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b.ack hole shadows in Einstein-b.l-Rob.nson gravity

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Chinese Physics C 2024年第5期48卷 272-283页

作者： b.Hamil b.C.Lütfüoğlu Lab.ratoire de Physique Mathématique et Sub.tomique Facultédes Sciences ExactesUniversitéConstantine 1ConstantineAlgeria Department of Physics University of Hradec KrálovéRokitanského 6250003 Hradec KrálovéCzechia

Gravity models given b. higher-order scalar curvature corrections are b.lieved to b.ar important consequences. Einstein-b.l-Rob.nson (Eb.) gravity with quartic curvature modification motivated Sajadi et al. to explore static spherically symmetric b.ack hole solutions using perturb.tive methods. In this study, inspired b. their work, we investigate AdS b.ack hole shadows in Eb. gravity and demonstrate how the gravity parameter alters the energy emission rate. Finally, we address the same prob.em in the presence of plasma, b.cause the b.ack holes are thought to b. surrounded b. a medium that changes the geodesic of photons.

关键词： b.ack hole shadows Einstein-b.l-Rob.nson gravity plasma

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Soils in extraterrestrial space: Need for studies under microgravity

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Pedosphere 2024年第1期34卷 13-14页

作者： M.b.KIRKHAM Department of Agronomy Kansas State UniversityManhattan KS 66506USA

With the increased interest of plants in space, gravity cannot b. ignored when studying soil-plant-water relations. Therefore, it is important to understand the water relations of soils under zero gravity in space or under reduced gravity on the Moon or Mars. This paper outlines the prob.ems of moving water in soils under zero gravity or microgravity, as well as growing plants in these soils. It is suggested that microgravity experiments could b. done on Earth using b.th soils and plants. Results from such experiments could b. used to grow plants when mankind estab.ishes b.ses on the Moon and Mars.

关键词： soils soil b.ses

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Water Vapor Information from Satellite and Its Applications

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Advances in Atmospheric Sciences 2024年第1期41卷 188-189页

作者： b.J.SOHN School of Earth and Environmental Sciences Seoul National UniversitySeoul 08826Korea

Water vapor is a critical component of the hydrological cycle b.cause it plays a vital role in transporting water from one part of the cycle to *** vapor evaporated from surfaces such as oceans,lakes,and rivers conden... 详细信息

关键词： motion oceans lakes

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CompactChain:an efficient stateless chain for UTXO-model b.ockchain

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Frontiers of Computer Science 2024年第2期18卷 167-179页

作者： b.Swaroopa REDDY T Uday Kiran REDDY Department of Electrical Engineering Indian Institute of Technology HyderabadHyderabadTelangana 502285India

In this work,we propose a stateless b.ockchain called CompactChain,which compacts the entire state of the UTXO(Unspent Transaction Output)b.sed b.ockchain systems into two RSA *** first accumulator is called Transaction Output(TXO)commitment which represents the TXO *** second one is called Spent Transaction Output(STXO)commitment which represents the STXO *** this work,we discuss three algorithms:(i)To update the TXO and STXO commitments b. the *** miner also provides the proofs for the correctness of the updated commitments;(ii)To prove the transaction’s validity b. providing a memb.rship witness in TXO commitment and non-memb.rship witness against STXO commitment for a coin b.ing spent b. a user;(iii)To update the witness for the coin that is not yet spent;The experimental results evaluate the performance of the CompactChain in terms of time taken b. a miner to update the commitments and time taken b. a validator to verify the commitments and validate the *** compare the performance of CompactChain with the existing state-of-the-art works on stateless *** shows a reduction in commitments update complexity and transaction witness size which inturn reduces the mempool size and propagation latency without compromising the system throughput(Transactions per second(TPS)).

关键词： stateless b.ockchain RSA Accumulator STXO commitment TXO commitment UTXO Non-interactive Proof of Exponentiation(NI-PoE) Transactions per second(TPS)

Extended quantum molecular dynamics model predicts new b.eathing modes in 36Ar b.b.le nuclei

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Nuclear Science and Techniques 2024年第10期35卷 268-270页

作者： Joseph b.Natowitz Department of Chemistry and Cyclotron Institute Texas A&M UniversityCollege Station

In theoretical investigations of36Ar pub.ished b. Ge Ren et al.（Phys Lett b.138990,2024）,36Ar b.b.le nuclei,char acterized b. central density depletions,were studied using the extended quantum molecular dynamics *** novel density distrib.tions—microb.b.le,b.b.le,and cluster resonances—were identified,each showing distinc spectral signatures in the gamma-ray decay spectrum o the isoscalar monopole ***,the oscillation frequency of the b.b.le mode mirrors macroscopic b.b.le dynamics,b.idging classical and quantum phenomena in atomic *** exploration of exotic nuclei,driven b. advances in large-scale radioactive ion b.am facilities,reshapes nuclea physics,particularly as regards the complex structures and b.haviors of atomic *** structures and deforma tions[1–3]challenge traditional models.

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Closing the Experiment-Modeling-Perturb.tion Loop in Whole-b.ain Neuroscience

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Neuroscience b.lletin 2024年第8期40卷 1212-1214页

作者： Misha b.Ahrens Janelia Research Campus Howard Hughes Medical InstituteAshburnVAUSA

Understanding the mechanisms b. which the central nervous system processes information,forms memories,makes decisions,and executes actions is a challenging *** is an interdisciplinary field in which cell b.ology,anatomy,network theory,and other scientific disciplines come together to jointly push our knowledge of b.ain function forward.

关键词： execute knowledge jointly

On the Numb.r of Primes in the Interval (x, 2x) b. an Elementary Method

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Advances in Pure Mathematics 2024年第1期14卷 16-29页

作者： Sudhindra b. Kittur Independent Researcher Mumbai India

An elementary formula to know the numb.r of primes in the interval (x, 2x) close to the exact figure for a fixed x is given here. A new elementary equation is derived (a relation b.tween prime numb.rs and composite numb.rs distrib.ted in the interval [1, 2x]). An elementary method to know the numb.r of primes in a given magnitude is suitab.y placed in the form of a general formula, and we have proved it. The general formula is applied to the terms of the equation, and a tactical simplification of the terms gives rise to an expression whose verification envisages scope for its further studies.

关键词： Prime Numb.rs Composite Numb.rs Expression Integers

Quantized autoencoder(QAE)intrusion detection system for anomaly detection in resource-constrained loT devices using RT-loT2022 dataset

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Cyb.rsecurity 2024年第2期7卷 13-27页

作者： b.S Sharmila Rohini Nagapadma Depatment of Electronics and Communication Engineering The National Institute of EngineeringMysoreKarnataka 570008India

In recent years,many researchers focused on unsupervised learning for network anomaly detection in edge devices to identify *** deployment of the unsupervised autoencoder model is computationally expensive in resource-constrained edge *** study proposes quantized autoencoder(QAE)model for intrusion detection systems to detect *** is an optimization model derived from autoencoders that incorporate pruning,clustering,and integer quantization *** autoencoder uint8(QAE-u8)and quantized autoencoder float16(QAE-f16)are two variants of QAE b.ilt to deploy computationally expensive Al models into Edge ***,we have generated a Real-Time Internet of Things 2022 dataset for normal and attack *** autoencoder model operates on normal traffic during the training *** same model is then used to reconstruct anomaly traffic under the assumption that the reconstruction error(RE)of the anomaly will b. high,which helps to identify the ***,we study the performance of the autoencoders,QAE-u8,and QAE-f16 using accuracy,precision,recall,and F1 score through an extensive experimental *** showed that QAE-u8 outperforms all other models with a reduction of 70.01%in average memory utilization,92.23%in memory size compression,and 27.94%in peak CPU ***,the proposed QAE-u8 model is more suitab.e for deployment on resource-constrained IoT edge devices.

关键词： IoT constrained system

Solving the Three-Neutrino Prob.em as One of the Three-b.dy Prob.ems in Physics

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Journal of High Energy Physics, Gravitation and Cosmology 2024年第1期10卷 197-227页

作者： Zoran b. Todorovic Faculty of Electrical Engineering Department of Physics University of Belgrade Belgrade Serbia

b. using the standard PMNS (Pontecorvo-Maki-Nakagawa-Sakata) mixing matrix and applying the rule for the sum of the oscillation prob.b.lities of three neutrinos, the equations of motion were derived in which the Dirac CP violating phase appeared as an unknown quantity. The equations of motion were separately derived for each of the three possib.e transitions for flavor-neutrino oscillations. Two roots of those equations were ob.ained in the form of two formulas for the Dirac CP violating phase with opposite signs. In the mathematical sense, the connection b.tween those formulas was estab.ished in order to maintain the continuous process of oscillation of three neutrinos. This made it possib.e to calculate the numerical value for the Dirac CP violating phase, the Jarlskog invariant and to write the general form of the PMNS mixing matrix in the final form in which all its elements are defined with explicit numerical values.

关键词： Ordinary Neutrino PMNS Matrix Dirac CPV Phase Jarlskog Invariant