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This paper presents an analytical model for analyzing the performance of the TDMA-based distributed reservation protocol for wireless multi-hop ad hoc networks. A novel three-way handshake process is presented which considers the hold-off and competition process before the transmission of scheduling messages. An explicit expression of expectation of the average delay of the three-way handshake process...
Thermal aging of insulation paper occurs during transformer operation, with the water produced during aging accelerating the thermal aging process. Insulation paper aging largely determines the operational life of a transformer pressboard; accordingly, research pertaining to insulation paper enhancement is significant with respect to the functional safety of transformers. Within molecular research,...
As an important part of guidance system, radio compass is an integrant equipment of aircraft. The electromagnetic interference of ADF includes two aspects: one interference is from inside of ADF by conducted interference, another is from outside of ADF by radiated interference. Based on these two coupling path, this paper analysis the sensitive mechanism of ADF by the comprehensive electromagnetic...
This study applies Visual basic 6.0 object-oriented programming thoughts to design and develop water resources proof decision support system for construction projects. According to design of users, Human-Computer Interface, sub-system of database and sub-system of model base, it fulfills informationized management to groundwater, surface water, and abstraction and return waters of construction projects...
According to a new horizontal moving mechanism called `Side-Wheel Operating Simultaneously', the moving process of the high-speed & high acceleration stacker for starting and accelerating was simulated and analyzed with multi-body system method. The result showed that the stacker is able to accelerate stably and fast with the designed maximum acceleration and speed.
The structure composition of the Machine Gun Remotely-Operated Weapon Stations servo control system was analyzed, and servo system was simplified and model was assumed. The virtual prototype model was set up by means of ADAMS software package, and servo system model was built based on ADAMS and MATLAB/Simulink; Simulation analysis for tracing precision was conducted in the process of firing, tracing...
The study applies Asp.Net Web Service technology to develop network services and technology such as COM-MapObjects and XML to develop client software. Finally, a water resources management decision support system has been developed on the basis of C/S (Client/Server) and ComGIS. The system implements dynamic management, timely updated information about water resources management, visual query, visual...
In this paper, on the base of comprehensive consideration of game theory and the IEEE 802.11 DCF Distributed Coordination Function, for the characteristics of the wireless sensor network, we make the channel competitive process between nodes molded into incompletely information dynamic game. Then improve DCF by the Nash equilibrium game strategy. The simulation results show that the proposed model...
Rationalization of the Production logistics system can reduce logistics costs and lower product costs. In current, experience and analogy-based approach is still the main way enterprise planning scheme for logistics system. Petri net is an important tool for discrete event system analysis. Papers proposed method which modelling and simulation of plant logistics system based on timed colored Petri...
The traditional error control coding of channel has no long satisfied the requirement of the deep space communication, because of the long delay, great error rate, probability of packet loss, links easily interrupted and so on. The Fountain codes, used in deep space communication, has been introduced and analyzed. The coding and decoding process of LT codes of Fountain codes has been introduced and...
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