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This paper provides an asymmetric virtual local area network (VLAN) management protocol used in switches to make an end station available to others in different VLANs without routers in the case in which end stations are VLAN-unaw...
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This paper provides an asymmetric virtual local area network (VLAN) management protocol used in switches to make an end station available to others in different VLANs without routers in the case in which end stations are VLAN-unaware. The protocol is a supplement to the IEEE 802.1Q standard. The paper first introduces an asymmetric VLAN management protocol for a single switch situation and gives the protocol properties. It then extends the protocol to be used where there are multiple connected switches. The asymmetric VLAN management protocol is implemented and tested in our broadband access system.
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摘要 :
This paper provides an asymmetric virtual local area network (VLAN) management protocol used in switches to make an end station available to others in different VLANs without routers in the case in which end stations are VLAN-unaw...
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This paper provides an asymmetric virtual local area network (VLAN) management protocol used in switches to make an end station available to others in different VLANs without routers in the case in which end stations are VLAN-unaware. The protocol is a supplement to the IEEE 802.1Q standard. The paper first introduces an asymmetric VLAN management protocol for a single switch situation and gives the protocol properties. It then extends the protocol to be used where there are multiple connected switches. The asymmetric VLAN management protocol is implemented and tested in our broadband access system.
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Non-thermal plasma (NTP) technology is considered to be one of the most promising technologies in diesel exhaust after-treatment, which has the advantages of simple operation, high conversion efficiency and no secondary pollution....
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Non-thermal plasma (NTP) technology is considered to be one of the most promising technologies in diesel exhaust after-treatment, which has the advantages of simple operation, high conversion efficiency and no secondary pollution. In this paper, a NTP reactor was designed based upon the dielectric barrier discharge theory. The bench test was carried out and the reduction of carbon particles from diesel engine exhaust with NTP technology had been investigated. The results showed that there was a great decrease in carbon particles after NTP treatment and the maximum reduction was around 58%. Furthermore, the morphology and the components change of carbon particles were analyzed by using the scanning electron microscopy (SEM) and Energy dispersive X-Ray micro-analyzer (EDS). It can be detected that the diameter of the carbon particles became smaller and the amount of C atoms was significantly reduced under the treatment of NTP technology.
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According to the application characteristics of missile carrier's scenematching conductor system, such as the high moving speed of the missile carrier, high maneuverability and large PRF repetition frequency, combined with the SAR...
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According to the application characteristics of missile carrier's scenematching conductor system, such as the high moving speed of the missile carrier, high maneuverability and large PRF repetition frequency, combined with the SAR echo model, the key operations of the SAR target echo simulation are analyzed on the basis of studying the SAR target echo simulation algorithm. By using high-performance computing technology based on FPGA computing array, a method for real-time simulation of SAR echo based on range time domain pulse coherence is proposed. According to the key parameters such as carrier information, angle information, irradiation range, and occlusion judgment information of the missile-borne SAR radar platform, real-time simulation for large-area SAR target echo signals is realized, which can meet the application requirements such as large amount of calculation and high accuracy and real-time in the context of missile-borne SAR scene matching guidance.
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According to the application characteristics of missile carrier's scenematching conductor system, such as the high moving speed of the missile carrier, high maneuverability and large PRF repetition frequency, combined with the SAR...
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According to the application characteristics of missile carrier's scenematching conductor system, such as the high moving speed of the missile carrier, high maneuverability and large PRF repetition frequency, combined with the SAR echo model, the key operations of the SAR target echo simulation are analyzed on the basis of studying the SAR target echo simulation algorithm. By using high-performance computing technology based on FPGA computing array, a method for real-time simulation of SAR echo based on range time domain pulse coherence is proposed. According to the key parameters such as carrier information, angle information, irradiation range, and occlusion judgment information of the missile-borne SAR radar platform, real-time simulation for large-area SAR target echo signals is realized, which can meet the application requirements such as large amount of calculation and high accuracy and real-time in the context of missile-borne SAR scene matching guidance.
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Detailed description of the structure, operation and performance of single crystal silicon infrared liquid crystal light valve (IR-LCLV) is given. Experiment results obtained from an IR-LCLV utilizing Epson projector as the visibl...
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Detailed description of the structure, operation and performance of single crystal silicon infrared liquid crystal light valve (IR-LCLV) is given. Experiment results obtained from an IR-LCLV utilizing Epson projector as the visible image input source and an extended IR source (blackbody) as the projection beam is presented. Spatial resolution is 20 lines/mm and dynamic temperature range is 80 degree(s)C above ambient.
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In order to improve the public service attributes and the utilization efficiency of CAV, the paper proposes a customizable and cruising autonomous bus (CCAB) route planning model. This model makes CCAB as customizable and fast as ...
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In order to improve the public service attributes and the utilization efficiency of CAV, the paper proposes a customizable and cruising autonomous bus (CCAB) route planning model. This model makes CCAB as customizable and fast as a taxi, and at the same time as a bus to meet multiple demands. Considering that CCAB needs to meet personalized customized riding demand, the paper combines allocation strategy of customized demands to establish a real-time optimization method for customizable and cruising routes based on the elliptical feasible area. This enable CCAB to have the ability of autonomous cruising and autonomous planning of customized routes. In CAV environment, the driver will be replaced by on-board computer of CCAB, the driver’s empirical route selection method will be replaced by the route planning model proposed in this paper. CCAB use historical ride data from each stop to predict future demand. Based on prediction results, the potential passenger rate of route is calculated, and the route is optimized at the same time, so as to determine the final cruising route of the unloaded/loaded bus. By route optimizing, the load rate of CCAB can be improved and the empty mileage can be reduced. The stability of route planning model proposed in this paper is verified by simulation. Meanwhile, sensitivity analysis is carried out by changing demand density and CCAB number in simulation. The conclusion is drawn that determining the optimal number of CCAB corresponding to different demand densities is of great significance for improving efficiency, reducing empty CCAB driving time and passenger waiting time.
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This paper describes the 300MW pumped storage governor system which is applied in Xiangshuijian power station and is featured with State-owned independent intellectual property rights from three aspects. Firstly, this paper descri...
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This paper describes the 300MW pumped storage governor system which is applied in Xiangshuijian power station and is featured with State-owned independent intellectual property rights from three aspects. Firstly, this paper describes the principle and configuration of the pumped storage governor system; secondly, it describes some features for the application of the system in Xiangshuijian power station and advanced control strategies thereof; and thirdly, it describes the implementation of some special features of application of the system in Xiangshuijian power station. Through this article, we hope for further exploration of the system in the industry and hope the application of the system can be further popularized in the design and implementation of localization governor system of large pumped storage power station in the future.
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