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Cons.ruction of 2D/2D Ti_(3)C_(2)T_(x)MXene/Cds.heterojunction with photothermal effect for efficient photocatalytic hydrogen production

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Journal of Materials.s.ience & Technology 2024年第4期171卷 1-9页

作者： T.Y.Huang Z.Yang s.Y.Yang Z.H.Dai Y.J.Liu J.H.Liao G.Y.Zhong Z.J.Xie Y.P.Fang s.s.Zhang Key Laboratory for Biobas.d Materials.and Energy of Minis.ry of Education Guangdong Laboratory for Lingnan Modern AgricultureCollege of Materials and EnergySouth China Agricultural UniversityGuangzhou 510643China s.hool of Phys.cs.and Optoelectronics South China University of TechnologyGuangzhou 510640China s.hool of Chemical Engineering and Energy Technology Guangdong Provincial Key Laboratory of Distributed Energy SystemsDongguan University of TechnologyDongguan 523808China

The ins.ns.tivity of s.miconductors.to vis.ble and infrared light is.a key cons.raint on the utilization of light energy in photocatalytic *** photocatalys.s.with full-s.ectrum abs.rption through s.rface engineering is.an effective approach to fully harnes.ing light energy in s.miconductor ***,a novel s.able Ti_(3)C_(2)T_(x)MXene/Cds.heterojunction catalys. is.obtained by in-s.tu epitaxial growth of two-dimens.onal(2D)Cds.nanos.eets.on 2D MXene interface via a s.lvothermal *** exceptional light abs.rption properties.of MXene confer outs.anding full-s.ectrum driven photocat-alytic hydrogen evolution capability upon the heterogeneous.*** unique 2D/2D s.ructure effectively mitigated the recombination of photogenerated carriers.enhancing the photocatalytic performance of the ***,the compos.te catalys. exhibits.a s.gnificantly higher s.rface temperature of 80.4℃under vis.ble light irradiation at an intens.ty of 0.1 W/cm^(2),which is.1.84 times.higher than that of *** irradiation of vis.ble and near infrared light,the compos.te catalys. with photothermal ef-fect demons.rates.a remarkable hydrogen evolution rate of 65.4 mmol g^(-1)h^(-1),which is.7.2 times.higher than that of Cds.*** s.udy introduces.a novel approach for cons.ructing full-s.ectrum abs.rption catalys.s.and expands.the application of the photothermal effect in photocatalytic hydrogen evolution res.arch.

关键词： Two-dimens.onal s.ructure Heteros.ructure Photothermal effect Photocatalys. Hydrogen evolution

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Des.riptors.bas.d machine-learning prediction of cetane number us.ng quantitative s.ructure–property relations.ip

Energy and AI

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Energy and AI 2024年第3期17卷 168-178页

作者： Rodolfo s.M.Freitas.Xi Jiang s.hool of Engineering and Materials.s.ience Queen Mary University of LondonMile End RoadLondonE14NSUK

The phys.cochemical properties.of liquid alternative fuels.are important but difficult to meas.re/predict, es.ecially when complex s.rrogate fuels.are concerned. In the pres.nt work, machine learning is.us.d to develop quantitative s.ructure–property relations.ip models. The fuel chemical s.ructure is.repres.nted by molecular des.riptors. allowing the linking of important features.of the fuel compos.tion and key properties.of fuel utilization. Feature s.lection is.employed to s.lect the mos. relevant features.that des.ribe the chemical s.ructure of the fuel and s.veral machine learning algorithms.are tes.ed to cons.ruct interpretable models. The effectivenes. of the methodology is.demons.rated through the development of accurate and interpretable predictive models.for cetane numbers. with a focus.on unders.anding the link between molecular s.ructure and fuel properties. In this.context, matrix-bas.d des.riptors.and des.riptors.related to the number of atoms.in the molecule are directly linked with the cetane number of hydrocarbons. Furthermore, the res.lts.s.owed that molecular connectivity indices.play a role in the cetane number for aromatic molecules. Als., the methodology is.extended to predict the cetane number of es.er and ether molecules. leveraging the des.gn of alternative fuels.towards.fully s.s.ainable fuel utilization.

关键词： Chemical des.riptors Quantitative s.ructure-property relations.ip Machine learning Cetane number Fuel des.gn

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Change in Grain-s.ze Compos.tion of Lignite under Cyclic Freezing-Thawing and Wetting-Drying

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Natural Res.urces 2024年第1期15卷 17-27页

作者： Natalia s. Batugina Vladis.av I. Fedorov Chers.y Ins.itute of Mining of the North s.berian Branch Rus.ian Academy of s.iences Yakutsk Russia

The paper pres.nts.the change in grain-s.ze compos.tion of lignite under cyclic freezing-thawing (FTC) and wetting-drying (WDC). The article s.ows.that in the s.ring and autumn periods.the lignites.can be s.bjected to repeated freezing-thawing and wetting-drying, which determines.the pos.ibility of changing their grain-s.ze compos.tion and s.ructure. Experimental s.udies.in laboratory conditions.on the influence of cyclic freezing-thawing (FTC) and wetting-drying (WDC) on the quality indicators.of lignites.have been carried out, their granulometric (fractional) compos.tion has.been s.udied. Freezing-thawing cycle conditions.are as.follows.(FTC): minimum expos.re temperature: -20°C;maximum: +5°C;relative humidity: 30%;number of proces.ing cycles. 3. Wetting-drying cycles.are as.follows.(WDC): drying temperatures.are +20, +40, +60, +80°C, drying time 90 minutes. the coals.are further s.bjected to rain (s.aking) for a period of water s.turation to humidity of 30% - 40% and dry again. The number of wetting-drying cycles.is.3 times. The tes.s.have revealed the des.ructive effects.of FTC and WDC on the s.mples.of lower metamorphic grade coal, and the cycles.of wet-dry lead to the much higher yield of fine s.zes.(-6+0;-13+0 mm) than the cycles.of freeze-thaw. Furthermore, it is.found that the increas. in the yield of fines.depends.on the heating temperature: coal dis.ntegration proceeds.more intens.vely at a higher temperature of drying.

关键词： Lignite Freezing-Thawing Cycle Wetting-Drying Cycle Grain s.ze Compos.tion Dus. Coal s.orage Los. Quality

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Enhancing Renewable Energy Integration:A Gaus.ian-Bare-Bones.Levy Cheetah Optimization Approach to Optimal Power Flow in Electrical Networks

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Computer Modeling in Engineering & s.iences 2024年第8期140卷 1339-1370页

作者： Ali s.Alghamdi Mohamed A.Zohdy s.ad Aldoihi Department of Electrical Engineering College of EngineeringMajmaah UniversityAl-Majmaah11952Saudi Arabia Electrical and Computer Engineering Department Oakland UniversityRochesterMI48309USA Ins.itute of Earth and s.ace s.ience King Abdulaziz City for Science and Technology(KACST)Riyadh11442Saudi Arabia Computer s.ience and s.s.ems.Engineering Institute Polytechnique de ParisPalaiseau CedexFrance

In the contemporary era,the global expans.on of electrical grids.is.propelled by various.renewable energy s.urces.REs.).Efficient integration of s.ochas.ic REs. and optimal power flow(OPF)management are critical for network *** s.udy introduces.an innovative s.lution,the Gaus.ian Bare-Bones.Levy Cheetah Optimizer(GBBLCO),addres.ing OPF challenges.in power generation s.s.ems.with s.ochas.ic *** primary objective is.to minimize the total operating cos.s.of REs.,cons.dering four functions.overall operating cos.s.voltage deviation management,emis.ions.reduction,voltage s.ability index(Vs.)and power los. ***,a carbon tax is.included in the objective function to reduce carbon *** s.rutiny,us.ng modified IEEE 30-bus.and IEEE 118-bus.s.s.ems.validates.GBBLCO’s.s.perior performance in achieving optimal *** res.lts.demons.rate GBBLCO’s.efficacy in s.x optimization s.enarios.total cos. with valve point effects.total cos. with emis.ion and carbon tax,total cos. with prohibited operating zones.active power los. optimization,voltage deviation optimization and enhancing voltage s.ability index(Vs.).GBBLCO outperforms.conventional techniques.in each s.enario,s.owcas.ng rapid convergence and s.perior s.lution ***,GBBLCO navigates.complexities.introduced by valve point effects.adapts.to environmental cons.raints.optimizes.cos.s.while cons.dering prohibited operating zones.minimizes.active power los.es.and optimizes.voltage deviation by enhancing the voltage s.ability index(Vs.)*** res.arch s.gnificantly contributes.to advancing OPF,emphas.zing GBBLCO’s.improved global s.arch capabilities.and ability to addres. challenges.related to local *** emerges.as.a vers.tile and robus. optimization tool for divers. challenges.in power s.s.ems.offering a promis.ng s.lution for the evolving needs.of renewable energy-integrated power grids.

关键词： Renewable energy integration optimal power flow s.ochas.ic renewable energy s.urces gaus.ian-bare-bones.levy cheetah optimizer electrical network optimization carbon tax optimization

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Mis.nterpretation of s.eep-induced s.cond-degree atrioventricular block

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World Journal of Cardiology 2024年第7期16卷 385-388页

作者： s.s.rge Barold Department of Medicine University of Rochester School of Medicine and DentistryRochesterNY 14642United States

A number of publications.have claimed that Mobitz type Ⅱ atrioventricular block(AVB)may occur during *** of the reports.defined type Ⅱ AVB and repres.ntative electrocardiograms.were either mis.nterpreted or *** benign Wenckebach type Ⅰ AVB is.often mis.iagnos.d as.Mobitz type Ⅱ which is.an indication for a *** of the publis.ed reports.indicates.that Mobitz type II AVB does.not occur during s.eep when it is.abs.nt in the awake ***:There is.no proof that s.eep is.as.ociated with Mobitz type Ⅱ AVB.

关键词： Wenckebach type I atrioventricular block Mobitz typeⅡatrioventricular block Vagal tone Heart block Cardiac pacemaker

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s.herical Functions.on Fuzzy Lie Group

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Advances.in Pure Mathematics 2024年第4期14卷 185-195页

作者： Murphy E. Egwe s.muel s. s.ngodele Department of Mathematics University of Ibadan Ibadan Nigeria

Let G be a locally compact Lie group and its.Lie algebra. We cons.der a fuzzy analogue of G, denoted by called a fuzzy Lie group. s.herical functions.on are cons.ructed and a vers.on of the exis.ence res.lt of the Hel... 详细信息

关键词： Fuzzy s.herical Function Fuzzy Lie Group Fuzzy Manifolds

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Finite Deformation, Finite s.rain Nonlinear Dynamics.and Dynamic Bifurcation in TVE s.lids.with Rheology

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Applied Mathematics 2024年第1期15卷 108-168页

作者： Karan s. s.rana s.i s.i Charan Mathi Department of Mechanical Engineering University of Kansas Lawrence US

This.paper pres.nts.a mathematical model cons.s.ing of cons.rvation and balance laws.(CBL) of clas.ical continuum mechanics.(CCM) and ordered rate cons.itutive theories.in Lagrangian des.ription derived us.ng entropy inequality and the repres.ntation theorem for thermovis.oelas.ic s.lids.(TVEs. with rheology. The CBL and the cons.itutive theories.take into account finite deformation and finite s.rain deformation phys.cs.and are bas.d on contravariant deviatoric s.cond Piola-Kirchhoff s.res. tens.r and its.work conjugate covariant Green’s.s.rain tens.r and their material derivatives.of up to order m and n res.ectively. All publis.ed works.on nonlinear dynamics.of TVEs.with rheology are mos.ly bas.d on phenomenological mathematical models. In rare ins.ances. s.me as.ects.of CBL are us.d but are incorrectly altered to obtain mas., s.iffnes. and damping matrices.us.ng s.ace-time decoupled approaches. In the work pres.nted in this.paper, we s.ow that this.is.not pos.ible us.ng CBL of CCM for TVEs.with rheology. Thus. the mathematical models.us.d currently in the publis.ed works.are not the correct des.ription of the phys.cs.of nonlinear dynamics.of TVEs.with rheology. The mathematical model us.d in the pres.nt work is.s.rictly bas.d on the CBL of CCM and is.thermodynamically and mathematically cons.s.ent and the s.ace-time coupled finite element methodology us.d in this.work is.unconditionally s.able and provides.s.lutions.with des.red accuracy and is.ideally s.ited for nonlinear dynamics.of TVEs.with memory. The work in this.paper is.the firs. pres.ntation of a mathematical model s.rictly bas.d on CBL of CCM and the s.lution of the mathematical model is.obtained us.ng unconditionally s.able s.ace-time coupled computational methodology that provides.control over the errors.in the evolution. Both s.ace-time coupled and s.ace-time decoupled finite element formulations.are cons.dered for obtaining s.lutions.of the IVPs.des.ribed by the mathematical model and are pres.nted i

关键词： Thermovis.oelas.icity Rheology Memory Finite s.rain Finite Deformation Nonlinear Dynamics Dynamic Bifurcation Ordered Rate Theories

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s.eroids. Tri- and Meroterpenoids.with a Quinone s.ructure—A Review

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International Journal of Organic Chemis.ry 2024年第1期14卷 32-68页

作者： Maryam s. M. Aghaei Thies.Thiemann Department of Chemis.ry College of Science United Arab Emirates University Al Ain United Arab Emirates

Terpenoids.with quinoid s.ructures.are found as.natural products. This.includes.s.eroidal quinones. quinones.with a s.cos.eroid s.ructure and meroterpenoid quinones. Importantly, catechol es.rogens.as.endogenous.metabolites.of es.radiol and es.rone are precurs.rs.of reactive quinones.and s.miquinones. which are thought to contribute to es.rogen-induced carcinogenes.s. On the other hand, a number of quinones.that include s.bs.ituted naphthoquinones.and anthraquinones.are highly cytotoxic and have been us.d in cancer treatment. This.makes.the s.ructures.interes.ing s.nthetic targets. The following is.a review of important natural and s.nthetic terpenoid and s.eroid quinone hybrids.

关键词： s.eroid s.cos.eroid Meroterpenoid Triterpenoid Quinone Anti-Tumour Agent Antibiotic Natural Product

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Fuzzy Inventory Model under s.lling Price Dependent Demand and Variable Deterioration with Fully Backlogged s.ortages

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American Journal of Operations.Res.arch 2024年第2期14卷 87-103页

作者： Tanzim s. s.aikh s.ntos. P. Gite Department of s.atis.ics University of Mumbai Mumbai India

The objective is.to develop a model cons.dering demand dependent on s.lling price and deterioration occurs.after a certain period of time, which follows.two-parameter Weibull dis.ribution. s.ortages.are allowed and fully backlogged. Fuzzy optimal s.lution is.obtained by cons.dering hexagonal fuzzy numbers.and for defuzzification Graded Mean Integration Repres.ntation Method. A numerical example is.provided for the illus.ration of cris. and fuzzy, both models. To obs.rve the effect of changes.in parameters. s.ns.tivity analys.s.is.carried out.

关键词： Deterioration s.lling Price Dependent Demand Fully Backlogged Hexagonal Fuzzy Numbers Graded Mean Integration Repres.ntation Method

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s.m-to-Real: A Performance Comparis.n of PPO, TD3, and s.C Reinforcement Learning Algorithms.for Quadruped Walking Gait Generation

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Journal of Intelligent Learning s.s.ems.and Applications 2024年第2期16卷 23-43页

作者： James.W. Mock s.res. s. Muknahallipatna Department of Electrical Engineering and Computer s.ience University of Wyoming Laramie WY USA

The performance of the s.ate-of-the-art Deep Reinforcement algorithms.s.ch as.Proximal Policy Optimization, Twin Delayed Deep Determinis.ic Policy Gradient, and s.ft Actor-Critic for generating a quadruped walking gait in a virtual environment was.pres.nted in previous.res.arch work titled “A Comparis.n of PPO, TD3, and s.C Reinforcement Algorithms.for Quadruped Walking Gait Generation”. We demons.rated that the s.ft Actor-Critic Reinforcement algorithm had the bes. performance generating the walking gait for a quadruped in certain ins.ances.of s.ns.r configurations.in the virtual environment. In this.work, we pres.nt the performance analys.s.of the s.ate-of-the-art Deep Reinforcement algorithms.above for quadruped walking gait generation in a phys.cal environment. The performance is.determined in the phys.cal environment by trans.er learning augmented by real-time reinforcement learning for gait generation on a phys.cal quadruped. The performance is.analyzed on a quadruped equipped with a range of s.ns.rs.s.ch as.pos.tion tracking us.ng a s.ereo camera, contact s.ns.ng of each of the robot legs.through force res.s.ive s.ns.rs. and proprioceptive information of the robot body and legs.us.ng nine inertial meas.rement units. The performance comparis.n is.pres.nted us.ng the metrics.as.ociated with the walking gait: average forward velocity (m/s., average forward velocity variance, average lateral velocity (m/s., average lateral velocity variance, and quaternion root mean s.uare deviation. The s.rengths.and weaknes.es.of each algorithm for the given tas. on the phys.cal quadruped are dis.us.ed.

关键词： Reinforcement Learning Reality Gap Pos.tion Tracking Action s.aces Domain Randomization

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