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On Perron’s Formula and the Prime Numbers

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Advances in Pure Mathematics 2024年第6期14卷 487-494页

作者： michael M. Anthony Department of Engineering Enertron Inc. Hohenwald Tennessee USA

The Riemann hypothesis is intimately connected to the counting functions for the primes. In particular, Perron’s explicit formula relates the prime counting function to fixed points of iterations of the explicit formula with particular relations involving the trivial and non-trivial roots of the Riemann Zeta function and the Primes. The aim of the paper is to demonstrate this relation at the fixed points of iterations of explicit formula, defined by functions of the form limT∈Ν→∞fT(zw)=zw,where, zwis a real number.

关键词： Perron Fixed Points Iterations Number Theory Riemann Hypothesis Iterations Invariance Primes

The Formation of Oscillation Patterns Based on the Planetary Gravitational Field and Their suitability for Earthquake Prediction

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Journal of High Energy Physics, Gravitation and Cosmology 2024年第1期10卷 149-157页

作者： michael E. Nitsche Z & s Institut Grosselfingen Germany

The fluctuating planetary gravitational field influences not only activities on the sun but also on the Earth. A special correlation function describes the harmonics of these fluctuations. Groups of earthquakes form oscillation patterns that differ significantly from randomly chosen control groups. These patterns are suitable as an element of an AI for the probability of earthquakes.

关键词： Planetary Gravitational Field Earthquake Prediction AI

Pyroelectric Plate with Magnetoelectric Effect

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Journal of Applied Mathematics and Physics 2024年第5期12卷 1616-1625页

作者： Pavel Grinfeld michael Grinfeld Mathematics Department Drexel University Philadelphia USA The U.s. Army Research Laboratory WMRD Aberdeen Proving Ground USA

In dynamic problems the electric and magnetic fields are inseparable. At the same time, a multitude of electrostatic and magnetostatic effects permit mutually independent description. This separation appears to be possible and thermodynamically consistent when the bulk energy density depends only on the polarization density or, alternatively, on the magnetization density. However, when the bulk energy density depends simultaneously on the both densities, then, the electrostatic and magnetostatic effects should be studied together. There appear interesting cross-effects;among those are the change of the internal electrostatic field inside a specimen under the influence of the external magnetic fields, and vice versa. Below, in the framework of thermodynamic approach the boundary value problem for magnetoelectric plate is formulated and analyzed. The exact solution is established for the isotropic pyroelectric plate.

关键词： Electricity and Magnetism Pyroelectrics and Pyromagnetics Thermodynamics of Electromagnetostatics Exact solutions Validation and Verification

Compression of Battery X-Ray Tomography Data with Machine Learning

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Chinese Physics Letters 2024年第9期41卷 153-158页

作者： Zipei Yan Qiyu Wang Xiqian Yu Jizhou Li michael K.-P.Ng Department of Electronic Engineering The Chinese University of Hong KongHong KongChina Beijing National Laboratory for Condensed Matter Physics and Institute of PhysicsChinese Academy of SciencesBeijing 100190China Huairou Division Institute of PhysicsChinese Academy of SciencesBeijing 101400China Center of Materials science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China CUHK shenzhen Research Institute Shenzhen 518057China Department of Mathematics Hong Kong Baptist UniversityHong KongChina

With the increasing demand for high-resolution x-ray tomography in battery characterization,the challenges of storing,transmitting,and analyzing substantial imaging data necessitate more efficient *** data compression methods struggle to balance reduction ratio and image quality,often failing to preserve critical details for accurate *** study proposes a machine learning-assisted compression method tailored for battery x-ray imaging *** physics-informed representation learning,our approach significantly reduces file sizes without sacrificing meaningful *** validate the method on typical battery materials and different x-ray imaging techniques,demonstrating its effectiveness in preserving structural and chemical *** results show an up-to-95 compression ratio while maintaining high fidelity in the projection and reconstructed *** proposed framework provides a promising solution for managing large-scale battery x-ray imaging datasets,facilitating significant advancements in battery research and development.

关键词： battery Battery details

Factors associated with change in frailty scores and long-term outcomes in older adults with coronary artery disease

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Journal of Geriatric Cardiology 2021年第3期18卷 196-203页

作者： s.michael Gharacholou Joshua P.slusser Ryan J.Lennon Carolyn R.Flock Leslie T.Cooper Patricia A.Pellikka Jorge Brenes salazar Mandeep singh Department of Cardiovascular Medicine Mayo ClinicJacksonvilleFLUSA Department of Cardiology Mayo Health SystemLa CrosseWIUSA Department of Biostatistics Mayo ClinicRochesterMNUSA Department of Cardiovascular Medicine Mayo ClinicRochesterMNUSA

OBJECTIVE Older adults with coronary artery disease(CAD)are at risk for ***,little is known regarding transition in frailty measures over time or its impact on *** sought to determine the association of temporal change in frailty with long-term outcome in older adults with *** We re-assessed for phenotypic frailty using the Fried index(0=not frail;1−2=pre-frail;≥3 frail)in a cohort of CAD patients≥65 years old at 2 time points 5 years *** associated with frailty worsening were assessed with scatterplots and outcomes estimated using the Kaplan-Meier *** models were used to assess the risk of worsening frailty on *** There were 45 subjects that completed both baseline and 5-year Fried frailty *** age was 74.6±5.9 and 30(67%)were *** incidence increased over time:baseline(3%frail,37%pre-frail);5 years(10%frail,40%pre-frail).Baseline factors were not predictors of worsening frailty score,while both slower walk time(r=0.46;P=0.004)and diminishing grip strength(r=−0.39;P=0.01)were associated with worsening frailty *** follow-up(median 5.2 years),long-term major adverse cardiac event(MACE)free survival(P=0.12)or hospitalization(P=0.98)was not different for those with worsening frailty score(referent:improved/unchanged frailty).Frailty worsening had a trend towards increased risk of MACE(HR=1.86;95%CI:0.65−5.27,P=0.25).CONCLUsIONs Frailty transitions,specifically,declines in walk time and grip strength,were strongly associated with worsening frailty score in a cohort of older adults with CAD than were baseline indices,though frailty change status was not independently associated with MACE outcomes.

关键词： coronary unchanged score

The expanding amyloid family:structure,stability,function,and pathogenesis

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四川生理科学杂志 2024年第1期46卷 106-106页

作者： michael R sawaya Departments of Chemistry and Biochemistry and Biological Chemistry UCLA Los Angeles CA 90095 USA Howard Hughes Medical Institute UCLA Los Angeles CA 90095 USA UCLA-DOE Institute UCLA Los Angeles CA 90095 USA Molecular Biology Institute UCLA Los Angeles CA 90095 USA Laboratory of Physical Chemistry ETH Zurich Vladimir Prelog Weg 2 CH-8093 Zurich Switzerland

The hidden world of amyloid biology has suddenly snapped into atomic-level focus,revealing over 80 amyloid protein fibrils,both pathogenic and *** globular proteins,amyloid proteins flatten and stack into unbranched *** still,a single protein sequence can adopt wildly different two-dimensional conformations,yielding distinct fibril polymorphs.

关键词： amyloid pathogenesis expanding

Investigation of Acoustomagnetoelectric Effect in Bandgap Graphene by the Boltzmann Transport Equation

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World Journal of Condensed Matter Physics 2024年第1期14卷 10-20页

作者： Raymond Edziah samuel s. Bentsiefi Kwadwo Dompreh Anthony Twum Emmanuel Kofi Amewode patrick Mensah-Amoah Ebenezer T. Tatchie Cynthia Jebuni-Adanu samuel Y. Mensah Department of Physics University of Cape Coast Cape Coast Ghana Department of Physics Education University of Education Winneba Ghana

We study the acoustomagnetoelectric (AME) effect in two-dimensional graphene with an energy bandgap using the semiclassical Boltzmann transport equation within the hypersound regime, (where represents the acoustic wavenumber and is the mean free path of the electron). The Boltzmann transport equation and other relevant equations were solved analytically to obtain an expression for the AME current density, consisting of longitudinal and Hall components. Our numerical results indicate that both components of the AME current densities display oscillatory behaviour. Furthermore, geometric resonances and Weiss oscillations were each defined using the relationship between the current density and surface Acoustic Wave (sAW) frequency and the inverse of the applied magnetic field, respectively. Our results show that the AME current density of bandgap graphene, which can be controlled to suit a particular electronic device application, is smaller than that of (gapless) graphene and is therefore, more suited for nanophotonic device applications.

关键词： Boltzmann Transport Equation Acoustomagnetoelctric Effect surface Acoustic Wave Gapless Graphene Weiss Oscillations

China-Caribe:más cerca que nunca

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今日中国（西文版） 2024年第3期 34-35页

作者： michael ZÁRATE 不详

Improving Lives China-Africa cooperation propels space industry,drives socio-economic progress

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ChinAfrica 2024年第5期16卷 28-29页

作者： EHIZUELEN michael MITCHELL OMORUYI Centre for Nigerian studies Institute of African StudiesZhejiang Normal University

In the past,outer space was primarily the domain of a few powerful countries and generally considered separate from broader concerns of human security and ***,in recent times,space technology development has been a dynamic arena in which the majority of the world’s countries,including countries across the continent of Africa,are actively engaged to address their most pressing socio-economic *** the turn of the millennium,countries across Africa have demonstrated growing interest in developing their space capabilities to address their most pressing challenges,including but not limited to climate change,poverty,terrorism,and forced migration.

关键词： Africa primarily challenges