冲击载荷下饱和砂土中流动和破坏的X光观测

介绍脉冲X光机和医用X光机的特性，应用这两种设备进行一系列饱和砂土的冲击加载实验。利用医用X光机拍摄到了饱和砂土在冲击载荷作用下产生的横断裂缝、纵向排水通道以及密实沉降的照片，得到了横断裂缝和纵向排水通道的出现规律，从而为研究饱和砂土冲击液化后结构破坏与密实沉降的机理提供了一种实验观测手段。

Financial x-ray

An over view of the financial x-ray service. JL

EDTA溶胶凝胶法制备La_2Ni_(1-x)M_xO_4(M=Cu,Fe)稀土复合氧化物

本文以EDTA溶胶凝胶法合成K2NiF4型稀土复合氧化物La2Ni1-xMxO4(M=Cu,Fe),并对反应生成粉体分别进行SEM表征与XRD测试。结果表明,选取合适的制备工艺,可以形成La2Ni1-xMxO4(M=Cu,Fe)稀土复合氧化物材料;随着掺杂离子半径增大,生成材料晶格常数a增大同时,c减少,粉体颗粒粒径较大,同时少量杂相存在。

Análisis dieléctrico del compuesto La(1-x)Ca(x)MnO3 [x=0.2]

Lan honen helburua La1-x Cax MnO3 [x ~ 0.2] (perovskiten familiakoa) laginaren azterketan oinarritzen da. "High resolution dielectric analyzer" tresnari esker permitibitate dielektrikoa neurtuko da eta honen bitartez erresistentzia eta eroankortasun elektrikoa. Azterketa hau [10-2, 107] Hz maiztasun-tarte batean eta tenperatura desberdinetan (150K, 170K, 190K, 210K, 230K, 300K) burutuko da, ondoren materialak magnitude hauen bariazioekiko duen erantzuna aztertuz.

Dextran and protamine-based solid lipid nanoparticles as potential vectors for the treatment of X-linked juvenile retinoschisis

This is a copy of an article published in the Human gene therapy © 2012 copyright Mary Ann Liebert, Inc.; Human gene therapy is available online at: http://online.liebertpub.com.

Malcolm X y Steve Biko: la difícil recuperación de una identidad

Antonio Duplá Ansuategui, Piedad Frías Nogales e Iban Zaldúa (editores)

Small angle X-ray scattering of the colloidal crystal

The monodisperse polystyrene spheres are assembled into the colloidal crystal on the glass substrate by vertical deposition method, which is aimed at the so-called photonic crystal applications. The structural information of the bulk colloidal crystal is crucial for understanding the crystal growth mechanism and developing the various applications of colloidal crystal. Small-angle X-ray scattering (SAXS) technique was used to obtain the bulk structure of the colloidal crystal at Beamline 1W2A of BSRF. It is found that the SAXS pattern is sensitive to the relative orientation between the colloidal sample and the incident X-ray direction. The crystal lattice was well distinguished and determined by the SAXS data.