Chengming Yang

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Standard support vector machine (SVM) serves as a powerful method for faults diagnosis and classification for last two decades. However, this standard method and its recent versions still encounter many problems for classification and diagnosis. To cope with these problems, a method (SVM-RFE) combines SVM, recursive feature elimination (RFE) and principal(More)
Previous studies have demonstrated that individual anti-hypertension medications have different effects when administered in the morning vs. the evening. However, the impact of administration timing on fixed combinations of anti-hypertensive medications on blood pressure control is still unknown. In the present study, we examined the administration(More)
To investigate the effects of the angiotensin-converting enzyme (ACE) inhibitor, peridopril, and the beta-adrenergic blocker, metoprolol, on plasma neuropeptide Y (NPY), and NPY receptors in aortic vascular smooth muscle cells (VSMCs) from normotensive Wistar-Kyoto (WKY) rats and spontaneously hypertensive rats (SHR), both strains of rats were fed with(More)
Feature selection is a key step in classification of high-dimensional data, especially gene expression microarray data with many thousands of features. As a wrapper method, Support Vector Machine-Recursive Feature Elimination (SVM-RFE) is one of the most powerful feature selection techniques. Although SVM-RFE can remove irrelevant features effectively, it(More)
Coronary artery aneurysms and fistulas are very rare congenital anomalies. They occur in 0.2%-0.4% of all congenital heart diseases. In this article, we report a case of a 39-year-old girl with a left coronary artery aneurysm and fistula draining into the right atrium. An intervention is successfully achieved by transcatheter occluder embolization using a(More)
Document clustering grows to be a very famous technique with the popularity of the web which also indicates that quick and best clustering technique acts as an important issue. Document clustering is about identifying semantically interconnected groups from formless collection of text documents. Feature Selection is significant for clustering process(More)
OBJECTIVE Atherosclerosis is a systemic disease, in which coronary and peripheral angiographies are required to be done at the same time in a large number of patients. To shorten the procedure time, and reduce complications, we tested the feasibility and the safety of using a single 5F multipurpose catheter, via transradial approach, for coronary, cerebral(More)
OBJECTIVE Vascular smooth muscle cell (VSMC) proliferation is central to the development of vascular diseases, including hypertension, which is regulated by numerous hormones and humoral factors. Our previous study showed that the stimulatory effect of norepinephrine on VSMC proliferation is inhibited by D1-like receptors and the D3 dopamine receptor, a(More)
BACKGROUND Ion transport in the renal proximal tubule (RPT) is regulated by numerous hormones and humoral factors, including insulin and dopamine. Previous studies show an interaction between insulin and the D(1) receptor. Because both D(1) and D(5) receptors belong to the D(1)-like receptor subfamily, it is possible that an interaction between insulin and(More)