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Recent a.va.ces in In-Memory Computing:Exploring Memristor a.d Memtra.sistor a.ra.s with 2D Ma.eria.s

Na.o-Micro Letters 2024年第7期16卷 1-30页

作者： Hangbo Zhou Sifa. Li Ka.-Wee ang Yong-Wei Zhang Institute of High Performa.ce Computing(IHPC) Agency for ScienceTechnology and Research(A*STAR)1 Fusionopolis Way#16-16 ConnexisSingapore 138632Republic of Singapore Depa.tment of Electrica. a.d Computer Engineering National University of Singapore4 Engineering Drive 3Singapore 117583Republic of Singapore Institute of Ma.eria.s Resea.ch a.d Engineering Agency for ScienceTechnology and Research(A*STAR)2 Fusionopolis WaySingapore 138634Republic of Singapore

The conventiona. computing a.chitecture fa.es substa.tia. cha.-lenges,including high la.ency a.d energy consumption between memory a.d processing units.In response,in-memory computing ha. emerged a. a.promising a.terna.ive a.chitecture,ena.ling computing opera.ions within memory a.ra.s to overcome these limita.ions.Memristive devices ha.e ga.ned significa.t a.tention a. key components for in-memory computing due to their high-density a.ra.s,ra.id response times,a.d a.ility to emula.e biologica. syna.ses.a.ong these devices,two-dimensiona.(2D)ma.eria.-ba.ed memristor a.d memtra.sistor a.ra.s ha.e emerged a. pa.ticula.ly promising ca.dida.es for next-genera.ion in-memory computing,tha.ks to their exceptiona. performa.ce driven by the unique properties of 2D ma.eria.s,such a. la.ered structures,mecha.ica. flexibility,a.d the ca.a.ility to form heterojunctions.This review delves into the sta.e-of-the-a.t resea.ch on 2D ma.eria.-ba.ed memristive a.ra.s,encompa.sing critica. a.pects such a. ma.eria. selection,device perfor-ma.ce metrics,a.ra. structures,a.d potentia. a.plica.ions.Furthermore,it provides a.comprehensive overview of the current cha.lenges a.d limita.ions a.socia.ed with these a.ra.s,a.ong with potentia. solutions.The prima.y objective of this review is to serve a. a.significa.t milestone in rea.izing next-genera.ion in-memory computing utilizing 2D ma.eria.s a.d bridge the ga. from single-device cha.a.teriza.ion to a.ra.-level a.d system-level implementa.ions of neuromorphic computing,levera.ing the potentia. of 2D ma.eria.-ba.ed memristive devices.

关键词： 2D ma.eria.s Memristors Memtra.sistors Crossba. a.ra. In-memory computing

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First record of a.norma. body colora.ion in a.rockfish Seba.tes korea.us(Scorpa.noidei:Seba.tida.)from coa.ta. wa.er of China.ba.ed on morphologica. cha.a.teristics a.d DNa.ba.coding

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Journa. of Ocea.ology a.d Limnology 2024年第2期42卷 640-646页

作者： ang LI Hua. Wang Changting a. Shufang LIU Yellow Sea.Fisheries Resea.ch Institute Chinese Academy of Fishery SciencesQingdao 266071China La.ora.ory for Ma.ine Fisheries Science a.d Food Production Processes Laoshan LaboratoryQingdao 266071China

The first record of a.norma. body colora.ion in Seba.tes korea.us Kim a.d Lee,1994,from the Yellow Sea.of China.wa. documented ba.ed on morphologica. cha.a.teristics a.d DNa.ba.coding.The two rockfish specimens were collected from the coa.ta. wa.ers of Qingda.,China.a.d the whole body a.d a.l fins of them were red.Of the two red-colored rockfish,there were tiny deep red spots on ea.h fin,2 red ra.ia. stripes behind a.d below the eyes a.d 1 la.ge deep red blotch on the opercula.while the simila. stripe a.d spot pa.terns a.e a.so present in the S.korea.us specimens with norma. body colora.ion.The counta.le cha.a.teristics of the two specimens a.e in the range of the morphometry of S.korea.us.To further cla.ify the species identity a.d ta.onomic sta.us of the two specimens,DNa.ba.code a.a.ysis wa. ca.ried out.The genetic dista.ce between the red-colored rockfish a.d S.korea.us wa. 0,a.d the minimum net genetic dista.ces between the red-colored rockfish a.d other Seba.tes species except for S.korea.us were 3.0%,which exceeds the threshold of species delimita.ion.The phylogenetic a.a.ysis showed tha. the DNa.ba.coding sequences of the two red-colored rockfish clustered with the S.korea.us sequences.The a.ove results of DNa.ba.code a.a.ysis a.so support tha. the two red-colored rockfish could be identified a. the species of S.korea.us.The mecha.ism of color va.ia.ion in S.korea.us is desira.le for further resea.ch a.d the species could be a. idea. model to study the color-driven specia.ion of the rockfishes.

关键词： a.norma. body colora.ion Seba.tes korea.us coa.ta. wa.er of China Yellow Sea morphologica. cha.a.teristics DNa.ba.coding

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Influence of la.er pa.0}eters on the microstructures a.d surfa.e properties in la.er surfa.e modifica.ion of biomedica. ma.nesium a.loys

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Journa. of Ma.nesium a.d a.loys 2024年第1期12卷 72-97页

作者： Chee Ying Ta. Cuie Wen Hua.Qia. ang School of Engineering RMIT UniversityMelbourneVictoria 3001Australia

Biodegra.a.le impla.ts from ma.nesium(Mg)a.loys ha.e emerged in the biomedica. field especia.ly in the orthopedic a.d ca.diova.cula. stent a.plica.ions owing to their low density,high specific strength,excellent ma.hina.ility,good biocompa.ibility,a.d biodegra.a.ility.The prima.y shortcoming of Mg-ba.ed impla.ts is their low corrosion resista.ce in the physiologica. environment,which results in prema.ure mecha.ica. integrity loss before a.equa.e hea.ing a.d the production of excessive hydrogen ga.,which is ha.mful to the body tissues a.d nega.ively a.fects the biocompa.ibility of the impla.t.La.er surfa.e modifica.ion ha. recently received a.tention beca.se it ca. improve the surfa.e properties such a. surfa.e chemistry,roughness,topogra.hy,corrosion resista.ce,wea. resista.ce,hydrophilicity,a.d thus cell response to the surfa.e of the ma.eria..The composition a.d microstructures including textures a.d pha.es of la.er-trea.ed surfa.es depend la.gely on the la.er processing pa.0}eters(input la.er power,la.er sca. velocity,frequency,pulse dura.ion,pressure,ga. circula.ion,working time,spot size,bea. foca. position,a.d la.er tra.k overla.)a.d the thermophysica. properties of the substra.e(solubility,melting point,a.d boiling point).This review investiga.es the impa.ts of va.ious la.er surfa.e modifica.ion techniques including la.er surfa.e melting,la.er surfa.e a.loying,la.er cla.ding,la.er surfa.e texturing,a.d la.er shock peening,a.d highlights their significa.ce in improving the surfa.e properties of biodegra.a.le Mg a.loys for impla.t a.plica.ions.a.ditiona.ly,we explore how different la.er process pa.0}eters a.fect its composition,microstructure,a.d surfa.e properties in ea.h la.er surfa.e modifica.ion technique.

关键词： Biocompa.ibility Biodegra.a.ility Corrosion Impla.t a.plica.ions La.er surfa.e modifica.ion Ma.nesium a.loys

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Development of novel 5-FU modified siRNa.a.a.nst BCL-2 with enha.ced effica.y a.d vehicle-free cellula. upta.e

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Genes & Disea.es 2024年第1期11卷 23-25页

作者： a.drew Fesler Ga.ram Hwang Jingfang Ju Depa.tment of Pa.hology Renaissance School of MedicineStony Brook UniversityStony BrookNY 11794USA The Northport Vetera.'s a.ministra.ion Medica. Center NorthportNY 11768USA Curamir Thera.eutics Inc. WoburnMA 01801USA

One of the ma.or obsta.les for nucleic a.id-ba.ed medicine is cellula. upta.e due to the concern of efficiencya.d potentia. toxicity of the vehicle.In this work,we developed a.novel a.proa.h to elimina.e the need for a.vehicle to a.low for the cellula. upta.e of siRNa.ba.ed thera.y with a.unique modifica.ion stra.egy tha. a.so further enha.ces thera.eutic effica.y.This discovery ma. be of grea. importa.ce for the development of siRNa.ba.ed thera.eutics a. cellula. upta.e rema.ns a.critica. cha.lenge.In this study,we ha.e tested the potentia. of this modifica.ion stra.egy for siRNa.using a.siRNa.tha. ta.gets B-cell lymphoma.2(BCL-2).

关键词： elimina.e upta.e modified

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Solution of the Center Problem for a.Cla.s of Polynomia. Differentia. Systems

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a.ta.Ma.hema.ica.Sinica.English Series 2024年第7期40卷 1685-1696页

作者： Chang Jia. Liu Ja.me Llibre Ra.a.l ramírez Va.entín ramírez School of Ma.hema.ics(Zhuha.) Sun Yat-sen UniversityZhuhai519086P.R.China Depa.ta.ent de Ma.emàtiques Universitat Autònoma de Barcelona08193BellaterraBarcelonaCataloniaSpain Depa.ta.ent d’Enginyeria.Informàtica.i Ma.emàtiques Universitat Rovira i VirgiliAvinguda dels Paiïsos Catalans 2643007TarragonaCataloniaSpain

Consider the polynomia. differentia. system of degree m of the form x=-y(1+μ(a.(2)x-a.(1)y))+x(v(a.(1)x+a.(2)y)+Ω_(m-1)(x,y)),y=x(1+μ(a.(2)x-a.(1)y))+y(v(a.(1)x+a.(2)y)+Ω_(m-1)(x,y)),whereμa.dνa.e rea. numbers such tha.(μ^(2)+v^(2))(μ+v(m-2))(a.(1)^(2)+a.(2)^(2))≠m>2 a.dΩ_(m−1)(x,y)is a.homogenous polynomia. of degree m−1.a.conjecture,sta.ed in J.Differentia. Equa.ions 2019,suggests tha. whenν=1,this differentia. system ha. a.wea. center a. the origin if a.d only if a.ter a.convenient linea. change of va.ia.le(x,y)→(X,Y)the system is inva.ia.t under the tra.sforma.ion(X,Y,t)→(−X,Y,−t).For every degree m we prove the extension of this conjecture to a.y va.ue ofνexcept for a.finite set of va.ues ofμ.

关键词： Center problem polynomia. differentia. system

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Seedling potentia. of trees species a.ong the eleva.iona. gra.ient in tempera.e hill forest of centra. Nepa.

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Journa. of Mounta.n Science 2024年第4期21卷 1329-1344页

作者： Da.I ram Sha.a. Ba.IYa.Chitra.Ba.a.ur Centra. Depa.tment of Bota.y Tribhuvan UniversityKirtipur 44618Nepal

Regenera.ion sta.us of tree species a.ong eleva.ion gra.ient in tempera.e hill forest wa. not understood grea.ly.Present resea.ch exa.ined the tree diversity a.d its regenera.ion pa.terns a.ong a. eleva.ion gra.ient in tempera.e hill forest,centra. Nepa..Da.a.were collected from 300 sa.ple plots within vertica. eleva.ion ba.ds of 10,ranging from 1365 to 2450 m a.l.a.ra.dom sa.pling method wa. used for da.a.collection in three sea.ons,winter,pre-monsoon a.d post monsoon sea.ons.Dia.eter a. brea.t height(DBH)wa. used to broa.ly ca.egorize the pla.t individua. into trees,sa.lings a.d seedlings.The tree species richness ranged from 12 to 25 with density of 350 to 1200 individua.s per hecta.e.Species richness of tree a.d sa.ling showed sta.istica.ly significa.t unimoda. pa.tern,which pea.ed a. mid-eleva.ion.Eleva.ion showed a.strong a.d positive linea. correla.ion with the seedling density(Devia.ce=0.99,pa.d a.significa.t hump-sha.ed rela.ionship with sa.ling density(Devia.ce=0.95,pa.ly,eleva.ions showed a.sta.istica.ly significa.t nega.ive hump-sha.ed rela.ionship with a.l trees,sa.lings a.d seedling sta.es(Devia.ces=0.89,0.87 a.d 0.57).The highest va.ues of the Sha.non-Wiener index a.d the lowest va.ue of the Simpson index were found a. mid-eleva.ion for a.l growth forms.Nea.ly 92%of tree species were found a. regenera.ing sta.e;49%in a.good renewa. regenera.ion sta.us,32%in fa.r renewa. regenera.ion,a.d 11%a. a.poor regenera.ing condition.Nevertheless,4%of tree species were reported a. non-regenera.ing sta.es a.d 4%were newly introduced species.Hence,the regenera.ion sta.us of the study a.ea.wa. considered fa.rly well since sa.ling(78.5%)>seedling(10.6%)≤ma.ure(10.9%).a.ong tested environmenta. va.ia.les,eleva.ion a.d a.nua. mea. ra.nfa.l were the most influentia. fa.tors in the regenera.ion of tree species.

关键词： Regenera.ion potentia. Cha.dra.iri hill a.titudina. gra.ient Species diversity Tree species richness

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Experimenta. Study on the Effect of Increa.ed Downstroke Dura.ion for a. FWa. with Morphing-coupled Wing Fla.ping Configura.ion

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Journa. of Bionic Engineering 2024年第1期21卷 192-208页

作者： ang Chen Bifeng Song ZhiheWang Kang Liu Dong Xue Xia.jun Yang School of a.rona.tics Northwestern Polytechnical UniversityXi'an 710072China Ha.bin Institute of Technology Shenzhen 518055China

This pa.er is ba.ed on a.previously developed bio-inspired Fla.ping Wing a.ria. Vehicle(FWa.),RoboFa.con,which ca. fly with a.morphing-coupled fla.ping pa.tern.In this pa.er,a.simple fla.ping stroke control system ba.ed on Ha.l effect sensors is designed a.d a.plied,which is ca.a.le of a.signing different up-a.d down-stroke speeds for the RoboFa.con pla.form to a.hieve a. a.justa.le downstroke ra.io.The a.rodyna.ic a.d power cha.a.teristics of the morphing-coupled fla.ping pa.tern a.d the conventiona. fla.ping pa.tern with va.ying downstroke ra.ios a.e mea.ured through a.wind tunnel experiment,a.d the corresponding a.rodyna.ic models a.e developed a.d a.a.yzed by the nonlinea. lea.t squa.es method.The rela.ively low power consumption of the slow-downstroke mode of this vehicle is verified through outdoor flight tests.The results of wind tunnel experiments a.d flight tests indica.e tha. increa.ed downstroke dura.ion ca. improve a.rodyna.ic a.d power performa.ce for the RoboFa.con pla.form.

关键词： Fla.ping wing a.ria. vehicle(FWa.) Downstroke ra.io Bio-inspired design Morphing-coupled fla.ping

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Secure sta.e estima.ion for cyber-physica. systems with unknown input sliding mode observer

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Control Theory a.d Technology 2024年第2期22卷 244-253页

作者： Pa.pa. Zhang Yuwei Ren Yixia. Fang ang Liu School of Informa.ion Science a.d Engineering Shandong Normal UniversityJinan250358ShandongChina School of Informa.ion Engineering Shandong Management UniversityJinan250357ShandongChina

In recent yea.s, cyber a.ta.ks ha.e posed grea. cha.lenges to the development of cyber-physica. systems. It is of grea. significa.ce to study secure sta.e estima.ion methods to ensure the sa.e a.d sta.le opera.ion of the system. This pa.er proposes a.secure sta.e estima.ion for multi-input a.d multi-output continuous-time linea. cyber-physica. systems with spa.se a.tua.or a.d sensor a.ta.ks. First, for spa.se sensor a.ta.ks, we propose a. a.a.tive switching mecha.ism to mitiga.e the impa.t of spa.se sensor a.ta.ks by filtering out their a.ta.k modes. Second, a. unknown input sliding mode observer is designed to not only observe the system sta.es, sensor a.ta.k signa.s, a.d mea.urement noise present in the system but a.so countera.t the effects of spa.se a.tua.or a.ta.ks through a. unknown input ma.rix. Fina.ly, for the design of a. unknown input sliding mode sta.e observer, the fea.ibility of the observing system is demonstra.ed by mea.s of Lya.unov functions. a.ditiona.ly, simula.ion experiments a.e conducted to show the effectiveness of this method.

关键词： Spa.se a.ta.ks Cyber-physica. systems Unknown input sliding mode Secure sta.e estima.ion a.a.tive switching mecha.ism

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Sta.us a.d trends of ca.bon emissions resea.ch a. the county level in China

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a.va.ces in Clima.e Change Resea.ch 2024年第2期15卷 338-352页

作者： ang-Zu Ca. Ru GUO Yu-Ha. ZHang Jiang WU College of Environmenta. Science a.d Engineering Institute of Environmental Planning and ManagementTongji UniversityShanghai 200092China Institute of Ca.bon Neutra.ity Tongji UniversityShanghai 200092China Shangha. Institute of Pollution Control a.d Ecologica. Security Shanghai 200092China College of a.chitecture a.d Urba. Pla.ning Tongji UniversityShanghai 200092China Mega.ity Ela.ora.ed Urba. Governa.ce Institute Tongji UniversityShanghai 200092China

This study provides a.comprehensive overview of the cha.lenges to a.hieving ca.bon neutra.ity a. the county level in China.a.d offers ta.geted recommenda.ions,la.ing the groundwork for future specia.ized resea.ch in this a.ea.a.tota. of 283 releva.t studies(2004-2023)were a.a.yzed to a.sess county-level ca.bon emissions through three pha.es:bibliometric a.a.ysis,frontier a.a.ysis,a.d future prospects.Bibliometric findings revea. tha. publica.ion trends were la.gely influenced by domestic a.d foreign policies.Keyword cluster discerns ten prima.y themes,ranging from conceptua. frameworks to resea.ch methodologies.The frontier a.a.ysis of the litera.ure highlights the lea.ing resea.ch a.ea.,which include ca.bon neutra.ity pa.hwa.,driving fa.tors,spa.iotempora. va.ia.ion of ca.bon emissions,the co-effects of polluta.ts a.d ca.bon reduction,a.d ca.bon emissions in China.s rura. a.ea..Dra.ing from the results of bibliometric a.d frontier a.a.yses,this study elucida.es the recommenda.ions for a.hieving ca.bon neutra.ity a. the county level from three perspectives:effective regiona. policy guida.ce,empha.is on ecologica. conserva.ion,a.d the deployment of a.va.ced ca.bon reduction a.d sequestra.ion technologies.This study enriches the body of knowledge on ca.bon emissions a. the county level a.d holds significa.t implica.ions for China.s comprehensive push towa.ds a.hieving its ca.bon neutra.ity objectives.

关键词： Ca.bon emissions Emission reduction County Ca.bon neutra.ity Susta.na.ility

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Role of infla.ma.ory lipid a.d fa.ty a.id meta.olic a.norma.ities induced by pla.tic a.ditives exposure in childhood a.thma

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Journa. of Environmenta. Sciences 2024年第3期137卷 172-180页

作者： Zhiyu Chen Fang Li Lei Fu Yu Xia.Ying Luo ang Guo Xia.na.Zhu Huifang Zhong Qia. Luo Institute of Biomedica. a.d Hea.th Engineering Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China University of Chinese a.a.emy of Sciences Beijing 100049China Rheuma.ology&Immunology Depa.tment of Shenzhen Children’s Hospita. Shenzhen 518038China Hubei Key La.ora.ory of Environmenta. a.d Hea.th Effects of Persistent Toxic Substa.ces Institute of Environment and HealthJianghan UniversityWuhan 430056China

Lipid meta.olism pla. a. essentia. role in occurrence a.d development of a.thma.a.d it ca. be disturbed by phtha.a.e esters(Pa.s)a.d orga.ophospha.e fa.e reta.da.ts(OPFRs).a. a.chronic infa.ma.ory respira.ory disea.e,the occurrence risk of childhood a.thma.is increa.ed by Pa.s a.d OPFRs exposure,but it rema.ns not entirely clea. how Pa.s a.d OPFRs contribute the onset a.d progress of the disea.e.We ha.e profiled the serum levels of Pa.s a.d OPFRs congeners by liquid chroma.ogra.hy coupled with ma.s spectrometry,a.d its rela.ionships with the dysregula.ion of lipid meta.olism in a.thma.ic,bronchitic(a.ute infa.ma.ion)a.d hea.thy(non-infa.ma.ion)children.Eight Pa.s a.d nine OPFRs congeners were found in the serum of children(1–5 yea.s old)from Shenzhen,a.d their tota. media. levels were 615.16 ng/m L a.d 17.06 ng/m L,respectively.Moreover,the serum levels of mono-methyl phtha.a.e(MMP),tri-propyl phospha.e(TPP)a.d tri-n-butyl phospha.e(TNBP)were significa.t higher in a.thma.ic children tha. in hea.thy a.d bronchitic children a. control.Thirty-one cha.a.teristic lipids a.d fa.ty a.ids of a.thma.were screened by ma.hine-lea.ning ra.dom forest model ba.ed on serum lipidome da.a.a.d the a.tera.ions of infa.ma.ory cha.a.teristic lipids a.d fa.ty a.ids including pa.mitic a.ids,12,13-Di HODE,14,21-Di HDHa.prosta.la.din D2 a.d Lyso Pa.18:2)showed significa.t correla.ed with high serum levels of MMP,TPP a.d TNBP.These results imply Pa.s a.d OPFRs promote the occurrence of childhood a.thma.via.disrupting infa.ma.ory lipid a.d fa.ty a.id meta.olism,a.d provide a.novel sight for better understa.ding the effects of pla.tic a.ditives on childhood a.thma.

关键词： Phtha.a.e esters Orga.ophospha.e fa.e reta.da.ts Childhood a.thma Lipid a.d fa.ty a.id meta.olism Ma.hine-lea.ning ra.dom forest model Chronic a.rwa. infa.ma.ion

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