We propose the Dantzig selector based on the l_(1-q)(1<q≤2)minimization model for the sparse signal recovery.First,we discuss some properties of l_(1-q)minimization model and give some useful inequalities.Then,we ...We propose the Dantzig selector based on the l_(1-q)(1<q≤2)minimization model for the sparse signal recovery.First,we discuss some properties of l_(1-q)minimization model and give some useful inequalities.Then,we give a sufficient condition based on the restricted isometry property for the stable recovery of signals.The l_(1-2)minimization model of Yin-Lou-He is extended to the l_(1-q)minimization model.展开更多
文摘目的:探究调Q1064 nm激光联合强脉冲光对黄褐斑患者皮肤颜色评分和皮肤美学效果的影响。方法:选取2021年1月-2023年1月笔者医院收治的86例女性黄褐斑患者为研究对象,采用便签法随机分为观察组和对照组,各43例。对照组采用强脉冲光治疗,观察组采用调Q1064 nm激光联合强脉冲光治疗,比较治疗6个月后两组患者皮肤美学效果[皮肤黑素指数(Melanin index,MI)、红斑指数(Erythema index,EI)]、皮肤颜色分级及不良反应情况,记录治疗前及治疗6个月后两组患者黄褐斑面积严重指数(Melasma area and severity index,MASI)、皮肤屏障功能(皮脂含量、角质层含水量、经表皮水分流失值)。结果:治疗6个月后,观察组患者MASI、MI及EI指数、皮肤颜色评分明显低于对照组(P<0.05);治疗前及治疗6个月后两组患者皮肤屏障功能指标均无统计学意义(P>0.05),且两组治疗期间不良反应发生率比较均无统计学意义(P>0.05)。结论:调Q1064 nm激光联合强脉冲光能够有效改善患者面部黄褐斑情况,提亮患者肤色,美学效果较好,且无明显不良反应。
基金supported by the National Natural Science Foundation of China“Variable exponential function spaces on variable anisotropic Euclidean spaces and their applications”(12261083),“Harmonic analysis on affine symmetric spaces”(12161083).
文摘We propose the Dantzig selector based on the l_(1-q)(1<q≤2)minimization model for the sparse signal recovery.First,we discuss some properties of l_(1-q)minimization model and give some useful inequalities.Then,we give a sufficient condition based on the restricted isometry property for the stable recovery of signals.The l_(1-2)minimization model of Yin-Lou-He is extended to the l_(1-q)minimization model.