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Chen, Feixiang,Xiang, Ruiyin The Korean Society for Computational and Applied M 2011 Journal of applied mathematics & informatics Vol.29 No.5
We establishes the polynomial convergence of a new class of path-following methods for semidefinite linear complementarity problems (SDLCP) whose search directions belong to the class of directions introduced by Monteiro [9]. Namely, we show that the polynomial iteration-complexity bound of the well known algorithms for linear programming, namely the predictor-corrector algorithm of Mizuno and Ye, carry over to the context of SDLCP.
POLYNOMIAL CONVERGENCE OF PRIMAL-DUAL ALGORITHMS FOR SDLCP BASED ON THE M-Z FAMILY OF DIRECTIONS
Feixiang Chen 한국전산응용수학회 2012 Journal of applied mathematics & informatics Vol.30 No.1
We establish the polynomial convergence of a new class of path-following methods for SDLCP whose search directions belong to the class of directions introduced by Monteiro [3]. We show that the polynomial iteration-complexity bounds of the well known algorithms for linear programming, namely the short-step path-following algorithm of Kojima et al. and Monteiro and Alder, carry over to the context of SDLCP.
SOME NEW INEQUALITIES OF PERTURBED MIDPOINT RULE
Feixiang Chen 한국전산응용수학회 2014 Journal of applied mathematics & informatics Vol.32 No.5
In this paper, a generalized perturbed midpoint rule isestablished. Various error bounds for this generalization are alsoobtained.
Feixiang Chen,Ruiyin Xiang 한국전산응용수학회 2011 Journal of applied mathematics & informatics Vol.29 No.5
We establishes the polynomial convergence of a new class of path-following methods for semidefinite linear complementarity problems (SDLCP) whose search directions belong to the class of directions introduced by Monteiro [9]. Namely, we show that the polynomial iteration-complexity bound of the well known algorithms for linear programming,namely the predictor-corrector algorithm of Mizuno and Ye, carry over to the context of SDLCP.
ON HERMITE-HADAMARD-TYPE INEQUALITIES FOR DIFFERENTIABLE QUASI-CONVEX FUNCTIONS ON THE CO-ORDINATES
Feixiang Chen 한국전산응용수학회 2014 Journal of applied mathematics & informatics Vol.32 No.3
In this paper, a new lemma is established and several newinequalities for differentiable co-ordinated quasi-convexfunctions in two variables which are related to the left-hand sideof Hermite-Hadamard type inequality for co-ordinated quasi-convexfunctions in two variables are obtained.
ON HERMITE-HADAMARD-TYPE INEQUALITIES FOR DIFFERENTIABLE QUASI-CONVEX FUNCTIONS ON THE CO-ORDINATES
Chen, Feixiang The Korean Society for Computational and Applied M 2014 Journal of applied mathematics & informatics Vol.32 No.3
In this paper, a new lemma is established and several new inequalities for differentiable co-ordinated quasi-convex functions in two variables which are related to the left-hand side of Hermite-Hadamard type inequality for co-ordinated quasi-convex functions in two variables are obtained.
POLYNOMIAL CONVERGENCE OF PRIMAL-DUAL ALGORITHMS FOR SDLCP BASED ON THE M-Z FAMILY OF DIRECTIONS
Chen, Feixiang The Korean Society for Computational and Applied M 2012 Journal of applied mathematics & informatics Vol.30 No.1
We establish the polynomial convergence of a new class of path-following methods for SDLCP whose search directions belong to the class of directions introduced by Monteiro [3]. We show that the polynomial iteration-complexity bounds of the well known algorithms for linear programming, namely the short-step path-following algorithm of Kojima et al. and Monteiro and Alder, carry over to the context of SDLCP.
SOME NEW INEQUALITIES OF PERTURBED MIDPOINT RULE
Chen, Feixiang The Korean Society for Computational and Applied M 2014 Journal of applied mathematics & informatics Vol.32 No.5
In this paper, a generalized perturbed midpoint rule is established. Various error bounds for this generalization are also obtained.
Zhijian Pan,Ling Feng,Haocheng Long,Hui Wang,Jiarui Feng,Feixiang Chen 대한약리학회 2015 The Korean Journal of Physiology & Pharmacology Vol.19 No.4
Severe acute pancreatitis (SAP) is normally related to multiorgan dysfunction and local complications. Studies have found that local pancreatic renin-angiotensin system (RAS) was significantly upregulated in drug-induced SAP. The present study aimed to investigate the effects of angiotensin II receptors inhibitor valsartan on dual role of RAS in SAP in a rat model and to elucidate the underlying mechanisms. 3.8% sodium taurocholate (1 ml/kg) was injected to the pancreatic capsule in order for pancreatitis induction. Rats in the sham group were injected with normal saline in identical locations. We also investigated the regulation of experimentally induced SAP on local RAS expression in the pancreas through determination of the activities of serum amylase, lipase and myeloperoxidase, histological and biochemical analysis, radioimmunoassay, fluorescence quantitative PCR and Western blot analysis. The results indicated that valsartan could effectively suppress the local RAS to protect against experimental acute pancreatitis through inhibition of microcirculation disturbances and inflammation. The results suggest that pancreatic RAS plays a critical role in the regulation of pancreatic functions and demonstrates application potential as AT1 receptor antagonists. Moreover, other RAS inhibitors could be a new therapeutic target in acute pancreatitis.
Pan, Zhijian,Feng, Ling,Long, Haocheng,Wang, Hui,Feng, Jiarui,Chen, Feixiang The Korean Society of Pharmacology 2015 The Korean Journal of Physiology & Pharmacology Vol.19 No.4
Severe acute pancreatitis (SAP) is normally related to multiorgan dysfunction and local complications. Studies have found that local pancreatic renin-angiotensin system (RAS) was significantly upregulated in drug-induced SAP. The present study aimed to investigate the effects of angiotensin II receptors inhibitor valsartan on dual role of RAS in SAP in a rat model and to elucidate the underlying mechanisms. 3.8% sodium taurocholate (1 ml/kg) was injected to the pancreatic capsule in order for pancreatitis induction. Rats in the sham group were injected with normal saline in identical locations. We also investigated the regulation of experimentally induced SAP on local RAS expression in the pancreas through determination of the activities of serum amylase, lipase and myeloperoxidase, histological and biochemical analysis, radioimmunoassay, fluorescence quantitative PCR and Western blot analysis. The results indicated that valsartan could effectively suppress the local RAS to protect against experimental acute pancreatitis through inhibition of microcirculation disturbances and inflammation. The results suggest that pancreatic RAS plays a critical role in the regulation of pancreatic functions and demonstrates application potential as AT1 receptor antagonists. Moreover, other RAS inhibitors could be a new therapeutic target in acute pancreatitis.