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Stationary demand process is mostly an assumption in the problem of production/inventory control. The objective of this paper is to investigate the performance of non-stationary control policy and stationary control policy under the condition of non-stationary demand and to study the impact of forecasting on the system's performance in a failure-prone manufacturing system. The hedging-point-based...
Large-volume sky surveys have accessed the Universe's vast temporal and spatial expanse via a remarkable set of measurements, and many more are sure to follow. To make new predictions for these cosmological observations and to properly interpret them, large-scale numerical simulation and modeling has become an essential tool. Here, the authors discuss Hardware/Hybrid Accelerated Cosmology Code (HACC),...
An algebraic approach is proposed to calculate stabilities in two decision maker graph models with combining preference. The algebraic approach establishes a hybrid framework for stability analysis by combining strength and uncertainty for Preference. The hybrid system is more general than existing models, which consider preference strength and preference uncertainty separately. Within the hybrid...
SMEs financing problems have been a critical issue in SMEs research field for a long time. The fast development of Internet provides a new finance channel for small and medium sized enterprises. Establishing industry websites to support SMEs financing created a new methodology for firms fund raising. This paper analyzed the financing problems for Chinese SMEs in commercial banks. Based on our study,...
A rotating fan could produce noise of both broadband and discrete frequency. The discrete part typically consists of shaft frequency, blade passage frequency (BPF) and their higher harmonics. The shaft-order noise, which is mainly induced by unbalanced rotating, is often hard to be eliminated. In this paper, the rotating noise caused by geometric asymmetry is discussed and predicted. Analytic point...
Opportunistic relaying is an important relay selection scheme for cooperative communication, it can dynamically select relay depending on instantaneous channel condition, which is a especially suitable for distributed networks. Some cooperative MAC based on opportunistic relaying have been proposed to enhance the system throughput. However, since the throughput is normally related to their energy...
By using game theory and making an equilibrium analysis, the effect of incentive and supervision in overcoming the shortcomings of agent is analyzed. The paper analyzed how to make incentive and supervision mechanism more effective. Taking executive stock options as an example, as a long-term equity incentive way, the paper analyzes how to make the rational principal and agent achieve Nash equilibrium...
Water resources carrying capacity (for short WRCC) evaluation is the basis of regional development planning, environmental protection and water resources sustainable exploitation. The evaluation result plays a decisive role which decides whether we can work out a reasonable program. In view of the uncertainty of evaluation indicators for WRCC, the model of Set Pair analysis based on entropy weight...
The paper presents a cooperative MAC based on opportunistic relaying for ad hoc networks. In the proposed MAC, the cooperative scheme will be activated on the condition that the source contended the channel successful, but the destination receives the inaccurate packets because of the channel noise. Based on opportunistic relaying, the neighbor which has the best channel condition to the destination...
The potential utilization of memristor in future complex system draws worldwide attention. Since it can be used as an ultra-dense integrated component, many researchers make efforts to develop various applications of memristor. Here we present a modeling method based on nano-crossbar structure, with which the memristor behavioral model is constructed. At the same time, we analyze different methods...
This paper presents a theoretical study with experimental validation carried out on a DC-DC SEPIC converter operating in continuous conduction mode (CCM). Two dynamic modeling techniques are adopted and various aspects of the converter's operating modes are analyzed. Simulations of transient and frequency responses are verified with experimental results. A PI control law is used to validate responses...
In this paper, we present a cooperative MAC protocol called automatic relay cooperative MAC (ARC-MAC) for wireless Ad Hoc networks. ARC-MAC develops the 802.11 DCF to five handshakes, which is suitable for cooperative transmission. According to the channel condition, neighbors decide whether it is a relay by itself, and the relay helps the source transmitting packets with a definite probability. An...
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