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Solutions of the modification heating conduction equations of a kind of laser thermal effect 被引量:2
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作者 周凌云 张灿邦 +1 位作者 Yiying Zhou 吴光敏 《Chinese Optics Letters》 SCIE EI CAS CSCD 2003年第10期597-600,共4页
This paper has solved the Chester modified heat conduction equation of the different relaxation time r value under different temperature conditions, different boundary conditions and the different initial conditions b... This paper has solved the Chester modified heat conduction equation of the different relaxation time r value under different temperature conditions, different boundary conditions and the different initial conditions by different means of methods. These solutions can help to obtain temperature field of laser thermal effects. 展开更多
关键词 of on as it Solutions of the modification heating conduction equations of a kind of laser thermal effect that heat for
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Kidney function outcomes following thermal ablation of small renal masses
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作者 Jay D Raman Syed M Jafri David Qi 《World Journal of Nephrology》 2016年第3期283-287,共5页
The diagnosis of small renal masses(SRMs) continues to increase likely attributable to widespread use of axial cross-sectional imaging. Many of these SRMs present in elderly patients with abnormal baseline renal funct... The diagnosis of small renal masses(SRMs) continues to increase likely attributable to widespread use of axial cross-sectional imaging. Many of these SRMs present in elderly patients with abnormal baseline renal function. Such patients are at risk for further decline following therapeutic intervention. Renal thermal ablation presents one approach for management of SRMs whereby tumors are treated in situ without need for global renal ischemia. These treatment characteristics contribute to favorable renal function outcomes following kidney tumor ablation particularly in patients with an anatomic or functional solitary renal unit. 展开更多
关键词 Radiofrequency ablation CRYOABLATION modification of diet in renal disease equation Kidney function DIALYSIS
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Relative performance of two equations for estimation of glomerular filtration rate in a Chinese population having chronic kidney disease 被引量:20
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作者 Li Jiang-tao Xun Chen +5 位作者 Cui Chun-li Wang Hui-fang Wu Yi-tai Yun Ai-hong Jiang Xiao-feng Ma Jun 《Chinese Medical Journal》 SCIE CAS CSCD 2012年第4期599-603,共5页
Background The new Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation was developed to address the systematic underestimation of glomerular filtration rate (GFR) by the Modification of Diet in Re... Background The new Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation was developed to address the systematic underestimation of glomerular filtration rate (GFR) by the Modification of Diet in Renal Disease (MDRD) Study equation in patients with relatively well-preserved kidney function.Performance of the new equation in the Chinese population is unknown.The goal of the present study was to compare performance of these two equations in Chinese patients with chronic kidney disease (CKD).Methods We enrolled 450 Chinese patients (239 women and 211 men) with CKD in the present study.The renal dynamic imaging method was used to measure the referenced standard GFR (rGFR) for comparison with estimations using the two equations.Their overall performance was assessed with the Bland-Altman method and receiver-operating characteristics (ROC) analysis.Performance of the two equations in lower and higher estimated GFR (eGFR) subgroups was further investigated.Results Both eGFRs correlated well with rGFR (r=0.88,0.81,P〈0.05).In overall performance,the CKD-EPI equation showed less bias,higher precision and improved accuracy,and was better for detecting CKD.In the higher-eGFR subgroup,the CKD-EPI equation corrected the underestimation of GFR by the abbreviated MDRD equation.Conclusions The CKD-EPI equation outperformed the abbreviated MDRD equation not only in overall performance but also in the subgroups studied.For the present,the CKD-EPI equation appears to be the first-choice prediction equation for estimating GFR. 展开更多
关键词 chronic kidney disease glomerular filtration rate abbreviated modification of diet in renal disease equation Chronic Kidney Disease Epidemiology Collaboration equation
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EXACT SOLUTIONS TO KdV-BURGERS EQUATION USING THE ENHANCED MODIFIED SIMPLE EQUATION METHOD
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作者 Dong Xia Desheng Li 《Annals of Differential Equations》 2013年第4期466-473,共8页
It is known that many physical phenomenons can be described by the KdV-Burgers equation. By the enhanced modifed simple equation method, we obtain the exact solutions with variable coefcients involving parameters to K... It is known that many physical phenomenons can be described by the KdV-Burgers equation. By the enhanced modifed simple equation method, we obtain the exact solutions with variable coefcients involving parameters to KdV-Burgers equation, and some new exact solutions are gained. When these parameters are taken special values, the solitary wave solutions are derived from the exact solutions. It is shown that the proposed method provides a more powerful mathematical tool for solving nonlinear evolution equations in mathematical physics. 展开更多
关键词 enhanced modifed simple equation method KdV-Burgers equation exact solutions solitary wave solutions
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