According to the harmful vibration existed in the engineeringtechnology fields especially under the fault condition, a wide bandwidth vibration fault diagnosis system is introduced, which can obtain the acceleration,...
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According to the harmful vibration existed in the engineeringtechnology fields especially under the fault condition, a wide bandwidth vibration fault diagnosis system is introduced, which can obtain the acceleration, rate and displacement simultaneously. This instrument composes of dual-processor *** using its DSP core the instrument is able to analyze the vibration signals under operation, transfer the result to ARM core, then display the result by LCD, besides the addition of extensible fault diagnosis expert system. Through the simulation and experimental detection, to verify the validity of the methods detecting the bandwidth vibration signal from 20Hz to 10KHz.
The paper introduces a method to realize FlexRay network communication based on OSEK/VDX standard. In the paper, it firstly introduces the OSEK/VDX standard and FlexRay bus, then makes some improvement to achieve OSEK...
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The paper introduces a method to realize FlexRay network communication based on OSEK/VDX standard. In the paper, it firstly introduces the OSEK/VDX standard and FlexRay bus, then makes some improvement to achieve OSEK/VDX communication system's network object according to the features of FlexRay communication. Lastly it realizes FlexRay network communication by using the events-trigger OSEK/VDX Operating System.
In spectral extinction particle sizing technique, the particle size distribution (PSD) can be retrieved based on the measurement of extinction values at multiple wavelengths. If the measurement is performed at wavelen...
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The paper introduces a method to realize FlexRay network communication based on OSEK/VDX standard. In the paper, it firstly introduces the OSEK/VDX standard and FlexRay bus, then makes some improvement to achieve OSEK...
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In this paper, a wideband microstrip antenna loaded with split ring resonators (SRRs) has been designed. The proposed antenna consists of three parts: the square patch, the ground and the suspended substrate loaded wi...
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In this paper, a wideband microstrip antenna loaded with split ring resonators (SRRs) has been designed. The proposed antenna consists of three parts: the square patch, the ground and the suspended substrate loaded with SRRs. The bandwidth of the antenna is enlarged by capacitively coupled feed and its resonant frequency can be lowered due to the influence of the loaded SRRs. Simulation results show that the antenna has a 700-MHz bandwidth from 1.70 GHz to 2.40 GHz and the gain is higher than 5.5 dB within the bandwidth. By loading arrays of SRRs, a size reduction of 5.7% is achieved with good radiation features.
On the basis of the general technology, high-tech, vast varieties and small-lot of the solar energy photovoltaic system, this paper comes up with the research conception of optical, mechanical and electronic integrati...
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On the basis of the general technology, high-tech, vast varieties and small-lot of the solar energy photovoltaic system, this paper comes up with the research conception of optical, mechanical and electronic integration and builds the optical, mechanical and electronic integration systemIt also brings forward the design methodology and the integrated mechanism of the instant systematic integration based on the flexible interconnection, which leads to the building of the basic experimental and research environment of the automatic integrated designThe application of this new technology is based on the research of the highly-efficient Concentrator Photovoltaic SystemIt noticeably improves the technical level as well as the research efficiency.
In order to conduct in-depth study of flexible R&D platform for solar concentration photovoltaic system, the author proposes the design method for flexible R&D platform for solar concentration photovoltaic ...
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In order to conduct in-depth study of flexible R&D platform for solar concentration photovoltaic system, the author proposes the design method for flexible R&D platform for solar concentration photovoltaic system based on ontology and knowledge fusion. This paper explains the integration concept of flexible R&D platform, explores the way of acquiring and expressing multi-source knowledge for solar concentration photovoltaic system design, and further studies the key technologies and realization way for solar concentration photovoltaic system design based on multi-source knowledge fusion.
In distributed systems, the server placement problem in which a new server has to compete with existing servers for user requests is important in planning of constructing new business service sites. In addition to min...
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In this paper, a high-gain and broadband microstrip patch antenna by using 2D metamaterial unit and directors for GSM, WCDMA and WiMAX operations is presented. The proposed antenna has conceptual configuration of the ...
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In this paper, a high-gain and broadband microstrip patch antenna by using 2D metamaterial unit and directors for GSM, WCDMA and WiMAX operations is presented. The proposed antenna has conceptual configuration of the Yagi antenna array, which is realized by the complementary metamaterial units etched on the patch. Furthermore, some directors are applied to enhance the gain of the antenna. The simulation results show that the operation frequency is from 1.57 GHz to 2.54 GHz, and the radiation pattern stay the same in the entire band. The peak gain of the antenna can reach 8.27 dB.
Background: Both the act of competing, which can create a kind of mental stress, and participation in motor sports, which induces physical stress from intense g-forces, are known to increase heart rate dramatically. H...
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