, 2015 本文以电石渣为主要原料制备纳米碳酸钙,提出采用柠檬酸控制纳米碳酸钙晶型及粒径的方法。通过X射线粉末衍射仪(XRD)、扫描电子显微镜(SEM)、傅里叶红外(FT-IR)研究了柠檬酸添加量、添加时间、反应温度对纳米碳酸钙晶型及粒径的影响,通过在线粒度仪(FBRM)测定不同条件下碳酸钙结晶诱导期的变化情况。研究表明:柠檬酸浓度低于1%时,碳酸钙的晶型主要是方解石,粒径300~600nm,随着柠檬酸浓度的提高,碳酸钙中的球霰石含量增多,粒径50~500 nm;加入柠檬酸时,碳酸钙结晶诱导期延长,主要是柠檬酸的 ...
王志, 曹建尉, 黄亮亮, 任丽会
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[Lead exposure aggravates Aβ<sub>1-42</sub>-induced microglial activation through mitochondrial calcium uniporter-mediated mitochondrial calcium accumulation]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoChen L +4 more
europepmc +1 more source
, 2017 围绕磷石膏加压碳酸化转化过程,首先通过实验研究了原料种类对加压碳酸化转化过程的影响,进一步采用Aspen plus流程模拟软件深入分析了各工艺参数对磷石膏加压碳酸化过程平衡转化率的影响规律。结果表明,在加压条件下碳酸化反应均可在5 min时达到平衡,其中分析纯无水硫酸钙更容易完全转化,而二水硫酸钙及磷石膏因含有结晶水或其他杂质,使得其难以完全转化。增大初始氨水浓度、N/S(氨和原料中SO3的摩尔比)以及适量提高反应温度与体系压力,均能有效提高磷石膏加压碳酸化反应平衡转化率。特别是在高温和加压条件下 ...
李会泉 +9 more
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[Anemoside B4 inhibits non-small cell lung cancer metastasis by modulating epithelial-mesenchymal transition mediated by the MAPK and Keap1/Nrf2 signaling pathways]. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue BanSu Q +7 more
europepmc +1 more source
Al_2O_3和二元碱度对炼钢炉渣中磷酸盐富集机理的综合影响
, 2016 以六元Ca O-Si O2-Fe O-P2O5-Fe_2O_3-Al_2O_3炼钢渣系为研究对象,结合热力学计算和实验检测,分析(Al_2O_3)和二元碱度B综合变化对该六元渣系中磷酸盐富集行为的影响.结果表明:炼钢炉渣中生成游离C2S含量对磷酸盐富集相n C2SC3P内的(P2O5)至关重要.该渣系中增加Si O2会降低总的C2S生成量,增加Al_2O_3可促进钙铝黄长石C2AS相生成,降低游离C2S(f-C2S)的量,进而影响磷酸盐的富集.六元Ca O-Si O2-Fe O-P2O5 ...
郭敏, 李晋岩, 杨学民, 张梅
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[Rosa laevigata Michx. inhibits pulmonary arterial smooth muscle cell proliferation in hypertension by modulating the Src-AKT1 axis]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoYang Z +6 more
europepmc +1 more source
[Research progress on calcification mechanism and anti-calcification strategies of vascular grafts]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiSu X, Qiu F, Wang H, Han Q.
europepmc +1 more source
[Frontier research on smart delivery biomaterials in the field of oral tissue engineering]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiWu Y, Liao J.
europepmc +1 more source
[Determination of two pancreatic stimulants in equine urine using ionic liquid-based deep eutectic solvent-assisted liquid-liquid microextraction and ultra-high performance liquid chromatography-tandem mass spectrometry]. [PDF]
Se PuChen Q, Ma ZC, Li YN.
europepmc +1 more source
[Allogeneic hematopoietic stem cell transplantation for RASGRP2 gene-related inherited platelet function disorders: a case report and literature review]. [PDF]
Zhonghua Xue Ye Xue Za ZhiWang CL +5 more
europepmc +1 more source