing sensor measurement scheme is difficult to meet the measurement requirements due to its large structure and complex wiring. In order to meet the current demand for real-time measurement of parachute cords dynamic load, a miniature measuring instrument is designed.According to the function and technical requirements of the miniature measuring instrument, the hardware modules of the acquisition system are selected and designed, and the integration debugging and performance optimization of the microcontroller module, A/D sampling module, signal acquisition circuit and power supply module are carried out. The software of the parachute cords tension acquisition system based on the miniature measuring instrument is developed. The elastomer is modeled by using SolidWorks and statically analyzed by using AnsysWorkbench finite element analysis software. Then the final structure of the elastomer and the pasting position of the strain gage are determined through the results analysis as well as experimental verification. The hardware module of the signal acquisition system for the miniature measuring instrument is then encapsulated. The force value of the miniature measuring instrument is calibrated and tested many times by using the microcomputer-controlled electronic universal testing machine. The experimental results show that the designed miniature measuring instrument has accurate data, strong stability and good real-time performance, which meets the demand for real-time accurate measurement of miniature measuring instrument, and can provide reliable data for parachute cords parameter validation and stepless unfolding design.

Preprint ARTICLE | doi:10.20944/preprints202409.0028.v1

Field Test of the MiniRadMeter Gamma and Neutron Detector for the EU Project CLEANDEM

Marco Ripani, Fabio Rossi, Luigi Cosentino, Fabio Longhitano, Paolo Musico, Mikhail Osipenko, Gaetano Elio Poma, Paolo Finocchiaro

Subject: Physical Sciences, Radiation And Radiography Keywords: gamma detector; neutron detector; nuclear decommissioning; nuclear accident remediation; robotic radiological inspection

Online: 2 September 2024 (08:54:05 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0040.v1

Investigation of the Protective Effect of Gallic Acid on the Toxicity of Diazinon-Induced Mitochondrial Damage and Oxidative Stress in the Brain of Mice

Mobina Oladzadeh, Hamidreza Mohammadi

Subject: Physical Sciences, Theoretical Physics Keywords: brain toxicity; diazinon; oxidative stress

Online: 2 September 2024 (08:45:18 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0007.v1

A Unified Force Theory Based on Quantum Aether Dynamics: Predictions and Experimental Support

David Thomson, James Bourassa

Subject: Physical Sciences, Theoretical Physics Keywords: unified force theory; quantum aether; distributed charge; fundamental forces; dimensional analysis

Online: 2 September 2024 (08:44:49 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0067.v1

3D Light-Direction Sensor Based on Segmented Concentric Nanorings Combined with Deep Learning

Pengcheng Huang, Peijin Wu, Ziyuan Guo, Zhicheng Ye

Subject: Physical Sciences, Optics And Photonics Keywords: 3D light-direction sensor; deep learning; nanorings; light field reconstruction

Online: 2 September 2024 (07:56:04 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.2248.v1

Characterization and Correction of Multipole Field Effect on Electron Beams from a High-Brightness Continuous-Wave Photocathode Gun

Haoyan Jia, Tianyi Li, Juntao Liu, Zhongqi Liu, Xiang Zhang, Jingyi Li, Kexin Liu, Cheng-Ying Tsai, Hang Xu, Senlin Huang

Subject: Physical Sciences, Nuclear And High Energy Physics Keywords: multipole field; beam aberration; characterization and correction; DC-SRF-II; continuous-wave photocathode gun

Online: 1 September 2024 (16:54:14 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.0289.v12

Gravity and Riemann Hypothesis

Junze Shi

Subject: Physical Sciences, Mathematical Physics Keywords: gravitation; ; Riemann hypothesis; Euler's ; formula; collision; vibration

Online: 30 August 2024 (23:37:02 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0604.v2

Solutions of the Mathieu-Hill Equation for the Trapped Ion Harmonic Oscillator. Qualitative Discussion

Bogdan M. Mihalcea

Subject: Physical Sciences, Mathematical Physics Keywords: Mathieu-Hill equation; Floquet theory; Strum-Liouville theorem; electrodynamic trap; stability diagram

Online: 30 August 2024 (08:37:15 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.2201.v1

Laser-Induced Decomposition and Mechanical Degradation of CFRP Subjected to a High-Energy Laser with Continuous Wave Power Up to 120 kW

Sebastian Schäffer

Subject: Physical Sciences, Optics And Photonics Keywords: high-energy laser; CFRP; laser impact; compound material; volume ablation; scalability; compression-after-impact; laser damage

Online: 30 August 2024 (05:08:54 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.2214.v1

Nature of Charge Transfer Effects in Complexes of Dopamine Derivatives Adsorbed on Graphene-Type Nanostructures

Alex-Adrian Farcas, Attila Bende

Subject: Physical Sciences, Chemical Physics Keywords: TDDFT; charge-transfer; Graphene; Dopamine; Zwitterion; Quinone

Online: 30 August 2024 (04:57:55 CEST)

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Preprint COMMUNICATION | doi:10.20944/preprints202408.0557.v2

GEANT4 Simulation of a Muon Tomography Station Using Novel and Simple Reconstruction Algorithm for Homeland Security Application

Mahmut Can Özuygur, Suat Özkorucuklu

Subject: Physical Sciences, Radiation And Radiography Keywords: Particle tracking detectors; Simulation methods; Geant4; Point of Closest Approach; Slope and Intercept; Image reconstruction

Online: 29 August 2024 (09:58:45 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202301.0023.v20

Bell's Theorem Begs the Question

Joy Christian

Subject: Physical Sciences, Quantum Science And Technology Keywords: Bell’ s theorem; local realism; Bell-CHSH inequalities; quantum correlations; Bell-test experimentsexperiments

Online: 29 August 2024 (09:53:51 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.2095.v1

Scalable Optical Neural Network Based on Free-Space Optics Using Lens Arrays and a Smart Pixel Light Modulator

Young-Gu Ju

Subject: Physical Sciences, Optics And Photonics Keywords: optical neural network; free-space optics; optical computer; smart pixels

Online: 29 August 2024 (08:44:45 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.2057.v1

Essence dynamics: Essence interactions, applications and Reality. Part I

Ogaeze Onyedikachukwu Francis

Subject: Physical Sciences, Theoretical Physics Keywords: Essence interaction; reality; spatial and non spatial reality; space; time; dimensions; quantum; macroscopic; probabilities; wave-particle duality; universal constant; mass; motion; Speed of light; gravity; electromagnetism; time of flow; Time difference; dark energy; entanglement; nuclear forces; expansion; essence flow; anti matter; black holes

Online: 28 August 2024 (13:12:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1039.v2

Interpretation of Gravity by Entropy

Seiji Fujino

Subject: Physical Sciences, Mathematical Physics Keywords: Entropy, Gravity; Galaxy rotation curve; MOND, Planck's law; Dynamical system; Inverse square law; Logistic function

Online: 28 August 2024 (13:03:40 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202212.0045.v20

The Imaginary Universe (on the Three Complementary Sets of Measurement Units Defining Three Dark Electrons)

Szymon Łukaszyk

Subject: Physical Sciences, Mathematical Physics Keywords: emergent dimensionality; fine-structure constant; Planck units; dark quantum states, gravitational observations; holographic principle; mathematical physics

Online: 28 August 2024 (13:00:37 CEST)

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Three Fresnel coefficients for the normal incidence of electromagnetic radiation on monolayer graphene establish three complementary fine-structure constants, two of which are negative. Each introduces its own specific set of Planck units. Hence, two sets of basic Planck units are real and two are imaginary. The elementary charge is the same in all those sets of Planck units, establishing equality between the products of each fine-structure constant and the speed of light it is associated with, and defining the dark electron in each of these three complementary systems. All fine-structure constants are related to each other through the constant of pi, which indicates that they do not vary over time. The negative complementary fine-structure constant established by the graphene reflectance is dual to the fine-structure constant. The assumption of universality of the black hole entropy formula to the remaining two stellar objects emitting perfect black-body radiation less dense than a black hole (neutron stars and white dwarfs) renders their energies exceeding their mass-energy equivalence. To accommodate this unphysical result, we introduced an imaginary mass and defined three complex energies in terms of real and imaginary Planck units, storing the surplus energy in their imaginary parts. It follows that black holes are fundamentally uncharged and have a vanishing imaginary mass. We have derived the lower bound on the mass of a charged black-body \textit{object}, the upper bound on a white dwarf radius, and the equilibrium density of all three complex energies. The complex force between real masses and imaginary charges leads to the complex black-body \textit{object's} surface gravity and generalized Hawking radiation complex temperature. Furthermore, based on the Bohr model for the hydrogen atom, we show that complex conjugates of this force represent atoms and antiatoms. The proposed model considers the value(s) of the fine-structure constant(s), which is(are) otherwise neglected in general relativity, and explains the registered (GWOSC) high masses of neutron star mergers and the associated fast radio bursts (CHIME) without resorting to any hypothetical types of exotic stellar objects.

Preprint ARTICLE | doi:10.20944/preprints202408.2061.v1

‘TLDetect’ – AI-based Application for the Detection and Correction of Anomalous TLD Glow Curves

Gal Amit, Oran Revayev, Roy Vagner

Subject: Physical Sciences, Nuclear And High Energy Physics Keywords: TLD; Machine learning: Glow curves; anomaly classification; correction; dosimetry

Online: 28 August 2024 (12:34:22 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.2020.v1

Numerical Modelling of Vortex-Based Superconducting Memory Cells: Dynamics and Geometrical Optimization

Aiste Skog, Razmik A. Hovhannisyan, Vladimir M. Krasnov

Subject: Physical Sciences, Applied Physics Keywords: Josephson effect; superconductivity; digital electronics; nano-devices

Online: 28 August 2024 (10:47:52 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.2013.v1

On the Ionisation Tolerance of C₂₀ Fullerene in Ground and Excited Electronic States in Planetary Nebulae

SeyedAbdolreza Sadjadi, Quentin Andrew Parker

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: astrochemistry; C₂₀ fullerene; Ionisation; excited state; DFT; planetary nebulae

Online: 28 August 2024 (05:16:53 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1918.v1

The Quantum Primordial Black Holes, Dimensionless Small Parameter,Inflationary Cosmology and Non-Gaussianity

Alexander Shalyt-Margolin

Subject: Physical Sciences, Theoretical Physics Keywords: primordial black holes; inflationary cosmology; quantum-gravitational corrections; non-gaussianity

Online: 27 August 2024 (11:50:36 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1942.v1

Cosmological Models within $f(T, B)$ Gravity in a Holographic Framework

Khandro K Chokyi, Surajit Chattopadhyay

Subject: Physical Sciences, Theoretical Physics Keywords: Holographic Ricci Dark Energy; $f(T,B)$ gravity; scale factor

Online: 27 August 2024 (11:45:29 CEST)

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Preprint REVIEW | doi:10.20944/preprints202408.1950.v1

Quantum-Machine-Assisted Drug Discovery: Survey and Perspective

Yidong Zhou, Weikang Li, Gopal Karemore, Marinka Zitnik, Frederic Chong, Junyu Liu, Tianfan Fu, Zhiding Liang

Subject: Physical Sciences, Quantum Science And Technology Keywords: Quantum Computing; Drug Discovery; Clinical Trails; Quantum Algorithms

Online: 27 August 2024 (11:10:12 CEST)

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Preprint REVIEW | doi:10.20944/preprints202311.1386.v2

Quantum Gravity: Parameters for Detection via Spin Entanglement and Theoretical Models

Anhad Kohli

Subject: Physical Sciences, Particle And Field Physics Keywords: quantum gravity; gravitational entanglement; semiclassical gravity; perturbative quantum gravity

Online: 27 August 2024 (10:49:14 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202207.0399.v76

Physics at a Crossroads: Weird Concepts or Orthogonal Projections

Markolf H. Niemz

Subject: Physical Sciences, Theoretical Physics Keywords: spacetime; cosmology; dark energy; quantum mechanics; entanglement; non-locality

Online: 27 August 2024 (10:41:48 CEST)

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Preprint ESSAY | doi:10.20944/preprints202404.0608.v3

A Non-Traditional Anti-Gravity Method Is Theoretically Analyzed and Demonstratedand the Technical Realization Path Assumption

Shandong Zhao, Yijia Zhao

Subject: Physical Sciences, Applied Physics Keywords: Absolute airspace; Gravitation; Centrifugal force; Gravity; antigravity

Online: 27 August 2024 (09:25:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1434.v2

Quantum Collapse in an Isolated Laboratory

David Ring

Subject: Physical Sciences, Quantum Science And Technology Keywords: quantum mechanics; quantum measurement; quantum foundations ;

Online: 27 August 2024 (04:36:59 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1881.v1

Computing Unified Atomic Mass Unit and Avogadro Number with Various Nuclear Binding Energy Formulae Coded in Python

Satya Seshavatharam U.V, Lakshminarayana S

Subject: Physical Sciences, Nuclear And High Energy Physics Keywords: protons; neutrons; electrons; nuclear binding energy; various mass formulae; strong and electroweak mass formula; unified atomic mass unit; Avogadro number; mole

Online: 27 August 2024 (00:37:52 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202307.1051.v11

Energy Renormalization in a Berry Geometrical Phase: Low-Energy Perturbations of the Strong Interaction and the QCD Mass Gap

Mark Gibbons

Subject: Physical Sciences, Particle And Field Physics Keywords: Berry geometrical phase; dual superconductivity; scale- and gauge-invariance; hyperbolic curvature; strong gravity; renormalization; QCD mass gap

Online: 26 August 2024 (17:00:36 CEST)

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Preprint REVIEW | doi:10.20944/preprints202408.1773.v1

Dirac’s Large Number Hypothesis: An Ongoing Quest for Correlations Between the Infinitesimal and the Infinite

Jonathan H. Jiang, Ethan Liu, Yanbei Chen

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Large Number Hypothesis; Infinitesimal; Infinite; Gravitational Constant; Continuous; Mass Creation; Anthropic Principle; Variability of Constants; Cosmological Parameters; Theoretical Physics; Universe Models; Einstein's Theory of General Relativity; Cosmic Time; Quantum Physics

Online: 26 August 2024 (16:29:29 CEST)

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Preprint REVIEW | doi:10.20944/preprints202408.1733.v1

TiO₂ for Photocatalysis and Energy Conversion: A Detailed Overview of the Synthesis, Applications, Challenges, Advances and Prospects for Sustainable Development

Dilshod Nematov, Anushervon Ashurov, Mufazzala Umarzoda

Subject: Physical Sciences, Condensed Matter Physics Keywords: titanium dioxide; thin films; catalytic reactions; photocatalysis; photocatalyst; surface interaction; nanomaterials; water purification; sustainable development

Online: 26 August 2024 (10:57:18 CEST)

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The term ‘photocatalysis’ has recently gained high popularity, and various products using photocatalytic functions have been commercialized. Of all the materials that may be used as photocatalysts, TiO₂ is virtually the only one that is now and most likely will remain appropriate for industrial application. Water and air purification systems, sterilization, hydrogen evolution, self-cleaning surfaces, and photoelectrochemical conversion are just a few of the products and applications in the environmental and energy domains that make extensive use of TiO₂ photocatalysis. This is due to the fact that TiO₂ has the lowest cost, most stability, and most effective photoactivity. Furthermore, history attests to its safety for both people and the environment because it has been used as a white pigment since antiquity. This review discusses some important aspects and issues concerning different synthesis methods and their influence on the structure and properties of TiO₂, as well as the concept of photocatalysis based on it as a promising biocompatible functional material that has been widely used in recent years. The advantages of TiO₂ applications in various fields of science and technology are discussed, including environmental protection, photocatalysis including self-cleaning surfaces, water and air purification systems, hydrogen liberation, photovoltaic energy, cancer diagnosis and therapy, coatings and dental products, etc. Information on the structure and properties of TiO₂ phases, as well as modern methods of synthesis of functional materials based on them are presented. This is followed by a detailed review of the basic principles of TiO₂ photocatalysis with a brief introduction to the modern concept of TiO₂ photocatalysis. Finally, the challenges and prospects of TiO₂ photocatalysis for various applications are briefly discussed. Recent advances in the fundamental understanding of TiO₂ photocatalysis at the atomic-molecular level are highlighted, and important recent advances in TiO₂ photocatalysis are summarized in terms of the design and engineering of new materials.

Preprint ARTICLE | doi:10.20944/preprints202310.1872.v10

Alena Tensor and Its Possible Applications in Unification Theories

Piotr Ogonowski, Piotr Skindzier

Subject: Physical Sciences, Theoretical Physics Keywords: unification; electrodynamics; general relativity; dark energy; dark matter; quantum field theory; quantum mechanics; continuum mechanics

Online: 26 August 2024 (09:42:23 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1787.v1

The Energy-Momentum Tensor of Electromagnetism Revisited

Serge Collin

Subject: Physical Sciences, Theoretical Physics Keywords: electromagnetism; Noether; canonical tensor; cosmology; dark matter; dark energy; general relativity

Online: 26 August 2024 (07:05:06 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1795.v1

Unified Model for Predicting the Size and Shape Dependent Cohesive Energy and Melting Temperature of Semiconducting Nanomaterials

Gebru Sherka, Habte Berry, Qinfang Zhang

Subject: Physical Sciences, Condensed Matter Physics Keywords: size; shape; packing factor; cohesive energy; melting temperature; semiconductor nanoparticle

Online: 26 August 2024 (06:54:19 CEST)

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Predicting the thermophysical properties of designed materials at the nanoscale is crucial. However, this remains a significant challenge despite numerous efforts by researchers and scientists. This paper presents a unified thermodynamic model to study the size and shape-dependent cohesive energy and the melting temperature of semiconductor nanosolids, including InSb, ZnSe, CdS, and CdSe. The model provides insight into the thermal stability of nanosolid materials by considering the combined impact of size, shape, and packing density. The finding indicates that smaller nanoparticles exhibit a lower cohesive energy than larger ones. Our unified thermodynamic model yields results consistent with experimental values and demonstrates a closer agreement than those from the universal liquid drop model of size-dependent cohesive energy, which includes a shape factor of α = 2/3 for nanowires. According to the results, the melting temperature of nanoparticles drops as their size decreases. Below a diameter of 5 nm, this trend becomes more noticeable. In the nano-scale domain, the nanoparticle's shape also matters greatly. In particular, compared to tetrahedral nanoparticles, nanowires show a lesser reduction in melting temperature. Also, up to a diameter of roughly 10 nm, the melting temperatures of these nanoparticles rise with particle size. The search results show that, especially in the < 5 nm size range, the size and shape of nanoparticles significantly affect their melting point. The models accurately predict the relationship between particle size and melting point for various semiconductor nanomaterials, aligning with experimental findings. Interestingly, the information indicates a potential preference for these nanomaterials to form nanowire structures in the < 5 nm size range. Our research offers helpful insights into the thermophysical properties of these semiconducting materials, which may have significant implications for their use in a diversity of technological applications.

Preprint ARTICLE | doi:10.20944/preprints202408.1692.v1

Complements to Existing Implementations of Quantum Information Processing

Adegbite Inioluwa Precious

Subject: Physical Sciences, Quantum Science And Technology Keywords: linear optical quantum computation; quantum inspired computation; quantum information processing

Online: 24 August 2024 (10:40:49 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1757.v1

Optimizing Bipolar Reset Waveform to Improve Grayscale Stability in Active Matrix Electrowetting Displays

Taiyuan Zhang, Li Wang, Linwei Liu, Wei Li, Shipeng Wu, Jianyang Guo, Guofu Zhou

Subject: Physical Sciences, Optics And Photonics Keywords: electrowetting display; oil backflow; driving waveform; active matrix; grayscale stability

Online: 23 August 2024 (17:19:06 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1690.v1

Generating Renewable Energy Based on a Circuit Approach (Part 2)

Shinichi Ishiguri

Subject: Physical Sciences, Applied Physics Keywords: current source; voltage source; electric power; renewable energy; circuit; light-emitting diode; super-condenser

Online: 23 August 2024 (09:17:28 CEST)

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