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A data acquisition system of three-axis integrative fiber optic gyroscope is studied and implemented in this paper. The hardware platform of the system is composed by 32-bit fixed-point digital signal processor TMS320F2812 and high-precision ADC is used to acquire the signals of optical fiber gyroscope in three orthogonal axises. The designs of the system hardware and corresponding software, including...
A low-cost single-axis temperature controlled turntable for detecting full-scale-temperature performance of FOG was developed. The eccentric shaft rotation mechanism was employed to achieve the turntable a periodic sinusoidal angular velocity swing. The turntable control system was developed using the microcontroller as the core, and the system had the functions of real-time temperature detection,...
The calculation model was carried out by use of commercially software Fluent. The distribution of temperature and NOx consistency field under different crank angle was calculated. The results of the analysis found that there was a greater temperature gradient near the cylinder wall. A larger temperature difference in the oil-beam external and internal and a high-temperature region formatted near the...
In a young field, such as Mining Software Repositories (MSR), there is always a call for benchmarks so that researchers can compare their results against others. Thus in order to explore and discover the breadth of MSR research, the MSR community has banded together behind the MSR Mining Challenge. The mining challenge allows researchers to demonstrate current working techniques against a common set...
In the monitoring system,the existing resource of Ethernet is used to remotely monitor power network parameters. A practical design of embedded Web server for power network monitoring is introduced, which applies high speed MCU (SX52BD) to conveniently link to Ethernet. Adopting Ethernet interface control mode, the remote network monitoring of power network is realized under Windows.
Researchers continue to demonstrate the benefits of Mining Software Repositories (MSR) for supporting software development and research activities. However, as the mining process is time and resource intensive, they often create their own distributed platforms and use various optimizations to speed up and scale up their analysis. These platforms are project-specific, hard to reuse, and offer minimal...
Developers of open source projects are distributed across the world. They rely on email, mailing lists, instant messaging, IRC channels and more recently IRC meetings to communicate. Most of the studies thus far focus on the use of mailing lists by OSS developers, however, an increasing number of open source projects are using IRC meetings to hold developer meetings. In this paper, we mine the #gtk-devel...
Many software applications must provide services to hundreds or thousands of users concurrently. These applications must be load tested to ensure that they can function correctly under high load. Problems in load testing are due to problems in the load environment, the load generators, and the application under test. It is important to identify and address these problems to ensure that load testing...
Up-to-date comments are critical for the successful evolution of a software application. When modifying a function, developers may update the comment associated with the function or may not update it. For example, comments associated with a complex function are likely to be updated more often when the function is modified to prevent the code and the comments from drifting apart. Nevertheless, the...
Monitoring the execution of large enterprise systems is needed to ensure that such complex systems are performing as expected. However, common techniques for monitoring, such as code instrumentation and profiling have significant performance overhead, and require access to the source code and to system experts. In this paper, we propose using execution logs to monitor the execution of applications...
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