2,248 research outputs found
BlogForever D2.4: Weblog spider prototype and associated methodology
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 D5.3: User Questionnaires and Reports
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
An efficient multiple precision floating-point Multiply-Add Fused unit
Multiply-Add Fused (MAF) units play a key role in the processor's performance for a variety of applications. The objective of this paper is to present a multi-functional, multiple precision floating-point Multiply-Add Fused (MAF) unit. The proposed MAF is reconfigurable and able to execute a quadruple precision MAF instruction, or two double precision instructions, or four single precision instructions in parallel. The MAF architecture features a dual-path organization reducing the latency of the floating-point add (FADD) instruction and utilizes the minimum number of operating components to keep the area low. The proposed MAF design was implemented on a 65 nm silicon process achieving a maximum operating frequency of 293.5 MHz at 381 mW power
BlogForever D5.2: Implementation of Case Studies
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
Rotational excitation of methylidynium (CH+) by a helium atom at high temperature
We aim to obtain accurate rate coefficients for the collisional excitation of
CH+ by He for high gas temperatures. The ab initio coupled-cluster [CCSD(T)]
approximation was used to compute the interaction potential energy. Cross
sections are then derived in the close coupling (CC) approach and rate
coefficients inferred by averaging these cross sections over a
Maxwell-Boltzmann distribution of kinetic energies. Cross sections are
calculated up to 10'000 cm^-1 for J ranging from 0 to 10. Rate coefficients are
obtained at high temperatures up to 2000 K.Comment: 4 pages, 3 figures, table with rate coefficients, accepted for
publication by A&
Synchronization and Multiple Group Server Support for Kepler
In the last decade literally thousands of digital libraries have emerged but one of the biggest obstacles for dissemination of information to a user community is that many digital libraries use different, proprietary technologies that inhibit interoperability. Kepler framework addresses interoperability and gives publication control to individual publishers. In Kepler, OAI-PMH is used to support personal data providers or archivelets . . In our vision, individual publishers can be integrated with an institutional repository like Dspace by means of a Kepler Group Digital Library (GDL). The GDL aggregates metadata and full text from archivelets and can act as an OAI-compliant data provider for institutional repositories. The basic Kepler architecture and it working have been reported in earlier papers. In this paper we discuss the three main features that we have recently added to the Kepler framework: mobility support for users to switch transparently between traditional archivelet s to on-server archivelets, the ability of users to work with multiple GDLs, and flexibility to individual publishers to build an OAI-PMH compliant repository without getting attached to a GDL
Topological Phases near a Triple Degeneracy
We study the pattern of three state topological phases that appear in systems
with real Hamiltonians and wave functions. We give a simple geometric
construction for representing these phases. We then apply our results to
understand previous work on three state phases. We point out that the ``mirror
symmetry'' of wave functions noticed in microwave experiments can be simply
understood in our framework.Comment: 4 pages, 1 figure, to appear in Phys. Rev. Let
The role of intercellular adhesion molecule-1 in head and neck cancer
The intercellular adhesion molecule-1 (ICAM-1) is a member of the immunoglobulin gene superfamily of adhesion molecules expressed in multiple human tissues and participating in various physiologic and pathophysiologic processes of the human body. The alterations in the expression of ICAM-1 in the various types of the cancer of the head and neck are discussed in this mini-review following the existing status from the current literature. Possible applications of this developing knowledge in the diagnosis and prognosis of head and neck cancer are briefly mentioned.Молекулы межклеточной адгезии (ICAM-1), являющиеся продуктом гена — члена суперсемейства генов иммуноглобулинов, экспрессированы в клетках многих тканей человека и принимают участие в ряде физиологических и патофизиологических процессов. В мини-обзоре обобщены последние данные доступной литерату ры об изменении уровня экспрессии IG4M-1 при раке головы и шеи. а также обсуждены возможности применения знаний о молекулах адгезии в области диагностики и прогноза заболевания
Cold heteromolecular dipolar collisions
We present the first experimental observation of cold collisions between two
different species of neutral polar molecules, each prepared in a single
internal quantum state. Combining for the first time the techniques of Stark
deceleration, magnetic trapping, and cryogenic buffer gas cooling allows the
enhancement of molecular interaction time by 10. This has enabled an
absolute measurement of the total trap loss cross sections between OH and
ND at a mean collision energy of 3.6 cm (5 K). Due to the dipolar
interaction, the total cross section increases upon application of an external
polarizing electric field. Cross sections computed from \emph{ab initio}
potential energy surfaces are in excellent agreement with the measured value at
zero external electric field. The theory presented here represents the first
such analysis of collisions between a radical and a closed-shell
polyatomic molecule.Comment: 7 pages, 5 figure
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