比较Phaco或者ECCE联合小梁切除术治疗白内障合并青光眼(Cataract with glaucoma,以下简称“CWG”)的效果。方法:自2018.03-2019.03期间随机选取CWG病例共计70例,共分为2组,观察组治疗方式为Phaco+小梁切除术,对照组治疗方式为ECCE+小...比较Phaco或者ECCE联合小梁切除术治疗白内障合并青光眼(Cataract with glaucoma,以下简称“CWG”)的效果。方法:自2018.03-2019.03期间随机选取CWG病例共计70例,共分为2组,观察组治疗方式为Phaco+小梁切除术,对照组治疗方式为ECCE+小梁切除术,n=35。 对比两组疗效。结果:观察组经治疗后的眼压以及散光度、术后并发症率均小于对照组,(p<0.05)。结论:CWG疾病临床治疗方案选择Phaco+小梁切除术不仅能够使患者的眼压以及散光问题得到积极解决,且在术后相关并发症的可能性更小,在安全与疗效等方面更有优势。展开更多
In order to improve the seismic performance, deformation ability and ultimate load-carrying capacity of columns with rectangular cross section, engineered cementitious composite(ECC) is introduced to partially substit...In order to improve the seismic performance, deformation ability and ultimate load-carrying capacity of columns with rectangular cross section, engineered cementitious composite(ECC) is introduced to partially substitute concrete in the edge zone of reinforced concrete columns and form reinforced ECC/concrete composite columns.Firstly, based on the assumption of plane remaining plane and the simplified constitutive models, the calculation method of the load-carrying capacity of reinforced ECC/concrete columns is proposed. The stress and strain distributions and crack propagation of the composite columns in different states of eccentric compressive loading are analyzed. Then, nonlinear finite element analysis is conducted to study the mechanical performance of reinforced ECC/concrete composite columns with rectangular cross section. It is found that the simulation results are in good agreement with the theoretical results, indicating that the proposed method for calculating the load-carrying capacity of concrete/ECC composite columns is valid. Finally, based on the proposed method, the effects of ECC thickness, compressive strength of concrete and longitudinal reinforcement ratio on the mechanical performance of reinforced ECC/ concrete composite columns are analyzed. Calculation results indicate that increasing the thickness of ECC layer or longitudinal reinforcement ratio can effectively increase the ultimate load-carrying capacity of the composite column with both small and large eccentricity, but increasing the strength of concrete can only increase the ultimate loadcarrying capacity of the composite column with small eccentricity.展开更多
文摘比较Phaco或者ECCE联合小梁切除术治疗白内障合并青光眼(Cataract with glaucoma,以下简称“CWG”)的效果。方法:自2018.03-2019.03期间随机选取CWG病例共计70例,共分为2组,观察组治疗方式为Phaco+小梁切除术,对照组治疗方式为ECCE+小梁切除术,n=35。 对比两组疗效。结果:观察组经治疗后的眼压以及散光度、术后并发症率均小于对照组,(p<0.05)。结论:CWG疾病临床治疗方案选择Phaco+小梁切除术不仅能够使患者的眼压以及散光问题得到积极解决,且在术后相关并发症的可能性更小,在安全与疗效等方面更有优势。
基金Supported by the National Natural Science Foundation of China(No.51278118)the Program for Special Talent in Six Fields of Jiangsu Province(No.2011JZ010)+1 种基金the Natural Science Foundation of Jiangsu Province(No.BK2012756)the Undergraduate Innovation Program(No.T13052007)
文摘In order to improve the seismic performance, deformation ability and ultimate load-carrying capacity of columns with rectangular cross section, engineered cementitious composite(ECC) is introduced to partially substitute concrete in the edge zone of reinforced concrete columns and form reinforced ECC/concrete composite columns.Firstly, based on the assumption of plane remaining plane and the simplified constitutive models, the calculation method of the load-carrying capacity of reinforced ECC/concrete columns is proposed. The stress and strain distributions and crack propagation of the composite columns in different states of eccentric compressive loading are analyzed. Then, nonlinear finite element analysis is conducted to study the mechanical performance of reinforced ECC/concrete composite columns with rectangular cross section. It is found that the simulation results are in good agreement with the theoretical results, indicating that the proposed method for calculating the load-carrying capacity of concrete/ECC composite columns is valid. Finally, based on the proposed method, the effects of ECC thickness, compressive strength of concrete and longitudinal reinforcement ratio on the mechanical performance of reinforced ECC/ concrete composite columns are analyzed. Calculation results indicate that increasing the thickness of ECC layer or longitudinal reinforcement ratio can effectively increase the ultimate load-carrying capacity of the composite column with both small and large eccentricity, but increasing the strength of concrete can only increase the ultimate loadcarrying capacity of the composite column with small eccentricity.