261 Works

Shear-Wave Splitting In Western Corinth Gulf, Greece, In A Period That Includes The Occurrence Of Two Strong Earthquakes

Giannopoulos Dimitrios, Sokos Efthimios & Konstantinou I. Konstantinos
Geophysical Research Abstracts
Vol. 15, EGU2013-8786, 2013
EGU General Assembly 2013

Dbaas With Enterprise Manager

Kyriaki Panagidi, Andrei Dumitru & Ignacio Coterillo Coz
The new release of Oracle 12c contains new features which satisfy continuously growing needs demands for resources. Large enterprises nowadays may use hundreds or thousands of databases combined with different platforms on multiple physical servers. Because of improvements in hardware technology, especially the increase in the number of CPUs, servers are able to handle heavier workloads than before. A database may use only a fraction of the server hardware capacity, which can waste hardware resources....

Software Defined Networking For Communitynetwork Testbeds

Emmanouil Dimogerontakis, Ivan Vilata & Leandro Navarro
Wireless Community Networks have received increasing attention the latest years. In an effort to set the cornerstone for an internet without central authorities and monopolies, network engineers throughout the world have started creating community networks. To enhance this effort, Community-lab, a wireless community networks testbed, was created allowing researchers to experiment with new protocols and applications in a realistic environment. Nevertheless, this testbed does not offer the ability to perform L2 experiments. To address this...

A Monitoring System For Community-Lab

Navaneeth Rameshan, Leandro Navarro & Ioanna Tsalouchidou
Community-Lab is an open and distributed infrastructure that provides a testbed for researchers to carry out experiments within wireless community networks. Community networks are an emergent model of infrastructures built with off-the-shelf communication equipment that aims to satisfy a community's demand for Internet access and ICT services. Community-Lab consists of a set of nodes integrated into the existing community networks to give researchers access to the network and to allow them to perform experiments. The...

New Non-Zero Gauge Invariants Outside An Infinite Solenoid

Alcides Garat
We are going to introduce a Gedanken experiment by means of which we will prove the existence of new non-zero gauge invariants outside an infinite solenoid. To this end we will introduce a set of new tetrads that will unravel the relevance of electromagnetic potentials, electromagnetic field and new gauge invariants within the context of a unified geometric structure.

Overview Of E-Infrastructure And Applications In Africa

Bruce Becker
The keynote presentation from the CHAIN-REDS/ei4Africa workshop at the 2013 Ubuntunet Connect Conference. The presentation covers the following aspects : Opening thoughts on being African
Scientific collaboration in Africa – some example
Research in Africa – everything else
Infrastructures collaborating with communities
How do we sustain e-Science in Africa ?

Combining Active And Passive Airborne Remote Sensing To Quantify No2 And Ox Production Near Bakersfield, Ca

Sunil Baidar, Rainer Volkamer, Raul Alvarez, Alan Brewer, Fay Davies, Andy Langford, Hilke Oetjen, Guy Pearson, Christoph Senff & R. Michael Hardesty
Aims: The objective of this study is to demonstrate the integrated use of passive and
active remote sensing instruments to quantify the rate of NOx emissions, and investigate
the Ox production rates from an urban area.
Place and Duration of Study: A research flight on June 15, 2010was conducted over
Bakersfield, CA and nearby areas with oil and natural gas production.
Methodology: Three remote sensing instruments, namely the University of Colorado

Simulating Radiative Accretion Disks In General Relativity

Aleksander Sadowski
Simulating radiative accretion disks in general relativity.

The Delicate Motif Of Globular Clusters In Massive Ellipticals: Methodology And First Results

Raffaele D'Abrusco
Slides for a presentation given to the CfA Postdoc Colloquium 2013.

Proton Acceleration In Coronal Shocks

Kamen Kozarev
Solar energetic particles (SEP) are produced in powerful eruptions originating on the Sun. In past decades, there has been considerable debate and even confusion as to what the primary source of SEPs is - flares low in the corona, or coronal mass ejection-driven shock waves higher up. Recent observational and modeling work has suggested that traveling shocks can form as low in the corona as 1.2 solar radii, and that they may accelerate charged particles...

Measuring Black Hole Spin In Agn

Laura Brenneman
Presentation at the 2013 CfA Postdoc Symposium

The Independence Of Stellar Mass-Loss Rates On Stellar Activity Based On Solar Observations

Ofer Cohen
Stellar mass-loss rates are an important input ingredient for stellar evolution models since they determine stellar evolution parameters such as stellar spin-down and increase in stellar luminosity through the lifetime of a star. Due to the lack of direct observations of stellar winds from Sun-like stars stellar X-ray luminosity and stellar level of activity are commonly used as a proxy for estimating stellar mass-loss rates. However, such an intuitive activity - mass-loss rate relation is...

The Early Stages Of Planet Formation

Tilman Birnstiel
Slides of a talk presented at the CfA Postdoc Symposium 2013 at the Harvard-Smithsonian Center for Astrophysics

Planetary Dynamics, Satellite Stability And Long-Period Planets

Matthew Payne
I describe my on-going work on planetary dynamics at the Harvard-Smithsonian CfA.

The Quality Of Massive Open Online Collaboration

Oliver Ferschke
User generated content is the main driving force of the increasingly social web. Participatory and collaborative content production has largely replaced the traditional ways of information sharing and make up a large share of the daily information consumed by web users. The main properties of user generated content are a low publication threshold and little or no editorial control. While this has positively affected the variety and timeliness of the available information, it causes an...

Blogforever D5.1: Design And Specification Of Case Studies

S. Arango-Docio, P. Sleeman, E. Pinsent, G. Gkotsis, T. Farrell, S. Kopidaki & M. Rynning
This document presents the specification and design of six case studies for testing the BlogForever platform implementation process. The report explains the data collection plan where users of the repository will provide usability feedback through questionnaires as well as details of scalability analysis through the creation of specific log files analytics. The case studies will investigate the sustainability of the platform, that it meets potential users’ needs and that is has an important long term...

Computational Literary Genre Stylistics

Christof Schöch
The project in a nutshell: This project will investigate the relation between literary genres (generic facets) and style (stylistic attributes). Analyses are based on large collections of literary texts and use or develop state-of-the-art methods in computational stylistics and text analysis. This will enable the project to combine attention to minute stylistic details with the investigation of large trends and patterns in literary history. What does the project aim to accomplish? The project brings together...

Blogforever D2.5: Weblog Spam Filtering Report And Associated Methodology

Y. Kim, S. Ross, V. Banos, S. Kopidaki, K. Stepanyan, M. Rynning & N. Kasioumis
This report is written as a first attempt to define the BlogForever spam detection strategy. It comprises a survey of weblog spam technology and approaches to their detection. While the report was written to help identify possible approaches to spam detection as a component within the BlogForever software, the discussion has been extended to include observations related to the historical, social and practical value of spam, and proposals of other ways of dealing with spam...

Blogforever D2.4: Weblog Spider Prototype And Associated Methodology

M. Rynning, I. Manolopoulos, I. Tselepidis, M. Gulliksen, M. Joy, K. Stepanyan & V. Banos
The purpose of this document is to present the evaluation of different solutions for capturing blogs, established methodology and to describe the developed blog spider prototype.

Blogforever D5.5: Case Studies Comparative Analysis And Conclusions

V. Banos, S. Arango-Docio, E. Pinsent, P. Sleeman, Y. Manolopoulos & I. Trochidis
This report presents the analysis and conclusions of the BlogForever Case Studies based on internal and external testing results, as well as recorded system logs. The case studies are paramount for the evaluation of the performance and the impact of the BlogForever platform.

Neuro-Dynamic Programming For The Efficient Management Of Reservoir Networks

Daniele de Rigo, Andrea Emilio Rizzoli, Rodolfo Soncini-Sessa, Enrico Weber & Pietro Zenesi
Significance This article introduced in 2001 one of the very first successful applications of advanced machine learning techniques to solve complex, multicriteria management problems in water resources dealing with networks of water reservoirs. It applied approximate dynamic programming (here, neuro-dynamic programming - whose approximation of stochastic dynamic programming relies on artificial neural networks) to the integrated water resources management. The methodology is general enough to be potentially useful in other problems of integrated natural resources...

Blogforever D4.7: Final Weblog Digital Repository Component

J. Garcia Llopis, R. Jimenez Encinar, S. Postaci, A. Cinar, H. Kalb & T. Simko
This report presents the implementation activities carried out for the development of the
final BlogForever digital repository component. In this respect, it provides a complete
description of the development performed according to the design done previously, served
with a detailed list of implementation descriptions which explain in more detail what and
how has been developed. Furthermore, this report outlines the adopted collaboration
workflow together with the technologies utilised.

Blogforever D5.3: User Questionnaires And Reports

V. Banos, S. Arango-Docio, P. Sleeman, E. Pinsent, G. Gkotsis, K. Stepanyan, M. Rynning, S. Kopidaki, Y. Manolopoulos & I. Trochidis
This report presents the feedback gathered from third party users during the BlogForever Case Studies. Therefore, the research framework is defined and the case studies results are presented, followed by a summary of conclusions and remarks.

Blogforever D4.8: Final Blogforever Platform

J. Garcia Llopis, R. Jimenez Encinar, S. Postaci, A. Cinar, G. Gkotsis, M. Rynning, M. Gulliksen, V. Banos, N. Naziridis, P. Chatzikamaris & I. Trochidis
This report presents the integration of the two components, the nal weblog Spider and the final webblog digital Repository, fully functional and communicating optimally with each other, resulting in the Final BlogForever Platform. The implementation activities carried out during the last period as well as a detailed documentation of both components are provided.

Blogforever D5.2: Implementation Of Case Studies

S. Arango-Docio, E. Pinsent, P. Sleeman, G. Gkotsis, K. Stepanyan, M. Rynning, S. Kopidaki, I. Trochidis, S. Arampatzis, I. Manolopoulos & E. Banos.
This document presents the internal and external testing results for the BlogForever case studies. The evaluation of the BlogForever implementation process is tabulated under the most relevant themes and aspects obtained within the testing processes. The case studies provide relevant feedback for the sustainability of the platform in terms of potential users’ needs and relevant information on the possible long term impact.

Registration Year

  • 2013

Resource Types

  • Text