WorldCat Identities

Anagnostopoulos, Konstantinos

Overview
Works: 18 works in 24 publications in 2 languages and 31 library holdings
Genres: Academic theses  Conference papers and proceedings 
Roles: Author, Contributor, Editor, Other
Publication Timeline
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Most widely held works by Konstantinos Anagnostopoulos
Computational physics : a practical introduction to computational physics and scientific computing by Konstantinos Anagnostopoulos( Book )

5 editions published between 2014 and 2016 in English and held by 6 WorldCat member libraries worldwide

Corfu Summer Institute on Elementary Particle Physics (CORFU2005) : 4-26 September 2005, Corfu, Greece( )

1 edition published in 2006 in English and held by 3 WorldCat member libraries worldwide

Proceedings of the workshop on noncommutative field theory and gravity, (CORFU2013), 08-15 September 2013, Corfu (Greece)( )

1 edition published in 2014 in English and held by 2 WorldCat member libraries worldwide

Complex Langevin analysis of the spontaneous symmetry breaking in dimensionally reduced super Yang-Mills models by Konstantinos Anagnostopoulos( )

1 edition published in 2018 in English and held by 2 WorldCat member libraries worldwide

Characterisation of real-world CO2 variability and implications for future policy instruments( )

2 editions published in 2017 in English and held by 2 WorldCat member libraries worldwide

There is increasing evidence suggesting that real-world fuel consumption and CO2 emissions improvements in the last decade have been much lower than the officially reported ones. Scientific studies show that the offset between officially reported values and real-world vehicle CO2 emissions in Europe has constantly increased over the last years. The difference between officially reported and actual CO2 emissions of vehicles has three main implications: a) it undermines the collective effort to reduce greenhouse gas emissions in Europe, b) it creates an unfair playing field for different competitors, and c) it affects the credibility of vehicle manufacturers. As a fundamental step to deal with this issue the European Commission has replaced the old and outdated NEDC test procedure used so far in the emission type-approval of vehicles by the Worldwide harmonized Light vehicles Test Procedure (WLTP). Being a lab-based test-procedure, the WLTP, by its nature, can only cover part of the CO2 gap. Some stakeholders have suggested that the remaining gap could be tackled by additional measures based on real-world measurements. The objective of the present report is to analyse possible ways to deal with the remaining CO2/fuel consumption gap. In particular, fleet-wide monitoring of real-world fuel consumption and model-based tools able to provide customized information to road users are the measures suggested. In addition, the paper presents experimental evidence on the variability of the CO2/fuel consumption of vehicles, putting into question the idea that a single central estimate of these quantities may be sufficient
Performance Measurement of Technology-Production Base of the Firms: Ascertaining Their Strategic Competitive Advantage by Panayiotis Sioutis( )

1 edition published in 2014 in English and held by 2 WorldCat member libraries worldwide

Effect of laparoscopic liver resection versus the open technique on hepatocyte regenerating activity in the rat by Petros Ypsilantis( )

1 edition published in 2019 in English and held by 2 WorldCat member libraries worldwide

Interleukin-1 associations in inflammatory bowel disease and the enteropathic seronegative spondylarthritis by Periklis Vounotrypidis( )

1 edition published in 2013 in English and held by 2 WorldCat member libraries worldwide

Corfu Summer Institute on Elementary Particles and Physics : Workshop on Non Commutative Field Theory and Gravity, CNCFG2010, September 8-12, 2010, Corfu, Greece by Workshop on Non Commutative Field Theory and Gravity( )

1 edition published in 2010 in English and held by 2 WorldCat member libraries worldwide

The quantum spacetime of c 0 2 d gravity by Jan Ambjørn( Book )

1 edition published in 1997 in English and held by 1 WorldCat member library worldwide

COMPUTATIONAL PHYSICS, VOL II by Konstantinos Anagnostopoulos( Book )

1 edition published in 2014 in English and held by 1 WorldCat member library worldwide

Apologia henos aiōna pou pheugei by Konstantinos Anagnostopoulos( Book )

1 edition published in 2009 in Greek, Modern and held by 1 WorldCat member library worldwide

Out-of-Plane Compressive Response of Honeycomb Cores Used in Sandwich Composites by Konstantinos Anagnostopoulos( )

1 edition published in 2019 in English and held by 1 WorldCat member library worldwide

Sandwich structural elements consist of two metallic or non-metallic laminated skins separated by a lightweight thicker core layer, maximizing in this manner weight efficiency and structural performance. From the available core configurations, phenolic resin impregnated Nomex® paper honeycomb cores are highly preferred in aerospace industry because of their lower density, excellent thermal resistance, and curved shape adaptability. Despite the inherent benefits of Nomex® paper sandwich structures, their impact response is still questionable. Towards this direction, a series of simulated hail ice impact tests was performed on flat carbon fiber sandwich panels via gas gun test apparatus to assess Nomex® paper core damage. Impact test results revealed significant core crushing in the form of cell collapse without any externally visible signs of damage on the impacted skin surface.Since high-velocity impact tests on sandwich panels are by nature highly complex, the out-of-plane response of over-expanded Nomex® cores was phenomenologically characterized through quasi-static flatwise compression tests on stabilized sandwich core coupons. Localized detachment and crushing of the phenolic resin accumulation regions between adjacent cell walls, were the main damage modes that triggered honeycomb collapse.X-ray Computed Tomography (CT) scans were also employed to assess damage modes on the interior cells of tested sandwich core coupons. Given several sets of X-ray CT scan 3D data, an automated B-spline image-based reconstruction scheme was developed to numerically capture scanned honeycomb core geometries. Different applications of the proposed reconstruction scheme are going to be presented. Finally, the contribution of the phenolic resin accumulation regions on the out-of-plane response was investigated through numerical modeling of the reconstructed B-spline geometry. To this end, constituent material properties were determined through uniaxial tensile testing on in-situ p
Out-of-Plane Compressive Response of Honeycomb Cores Used in Sandwich Composites by Konstantinos Anagnostopoulos( )

1 edition published in 2019 in English and held by 1 WorldCat member library worldwide

Sandwich structural elements consist of two metallic or non-metallic laminated skins separated by a lightweight thicker core layer, maximizing in this manner weight efficiency and structural performance. From the available core configurations, phenolic resin impregnated Nomex® paper honeycomb cores are highly preferred in aerospace industry because of their lower density, excellent thermal resistance, and curved shape adaptability. Despite the inherent benefits of Nomex® paper sandwich structures, their impact response is still questionable. Towards this direction, a series of simulated hail ice impact tests was performed on flat carbon fiber sandwich panels via gas gun test apparatus to assess Nomex® paper core damage. Impact test results revealed significant core crushing in the form of cell collapse without any externally visible signs of damage on the impacted skin surface. Since high-velocity impact tests on sandwich panels are by nature highly complex, the out-of-plane response of over-expanded Nomex® cores was phenomenologically characterized through quasi-static flatwise compression tests on stabilized sandwich core coupons. Localized detachment and crushing of the phenolic resin accumulation regions between adjacent cell walls, were the main damage modes that triggered honeycomb collapse. X-ray Computed Tomography (CT) scans were also employed to assess damage modes on the interior cells of tested sandwich core coupons. Given several sets of X-ray CT scan 3D data, an automated B-spline image-based reconstruction scheme was developed to numerically capture scanned honeycomb core geometries. Different applications of the proposed reconstruction scheme are going to be presented. Finally, the contribution of the phenolic resin accumulation regions on the out-of-plane response was investigated through numerical modeling of the reconstructed B-spline geometry. To this end, constituent material properties were determined through uniaxial tensile testing on in-situ phenolic resin impregnated paper coupons as well as bare aramid paper coupons. Numerical simulations on sandwich cores without the phenolic resin accumulations yielded significant reduction of the collapse limit, validating in this way the experimental observations
Proceedings of the "Schools and Workshops on Elementary Particle Physics and Gravity" (CORFU2010), 29 August - 12 September 2010, Corfu (Greece)( Book )

1 edition published in 2011 in English and held by 1 WorldCat member library worldwide

Development of a CO2 certification and monitoring methodology for heavy duty vehicles : proof of concept report( )

2 editions published in 2014 in English and held by 1 WorldCat member library worldwide

The European Commission is preparing a strategy to address Heavy-Duty Vehicles (HDVs) CO2 emissions that, contrary to cars and vans CO2 emissions, are currently not regulated. Considering the current knowledge gap on HDV CO2 emissions, an important step appears to be the development of vehicle simulation, new testing methods and practices and other provisions for vehicle categorization and characterization. In order to investigate the plausibility of the aforementioned simulation-based approach an extensive experimental study was launched by the European Commission DG JRC and DG Climate Change, in collaboration with vehicle manufacturers (DAF, DAIMLER, IVECO) and external consultants (TU- Graz), also referred to as Proof of Concept study. Scope of this report is to summarize the first findings of the Proof of Concept activity and provide further insight with regard to future steps in the direction of the completion of the CO2 emissions monitoring and certification framework.^As shown, simulation tools can reproduce both real world and chassis dyno performance of Heavy Duty vehicles with satisfactory accuracy. In this exercise and for the HDV categories tested, the simulated fuel consumption results were found always within a +-3.5% range compared to the real world measurement, and in most cases even closer (in the order of +-1.5%). Analysis of different simulation scenarios showed that the declaration method considered, although not finalised yet, can provide results that are representative of the real world performance of HDVs, provided that the appropriate input data are available. The accuracy of the simulation results was not equally high throughout the entire trips investigated, something that is attributed to lack of certain input data, the immaturity of the simulation methodology which is still being optimized and inherited model and measurement inaccuracies.^Such deviations are expected to improve significantly in later versions of the methodology. Important effort is being put in the development of methods to generate input data. For the long haul, regional/delivery trucks and coaches the most important parameters are aerodynamic characteristics, rolling resistance, mass, engine map, gearbox map, axle efficiency and driver performance simulation. In the report a methodologies for deriving input parameters for aerodynamic and rolling resistances and engine maps were investigated and proven mature enough to support C02 declaration. Further development and validation is necessary for the rest of the input parameters mentioned. For aerodynamic resistances the novel method tested provided results to good accuracy, presented high repeatability and good reproducibility and sensitivity characteristics.^Although the declaration methodology in its present form has reached a satisfactory level regarding the ability to quantify CO2 emissions from specific categories of HDV, there are still issues of importance that should be addressed in the months to come through a possible validation phase and/or a broader pilot phase. Emphasis should be placed on expanding the pool of data available regarding vehicles and components, particularly for HDV categories not investigated in this report, finalize the details of existing input data calculation methodologies, derive default values for non-measurable/non standardized input, optimize the performance of the vehicle simulation software and align the declaration methodology with existing regulatory framework for HDVs
Approaches to quality in the construction industry by Konstantinos Anagnostopoulos( Book )

1 edition published in 2001 in English and held by 0 WorldCat member libraries worldwide

 
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Audience level: 0.85 (from 0.59 for Corfu Summ ... to 1.00 for Approaches ...)

Computational physics : a practical introduction to computational physics and scientific computing COMPUTATIONAL PHYSICS, VOL II
Covers
COMPUTATIONAL PHYSICS, VOL II
Alternative Names
Anagnostopoulos, K. N. 1964-

Anagnostopoulos, Konstantinos 1964-

Anagnostopoulos, Konstantinos N.

Anagnostopoulos, Konstantinos N. 1964-

Anagnostopoulos, Kostas 1964-

Anagnostōpulos, K. N. 1964-

Anagnostōpulos, Kōnstantinos 1964-

Anagnostōpulos, Kōstas 1964-

Konstantinos N Anagnostopoulos wetenschapper

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