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The data link is an important component of unmanned aerial vehicle(UAV), connecting UAV to ground system. First, the UAVs are classified according to fligh height and payload. Based on that, the current status of foreign military UAV data link is summarized. Secondly, some typical UAV data links such as Digital Data Link(DDL), Tactical Common Data Link(TCDL), and Quint Network Technology(QNT) data link are introduced and the trends of UAV data link are analyzed. Finally, the development experience of foreign military data link is summarized. The related information provides reference for those engaged in UAV and data link. [ABSTRACT FROM AUTHOR]

ABCD is a free and open integrated library management software based on the CDS/ISIS technology. Its first version, launched in December 2009, provided a MARC 21 format database. The second version, released mid-2012, provided the second international MARC format database, namely UNIMARC. But the MARC format is only designed for computer processing; for human beings, other formats like ISBD, AACR, MARC tags or subject/content are more indicated. This paper presents two display formats incorporated into the UNIMARC database that allow records to be displayed and printed according to ISBD specifications or dumped according to the MARC tags pattern. [ABSTRACT FROM PUBLISHER]

Separation of Duties (SoD) aims at preventing fraud and errors by distributing tasks and associated authorizations among multiple users. Li and Wang [2008] proposed an algebra (SoDA) for specifying SoD requirements, which is both expressive in the requirements it formalizes and abstract in that it is not bound to a workflow model. In this article, we bridge the gap between the specification of SoD constraints modeled in SoDA and their enforcement in a dynamic, service-oriented enterprise environment. We proceed by generalizing SoDA's semantics to traces, modeling workflow executions that satisfy the respective SoDA terms. We then refine the set of traces induced by a SoDA term to also account for a workflow's control-flow and role-based authorizations. Our formalization, which is based on the process algebra CSP, supports the enforcement of SoD on general workflows and handles changing role assignments during workflow execution, addressing a well-known source of fraud. The resulting CSP model serves as blueprint for a distributed and loosely coupled architecture where SoD enforcement is provisioned as a service. This concept, which we call SoD as a Service, facilitates a separation of concerns between business experts and security professionals. As a result, integration and configuration efforts are minimized and enterprises can quickly adapt to organizational, regulatory, and technological changes. We describe an implementation of SoD as a Service, which combines commercial components such as a workflow engine with newly developed components such as an SoD enforcement monitor. To evaluate our design decisions and to demonstrate the feasibility of our approach, we present a case study of a drug dispensation workflow deployed in a hospital. [ABSTRACT FROM AUTHOR]

Abstract: Although numerous seismological programs are currently available, most of them suffer from the inability to manipulate different data formats and the lack of embedded seismological tools. SeismoGRAPHer, or simply SGRAPH, is a new system for maintaining and analyzing seismic waveform data in a stand-alone, Windows-based application that manipulates a wide range of data formats. SGRAPH was intended to be a tool sufficient for performing basic waveform analysis and solving advanced seismological problems. The graphical user interface (GUI) utilities and the Windows functionalities, such as dialog boxes, menus, and toolbars, simplify the user interaction with the data. SGRAPH supports common data formats, such as SAC, SEED, GSE, ASCII, and Nanometrics Y-format, and provides the ability to solve many seismological problems with built-in inversion tools. Loaded traces are maintained, processed, plotted, and saved as SAC, ASCII, or PS (post script) file formats. SGRAPH includes Generalized Ray Theory (GRT), genetic algorithm (GA), least-square fitting, auto-picking, fast Fourier transforms (FFT), and many additional tools. This program provides rapid estimation of earthquake source parameters, location, attenuation, and focal mechanisms. Advanced waveform modeling techniques are provided for crustal structure and focal mechanism estimation. SGRAPH has been employed in the Egyptian National Seismic Network (ENSN) as a tool assisting with routine work and data analysis. More than 30 users have been using previous versions of SGRAPH in their research for more than 3 years. The main features of this application are ease of use, speed, small disk space requirements, and the absence of third-party developed components. Because of its architectural structure, SGRAPH can be interfaced with newly developed methods or applications in seismology. A complete setup file, including the SGRAPH package with the online user guide, is available. [Copyright &y& Elsevier]