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Preprint ARTICLE | doi:10.20944/preprints202403.0961.v1

From Clastics to Carbonates and Black Shales: Deciphering Sedimentary Continuity and Discontinuity in the Devonian Landscape of the Volga-Ural Petroleum Province

Vladimir V. Silantiev, Dinara N. Miftakhutdinova, Nouria G. Nurgalieva

Subject: Environmental And Earth Sciences, Geophysics And Geology Keywords: Volga-Ural Petroleum Province, Devonian, black shales, carbonates, clastic, sedimentation, rate, environments

Online: 18 March 2024 (09:00:44 CET)

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Analyses of the three predominant types of sedimentation – clastic, carbonate and black shale – revealed their discontinuity/continuity in different facies environments of the Middle and Late Devonian of the central part of the Volga-Urals petroleum province, namely (1) in depressions, both condensed and non-condensed, (2) on the slopes of depressions and (3) in shallow water environments represented by tectonic arches or localised biohermal uplifts. The regional zonation of conodonts, correlated with the global chronostratigraphic scheme, substantiates the stratigraphic completeness of the general Devonian sequence in this area. In particular, the sedimentation of organic-rich black shales, traditionally considered as source rocks, lasted more than 29 million years, starting from the Late Eifel and ending at the Devonian-Carboniferous boundary. There was only one hiatus in the deposition of both black shales and carbonate sediments, lasting about 2.5 million years at the end of the Frasnian. That interval is dominated by clastic sediments, which are considered to be the most productive reservoirs of the Volga-Ural province. In the time interval from the beginning of the Eifel to the end of the Frasnian (about 17 Ma), (a) clastic sediments show the highest accumulation rates; (b) the most complete sequences occur in depressions; and (c) arches and uplifts show the most significant gaps in the geological record. During Famennian, (a) clastic sedimentation has completely ceased; (b) differences between the slopes of troughs and shallow-water environments have diminished, resulting in stable accumulation of carbonate sediments in both settings; (c) the decrease in sequence thickness (up to 50 m) in depressions suggests reduced accumulation rates of deep-water organic-rich black shales. The results help to understand the complex spatial relationship between different coexisting sedimentation types and focus attention to the incompleteness of the geological record in different environments.

Preprint ARTICLE | doi:10.20944/preprints202401.0018.v1

Feasibility Study on a Black Paper Base Film Coated with Cooked Tung Oil

Yi Wu, Yi-Cheng Shi, Yu-die Zhao, Yin Yu

Subject: Chemistry And Materials Science, Surfaces, Coatings And Films Keywords: black mulch film; degradable paper mulch film; hydrophobicity; heat transfer; anti-aging

Online: 3 January 2024 (03:28:17 CET)

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Preprint ARTICLE | doi:10.20944/preprints202310.0476.v1

A Disposable Carbon-Based Electrochemical Cell Modified With Carbon Black and Ag/δ-FeOOH for Non-enzymatic H2O2 Electro-Chemical Sensing

Wiviane Reis, Karoline Nantes, Ana Ferreira, Márcio Pereira, Luiz Mattoso, Ronaldo Faria, Andre Afonso

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: non-enzymatic sensor; Ag/δ-FeOOH; carbon black; hydrogen peroxide; electrochemical detection

Online: 10 October 2023 (03:13:13 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202309.1066.v1

Preliminary Results on Health Issues Incidence Evaluation in a Research Farm with Romanian Black Spotted Dairy Calves Breed

Elena Raducanu, Daniela-Mihaela Grigore, Dinu Gavojdian, Gheorghe Emil Mărginean, Livia Vidu

Subject: Biology And Life Sciences, Animal Science, Veterinary Science And Zoology Keywords: dairy calves; animal welfare; cattle health; Romanian Black Spotted breed; farm health

Online: 15 September 2023 (10:52:51 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202302.0427.v1

On the Thermodynamics of Matter

Naman Kumar

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Alternative Gravity, Thermodynamics of Black Holes. Quantum Focusing Conjecture, Thermodynamics and Gravity

Online: 24 February 2023 (15:41:02 CET)

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Preprint ARTICLE | doi:10.20944/preprints202209.0239.v1

Classification And Identification of Organic Matter in Black Soil Based on Simulated Annealing Optimization of LSVM-Stacking Model

Junlong Fang, Kezhu Tan, Zifang Zhang, Zhihua Liu, Hongzhao Xu, Qinghe Zhao

Subject: Environmental And Earth Sciences, Soil Science Keywords: Hyperspectral Technology; Non-destructive Testing; Black Soil; Ensemble learning; Support Vector Machine

Online: 16 September 2022 (07:40:27 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202209.0112.v1

A Generalized Model for Pricing Financial Derivatives Consistent with Efficient Markets Hypothesis – A Refinement of the Black-Scholes Model

Jussi Lindgren

Subject: Business, Economics And Management, Finance Keywords: options pricing; financial derivatives; efficient market hypothesis; martingale; Feynman-Kac; Black-Scholes

Online: 7 September 2022 (12:18:35 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202208.0253.v1

Theoretical Search for Gravitational Bound States of Tachyons

Charles Schwartz

Subject: Physical Sciences, Space Science Keywords: General Relativity; Schwarzschild metric; circular flows; tachyons; neutrinos; Dark Matter; black holes

Online: 15 August 2022 (08:26:33 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202003.0051.v2

Weak Deflection Angle and Shadow by Tidal Charged Black Hole

Wajiha Javed, Ali Hamza, Ali Övgün

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: Relativity; Gravitation; Black hole; Tidal Charge; Gauss-bonnet theorem; plasma medium; Shadow

Online: 19 October 2021 (10:13:01 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202109.0528.v1

Short-Term Cumulative Exposure to Ambient Traffic-Related Black Carbon and Blood Pressure: MMDA Traffic Enforcers’ Health Study

Zypher Jude G. Regencia, Godofreda V. Dalmacion, Antonio D. Ligsay, Emmanuel S. Baja

Subject: Public Health And Healthcare, Public, Environmental And Occupational Health Keywords: black carbon; systolic blood pressure; diastolic blood pressure; sex; obesity; traffic enforcers

Online: 30 September 2021 (16:08:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201911.0096.v1

Black Hole Entropy from Non-Commutative Geometry and Spontaneous Localisation

Tejinder P. Singh, Palemkota Maithresh

Subject: Physical Sciences, Quantum Science And Technology Keywords: black hole entropy; quantum gravity; non-commutative geometry; spontaneous localisation; trace dynamics

Online: 8 November 2019 (10:54:34 CET)

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Working Paper ARTICLE

Massive Photons Propagation in Gravitational Field

Arbab Arbab

Subject: Physical Sciences, Thermodynamics Keywords: black holes thermodynamics; entropic force; electromagnetic-gravity analogy; General Relativity; massive electrodynamics

Online: 12 October 2019 (04:16:45 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201907.0172.v1

Tunneling of Massive Vector Particles under the Influence of Quantum Gravity

Wajiha Javed, Riasat Ali, Rimsha Babar, Ali Övgün

Subject: Physical Sciences, Quantum Science And Technology Keywords: massive boson particles; wave equation; quantum gravity; Hawking radiation; black hole thermodynamics

Online: 14 July 2019 (17:12:54 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201906.0100.v1

On the Cosmological Origin of the Rest Mass of Elementary Particles: The Ideas of Maximons and Minimons Revisited

Vikraman Vipindas, Trivandrum Easwaraiyer Girish, Chellappan Radhakrishnan Nair

Subject: Physical Sciences, Nuclear And High Energy Physics Keywords: elementary particles; cosmological origin; maximon; Hawking radiation; neutrino mass; primordial black holes

Online: 12 June 2019 (03:45:41 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201812.0354.v1

Biofuel Produced from Solid-State Anaerobic Digestion of Dairy Cattle Manure in Coordination with Black Soldier Fly Larvae Decomposition

Choon Yong Wee, Jung-Jeng Su

Subject: Biology And Life Sciences, Animal Science, Veterinary Science And Zoology Keywords: biogas; black soldier fly; dairy cattle manure; digestate; solid-state anaerobic digestion

Online: 29 December 2018 (05:20:37 CET)

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Preprint ARTICLE | doi:10.20944/preprints201806.0482.v1

Nested Stochastic Valuation of Large Variable Annuity Portfolios: Monte Carlo Simulation and Synthetic Datasets

Guojun Gan, Emiliano Valdez

Subject: Computer Science And Mathematics, Probability And Statistics Keywords: Monte Carlo; regime-switching multivariate black-scholes; metamodeling; variable annuity; portfolio valuation

Online: 29 June 2018 (11:31:49 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201607.0051.v1

Search for QPOs in the Light Curve of the Blazar OJ287: Preliminary Results from 2015/16 Observing Campaign

S. Zola, M. Valtonen, G. Bhatta, A. Goyal, B. Debski, A. Baran, J. Krzesinski, M. Siwak, S. Ciprini, A. Gopakumar, H. Jermak, K. Nilsson, D. Reichart, K. Matsumoto, K. Sadakane, K. Gazeas, M. Kidger, V. Piirola, F. Alicavus, K.S. Baliyan, A. Berdyugin, D. Boyd, M. Campas Torrent, F. Campos, J. Carrillo Gomez, D.B. Caton, V. Chavushyan, J. Dalessio, D. Dimitrov, M. Drozdz, A. Erdem, A. Escartin Perez, V. Fallah Ramazani, A.V. Filippenko, F. Garcia, F. Gomez Pinilla, M. Gopinathan, J.B. Haislip, J. Harmanen, G. Hurst, K.M. Ivarsen, M. Jelinek, A. Joshi, M. Kagitani, N. Kaur, N. Karaman, W.C. Keel, A.P. LaCluyze, B.C. Lee, E. Lindfors, J. Lozano De Haro, J.P. Moore, R. Naves Nogues, A.W. Neely, R.H. Nelson, W. Ogloza, S. Okano, J.C. Pandey, M. Perri, P. Pihajoki, G. Poyner, J. Provencal, T. Pursimo, A. Raj, R. Reinthal, S. Sadegi, T. Sakanoi, J.-L. Salto Gonzales, T. Schweyer, F.C. Soldan Alfaro, E. Sonbas, I. Steele, J.T. Stocke, J. Strobl, L.O. Takalo, T. Tomov, L. Tremosa Espasa, J.R. Valdes, J. Valero Perez, F. Verrecchia, J.R. Webb, M. Yoneda, M. Zejmo, W. Zheng, J. Telting, J. Saario, T. Reynolds, A. Kvammen, E. Gafton, R. Karjalainen, P. Blay

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: galaxies: active; BL Lacertae objects: individual (OJ 287); super massive black holes

Online: 18 July 2016 (10:46:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202003.0313.v2

Small-Object Detection in Remote Sensing Images with End-to-End Edge-Enhanced GAN and Object Detector Network

Jakaria Rabbi, Nilanjan Ray, Matthias Schubert, Subir Chowdhury, Dennis Chao

Subject: Computer Science And Mathematics, Computer Vision And Graphics Keywords: object detection; faster region-based convolutional neural network (FRCNN); single-shot multi-box detector (SSD); super-resolution; remote sensing imagery; edge enhancement; satellites

Online: 16 April 2020 (03:08:50 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202208.0409.v1

Absence of Electric Field outside a Static Charged Black Hole - Something Awry in Reissner-Nordström Metric

Ashok Singal

Subject: Physical Sciences, Space Science Keywords: Black Hole has no hair; Electromagnetic field of a charged black hole, Electromagnetic field of a supported charge in gravitational field; electric fields follow photo trajectories in gravitational field

Online: 24 August 2022 (04:49:54 CEST)

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Using the principle of equivalence, it has recently been shown that the electrostatic field lines of a charge, stationary in the gravitational field, bend exactly like the trajectories of photons emitted isotropically from a source at the charge location and that the fraction of electric flux crossing a surface `below' or `above' the charge is exactly similar to the fraction of photon trajectories intersecting these surfaces, with more flux in the downward direction than upward. As one goes much deeper in the gravitational field, all electric field lines increasingly point in the vertically downward direction as is also the case for a stream of photons. Since photon trajectories as well as electric field lines, at any location in the gravitational field, are affected by the local space-time curvature an inference can be drawn that this parallel between the photon trajectories and the electric field lines is a general result. We could then apply these results in the external gravitational field of a black hole, where the trajectories of photons in the gravitational field are already well-known and the behaviour of electric field lines of a stationary charge could be inferred therefrom. Accordingly, we show that the electric field through an external spherical surface surrounding the black hole steadily reduces as the charge location approaches the event horizon (Schwarzschild radius), and like photons from a source inside the Schwarzschild radius cannot escape outside, the electric field lines of a charge within the black hole too remain trapped inside the event horizon. From this one arrives at a conclusion that, contrary to the conventional wisdom, the electric charge contained inside a static black hole cannot be detected or inferred by an external observer. A black hole, said to have no hair with the only external identifying characteristics being mass, electric charge, and angular momentum, is therefore all the more `hairless', as even its charge cannot be ascertained. The derivation of the Reissner-Nordström metric, supposedly describing the gravitational field of a static charged black hole, presumes an external stress-energy tensor of the electrostatic field, as per Gauss law, even for the charges contained within the black hole. However, the absence of electric flux external to a static charged black hole implies that such a charged black hole is not described correctly by the Reissner-Nordström metric and the consequential peculiarities of the space-time geometry, leading in specific cases to the idea of a naked intrinsic singularity and a need for the ``cosmic censorship'' hypothesis, also do not arise here.

Preprint ARTICLE | doi:10.20944/preprints202403.0505.v1

In-Situ Improvement of Sediment Microenvironment by Nitrate in Tailwater of Wastewater Treatment Plants Combined with Aerobic Denitrifying Bacteria under Low-Do Regulation

Junyi Chen, Chao Zhang, Yun Liu, Jie Tian, Jianbo Guo

Subject: Environmental And Earth Sciences, Pollution Keywords: Black and odorous water bodies, Microenvironment, Sulfur autotrophic denitrification, Electroactive Bacteria, Functional gene

Online: 8 March 2024 (09:25:20 CET)

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Preprint CASE REPORT | doi:10.20944/preprints202401.1288.v1

Light and Brain: A Clinical Case Depicting the Effects of Light on Brainwaves and Possible Presence of Plasma-Like Brain Energy.

Zamzuri Idris, Zaitun Zakaria, Ang Song Yee, Diana Noma Fitzrol, Muhammad Ihfaz Ismail, Abdul Rahman Izaini Ghani, Jafri Malin Abdullah, Mohd Hasyizan Hassan, Nursakinah Suardi

Subject: Biology And Life Sciences, Neuroscience And Neurology Keywords: light, photobiomodulation; brainwaves; thermodynamics; quantum brain; plasma; black body; awake brain surgery; electrocorticography

Online: 17 January 2024 (08:38:17 CET)

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Preprint ARTICLE | doi:10.20944/preprints202311.1535.v2

Energy -Momentum Localization in Quantum Gravity

Stuart Marongwe

Subject: Physical Sciences, Theoretical Physics Keywords: Quantum Gravity; Energy-Momentum Localization; Dark Energy; Dark Matter; Gravitational Waves; Black Holes

Online: 28 November 2023 (10:26:48 CET)

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Preprint ARTICLE | doi:10.20944/preprints202311.0840.v1

Salicylic and Jasmonic Acid Synergism During Black Knot Disease Progression in Plums

Ranjeet Shinde, Murali-Mohan Ayyanath, Mukund Shukla, Walid El Kayal, Praveen Kumar Saxena, Jayasankar Subramanian

Subject: Biology And Life Sciences, Horticulture Keywords: Apiosporina morbosa; black knot; phytohormones; plant growth regulators; plant immunity; plant-pathogen interactions

Online: 14 November 2023 (17:02:51 CET)

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Preprint ARTICLE | doi:10.20944/preprints202308.0629.v1

On CPT Universes in Background of a Black Hole Binary System

Aroonkumar Beesham

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: CPT universe; big bang; Binary black hole; Mirror image and space-time; Brane

Online: 8 August 2023 (07:12:39 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202306.0201.v2

Spiral Arm Formation of Galaxies Through ROTASE Mechanism Is Perfectly Demonstrated by Falling Rockets Venting Fuel

Hongjun Pan

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Spiral arms; Spiral galaxies; X-matter; Black holes; Galaxy evolution; Spirals by rockets

Online: 30 June 2023 (11:38:13 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202306.1793.v1

Unleashing Black Sea Cucumber's Potential: Identifying Anti-Cancer Compounds Through In Silico Drug Discovery

Muhammad Fahrury Romdendine, Wisnu Ananta Kusuma, Annisa Annisa, Mala Nurilmala, Rizka Fitriani

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: bioactive compounds; black sea cucumbers; cancer; drug-target interactions; machine learning; molecular docking

Online: 26 June 2023 (10:36:43 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202202.0245.v2

Effects of Electric and Magnetic Charges on Weak Deflection Angle and Bounding Greybody of Black Holes in Nonlinear Electrodynamics

Wajiha Javed, Mehak Atique, Ali Övgün

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: gravitational lensing; black holes; Gauss-Bonnet theorem; plasma medium; greybody factor; nonlinear electrodynamics

Online: 5 July 2022 (08:48:28 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202111.0231.v1

Effect of the Magnetic Charge on Weak Deflection Angle and Greybody Bound of the Black Hole in Einstein-Gauss-Bonnet Gravity

Wajiha Javed, Muhammad Aqib, Ali Övgün

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: Relativity; Gravitation Lensing; Black hole; Gauss-Bonnet Theorem; Deflection angle; Plasma medium; Greybody

Online: 12 November 2021 (15:09:25 CET)

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Preprint ARTICLE | doi:10.20944/preprints202101.0515.v1

The Entropy of Supermassive Black Holes during its Evaporation Time

R. Leticia Corral-Bustamante

Subject: Physical Sciences, Acoustics Keywords: Entropy; Black hole physics; Radiation mechanism: thermal; Relativity; Methods: analytical; Astronomical databases: miscellaneous

Online: 25 January 2021 (15:32:41 CET)

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Preprint ARTICLE | doi:10.20944/preprints202012.0426.v1

Formulation Of A Rational Option Pricing Model using Artificial Neural Networks

Kaustubh yadav, Anubhuti yadav

Subject: Computer Science And Mathematics, Computer Science Keywords: Black Scholes Equation; Heston Model Calibration; Option Pricing; Stochastic Processes; Artificial Neural Networks

Online: 17 December 2020 (16:22:34 CET)

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Preprint ARTICLE | doi:10.20944/preprints202012.0049.v1

4D Einstein-Gauss-Bonnet Gravity Coupled with Nonlinear Electrodynamics

Sergey Kruglov

Subject: Physical Sciences, Acoustics Keywords: Einstein-Gauss-Bonnet gravity; nonlinear electrodynamics; Hawking temperature; heat capacity; black hole shadow

Online: 2 December 2020 (08:05:42 CET)

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Preprint ARTICLE | doi:10.20944/preprints202009.0669.v1

Quasinormal Modes of Extended Gravity Black Holes

Abdul Jawad, Shahid Chaudhary, Muhammad Yasir, Ali Övgün, İzzet Sakallı

Subject: Physical Sciences, Acoustics Keywords: relativity and gravitation; Black Holes; Quasinormal modes; Modified Gravity; Einstein-Gauss-Bonnet Gravity

Online: 27 September 2020 (08:10:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202008.0604.v1

Impact of the Aerobic Mesophilic Microorganisms on Black Sigatoka of Bananas According to the Cropping Systems in the Region of Kisangani (Case of the Old Secondary Forest)

Gabriel Akwakwa Hopla, Chunyu Sun, Didy Onautshu, Yang Sun

Subject: Biology And Life Sciences, Immunology And Microbiology Keywords: aerobic mesophilic; black sigatoka; cropping systems; libanga likale; Yangambi 5Km; Litete; gros michel

Online: 27 August 2020 (08:55:23 CEST)

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Preprint ARTICLE | doi:10.3390/sci2010010

Data Fusion of Scanned Black and White Aerial Photographs with Multispectral Satellite Images

Dimitris Kaimaris, Petros Patias, Giorgos Mallinis, Charalampos Georgiadis

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: black and white aerial photographs; multispectral satellite images; data fusion; correlation tables; classification

Online: 13 March 2020 (00:00:00 CET)

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Preprint ARTICLE | doi:10.20944/preprints201909.0287.v1

A ‘Giant Microfossil’ from the Gunflint Chert and its Implications for Fungal and Eukaryote Origins

Mark A. S. McMenamin, Aurora Curtis-Hill, Sophie Rabinow, Kalyndi Martin, Destiny Treloar

Subject: Environmental And Earth Sciences, Paleontology Keywords: Gunflint Chert; stromatolites; black chert; origin of eukaryotes; evolution of fungi; Precambrian microfossils

Online: 26 September 2019 (00:48:56 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201908.0156.v1

Effect of Aether Field on Weak Deflection Angle of Black Holes

Ali Övgün, İzzet Sakallı, Joel Saavedra

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: deflection of light; Gauss-Bonnet theorem; gravitational lensing; black hole; null aether theory

Online: 13 August 2019 (10:29:17 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201906.0101.v1

Effect of the Hair on Deflection Angle by Asymptotically Flat Black Holes in Einstein-Maxwell-Dilaton Theory

Wajiha Javed, Jameela Abbas, Ali Övgün

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: elativity and gravitation; classical black hole; deflection angle; Gauss-Bonnet; non-linear electrodynamics

Online: 12 June 2019 (04:10:32 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201905.0323.v1

Evaluation of the Impact of Black Carbon on the Worsening of Allergic Respiratory Diseases in the Region of Western Serbia: A Time-Stratified Case-Crossover Study

Vesna Tomić Spirić, Gordana Kovačević, Jelena Marinković, Janko Janković, Anđa Ćirković, Ana Miošević Đerić, Nenad Relić, Slavenka Janković

Subject: Medicine And Pharmacology, Immunology And Allergy Keywords: black carbon; emergency department visits; allergic rhinitis; allergic asthma; case-crossover design; Serbia

Online: 28 May 2019 (09:50:24 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201905.0169.v1

Physico-Chemical Characterization and Biological Activities of Black and White Garlic: In Vivo and In Vitro Assays

Mª Ángeles Toledano Medina, Tania Merinas-Amo, Zahira Fernández-Bedmar, Rafael Font, Mercedes del Río-Celestino, Jesús Pérez-Aparicio, Alicia Moreno-Ortega, Ángeles Alonso-Moraga, Rafael Moreno-Rojas

Subject: Biology And Life Sciences, Horticulture Keywords: black garlic; Drosophila melanogaster; physico-chemical profile; polyphenol content; HL-60 cell line

Online: 14 May 2019 (12:06:54 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201903.0260.v1

Deflection Angle of Photon from Magnetized Black Hole and Effect of Nonlinear Electrodynamics

Wajiha Javed, jameela Abbas, Ali Övgün

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: relativity and gravitation; classical black hole; deflection angle; Gauss-Bonnet; non-linear electrodynamics

Online: 28 March 2019 (09:38:57 CET)

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Preprint ARTICLE | doi:10.20944/preprints202308.1485.v1

The Possible Role of Anti- and Pro-Tumour-Infiltrating Lymphocytes on Pathologic Complete Response in Early Breast Cancer Patients Treated with Neoadjuvant Systemic Therapy

Klara Geršak, Blaž Matija Geršak, Barbara Gazić, Andreja Klevišar Ivančič, Primož Drev, Nina Ružić Gorenjec, Cvetka Grašič Kuhar

Subject: Medicine And Pharmacology, Oncology And Oncogenics Keywords: breast cancer; pathologic complete response; tumour-infiltrating lymphocytes; neoadjuvant systemic therapy; CD8 antigen; forkhead box P3; programmed cell death 1 receptor; chemokine CXCL13

Online: 22 August 2023 (07:32:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201806.0166.v1

Distributed Deformation Monitoring for a Single-Cell Box Girder Based on Distributed Long-Gage Fiber Bragg Grating (LFBG) Sensors

Sheng Shen, Shao-fei Jiang

Subject: Engineering, Civil Engineering Keywords: deformation monitoring; distributed monitoring; single-cell box girder; long-gage strain; long-gage Fiber Bragg Grating; strain distribution; shear lag effect; shear action

Online: 12 June 2018 (05:47:08 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.0972.v1

Thermodynamical Metrics in General Relativity Theory

Espen Haug

Subject: Physical Sciences, Theoretical Physics Keywords: Thermodynamics, metrics, General relativity, Hawking temperature, CMB temperature, Planck scale, black holes.

Online: 18 March 2024 (10:34:13 CET)

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Preprint ARTICLE | doi:10.20944/preprints202402.0478.v2

Magnetic Black Hole Thermodynamics in an Extended Phase Space with Nonlinear Electrodynamics

S. I. Kruglov

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Einstein's gravity; black holes; thermodynamics; Smarr relation; Gibbs free energy; Anti-de Sitter spacetime

Online: 12 March 2024 (08:10:18 CET)

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Preprint ARTICLE | doi:10.20944/preprints202401.1547.v1

Electrical Conductivity, EMI Absorption Shielding Performance, Curing Process and Mechanical Properties of Rubber Composites

Ján Kruželák, Andrea Kvasničáková, Michaela Džuganová, Rastislav Dosoudil, Ivan Hudec, Henrich Krump

Subject: Chemistry And Materials Science, Polymers And Plastics Keywords: rubber; manganese-zinc ferrite; nickel-zinc ferrite; carbon black; carbon fibers; electromagnetic absorption shielding

Online: 22 January 2024 (04:29:44 CET)

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Preprint ARTICLE | doi:10.20944/preprints202309.0108.v1

Perspectives for Effective Long-Term Management of Carbon Stocks on Сhernozem under Future Climate

Ilshat Husniev, Vladimir Romanenkov, Stanislav Siptits, Vera Pavlova, Sergey Pasko, Olga Yakimenko, Pavel Krasilnikov

Subject: Environmental And Earth Sciences, Soil Science Keywords: soil organic matter; greenhouse gases; climatic change scenarios; adaptation; long-term experiment; black fallow

Online: 4 September 2023 (15:45:06 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202308.1671.v1

Designing Biomimetic Conductive Gelatin-Chitosan–Carbon Black Nanocomposite Hydrogels for Tissue Engineering

Kamol Dey, Emanuel Sandrini, Anna Gobetti, Giorgio Ramorino, Luciana Sartore

Subject: Chemistry And Materials Science, Biomaterials Keywords: hydrogel; gelatin; chitosan; conductive carbon black; nanocomposite; cyclic compression; dissipation energy; anisotropy; tissue engineering

Online: 23 August 2023 (11:53:29 CEST)

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Conductive nanocomposites play a significant role in tissue engineering by providing a platform to support cell growth, tissue regeneration, and electrical stimulation. In this present study, a set of electroconductive nanocomposite hydrogels based on gelatin (G), chitosan (CH) and conductive carbon black (CB) was synthesized with the aim to develop novel biomaterials for tissue regeneration application. Incorporation of conductive carbon black (10, 15 and 20 wt %) significantly improved electrical conductivity and enhanced mechanical properties with the increased CB content. We employed an oversimplified unidirectional freezing technique to impart anisotropic morphology with interconnected porous architecture. An investigation into whether any anisotropic morphology affects the mechanical properties of hydrogel was conducted by performing compression and cyclic compression tests in each direction parallel and perpendicular to macroporous channels. Interestingly, nanocomposite with 10 % CB produced both anisotropic morphology and mechanical property, whereas anisotropic pore morphology diminished at higher CB concentration (15 and 20 %) imparting denser texture. Collectively, the nanocomposite hydrogels showed great structural stability as well as good mechanical stability and reversibility. Under repeated compressive cyclic at 50 % deformation, the nanocomposite hydrogels showed preconditioning, characteristic hysteresis, nonlinear elasticity, and toughness. Overall, the collective mechanical behavior resembled the mechanics of soft tissues. Electrical impedance associated to the hydrogels was studied in terms of modulus and phase in dry and wet condition. The electrical properties conducted in wet conditions, which is more physiologically relevant, showed low impedance at high frequencies due to capacitive currents. Overall, impedance of the nanocomposite hydrogels decreased with increased CB concentrations. These gelatin-chitosan–carbon black nanocomposite hydrogels show great promise for use as conducting substrates for the growth of electro-responsive cells in tissue engineering.

Preprint ARTICLE | doi:10.20944/preprints202307.0146.v1

Syntaxonomy of charophyte algal communities in the eastern part of the Black Sea and Sea of Azov (Russia)

Dmitry F. Afanasyev, Natalia S. Berezenko, Sophia Barinova, Shamil R. Abdullin

Subject: Biology And Life Sciences, Life Sciences Keywords: charophytes, phytocenosis, prodromus, Brown-Blanquet approach, indirect ordination analysis, Sea of Azov, Black Sea

Online: 4 July 2023 (10:06:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202304.0636.v1

Properties of Spherically Symmetric Black Hole in the Framework of GBD Modified Gravitational Theory

Mou Xu, Jianbo Lu, Shining Yang, Hongnan Jiang

Subject: Physical Sciences, Theoretical Physics Keywords: generalized Brans-Dicke theory; corrected entropy of black hole; geodesics stability; modified gravity theory

Online: 20 April 2023 (09:25:56 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202208.0354.v1

Weak Lensing, Hawking Radiation and Greybody Factor Bound by a Charged Black Holes with Nonlinear Electrodynamics Corrections

Wajiha Javed, Mehak Atique, Reggie Pantig, Ali Övgün

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: general relativity; Gauss-Bonnet theorem; plasma medium; black hole; greybody; Hawking temperature; shadow cast

Online: 19 August 2022 (03:31:27 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202205.0214.v1

An Unhedgeable Black-Scholes-Merton Implicit Option?

Alfredo Pereira, Sean Tarter

Subject: Business, Economics And Management, Finance Keywords: Black-Scholes-Merton; hedging; market network; option valuation; portfolio optimization; risk-bearing portfolio managers

Online: 17 May 2022 (03:05:52 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202202.0266.v1

Weak Deflection Angle and Greybody Bound of Magnetized Regular Black Hole

Wajiha Javed, Sibgha Riaz, Ali Övgün

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: general relativity; gravitational lensing; magnetized black holes; gauss-bonnet theorem; plasma medium; greybody factor

Online: 22 February 2022 (09:56:17 CET)

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Preprint ARTICLE | doi:10.20944/preprints202108.0086.v1

Estimating the Recreational Value of the Abdanan Black Twin Lake: A Contingent Valuation Approach

Ali Sayehmiri, Atefeh heidarvand

Subject: Business, Economics And Management, Economics Keywords: contigent valuvation; Black Twin Lake of Abdanan; Recreational Value; Willingness to Pay; Logit Model

Online: 3 August 2021 (14:47:59 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202107.0091.v1

Weak Deflection Angle of Kazakov-Solodukhin Black Hole in Plasma Medium

Wajiha Javed, Iqra Hussain, Ali Övgün

Subject: Physical Sciences, Acoustics Keywords: Relativity; Gravitation Lensing; Kazakov-Solodukhin black hole; Gauss-Bonnet Theorem; Deflection angle; Plasma medium

Online: 5 July 2021 (10:48:57 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202003.0056.v1

A Chemically Safe Way to Produce Insect Biomass for Possible Application in Feed and Food Production

Truzzi Cristina, Anna Annibaldi, Federico Girolametti, Leonardo Giovannini, Paola Riolo, Sara Ruschioni, Ike Olivotto, Silvia Illuminati

Subject: Biology And Life Sciences, Biology And Biotechnology Keywords: Hermetia illucens prepupae; Black soldier fly; coffee silverskin; microalgae; toxic metals; bioaccumulation; chemical hazard

Online: 4 March 2020 (09:48:16 CET)

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Preprint ARTICLE | doi:10.20944/preprints201911.0195.v1

Finite-Distance Gravitational Deflection of Massive Particles by the Kerr-like Black Hole in the Bumblebee Gravity Model

Zonghai Li, Ali Övgün

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: weak gravitational lensing; Kerr-like black hole; deflection angle; Bumblebee gravity; Gauss-Bonnet theorem

Online: 17 November 2019 (01:46:21 CET)

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Working Paper ARTICLE

Outcomes of a Cluster Randomized Trial in Young Breast Cancer Survivors and Blood Relatives: Surveillance and Genetic Services

Maria C. Katapodi, Chang Ming, Laurel L. Northouse, Sonia A. Duffy, Debra Duquette, Kari E. Mendelsohn-Victor, Kara J. Milliron, Sofia D. Merajver, Ivo D. Dinov, Nancy K. Janz

Subject: Medicine And Pharmacology, Obstetrics And Gynaecology Keywords: HBOC; statewide random sampling; cancer survivorship; targeted intervention; tailored intervention; black participants; family recruitment

Online: 5 September 2019 (16:16:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201906.0239.v1

Chemical and Biochemical Onslaught of Anthropogenic Airborne Species on the Heritage Monument, the Taj Mahal

Deepankar Banerjee, Sabyasachi Sarkar

Subject: Arts And Humanities, Art Keywords: marble black crust; carbon nano particles; soluble dust; blue-green algae (cyanophyceae); humic substances

Online: 24 June 2019 (09:22:15 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201903.0186.v1

Deflection Angle of Photon Through Dark Matter by Black Holes/Wormholes Using the Gauss-Bonnet Theorem

Ali Övgün

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: Gravitational lensing; Maxwell fisheye; Weak lensing; Dark matter; Gauss-Bonnet theorem; Black hole; Wormhole

Online: 19 March 2019 (12:43:41 CET)

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Preprint REVIEW | doi:10.20944/preprints201812.0055.v1

Distribution, Habitat Preference, and Management of the Invasive Ambrosia Beetle Xylosandrus germanus (Coleoptera: Curculionidae, Scolytinae) in European Forests with Emphasis on the West Carpathians

Juraj Galko, Marek Dzurenko, Christopher M. Ranger, Ján Kulfan, Emanuel Kula, Christo Nikolov, Milan Zúbrik, Peter Zach

Subject: Biology And Life Sciences, Forestry Keywords: black timber bark beetle; biological invasion; Xyleborini; ambrosia beetle; spread; occurrence; ethanol; forest management

Online: 4 December 2018 (09:57:21 CET)

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Preprint ARTICLE | doi:10.20944/preprints201808.0289.v1

Effect of Hybrid Carbon Fillers on the Electrical and Morphological Properties of Polystyrene Nanocomposites in Microinjection Molding

Shengtai Zhou, Andrew N. Hrymak, Musa R. Kamal

Subject: Chemistry And Materials Science, Polymers And Plastics Keywords: Microinjection molding; Hybrid fillers; Multi-walled carbon nanotubes; Carbon black; Conductive polymer composites; Microstructure

Online: 16 August 2018 (14:25:56 CEST)

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Preprint CASE REPORT | doi:10.20944/preprints201612.0072.v1

Muslim Woman Seeking Work: An English Case Study with a Dutch Comparison, of Discrimination and Achievement

Christopher Bagley, Mahmoud Abubaker

Subject: Social Sciences, Political Science Keywords: racial discrimination; employment; United Kingdom; The Netherlands; black and ethnic minorities; women; Islam; alienation

Online: 14 December 2016 (07:54:52 CET)

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Preprint ARTICLE | doi:10.20944/preprints202401.1988.v1

The Effect of Seven-Strain Probiotic Supplementation on Th17 and Treg in Patients with Severe Traumatic Brain Injury Admitted to ICU: A Randomized Controlled Clinical Trial

Seyed Hamze Abbaszadeh, Mehdi Yousefi, Seyed Rafie Arefhosseini, Ata Mahmoodpoor, Mehrangiz Ebrahimi-Mameghani

Subject: Medicine And Pharmacology, Clinical Medicine Keywords: severe traumatic brain injury; regulatory T cell; forkhead box protein 3; T helper 17; retinoic acid receptor-related orphan receptor gamma t; gut microbiome; probiotic

Online: 29 January 2024 (08:51:54 CET)

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Preprint ARTICLE | doi:10.20944/preprints201911.0061.v1

Phylogenetic Profiling and Disordered Region Assessment of MECP2, CDKL5, and FOXG1 to Reveal Strategies for Rett Syndrome Treatment

Muhamad Fahmi, Gen Yasui, Kaito Seki, Syouichi Katayama, Takako Kaneko-Kawano, Tetsuya Inazu, Yukihiko Kubota, Masahiro Ito

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: rett syndrome; intrinsically disordered region; phylogenetic profile analysis; post-transcriptional modification; methyl-cpg-binding protein 2; cyclin-dependent kinase-like 5; forkhead box protein g1

Online: 6 November 2019 (10:58:54 CET)

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Preprint ARTICLE | doi:10.20944/preprints201907.0013.v1

Evolutionary Analysis of Rett Syndrome-Causing Proteins and Their Pathogenic Missense Point Mutations: Structural Order–Disorder, Post-Translational Modifications, Evolutionary Rates, and Interacting Proteins

Muhamad Fahmi, Gen Yasui, Kaito Seki, Syouichi Katayama, Takako Kaneko-Kawano, Tetsuya Inazu, Yukihiko Kubota, Masahiro Ito

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: Rett Syndrome; intrinsically disordered region; phylogenetic profile analysis; post-transcriptional modification; methyl-CpG-binding protein 2; cyclin-dependent kinase-like 5; forkhead box protein G1

Online: 1 July 2019 (11:59:56 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202401.0216.v1

Identification and Characterization of Nigrospora spp. and a Novel Species Nigrospora Wuhuensis Causing Black Leaf Spot on Rice and Wild-Rice in the Anhui Province of China

Yang Liu, Jiahao An, Asma Safdar, Yang Shen, Yang Sun, Wenhui Shu, Xiaojuan Tan, Bo Zhu, Jiaxin Xiao, Jan Schirawski, Guoping Zhu, Feng He

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: Fungal pathogens; Phylogenetic tree; Rice; Nigrospora anhuiensis; black leaf spot disease; fungi-cide; Nigrospora oryzae

Online: 3 January 2024 (09:44:37 CET)

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Preprint ARTICLE | doi:10.20944/preprints202312.1782.v1

The Hubble Sphere, Gravitational Fluid, Fluid Mechanics and the Planck Scale

Espen Haug

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Hydrostatic pressure; Hubble sphere; black hole; Planck length; super fluid

Online: 25 December 2023 (09:39:29 CET)

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Preprint ARTICLE | doi:10.20944/preprints202208.0368.v1

Deflection Angle and Shadow of the Reissner-Nordström Black Hole with Higher-Order Magnetic Correction in Einstein-Nonlinear-Maxwell Fields

Yashmitha Kumaran, Ali Övgün

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: Relativity; Gravitation Lensing; Black hole; Nonlinear electrodynamics; Gauss-Bonnet Theorem; Deflection angle; Plasma medium; Shadow

Online: 22 August 2022 (03:28:32 CEST)

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Preprint REVIEW | doi:10.20944/preprints202208.0347.v1

The Uncertainty Principle and the Minimal Space-Time Length Element

David Escors, And Grazyna Kochan

Subject: Physical Sciences, Quantum Science And Technology Keywords: General relativity; uncertainty principle; geodesics; black hole singularity; quantum gravity; Planck star; Lorentz invariance violations.

Online: 18 August 2022 (11:06:06 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202201.0238.v1

New Derivation of Redshift Distance Without Using Power Expansions. II. Additional Redshift Distances, Analyzing the Data of More Quasars, of Some SNIa, of the One Black Hole in Galaxy M87 as Well as a Newer Estimation of H₀

Steffen Haase

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: relativistic astrophysics; theoretical and observational cosmology; redshift; Hubble parameter; quasar; black hole; SNIa; galaxy; M87

Online: 17 January 2022 (15:28:25 CET)

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Preprint ARTICLE | doi:10.20944/preprints202111.0338.v1

Bounding Greybody and Weak Deflection Angle of NED Black Holes with Many Horizons

Wajiha Javed, Iqra Hussain, Ali Övgün

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: relativity; gravitation lensing; black hole; nonlinear electrodynamics; Gauss-Bonnet theorem; deflection angle; plasma medium; greybody

Online: 18 November 2021 (17:54:20 CET)

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Preprint ARTICLE | doi:10.20944/preprints202105.0626.v1

Circuit Complexity from Cosmological Islands

Sayantan Choudhury, Satyaki Chowdhury, Sudhakar Panda, Abinash Swain, Nitin Gupta, Anurag Mishara, Sachin Panneer Selvam, Gabriel D. Pasquino, Chiranjeeb Singha

Subject: Physical Sciences, Acoustics Keywords: Quantum Gravity; General Relativity; Cosmology; Circuit Complexity; AdS space time; Quantum Extremal Islands; Black Holes

Online: 26 May 2021 (08:48:25 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202102.0118.v1

Effective Removal of Amido Black and Eosin B Dyes in Aqueous Solution by MWCNT/ZrO2/Pb Nanocomposites: Isotherm, Reusability and Kinetic Studies

Marjan Sheibani, Mehrorang Ghaedi, Vahid Zare-Shahabadi, Arash Asfaram

Subject: Chemistry And Materials Science, Biomaterials Keywords: Adsorption; Amido black (AB); Central composite design (CCD); Eosin B (EB); MWCNT/ZrO2/Pb-NCs

Online: 3 February 2021 (14:42:15 CET)

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Preprint ARTICLE | doi:10.20944/preprints201911.0210.v2

Weak Deflection Angle by Asymptotically Flat Black Holes in Horndeski Theory Using Gauss-Bonnet Theorem

Wajiha Javed, Jameela Abbas, Yashmitha Kumaran, Ali Övgün

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: weak gravitational lensing; deflection of light; black hole; deflection angle; Horndeski theory; Gauss-Bonnet theorem

Online: 29 July 2020 (04:32:40 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201911.0142.v2

Effect of Non-Linear Electrodynamics on Weak Field Deflection Angle by Black Hole

Wajiha Javed, Ali Hamza, Ali Övgün

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: weak gravitational lensing; asymptotically flat black hole; deflection angle; non-linear electrodynamics; Gauss-Bonnet theorem

Online: 3 May 2020 (09:28:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202001.0136.v1

Weak Gravitational Lensing by Einstein-Non-Linear-Maxwell-Yukawa Black Hole

Wajiha Javed, Muhammad Bilal Khadim, Ali Övgün

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: Weak gravitational lensing; Einstein-non-linear Maxwell-Yukawa black holes; Deflection angle; Gauss-Bonnet theorem

Online: 12 January 2020 (17:40:26 CET)

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Preprint REVIEW | doi:10.20944/preprints202312.1988.v1

Battery Waste Management in Europe: Black Mass Hazardousness and Recycling Strategies in the Light of an Evolving Competitive Regulation

Mattia Gianvincenzi, Enrico Maria Mosconi, Marco Marconi, Francesco Tola

Subject: Environmental And Earth Sciences, Waste Management And Disposal Keywords: black mass; battery waste; waste classification; battery recycling; hazardous properties; European Regulations; waste management; recycling technologies

Online: 26 December 2023 (11:17:45 CET)

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Preprint ARTICLE | doi:10.20944/preprints202211.0049.v2

Algorithm for Additional Correction of Remote Sensing Reflectance in the Presence of Absorbing Aerosol

Anna Stanislavovna Papkova, Evgeny Borisovich Shybanov

Subject: Environmental And Earth Sciences, Oceanography Keywords: optical characteristics; chlorophyll-a concentration; ocean color; seawater; absorbing aerosol; dust; MODIS Aqua; AERONET; Black Sea

Online: 2 December 2022 (08:52:08 CET)

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Working Paper ARTICLE

Non-Singular Model of Magnetized Black Hole Based on Nonlinear Electrodynamics

Sergey I. Kruglov

Subject: Physical Sciences, Thermodynamics Keywords: non-singular black hole; modified theory of gravity; nonlinear electrodynamics; Reissner-Nordström solution; thermodynamics; Hawking temperature

Online: 11 December 2019 (03:02:35 CET)

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Preprint ARTICLE | doi:10.20944/preprints201905.0148.v1

Effect of the Dilaton Field on Deflection Angle of Massive Photons by Black Holes in Einstein-Maxwell-Dilaton-Axion Theory

Wajiha Javed, Rimsha Babar, Ali Övgün

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: deflection of light; gravitational lensing; massive photon; black hole; Gauss-Bonnet theorem; scalar deformation; dark matter

Online: 13 May 2019 (09:55:37 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201711.0064.v2

Influence of Nanoscaled Surface Modification on the Reaction of Al/Ni Multilayers

Heike Bartsch, José Manuel Mánuel, Rolf Grieseler

Subject: Chemistry And Materials Science, Nanotechnology Keywords: reactive multilayer; sputtering; self-propagating reaction; aluminum/nickel; black silicon; joining technology; nanostructured silicon; reactive nanomaterial

Online: 4 December 2017 (05:12:57 CET)

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Preprint ARTICLE | doi:10.20944/preprints202309.1751.v3

Firewalls, Hawking (Tolman) Radiation, and a Tentative Resolution of the Firewall-Mass Problem

Jack Denur

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Schwarzschild black holes; Schwarzschild non-black holes; Ruler distance; Planck units; Hawking radiation; Tolman radiation; Gravitational frequency shift; Firewall mass; Negative gravitational mass-energy; Birkhoff's Theorem; Thermodynamic equilibrium; First Law of Thermodynamics; Second Law of Thermodynamics

Online: 5 March 2024 (10:56:30 CET)

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Preprint ARTICLE | doi:10.20944/preprints202405.0640.v1

Nitrogen and Phosphorus Discharges from Cargo Ships’ Black and Grey Waters – Case of a Baltic Sea Port

Suvi-Tuuli Lappalainen, Ulla Tapaninen, Jonne Kotta

Subject: Waste Management And Disposal, Environmental And Earth Sciences Keywords: Wastewaters; nitrogen and phosphorus; sewage; black and grey waters; sewage treatment plant; port reception facilities; eutrophication; nutrients

Online: 10 May 2024 (11:31:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.0441.v1

Investigating the Performance of a Novel Modified Binary Black Hole Optimization Algorithm for Enhancing Feature Selection

Mohammad Ryiad Al-Eiadeh, Raneem Qaddoura, Mustafa Abdallah

Subject: Artificial Intelligence And Machine Learning, Computer Science And Mathematics Keywords: Feature Selection; Wrapper Feature Selection; Black Hole Algorithm; Cuckoo Search Algorithm; Correlation Functions; Transfer Function; Data Mining

Online: 8 May 2024 (15:26:26 CEST)

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High dimensional datasets are highly likely to have redundant, irrelevant, and noisy features that negatively affect the performance of the classification algorithms. Selecting the most relevant features and reducing the dimensions of datasets by removing the undesired features is a dimensional reduction technique called Feature Selection (FS). In this paper, we propose an FS approach based on the Black Hole Algorithms (BHO) with a mutation technique called MBHO. Generally, BHO contains two major phases. At the exploitation phase, a set of stars are modified based on some rule and according to some objective function, the best star is selected as the black hole which attracts other stars. Furthermore, when a star gets closer to the event horizon, it will be swallowed and a new one will be randomly generated in the search space which thus is the exploration phase. However, randomness may cause the algorithm to fall into the trap of local optima, and to overcome such complications, inversion mutation is used. Furthermore, we modify a widely utilized objective function in most of the proposed works for wrapper feature selection by combining two new terms that are based on the correlation among the selected subset of features and the features and the classification label. We also utilize a transfer function, known as the V2 transfer function, to convert continuous values into discrete ones to enhance search. We assess our approach via extensive evaluation experiments using fourteen benchmark datasets. We benchmark the performance of a wrapper FS approach called Binary Cuckoo Search (BCS), and three filter-based FS approaches (namely Mutual Information Maximisation (MIM), Joint Mutual Information (JMI), and minimum Redundancy Maximum Relevance (mRMR)). Our evaluation has shown that the proposed model is an effective approach for FS, in selecting better features that enhance the performance metrics on the classifiers. Thus, MBHO can be utilized as one alternative to the existing state-of-art-approaches. We release the source codes of our implementation for the community to build on with new methods and datasets.

Preprint ARTICLE | doi:10.20944/preprints202404.1332.v1

Study on the Application of Kramers−Kronig Relation for the Polyurethane Mixture

Haisheng Zhao, Quanjun Shen, Peiyu Zhang, Zhen Li, Shiping Cui, Lin Wang, Wensheng Zhang, Chunhua Su, Shijie Ma

Subject: Civil Engineering, Engineering Keywords: Kramers−Kronig relation; thermo−rheological simple property; Hilbert integral transform; dynamic modulus; Core−Core; black space diagram

Online: 19 April 2024 (10:35:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.0185.v1

The Expected Dynamics for the Extreme Wind and Wave Conditions at the Mouths of the Danube River in Connection with the Navigation Hazards

Alina Beatrice Răileanu, Liliana Rusu, Andra Luciana Marcu, Eugen Rusu

Subject: Engineering, Marine Engineering Keywords: Sulina channel; Danube mouths; Black Sea; navigation hazards; historical data; climate scenarios; atmospheric models; wave model simulations

Online: 4 March 2024 (15:53:26 CET)

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Preprint ARTICLE | doi:10.20944/preprints202402.0326.v1

Exploring Health-Seeking Behavior among Diverse Ethnic Subgroups within the Black Population in the United States and Canada: A Cross-Sectional Study

Yordanos M Tiruneh, Oluwatunmininu Anwoju, Ariel C. Harrison, Martha T. Garcia, Shauna K Elbers

Subject: Public Health And Healthcare, Public Health And Health Services Keywords: African American; African; Caribbean; Healthcare Utilization; Ethnic Disparities; Health-seeking behavior; Intragroup difference; black populations; ethnic subgroups

Online: 9 February 2024 (03:37:37 CET)

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Preprint ARTICLE | doi:10.20944/preprints202211.0398.v1

Temporal Variability of the Remote Sensing Reflectance and Color Index Trends in the Western Part of The Black Sea

Evgeny Borisovich Shybanov, Anna Stanislavovna Papkova, Darya V. Kalinskaya

Subject: Environmental And Earth Sciences, Oceanography Keywords: water-leaving radiance; remote sensing reflectance; color index; seasonal blooms; AERONET; Black Sea; MODIS Aqua; AOT; VIIRS

Online: 22 November 2022 (02:53:01 CET)

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Preprint ARTICLE | doi:10.20944/preprints202206.0322.v1

Discovery of Avian Paramyxoviruses APMV-1 and APMV-6 in Shorebirds and Waterfowl in Southern Ukraine

Amy C. Klink, Oleksandr Rula, Mykola Sushko, Maksym Bezymennyi, Oleksandr Mezinov, Oleksandr Gaidash, Xiao Bai, Anton Stegniy, Mykola Sushko, Roman Datsenko, Sergiy Skorohod, Vitalii Nedosekov, Nichola Hill, Levan Ninua, Ganna Kovalenko, Anne Lise Ducluzeau, Andriy Mezhenskiy, Devin M. Drown, Douglas Causey, Borys Stegniy, Anton Gerilovych, Eric Bortz, Denys Muzyka

Subject: Biology And Life Sciences, Virology Keywords: Viral Ecology; APMV; wild birds; Surveillance of Avian Paramyxoviruses; phylogenetics; MinION; Azov-Black Sea region in Ukraine

Online: 23 June 2022 (09:33:18 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202206.0211.v1

Probing Effective Loop Quantum Gravity on Weak Gravitational Lensing, Hawking Radiation and Bounding Greybody Factor by Black Holes

Wajiha Javed, Mehak Atique, Ali Övgün

Subject: Physical Sciences, Quantum Science And Technology Keywords: General Relativity; Black hole; Deflection angle; Hawking radiation; Plasma medium; Gauss-Bonnet theorem; Dark matter; Greybody factor

Online: 15 June 2022 (03:28:14 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202003.0414.v1

Circular Orbit of a Particle and Weak Gravitational Lensing

Zonghai Li, Guodong Zhang, Ali Övgün

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: relativity and gravitation; black hole; gravitational lensing; weak deflection angle; Gauss-Bonnet theorem; Weyl gravity; Bumblebee gravity

Online: 29 March 2020 (03:03:00 CEST)

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Working Paper ARTICLE

Quantum Hair on Colliding Black Holes

Lawrence Crowell, Christian Corda

Subject: Physical Sciences, Quantum Science And Technology Keywords: quantum information; quantum hair; black hole quantum physics; quantum levels; AdS/CF T correspondence; Ryu-Takayanagi formula

Online: 1 August 2019 (04:06:33 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201906.0124.v1

Effect of the Quintessential Dark Energy on Weak Deflection Angle by Kerr-Newmann Black Hole

Wajiha Javed, Jameela Abbas, Ali Övgün

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: Deflection of light; rotating black hole; Deflection angle; Gauss-Bonnet theorem; Gravitational lensing, Finsler geometry, Null geodesic}

Online: 13 June 2019 (13:28:52 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 ARTICLE | doi:10.20944/preprints202205.0327.v1

Spacetime as a Whole

Alireza Jamali

Subject: Physical Sciences, Space Science Keywords: Wave-black hole duality; nonmetricity; corrections to gravitational potential; minimum gravitational potential; geometry of implicit line elements; corrected Schwarzschild metric; energy-momentum tensor of spacetime; wavefunction of a black hole; Hamiltonian dynamics of a manifold; tensor Poisson bracket

Online: 24 May 2022 (09:30:41 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202401.0707.v1

Artificial Intelligence Sensing: Effective Flavor Blueprinting of Tea Infusions for a Quality Control Perspective

Andrea Caratti, Angelica Fina, Fulvia Trapani, Carlo Bicchi, Erica Liberto, Chiara Cordero, Federico Magagna

Subject: Chemistry And Materials Science, Food Chemistry Keywords: flavor blueprint; black tea infusions; sensomics-based-expert-system; industrial quality control; Artificial Intelligence sensing; accurate flavor screening

Online: 9 January 2024 (09:20:56 CET)

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Preprint ARTICLE | doi:10.20944/preprints202310.1617.v1

Heat Transfer Analysis on Promotion of CO₂ Reduction Performance of P₄O₁₀/TiO₂ Photocatalyst by Black Body Material

Akira Nishimura, Ryo Hanyu, Homare Mae, Hirokai Senoue, Eric Hu

Subject: Engineering, Chemical Engineering Keywords: heat transfer analysis; P4O10/TiO2 photocatalyst; CO2 reduction with NH3; black body material; infrared ray; mass transfer promotion

Online: 25 October 2023 (10:15:44 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202307.0331.v1

Changes in Snow Surface Albedo and Radiative Forcing in the Chilean Central Andes Measured by In-Situ and Remote Sensing Data

Luis Figueroa-Villanueva, Lina Castro, Tomás R. Bolaño-Ortiz, Raúl P. Flores, Diego Pacheco, Francisco Cereceda-Balic

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: Snow surface albedo, Radiative Forcing, Light-absorbing particles in snow, remote sensing, Black Carbon, Chilean Central Andes Mountains.

Online: 5 July 2023 (12:39:08 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202306.2186.v1

Protecting AODV Protocol from Black Hole Attack in WSN

Sana AKOURMIS, Youssef Fakhri, Moulay Driss Rahmani

Subject: Engineering, Telecommunications Keywords: Wireless Sensor Networks (WSNs); AODV; IDS (Intrusion Detection System); black hole attack; RREP (Route Reply) message; Security attack

Online: 30 June 2023 (08:58:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202302.0345.v1

Thermodynamics and Logarithmic Corrections of Symmergent Black Holes

Riasat Ali, Rimsha Babar, Zunaira Akhtar, Ali Övgün

Subject: Physical Sciences, Thermodynamics Keywords: Black hole; Symmergent gravity; Modified Lagrangian Equation; Hawking Radiation; Quantum Tunneling; WKB method. First order correction of thermodynamics

Online: 21 February 2023 (01:34:52 CET)

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