A 45-year-old man presented with a rapidly enlarging keratotic lesion of the distal subungual right middle finger. An X-ray of the digit revealed a well-d efined cup-shaped lytic lesion of the phalynx underlying the s...A 45-year-old man presented with a rapidly enlarging keratotic lesion of the distal subungual right middle finger. An X-ray of the digit revealed a well-d efined cup-shaped lytic lesion of the phalynx underlying the subungual nodule. The lesion resolved spontaneously with reossification of the underlying bony def ect. The clinical history and X-ray is consistent with a diagnosis of spontaneo usly resolving subungual keratoacanthoma.展开更多
This study tries to reveal the carbonation behavior when recycled coarse aggregates(RCAs) are used to mix new concrete.Six series of tests including 22 groups of recycled aggregate concrete(RAC) specimens were carried...This study tries to reveal the carbonation behavior when recycled coarse aggregates(RCAs) are used to mix new concrete.Six series of tests including 22 groups of recycled aggregate concrete(RAC) specimens were carried out,in which the effects of the water/binder(w/b) ratios,the binder content,the types of mineral admixture,the quality of RCAs,the RCAs replacement and the loading levels on the carbonation behavior of RAC were evaluated,respectively.The results showed that the carbonation behavior of RAC was not only influenced by the quality of new mortar but also by the properties of RCAs.The admixture of mineral admixture influenced the carbonation,and the loading stress level might have a significant impact on the evolution of the carbonation.展开更多
文摘A 45-year-old man presented with a rapidly enlarging keratotic lesion of the distal subungual right middle finger. An X-ray of the digit revealed a well-d efined cup-shaped lytic lesion of the phalynx underlying the subungual nodule. The lesion resolved spontaneously with reossification of the underlying bony def ect. The clinical history and X-ray is consistent with a diagnosis of spontaneo usly resolving subungual keratoacanthoma.
基金supported by the National Natural Science Foundation ofChina (Grant No. 51178340)the Shanghai Science and Technology Committee (Grant No. 10231202000)the New Century Excellent Talentsin China Ministry of Education Project (Grant No. NCET-06-0383)
文摘This study tries to reveal the carbonation behavior when recycled coarse aggregates(RCAs) are used to mix new concrete.Six series of tests including 22 groups of recycled aggregate concrete(RAC) specimens were carried out,in which the effects of the water/binder(w/b) ratios,the binder content,the types of mineral admixture,the quality of RCAs,the RCAs replacement and the loading levels on the carbonation behavior of RAC were evaluated,respectively.The results showed that the carbonation behavior of RAC was not only influenced by the quality of new mortar but also by the properties of RCAs.The admixture of mineral admixture influenced the carbonation,and the loading stress level might have a significant impact on the evolution of the carbonation.
