Results 81 to 90 of about 3,804,411 (250)

In situ formed Mg(BH4)2 for improving hydrolysis properties of MgH2

Journal of Magnesium and Alloys
The hydrolysis of MgH2 delivers high hydrogen capacity (15.2 wt%), which is very attractive for real-time hydrogen supply. However, the formation of a surface passivation Mg(OH)2 layer and the large excess of H2O required to ensure complete hydrolysis ...
Yongyang Zhu, Mili Liu, liming Zeng, Yin Wang, Daifeng Wu, Rui Li, Qing Zhou, Renheng Tang, Fangming Xiao   +8 more
doaj   +1 more source

Numerical Testing of The Rare Earth Hypothesis using Monte Carlo Realisation Techniques

, 2010
The Search for Extraterrestrial Intelligence (SETI) has thus far failed to provide a convincing detection of intelligent life. In the wake of this null signal, many "contact pessimistic" hypotheses have been formulated, the most famous of which is the ...
Annis, Brin, Cresswell, Duncan H. Forgan, Ken Rice, Maccone, Ostlie, Paardekooper, Parkinson, Prialnik, Rocha-Pinto, Rocha-Pinto, Rolleston, Sartoretti, Ward   +14 more
core   +1 more source

Synthesis, Structure and Iodine Adsorption Properties of a Ni Cluster-Based Supramolecular Framework

Molecules
The capture of radioactive iodine (129I or 131I) is of significant importance for the production of nuclear power and the treatment of nuclear waste.
Jingyi Qiu, Linxia Tang, Ziang Nan, Luyao Liu, Qing Li, Wei Wang, Zhu Zhuo, Dongwei Zhang, Yougui Huang, Liangliang Zhang   +9 more
doaj   +1 more source

Effect of Organic Substrates on the Photocatalytic Reduction of Cr(VI) by Porous Hollow Ga2O3 Nanoparticles

Nanomaterials, 2018
Porous hollow Ga2O3 nanoparticles were successfully synthesized by a hydrolysis method followed by calcination. The prepared samples were characterized by field emission scanning electron microscope, transmission electron microscope, thermogravimetry and
Jin Liu, Huihui Gan, Hongzhang Wu, Xinlei Zhang, Jun Zhang, Lili Li, Zhenling Wang   +6 more
doaj   +1 more source

Collapse of the hyperfine magnetic field at the Ru site in ferromagnetic rare earth intermetallics

, 2009
The M\"{o}ssbauer Effect(ME) is frequently used to investigate magnetically ordered systems. One usually assumes that the magnetic order induces a hyperfine magnetic field, $B_{hyperfine}$, at the ME active site. This is the case in the ruthenates, where
B. Coqblin, D. Coffey, J. W. Lynn, M. B. Maple, M. DeMarco, M. Haka, M. Peter, P. Blaha, P. C. Ho, P. I. Kripyakevich, Q. Huang, S. Toorongian, T. Sayles, Ø. Fischer   +13 more
core   +1 more source

Current progress and future challenges in rare-earth-free permanent magnets

Acta Materialia, 2018
Permanent magnets (PM) are critical components for electric motors and power generators. Key properties of permanent magnets, especially coercivity and remanent magnetization, are strongly dependent on microstructure.
J. Cui, M. Kramer, Lin Zhou, Fei Liu, A. Gabay, G. Hadjipanayis, B. Balasubramanian, D. Sellmyer   +7 more
semanticscholar   +1 more source

Local structure of REFeAsO (RE=La, Pr, Nd, Sm) oxypnictides studied by Fe K-edge EXAFS

, 2009
Local structure of REOFeAs (RE=La, Pr, Nd, Sm) system has been studied as a function of chemical pressure varied due to different rare-earth size. Fe K-edge extended X-ray absorption fine structure (EXAFS) measurements in the fluorescence mode has ...
A. BIANCONI, A. IADECOLA, B. JOSEPH, D. MAHAJAN, L. SIMONELLI, M. FILIPPI, M. FRATINI, N.L. SAINI, S. AGRESTINI   +8 more
core   +1 more source

Thermodynamics and experimental analysis of effect of basic element and modified element Zr on phase composition of NiCoCrAlY bond coating alloy

Cailiao gongcheng
The service performance and operation life of thermal barrier coatings are closely related to the phase composition and structure of the bond coat alloy， which is directly determined by its composition.
CHEN Xuyang, XIN Wenbin, ZHANG Jing, SONG Xiwen, MU Rende, CHANG Zhendong, CAI Yan   +6 more
doaj   +1 more source

Persistent luminescence in rare-earth doped nitrido-silicates [PDF]

, 2011
Some luminescent materials are able to continue emitting light for hours after they have been excited, a phenomenon known as persistent luminescence. The majority of persistent phosphors known today are based on aluminates or silicates and emit in the ...
Poelman, Dirk, Smet, Philippe, Van den Eeckhout, Koen   +2 more
core  

An experimental measurement of the staggered magnetization curve for a Haldane spin chain

, 1998
Long-range magnetic ordering in R_2 Ba Ni O_5 (R=magnetic rare earth) quasi-1-dimensional mixed-spin antiferromagnets is described by a simple mean-field model that is based on the intrinsic staggered magnetization function of isolated Haldane spin ...
A. Zheludev, A. Zheludev, A. Zheludev, A. Zheludev, D. J. Scalapino, E. García-Matres, E. García-Matres, E. García-Matres, E. Ressouche, E. S. Sorensen, F. D. M. Haldane, G. Xu, I. Affleck, J. A. Alonso, J. Akimitsu, J. Darriet, J. F. DiTusa, K. Kakurai, L. P. Regnault, L. P. Regnault, O. Golinelli, O. Golinelli, P. P. Mitra, R. M. Morra, S. Ma, S. Maslov, S. Maslov, S. Raymond, T. Kobayashi, T. Sakaguchi, T. Sakai, T. Yokoo, T. Yokoo, W. J. L. Buyers   +33 more
core   +1 more source