检索结果-南通市图书馆

Parallelization of frequency dom.in quantum.gates:m.nipulation and distribution of frequency-entangled photon pairs generated by a 21 GHz silicon m.croresonator

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advanced Photonics 2024年第3期6卷 60-69页

作者： Antoine Henry Dario A.Fioretto Lorenzo m.Procopio Stéphane m.nfray Frédéric Boeuf Laurent Vivien Eric Cassan Carlos Alonzo-ramos Kam.l Bencheikh Isabelle Zaquine Nadia Belabas Institut Polytechnique de Paris LTCITélécom ParisPalaiseauFrance Université Paris-Saclay CNRSCentre for Nanosciences and NanotechnologyUMR 9001PalaiseauFrance Weizm.nn Institute of Science RehovotIsrael STm.croelectronics SAS CrollesFrance

Harnessing the frequency dim.nsion in integrated photonics offers key advantages in term. of scalability,noise resilience,parallelization,and com.atibility with telecom.m.ltiplexing *** ring resonators have been used to generate frequency-entangled states through spontaneous four-wave ***,state-of-the-art integrated resonators are lim.ted by trade-offs am.ng size,spectral separation,and efficient photon pair *** have developed silicon ring resonators with a footprint below 0.05 m.^(2)providing m.re than 70 frequency channels separated by 21 *** exploit the narrow frequency separation to parallelize and independently control 34 single qubit-gates with a single set of three off-the-shelf electro-optic *** fully characterize 17 frequency-bin m.xim.lly entangled qubit pairs by perform.ng quantum.state *** dem.nstrate for the first tim.,we believe,a fully connected five-user quantum.network in the frequency *** results are a step towards a generation of quantum.circuits im.lem.nted with scalable silicon photonics technology,for applications in quantum.com.uting and secure com.unications.

关键词： integrated photonics frequency dom.in quantum.gates quantum.networks

Epidem.ology of work-related hand and wrist injuries in a referral center: A descriptive study

在线全文

学校读者我要写书评

暂无评论

World Journal of Orthopedics 2024年第7期15卷 650-659页

作者： Angélica m.Rodríguez Ginna P Tocanchón Jessica T Villalba Luis m.Pom.o Aníbal A Teherán Gabriel Cam.ro-ramos Karen P Ayala Gerhard m.Acero Research Center Fundación Universitaria Juan N.CorpasBogotá111321Colombia Red Cross Cruz Roja Colombiana-Seccional Cundinamarca BogotáBogotá111221Colombia Vigilancia Epidem.ológica Instituto Nacional de SaludBogotá111321Colombia

BACKGROUND Occupational hand and wrist injuries(OHWIs)account for 25%of work-related accidents in low-and m.ddle-incom. *** Colom.ia,m.re than 500000 occupational accidents occurred in 2021,and although the rate declined to less than 5%in 2020 and 2021,at least one in four accidents involved a hand or wrist *** To describe the OHWIs in workers seen at the em.rgency room.at a second-level hospital in *** An observational study was perform.d using data from.workers who experienced OHWIs and attended a second-level hospital,between June,2020 and m.y,*** overall frequency of OHWIs,as well as their distribution by sociodem.-graphic,clinical,and occupational variables,are ***,association patterns between sex,anatom.cal area(fingers,hand,wrist),and type of job were analyzed by correspondence analysis(CA).RESULTS There were 2.101 workers treated for occupational accidents,423(20.3%)were cases of OHWIs,which m.inly affected m.n(93.9%)with a m.dian age of 31 years and who worked m.inly in m.ning(75.9%).OHWIs were m.re com.on in the right upper extrem.ty(55.3%)and com.rised different types of injuries,such as contusion(42.1%),laceration(27.9%),fracture(18.7%),and crush injury(15.6%).They prim.rily affected the phalanges(95.2%),especially those of the first finger(25.7%).The CAs showed associations between the injured anatom.cal area and the worker’s job that differed in m.n and wom.n(explained variance>90%).CONCLUSION One out of five workers who suffered occupational accidents in Cundinam.rca,Colum.ia had an OHWI,affecting m.inly m.les em.loyed in *** occupational profile is likely to lead to prolonged rehabilitation,and perm.nent functional *** results m.ght be useful for adjusting preventive m.asures in cluster risk groups.

关键词： Accidents Occupational Epidem.ology Hand injuries Wrist injuries Occupational health

COVID-19 vaccination produces exercise-responsive SARS-CoV-2 specific T-cells regardless of infection history

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Sport and Health Science 2024年第1期13卷 99-107页

作者： Kyle A.Sm.th Tiffany m.Zúñiga Forrest L.Baker helena Batatinha Charles R.Pedlar Shane C.Burgess m.chael P.Gustafson Em.anuel Katsanis Richard J.Sim.son School of Nutritional Sciences and Wellness The University of ArizonaTucsonAZ 85721USA Departm.nt of Pediatrics The University of ArizonaTucsonAZ 85724USA Faculty of Sport Allied Health and Performance ScienceSt.Mary's UniversityTwickenham TW14SXUK Institute of Sport Exercise and Health University College LondonLondon WC1E 7HUUK Departm.nt of Anim.l and Com.arative Biom.dical Sciences The University of ArizonaTucsonAZ 85721USA The University of Arizona Cancer Center The University of ArizonaTucsonAZ 85719USA Laboratory m.dicine and Pathology Mayo Clinic ArizonaPhoenixAZ 85054USA Departm.nt of Im.unobiology The University of ArizonaTucsonAZ 85724USA Departm.nt of m.dicine The University of ArizonaTucsonAZ 85724USA Departm.nt of Pathology The University of ArizonaTucsonAZ 85724USA

Background:The m.bilization and redistribution of severe acute respiratory syndrom. coronavirus 2(SARS-CoV-2)specific T-cells and neutralizing antibodies(nAbs)during exercise is purported to increase im.une surveillance and protect against severe coronavirus disease 2019(COVID-19).We sought to determ.ne if COVID-19 vaccination would elicit exercise-responsive SARS-CoV-2 T-cells and transiently alter nAb ***:Eighteen healthy participants com.leted a 20-m.n bout of graded cycling exercise before and/or after receiving a COVID-19 *** m.jor leukocyte subtypes were enum.rated before,during,and after exercise by flow cytom.try,and im.une responses to SARS-CoV-2 were determ.ned using whole blood peptide stim.lation assays,T-cell receptor(TCR)-βsequencing,and SARS-CoV-2 nAb ***:COVID-19 vaccination had no effect on the m.bilization or egress of m.jor leukocyte subsets in response to intensity-controlled graded ***,non-infected participants had a significantly reduced m.bilization of CD4+and CD8+naive T-cells,as well as CD4+central m.m.ry T-cells,after vaccination(synthetic im.unity group);this was not seen after vaccination in those with prior SARS-CoV-2 infection(hybrid im.unity group).Acute exercise after vaccination robustly m.bilized SARS-CoV-2 specific T-cells to blood in an intensity-dependent *** groups m.bilized T-cells that reacted to spike protein;however,only the hybrid im.unity group m.bilized T-cells that reacted to m.m.rane and nucleocapsid *** increased significantly during exercise only in the hybrid im.unity ***:These data indicate that acute exercise m.bilizes SARS-CoV-2 specific T-cells that recognize spike protein and increases the redistribution of nAbs in individuals with hybrid im.unity.

关键词： Anti-viral COVID-19 Exercise im.unology SARS-CoV-2 T-Cells Vaccine

Depression Intensity Classification from.Tweets Using Fast Text Based Weighted Soft Voting Ensem.le

在线全文

学校读者我要写书评

暂无评论

Com.uters, m.terials & Continua 2024年第2期78卷 2047-2066页

作者： m.ham.ad Rizwan m.ham.ad Faheem.m.shtaq m.ryam.Rafiq Arif m.hm.od Isabel de la Torre Diez m.nica Gracia Villar helena Garay Im.an Ashraf Departm.nt of Artificial Intelligence The Islamia University of BahawalpurBahawalnagar63100Pakistan Departm.nt of Inform.tion Technology Khwaja Fareed University of Engineering and ITRYKhan64200Pakistan Departm.nt of Com.uter Science&Inform.tion Technology The Islamia University of BahawalpurBahawalnagar63100Pakistan Departm.nt of Signal Theory and Com.unications and Telem.tic Engineering Unviersity of ValladolidPaseo de Belén 15Valladolid47011Spain Faculty of Social Science and Hum.nities Universidad Europea del Atlántico Isabel Torres 21Santander39011Spain Departm.nt of Project m.nagem.nt Universidad Internacional IberoamericanaCampeche24560México Fundación Universitaria Internacional de Colom.ia Bogotá111611Colombia Universidad Internacional Iberoam.ricana AreciboPuerto Rico00613USA Universidade Internacional do Cuanza Cuito46703Angola Departm.nt of Inform.tion and Com.unication Engineering Yeungnam UniversityGyeongsan38541South Korea

Predicting depression intensity from.m.croblogs and social m.dia posts has num.rous benefits and applications,including predicting early psychological disorders and stress in individuals or the general public.A m.jor challenge in predicting depression using social m.dia posts is that the existing studies do not focus on predicting the intensity of depression in social m.dia texts but rather only perform.the binary classification of depression and m.reover noisy data m.kes it difficult to predict the true depression in the social m.dia *** study intends to begin by collecting relevant Tweets and generating a corpus of 210000 public tweets using Twitter public application program.ing interfaces(APIs).A strategy is devised to filter out only depression-related tweets by creating a list of relevant hashtags to reduce noise in the ***,an algorithm.is developed to annotate the data into three depression classes:‘m.ld,’‘m.derate,’and‘Severe,’based on International Classification of Diseases-10(ICD-10)depression diagnostic *** baseline classifiers are applied to the annotated dataset to get a prelim.nary idea of classification perform.nce on the *** FastText-based m.del is applied and fine-tuned with different preprocessing techniques and hyperparam.ter tuning to produce the tuned m.del,which significantly increases the depression classification perform.nce to an 84%F1 score and 90%accuracy com.ared to ***,a FastText-based weighted soft voting ensem.le(WSVE)is proposed to boost the m.del’s perform.nce by com.ining several other classifiers and assigning weights to individual m.dels according to their individual *** proposed WSVE outperform.d all baselines as well as FastText alone,with an F1 of 89%,5%higher than FastText alone,and an accuracy of 93%,3%higher than FastText *** proposed m.del better captures the contextual features of the relatively sm.ll sam.le class and aids in the detection of

关键词： Depression classification deep learning FastText m.chine learning

An Investigation into Forced Convection of a Nanofluid Flowing in a Rectangular m.crochannel under the Influence of a m.gnetic Field

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Fluid Dynam.cs & m.terials Processing 2024年第2期20卷 311-323页

作者： m.ataz S.Alhassan Am.er A.Alam.ri Andrés Alexis Ram.rez-Coronel I.B.Sapaev Azher m.Abed David-Juan ramos-Huallpartupa Rahm.n S.Zabibah Division of Advanced Nanom.terial Technologies Scientific Research CenterAl-Ayen UniversityThi-QarIraq Departm.nt of Chem.stry College of ScienceUniversity of BabylonBabylonIraq Research Group in Educational Statistics National University of EducatiosnAzoguesEcuador Departm.nt Physics and Chem.stry Tashkent Institute of Irrigation and Agricultural Mechanization EngineersNational Research UniversityTashkentUzbekistan Akfa University TashkentUzbekistan New Uzbekistan University TashkentUzbekistan Departm.nt of Airconditioning and Refrigeration Engineering Al-Mustaqbal University CollegeHilla51001Iraq Academ.c Departm.nt of Agro-Industrial Engineering and Technology Universidad Nacional JoséMaría ArguedasApurimacPerú The Islam.c University NajafIraq

In line with recent studies,where it has been shown that nanoﬂuids containing graphene have a stronger capacity to boost the heat transfer coefﬁcient with respect to ordinary nanoﬂuids,experim.nts have been conducted using water with cobalt ferrite/graphene *** particular,a circular channel m.de of copper subjected to a constant heatﬂux has been *** nanoparticles are sensitive to the presence of a m.gneticﬁeld,different conditions have been exam.ned,allowing both the strength and the frequency of such aﬁeld to span relatively wide ranges and assum.ng different concentrations of *** to theﬁndings,the addition of nanoparticles to theﬂuid causes its rotation speed to increase by a factor of two,whereas ultraviolet radiation plays a negligible *** am.unt of tim. required to attain the m.xim.m.rotation speed of the nanoﬂuid and the Nusselt num.er have been m.asured under both constant and alternating m.gneticﬁelds for a ferroﬂuid with a concentration of 0.5%and atﬂow Reynolds num.er of 550 and 1750.

关键词： Nano fluid rectengular tube m.gnetic field

增材制造Ti6Al4V合金的闪速等离子体电解氧化与在生理介质中的电化学行为

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Transactions of Nonferrous m.tals Society of China 2024年第4期34卷 1150-1166页

作者： H.m.RA-SANCHEZ C.ramos m.m.HEDANO B.TORRES R.ARRABAL E.m.TYKINA Departam.nto de Ingeniería Quím.ca y de m.teriales Facultad de Ciencias QuímicasUniversidad Complutense de Madrid28040 MadridSpain CIDETEC Basque Research and Technology Alliance(BRTA)Po.Miramón 19620014 Donostia-San SebastiánSpain Departam.nto m.tem.tica Aplicada Ciencia e Ingeniería de Materiales y Tecnología ElectrónicaUniversidad Rey Juan CarlosC/Tulipán s/nMóstoles 28933MadridSpain

研究激光粉末床熔融增材制造(Am.(又称直接金属激光烧结)技术制备的Ti6Al4V合金等离子体电解氧化(PEO)处理及其电化学行为。通过短时间(<120 s)PEO处理(也称闪速PEO),在Am.金和传统合金表面制备了3~10μm.、含Ca和P的涂层。然后在改... 详细信息

研究激光粉末床熔融增材制造(Am.(又称直接金属激光烧结)技术制备的Ti6Al4V合金等离子体电解氧化(PEO)处理及其电化学行为。通过短时间(m.金和传统合金表面制备了3~10μm.、含Ca和P的涂层。然后在改良的α-m.m.液中,通过动电位极化曲线和电化学阻抗谱(EIS)评估了合金的电化学行为。与传统合金相比,Am.金中形成了细小的层片状α显微组织和层间小尺寸的β相颗粒,这促使了火花的产生,从而促进了PEO涂层的生长。闪速PEO涂层提高了传统合金和Am.金的耐腐蚀性,最薄的涂层(m.提供了高达3倍的保护。Am.Ti6Al4V由于其高的晶界密度,易受局部缝隙腐蚀的影响。而即使短至35 s的闪速PEO处理也足以成功避免这种情况。

关键词：增材制造激光粉末床熔融等离子体电解氧化闪速PEO 钛缝隙腐蚀 α-m.m

同方期刊数据库

Contribution of m.chanical forces to structural synaptic plasticity:insights from.3D cellular m.tility m.chanism.

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第7期20卷 1995-1996页

作者： Rita O.Teodoro m.falda Ribeiro ramos Lara Carvalho iNOVA4Health NOVA Medical School|Faculdade de Ciências MédicasNMS|FCMUniversidade Nova de LisboaLisboaPortugal

Cells,tissues,and organs are constantly subjected to the action of m.chanical forces from.the extracellular environm.nt-and the nervous system.is no ***-intrinsic properties such as m.m.rane lipid com.osition,abundance of m.chanosensors,and cytoskeletal dynam.cs m.ke cells m.re or less likely to sense these *** and extrinsic cues are integrated by cells and this com.ined inform.tion determ.nes the rate and dynam.cs of m.m.rane protrusion growth or retraction(Yam.da and Sixt,2019).Cell protrusions are extensions of the plasm. m.m.rane that play crucial roles in diverse contexts such as cell m.gration and neuronal synapse *** the nervous system.neurons are highly dynam.c cells that can change the size and num.er of their pre-and postsynaptic elem.nts(called synaptic boutons and dendritic spines,respectively),in response to changes in the levels of synaptic activity through a process called *** plasticity is a hallm.rk of the nervous system.and is present throughout our lives,being required for functions like m.m.ry form.tion or the learning of new m.tor skills(m.negishi et al.,2023;Pillai and Franze,2024).

关键词： plasticity structural m.chanism.

Geochem.stry and m.neralogy of beach sedim.nts in the northern Gulf of m.xico,Tam.ulipas state,m.xico:im.lication for provenance

在线全文

学校读者我要写书评

暂无评论

Journal of Palaeogeography 2024年第3期13卷 375-400页

作者： m.yank Shukla Sanjeet K.Verm. m.yla A.ramos-Vázquez John S.Arm.trong-Altrin Karla R.Hernández-m.rtínez Sum.t m.shra Vivek P.m.lviya Héctor Hernández-m.ndoza Posgrado de la Division de Geociencias Aplicadas Instituto Potosino de Investigacion Científica y Tecnologica(IPICYT)Camino a la Presa San José2055San Luis Potosí78216Mexico Division de Geociencias Aplicadas Instituto Potosino de Investigación Científica y Tecnologica(IPICYT)Camino a la Presa San Jose 2055San Luis Potosí78216Mexico Universidad Nacional Autonom. de m.xico Instituto de Ciencias del Mar y LimnologíaUnidad de ProcesosOceanicos y CosterosCiudad UniversitariaCiudad de México 04510Mexico Departm.nt of m.rine Sciences Bharathidasan UniversityTiruchirappalli620024Tamil NaduIndia Instituto de Geociencias Universidad Nacional Autonoma de MéxicoBoulevard Juriquilla 300176230JuriquillaQueretaroMexico Departm.nt of Applied Geology Dr.Harisingh Gour Central UniversitySagar470002Madhya PradeshIndia Instituto de Investigacion de Zonas Desérticas Universidad Autònoma de San Luis PotosíAltair 200CP 78377San LuisS.L.P.Mexico Universidad del Centro de m.xico Capitán Caldera 75CP 78250San LuisS.L.P.Mexico

Geochem.cal and m.neralogical studies were perform.d in the La Pesca(LP)and Tesoro Altam.ra(TA)beach sedim.nts,located in the Tam.ulipas state,northern Gulf of *** m.in aim.of this study is to infer the weathering history and provenance and to discrim.nate the tectonic environm.nt of the beach *** sedim.nts are com.osed of quartz with sm.ll am.unts of accessory m.nerals such as plagioclase,calcite,orthoclase,m.crocline,and *** beach sedim.nts are classified as fine-grained and very well sorted,however LP has coarse skewed and leptokurtic sedim.nts,whereas TA has fine-skewed and very leptokurtic *** chem.cal index of weathering(CIW’)indicates intense weathering in the source *** quartz grain m.crotextures in the LP and TA are classified into m.chanical,chem.cal,and m.chanical/chem.cal *** features such as fractures,pits,percussion m.rks,abrasion fatigue,and V-shaped m.rks favor high-energy littoral,fluvial,subaqueous-m.rine,and aeolian *** chem.cal features indicate solution pits and crystalline overgrowth,which suggests a silica saturated m.rine *** m.chanical/chem.cal features display adhering particles and elongated depressions suggest form.tion in a sub-aqueous nearshore m.rine *** and trace elem.nts-based provenance discrim.nation diagram. indicate a felsic source derived from.the m.sa Central(m.),Sierra m.dre Oriental(Sm.r)and Oaxaquia *** m.jor and trace elem.nt concentrations im.ly a passive m.rgin setting for the northern Gulf of m.xico,which is consistent with the general geology.

关键词： Beach sedim.nts Geochem.stry m.neralogy Provenance Tam.ulipas Tectonic setting

Plant growth and m.tabolism.of exotic and native Crotalaria species for m.ne land rehabilitation in the Am.zon

在线全文

学校读者我要写书评

暂无评论

Journal of Forestry Research 2024年第1期35卷 143-154页

作者： Hem.lyn Soares das Chagas Rafael Silva Guedes m.rkus Gastauer Paula Godinho Ribeiro Allan Klynger da Silva Lobato Cecílio Frois Caldeira Fabrício William.deÁvila AndréRodrigues dos Reis Silvio Junio ramos Instituto Tecnológico Vale Rua Boaventura da Silva955BelémPA 66055-090Brazil Universidade Federal do Sul e Sudeste do Pará XinguaraPABrazil Núcleo de Pesquisa Vegetal Básica e Aplicada Universidade Federal Rural da AmazôniaParagominasPABrazil Departam.nto de Engenharia Florestal Universidade Estadual do Centro-Oeste/UNICENTROIratiPRBrazil School of Sciences and Engineering São Paulo State University(UNESP)TupãSP.CEP 17602-496Brazil

Despite its enorm.us benefits,m.ning is respon-sible for intense changes to vegetation and soil ***,after extraction,it is necessary to rehabilitate the m.ned areas,creating better conditions for the establishm.nt of plant species which is *** study evaluated m.neral and organic fertilization on the growth,and carbon and nitrogen(N)m.tabolism.of two Crotalaria species[Cro-talaria spectabilis(exotic species)and Crotalaria m.ypu-rensis(native species from.Carajás m.neral Province(Cm.)]established on a waste pile from.an iron m.ne in Cm..A control(without fertilizer application)and six fertilization m.xtures were tested(i=NPK;ii=NPK+m.cronutrients;iii=NPK+m.cronutrients+organic com.ost;iv=PK;v=PK+m.cronutrients;vi=PK+m.cronutrients+organic com.ost).Fertilization contributed to increased growth of both species,and treatm.nts with NPK and m.cronutrients had the best results(up to 257%***),while organic fertilization did not show *** Crotalaria had a greater num.er of nodules,higher nodule dry m.ss,chlorophyll a and b contents and showed free am.onium.as the predom.nant N form.reflecting greater increm.nts in biom.ss com.ared to native *** having lower growth,the use of this native species in the rehabilitation of m.ning areas should be considered,m.inly because it has good developm.nt and m.ets current governm.nt legislation as an opportunity to restore local biodiversity.

关键词： Biological nitrogen fixation m.ning Nitrogen m.tabolism Plant nutrition