Designing a large-scale on-line real-time system

AbstractNeutron radiography was used to study the density of tobacco rods. Density variations in individual rods caused by local packing variations and the presence of more dense materials in the blend were easily discernible in both static and real-time radiographs. A density resolution of 0.35 mm was observed in the real-time system. By averaging center line density scans for several rods with the aid of an image processor, large scale variations in the density such as the increased packing at the rod ends could be measured. Comparison of the results from neutron radiography with those obtained by cutting rods into sections and weighing the sections showed good agreement. Both methods indicated the lighting end was approximately 9 % more dense than the middle of the rod. This work has demonstrated that neutron radiography can be used to provide accurate density information about cigarette rods with considerably greater resolution and in much less time than sectioning and the commercial beta ray gauging technique.

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A New On-Line Scheduling Algorithm for Distributed Real-Time System

Advanced Distributed Systems - Lecture Notes in Computer Science ◽

10.1007/978-3-540-25958-9_22 ◽

2004 ◽

pp. 241-251 ◽

Cited By ~ 2

Author(s):

Mourad Hakem ◽

Franck Butelle

Keyword(s):

Real Time ◽

Scheduling Algorithm ◽

Time System ◽

Real Time System ◽

On Line

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Real-time detection and location of local seismic events in central California

Bulletin of the Seismological Society of America ◽

10.1785/bssa0670020433 ◽

1977 ◽

Vol 67 (2) ◽

pp. 433-452

Author(s):

Samuel W. Stewart

Keyword(s):

Real Time ◽

Vertical Component ◽

Seismic Events ◽

Full Time ◽

Time System ◽

Real Time System ◽

Central California ◽

The Real ◽

Short Period ◽

On Line

Abstract A computer-based system dedicated full time to automatic detection and location of local seismic events in central California has been developed. The system monitors 108 short-period vertical-component stations from the U.S. Geological Survey central California and Oroville seismic networks. Locations and magnitudes, when determined, are printed out along with first arrival times, within 2 to 5 min after an event occurs. Wave onsets must be clear and impulsive for best results. For this reason, regional events and teleseisms are usually rejected. The best results have been obtained for the relatively dense, 16-station Oroville network. For the month of October 1975, 107 (91 per cent) of the 118 events timed by hand were also timed and located by the real-time system. An additional eight events (7 per cent) were detected in real-time but were not successfully located. Of the 107 events for which both on-line and hand-timed locations are available, 92 per cent of the on-line locations are within 2 km of the epicenters determined by hand-timing. During October 1975 the real-time system monitored 91 of the 150 stations of the central California network. Of the 260 events located by hand-timing, 225 (86 per cent) were detected by the real-time system. Magnitudes of detected events range from 0.8 to 2.9. Approximately 95 per cent of the events of magnitude 1¼ and greater detected and located by hand-timing methods were also detected by the real-time system. Differences between hypocentral locations based on hand-timed and computer-timed arrivals may vary from 0.1 to 5 min of latitude or longitude.

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MOCA: A multiprocessor on-line competitive algorithm for real-time system scheduling

1993 Proceedings Real-Time Systems Symposium ◽

10.1109/real.1993.393503 ◽

2002 ◽

Cited By ~ 2

Author(s):

G. Koren ◽

D. Shasha ◽

S.-C. Huang

Keyword(s):

Real Time ◽

Time System ◽

Real Time System ◽

Competitive Algorithm ◽

On Line

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Real-Time System for Sending Data from Three Clients to One Server with MATLAB

ACMIT Proceedings ◽

10.33555/acmit.v2i1.7 ◽

2015 ◽

Vol 2 (1) ◽

pp. 35-41

Author(s):

Rivan Risdaryanto ◽

Houtman P. Siregar ◽

Dedy Loebis

Keyword(s):

Information System ◽

Real Time ◽

Time System ◽

Real Time System ◽

The Real ◽

Performance Time ◽

Data Process ◽

Effectiveness And Efficiency

The real-time system is now used on many fields, such as telecommunication, military, information system, evenmedical to get information quickly, on time and accurate. Needless to say, a real-time system will always considerthe performance time. In our application, we define the time target/deadline, so that the system should execute thewhole tasks under predefined deadline. However, if the system failed to finish the tasks, it will lead to fatal failure.In other words, if the system cannot be executed on time, it will affect the subsequent tasks. In this paper, wepropose a real-time system for sending data to find effectiveness and efficiency. Sending data process will beconstructed in MATLAB and sending data process has a time target as when data will send.

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