利用廉价易得的邻苯二甲酸酐和无毒环保的氨基酸——甘氨酸为原料,利用操作简单、经济的熔融法为合成手段,合成了对聚丙烯具有β成核作用的成核剂——N-邻苯二甲酰甘氨酸(NPG)。将其添加到PPH-T03中,对其性能和结晶行为进行了评价,结果...利用廉价易得的邻苯二甲酸酐和无毒环保的氨基酸——甘氨酸为原料,利用操作简单、经济的熔融法为合成手段,合成了对聚丙烯具有β成核作用的成核剂——N-邻苯二甲酰甘氨酸(NPG)。将其添加到PPH-T03中,对其性能和结晶行为进行了评价,结果表明:该物质是一种有效的β晶型聚丙烯成核剂。当添加量为0.1%时,β晶相对含量达到80.1%,冲击强度由纯PP的3.85 k J/m^2提高到9.86 k J/m^2,热变形温度提高约20℃。展开更多
Objective： The study evaluated the effectiveness of autologous hematopoietic stem cell transplantation （AHSCT） in the treatment of lymphoblastic lymphoma （LL）. Methods： We relxospectively analyzed the data from ...Objective： The study evaluated the effectiveness of autologous hematopoietic stem cell transplantation （AHSCT） in the treatment of lymphoblastic lymphoma （LL）. Methods： We relxospectively analyzed the data from 41 patients with chemotherapy-sensitive LL who underwent hematopoietic stem cell transplantation （HSCT） from December 1989 to December 2009 in a single institution. Results： HSCT was conducted as first-line consolidation therapy and salvage therapy in 36 and 5 patients, respectively. The median follow-up was 97.1 months （range, 24.6-173.1 months）. The 5-year overall survival （OS） and event-free survival （EFS） rate were 64% and 47% for the initially treated patients, respectively, and were both 20% for the relapsed ones. Bone marrow （BM） involvement and chemotherapy cycles prior to transplantation were identified as significant prognostic factors for EFS in multivariate analysis. Conclusions These results confirm that AHSCT is a reasonable option for chemotherapy-sensitive LL patients in first complete remission （CR1）.展开更多
In this research,to remove sulfur and nitrogen compounds from heavy naphtha,various nanocatalysts were prepared through supporting NiMo over nanoporous graphene and evaluated in hydrodesulfurization and hydrodenitroge...In this research,to remove sulfur and nitrogen compounds from heavy naphtha,various nanocatalysts were prepared through supporting NiMo over nanoporous graphene and evaluated in hydrodesulfurization and hydrodenitrogenation reactions.The nanoporous graphene was initially functionalized in order to facilitate the metal being loaded on it.Three different methods were used to functionalize the nanoporous graphene.The NiMo/nanoporous graphene nanocatalysts were characterized by field emission scanning electron microscopy,Fourier transform infrared spectroscopy,X-ray diffraction,inductively coupled plasma optical emission spectrometry,temperature-programmed reduction,nitrogen adsorption-desorption isotherms and transmission electron microscopy techniques.Catalyst performance was evaluated in terms of conversions of sulfur,mercaptans(R-SH)and nitrogen compounds.It was found that the functionalized nanoporous graphene support could significantly enhance the catalytic performance in comparison with the industrial NiMo/alumina catalyst.Among the functionalized graphene supports,amine-functionalized graphene exhibited the best results.By using NiMo supported over amine-functionalized graphene,the conversions of total sulfur and R-SH reached 97.8%and 98.1%,respectively.展开更多
文摘利用廉价易得的邻苯二甲酸酐和无毒环保的氨基酸——甘氨酸为原料,利用操作简单、经济的熔融法为合成手段,合成了对聚丙烯具有β成核作用的成核剂——N-邻苯二甲酰甘氨酸(NPG)。将其添加到PPH-T03中,对其性能和结晶行为进行了评价,结果表明:该物质是一种有效的β晶型聚丙烯成核剂。当添加量为0.1%时,β晶相对含量达到80.1%,冲击强度由纯PP的3.85 k J/m^2提高到9.86 k J/m^2,热变形温度提高约20℃。
基金supported in part by grants from the National Technologies ResearchDevelopment Program of China during the 9th Five-Year Plan Period (A20199610396-906-01-12)+1 种基金the Ying Dong Fok Foundation for Young College Teacher (B231996001)Chinese National Major Project for New Drug Innovation (2008ZX09312, 2012ZX09303012)
文摘Objective： The study evaluated the effectiveness of autologous hematopoietic stem cell transplantation （AHSCT） in the treatment of lymphoblastic lymphoma （LL）. Methods： We relxospectively analyzed the data from 41 patients with chemotherapy-sensitive LL who underwent hematopoietic stem cell transplantation （HSCT） from December 1989 to December 2009 in a single institution. Results： HSCT was conducted as first-line consolidation therapy and salvage therapy in 36 and 5 patients, respectively. The median follow-up was 97.1 months （range, 24.6-173.1 months）. The 5-year overall survival （OS） and event-free survival （EFS） rate were 64% and 47% for the initially treated patients, respectively, and were both 20% for the relapsed ones. Bone marrow （BM） involvement and chemotherapy cycles prior to transplantation were identified as significant prognostic factors for EFS in multivariate analysis. Conclusions These results confirm that AHSCT is a reasonable option for chemotherapy-sensitive LL patients in first complete remission （CR1）.
文摘In this research,to remove sulfur and nitrogen compounds from heavy naphtha,various nanocatalysts were prepared through supporting NiMo over nanoporous graphene and evaluated in hydrodesulfurization and hydrodenitrogenation reactions.The nanoporous graphene was initially functionalized in order to facilitate the metal being loaded on it.Three different methods were used to functionalize the nanoporous graphene.The NiMo/nanoporous graphene nanocatalysts were characterized by field emission scanning electron microscopy,Fourier transform infrared spectroscopy,X-ray diffraction,inductively coupled plasma optical emission spectrometry,temperature-programmed reduction,nitrogen adsorption-desorption isotherms and transmission electron microscopy techniques.Catalyst performance was evaluated in terms of conversions of sulfur,mercaptans(R-SH)and nitrogen compounds.It was found that the functionalized nanoporous graphene support could significantly enhance the catalytic performance in comparison with the industrial NiMo/alumina catalyst.Among the functionalized graphene supports,amine-functionalized graphene exhibited the best results.By using NiMo supported over amine-functionalized graphene,the conversions of total sulfur and R-SH reached 97.8%and 98.1%,respectively.
