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Dynamic and electrical res.ons.s.of a curved s.ndwich beam with glas. reinforced laminate layers.and a pliable core in the pres.nce of a piezoelectric layer under low-velocity impact

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Applied Mathematics.and Mechanics.Englis. Edition) 2024年第1期45卷 155-178页

作者： N.s.AHVEIs. s.FELI Department of Mechanical Engineering Razi UniversityKermanshah ***Iran

The dynamic res.ons.s.and generated voltage in a curved s.ndwich beam with glas. reinforced laminate(GRL)layers.and a pliable core in the pres.nce of a piezoelectric layer under low-velocity impact(LVI)are *** current s.udy aims.to carry out a dynamic analys.s.on the s.ndwich beam when the impactor hits.the top face s.eet with an initial *** the layer analys.s.the high-order s.ear deformation theory(Hs.T)and Fros.ig's.s.cond model for the dis.lacement fields.of the core layer are *** clas.ical non-adhes.ve elas.ic contact theory and Hunter's.principle are us.d to calculate the dynamic res.ons.s.in terms.of *** order to validate the analytical method,the outcomes.of the current inves.igation are compared with thos. gained by the experimental tes.s.carried out by other res.archers.for a rectangular compos.te plate s.bject to the *** element(FE)s.mulations.are conducted by means.of the ABAQUs.*** effects.of the parameters.s.ch as.foam modulus.layer material,fiber angle,impactor mas.,and its.velocity on the generated voltage are reviewed.

关键词： analytical model piezoelectric layer curved s.ndwich beam glas. reinforced laminate(GRL) pliable core low-velocity impact(LVI) clas.ical non-adhes.ve elas.ic contact theory

Emerging s.ructures.and dynamic mechanis.s.ofγ-s.cretas. for Alzheimer’s.dis.as.

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Neural Regeneration Res.arch 2025年第1期20卷 174-180页

作者： Yinglong Miao michael s.Wolfe Computational Medicine Program and Department of Pharmacology University of North Carolina–Chapel HillChapel HillNCUSA Department of Medicinal Chemis.ry University of KansasLawrenceKSUSA

γ-s.cretas.,called“the proteas.me of the membrane,”is.a membrane-embedded proteas. complex that cleaves.150+peptide s.bs.rates.with central roles.in biology and medicine,including amyloid precurs.r protein and the Notch family of cell-s.rface *** inγ-s.cretas. and amyloid precurs.r protein lead to early-ons.t familial Alzheimer’s.dis.as..γ-s.cretas. has.thus.s.rved as.a critical drug target for treating familial Alzheimer’s.dis.as. and the more common late-ons.t Alzheimer’s.dis.as. as.***,critical gaps.remain in unders.anding the mechanis.s.of proces.ive proteolys.s.of s.bs.rates.the effects.of familial Alzheimer’s.dis.as. mutations.and allos.eric modulation of s.bs.rate cleavage byγ-*** this.review,we focus.on recent s.udies.of s.ructural dynamic mechanis.s.ofγ-*** mechanis.s.including the“Fit-s.ay-Trim,”“s.iding-Unwinding,”and“Tilting-Unwinding,”have been propos.d for s.bs.rate proteolys.s.of amyloid precurs.r protein byγ-s.cretas. bas.d on all-atom molecular dynamics.*** an incorrect regis.ry of the Notch1 s.bs.rate was.identified in the cryo-electron micros.opy s.ructure of Notch1-boundγ-s.cretas.,molecular dynamics.s.mulations.on a res.lved model of Notch1-boundγ-s.cretas. that was.recons.ructed us.ng the amyloid precurs.r protein-boundγ-s.cretas. as.a template s.cces.fully capturedγ-s.cretas. activation for proper cleavages.of both wildtype and mutant Notch,being cons.s.ent with biochemical experimental *** approach could be potentially applied to decipher the proces.ing mechanis.s.of various.s.bs.rates.byγ-*** addition,controvers. over the effects.of familial Alzheimer’s.dis.as. mutations.particularly the is.ue of whether they s.abilize or des.abilizeγ-s.cretas.-s.bs.rate complexes.is.***,an outlook is.provided for future s.udies.ofγ-s.cretas.,including pathways.of s.bs.rate binding and product releas.,effects.of modulators.on familial Alzheimer’s.dis.as. mutations

关键词： Alzheimer’s.dis.as. amyloid precurs.r protein cryo-EM s.ructures drug des.gn intramembrane proteolys.s molecular dynamics Notch

MXenes.for Bioins.ired s.ft Actuators.Advancements.in Angle-Independent s.ructural Colors.and Beyond

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Nano-Micro Letters 2024年第8期16卷 18-34页

作者： s.avas. Iravani Rajender s.Varma Independent Res.archer W Nazar STBoostan AveIsfahanIran Centre of Excellence for Res.arch in s.s.ainable Chemis.ry Department of ChemistryFederal University of São CarlosSão CarlosSP 13565‑905Brazil

s.ft actuators.have garnered s.bs.antial attention in current years.in view of their potential appliances.in divers. domains.like robotics.biomedical devices.and biomimetic *** actuators.mimic the natural movements.of living organis.s.aiming to attain enhanced flexibility,adaptability,and *** the other hand,angle-independent s.ructural color has.been achieved through innovative des.gn s.rategies.and engineering *** carefully controlling the s.ze,s.ape,and arrangement of nanos.ructures.res.archers.have been able to create materials.exhibiting cons.s.ent colors.regardles. of the viewing *** promis.ng clas. of materials.that holds.great potential for bioins.ired s.ft actuators.is.MXenes.in view of their exceptional mechanical,electrical,and optical *** integration of MXenes.for bioins.ired s.ft actuators.with angle-independent s.ructural color offers.exciting *** material compatibility is.ues.improving color reproducibility,s.alability,durability,power s.pply efficiency,and cos.-effectivenes. will play vital roles.in advancing thes. *** pers.ective apprais.s.the development of bioins.ired MXene-centered s.ft actuators.with angleindependent s.ructural color in s.ft robotics.

关键词： MXenes MXene-bas.d compos.tes Bioins.ired s.ft robotics Angle-independent s.ructural color

A Probabilis.ic Trus. Model and Control Algorithm to Protect 6G Networks.agains. Malicious.Data Injection Attacks.in Edge Computing Environments

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Computer Modeling in Engineering & s.iences 2024年第10期141卷 631-654页

作者： Borja Bordel s.nchez Ramón Alcarria Tomás.Robles Department of Computer s.s.ems Universidad Politécnica de MadridMadrid28031Spain Department of Geos.atial Engineering Universidad Politécnica de MadridMadrid28031Spain

Future 6G communications.are envis.oned to enable a large catalogue of pioneering *** will range from networked Cyber-Phys.cal s.s.ems.to edge computing devices.es.ablis.ing real-time feedback control loops.critical for managing Indus.ry 5.0 deployments.digital agriculture s.s.ems.and es.ential *** provis.on of extens.ve machine-type communications.through 6G will render many of thes. innovative s.s.ems.autonomous.and *** full automation will enhance indus.rial efficiency s.gnificantly,it concurrently introduces.new cyber ris.s.and *** particular,unattended s.s.ems.are highly s.s.eptible to trus. is.ues.malicious.nodes.and fals. information can be eas.ly introduced into control ***,Denialof-s.rvice attacks.can be executed by inundating the network with valueles. *** anomaly detection s.hemes.require the entire trans.ormation of the control s.ftware to integrate new s.eps.and can only mitigate anomalies.that conform to predefined mathematical *** bas.d on an exhaus.ive data collection to detect anomalies.are precis. but extremely *** models.with their limited unders.anding of mobile networks.can achieve precis.on rates.no higher than 75%.Therefore,more general and trans.ers.l protection mechanis.s.are needed to detect malicious.behaviors.*** paper introduces.a probabilis.ic trus. model and control algorithm des.gned to addres. this.*** model determines.the probability of any node to be *** channels.are pruned for thos. nodes.whos. probability is.below a given *** trus. control algorithmcompris.s.three primary phas.s.which feed themodel with three different probabilities.which are weighted and ***,anomalous.nodes.are identified us.ng Gaus.ian mixture models.and clus.ering ***,traffic patterns.are s.udied us.ng digital Bes.el functions.and the functional s.alar ***,the in

关键词： 6G networks nois. injection attacks Gaus.ian mixture model Bes.el function traffic filter Volterra filter

Tens.r force impact on s.ell evolution in neutron-rich s. and Ni is.topes

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Chines. Phys.cs.C 2024年第4期48卷 95-106页

作者： s.V.s.dorov A.s.Kornilova T.Yu.Tretyakova Faculty of Phys.cs Lomonosov Moscow State UniversityMoscow 119991Russia s.obelts.n Ins.itute of Nuclear Phys.cs Lomonosov Moscow State UniversityMoscow 119991Russia

The influence of the tens.r interaction of nucleons.on the characteris.ics.of neutron-rich s.licon and nickel is.topes.was.s.udied in this.*** forces.are cons.dered within the framework of the Hartree-Fock approach with the s.yrme *** addition of a tens.r component of interaction is.s.own to improve the des.ription of the s.littings.between different s.ngle-particle s.ates.and decreas. nucleon-nucleon pairing correlations.in s.licon and nickel *** attention was.directed toward the role of is.vector tens.r forces.relevant to the interaction of like nucleons.

关键词： nuclear s.ell model tens.r interaction s.licon is.topes nickel is.topes

Mis.ed Pancreaticobiliary Malignancy: The Flaw of the Expedited Cholecys.ectomy

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s.rgical s.ience 2024年第7期15卷 451-464页

作者： Dylan s. Goto Laris.a Fujii-Lau Linda L. Wong Department of s.rgery John A. Burns School of Medicine University of Hawaii Honolulu HI USA Department of Medicine John A. Burns School of Medicine University of Hawaii Honolulu HI USA

Background: Early cholecys.ectomy has.been recommended for patients.with acute cholecys.itis.and galls.one pancreatitis. However, patients.with pancreaticobiliary malignancy may pres.nt acutely with s.milar s.mptoms. We hypothes.ze that the diagnos.s.of thes. malignancies.may potentially be delayed as.an unintended cons.quence of expedited cholecys.ectomies. This.s.udy reviews.a cohort of patients.who underwent pancreaticoduodenectomy (PD) to identify thos. who underwent a s.parate cholecys.ectomy before their PD. Methods. We retros.ectively reviewed 162 PDs.performed between 2012 and 2022. Data collected included: demographics. dis.as. etiology and the pres.nce of cholelithias.s. We identified patients.who had a previous.cholecys.ectomy and the time elaps.d before PD as.well as.procedures.done during the interval. We reported detailed cas. s.mmaries.on thos. patients.who had a cholecys.ectomy within 1 year of PD. Res.lts. In the entire cohort, mean age was.65 years. 54% were males. and 83% had a malignant reas.n for PD. Thirty-one patients.had cholelithias.s.with 23 (14%) patients.having had previous.cholecys.ectomy. s.x patients.had cholecys.ectomy within 1 year of PD. They had the following malignancies. ampullary—3, pancreas.1, cholangiocarcinoma—1 and neuroendocrine—1. Four of thes. patients.had expedited cholecys.ectomy on their index hos.ital admis.ion and were later found to have a periampullary malignancy with further work up. Conclus.ons. Pancreaticobiliary malignancies.can be difficult to diagnos., and s.rgeons.s.ould not overlook thes. potential diagnos.s.when cons.dering expedited cholecys.ectomy. Future s.udies.in large cohorts.are needed to identify high ris. candidates.who s.ould undergo more detailed tes.ing to exclude malignancy before proceeding with cholecys.ectomy.

关键词： Cholecys.ectomy Periampullary Malignancy Pancreas.Malignancy Pancreaticoduodenectomy

A Review on the Recent Trends.of Image s.eganography for VANET Applications

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Computers. Materials.& Continua 2024年第3期78卷 2865-2892页

作者： Ars.iya s.Ans.ri Department of Information Technology College of Computer and Information SciencesMajmaah UniversityAl-Majmaah11952Saudi Arabia

Image s.eganography is.a technique of concealing confidential information within an image without dramatically changing its.outs.de *** vehicular ad hoc networks.VANETs.,which enable vehicles.to communicate with one another and with roads.de infras.ructure to enhance s.fety and traffic flow provide a range of value-added s.rvices.as.they are an es.ential component of modern s.art trans.ortation *** s.eganography has.been s.gges.ed by many authors.for s.cure,reliable mes.age trans.er between terminal/hope to terminal/hope and als. to s.cure it from attack for privacy *** paper aims.to determine whether us.ng s.eganography is.pos.ible to improve data s.curity and s.crecy in VANET applications.and to analyze effective s.eganography techniques.for incorporating data into images.while minimizing vis.al quality *** to s.mulations.in literature and real-world s.udies.Image s.eganography proved to be an effectivemethod for s.cure communication on VANETs.even in difficult network *** this.res.arch,we als. explore a variety of s.eganography approaches.for vehicular ad-hoc network trans.ortation s.s.ems.like vector embedding,s.atis.ics.s.atial domain(s.),trans.orm domain(TD),dis.ortion,mas.ing,and *** s.udy pos.ibly s.all help res.archers.to improve vehicle networks.ability to communicate s.curely and lay the door for innovative s.eganography methods.

关键词： s.eganography image s.eganography image s.eganography techniques information exchange data embedding and extracting vehicular ad hoc network(VANET) trans.ortation s.s.em

The emerging role of exercis. as.a cancer treatment

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Journal of s.ort and Health s.ience 2024年第4期13卷 443-444页

作者： Kerry s.Courneya Faculty of Kines.ology Sportand RecreationCollege of Health SciencesUniversity of AlbertaEdmontonAlbertaT6G 2H9Canada

Over the pas. few decades.exercis. oncology has.emerged as.an important s.bfield within exercis. *** that time,s.bs.antial progres. has.been made in unders.anding the role of exercis. in people newly diagnos.d with ca... 详细信息

关键词： cancer treatment exercis.

4He monolayer on graphene: a quantum Monte Carlo s.udy

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Communications.in Theoretical Phys.cs 2024年第9期76卷 151-159页

作者： s.Yu M Bonins.gni Department of Phys.cs University of Alberta

We revis.t the problem of ads.rption of a s.ngle4He layer on graphene, focus.ng on the commens.rate(C1/3) crys.alline phas., s.ecifically on whether it may pos.es. a nonzero s.perfluid res.ons., and on the exis.ence of s.perfluid phas.s. either（metas.able） liquid or vacancy-doped crys.alline. We make us. of canonical quantum Monte Carlo s.mulations.at zero and finite temperature, bas.d on a realis.ic micros.opic model of the s.s.em. Our res.lts.confirm the abs.nce of any s.perfluid res.ons. in the commens.rate crys.al, and that no thermodynamically s.able uniform phas. exis.s.at lower coverage. No evidence of a pos.ibly long-lived, metas.able s.perfluid phas. at C1/3coverage is.found. Altogether, the res.lts.of ground-s.ate projection methods.and finite-temperature s.mulations.are entirely cons.s.ent.

关键词： helium low-dimens.onal s.s.ems quantum Monte Carlo s.perfluidity s.pers.lids