期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
Effects of Spinach Powder Fat-Soluble Extract on Proliferation of Human Gastric Adenocarcinoma Cells 被引量:2
1
作者 hetao HUANGCHENG-YU 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 1999年第4期247-252,共6页
Four kinds of assays were used to study the effect of a fat-soluble extract of spinach powder (SPFE) on the proliferation of human gastric adenocareinoma cell line (SGC-7901) in vitro.These studies included: (Ⅰ) cell... Four kinds of assays were used to study the effect of a fat-soluble extract of spinach powder (SPFE) on the proliferation of human gastric adenocareinoma cell line (SGC-7901) in vitro.These studies included: (Ⅰ) cell growth assay, (Ⅱ) colony forming assay, (Ⅲ) MTT colorimetric assay, and (Ⅳ) 3H-TdR incorporation assay. The concentrations of SPFE expressed as the level of β-carotene in the medium were 2×10-8, 2×10-7 and 2×10-6 mol/L β-carotene in assays (Ⅰ)~(Ⅲ), but 4×10- 8, 4×10-7 and 4×10-6 mol/L β-caretene in assay (Ⅳ) respectively. The results indicated that SPFE inhibited the prolifendion and colony forming ability of SGC-7901 cells. And in MTT assay, SPFE inhibited the viability of SGC7901 cells, but no inhibitory effect of SPFE was observed on the viability of lymphocytes in peripheral blood of healthy people. Finally, in the 3H-TdR incorporation test, both SPFE and β-carotene showed significant inhibitory effects on DNA synthesis in SGC-7901 cells, but SPFE was more effective than β-carotene. 展开更多
关键词 SGC Chen cell line Effects of Spinach Powder Fat-Soluble Extract on Proliferation of Human Gastric Adenocarcinoma Cells
暂未订购
射流管式伺服阀关键参数对产品抗污染能力提升 被引量:2
2
作者 陈冬冬 金瑶兰 +3 位作者 张宪 渠立鹏 贺涛 钟传磊 《船舶工程》 CSCD 北大核心 2023年第S01期417-420,共4页
为了研究射流管伺服阀关键结构参数对伺服阀抗污染能力的影响,建立伺服阀整阀剪切力数值模型,并利用AMESim仿真软件对整阀剪切力进行仿真分析,验证了数值模型的准确性。运用数值手段分析关键参数力矩马达安匝数、弹簧管刚度以及阀芯直... 为了研究射流管伺服阀关键结构参数对伺服阀抗污染能力的影响,建立伺服阀整阀剪切力数值模型,并利用AMESim仿真软件对整阀剪切力进行仿真分析,验证了数值模型的准确性。运用数值手段分析关键参数力矩马达安匝数、弹簧管刚度以及阀芯直径对伺服阀恢复压差及抗污染能力的影响,获得了关键参数最佳匹配的数值;试验验证了伺服阀在不同关键结构参数下,对伺服阀恢复压差及抗污染能力的影响,为射流管伺服阀结构设计、提升伺服阀抗污染能力提供了理论依据。 展开更多
关键词 抗污染能力 射流管伺服阀 关键参数 AMESIM
原文传递
Research on Cost Control of Public Hospitals under the Background of New Medical Reform
3
作者 hetao 《外文科技期刊数据库(文摘版)经济管理》 2022年第7期071-075,共5页
As the country vigorously promotes the medical reform, public hospitals urgently need to optimize the cost management mechanism and process, explore the idea of cost control, seek benefits from management, and improve... As the country vigorously promotes the medical reform, public hospitals urgently need to optimize the cost management mechanism and process, explore the idea of cost control, seek benefits from management, and improve the overall operation and management level, so as to promote the hospital to a high-quality sustainable development path. 展开更多
关键词 public hospital cost control fine management
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部