Li-feng Wei

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OBJECTIVE To study the clinicalpathologic features of intracranial multiple lesions. METHODS The clinical, radiologic and pathologic features of intracranial multiple lesions in 62 cases during the period from 2005 to 2009 in Xuanwu Hospital were retrospectively reviewed. RESULTS There were 32 males and 30 females in 62 cases. The mean age of seize(More)
OBJECTIVE To study the clinicopathologic features of brain tumors occurring in patients with medically intractable epilepsy. METHODS The clinical, radiologic and pathologic features of brain tumors occurring in 35 patients with intractable epilepsy encountered during the period from January, 2005 to April, 2008 in Xuanwu Hospital were retrospectively(More)
Data management is the core module of cloud storage system. Constructed network topology of data center, the data management model of Recursion-based N-regular Polygon Topology (RNPT) was established referring to file systems as Google File System (GFS) and Hadoop Distributed File System (HDFS). The model uses central server mode as well as RNPT network(More)
OBJECTIVE To study the immunohistochemical expression and diagnostic significance of CD34 in brain tumors of patients with refractory epilepsy. METHODS Immunohistochemical study for CD34 was performed on formalin-fixed paraffin-embedded tissue blocks of 54 cases of brain tumors occurring in patients with refractory epilepsy. The tumor types included(More)
OBJECTIVE To evaluate the alteration of subunits composition in NMDA receptor and the alterations of the expression and distribution of NMDA receptors and parvalbumin (PV)-positive neurons in focal cortical dysplasia (FCD) cortices. METHODS Twenty cases of FCD samples (including all four subtypes of FCD) obtained during epilepsy surgery and 4 controls(More)
OBJECTIVE To study the expression of P-glycoprotein, multi-drug resistance associated protein and major vault protein in pathologic brain specimens, and to investigate their roles in the pathogenesis of refractory epilepsy. METHODS Immunohistochemical study was performed in pathology specimens from 18 cases of refractory epilepsy (including 5 cases of(More)
This paper proposes a new detection system for monitoring gas concentration and flow rate. Velocity difference of ultrasonic wave in bi-directional propagation in measured gas is recorded and utilized for computing the online gas concentration and flow rate. Meanwhile, the temperature compensation, return signal processing and error analysis algorithms are(More)
OBJECTIVE To investigate the diagnostic significance of D2-40 and annexin-1 in the ependymal tumors. METHODS To analyses the expression of D2-40, annexin-1, EMA and Ki-67 by immunohistochemistry in 52 cases of ependymal tumors (48 cases of ependymomas, 4 cases of choroid plexus papilloma) from Xuanwu Hospital from 2005 to 2009. Ten cases of corresponding(More)
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