Reduction behavior of preoxidized synthetic ilmenite was studied by means of Mossbauer spectra. In the course of reduction, iron component in the samples is reduced in stepwise: Fe 3+ →Fe 2+ →Fe 0, and some...Reduction behavior of preoxidized synthetic ilmenite was studied by means of Mossbauer spectra. In the course of reduction, iron component in the samples is reduced in stepwise: Fe 3+ →Fe 2+ →Fe 0, and some intermediate compounds, such as Fe 3O 4, Fe 2TiO 4 etc . and their solid solution may be generated besides Fe 2O 3 and FeTiO 3. If the reduction temperature is higher than 1173 K, the metallization needs only half time of the case when the temperature is lower than 1073 K.展开更多
Red blood cells (RBC) of the patients with cirrhosis and with primary liver cancer were studied by using Mossbauer spectroscopy. The measurements of RBC from normal adults were made as control. Results showed that the...Red blood cells (RBC) of the patients with cirrhosis and with primary liver cancer were studied by using Mossbauer spectroscopy. The measurements of RBC from normal adults were made as control. Results showed that the subspectrum representing deoxy-Hb either disappeared or diminished, but no other subspectrum was detected in the samples from the patients. In addition, the immune function of RBC of these two types of patients was measured by using immune-adherence haemagglutination (IAHA), which indicated that its immune function was significantly lower than that of normal adults (P【0.01). These experimental results showed that the components of hemoglobin in RBC are correlated with the immune function of RBC.展开更多
About 100 crude Chinese mineral drug samples were investigated with M&’ssbauer spectroscopy, X-ray diffraction analysis and atomic absorption spectroscopy. The classifications, species and components of Chinese m...About 100 crude Chinese mineral drug samples were investigated with M&’ssbauer spectroscopy, X-ray diffraction analysis and atomic absorption spectroscopy. The classifications, species and components of Chinese mineral drugs are elucidated. The pharmaceutic and curative mechanisms of these mineral drugs are discussed.展开更多
A series of SmTiFe11-xCox compounds where x ranges from zero to five, have been studied by Fe Mossbauer spectroscopy, X-ray diffraction and related magnetic measurements. The radom site occupation of Co atom in SmTiFe...A series of SmTiFe11-xCox compounds where x ranges from zero to five, have been studied by Fe Mossbauer spectroscopy, X-ray diffraction and related magnetic measurements. The radom site occupation of Co atom in SmTiFe11-xCox was found when x≥1. The temperature dependence of the magnetic hyperfine field for SmTiFe11 and the Co concentration dependence of the magnetic hyperfine field for the samples, SmTiFe11-xCox are obtained. Also the Debye temperature of SmTiFe11 have been estimated from the experiments.展开更多
文摘Reduction behavior of preoxidized synthetic ilmenite was studied by means of Mossbauer spectra. In the course of reduction, iron component in the samples is reduced in stepwise: Fe 3+ →Fe 2+ →Fe 0, and some intermediate compounds, such as Fe 3O 4, Fe 2TiO 4 etc . and their solid solution may be generated besides Fe 2O 3 and FeTiO 3. If the reduction temperature is higher than 1173 K, the metallization needs only half time of the case when the temperature is lower than 1073 K.
基金The Project Supported by National Natural Science Foundation of China
文摘Red blood cells (RBC) of the patients with cirrhosis and with primary liver cancer were studied by using Mossbauer spectroscopy. The measurements of RBC from normal adults were made as control. Results showed that the subspectrum representing deoxy-Hb either disappeared or diminished, but no other subspectrum was detected in the samples from the patients. In addition, the immune function of RBC of these two types of patients was measured by using immune-adherence haemagglutination (IAHA), which indicated that its immune function was significantly lower than that of normal adults (P【0.01). These experimental results showed that the components of hemoglobin in RBC are correlated with the immune function of RBC.
基金The Project Supported by National Natural Science Foundation of China
文摘About 100 crude Chinese mineral drug samples were investigated with M&’ssbauer spectroscopy, X-ray diffraction analysis and atomic absorption spectroscopy. The classifications, species and components of Chinese mineral drugs are elucidated. The pharmaceutic and curative mechanisms of these mineral drugs are discussed.
基金The Project Supported by National Natural Science Foundation of China
文摘A series of SmTiFe11-xCox compounds where x ranges from zero to five, have been studied by Fe Mossbauer spectroscopy, X-ray diffraction and related magnetic measurements. The radom site occupation of Co atom in SmTiFe11-xCox was found when x≥1. The temperature dependence of the magnetic hyperfine field for SmTiFe11 and the Co concentration dependence of the magnetic hyperfine field for the samples, SmTiFe11-xCox are obtained. Also the Debye temperature of SmTiFe11 have been estimated from the experiments.