operating system support for embedded real time applications

... Corporation EURASIP Journal on Embedded Systems Volume 2008, Article ID 502768, 2 pages doi:10.1155/2008/502768 Editorial Operating System Support for Embedded Real- Time Applications Alfons Crespo, 1 Ismael ... embed- ded operating system must provide. Embedded systems can be defined as computing systems with tightly coupled hardware and software that are designed to p erform a dedicated function. The word embedded ... complex embedded systems supporting several operating execution environments as we can find in avionic applications. This variety of applications also implies that the prop- erties, platforms,...

Ngày tải lên: 21/06/2014, 22:20

Ngày tải lên: 28/06/2014, 02:20

Ngày tải lên: 14/11/2014, 06:51

... abstraction (EOA), for parametric safety verification of real- time systems in which “correct orderings of events” needed for system correctness are maintained by timing constraints on the systems’ behavior. ... model certain class of real- time systems like a biphase mark protocol [31]. The Alur-Dill timed automata framework [1] is arguably the best known framework to model a real- time system, and is the ... for real- time systems. International Journal on Software Tools for Technology Transfer (STTT), 1(1-2):123–133, 1997. [34] Dezhuang Zhang and Rance Cleaveland. Fast on-the-fly parametric real- time...

Ngày tải lên: 07/03/2014, 17:20

... service (QoS) in distributed real- time embedded (DRE) systems require QoS support and en- forcement from their underlying operating platforms that integrates many real- time capabilities, such as ... Schmidt, “A platform-independent com- ponent modeling language for distributed real- time and em- bedded systems,” in Proceedings of the11th IEEE Real Time and Embedded Technology and Applications ... “Integrated CORBA scheduling and resource management for distributed real- time embedded systems,” in Proceedings of the 11th IEEE Real Time on Embedded Technology and Applications Sym- posium (RTAS ’05), pp....

Ngày tải lên: 22/06/2014, 00:20

Ngày tải lên: 22/06/2014, 19:20

Ngày tải lên: 22/06/2014, 23:20

... failure symptoms for the maintenance programmer may not be interesting for fault tolerance research. For example, the unusual error message that the system printed to the screen before it went into ... ones. Unfortunately, checking for errors is expensive. No published figures are available regarding the cost of error checking in the DBMS, but run time checks for array bounds overruns in Fortran ... overhead caused by shadow paging. Although designed for the POSTGRES storage system, these algorithms would also be useful in a conventional storage system as support for logical logging. Using these techniques,...

Ngày tải lên: 28/04/2014, 13:32

... ordering also supports logarithmic -time insertion and deletion. Unfortunately, real- time en- gines sometimes have performance penalties because of the overhead of STL, both in time and memory. 31 TeamLRN ... could update the state of the graphics system for triangle motion and for camera motion. If you have in mind creating similar applications for other platforms such as the Macintosh or a PC running ... have seen a few systems in action in the illustrative samples: An application layer. This is dependent on the platform and operating system and includes window creation, graphics system initialization,...

Ngày tải lên: 04/06/2014, 11:53

... for expression studies in virus infected cells. Background Quantitative real- time PCR (QPCR) has become the favoured tool in mRNA expression analysis and also in virus diagnostics [1]. Real- time ... BioMed Central Page 1 of 5 (page number not for citation purposes) Virology Journal Open Access Research Reference gene selection for quantitative real- time PCR analysis in virus infected cells: ... [8-10]. The respective MOI and time of cell culture are shown in table 1 and were chosen to allow maximal infection as determined by immunofluorescence and real- time PCR [8-11]. For kinetic studies, cells...

Ngày tải lên: 18/06/2014, 22:20

... for expression studies in virus infected cells. Background Quantitative real- time PCR (QPCR) has become the favoured tool in mRNA expression analysis and also in virus diagnostics [1]. Real- time ... BioMed Central Page 1 of 5 (page number not for citation purposes) Virology Journal Open Access Research Reference gene selection for quantitative real- time PCR analysis in virus infected cells: ... [8-10]. The respective MOI and time of cell culture are shown in table 1 and were chosen to allow maximal infection as determined by immunofluorescence and real- time PCR [8-11]. For kinetic studies, cells...

Ngày tải lên: 20/06/2014, 04:20

Ngày tải lên: 28/06/2014, 10:20

Ngày tải lên: 12/08/2014, 03:20

Ngày tải lên: 12/08/2014, 03:21

... requested to perform all needed processing in real time. In this paper, an embedded system for multichannel multigate (MCMG) US echography is described. The system was conceived and realised as programmable ... CONCLUSION In this paper, an embedded system for real- time digital processing of US signals has been presented. The system is capable of transmitting arbitrary waveforms, simulta- neously demodulating ... configure the MCMG system and for real- time display purposes. At any time, the acquisition can be stopped to download the data gathered in the circular buffer to the PC. 2.1. Arbitrary waveform generator While...

Ngày tải lên: 22/06/2014, 01:20

... digital system is called a causal system if hn0, for n < 0, a digital signal is called a causal signal if x(n)  0 for n < 0. If the sequences x(n) 462 APPENDIX B: INTRODUCTION OF MATLAB FOR ... FOR DSP APPLICATIONS Appendix B Introduction of MATLAB for DSP Applications MATLAB (MATrix LABoratory) is an interactive technical computing environment for scientific and engineering applications. ... using a logarithmic scale for x and a linear scale for y semilogy(x,y) À using a linear scale for x and a logarithmic scale for y loglog(x,y) À using a logarithmic scales for both x and y Generally,...

Ngày tải lên: 25/01/2014, 19:20

... is floating-point data. In addition, the formatted I/O functions also recognize %d for decimal integers, %x for hexadecimals, %c for characters, and %s for character strings. The function fwrite ... The values of sizeof for different data types may vary from system to system. For example, in a workstation, the value of sizeof(int)is 4 (bytes), whereas on fixed-point DSP systems, the value ... of data type specified. For example, float y [5]; 474 APPENDIX C: INTRODUCTION OF C PROGRAMMING FOR DSP APPLICATIONS Appendix C Introduction of C Programming for DSP Applications C has become...

Ngày tải lên: 25/01/2014, 19:20

... and useful to restructure the information contained in LDOCE for use in natural language processing systems. Most applications for natural language processing systems will require vocabularies ... according to the Merriam-Webster codes for subject matter (see Walker & Amsler (1983) for a suggested use for these). The large amount of semi-formalised information concerning the interpretation ... for English Nouns and Verbs', Proceedings of the 19th Annual Meeting of the Association for Computational Linguistics, Stanford, California, pp. 133-138 Bobrow, R.(1978) The RUS System, ...

Ngày tải lên: 22/02/2014, 09:20

... infrastructure and sentiment model to analyze in real- time public sentiment on Twitter toward the 2012 U.S. presidential candidates. Our effort to gauge political sentiment is based on bringing ... 115–120, Jeju, Republic of Korea, 8-14 July 2012. c 2012 Association for Computational Linguistics A System for Real- time Twitter Sentiment Analysis of 2012 U.S. Presidential Election Cycle Hao ... Southern California, Los Angeles, CA {haowang@, dogancan@, kazemzad@, fbar@, shri@sipi}.usc.edu Abstract This paper describes a system for real- time analysis of public sentiment toward...

Ngày tải lên: 16/03/2014, 20:20