Search results for "2010"

showing 10 items of 449 documents

Simplified analytical model for moment–axial force domain in the presence of shear in R.C. members externally strengthened with steel cages

2015

Equations for a hand calculation of moment–axial force domain in the presence of shear for R.C. beam/column externally strengthened with steel angles and strips are developed. The analytical derivation is made assuming, for axial load and flexure, the equivalent stress-block parameters for internal forces, considering the confinement effects induced in the concrete core by external cages both in the cases of strips or angles yielding. Limit states due to bond failure, concrete crushing and yielding of steel angles and strips in flexure and in shear, including moment-to-shear interaction, are considered. The proposed model gives results in a good agreement with available experimental data an…

Axial force–moment interaction; Concrete beams; Concrete columns; Shear–moment interaction; Steel angles; Strengthening; Strips; Building and Construction; Civil and Structural Engineering; Mechanics of Materials; Materials Science (all)Materials scienceAxial force–moment interactionMaterials ScienceConcrete beams0211 other engineering and technologiesBond failureConcrete beam020101 civil engineering02 engineering and technologySTRIPSSteel angles0201 civil engineeringlaw.inventionlawStrips021105 building & constructionConcrete columnsMechanics of MaterialGeneral Materials ScienceCivil and Structural EngineeringHand calculationShear–moment interactionbusiness.industryBuilding and ConstructionStructural engineeringSettore ICAR/09 - Tecnica Delle CostruzioniShear (geology)Mechanics of MaterialsSteel angleSolid mechanicsStrengtheningAxial loadStripMaterials Science (all)Axial forcebusinessInternal forcesConcrete columnMaterials and Structures
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"Table 2" of "Measurements of |V(cb)|, form factors and branching fractions in the decays anti-B0 --> D*+ l- anti-nu/l and anti-B0 --> D+ l- an…

1997

VCB is the KCM matrix element.

BBAR0 --> D+ MU- NUMUBARElectron productionBBAR0 --> D*(2010)+ MU- NUMUBARFORMFACTORBBAR0 --> D*(2010)+ E- NUEBARB0 --> D*(2010)- E+ NUEMuon production0.0B0 --> D- MU+ NUMUCharm productionB0 --> D*(2010)- MU+ NUMUB0 --> D- E+ NUEExclusiveBBAR0 --> D+ E- NUEBAR
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"Table 1" of "Measurements of |V(cb)|, form factors and branching fractions in the decays anti-B0 --> D*+ l- anti-nu/l and anti-B0 --> D+ l- an…

1997

The formfactors are evaluated at zero recoil of D meson. Two different methods are used (see text for details). VCB is the KCM matrix element. The formfactor fitted to dependence: FF(OM) = FF(1)*(1-CONST*(OM-1)).

BBAR0 --> D+ MU- NUMUBARElectron productionBBAR0 --> D*(2010)+ MU- NUMUBARFORMFACTORBBAR0 --> D*(2010)+ E- NUEBARB0 --> D*(2010)- E+ NUEMuon production0.0B0 --> D- MU+ NUMUCharm productionB0 --> D*(2010)- MU+ NUMUB0 --> D- E+ NUEExclusiveBBAR0 --> D+ E- NUEBARCONST
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"Table 3" of "Measurements of |V(cb)|, form factors and branching fractions in the decays anti-B0 --> D*+ l- anti-nu/l and anti-B0 --> D+ l- an…

1997

VCB is the KCM matrix element.

BBAR0 --> D+ MU- NUMUBARElectron productionBBAR0 --> D*(2010)+ MU- NUMUBARFORMFACTORBBAR0 --> D*(2010)+ E- NUEBARB0 --> D*(2010)- E+ NUEMuon production0.0B0 --> D- MU+ NUMUCharm productionB0 --> D*(2010)- MU+ NUMUB0 --> D- E+ NUEExclusiveBBAR0 --> D+ E- NUEBARCONSTN=VCB
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Cold recycling of reclaimed asphalt pavements

2018

Pavement engineers have in front of them multiple challenges linked to addressing issues related to social development and society’s expanding needs. One of the most substantial of these issues is perhaps how to effectively rehabilitate and/ or maintain the existing road network while preserving and sustaining limited natural resources. The re-usage of existing pavement materials to reconstruct/ rehabilitate our future pavements is the solution that is now more and more selected by the different road administrations around the world. However, upon closer inspection, one can find many areas and details, not negligible issues, that are simply extensions of HMA technology (i.e. mix design proc…

BSM – bitumen stabilized materialsRecycling Reclaimedasphalt Foambitumen Bituminous emulsion Cohesion test Fragmentation test BSM – bitumen stabilized materialsComputer scienceProcess (engineering)Materials Science (miscellaneous)Cohesion test0211 other engineering and technologies020101 civil engineering02 engineering and technologyBuilding and ConstructionFragmentation testMix designNatural resourceConstruction engineering0201 civil engineeringBituminous emulsionAsphalt021105 building & constructionBituminous emulsion; BSM – bitumen stabilized materials; Cohesion test; Foam bitumen; Fragmentation test; Reclaimed asphalt; Recycling; Civil and Structural Engineering; Building and Construction; Materials Science (miscellaneous)Foam bitumenRecyclingProtocol (object-oriented programming)Reclaimed asphaltCivil and Structural Engineering
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Zvaigžņotā Debess: 2010/11, Ziema (210)

2010

Contents: “ZVAIGŅOTĀ DEBESS” FORTY YEARS AGO: Bursting Stars. J. Francman (abridged). Geodesists Help Renew the Spire of St. Peter’s Church. J. Klētnieks (abridged). DEVELOPMENTS in SCIENCE: The Solar Neutrino Problem. O. Smirnova. NEWS: At Last the Planet at the Star β Pictoris Is Imaged. A. Alksnis, Z. Alksne. SPACE RESEARCH and EXPLORATION: The Trail of an Asteroid Reveals a Recent Collision. A. Alksnis. INTERNATIONAL YEAR of ASTRONOMY 2009: International Year of Astronomy 2009 in Philately. The Rest of the World except Series EUROPA (concluded). J. Limansky. ACADEMIC STAFF of the UNIVERSITY of LATVIA: Assistant Professor in Physics Ojārs Šmits (24.04.1930.-14.03.1993.) of the Latvian Un…

Baldones skolēni Maskavā un LisabonāStarptautiskie kosmiskie lidojumi – pastmarkasPubliskie saules pulksteņi LatvijāAlfonam Apinim – 100Vistālākā galaktikaEmanuels GrinbergsJupitera bombardēšana – amatieru novērojumiPlanētu redzamības kompleksā diagramma 2011J.Stradiņa monogrāfija „Zinātnes un augstskolu sākotne Latvijā”Astronomija filatēlijāSaules neitrīnoRainis Zvaigžņotā Debess un DainasNASA’s zonde Deep Impact un komēta Hartley 2Fricis GulbisAsteroīda P/2010 A2 astePilns Saules aptumsums - 2010.g. 11.jūlijs Francijas PolinēzijaGrāmata „Einšteins. Viņa dzīve un Visums”Astronomiskās parādības - 2010Astronomiskās parādības - 2011Par Nibiru un Pasaules galuLU fizikas docents Ojārs Šmits (1930-1993)Koncerts Astrophonia ValmierāLatvijas Astronomijas biedrības observatorija SiguldāPar misēkļiem Astronomiskajā kalendārā 2011V.Struves ģeodēziskais loks - pastmarkasValdemāram Murevskim – 100Zvaigznes Gleznotāja β planētaMstislavam Keldišam – 100Jaunākie ieguvumi “Zvaigžņotās Debess” bibliotēkāDaļējs Saules aptumsums 2011.gada 4.janvārīMarsa ekspedīciju kuģu Orion un Dragon maketiSkaitļu pieraksti senajās kultūrās
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Novel performance-based technique for predicting maintenance strategy of bitumen stabilised ballast

2018

Abstract Despite being the most used worldwide, railway ballasted tracks presents high maintenance cost related to ballast settlement and particle degradation. With the aim of reducing life cycle costs, bitumen stabilised ballast (BSB) has been recently proposed as a relatively cheap alternative maintenance solution to be applied to existing tracks. This study aims at assessing the potential advantages of this technology, defining a novel maintenance strategy of traditional ballasted track-beds. A protocol for the application of the BSB technology and its associated maintenance strategy is defined. To estimate minor and major maintenance operations of BSB scenario in comparison to tradition…

BallastEngineeringMaintenance0211 other engineering and technologiesRailway ballastDegradation model020101 civil engineering02 engineering and technologyBitumen stabilisationTrack (rail transport)0201 civil engineeringTamping021105 building & constructionLife cycle costsSettore ICAR/04 - Strade Ferrovie Ed AeroportiGeneral Materials ScienceSensitivity (control systems)Civil and Structural EngineeringSettlementbusiness.industrySettlement (structural)Maintenance strategyBuilding and ConstructionReliability engineeringBitumen stabilisation; Degradation model; Life cycle approach; Maintenance; Railway ballast; Settlement; Tamping; Civil and Structural Engineering; Building and Construction; Materials Science (all)AsphaltMaterials Science (all)businessLife cycle approachMarine engineeringConstruction and Building Materials
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Static Performances of Timber- and Bamboo-Concrete Composite Beams: A Critical Review of Experimental Results

2021

The use of composite beams made with traditional concrete and bio-based materials (such as timber and bamboo) is a valuable solution to reduce the environmental impact of the building sector. Timber-Concrete Composite (TCC) beams have been used for decades in structural applications such as new buildings, refurbishment of old timber structures, and bridges. Recently, different researchers suggested composite beams based on engineered bamboo, commonly named Bamboo-Concrete Composite (BCC) beams. This study presents a systematic comparison of structural performances and connection behavior of TCC and BCC beams under short-term static load. TCCs beams are compared to BCC ones using similar she…

BambooMaterials sciencebusiness.industry0211 other engineering and technologiesFailure modeMechanical properties020101 civil engineering02 engineering and technologyBuilding and ConstructionStructural engineeringShear connectorBending performancesFailure modesShear connectorsComposite beams0201 civil engineeringBamboo-concreteSettore ICAR/09 - Tecnica Delle Costruzioni021105 building & constructionbusinessBending performanceMechanical propertieTimber-concreteThe Open Construction & Building Technology Journal
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Occurrence of Fibrous Sepiolite in Alkaline Basalt in the Valley of Alfara (Baix Ebre, Tarragona, Spain)

1994

BasaltGeochemistry and PetrologySepioliteGeochemistryMineralogy020101 civil engineering02 engineering and technology010502 geochemistry & geophysics01 natural sciencesGeology0201 civil engineering0105 earth and related environmental sciencesClay Minerals
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Effects of halloysite content on the thermo-mechanical performances of composite bioplastics

2020

Abstract The aim of this study is the design and preparation of Mater-Bi/halloysite nanocomposite materials that could be employed as bioplastics alternative to the petroleum derived products. The biocomposite materials at variable halloysite content (from 0 to 30 wt%) were prepared by using the solvent casting method. We investigated the mechanical behaviour and the thermal properties of the prepared nanocomposites in order to estimate their suitability as biocompatible packaging materials. The thermo-mechanical characteristics were correlated to the nanocomposites' morphologies, which were studied by Scanning Electron Microscopy (SEM). As a general result, the physico-chemical performance…

BiopolymerMaterials scienceComposite number020101 civil engineering02 engineering and technologyDMAengineering.materialHalloysite0201 civil engineeringGeochemistry and PetrologyUltimate tensile strengthThermal stabilityComposite materialchemistry.chemical_classificationTGANanocompositeNanocompositeHalloysiteGeologyPolymer021001 nanoscience & nanotechnologyCastingBioplasticchemistryengineeringBiocomposite0210 nano-technologyApplied Clay Science
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