检索结果-南通市图书馆

Prepare a Presentation Like Stevee Jobs Fivesteps for effective rehearsals

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

空中英语教室（高级版．彭蒙惠英语） 2024年第10期 12-13,40,41页

作者： carmine Gallo 不详

When it comes to delivering extraordinary presentations,few could compete with Steve Jobs.“Steve was a natural,”according to Bill Gates on a recent episode of the podcast Armchair Expert With dax *** I wrote one of the most popular books on Steve Jobs's presentation style,my ears perked up when Gates called Jobs a“natural.”I know that Jobs improved over time because he practiced over and over.

关键词： Presentation hear steps

Non-invasive prenatal testing can detect silent cancers in expecting mothers

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Genes & diseases 2024年第2期11卷 585-588页

作者： Alessandro Ottaiano Monica Ianniello Nadia Petrillo Mariachiara Santorsola Luigia de Falco Salvatore Giovanni Castaldi Maria Antonietta Castaldi Valentina Giudice carmine Selleri Giovanni Savarese Unit of Innovative Therapies for Abdominal Metastases Istituto Nazionale Tumori di NapoliIRCCS “G.Pascale”Via Mariano SemmolaNapoli 80131Italy AMES Centro Polidiagnostico Strumentale SRLVia Padre Carmine Fico 24Casalnuovo Di Napoli 80013Italy Specialization School of Clinical Pathology Università degli Studi di SalernoVia Giovanni Paolo II 132Fisciano 84084Italy Unit of High-Risk Pregnancy and Prenatal diagnosis University Hospital “San Giovanni di Dio e Ruggi d'Aragona”Via San LeonardoSalerno 84125Italy Hematology and Transplant Center University Hospital “San Giovanni di Dio e Ruggi d'Aragona”Via San LeonardoSalerno 84125Italy department of Medicine Surgery and Dentistry“Scuola Medica Salernitana”Via Salvador Allende 43Baronissi 84081Italy

Pregnancy is a unique physiological state in which several changes *** of the most important aspects is the maternal immune system,which sets to tolerate the presence of thedeveloping fetus(a semi-allogeneic organism),while at the same time providing protection against pathogens.1 Pregnancy has long been known to affect the risk of certain cancers including breast cancer in the short term,gestational trophoblastic disease(GTd),cervical cancer,and melanoma.2,3 The reasons for the increased risk of these cancers during pregnancy are not fully understood,but several hypotheses have been proposed as the hormonal and immune system changes.

关键词： mother cancers fetus

Gate-controlled supercurrent effect in dry-etched dayem bridges of non-centrosymmetric niobium rhenium

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2024年第7期17卷 6575-6581页

作者： Jennifer Koch Carla Cirillo Sebastiano Battisti Leon Ruf Zahra Makhdoumi Kakhaki Alessandro Paghi Armen Gulian Serafim Teknowijoyo Giorgio de Simoni Francesco Giazotto carmine Attanasio Elke Scheer Angelo di Bernardo department of Physics University of KonstanzUniversitätsstraße 1078464 KonstanzGermany CNR-Spin c/o Universitàdegli Studi di Salernovia Giovanni Paolo II 13284084 Fisciano(SA)Italy NEST Istituto Nanoscienze-CNR and Scuola Normale SuperiorePiazza San Silvestro 1256127 PisaItaly dipartimento di Fisica“E.R.Caianiello” Universitàdegli Studi di SalernoVia Giovanni Paolo II 13284084 Fisciano(SA)Italy Advanced Physics Laboratory Institute for Quantum StudiesChapman UniversityBurtonsvilleMD 20866USA

The application of a gate voltage to control the superconducting current flowing through a nanoscale superconducting constriction,named as gate-controlled supercurrent(GCS),has raised great interest for fundamental and technological *** gain a deeper understanding of this effect and develop superconducting technologies based on it,the material and physical parameters crucial for the GCS effect must be ***-down fabrication protocols should also be optimized to increase device scalability,although studies suggest that top-down fabricated devices are more resilient to show a ***,we investigate gated superconducting nanobridges made with a top-down fabrication process from thin films of the noncentrosymmetric superconductor niobium rhenium with varying ratios of the constituents(NbRe).Unlike other devices previously reported and made with a top-down approach,our NbRe devices systematically exhibit a GCS effect when they were fabricated from NbRe thin films with small grain size and etched in specific *** observations pave the way for the realization of top-down-made GCS devices with high *** results also imply that physical parameters like structural disorder and surface physical properties of the nanobridges,which can be in turn modified by the fabrication process,are crucial for a GCS observation,providing therefore also important insights into the physics underlying the GCS effect.

关键词： superconductivity non-centrosymmetric superconductors superconducting devices gated devices gate-controlled supercurrent top-down fabrication

Functional group resolved NMR relaxation of 3-carbon adsorbates in mesoporous alumina

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Magnetic Resonance Letters 2023年第3期3卷 248-255,I0004页

作者： Neil Robinson carmine.d’agostino Michael LJohns department of Chemical Engineering The University of Western Australia35 Stirling HighwayPerthWA 6009Australia department of Chemical Engineering The University of ManchesterOxford RoadManchesterM139PLUK dipartimento di Ingegneria Civile ChimicaAmbientale e Dei Materiali(DICAM)Alma Mater Studiorum e Universita di BolognaVia Terracini28Bologna40131Italy

NMR relaxation analysis provides a unique and non-invasive probe of fluid dynamics within porous materials,and may be applied to the interpretation of a wide variety of material and interfacial ***,we report two-dimensional^(1)H T_(1)-T_(2)relaxation correlation measurements of a range of three-carbon adsorbates(1-propanol,2-propanol and propanoic acid)imbibed within the mesoporous metal oxide *** data,acquired across field strengths of 2 MHz,12.7 MHz and 43 MHz,clearly reveal two populations in each measurement,identified as the alkyl and hydroxyl moieties of each *** results expand the range of materials in which such functional group resolved relaxation is known to occur,and demonstrate the clear persistence of such phenomena using a range of typical benchtop NMR systems employed to study fluid-saturated porous media.

关键词： NMR relaxation Adsorption Porous media Low-field NMR

Snapshot imaging of ultrashort electron bunches

在线全文

学校读者我要写书评

暂无评论

Light(Science & Applications) 2024年第7期13卷 1226-1228页

作者： Andreas döpp Ludwig-Maximilian-Universität München Am Coulombwall 185748GarchingGermany Max Planck Institut für Quantenoptik Hans-Kopfermann-Strasse 1Garching85748Germany

New measurements combine spatial and temporal information from optical transition radiation to estimate the three-dimensional structure of electron bunches from a laser wakefield accelerator.

关键词： ultrashort Snapshot electron

Influence of variable viscosity and double diffusion on the convective stability of a nanofluid flow in an inclined porous channel

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Applied Mathematics and Mechanics(English Edition) 2024年第3期45卷 563-580页

作者： N.HUMNEKAR d.SRINIVASACHARYA department of Mathematics National Institute of TechnologyWarangal 506004TelanganaIndia

The influence of variable viscosity and double diffusion on the convective stability of a nanofluid flow in an inclined porous channel is *** darcyBrinkman model is used to characterize the fluid flow dynamics in porous *** analytical solutions are obtained for the unidirectional and completely developed *** on a normal mode analysis,the generalized eigenvalue problem under a perturbed state is *** eigenvalue problem is then solved by the spectral ***,the critical Rayleigh number with the corresponding wavenumber is evaluated at the assigned values of the other flow-governing *** results show that increasing the darcy number,the Lewis number,the dufour parameter,or the Soret parameter increases the stability of the system,whereas increasing the inclination angle of the channel destabilizes the ***,the flow is the most unstable when the channel is vertically oriented.

关键词： nanofluid inclined channel variable viscosity linear stability double dif-fusion porous medium

等级孔分子筛的可控合成、扩散研究及催化应用

在线全文

学校读者我要写书评

暂无评论

高等学校化学学报 2021年第1期42卷 74-100页

作者：邹润董霄矫义来 d'agostino carmine 闫文付范晓雷 department of Chemical Engineering and Analytical Science School of Engineeringthe University of ManchesterManchester M139PLUnited Kingdom 中国科学院沈阳金属研究所沈阳材料科学国家研究中心沈阳110016 吉林大学化学学院无机合成与制备化学国家重点实验室长春130012

等级孔分子筛是一类具有两种或多种以特定形式排布的孔结构的分子筛材料.多层等级的孔结构使得分子筛孔道内的分子扩散得到显著改善,进而提升了其在吸附和非均相催化等领域的应用性能.等级孔分子筛的制备策略通常有两种,即“自上而下”... 详细信息

等级孔分子筛是一类具有两种或多种以特定形式排布的孔结构的分子筛材料.多层等级的孔结构使得分子筛孔道内的分子扩散得到显著改善,进而提升了其在吸附和非均相催化等领域的应用性能.等级孔分子筛的制备策略通常有两种,即“自上而下”后处理法(如对母样分子筛进行脱铝、脱硅产生介孔)和“自下而上”合成法(如软模板、硬模板法).本文主要对近20年来等级孔分子筛的合成方法进行了梳理,并着重介绍了具有较高应用潜力的“自上而下”制备法.鉴于合成等级孔分子筛的主要目的是提高分子的晶内扩散,对近年来客体分子在等级孔分子筛内扩散的实验研究也进行了简要综述.此外,本文还综合评述了等级孔分子筛与传统分子筛在催化应用中的对比,以展示前者在提升催化性能方面(如活性、选择性等)的独特优势.

关键词：等级孔分子筛后处理扩散脉冲梯度场核磁共振催化

Improved Leap-frog Method for Time-domain Fault Location

在线全文

学校读者我要写书评

暂无评论

Journal of Modern Power Systems and Clean Energy 2024年第2期12卷 670-674页

作者： Izudin džafić Rabih A.Jabr Faculty of Electrical Engineering University of SarajevoSarajevo 71000Bosnia and Herzegovina department of Electrical and Computer Engineering American University of BeirutBeirut 11072020Lebanon IEEE

The partial differential equation(PdE)solution of the telegrapher is a promising fault location method among time-domain and model-based *** research works have shown that the leap-frog process is superior to other explicit methods for the PdE ***,its implementation is challenged by determining the initial conditions in time and the boundary conditions in *** letter proposes two implicit solution methods for determining the initial conditions and an analytical way to obtain the boundary conditions founded on the signal *** results show that the proposal gives fault location accuracy superior to the existing leap-frog scheme,particularly in the presence of harmonics.

关键词： Fault location leap-frog partial differential equation time-domain analysis transmission line

The Effect of External Magnetic Field on Electron Scale Kelvin–Helmholtz Instability

在线全文

学校读者我要写书评

暂无评论

Research in Astronomy and Astrophysics 2024年第9期24卷 236-247页

作者： d.Tsiklauri Joule Physics Laboratory School of ScienceEngineering and EnvironmentUniversity of SalfordManchesterM54WTUK

We use particle-in-cell,fully electromagnetic,plasma kinetic simulation to study the effect of external magnetic field on electron scale Kelvin–Helmholtz instability(ESKHI).The results are applicable to collisionless plasmas when,e.g.,solar wind interacts with planetary magnetospheres or a magnetic field is generated in AGN *** find that as in the case of magnetohydrodynamic(MHd)KHI,in the kinetic regime,the presence of an external magnetic field reduces the growth rate of the *** the MHd case,there is a known threshold magnetic field for KHI stabilization,while for ESKHI this is to be analytically *** a kinetic analytical expression,we use several numerical simulation runs to establish an empirical dependence of ESKHI growth rate,Γ(B_(0))ω_(pe),on the strength of the applied external magnetic *** find the best fit is hyperbolic,Γ(B_(0))ω_(pe)=Γ_(0)ω_(pe)/(A+BB_(0)),where Γ_(0) is the ESKHI growth rate without an external magnetic field and B_(0)=B_(0)/B_(MHd)is the ratio of external and two-fluid MHd stability threshold magnetic field,derived *** analytical theory to back up this growth rate dependence on the external magnetic field is *** results suggest that in astrophysical settings where a strong magnetic field pre-exists,the generation of an additional magnetic field by the ESKHI is suppressed,which implies that nature provides a“safety valve”—natural protection not to“over-generate”magnetic field by the ESKHI ***,we find that our two-fluid MHd threshold magnetic field is the same(up to a factor √γ_(0))as the dC saturation magnetic field,previously predicted by fully kinetic theory.

关键词： instabilities magnetic fields plasmas Sun:heliosphere ISM:magnetic fields