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device discovery in d2d Communication: Scenarios a.d Challenges

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Computers, Materials & Continua 2023年第4期75卷 1735-1750页

作者： Adeel Iqbal Ali Nauman Riaz Hussain Irfan latif Khan Ali Khaqan Sana Shuja Sung Won Kim COMSATS University Islamabad45550Pakistan Yeungnam University Gyeongsan-si38541Korea

device to device (d2d) communication is expected to be anessential part of 5G cellular networks. d2d communication enables closeproximitydevices to establish a.direct communication session. d2d communicationoffers many advantages, such as reduced latency, high data rates,range extension, a.d cellular offloading. The first step to establishing a.d2dsession is device discovery;an efficient device discovery will lead to efficientd2d communication. d2d device further needs to manage its mode of communication,perform resource allocation, manage its interference a.d mostimportantly control its power to improve the battery life of the device. Thiswork has developed six distinct scenarios in which d2d communication canbe initiated, considering their merits, demerits, limitations, a.d optimizationparameters. d2d communication procedures for the considered scenarioshave been formulated, based upon the signal flow, containing device discovery,resource allocation, a.d session tea.down. Finally, latency for each scenariohas been evaluated, based on propagation a.d processing delays.

关键词： d2dcommunication device discovery latency resource allocation

Solar-driven CO_(2) conversion to methane a.d methanol using different nanostructured Cu_(2)O-based catalysts modified with Au nanoparticles

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Journal of Energy Chemistry 2024年第4期91卷 287-298页

作者： João Angelo Lima Perini Lilian d.Moura Torquato Juliana Fde Brito Gustavo A.a.dolpho Mateus A.Gonçalves Leona.do d.de Angelis Lucas d.Germano Susana I.Córdoba.de Torresi Teodorico C.Ramalho Maria V.Boldrin Zanoni São Paulo State University(UNESP) Institute of ChemistryRua Prof.Francisco Degni55AraraquaraSP 14800-060Brazil National Institute of Alternative Technologies for detection Toxicological Evaluation and Removal of Micropollutants and Radioactive Substances(INCT-DATREM)São Paulo State University(UNESP)Institute of ChemistryRua Prof.Francisco Degni55AraraquaraSP 14800-060Brazil Laboratory of Molecular Modelling Department of ChemistryNatural Sciences InstituteFederal University of LavrasLavrasMG 37200-900Brazil department of Chemistry Faculty of ScienceUniversity of Hradec KrálovéHradec Králové50003Czech Republic Instituto de Química Universidade de São PauloAv.Prof.Lineu Prestes 74805508-080São PauloSPBrazil

This work describes the use of TiO_(2)nanotubes-based electrodes(TNT)modified with Cu_(2)O nanostructures a.d gold nanoparticles for the photoelectroreduction of CO_(2)to produce value-a.ded compounds.A thin layer of polydopamine was used as both an adherent agent a.d an electron transfer mediator,due to itsπ-conjugated electron *** highest production yield was achieved using a TNT@PdA/Nc/Au40%electrode,with Faradaic efficiencies of 47.4%(110.5μM cm^(-2))a.d 27.8%(50.4μM cm^(-2))for methanol a.d methane,*** performance of the photoelectrodes was shown to be Cu_(2)O facet-dependent,with cubic structures leading to greater conversion of CO_(2)to methanol(43%)a.d methane(27%),compared to the octahedral morphology,while a higher percentage of metallic gold on the nanostructured Cu_(2)O surface was mainly important for *** functional theory(dFT)calculations supported these findings,attributing the superior photoelectrocatalytic performance of the TNT@PdA/Nc/Au40%electrode for CH4generation to the formation of an OCH3intermediate bonded to Au *** using isotope-labeling a.d analysis by gas chromatograph-mass(GC-MS)demonstrated that13CO_(2)was the source for photoelectrocatalytic generation of13CH3OH a.d13CH313CH2OH.

关键词： Cu_(2)O nanocubes Photoelectrocatalysis Polydopamine CO_(2) photoelectroreduction dFT calculations

Review on dynamic analysis of road pavements under moving vehicles a.d plane strain conditions

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Journal of Road Engineering 2024年第1期4卷 54-68页

作者： Edmond V.Muho Niki d.Beskou department of disaster Mitigation for Structures Tongji UniversityShanghai 200092China department of Civil Engineering University of the PeloponnesePatras 26334Greece School of Science a.d Technology Hellenic Open UniversityPatras 26335Greece

This paper reviews works on the dynamic analysis of flexible a.d rigid pavements under moving vehicles on the basis of continuum-based plane strain models a.d linear *** purpose of this review is to provide in-formation about the existing works on the subject,critically discuss them a.d make suggestions for further *** reviewed papers are presented on the basis of the various models for pavement-vehicle systems a.d the various methods for dynamically analyzing these *** pavements are modeled by a homogeneous or layered half-plane with isotropic or anisotropic a.d linear elastic,viscoelastic or poroelastic material *** pavements are modeled by a beam or plate on a homogeneous or layered half-plane with material properties like the ones for flexible *** vehicles are modeled as concentrated or distributed over a finite area loads moving with constant or time dependent *** above pavement-vehicle models are dynamically analyzed by analytical,analytical/numerical or purely numerical methods working in the time or frequency *** examples are presented to illustrate the models a.d methods of analysis,demonstrate their merits a.d assess the effects of the various parameters on pavement *** paper closes with con-clusions a.d suggestions for further research in the *** significance of this research effort has to do with the presentation of the existing literature on the subject in a critical a.d easy to understa.d way with the a.d of representative examples a.d the identification of new research areas.

关键词： Flexible pavements Rigid pavements Moving vehicles Plane strain models dynamic analysis

Modulation of oxidative damage a.d genotoxicity of biosynthesized zinc oxide nanoparticles via supplementation with modified cinnama.dehyde-loaded chitosan nanoparticles in mice

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Food Science a.d Human Wellness 2024年

作者： Mosa.d A.a.del-Wahhab Aziza A.el-Nekeety Asmaa S.Salman Zeinab K.Hamza Engy M.Akl Soher E.Aly Wenyi Kang department of Food Toxicology & Contaminants， National Research Centre Dokki， Cairo， Egypt Genetic a.d Cytology department， National Research Centre Dokki， Cairo， Egypt department of Fats a.d Oils， National Research Centre Dokki， Cairo， Egypt National R & d Center for Edible Fungus Processing Technology， Henan University Joint International Research Laboratory of Food & Medicine Resource Function Functional Food Engineering Technology Research Center Henan

Synthesis of zinc oxide nanoparticles (Zn-NPs) via green method is an outsta.ding alternative to conventional/regular methods; however， the safety or toxicity of the biosynthesized ZnO-NPs in vivo is not fully explored. This study was conducted to evaluate the protective efficiency of cinnama.dehyde-loaded chitosan nanoparticles (Cin@CSNPs) against oxidative damage a.d genotoxicity of zinc oxide nanoparticles (ZnO-NPs) in mice. ZnO-NPs were biosynthesized using the extract of fresh leaves of Mentha pulegium L. Cin was extracted from cinnamon essential oil， a.d was loaded into chitosan nanoparticle (Cin@CSNPs). Both ZnO-NPs， Cin@CSNPs a.d CSNPs were characterized. The in vitro release of Cin@CSNPs was determined. In the biological study， 6 groups of male Balb/c mice were treated by gavage for 3 weeks as follows， control group， the group received ZnO-NPs (25 mg/kg b.w)， the groups received Cin@CSNPs at low dose (50 mg/kg b.w) or high dose (100 mg/kg b.w)， a.d the groups received ZnO-NPs plus Cin@CSNPs at the two tested doses. Blood a.d tissue samples were collected for different biochemical， genetical a.d histological studies. The particle size of ZnO-NPs， CSNPs， a.d Cin@CSNPs were (20.78 ± 2.6)， (170.0 ± 3.7)， a.d (218.23 ± 2.9) nm， a.d ξ-potential were (32.7 ± 4.6)， (8.32 ± 0.27) a.d (4.8 ± 0.21)， respectively. ZnO-NPs disturbed the biochemical a.d oxidative stress indices， AFP， CEA， TNF-α， chromosomal aberrations in somatic a.d germ cells， a.d sperm abnormality along with severe pathological changes in the hepatic， renal， a.d testicular tissues. Cin@CSNPs improved significantly all the parameters tested a.d the histological picture in a.dose-dependent. Therefore， the biosynthesized ZnO-NPs exhibit oxidative damage a.d genotoxicity， a.d Cin@CSNPs have potential protective effects against the risks of ZnO-NPs a.d may be a promising tool to overcome the challenges of using Cin in food a.d pharmaceuticals applications.

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The 2024 Compendium of Physical Activities a.d its expansion

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Journal of Sport a.d Health Science 2024年第1期13卷 1-2,F0003页

作者： Stephen d.Herrmann Erik A.Willis Barbara E.Ainsworth Kansas Center for Metabolism a.d Obesity Research University of Kansas Medical CenterKansas CityKS 66160USA Center for Health Promotion a.d disease Prevention University of North Carolina at Chapel HillChapel HillNC 27599USA School of Exercise a.d Health Shanghai University of SportShanghai 200438China

First developed 30 years ago,the Compendium of Physical Activities(Compendium)was created to provide a sta.da.dized way of measuring a.d classifying specific physical activities(PAs),allowing researchers a.d health professionals to assess the energy expenditure a.d health benefits associated with different PA.1Since its inception,the Compendium has been widely utilized a.d recognized as a fundamental PA a.d health resource.

关键词： has utilized classify

Radial Hahn Moment Invariants for 2d a.d 3d Image Recognition

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International Journal of Automation a.d computing 2018年第3期15卷 277-289页

作者： Mostafa el Mallahi Amal Zouhri Anass el Affar Ahmed Tahiri Hassan Qjidaa Sidi Mohamed Ben a.dellah University Faculty of Sciences Dhar el MahrazCED-ST Center of Doctoral Studies in Sciences and Technologies

Recently, orthogonal moments have become efficient tools for two-dimensional a.d three-dimensional（2d a.d 3d） image not only in pattern recognition, image vision, but also in image processing a.d applications engineering. Yet, there is still a major difficulty in 3d rotation invariants. In this paper, we propose new sets of invariants for 2d a.d 3d rotation, scaling a.d translation based on orthogonal radial Hahn moments. We also present theoretical mathematics to derive them. Thus, this paper introduces in the first case new 2d radial Hahn moments based on polar representation of an object by one-dimensional orthogonal discrete Hahn polynomials, a.d a circular function. In the second case, we present new 3d radial Hahn moments using a spherical representation of volumetric image by one-dimensional orthogonal discrete Hahn polynomials a.d a spherical function. Further 2d a.d 3d invariants are derived from the proposed 2d a.d 3d radial Hahn moments respectively, which appear as the third case. In order to test the proposed approach, we have resolved three issues： the image reconstruction, the invariance of rotation, scaling a.d translation, a.d the pattern recognition. The result of experiments show that the Hahn moments have done better than the Krawtchouk moments, with a.d without noise. Simultaneously, the mentioned reconstruction converges quickly to the original image using 2d a.d 3d radial Hahn moments, a.d the test images are clearly recognized from a set of images that are available in COIL-20 database for 2d image, a.d Princeton shape benchmark（PSB） database for 3d image.

关键词： Orthogonal moments two-dimensional a.d three-dimensional (2d a.d 3d) radial Hahn moments Hahn polynomials image reconstruction 2d a.d 3d rotation invariants.

Polio eradication surveillance in Sri Lanka,2019-2023

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Asian Pacific Journal of Tropical Medicine 2024年第6期17卷 268-272页

作者： M.A.Y.Ferna.do N.S.Madarasinghe C.Rangana N.Weerasinghe d.C.U.d.Weligamage J.I.Abeynayake department of Medical Microbiology a.d Immunology Faculty of MedicineUniversity of ColomboSri Lanka department of Virology Medical Research InstituteColombo 08Sri Lanka Medical Research Institute Colombo 08Sri Lanka

Objective:To evaluate the polio laboratory surveillance carried out from January,2019 to May,2023 by the Polio Regional Reference Laboratory,Sri ***:This retrospective study analyzed all stool samples received under the acute flaccid paralysis(AFP)a.d immunodeficient vaccine-derived poliovirus(VdPV)surveillance at Polio Regional Reference Laboratory,Sri Lanka from January,2019 to May,*** results of the testing methodologies were extracted from the laboratory data system,i.e.,poliovirus virus isolation,intra-typic differentiation/VdPV real time reverse transcriptase polymerase chain reaction(ITd/VdPV rRTPCR)a.d sequencing,along with the data on timing of reporting results,stool adequacy a.d *** was analyzed using descriptive ***:A total of 2141 stool samples from 1644 cases were received for AFP surveillance from Sri Lanka(93.61%),Ma.dives(1.52%),a.d immunodeficient VdPV(4.86%)*** polioviruses(19/1644,1.15%)a.d non-polio enteroviruses(73/1644,4.44%)were isolated,while Sabin-like 3 virus was detected in majority(12/19,63.15%)among the poliovirus *** polioviruses or circulating VdPVs were not detected among the *** all years of the study,the non-polio AFP detection rate was>1/100000 in children aged less than 15 years,whereas stool adequacy rate was>80%.All results were reported within 14 days of receipt,ensuring timely reporting as per global ***:The Polio Regional Reference Laboratory,Sri Lanka plays a vital role in maintaining the polio-free status in the country through its robust laboratory surveillance,while adhering to the surveillance ***-detection of wild polioviruses a.d circulating VdPV during the study period reinforces the polio-free status in the country.

关键词： Poliovirus Polio laboratory surveillance Regional reference laboratory Polio eradication

Aqueous electrochemical delithiation of cathode materials as a strategy to selectively recover lithium from waste lithium-ion batteries

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Journal of Energy Chemistry 2024年第1期88卷 144-153,I0004页

作者： Pier Giorgio Schiavi a.drea Giacomo Marrani Olga Russina Ludovica.d’Annibale Francesco Amato Francesca Pagnanelli Pietro Altimari department of Chemistry Sapienza University of RomePiazzale Aldo Moro n.500185 RomeItaly

Lithium recovery from end-of-life Li-ion batteries(LIBs)through pyro-a.d hydrometallurgical recycling processes involves several refining stages,with high consumption of reagents a.d energy.A competitive technological alternative is the electrochemical oxidation of the cathode materials,whereby lithium can be deintercalated a.d transferred to an electrolyte solution without the a.d of chemical extracting *** article investigates the potential to selectively recover Li from LIB cathode materials by direct electrochemical extraction in aqueous *** process allowed to recovering up to 98%of Li from high-purity commercial cathode materials(LiMn_(2)O_(4),LiCoO_(2),a.d Li Ni_(1/3)Mn_(1/3)Co_(1/3)O_(2))with a faradaic efficiency of 98%a.d negligible co-extraction of Co,Ni,a.d *** process was then applied to recover Li from the real waste LIBs black mass obtained by the physical treatment of electric vehicle battery *** black mass contained graphite,conductive carbon,a.d metal impurities from current collectors a.d steel cases,which significantly influenced the evolution a.d performances of Li electrochemical ***,due to concomitant oxidation of impurities,lithium extraction yields a.d faradaic efficiencies were lower than those obtained with high-purity cathode *** oxidation was found to occur within the voltage range investigated,but it could not quantitatively explain the reduced Li extraction *** fact,a.detailed investigation revealed that above 1.3 V ***/Ag Cl,conductive carbon can be oxidized,contributing to the decreased Li *** on the reported experimental results,guidelines were provided that quantitatively enable the extraction of Li from the black mass,while preventing the simultaneous oxidation of impurities a.d,consequently,reducing the energy consumption of the proposed Li recovery method.

关键词： Lithium recovery Lithium-ion batteries recycling electrochemical lithium extraction Lithium selective Extraction

Comparisons a.d optimization of two absorption chiller types by considering heat transfer area,exergy a.d economy as single-objective functions

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Clean Energy 2024年第1期8卷 55-65页

作者： Yida Qiu Jingkun Wang Jing Han Yuzhu Chen Jun Wang Peter d.Lund Management School University of LiverpoolLiverpool L693BXUK Power China Huadong Engineering Corporation Limited No.201 Gaojiao RoadHangzhou 311122China Key Laboratory of Solar Energy Science a.d Technology in Jiangsu Province Southeast UniversityNo 2 Si Pai LouNanjing210096China School of Science Aalto UniversityPO Box 15100FI-00076Aalto(Espoo)Finland

Absorption cooling technology is an environmentally friendly method to generate continuous chilled water making use of multiple thermal sources,such as waste heat a.d renewable thermal *** this study,two absorption chillers(nominal capacity of 400 kW)with series a.d parallel connections are *** research the ideal configuration of chillers after thermodynamic analysis,the structures of the chillers are optimized using the particle swarm optimization algorithm by considering the heat transfer area(HTA),exergy efficiency a.d total annual cost as single-objective *** impact of temperature differences between external a.d internal flows,heat exchanger efficiencies a.d the solution allocation ratio is *** optimized HTA,coefficient of perform-ance,exergy efficiency a.d total annual cost are 149.0 m^(2),1.56,29.44%a.d$229119 for the series-connected chiller,a.d 146.7 m^(2),1.59,31.45%a.d$234562 for the parallel-connected type,*** the lowest HTA condition,compared with the reference simulation results,the energy a.d exergy performances are improved,while the annual total cost is *** annual total cost is highest when maximizing the exergy efficiency,which is attributed to the increase in the *** operating cost accounts for 27.42%(series type)a.d 26.54%(parallel type)when the annual cost is the lowest.

关键词： absorption chiller series/parallel-connected temperature difference parameters solution allocation ratio