目的探讨面部脂溢性皮炎患者皮肤生理参数的特征。方法 1分别对30例健康人和60例面部脂溢性皮炎患者行乳酸刺痛试验。2分别对30例健康人及60例面部脂溢性皮炎患者面部的油脂含量、弹性、表皮含水量及经表皮失水率(transepidermal water ...目的探讨面部脂溢性皮炎患者皮肤生理参数的特征。方法 1分别对30例健康人和60例面部脂溢性皮炎患者行乳酸刺痛试验。2分别对30例健康人及60例面部脂溢性皮炎患者面部的油脂含量、弹性、表皮含水量及经表皮失水率(transepidermal water loss,TEWL)进行测量,使用SPSS 19.0统计学软件进行分析。结果面部脂溢性皮炎患者与健康人比较,油脂含量及经表皮失水率(TEWL)明显高于健康对照组,弹性及表皮含水量明显低于健康对照组,两者有显著性差异。结论面部脂溢性皮炎患者存在皮肤屏障功能障碍。表现为TEWL、油脂含量增高,皮肤弹性、表皮含水量降低。展开更多
The experimental study of air-entrained concrete specimens subjected to different cycles of freeze-thaw was completed. The dynamic modulus of elasticity, weight loss, the cubic compressive strength, compressive streng...The experimental study of air-entrained concrete specimens subjected to different cycles of freeze-thaw was completed. The dynamic modulus of elasticity, weight loss, the cubic compressive strength, compressive strength, tensile strength and cleavage strength of air-entrained concrete were measured after 0, 100, 200, 300, 400 cycles of freeze-thaw. The experimental results showed that the dynamic modulus of elasticity and strength decreased as the freeze-thaw was repeated. The influences of freeze-thaw cycles on the mechanical properties, the dynamic modulus of elasticity and weight loss were analyzed according to the experimental results. It can serve as a reference for the maintenance, design and the life prediction of dams, hydraulic structures, offshore structures, concrete roads and bridges in northern cold regions.展开更多
文摘目的探讨面部脂溢性皮炎患者皮肤生理参数的特征。方法 1分别对30例健康人和60例面部脂溢性皮炎患者行乳酸刺痛试验。2分别对30例健康人及60例面部脂溢性皮炎患者面部的油脂含量、弹性、表皮含水量及经表皮失水率(transepidermal water loss,TEWL)进行测量,使用SPSS 19.0统计学软件进行分析。结果面部脂溢性皮炎患者与健康人比较,油脂含量及经表皮失水率(TEWL)明显高于健康对照组,弹性及表皮含水量明显低于健康对照组,两者有显著性差异。结论面部脂溢性皮炎患者存在皮肤屏障功能障碍。表现为TEWL、油脂含量增高,皮肤弹性、表皮含水量降低。
基金supported by part of the Key Project of the China Postdoctoral Science Foundation(Nos.20080430183 and 200801386)the Promotional Foundation for Excellent Middle-aged or Young Scientists of Shandong Province(No.2008BS08001)National Basic Research Program(No.2007CB714202)
文摘The experimental study of air-entrained concrete specimens subjected to different cycles of freeze-thaw was completed. The dynamic modulus of elasticity, weight loss, the cubic compressive strength, compressive strength, tensile strength and cleavage strength of air-entrained concrete were measured after 0, 100, 200, 300, 400 cycles of freeze-thaw. The experimental results showed that the dynamic modulus of elasticity and strength decreased as the freeze-thaw was repeated. The influences of freeze-thaw cycles on the mechanical properties, the dynamic modulus of elasticity and weight loss were analyzed according to the experimental results. It can serve as a reference for the maintenance, design and the life prediction of dams, hydraulic structures, offshore structures, concrete roads and bridges in northern cold regions.
