Li Wei

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BACKGROUND The management of metastatic brain tumors is an important issue in patients with malignant tumors or cancer. The authors summarize the results of patients with brain metastases treated at the Xi-Jing Hospital during a 10-year period, in order to assess the best modality of treatment for patients with brain metastases. METHODS Between 1990 and(More)
With the development and wide application of WSN (Wireless Sensor Network), the information security becomes a serious problem, especially when the WSN applied in military field. Whereas the general WSN routing protocols focus on the transmission efficiency, reliability and energy-efficiency, not on the security. This paper integrates the international(More)
Cancer cells use glucose and glutamine as the major sources of energy and precursor intermediates, and enhanced glycolysis and glutamimolysis are the major hallmarks of metabolic reprogramming in cancer. Oncogene activation and tumor suppressor gene inactivation alter multiple intracellular signaling pathways that affect glycolysis and glutaminolysis. N-Myc(More)
The combination of the Wireless Sensor Network (WSN) and grid computing in Wireless Sensor Grid (WSG) architecture enables the strengths and characteristics of wireless sensor network and grid computing to be realized on a single integrated platform. This paper analyzes the necessity and key problems of combining the WSN and grid computing and shows a(More)
Considering that the neural network increases rapidly in complexity and is greatly extended in training time due to the gradually increasing input vectors, a fusion algorithm modified by rough set is proposed to preprocess the inputs before neural network. Firstly, the input sample space is reduced to obtain the new decision table according to attribute(More)
Frequency domain equalization (FDE) is a very efficient way to resist frequency selective fading in single-carrier communications, but its performance will be greatly degraded when suffering serious Doppler impact due to time varying channel state. Based on the single-carrier system with FDE (SC-FDE), a segmentation FDE scheme is proposed to resist high(More)