Laizhou SONG
材料科学技术（英文）
A novel thermally induced graft polymerization technique was used to modify a polyvinylidene fluoride (PVDF) hollow fibre microfiltration membrane. An artificial neural network (ANN) was applied to optimize the prepared condition of the membrane. The optimized dosing of acrylic acid (AA), acrylamide (AM), N, N′-methylenebisacrylamide (NMBA) and potassium persulphate (KSP) designed by ANN was that AA was 40.63 ml/L; AM acted as 6.25 g/L; NMBA was 1.72 g/L and KSP was 1.5 g/L, respectively. The thermal stability of the PVDF modified hollow fibre membrane (PVDF-PAA) was investigated by thermogravimetric (TG) and differential scanning calorimetry (DSC) analysis. The polycrystallinity of the PVDF-PAA membrane was evaluated by X-ray diffraction (XRD) analysis. The complex formation of the modified membrane was ascertained by Fourier transform infrared spectroscopy (FTIR). The morphology of the PVDF-PAA membrane was studied by environmental scanning electron microscopy (ESEM). The surface compositions of the membrane were analyzed by X-ray photoelectron spectroscopy (XPS). The adsorption capacity of Cu2+ ion on the PVDF-PAA hollow fibre membrane was also investigated.
关键词:
Microfiltration hollow fibre membrane
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Physics of Life Reviews
Commentaries by Philip W.T. Pong, Nongyue He, S.D. Liang, Tao Song, Yuri Gaididei and Sergey Volkov and Alexander Y. Grosberg on my review article (Pang, 2011 [1]) are answered. The validity of Davydov's mechanism of bio-energy transport, the completeness of theory, outstanding problems, the normalization and validity of wave function of the system in Pang' model as well as other related problems are elucidated in detail. (C) 2011 Elsevier B.V. All rights reserved.
关键词:
biological temperature;3 channels;soliton;model
李莉
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李庆芬
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郑磊
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徐庭栋
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杜善义
钢铁研究学报
以工业用12Cr1MoV钢为研究对象,通过俄歇电子能谱分析方法(AES),对磷在恒温过程中的非平衡晶界偏聚浓度进行了测定.获得的磷在钢中的非平衡晶界偏聚动力学曲线直接验证了非平衡晶界偏聚动力学理论中的Xu-Song模型.
关键词:
晶界偏聚
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临界时间
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扩散
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钢
