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Value Function Mechanism in WSNs-Based Mango Plantation Monitoring System

Computers, Materials and Continua 2024年第3期80卷 3733-3759页

作者： Sung W.-t. i.a i.g.t. Hsiao S.-J. Department of Electri.al Engineering National Chin-Yi University of Technology Taichung 411030 Taiwan Department of informatics Management Politeknik Negeri Sriwijaya Palembang 30139 Indonesia Department of information technology Takming University of Science and Technology Taipei City 11451 Taiwan

Mango fruit is one of the main fruit commodities that contributes to tai.an’s income. the implementation of technology is an alternative to increasi.g.t.e quality and quantity of mango plantation product productivity. in this study, a Wireless Sensor Networks (“WSNs”)-based intelligent mango plantation monitoring system will be developed that implements deep reinforcement learning (DRL) technology in carrying out prediction tasks based on three classifi.ations: “opti.al,” “sub-opti.al,” or “not-opti.al” conditions based on three parameters including humidity, temperature, and soil moisture. the key idea is how to provide a precise decision-making mechanism in the real-time monitoring system. A value function-based will be employed to perform DRL model called deep Q-network (DQN) which contributes in optimizi.g.t.e future reward and performi.g.t.e precise decision recommendation to the agent and system behavior. the WSNs experiment result indi.ates the system’s accuracy by capturi.g.t.e real-time environment parameters is 98.39%. Meanwhile, the results of comparative accuracy model experiments of the proposed DQN, individual Q-learning, uniform coverage (UC), and Naïve Bayes classifier (NBC) are 97.60%, 95.30%, 96.50%, and 92.30%, respectively. From the results of the comparative experiment, it can be seen that the proposed DQN used in the study has the most opti.al accuracy. testing with 22 test scenarios for “opti.al,” “sub-opti.al,” and “not-opti.al” conditions was carried out to ensure the system runs well in the real-world data. the accuracy percentage which is generated from the real-world data reaches 95.45%. From the results of the cost analysis, the system can provide a low-cost system compared to the conventional system. Copyright © 2024 the Authors. Published by tech Science Press.

关键词： deep Q-network (DQN) deep reinforcement learning (DRL) intelligent monitoring system wireless sensor networks (WSNs)

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Effectiveness of external prestressing in enhanci.g.t.e non-ductile hanger failure mechanism in reinforced concrete inverted t-beams

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Frontiers of Structural and Civil Engineering 2024年第7期18卷 1050-1065页

作者： Ahmed M.AttA Reda N.BEHiRY Mohammed i.HARAZ Structural Engineering Department Faculty of EngineeringTanta UniversityTanta 33511Egypt Nile Higher institute for Engineering and technology Mansoura 11001Egypt

Recently,inverted t-beams have been used in reinforced concrete(RC)bridges to support transverse precast *** t-beams,contrary to practice with conventional beams,are loaded on the flanges upper *** loading configuration causes hanger failure due to the generation of verti.al tensile stresses near the bottom of the *** key purpose of this study is to investi.ate the efficiency of verti.al external prestressing stainless-steel bars in miti.ating non-ductile hanger failure in reinforced concrete inverted *** experimental study on six inverted-t beams,includi.g.t.o un-strengthened specimens,was carried *** study showed that the value of the prestressing level had a considerable impact on the performance of hanger mechanism in relation to crack pattern,ulti.ate loads,cracking behavior,load-deflection,strains,and *** experimental results indi.ated that the suggested method for strengthening inverted t-beams had effi.acy in reduci.g.t.e seriousness of the non-ductile hanger failure and resulted in a strength increase of up to 53% when compared to that of the un-strengthened ***,two analyti.al models for esti.ati.g.t.e hanger capacity and the average crack width of the strengthened RC inverted t-beams were *** models that were proposed exhibited a high degree of agreement with the experimental results.

关键词： RC bridges inverted t-beams strengthening hanger failure external prestressing

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Near resonance vibration isolation on a levered-dual response(LEDAR)Coulomb-damped system by differential preloads/offsets in linear springs

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Applied Mathematics and Mechanics(English Edition) 2024年第6期45卷 1033-1050页

作者： t.i.tOLUWALOJU C.K.tHEiN D.HALiM Department of Mechani.al Materials and Manufacturing EngineeringUniversity of Nottingham Ningbo ChinaNingbo 315100Zhejiang ProvinceChina Nottingham Ningbo Chi.a Beacons of Excellence Research and innovation institute University of Nottingham Ningbo ChinaNingbo 315048Zhejiang ProvinceChina

the levered-dual response(LEDAR)Coulomb-damped system attains near resonant vibration isolation by differential preloads/offsets in linear *** takes the advantages of both the preloads/offsets in linear springs and the guiderail friction for realizing different levels of vibration *** isolation capacities are investi.ated on the strategies with both the horizontal and verti.al guiderails,with the horizontal rail only,and without *** compressive preloads generally result in the consumption of most of the initial exci.ation energy so as to overcome the potential *** isolation onsets at the frequency ratio of 1∓0.095 on the left-hand side(LHS)and the right-hand side(RHS)of the lever are relative to the load plate *** observed near resonant isolation thus makes the LEDAR system a candi.ate for the isolation of the mechani.al systems about resonance while opening a path for simultaneous harvesterisolation functions and passive functions at extreme frequencies.

关键词： lever ratio Coulomb damping preload tension/compression isolation band/depth offset potential

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Design,simulation,and testing of a tunable MEMS multi-threshold inertial switch

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Microsystems & Nanoengineering 2024年第2期10卷 37-46页

作者： Qiu Xu Rodrigo t.Rocha Yousef Algoos Eric Feron Mohammad i.Younis Faculty of Electronic information Engineering Huaiyin Institute of TechnologyHuai’an223003PR China Computer Electrical and Mathematical Science and Engineering DivisionKing Abdullah University of Science and TechnologyThuwal23955-6900Saudi Arabia Piezoelectric Microsystem technologies Silicon Austria LabsVillach9524Austria Physi.al Sciences and Engineering Division King Abdullah University of Science and TechnologyThuwal23955Saudi Arabia Mechani.al Engineering Department State University of New YorkBinghamtonNY13902USA

this paper presents a tunable multi-threshold micro-electromechani.al inertial switch with adjustable threshold *** demonstrated device combines the advantages of accelerometers in providing quanti.ative acceleration measurements and g-threshold switches in saving power when in the i.active state upon experiencing acceleration below the *** designed proof-of-concept device with two thresholds consists of a cantilever microbeam and two stationary electrodes placed at different positions in the sensing *** adjustable threshold capability and the effect of the shock duration on the threshold acceleration are analyti.ally investi.ated using a nonlinear beam *** are shown for the relationships among the applied bias voltage,the duration of shock impact,and the tunable *** fabri.ated prototypes are tested using a shock-table *** analyti.al results agree with the experimental *** designed device concept is very promising for the classifi.ation of the shock and impact loads in transportation and healthcare appli.ations.

关键词： tunable acceleration testing

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Hydroxyapatite composites with carbon allotropes:Preparation,properties,and appli.ations

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Particuology 2024年第5期88卷 239-265页

作者： Boris i.Kharisov Oxana V.Kharissova Lucy t.gonzález Yolanda Peña Méndez igor E.Uflyand i.alia gómez de la Fuente Universi.ad Autónoma de Nuevo León Ave.UniversidadCiudad UniversitariaSan Nicolás de los GarzaNuevo León 66455Mexico tecnologico de Monterrey Escuela de Ingeniería y CienciasMonterreyNuevo Leon 64890Mexico Department of Chemistry Southern Federal UniversityRostov-on-DonRussia

Hydroxyapatite(HA)and its composites with inorganic additives,dopants,and polymers is a rapidly developing branch in the materials *** particular,carbon allotropes are widely used in these composites being widely applied for medi.al *** a gap of insufficient generali.ation of recent achievements in the field of the HA/Carbon composites,in this review we present the state of the art of the field of HA composites and hybrids with classic carbon allotropes and *** composites are known for carbon nanotubes,nanofibers,graphene and its oxidized forms,as well as,in a lesser grade,for graphite,fullerenes,nanodiamonds,carbon nanofoams,*** composites can be fabri.ated by a variety of classic and less-common methods,such as co-precipi.ation(with or without ultrasonic treatment),CVD,hot isostatic pressing,hydrothermal,spark plasma sintering,biomimetic minerali.ation,thermal and plasma spray,electrochemi.al and electrophoretic deposition,self-assembling,3D printing,electrospinning,and lyophili.ation,among *** of various synthesis techniques can be also carried out for composite *** or synthetic HA can be used as it is for further interaction with carbon allotropes or it can be first prepared and then reacted with carbon counterpart;simi.arly,carbon allotropes can be introduced into the interaction with HA directly or they can be first synthesized,in particular from *** biocompatible composites can be produced in the form of coatings,powders,and scaffolds and can additionally contain quanti.ative amounts of third phases,frequently natural or synthetic *** these composites,especially with O-containing functionalizing groups,HA di.advantages could be considerably decreased with simultaneous enhancement of mechani.al properties,becoming simi.ar to human bone,chemi.al stability and biocompatibility,as well as possessing anti.acterial ***→g reduction and higher HA decoration were obs

关键词： Hydroxyapatite Carbon nanotubes graphene Quantum dots Fullerenes Nanodiamonds

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Development of endemicity and conservation importance indices for tropi.al forests and the floral diversity assessment of *** in Benguet,Philippines

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Journal of Mountain Science 2024年第3期21卷 786-804页

作者： Johndale Rein t.BULLONg Jim P.SiLVERiO Joanna i.aLAFAg Maricel A.gURON Jones t.NAPALDEt Department of Environmental Science Benguet State UniversityLa Trinidad 2601Philippines Department of Biology Benguet State UniversityLa Trinidad 2601Philippines

the scientific community faces the challenge of measuring progress toward biodiversity targets and indices have been traditionally ***,recent inventories in secondary tropi.al mountain forests usi.g.t.aditional biodiversity indices have yielded results that are indistinct with pri.ary *** shows the need to develop complementary indices that goes beyond species count but integrates the distribution and conservation status of the *** study developed endemicity and conservation importance index for tropi.al forest that incorporated the distribution and conservation status of the *** indices were applied to ***,a remnant pri.ary mossy forest in Buguias,Benguet,Philippines,that resulted to endemicity index of 81.07 and conservation importance index of *** these with secondary forest sites with comparable Shannon-Wiener,Simpson,Evenness and Margalef’s indices,our endemicity and conservation indices clearly differentiates pri.ary forest(our study site)with higher values from secondary forests with much lower ***,we are proposi.g.t.ese indices for a direct but scientifi.ally-informed identifi.ation of specific sites for conservation and protection in tropi.al ***,our study documented a total of 168 vascular plant species(79 endemic and 12 locally threatened species)in *** are of tropi.al elements for both generic and species levels with some temperate elements that could be attributed to the site's high elevation and semi-temperate *** are important baseline information for conservation plans and monitoring of tropi.al mossy forests.

关键词： Endemicity index Conservation importance index Cordillera Central Range Floristic element Jaccard index of Simi.arity

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Measurement of yields and angular distributions ofγ-quanta from the interaction of 14.1 MeV neutrons with oxygen,phosphorus,and sulfur

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Chinese Physics C 2024年第3期48卷 79-92页

作者： D.N.grozdanov N.A.Fedorov S.B.Dabylova Yu.N.Kopatch i.N.Ruskov V.R.Skoy t.Yu.tretyakova C.Hramco P.i.Kharlamov g.V.Pampushik P.g.Filonchik A.V.Andreev Joint institute for Nuclear Research(JiNR) DubnaRussia institute for Nuclear Research and Nuclear Energy Bulgarian Academy of SciencesSofiaBulgaria Faculty of Physics Lomonosov Moscow State UniversityMoscowRussia L.N.gumilyov Eurasian National University AstanaKazakhstan Skobeltsyn institute of Nuclear Physics Moscow State UniversityMoscowRussia institute of Chemistry of Moldova ChisinauRepublic of Moldova Moscow institute of Physics and technology MoscowRussia

A study of the inelastic scattering of neutrons with an energy of 14.1 MeV on the nuclei of oxygen,phosphorus,and sulfur was performed at the tANgRA facility at JiNR(Dubna).the experiment aimed to refine existing data and obtain new data on the yields and angular distributions ofγ-quanta emitted by the studied nuclei due to neutron-induced nuclear reactions usi.g.t.e tagged neutron *** types of detector systems were used to registerγ-***γ-ray yields were measured using a high-purity germanium(HPge)*** angular distributions ofγ-rays were obtained using a system of 18 scintillation detectors based on bismuth germanite Bi_(4)ge_(3)O_(12)(BgO)located around the *** performed experiments measured the yields of two transitions for the reaction of tagged neutrons with 16O,nine transitions for the reaction with ^(31)P,and nine transitions for the reaction with ^(32)S for the first *** angular anisotropy of theγ-radiation accompanyi.g.t.e inelastic scattering of neutrons with an energy of 14.1 MeV on ^(31)P nuclei was also measured for the first time.

关键词： tagged neutron method yields of gamma-quanta high-resolution gamma-spectrometry neutron-nuclear reactions neutron scattering

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Cancer-associated fibroblasts express CD1d and acti.ate invariant natural killer t cells under cellular stress

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Cellular & Molecular immunology 2024年第1期21卷 91-94页

作者： Shengduo Pei Jonas Sjölund Yueyun Pan Kristian Pietras Mi.ael C.i.Karlsson Department of Microbiology Tumor and Cell BiologyKarolinska InstitutetStockholmSweden Division of translational Cancer Research Department of Laboratory MedicineLund University Cancer CentreLund UniversityLundSweden

invariant natural killer t(iNKt)cells are part of the family of unconventional t cells,and they recognize glycolipid antigens presented on the MHC class i like molecule CD1^([1]).in humans there are five CD1 molecules named CD1a to CD1e,whereas mice use only CD1d for lipid ***,iNKt cells can elicit both cytotoxicity simi.arly to conventional CD8 t cells and secrete cytokines that influence the adaptive immune response including providing direct t cell help to B cells^([2]).in the context of tumors,they can use both release of granzyme B and use Fas-mediated mechanisms for killing of tumor *** iNKt cells use a restricted tCR repertoire and CD1 molecules are non-heterogenous the risk of graft vs host disease is limited and thus these t cells have been an attractive option for off the shelf immunotherapy to treat cancer^([3]).

关键词： killer CD1d Cancer

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generalized time-dependent generator coordi.ate method for induced fission dynamics

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Frontiers of physics 2024年第4期19卷 1-12页

作者： B.Li D.Vretenar t.Nikšić J.Zhao P.W.Zhao J.Meng State Key Laboratory of Nuclear Physics and technology School of PhysicsPeking UniversityBeijing 100871China Physics Department Faculty of ScienceUniversity of Zagreb10000 ZagrebCroatia Center for Circuits and Systems Peng Cheng LaboratoryShenzhen 518055China

the generalized time-dependent generator coordi.ate method(tD-gCM)is extended to include pairing *** correlated gCM nuclear wave function is expressed in terms of time-dependent generator states and weight *** particle–hole channel of the effective interaction is determined by a Hamiltonian derived from an energy density functional,while pairing is treated dynami.ally in the standard BCS approxi.ation with time-dependent pairi.g.t.nsor and single-particle occupation *** the inclusion of pairing correlations,various time-dependent phenomena in open-shell nuclei can be described more *** model is applied to the description of saddle-to-scission dynamics of induced *** generalized tD-gCM charge yields and total kinetic energy distribution for the fission of 240Pu,are compared to those obtained usi.g.t.e standard time-dependent density functional theory(tD-DFt)approach,and with avai.able data.

关键词： nuclear density functional theory generator coordi.ate method fission dynamics

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ion heat transport in electron cyclotron resonance heated L-mode plasma on the t-10 tokamak

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Plasma Science and technology 2024年第4期26卷 52-60页

作者： V.A.KRUPiN M.R.NURgALiEV A.R.NEMEtS i.a.ZEMtSOV S.D.SUNtSOV t.B.MYALtON D.S.SERgEEV N.A.SOLOVEV D.V.SARYCHEV D.V.RYJAKOV S.N.tUgARiNOV N.N.NAUMENKO National Research Centre“Kurchatov institute” Moscow 123182Russia Bauman Moscow State techni.al University Moscow 105005Russia institution“Project Center itER” Moscow 123098Russia JSC“SOLAR” Minsk 220034Belarus

Anomalous ion heat transport is analyzed in the t-10 tokamak plasma heated with electron cyclotron resonance heating(ECRH) in second-harmonic extra-ordi.ary mode. Predictive modeling with empiri.al scaling for Ohmi.al heat conductivity shows that in ECRH plasmas the calculated ion temperature could be overesti.ated, so an increase of anomalous ion heat transport is required. to study this effect two scans are presented: over the EC resonance position and over the ECRH power. the EC resonance position varies from the high-field side to the low-field side by variation of the toroi.al magnetic field. the scan over the heating power is presented with on-axis and mixed ECRH regimes. Discharges with high anomalous ion heat transport are obtained in all considered regimes. in these discharges the power balance ion heat conductivity exceeds the neoclassi.al level by up to 10 times. the high ion heat transport regimes are distinguished by three parameters: the ratio te/ti, the normalized electron density gradient R/■, and the ion–ion collisionality νii~*. the combi.ation of high te/ti, high νii~*, and R/■=6-10 results in values of normalized anomalous ion heat fluxes up to 10 times higher than in the low transport scenario.

关键词： tokamak L-mode electron cyclotron resonance heating ion heat transport

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