, 1987 本文实验观察了多孔铁矿石球团的还原行为。采用等温未反应收缩核模型的混合控制方程处理不同孔隙度球团的逐段还原试验结果,得出了反应速度常数和有效扩散系数与孔隙度的函数关系。由此,推测出还原气体扩散通过球团的机理。针对高孔隙度球团还原所具有的区域反应特征,本文建立了多级区域反应模型 ...
陈宇飞, 张宗诚
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[<i>Wuyou</i> Decoction alleviates hippocampal neuronal injury and improves synaptic plasticity in rats with chronic sleep deprivation by inhibiting ferroptosis <i>via</i> activating the Nrf2/HO-1 pathway]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoHe L +7 more
europepmc +1 more source
为研究桥建分离高铁车站噪声声场特性，解决该类型车站站台在列车快速经过时噪声值过大不满足铁路车站相关标准的问题，以国内某城市新建桥建分离高铁车站为研究对象，分别开展不同工况下列车通过时的噪声测试；基于周期性结构理论与2.5D声学边界元法，建立桥建分离高铁车站噪声预测模型，并与实测数据进行对比验证。基于测试结果和预测结果，研究了不同工况下列车经过车站时的噪声特性，分析了桥建分离高铁车站噪声声场特性，提出了车站降噪的不同方案，并对各方案降噪效果加以比较进而确定更优降噪方案。研究结果表明 ...
成功 +5 more
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, 2012 本研究采用箱式气氛电阻炉模拟转底炉工艺,考察不同温度及恒温时间含碳球团还原熔分情况,探讨较低温度下温度及恒温时间对珠铁形成的影响。试验结果表明:温度和恒温时间对珠铁的形成起着至关重要的作用,在1350℃以内且不恒温的条件下,尽管还原已经完成但不能实现渣铁分离。而温度为1300℃且恒温20min时,能够很好地实现渣(固态)铁(熔态)分离,且铁的收得率能够达到90 ...
段东平, 韩宏亮, 甘宇栋
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[Clinical analysis of 4 cases of pediatric collagenous gastritis]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiDai NN +7 more
europepmc +1 more source
, 2006 萨本铁(Peter Pan Tieh Sah,1900-1987),有机化学家、生理学家、药物学家,是20世纪为数不多的享有国际声誉的中国科学家之一。1946年移居美国。其一生中所发表的论文数量,远居同一时代的中国科学家之首,而且有多篇在21世纪初还为人引用。主要依据清华大学和日据北京大学的有关档案资料、辅仁大学校友会的有关资料、萨本铁所发表的学术论文、20世纪20-40年代的相关刊物,以及萨氏后人的访谈及其所提供的资料,首次较为细致地勾勒了萨本铁在清华学堂、美国威斯康星大学求学 ...
张藜
core
[Overexpression of miR-183-5p enhances malignant phenotype and inhibits ferroptosis of triple-negative breast cancer cells by negatively regulating KLHL24]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoWang K, Hou S, Li Y, Liu Q, Yin C, Li H.
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Paisagem é uma paisagem é uma paisagem é uma paisagem
, 2013 O presente artigo pretende identificar uma certa ideia de paisagem num ponto específico da obra de João Jacinto, ponto esse onde a presença da paisagem será, porventura, menos evidente. Pelo caminho, tecemos algumas considerações sobre as possibilidades da pintura contemporânea, a relação desta com a imagem digital e com a sua rica tradição.
openaire +1 more source
[Gastrodin alleviates hypobaric hypoxia-induced brain injury in rats by reducing neuronal ferroptosis <i>via</i> the P53/SLC7A11/GPX4 signaling axis]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoYang J +7 more
europepmc +1 more source
[Chronic iron overload induces diminished ovarian reserve in mice <i>via</i> iron metabolism dysregulation-mediated oxidative stress and endocrine dysfunction]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoYu J, Chu J, Liang C.
europepmc +1 more source