颔面部肿块的超声检查,目前正处于探讨阶段。对于颌面部软组织肿块的超声检查(除涎腺外),只有某些文献做过报道。为了探索颌面部肿块的超声特点,我们把从1987—1991年来经 B 超检查后,又经手术病理及其它方法证实的24例颌面部软组织肿...颔面部肿块的超声检查,目前正处于探讨阶段。对于颌面部软组织肿块的超声检查(除涎腺外),只有某些文献做过报道。为了探索颌面部肿块的超声特点,我们把从1987—1991年来经 B 超检查后,又经手术病理及其它方法证实的24例颌面部软组织肿块的超声表现做如下回顾性的对比分析。展开更多
B 型超声检查的临床应用不仅对妇科肿瘤的检出提供有价值诊断、而且对卵巢肿瘤良恶性改变,术前可提供可靠的诊断依据,我们就49例卵巢肿瘤的超声图象做进一步分析探讨:资料我们对49例患卵巢肿瘤患者术前进行超声检查,术后均经病理证实,年...B 型超声检查的临床应用不仅对妇科肿瘤的检出提供有价值诊断、而且对卵巢肿瘤良恶性改变,术前可提供可靠的诊断依据,我们就49例卵巢肿瘤的超声图象做进一步分析探讨:资料我们对49例患卵巢肿瘤患者术前进行超声检查,术后均经病理证实,年龄20-60岁。展开更多
On the basis of the study of volcanic products during 1199-1200AD eruption of Baitou Mountain (Baitoushan), the released volatile content was estimated by comparing Cl, F, S, H2O concentrations of undegassed glass inc...On the basis of the study of volcanic products during 1199-1200AD eruption of Baitou Mountain (Baitoushan), the released volatile content was estimated by comparing Cl, F, S, H2O concentrations of undegassed glass inclusions with those of degassed matrix glasses. The calculations show that volatile yields, released from the melt, are 109.88×106 ton of HCI, 196.80×106 ton of HF, 1477.84×106 ton of H2O, 23.14×106 ton of SO2, which could have formed 35.43×106 ton of H2SO4 aerosol in the atmosphere. They could have substantial effect on paleoclimate and paleo-environment.展开更多
基金This work was financially supported by "95" Key Projects of Chinese Academy of Sciences (GrantNo. KZ951-A1-402-06) the National Natural Science Foundation of China (NSFC) (Grant Nos. 40024202 and 49972030). We thank Cheng, J. and Song, Y., Institu
文摘On the basis of the study of volcanic products during 1199-1200AD eruption of Baitou Mountain (Baitoushan), the released volatile content was estimated by comparing Cl, F, S, H2O concentrations of undegassed glass inclusions with those of degassed matrix glasses. The calculations show that volatile yields, released from the melt, are 109.88×106 ton of HCI, 196.80×106 ton of HF, 1477.84×106 ton of H2O, 23.14×106 ton of SO2, which could have formed 35.43×106 ton of H2SO4 aerosol in the atmosphere. They could have substantial effect on paleoclimate and paleo-environment.
