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Interpolation of Ideal Measures by Abstract K and J Spaces

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Acta Mathematica Sinica,English Series 2007年第8期23卷 1357-1374页

作者： Luz M.FERNNDEZ-CABRERA antón MARTíNEZ Sección Departamental de Matemática Aplicada Escuela de EstadísticaUniversidad Complutense de Madrid28040 MadridSpain Departamento de Matemática Aplicada I E.T.S.Ingenieros IndustrialesUniversidad de Vigo36200

We work with the abstract K and J interpolation method generated by a sequence lattice Г. We investigate the deviation of an interpolated operator from a given operator ideal by establishing formulae for the ideal measure of the interpolated operator in terms of the ideal measures of restrictions of the operator. Formulae are given in terms of the norms of the shift operators on Г.

关键词： real interpolation ideal measures operator ideals shift operators

Stabilisation of estuarine sediments with an alkali-activated cement for deep soil mixing applications

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第4期16卷 1398-1410页

作者： Claver Pinheiro Sara Rios antónio Viana da Fonseca Nuno Cristelo Centre of Physics of Minho and Porto Universities (CF-UM-UP) Azurém CampusUniversity of MinhoGuimarães4800-058Portugal CONSTRUCT-GEO Faculty of EngineeringUniversity of PortoRua Dr.Roberto FriasPortos/n 4200-465Portugal CQ-VR School of Science and TechnologyUniversity of Trás-os-Montes e Alto DouroVila Real5000-801Portugal

In this work,an alternative alkali-activated cement(AAC)made of ladle slag precursor mixed with sodium hydroxide and sodium silicate has been developed to enhance the bearing capacity of estuarine soils in coastal conditions via deep soil mixing(DSM).The AAC was optimized to use a low reactivity precursor(ladle slag)and to deal with a contaminated high-water content natural sediment cured under *** material performance was analysed by comparison to a mixture made with Portland cement and cured in the same *** and unconfined compressive strength tests as well as seismic waves measurements after 3-,7-,14-and 28-d curing were performed to obtain a relationship between elastic stiffness and strength with curing time for both ***,the AAC mix demonstrated superior strength results,exhibiting almost double flexural and compressive strengths after 28 d compared to the Portland cement *** AAC mix also showed a higher rate of stiffness increase than the Portland cement mix,which has a higher initial stiffness at young ages but lower stiffness *** analysis confirmed that the proposed AAC could effectively immobilise any contaminants from soil or *** effect of curing under stress was analysed in triaxial compression tests and found to be insignificant,indicating that laboratory data obtained without stress curing can represent the material's behaviour in a DSM column,which will cure under the weight of the column.

关键词： Alkaline-activation Steel slag Submerged curing Seismic wave measurements Leachate analysis Curing under stress

Acute abdomen in pregnancy due to isolated Fallopian tube torsion: The laparoscopic treatment of a rare case

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World Journal of Clinical Cases 2014年第11期2卷 724-727页

作者： Zacharoula Sidiropoulou antónio Setúbal General Surgery Department Hospital S?o Francisco Xavier-CHLO 1449-005 Lisbon Portugal Gynecology and Obstetrics Department Hospital da Luz 1500-650 Lisbon Portugal

In the last years, operative laparoscopy became a standard approach in gynaecology and general surgery. Even in pregnancy its use is becoming more widely accepted. In fact, it offers advantages similar to those in no pregnant women, associated with good maternal and fetal outcomes. Around 0.2% of pregnant women require abdominal surgery. The most common indications of laparoscopy in pregnancy are cholelithiasis complications, appendicitis, persistent ovarian cyst and adnexal torsion. Authors describe a very rare case of acute abdomen due to isolated Fallopian tube torsion in a 24 th weeks pregnant woman, managed by laparoscopic salpingectomy.

关键词： Fallopian tube torsion Acute abdomen Pregnancy Laparoscopy

Influence of train speed and its mitigation measures in the short-and long-term performance of a ballastless transition zone

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Railway Engineering Science 2023年第4期31卷 309-324页

作者： Ana Ramos Rui Calçada antónio Gomes Correia Department of Civil Engineering Faculty of EngineeringUniversity of PortoCONSTRUCT-LESEPortoPortugal Department of Civil Engineering University of MinhoISISEGuimarãesPortugal

The ballastless track is nowadays the most popular railway system due to the required low number of maintenance opera-tions and costs,despite the high *** gradual change from ballasted to ballastless tracks has been occurring in Asia,but also in Europe,increasing the number of transition *** transition zones are a special area of the railway networks where there is an accelerated process of track degradation,which is a major concern of the railway infrastructure ***,the accurate prediction of the short-and long-term performance of ballastless tracks in transition zones is an important topic in the current paradigm of building/rehabilitating high-speed *** work purposes the development of an advanced 3D model to study the global performance of a ballastless track in an embankment-tunnel transition zone considering the influence of the train speed(220,360,500,and 600 km/h).Moreover,a mitigation measure is also adopted to reduce the stress and displacements levels of the track in the transition.A resilient mat placed in the tunnel and embank-ment aims to soften the *** behaviour of the track with the resilient mat is evaluated considering the influence of the train speed,with special attention regarding the critical *** used methodology is a novel and hybrid approach that allows including short-term and long-term performance,through the development of a powerful 3D model combined with the implementation of a calibrated empirical permanent deformation model.

关键词： Ballastless track Train speed Numerical modelling Transition zone Critical speed

All-electron ZORA triple zeta basis sets for the elements Cs-La and Hf-Rn

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Chinese Physics B 2023年第9期32卷 242-249页

作者： antônio Canal Neto Francisco E.Jorge Henrique R.Cda Cruz Departamento de Física Universidade Federal do Espírito Santo29075-910 VitóriaESBrazil

Segmented all-electron basis set of triple zeta valence quality plus polarization functions(TZP)for the elements of the fifth row to be used together with the zero-order regular approximation(ZORA)is carefully *** correctly describe electrons distant from atomic nuclei,the basis set is augmented with diffuse functions giving rise to a set designated as *** the ZORA-B3LYP theoretical level,these sets are used to calculate the ionization energy and mean dipole polarizability of some atoms,bond length,dissociation energy,and harmonic vibrational frequency of diatomic ***,these results are compared with the theoretical and experimental data found in the *** considering that our sets are relatively compact,they are sufficiently accurate and reliable to perform property calculations involving simultaneously electrons from the inner shell and outer *** performances of the ZORA and second-order Douglas-Kroll-Hess Hamiltonians are evaluated and the results are also discussed.

关键词： TZP-ZORA and ATZP-ZORA basis sets ZORA-B3LYP method Cs-La and Hf-Rn elements atomic and molecular properties

Immunomodulation as a neuroprotective strategy after spinal cord injury

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Neural Regeneration Research 2018年第3期13卷 423-424页

作者： Susana Monteiro antónio J. Salgado Nuno A. Silva Life and Health Sciences Research Institute(ICVS) School of MedicineUniversity of MinhoCampus de GualtarBragaPortugal ICVS/3B's-PT Government Associate Laboratory Braga/GuimaraesPortugal

The initial trauma to the spinal cord is just the starting point for a cascade of endogenous events that will collectively determine the injury extension. These secondary events include, but are not limited to： glutamate excitoxicity, induction of apoptotic pathways, ionic imbalances and the development of a strong and dysfunctional inflammatory response. The secondary injury is associated to an aggravation of neuronal damage increasing the extent of neurological deficits （Ek et al., 2010）.

关键词： Immunomodulation as a neuroprotective strategy after spinal cord injury SCI

Gamma-aminobutyric acid(GABA) promotes recovery from spinal cord injury in lampreys: role of GABA receptors and perspective on the translation to mammals

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Neural Regeneration Research 2019年第10期14卷 1695-1696页

作者： Daniel Romaus-Sanjurjo María Celina Rodicio antón Barreiro-Iglesias Department of Functional Biology CIBUS Faculty of BiologyUniversidade de Santiago de Compostela

In mammals, spinal cord injury (SCI) is a devastating event that can lead to a permanent loss of motor, sensory and autonomic functions below the site of injury. In the last years, the role of different neurotransmitter systems on regeneration and recovery from SCI has been deciphered. For example, studies in lampreys have shown that neurotransmitters play a key role in modulating the survival and regeneration of brainstem descending neurons after SCI (Romaus-Sanjurjo et al., 2018;Sobrido-Camean et al., 2018).

关键词： In mammals devastating event regeneration

CFD predictions for hazardous area classification

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Chinese Journal of Chemical Engineering 2019年第1期27卷 21-31页

作者： Andrey Oliveira de Souza Aurélio Moreira Luiz ant?nio Tavernard Pereira Neto ant?nio Carlos Brandao de Araujo Heleno Bispo da Silva Sidinei Kebler da Silva Jose Jailson Nicacio Alves Federal Institute of Education Science and Technology of Paraiba Petrobras-Petróleo Brasileiro S.A. Federal University of Campina Grande

This study aimed to describe a Computational Fluid Dynamics(CFD) procedure using the ANSYS CFX software 16.1 and Design of Experiments for the determination of volume and extension of explosive atmospheres due to fugitive emissions of flammable *** multidimensional statistical sampling technique Latin Hypercube was used, which defined 100 simulations of random methane gas leak *** CFD model proved to be robust in predicting the extension and volume of the explosive atmosphere for orifice diameters from 0.1 to2.5 mm, pressure from 0.1 MPa to 12 MPa and temperatures from 0 ℃ to 400 ℃.It was found that the calculation domain must be parameterized 8 m in length for each millimeter of the diameter of the source of release to ensure the *** order not to lose precision for very small diameters, the mesh was parameterized with 50 elements along the orifice *** was proved that gravity does not influence the extension and volume of the explosive atmosphere at sonic *** deviation from the ideal gas behavior in the reservoir,achieved by applying the Soave–Redlich–Kwong equation of state, also has not significantly influenced the extension and volume of the explosive *** results showed that the size of the explosive atmosphere varies directly with the diameter of the source emission and reservoir pressure, and inversely with the temperature of the *** diameter of the source is the parameter that has the major effect on the extension of the explosive atmosphere, followed by the pressure and lastly the temperature of the reservoir.

关键词： Computational Fluid Dynamics Computer simulation Safety Fugitive emissions Classified area Flammable gas cloud

Using presence signs to discriminate between similar species

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Integrative Zoology 2009年第3期4卷 258-264页

作者： Sara M.SantOS antónio P.MIRA Maria Luz MATHIAS Centre of Environmental Biology Department of Animal BiologyUniversity of LisbonLisbonPortugal and Institute of Mediterranean Agricultural Sciences Department of BiologyUniversity ofévoraévoraPortugal

The Lusitanian and the Mediterranean pine voles(Microtus lusitanicus Gerbe,1879 and Microtus duodecimcostatus de Selys-Longchamps,1839)are fossorial sister species and have an allopatric pattern of distribution in Portugal,which includes a potential sympatry area in the centre of the *** present study aimed to determine the validity of using presence signs in the field for discrimination of the two species in an area of sympatry(Northern Alentejo)and the characteristics that achieve the best classification accuracy.A total of 175 trapping plots were sampled across the study *** to the set up of traps,ten presence signs were randomly selected for measure-ments of four variables:proportion of soil mounds,mean diameter of mounds,proportion of burrow openings and mean diameter of burrow *** the basis of a classification tree analysis,results showed that presence signs can be used to discriminate plots inhabited by one or the other species in the studied sympatry *** character-istic that most accurately enables species identification is the proportion of burrow openings:for every ten pres-ence signs found in a plot,if more than eight have an opening,then it is inhabited by ***(*** burrow openings with few or no mounds present);if eight or fewer have an opening,*** is present(*** mounds with few or no burrow openings).

关键词： Microtus duodecimcostatus Microtus lusitanicus presence signs species identification.