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With the promotion of electric power reform in China, distributed energy participating in power market transaction becomes possible. However, due to the characteristics of transaction decentralization, multiple energy synergies, information symmetry and the large quantity, the transaction cost and the risk of information leak increase significantly, which inhibits the enthusiasm of distributed energy...
Clinical studies have established that adjuvant mild hyperthermia significantly increases the efficacy of radio-and chemotherapy across many tumor sites. Radiofrequency hyperthermia treatment quality is usually monitored with invasive temperature sensors, which provides limited data sampling and causes infection risks. To mitigate these issues, magnetic resonance (MR) measurements can be exploited...
To improve the energy efficiency of nodes in Wireless sensor network, A multi-hop clustering routing algorithm is presented which is based on distributed wireless sensor network, which can improve itself in the process of use according to a kind of protocol called low energy adaptive clustering hierarchy ( Low Energy Adaptive Clustering Hierarchy, LEACH).
In order to effectively link up the suppliers to the main production enterprises, cooperativity and the model is analyzed based on mixing production materials ordinal supply system, set up the model of unloading forklift and unloading space allocation and simulation. That solves the entrance congestion caused by Small-volume, multi-batch ordinal supplying goods and effectively coordinate material...
Access Control is very important in design of MIS and is safe assurance of system. The Role Based Access Control model is presented in this article. On this basis we present a method of information system authority control based on RBAC in web environment.
RBAC is the model of "strategies neutral". It has not given a specific definition on permission. The essence of permission is open and it can be defined according to different applications and security strategies. By analyzing the features of management information system based on B/S, the permission in web applications has been tessellated and the concept of "component" has been...
In the light of that the defense against DDoS attacks is difficult, an active DDoS defense model based on packet marking is proposed in this paper. The model is composed of the subsystem of the tracking of the attacks and the subsystem of filtering of the attack flows. The function of the former is to reconstruct the attack paths using the information from the marked packets while the function of...
A novel authenticated packet marking scheme for IP trace-back is proposed in this paper, it is based on the probabilistic packet marking scheme developed by Savage, et a. The new scheme adopts a new dynamic probability value sequence to mark packets and uses the IP capital checksum to check the marked information. Compared with PPM scheme, The new scheme doesn't need the topology and it improves a...
Neutrophils are a type of white blood cell in the body's immune system. Neutrophils move via actin polymerization and actin myosin contraction. A suitable substrate must be determined for neutrophils to be placed upon during motility and chemotaxis experiments. Differentiated HL-60 or neutrophil-like cells were used to determine the appropriate substrate. Substrates such as fibronectin, vitronectin...
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