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Cooperation is an effective measure to deal with supply chain risk. Based on the analysis of the characteristics of supply chain risk, we built the cooperative game models of supply chain risk distribution. Shapley value formula was used to obtain the risk distribution mechanism, and then we put forward two new methods to distribute supply chain risk. The characteristics of risk distribution mechanism...
The traditional preparation and design of the assemble line have become increasingly unable to meet the need of survival and development for the garment enterprises, under the pressure of the production requirements of varieties of small batch, short cycle and high quality. Setting the balance of working station at an assembly line and the minimum time of bottlenecks as the objective, and the number...
Fujian Desheng Special Iron and Steel Corporation 1150mm hot strip line is a set of fully automatic hot strip line designed and manufactured by our Chinese engineers. The coiler automatic control system of the strip line is based on SIEMENS TDC, the system functions were programmed in Siemens STEP7 and friendly HMI was designed with Siemens WinCC. All of this can realize the coiler fully automatic...
With the fast development of our economy and society, the existing fire attemper commanding Management cannot meet the needs of the fire development. It integrates the ComGIS technology of MapX to the fire attemper commanding Management, combining the data supplement of the fire alarm accepting system. It offers the bran-new resolvent and technology project. Visual Basic and MapX are used to integrate...
In order to achieve ISO standard IEC-18000-2 for RFID air interface and transfer the RF data read from device through computer network, the design of the radio-frequency identification system based on uC/OS-II(a real-time operating system) and data transfer on UDP protocol are proposed. This passage introduced the design of system hardware and emphasized the process of software implementation and...
Based on land use and urban plan maps, we extraced urban land information of Chongqing urban area in periods of 1995,2000.2008. With the help of GIS softwares and statistical analysis model, such indexes as expansion speed, expansion intensity, expansion direction, expansion morphological, and landscape features were used. This paper analyzed the spatio-temporal characteristics of urban land expansion...
Commonly radar altimeters are equipped for cruise missiles which can only detect the land terrain contour, and can't work on the sea. In order to overcome this shortcoming, a scheme of laser altimeter was designed to detect the seabed terrain instead of the radar altimeter. The technology of diode-pumped solid-state laser (DPSSL) was adopted to design laser transmitter, outputting infra-red /blue-green...
As a new theory and method of studying information system, packet sets(P-sets) are set pair combined with internal packet set and outer packet set. Using the outer P-set XF, the concept of F-information, F-information conceal are given. By using the concept, F-information conceal generation and F-information conceal structure are given, F-information conceal theorem and F-information conceal recovery...
This paper presents an efficient method for calculating the Precoding Matrix Indicator (PMI) at a Long Term Evolution (LTE) User Equipment (UE). To solve problem of the high computational complexity in selection algorithm of precoding codebook for TDD LTE. A new selection algorithm based on singular value decomposition of channel matrix is presented. Our method reduces the computational complexity...
This paper presents the implementation of a low-power and implantable neuroprocessor on low-cost nano-FPGA for data reduction and on-the-fly spike sorting in Brain Machine Interface applications. Detailed analysis of efficient utilization of the hardware resources, power consumption and design scalability are provided. The prototype we report here enables simultaneous processing of 32-channel data...
A novel single-phase two-switch pseudo-continuous conduction mode (PCCM) buck-boost PFC converter and its corresponding control strategy are proposed in this paper. The two-switch PCCM buck-boost topology provides an additional degree of control freedom to realize PFC control, which can offer significant performance improvements over single-switch buck-boost converters or two-switch buck-boost converters...
Innovation ecosystem of hi-tech enterprises is a knowledge difference, coexistence and co-evolution innovation system based on component/module. Based on contract and trust, platform enterprises and supporting enterprises establish control coupling, information coupling and relationship coupling in the form of loose coupling. Technology standard becomes the basic coupling route of innovation ecosystem...
Groundwater risk system is a complex open large scale system, mutual associated and interconnected with economy, social and natural system. Meanwhile, groundwater exploitation is influenced by rainfall, population and other uncertain factors, resulting strong fuzziness evaluation indicators. Multi-stage fuzzy optimization theory was applied to evaluate groundwater exploitation in plain region in Xi'an...
The electronics software and hardware design based on CCD47-10 is introduced in this article, including CCD output signal analog amplification, sequential driver, image data acquisition, SDRAM board data buffer and USB bus data transfer. The clear image exposed by LED is taken by the DAQ system in test.
A drastic change will happen on seepage field of earth-rock dam in heavy rains, which may cause seepage damage and instability. So it has important significance to correctly analyze the change rule of seepage field of earth-rock dam in heavy rains, and rationally evaluate the safety of earth-rock dam during rainstorm period. Based on porous media and unsaturated transient seepage theory, this paper...
A hybrid electric vehicle with battery pack and ultracapacitor is modeled because they are practicable to be energy storage units now. A control strategy is proposed to regulate output power of energy storage units. Simulation model for the hybrid electric vehicle is constructed in MATLAB/Simulink environment and simulation is performed. Simulation results show that the proposed control strategy is...
In large-scale power system, low frequency oscillation is becoming a serious threat to the power system security. Online identification is used to monitor the low frequency oscillations and control the system damping. This paper presents a method to identify the characteristic of low frequency oscillations, and describe the online implementation strategy. The simulation result of real power grid validates...
The polarity of GaN surface may have a substantial influence on its electronic structure, So the (0001) and (112̅0) surfaces and their electronic structures are studied based on density-functional theory using the local-density approximation (LDA) as well as the hybrid functional approach were studied by First-principles study. It presents the change of surface atoms position and analyses the surface...
The adsorption of nitrogen on wurtzite ZnO (0001) surface were studied by First-principles. Different adsorption sites and the effect of different coverages have been considered. The clean ZnO (0001) surface and different coverages of Nitrogen adsorbed on wurtzite ZnO(0001) surface show n-type conduction. We found that the H3 adsorption site is energy-favored in each coverage considered, and that...
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