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只为“实用”而设计——易格斯e-spool和Triflex R TRLF产品获得iF设计大奖
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《国内外机电一体化技术》 2013年第5期13-13,共1页
易格斯在iF大奖中'梅开二度'。iF设计奖的国际评审团将奖项颁给易格斯e-spool和Triflex R TRLF产品。2款来自易格斯的拖链产品获得了50位国际专家评审团的青睐。e-spool可替代传统的电缆卷筒。标准的拖链在轴上缠绕和展开。复... 易格斯在iF大奖中'梅开二度'。iF设计奖的国际评审团将奖项颁给易格斯e-spool和Triflex R TRLF产品。2款来自易格斯的拖链产品获得了50位国际专家评审团的青睐。e-spool可替代传统的电缆卷筒。标准的拖链在轴上缠绕和展开。复位弹簧用于调整长度和张力。 展开更多
关键词 易格斯 Triflex R trlf e-spool IF 复位弹簧 拖链 专家评审团 电缆卷筒 安装空间 舞台设备
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pH对Eu(Ⅲ)在氧化铝上吸附行为的影响 被引量:2
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作者 章毛连 王祥科 陈磊 《武汉大学学报(理学版)》 CAS CSCD 北大核心 2005年第6期691-694,共4页
在N2环境下,离子强度为0.1 mol/L 的NaClO4溶液中,考察了不同pH值(3.0~11.0)对Eu(Ⅲ)在氧化铝上吸附行为的影响,用荧光时间衰减光谱法研究了Eu(Ⅲ) 在氧化铝表面上的化学形态.结果表明,Eu(Ⅲ)在氧化铝上的吸附随pH值的升高而增强,在较... 在N2环境下,离子强度为0.1 mol/L 的NaClO4溶液中,考察了不同pH值(3.0~11.0)对Eu(Ⅲ)在氧化铝上吸附行为的影响,用荧光时间衰减光谱法研究了Eu(Ⅲ) 在氧化铝表面上的化学形态.结果表明,Eu(Ⅲ)在氧化铝上的吸附随pH值的升高而增强,在较低pH值(<4.0)溶液中,绝大部分Eu以自由的Eu3+存在于溶液中;在较高pH值(>6.9)溶液中,Eu(Ⅲ)在氧化铝上的吸附形态会失去大部分水,形成化学吸附,吸附形态为≡(Al-O)-Eu2+*(H2O)4. 展开更多
关键词 荧光时间衰减光谱法 氧化铝 EU 吸附
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Spectroscopic investigations on the effect of humic acid on the formation and solubility of secondary solid phases of Ln_2(CO_3)_3 被引量:1
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作者 Stella Antoniou Ioannis Pashalidis +1 位作者 Andre Gessner Michael U Kumke 《Journal of Rare Earths》 SCIE EI CAS CSCD 2011年第6期516-521,共6页
The formation of secondary Ln(III) solid phases (e.g., Nd2(CO3)3 and Sm2(CO3)3) was studied as a function of the humic acid concentration in 0.1 mol/L NaClO4 aqueous solution in the neutral pH range (5–6.5)... The formation of secondary Ln(III) solid phases (e.g., Nd2(CO3)3 and Sm2(CO3)3) was studied as a function of the humic acid concentration in 0.1 mol/L NaClO4 aqueous solution in the neutral pH range (5–6.5). The solid phases under investigation were prepared by alkaline precipitation under 100% CO2 atmosphere and characterized by attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), X-ray diffraction (XRD), time-resolved laser fluorescence spectroscopy (TRLFS), diffuse reflectance ultraviolet-visible (DR-UV-Vis), Raman spectroscopy, and solubility measurements. The spectroscopic data obtained indicated that Nd2(CO3)3 and Sm2(CO3)3 were stable and remained the solubility limiting solid phases even in the presence of increased humic acid concentration (0.5 g/L) in solution. Upon base addition in the Ln(III)-HA system, decomplexation of the previously formed Ln(III)-humate complexes and precipitation of two distinct phases occurred, the inorganic (Ln2(CO3)3) and the organic phase (HA), which was adsorbed on the particle surface of the former. Nevertheless, humic acid affected the particle size of the solid phases. Increasing humic acid concentration resulted in decreasing crystallite size of the Nd2(CO3)3 and increasing crystallite size of the Sm2(CO3)3 solid phase, and affected inversely the solubility of the solid phases. However, this impact on the solid phase properties was expected to be of minor relevance regarding the chemical behavior and migration of trivalent lanthanides and actinides in the geosphere. 展开更多
关键词 lanthanide ions humic acid solid phase SOLUBILITY RAMAN trlfS DR-UV-Vis rare earths
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